S-93L76A
www.sii-ic.com
LOW VOLTAGE OPERATION
3-WIRE SERIAL E2PROM
© Seiko Instruments Inc., 2004-2011 Rev.5.0_00
Seiko Instruments Inc. 1
The S-93L76A is a low voltage operating, high speed, low current consumption, 3-wire serial E2PROM with a wide operating
voltage range. The S-93L76A has the capacity of 8 K-bit, and the organization is 512-wod × 16 bit. It is capable of sequential
read, at which time addresses are automatically incremented in 16-bit blocks.
The communication method is by the Microwire bus.
Features
• Operating voltage range Read: 1.6 V to 5.5 V
Write: 1.8 V to 5.5 V (WRITE, ERASE)
2.7 V o 5.5 V (WRAL, ERAL)
• Operating frequency: 2.0 MHz (Vcc = 4.5 V to 5.5 V)
• Write time: 10.0 ms max.
• Sequential read capable
• Write protect function during the low power supply voltage
• Endurance: 106 cycles / word*1 (Ta = +85°C)
• Data retention: 100 years (Ta = +25°C)
20 years (Ta = +85°C)
• Memory capacity: 8 K-bit
• Initial shipment data: FFFFh
• Lead-free, Sn 100%, halogen-free*2
*1. For each address (Word: 16-bit)
*2. Refer to “ Product Name Structure” for details.
Packages
• 8-Pin SOP (JEDEC)
• 8-Pin TSSOP
• TMSOP-8
• SNT-8A
Caution This product is intended to use in general electronic devices such as consumer electronics, office
equipment, and communications devices. Before using the product in medical equipment or
automobile equipment including car audio, keyless entry and engine control unit, contact to SII is
indispensable.
LOW VOLTAGE OPERATION 3-WIRE SERIAL E2PROM
S-93L76A Rev.5.0_00
Seiko Instruments Inc.
2
Pin Configurations
1. 8-Pin SOP (JEDEC)
8-Pin SOP (JEDEC)
Top view Table 1
Pin No. Symbol Description
1 CS
Chip select input
2 SK
Serial clock input
3 DI
Serial data input
4 DO
Serial data output
5 GND
Ground
6 TEST*1 T est
7 NC No connection
8 VCC Power supply
*1. Connect to GND or VCC.
Even if this pin is not connected, performance is not affected so long
as the absolute maximum rating is not exceeded.
7
6
5
8
2
3
4
1
Figure 1
S-93L76AD0I-J8T1x
2. 8-Pin TSSOP
8-Pin TSSOP
Top view Table 2
Pin No. Symbol Description
1 CS
Chip select input
2 SK
Serial clock input
3 DI
Serial data input
4 DO
Serial data output
5 GND
Ground
6 TEST*1 T est
7 NC No connection
8 VCC Power supply
7
6
5
8
2
3
4
1
Figure 2
S-93L76AD0I-T8T1x
*1. Connect to GND or VCC.
Even if this pin is not connected, performance is not affected so long
as the absolute maximum rating is not exceeded.
LOW VOLTAGE OPERATION 3-WIRE SERIAL E2PROM
Rev.5.0_00 S-93L76A
Seiko Instruments Inc. 3
3. TMSOP-8
TMSOP-8
Top view Table 3
Pin No. Symbol Description
1 CS
Chip select input
2 SK
Serial clock input
3 DI
Serial data input
4 DO
Serial data output
5 GND
Ground
6 TEST*1 T est
7 NC No connection
8 VCC Power supply
*1. Connect to GND or VCC.
Even if this pin is not connected, performance is not affected so
long as the absolute maximum rating is not exceeded.
7
6
5
8
2
3
4
1
Figure 3
S-93L76AD0I-K8T3U
4. SNT-8A
SNT-8A
Top view Table 4
Pin No. Symbol Description
1 NC
No connection
2 VCC
Power supply
3 SK
Serial clock input
4 CS
Chip select input
5 DO
Serial data output
6 DI
Serial data input
7 TEST*1 T est
8 GND Ground
7
6
5
8
2
3
4
1
Figure 4
S-93L76AD0I-I8T1x
*1. Connect to GND or VCC.
Even if this pin is not connected, performance is not affected so long
as the absolute maximum rating is not exceeded.
Remark 1. Refer to the “Package drawings” for the details.
2. x: G or U
3. Please select products of environmental code = U for Sn 100%, halogen-free products.
LOW VOLTAGE OPERATION 3-WIRE SERIAL E2PROM
S-93L76A Rev.5.0_00
Seiko Instruments Inc.
4
Block Diagram
Memory array
Data register
Address
decoder
Mode decode logic
Output buffer
VCC
GND
DO
DI
CS
Clock generator
SK Voltage detector
Figure 5
LOW VOLTAGE OPERATION 3-WIRE SERIAL E2PROM
Rev.5.0_00 S-93L76A
Seiko Instruments Inc. 5
Instruction Set
Table 5
Instruction Start Bit Operation Code Address Data
SK input clock 1 2 3 4 5 6 7 8 9 10 11 12 13 14 to 29
READ (Read data) 1 1 0 x A8 A7 A6 A5 A4 A3 A2 A1 A0 D15 to D0 Output*1
WRITE (Write data) 1 0 1 x A8 A7 A6 A5 A4 A3 A2 A1 A0 D15 to D0 Input
ERASE (Erase data) 1 1 1 x A8 A7 A6 A5 A4 A3 A2 A1 A0 ⎯
WRAL (Write all) 1 0 0 0 1 x x x x x x x x D15 to D0 Input
ERAL (Era se all) 1 0 0 1 0 x x x x x x x x ⎯
EWEN (Write enable) 1 0 0 1 1 x x x x x x x x ⎯
EWDS (Write disable) 1 0 0 0 0 x x x x x x x x ⎯
*1. When the 16-bit data in the specified address has been output, the data in the next address is output.
Remark x: Don't care
LOW VOLTAGE OPERATION 3-WIRE SERIAL E2PROM
S-93L76A Rev.5.0_00
Seiko Instruments Inc.
6
Absolute Maximum Ratings
Table 6
Item Symbol Ratings Unit
Power supply voltage VCC −0.3 to +7.0 V
Input voltage VIN −0.3 to VCC + 0.3 V
Output voltage VOUT −0.3 to VCC V
Operating ambient temperature Topr −40 to +85 °C
Storage temperature Tstg −65 to +150 °C
Caution The absolute maximum ratings are rated values exceeding which the product could suffer physical damage. These
values must therefore not be exceeded under any conditions.
Recommended Operating Conditions
Table 7
Ta = −40°C to +85°C
Item Symbol Conditions Min. Max.
Unit
READ, EWDS 1.6 5.5 V
WRITE, ERASE , EWEN 1.8 5.5 V
Power supply voltage VCC WRAL, ERAL 2.7 5.5 V
VCC = 4.5 V to 5.5 V 2.0 VCC V
VCC = 2.7 V to 4.5 V 0.8 × VCC V
CC V
High level input voltage VIH VCC = 1.6 V to 2.7 V 0.8 × VCC V
CC V
VCC = 4.5 V to 5.5 V 0.0 0.8 V
VCC = 2.7 V to 4.5 V 0.0 0.2 × VCC V
Low level input voltage VIL VCC = 1.6 V to 2.7 V 0.0 0.15 × VCC V
Pin Capacitance
Table 8
(Ta = +25°C, f = 1.0 MHz, VCC = 5.0 V)
Item Symbol Conditions Min. Max. Unit
Input Capacitance CIN VIN = 0 V ⎯ 8 pF
Output Capacitance COUT VOUT = 0 V ⎯ 10 pF
Endurance
Table 9
Item Symbol Operating Ambient Temperature Min. Max. Unit
Endurance NW Ta = −40°C to +85°C 106 ⎯ cycles / word*1
*1. For each address (Word: 16-bit)
Data Retention
Table 10
Item Symbol Operating Ambient Temperature Min. Max. Unit
Ta = +25°C 100 ⎯ year
Data Retention ⎯ Ta = −40°C to +85°C 20 ⎯ year
LOW VOLTAGE OPERATION 3-WIRE SERIAL E2PROM
Rev.5.0_00 S-93L76A
Seiko Instruments Inc. 7
DC Electrical Characteristics
Table 11
Ta = −40°C to +85°C
VCC = 4.5 V to 5.5 V VCC = 2.5 V to 4.5 V VCC = 1.6 V to 2.5 V
Item Symbol Conditions
Min. Max. Min. Max. Min. Max.
Unit
Current consumption
(READ) ICC1 DO no load ⎯ 0.8 ⎯ 0.5 ⎯ 0.4 mA
Table 12
Ta = −40°C to +85°C
VCC = 4.5 V to 5.5 V VCC = 1.8 V to 4.5 V
Item Symbol Conditions
Min. Max. Min. Max.
Unit
Current consumption
(WRITE) ICC2 DO no load ⎯ 2.0 ⎯ 1.5 mA
Table 13
Ta = −40°C to +85°C
VCC =
4.5 V to 5.5 V VCC =
2.5 V to 4.5 V VCC =
1.6 V to 2.5 V
Item Symbol Conditions
Min. Max. Min. Max. Min. Max.
Unit
Standby current
consumption ISB CS = GND, DO = Open,
Other inputs to VCC or GND ⎯ 2.0 ⎯ 2.0 ⎯ 2.0 μA
Input leakage
current ILI VIN = GND to VCC ⎯ 1.0 ⎯ 1.0 ⎯ 1.0 μA
Output leakage
current ILO V
OUT = GND to VCC ⎯ 1.0 ⎯ 1.0 ⎯ 1.0 μA
IOL = 2.1 mA ⎯ 0.4 ⎯ ⎯ ⎯ ⎯ V Low level output
voltage VOL IOL = 100 μA ⎯ 0.1 ⎯ 0.1 ⎯ 0.1 V
IOH = −400 μA 2.4 ⎯ ⎯ ⎯ ⎯ ⎯ V
IOH = −100 μA VCC − 0.3 ⎯ V
CC − 0.3 ⎯ ⎯ ⎯ V
High level output
voltage VOH IOH = −10 μA VCC − 0.2 ⎯ V
CC − 0.2 ⎯ V
CC − 0.2 ⎯ V
Write enable latch
data hold voltage VDH Only when write
disable mode 1.5 ⎯ 1.5 ⎯ 1.5 ⎯ V
LOW VOLTAGE OPERATION 3-WIRE SERIAL E2PROM
S-93L76A Rev.5.0_00
Seiko Instruments Inc.
8
AC Electrical Characteristics
Table 14 Measurement Conditions
Input pulse voltage 0.1 × VCC to 0.9 × VCC
Output reference voltage 0.5 × VCC
Output load 100 pF
Table 15
Ta = −40°C to +85°C
VCC = 4.5 V to 5.5 V VCC = 2.5 V to 4.5 V VCC = 1.6 V to 2.5 V
Item Symbol
Min. Max. Min. Max. Min. Max.
Unit
CS setup time tCSS 0.2 — 0.4 — 1.0 — μs
CS hold time tCSH 0 — 0 — 0 — μs
CS deselect time tCDS 0.2 — 0.2 — 0.4 — μs
Data setup time tDS 0.1 — 0.2 — 0.4 — μs
Data hold time tDH 0.1 — 0.2 — 0.4 — μs
Output delay time tPD — 0.4 — 0.8 — 2.0 μs
Clock frequency fSK 0 2.0 0 1.0 0 0.25 MHz
SK clock time “L” *1 tSKL 0.1 — 0.25 — 1.0 — μs
SK clock time “H” *1 tSKH 0.1 — 0.25 — 1.0 — μs
Output disable time tHZ1, tHZ2 0 0.15 0 0.5 0 1.0 μs
Output enable time tSV 0 0.15 0 0.5 0 1.0 μs
*1. The clock cycle of the SK clock (frequency: fSK) is 1 / fSK μs. This clock cycle is determined by a combination of several
AC characteristics, so be aware that even if the SK clock cycle time is minimized, the clock cycle (1 / fSK) cannot be
made equal to tSKL (min.) + tSKH (min.).
Table 16
Ta = −40°C to +85°C
VCC = 1.8 V to 5.5 V
Item Symbol
Min. Typ. Max.
Unit
Write time tPR ⎯ 4.0 10.0 ms
LOW VOLTAGE OPERATION 3-WIRE SERIAL E2PROM
Rev.5.0_00 S-93L76A
Seiko Instruments Inc. 9
t SKH
t CDS
tCSS
CS
Valid data
Valid data
DI
tSKL
SK
t SV t HZ2
tCSH
t HZ1
t PD tPD
tDS tDH
t DS t DH
High-Z High-Z
High-Z
DO
DO
(READ)
(VERIFY)
High-Z
*1
1 / fSK
*
2
*1. Indicates high impedance.
*2. 1 / fSK is the SK clock cycle. This clock cycle is determined by a combination of several AC characteristics,
so be aware that even if the SK clock cycle time is minimized, the clock cycle (1 / fSK) cannot be made equal
to tSKL (min.) + tSKH (min.).
Figure 6 Timing Chart
LOW VOLTAGE OPERATION 3-WIRE SERIAL E2PROM
S-93L76A Rev.5.0_00
Seiko Instruments Inc.
10
Initial shipment data
Initial shipment data of all addresses is “FFFFh”.
Operation
All instructions are executed by making CS “H” and then inputting DI at the rising edge of the SK pulse. An instruction
is input in the order of its start bit, instruction, address, and data. The start bit is recognized when “H” of DI is input at
the rising edge of SK after CS has been made “H”. As long as DI remains “L”, therefore, the start bit is not recognized
even if the SK pulse is input after CS has been made “H”. The SK clock input while DI is “L” before the start bit is input
is called a dummy clock. By inserting as many dummy clocks as required before the start bit, the number of clocks the
internal serial interface of the CPU can send out and the number of clocks necessary for operation of the serial memory
IC can be adjusted. Inputting the instruction is complete when CS is made “L”. CS must be made “L” once during the
period of tCDS in between instructions.
“L” of CS indicates a standby status. In this status, input of SK and DI is invalid, and no instruction is accepted.
1. Reading (READ)
The READ instruction is used to read the data at a specified address. When this instruction is executed, the
address A0 is input at the rising edge of SK and the DO pin, which has been in a high-impedance (High-Z) state,
outputs “L”. Subsequently, 16 bits of data are sequentially output at the rising edge of SK.
If SK is output after the 16-bit data of the specified address has been output, the address is automatically
incremented, and the 16-bit data of the next address is then output. By inputting SK sequentially with CS kept at
“H”, the data of the entire memory space can be read. When the address is incremented from the last address (A8
… A1 A0 = 1 … 1 1), it returns to the first address (A8 … A1 A0 = 0 … 0 0).
A
8
A
7
A
6
A
5
A
4
A
3
A
2
A
1
A
0
+1 A
8
A
7
A
6
A
5
A
4
A
3
A
2
A
1
A
0
+2
CS
1 3 4 5 6 7 8 9
10 11 12 13 14 15 16
2
26 27 28 29 30 31 42 43 44 45 46 32 48
SK
1 1 X 0 A
8
A
7
A
6
A
5
A
4
A
3
A
2
A
1
A
0
DI
0
D
15
D
14
D
13
D
15
D
14
D
13
D
2
D
1
D
0
D
15
D
14
D
13
D
2
D
1
D
0
High-Z
DO
High-Z
47
Figure 7 Read Timing
LOW VOLTAGE OPERATION 3-WIRE SERIAL E2PROM
Rev.5.0_00 S-93L76A
Seiko Instruments Inc. 11
2. Writing (WRITE, ERASE, WRAL, ERAL)
Write instructions (WRITE, ERASE, WRAL, and ERAL) are used to start writing data to the non-volatile memory by
making CS “L” after the specified number of clocks has been input.
The write operation is completed within the write time tPR (10 ms) no matter which write instruction is used. The
typical write time is less than half 10 ms. If the end of the write operation is known, therefore, the write cycle can be
minimized. To ascertain the end of a write operation, make CS “L” to start the write operation and then make CS
“H” again to check the status of the DO output pin. This series of operations is called a verify operation.
If DO outputs “L” during the verify operation period in which CS is “H”, it indicates that a write operation is in
progress. If DO outputs “H”, it indicates that the write operation is finished. The verify operation can be executed
as many times as required. This operation can be executed in two ways. One is detecting the positive transition of
DO output from “L” to “H” while holding CS at “H”. The other is detecting the positive transition of DO output from
“L” to “H” by making CS “H” once and checking DO output, and then returning CS to “L”.
During the write period, SK and DI are invalid. Do not input any instructions during this period. Input an instruction
while the DO pin is outputting “H” or is in a high-impedance state. Even while the DO pin is outputting “H”, DO
immediately goes into a high-impedance (High-Z) state if “H” of DI (start bit) is input at the rising edge of SK.
Keep DI “L” during the verify operation period.
2. 1 Writing data (WRITE)
This instruction is used to write 16-bit data to a specified address.
After making CS “H”, input a start bit, the WRITE instruction, an address, and 16-bit data. If data of more than
16 bits is input, the written data is sequentially shifted at each clock, and the 16 bits input last are the valid
data. The write operation is started when CS is made “L”. It is not necessary to set data to “1” before it is
written.
DO
<1>
2
3
4
5
6 7 8 9 10 11 12 13 14 29
0 1 X A8 A7 A6 A5 A4 A3 A2 A1 A0 D15 D0
DI
SK
CS
High-Z
t
CDS
t
SV
t
PR
Bus
y
Read
y
Standb
y
High-
Z
t
HZ1
Verif
y
1
Figure 8 Data Write Timing
LOW VOLTAGE OPERATION 3-WIRE SERIAL E2PROM
S-93L76A Rev.5.0_00
Seiko Instruments Inc.
12
2. 2 Erasing data (ERASE)
This instruction is used to erase specified 16-bit data. All the 16 bits of the data are “1”. After making CS “H”,
input a start bit, the ERASE instruction, and an address. It is not necessary to input data. The data erase
operation is started when CS is made “L”.
DO
<1>
2
3
4
5
6 7 8 9 10 11 12 13
1 1 X A8 A7 A6 A5 A4 A3 A2 A1 A0
DI
SK
CS
High-Z
t
CDS
t
SV
t
PR
Busy
Ready
Standb
High-Z
t
HZ1
Verify
1
Figure 9 Data Erase Timing
2. 3 Writing to chip (WRAL)
This instruction is used to write the same 16-bit data to the entire address space of the memory.
After making CS “H”, input a start bit, the WRAL instruction, an address, and 16-bit data. Any address may be
input. If data of more than 16 bits is input, the written data is sequentially shifted at each clock, and the 16-bit
data input last is the valid data. The write operation is started when CS is made “L”. It is not necessary to set
the data to “1” before it is written.
DO
<1>
2
3
4
5
6 7 8 9 10 11 12 13 14 29
0 0 0 1 D15 D0
DI
SK
CS
High-Z
t
CDS
t
SV
t
PR
Bus
y
Read
y
Standb
High-
Z
t
HZ1
Verif
y
1
8Xs
Figure 10 Chip Write Timing
2. 4 Erasing chip (ERAL)
This instruction is used to erase the data of the entire address space of the memory.
All the data is “1”. After making CS “H”, input a start bit, the ERAL instruction, and an address. Any address
may be input. It is not necessary to input data. The chip erase operation is started when CS is made “L”.
DO
<1>
2
3
4
5678910 11 12 13
0 0 1 0
DI
SK
CS
High-Z
t
CDS
t
SV
t
PR
Busy
Ready
Standb
High-Z
t
HZ1
Verify
1
8Xs
Figure 11 Chip Erase Ti ming
LOW VOLTAGE OPERATION 3-WIRE SERIAL E2PROM
Rev.5.0_00 S-93L76A
Seiko Instruments Inc. 13
3. Write enable (EWEN) and write disable (EWDS)
The EWEN instruction is used to enable a write operation. The status in which a write operation is enabled is called
the program-enabled mode.
The EWDS instruction is used to disable a write operation. The status in which a write operation is disabled is
called the program-disabled mode.
The write operation is disabled upon power application and detection of a low supply voltage. To prevent an
unexpected write operation due to external noise or a CPU malfunctions, it should be kept in write disable mode
except when performing write operations, after power-on and before shutdown.
<1>
2
3
45678910 11 12 13
0 0
DI
SK
CS
11 = EWEN
00 = EWDS
Standb
y
1
8Xs
Figure 12 Write Enable / Disable Timing
Start Bit
A start bit is recognized by latching the high level of DI at the rising edge of SK after changing CS to high (start bit
recognition). A write operation begins by inputting the write instruction and setting CS to low. Subsequently, by setting
CS to high again, the DO pin outputs a low level if the write operation is still in progress and a high level if the write
operation is complete (verify operation). Therefore, only after a writ e operation, in order to input the next command, CS
is set to high, which switches the DO pin from a high-impedance state (High-Z) to a data output state. However, if start
bit is recognized, the DO pin returns to the high-impedance state (refer to Figure 6 Timing Chart).
Make sure that data output from the CPU does not interfere with the data output from the serial memory IC when
configuring a 3 -wire interface by connec ting the DI input pin and DO output pin, as such interference may cause a start
bit fetch problem. Take the measures described in “ 3-Wire Interface (Direct Connection between DI and DO)”.
LOW VOLTAGE OPERATION 3-WIRE SERIAL E2PROM
S-93L76A Rev.5.0_00
Seiko Instruments Inc.
14
Write Protect Function during the Low Pow er Supply Voltage
The S-93L76A provides a built-in detector to detect a low power supply voltage and disable writing. When the power
supply voltage is low or at power application, the write instruct ions (WRITE, ERASE, WRAL, and ERAL) are cancelled,
and the write disable state (EWDS) is automatically set. The detection voltage and the release voltage are 1.4 V typ.
(refer to Figure 13).
Therefore, when a write operation is performed after the power supply voltage has dropped and then risen again up to
the level at which writing is possible, a write enable instruction (EWEN) must be sent before a write instruction (WRITE,
ERASE, WRAL, or ERAL) is executed.
When the power supply voltage drops during a write operation, the data being written to an address at that time is not
guaranteed.
Release voltage (+VDET)
1.4 V typ.
Power supply voltage
Detection voltage (−VDET)
1.4 V typ.
Write instruction cancelled
Write disable state (EWDS) automatically set
Figure 13 Operation during Low Pow er Supply Voltage
LOW VOLTAGE OPERATION 3-WIRE SERIAL E2PROM
Rev.5.0_00 S-93L76A
Seiko Instruments Inc. 15
3-Wire Interface (Direct Connection between DI and DO)
There are two types of serial interface configurations: a 4-wire interface configured using the CS, SK, DI, and DO pins,
and a 3-wire interface that connects the DI input pin and DO output pin.
When the 3-wire interface is employed, a period in which the data output from the CPU and the data output from the
serial memory collide may occur, causing a malfunction. To prevent such a malfunction, connect the DI and DO pins of
the S-93L76A via a resistor (10 kΩ to 100 kΩ) so that the data output from the CPU takes precedence in being input to
the DI pin (refer to Figure 14).
CPU
DI
SIO
DO
S-93L76A
R: 10 kΩ to 100 kΩ
Figure 14 Connection of 3-Wire Interface
Input Pin and Output Pin
1. Connection of input pins
All the input pins of the S-93L76A employ a CMOS structure, so design the equipment so that high impedance will not
be input while the S-93L76A is operating. Especially, deselect the CS input (a low level) when turning on / off power
and during standby. When the CS pin is deselected (a low level), incorrect data writing will not occur. Connect the
CS pin to GND via a resistor (10 kΩ to 100 kΩ pull-down resistor). To prevent malfunction, it is recommended to use
equivalent pull-down resistors for pins other than the CS pin.
2. Equivalent circuit of input pin and output pin
The following shows the equivalent circuits of input pins of the S-93L76A. None of the input pins incorporate pull-up
and pull-down elements, so special care must be taken when designing to prevent a floating status.
Output pins are high-level / low-level / high-impedance tri-state outputs. The TEST pin is disconnected from the
internal circuit by a switching transistor during normal operation. As long as the absolute maximum rating is satisfied,
the TEST pin and internal circuit will never be connected.
LOW VOLTAGE OPERATION 3-WIRE SERIAL E2PROM
S-93L76A Rev.5.0_00
Seiko Instruments Inc.
16
2. 1 Input pin
CS
Figure 15 CS Pin
SK, DI
Figure 16 SK, DI Pin
TEST
Figure 17 TEST Pin
LOW VOLTAGE OPERATION 3-WIRE SERIAL E2PROM
Rev.5.0_00 S-93L76A
Seiko Instruments Inc. 17
2. 2 Output pin
DO
VCC
Figure 18 DO Pin
3. Input pin noise elimination time
The S-93L76A includes a built-in low-pass filter to eliminate noise at the SK, DI, and CS pins. This means that if the
supply voltage is 5.0 V (at room temperature), noise with a pulse width of 20 ns or less can be eliminated.
Note, therefore, that noise with a pulse width of more than 20 ns will be recognized as a pulse if the voltage exceeds
VIH / VIL.
Precaution
● Do not apply an electrostatic discharge to this IC that exceeds the performance ratings of the built-in electrostatic
protection circuit.
● SII claims no responsibility for any and all disputes arising out of or in connection with any infringement of the
products including this IC upon patents owned by a third party.
LOW VOLTAGE OPERATION 3-WIRE SERIAL E2PROM
S-93L76A Rev.5.0_00
Seiko Instruments Inc.
18
Characteristics (Typical Data)
1. DC Characteristics
1. 1 Current consumption (READ) ICC1
vs. ambient temperature Ta 1. 2 Current consumption (READ) ICC1
vs. ambient temperature Ta
Ta (°C)
0.4
0.2
VCC = 5.5 V
fSK = 2 MHz
DATA = 0101
0 −40 0 85
ICC1
(mA)
Ta (°C)
0.4
0.2
VCC = 3.3 V
fSK = 500 kHz
DATA = 0101
0 −40 0 85
ICC1
(mA)
1. 3 Current consumption (READ) ICC1
vs. ambient temperature Ta 1. 4 Current consumption (READ) ICC1
vs. power supply voltage VCC
ICC1
(mA)
Ta (°C)
0.4
0.2
VCC = 1.8 V
fSK = 10 kHz
DATA = 0101
0 −40 0 85
1 MHz
∼
500 kHz
ICC1
(mA)
0.4
0.2
0 2 3 4 5 6 7
Ta = 25°C
fSK = 1 MHz, 500 kHz
DATA = 0101
VCC (V)
1. 5 Current consumption (READ) ICC1
vs. power supply voltage VCC 1. 6 Current consumption (READ) ICC1
vs. Clock frequency fSK
100 kHz
10 kHz
ICC1
(mA)
0.4
0.2
0 2 3 4 5 6 7
VCC (V)
Ta = 25°C
fSK = 100 kHz, 10 kHz
DATA = 0101
ICC1
(
mA
)
0.4
0.2
0
VCC = 5.0 V
Ta = 25°C
1 M 2M 10M 10 k 100 k
fSK (Hz)
LOW VOLTAGE OPERATION 3-WIRE SERIAL E2PROM
Rev.5.0_00 S-93L76A
Seiko Instruments Inc. 19
1. 7 Current consumption (WRITE) ICC2
vs. ambient temperature Ta 1. 8 Current consumption (WRITE) ICC2
vs. ambient temperature Ta
Ta (°C)
1.0
0.5
VCC = 5.5 V
0 −40 0 85
ICC2
(mA)
ICC2
(mA)
Ta (°C)
1.0
0.5
VCC = 3.3 V
0 −40 0 85
1. 9 Current consumption (WRITE) ICC2
vs. ambient temperature Ta 1. 10 Current consumption (WRITE) ICC2
vs. power supply voltage VCC
Ta (°C)
1.0
0.5
VCC = 2.7 V
0 −40 0 85
ICC2
(mA)
1.0
0.5
0 2 3 4 5 6 7
Ta = 25°C
VCC (V)
ICC2
(mA)
1. 11 Current consumption in standby mode ISB
vs. ambient temperature Ta 1. 12 Current consumption in standby mode ISB
vs. power supply voltage VCC
Ta (°C)
1.0
0.5
VCC = 5.5 V
CS = GND
0 −40 0 85
ISB
(μA)
ISB
(μA)
1.0
0.5
02 3 4 5 6 7
Ta = 25°C
CS = GND
V
CC
(
V
)
LOW VOLTAGE OPERATION 3-WIRE SERIAL E2PROM
S-93L76A Rev.5.0_00
Seiko Instruments Inc.
20
1. 13 Input leakage current ILI
vs. ambient temperature Ta 1. 14 Input leakage current ILI
vs. ambient temperature Ta
1.0
0.5
VCC = 5.5 V
CS, SK, DI,
TEST = 0 V
0 −40 0 85
ILI
(μA)
Ta (°C)
Ta (°C)
1.0
0.5
0 −40 0 85
VCC = 5.5 V
CS, SK, DI,
TEST = 5.5 V
ILI
(μA)
1. 15 Output leakage current ILO
vs. ambient temperature Ta 1. 16 Output leakage current ILO
vs. ambient temperature Ta
Ta (°C)
1.0
0.5
VCC = 5.5 V
DO = 0 V
0 −40 0 85
ILO
(μA)
Ta (°C)
1.0
0.5
VCC = 5.5 V
DO = 5.5 V
0 −40 0 85
ILO
(μA)
1. 17 High-level output voltage VOH
vs. ambient temperature Ta 1. 18 High-level output voltage VOH
vs. ambient temperature Ta
Ta (°C)
4.6
4.4
VCC = 4.5 V
IOH = −400
μ
A
−40 0 85
V
OH
(V)
4.2
Ta (°C)
2.7
2.6
VCC = 2.7 V
IOH = −100
μ
A
−40 0 85
VOH
(V)
2.5
LOW VOLTAGE OPERATION 3-WIRE SERIAL E2PROM
Rev.5.0_00 S-93L76A
Seiko Instruments Inc. 21
1. 19 High-level output voltage VOH
vs. ambient temperature Ta 1. 20 High-level output voltage VOH
vs. ambient temperature Ta
Ta (°C)
2.5
2.4
VCC = 2.5 V
IOH = −100
μ
A
−40 0 85
VOH
(V)
2.3
Ta (°C)
1.9
1.8
VCC = 1.8 V
IOH = −10 μA
−40 0 85
VOH
(V)
1.7
1. 21 Low-level output voltage VOL
vs. ambient temperature Ta 1. 22 Low-level output voltage VOL
vs. ambient temperature Ta
Ta (°C)
0.3
0.2
VCC = 4.5 V
IOL = 2.1 mA
−40 0 85
V
OL
(V)
0.1
Ta (°C)
0.03
0.02
VCC = 1.8 V
IOL = 100
μ
A
−40 0 85
VOL
(V)
0.01
1. 23 High-level output current IOH
vs. ambient temperature Ta 1. 24 High-level output current IOH
vs. ambient temperature Ta
Ta (°C)
−20.0
−10.0
VCC = 4.5 V
VOH = 2.4 V
0 −40 0 85
IOH
(mA)
Ta (°C)
−2
−1
VCC = 2.7 V
VOH = 2.4 V
0−40 0 85
IOH
(mA)
LOW VOLTAGE OPERATION 3-WIRE SERIAL E2PROM
S-93L76A Rev.5.0_00
Seiko Instruments Inc.
22
1. 25 High-level output current IOH
vs. ambient temperature Ta 1. 26 High-level output current IOH
vs. ambient temperature Ta
Ta (°C)
−2
−1
VCC = 2.5 V
VOH = 2.2 V
0 −40 0 85
IOH
(mA)
Ta (°C)
−1.0
−0.5
VCC = 1.8 V
VOH = 1.6 V
0
−40 0 85
IOH
(mA)
1. 27 Low-level output current IOL
vs. ambient temperature Ta 1. 28 Low-level output current IOL
vs. ambient temperature Ta
Ta (°C)
20
10
VCC = 4.5 V
VOL = 0.4 V
0
−40 0 85
IOL
(mA)
Ta (°C)
1.0
0.5
VCC = 1.8 V
VOL = 0.1 V
0−40 0 85
IOL
(mA)
1. 29 Input inverted voltage VINV
vs. power supply voltage VCC 1. 30 Input inverted voltage VINV
vs. ambient temperature Ta
3.0
1.5
0 1 2 3 4 5 6
Ta = 25°C
CS, SK, DI
VCC (V)
VINV
(V)
7
Ta (°C)
3.0
2.0
VCC = 5.0 V
CS, SK, DI
0
−40 0 85
VINV
(
V
)
LOW VOLTAGE OPERATION 3-WIRE SERIAL E2PROM
Rev.5.0_00 S-93L76A
Seiko Instruments Inc. 23
1. 31 Low supply voltage detection voltage −VDET
vs. ambient temperature Ta 1. 32 Low supply voltage release voltage +VDET
vs. ambient temperature Ta
Ta (°C)
2.0
1.0
0
−40 0 85
−VDET
(V)
Ta (°C)
2.0
1.0
0−40 0 85
+VDET
(V)
2. AC Characteristics
2. 1 Maximum operating frequency fMAX.
vs. pow er supply voltage VCC 2. 2 Write time tPR
vs. power supply voltage VCC
10k
2 3 4 5
Ta = 25°C
VCC (V)
f
MAX.
(Hz)
1
100k
1M
2M
4
2
2 3 4 5 6 7
Ta = 25°C
VCC (V)
tPR
(ms)
1
2. 3 Write time tPR
vs. ambient temperature Ta 2. 4 Write time tPR
vs. ambient temperature Ta
Ta (°C)
6
4
VCC = 5.0 V
−40 0 85
2
tPR
(ms)
Ta (°C)
6
4
VCC = 3.0 V
−40 0 85
2
t
PR
(ms)
LOW VOLTAGE OPERATION 3-WIRE SERIAL E2PROM
S-93L76A Rev.5.0_00
Seiko Instruments Inc.
24
2. 5 Write time tPR
vs. ambient temperature Ta 2. 6 Data output delay time tPD
vs. ambient temperature Ta
Ta (°C)
6
4
VCC = 2.7 V
−40 0 85
2
t
PR
(ms)
Ta (°C)
0.3
0.2
VCC = 4.5 V
−40 0 85
0.1
tPD
(μs)
2. 7 Data output delay time tPD
vs. ambient temperature Ta 2. 8 Data output delay time tPD
vs. ambient temperature Ta
Ta (°C)
0.6
0.4
VCC = 2.7 V
−40 0 85
0.2
tPD
(μs)
Ta (°C)
1.5
1.0
VCC = 1.8 V
−40 0 85
0.5
tPD
(μs)
LOW VOLTAGE OPERATION 3-WIRE SERIAL E2PROM
Rev.5.0_00 S-93L76A
Seiko Instruments Inc. 25
Product Name Structure
1. Product name
1. 1 8-Pin SOP (JEDEC), 8-Pin TSSOP, SNT-8A,
Package name (abbreviation) and IC packing specifications
J8T 1: 8-P in SOP (JEDEC), Tape
T8T1: 8-Pin TSSOP, Tape
I8T1: SNT-8A, Tape
Fixed
Product name
S-93L76A: 8 K-bit
S-93L76A D0I − xxxx x
Environmental code
U: Lead-free (Sn 100%), halogen-free
G: Lead-free (for details, please contact our sales office)
1. 2 TMSOP-8
Package name (abbreviation) and IC packing specifications
K8T3: TMSOP-8, Tape
Fixed
Product name
S-93L76A: 8 K-bit
S-93L76A D0I − K8T3 U
Environmental code
U: Lead-free (Sn 100%), halogen-free
2. Packages
Drawing code
Package name Package Tape Reel Land
Environmental code = G FJ008-A-P-SD FJ008-D-C-SD FJ008-D-R-SD
8-Pin SOP
(JEDEC) Environmental code = U FJ008-A-P-SD FJ008-D-C-SD FJ008-D-R-S1 ⎯
Environmental code = G FT008-A-P-SD FT008-E-C-SD FT008-E-R-SD
8-Pin
TSSOP Environmental code = U FT008-A-P-SD FT008-E-C-SD FT008-E-R-S1 ⎯
TMSOP-8 FM008-A-P-SD FM008-A-C-SD FM008-A-R-SD ⎯
SNT-8A PH008-A-P-SD PH008-A-C-SD PH008-A-R-SD PH008-A-L-SD
No. FJ008-A-P-SD-2.1
No.
TITLE
SCALE
UNIT mm
SOP8J-D-PKG Dimensions
Seiko Instruments Inc.
FJ008-A-P-SD-2.1
0.4±0.05
1.27
0.20±0.05
5.02±0.2
14
85
No.
TITLE
SCALE
UNIT mm
5
8
1
4
ø2.0±0.05
ø1.55±0.05 0.3±0.05
2.1±0.1
8.0±0.1
5°max.
6.7±0.1
2.0±0.05
Seiko Instruments Inc.
Feed direction
4.0±0.1(10 pitches:40.0±0.2)
SOP8J-D-Carrier Tape
No. FJ008-D-C-SD-1.1
FJ008-D-C-SD-1.1
No.
TITLE
SCALE
UNIT mm
QTY. 2,000
2±0.5
13.5±0.5
60°
2±0.5
ø13±0.2
ø21±0.8
Seiko Instruments Inc.
Enlarged drawing in the central part
SOP8J-D-Reel
No. FJ008-D-R-SD-1.1
FJ008-D-R-SD-1.1
No.
TITLE
SCALE
UNIT mm
QTY. 4,000
2±0.5
13.5±0.5
60°
2±0.5
ø13±0.2
ø21±0.8
Seiko Instruments Inc.
Enlarged drawing in the central part
SOP8J-D-Reel
No. FJ008-D-R-S1-1.0
FJ008-D-R-S1-1.0
No.
TITLE
SCALE
UNIT
Seiko Instruments Inc.
TSSOP8-E-PKG Dimensions
No. FT008-A-P-SD-1.1
FT008-A-P-SD-1.1
0.17±0.05
3.00 +0.3
-0.2
0.65
0.2±0.1
14
5
8
mm
No.
TITLE
SCALE
UNIT
Seiko Instruments Inc.
ø1.55±0.05
2.0±0.05
8.0±0.1 ø1.55 +0.1
-0.05
(4.4)
0.3±0.05
1
45
8
4.0±0.1
Feed direction
TSSOP8-E-Carrier Tape
No. FT008-E-C-SD-1.0
FT008-E-C-SD-1.0
+0.4
-0.2
6.6
mm
No.
TITLE
SCALE
UNIT
Seiko Instruments Inc.
Enlarged drawing in the central part
No. FT008-E-R-SD-1.0
2±0.5
ø13±0.5
ø21±0.8
13.4±1.0
17.5±1.0
3,000
QTY.
TSSOP8-E-Reel
FT008-E-R-SD-1.0
mm
No.
TITLE
SCALE
UNIT
Seiko Instruments Inc.
Enlarged drawing in the central part
2±0.5
ø13±0.5
ø21±0.8
13.4±1.0
17.5±1.0
4,000
QTY.
TSSOP8-E-Reel
FT008-E-R-S1-1.0
mm
No. FT008-E-R-S1-1.0
No.
TITLE
SCALE
UNIT mm
Seiko Instruments Inc.
2.90±0.2
85
0.2±0.1
0.65±0.1
0.13±0.1
14
TMSOP8-A-PKG Dimensions
No. FM008-A-P-SD-1.0
FM008-A-P-SD-1.0
No.
TITLE
SCALE
UNIT mm
Seiko Instruments Inc.
0.30±0.05
1.00±0.1
1.05±0.05
1.55
2.00±0.05
4.00±0.1
3.25±0.05
4.00±0.1
1
4
58
TMSOP8-A-Carrier Tape
Feed direction
No. FM008-A-C-SD-1.0
FM008-A-C-SD-1.0
+0.1
-0
No.
TITLE
SCALE
UNIT mm
Seiko Instruments Inc.
16.5max.
13.0±0.3
QTY. 4,000
(60°)
(60°)
13±0.2
Enlarged drawing in the central part
TMSOP8-A-Reel
No. FM008-A-R-SD-1.0
FM008-A-R-SD-1.0
1.97±0.03
0.2±0.05
0.48±0.02
0.08
No.
TITLE
SCALE
UNIT mm
Seiko Instruments Inc.
SNT-8A-A-PKG Dimensions
PH008-A-P-SD-2.0
No. PH008-A-P-SD-2.0
0.5
+0.05
-0.02
123 4
56
78
No.
TITLE
SCALE
UNIT mm
Seiko Instruments Inc.
PH008-A-C-SD-1.0
SNT-8A-A-Carrier Tape
No. PH008-A-C-SD-1.0
Feed direction
4.0±0.1
2.0±0.05
4.0±0.1
ø1.5 +0.1
-0
ø0.5±0.1
2.25±0.05
0.65±0.05
0.25±0.05
2134
7865
5°
12.5max.
9.0±0.3
ø13±0.2
(60°) (60°)
Enlarged drawing in the central part
QTY.
PH008-A-R-SD-1.0
No.
TITLE
SCALE
UNIT mm
Seiko Instruments Inc.
SNT-8A-A-Reel
No. PH008-A-R-SD-1.0
5,000
No.
TITLE
SCALE
UNIT mm
SNT-8A-A-Land Recommendation
Seiko Instruments Inc.
PH008-A-L-SD-3.0
0.3
0.20.3
0.20.3
0.52
2.01
0.52
No. PH008-A-L-SD-3.0
0.3 0.2
Caution Making the wire pattern under the package is possible. However, note that the package
may be upraised due to the thickness made by the silk screen printing and of a solder
resist on the pattern because this package does not have the standoff.
www.sii-ic.com
• The information described herein is subject to change without notice.
• Seiko Instruments Inc. is not responsible for any problems caused by circuits or diagrams described herein
whose related industrial properties, patents, or other rights belong to third parties. The application circuit
examples explain typical applications of the products, and do not guarantee the success of any specific
mass-production design.
• When the products described herein are regulated products subject to the Wassenaar Arrangement or other
agreements, they may not be exported without authorization from the approp riate governmental authority.
• Use of the information described herein for other purposes and/or reproduction or copying without the
express permissi on of Seiko Instruments Inc. is strictly prohibited.
• The products described herein cannot be used as part of any device or equipment affecting the human
body, such as exercise equipment, medical equipment, security systems, gas equipment, or any apparatus
installed in airplanes and other vehicle s, without prior written permission of Seiko Instruments Inc.
• The products described herein are not designed to be radiation-p roof.
• Although Seiko Instruments Inc. exerts the greatest possible effort to ensure high quality and reliability, the
failure or malfunction of semiconductor products may occur. The user of these products should therefore
give thorough consideration to safety design, including redundancy, fire-prevention measures, and
malfunction prevention, to prevent any accidents, fires, or comm unity damage that may ensue.