128K x 8 Static RAM
CY7C109B
CY7C1009B
Cypress Semiconductor Corporation 198 Champion Court San Jose,CA 95134-1709 408-943-2600
Document #: 38-05038 Rev. *B Revised October 11, 2005
Features
•High speed
—t
AA = 12 ns
Low active power
495 mW (max. 12 ns)
Low CMOS standby power
55 mW (max .) 4 m W
2.0V Data Retention
Automatic power-down when deselected
TTL-compatible inputs and outputs
Easy memory expansion with CE1, CE2, and OE options
Functional Description[1]
The CY7C109B/CY7C1009B is a high-performance CMOS
static RAM organized as 131,072 words by 8 bits. Easy
memory expansion is provided by an active LOW Chip Enable
(CE1), an active HIGH Chip Enable (CE2), an active LOW
Output Enable (OE), and three-state drivers. Writing to the
device is accomplished by taking Chip Enable One (CE1) and
Write Enable (WE) inputs LOW and Chip Enable Two (CE2)
input HIGH. Data on the eight I/O pins (I/O0 through I/O7) is
then written into the location specified on the address pins (A0
through A16).
Reading from the device is accomplished by taking Chip
Enable One (CE1) and Output Enable (OE) LOW while forcing
Write Enable (WE) and Chip Enable Two (CE2) HIGH. Under
these conditions, the contents of the memory location
specified by the address pins will appear on the I/O pins.
The eight input/output pins (I/O0 through I/O7) are placed in a
high-impedance state when the device is deselected (CE1
HIGH or CE2 LOW), the outputs are disabled (OE HIGH), or
during a write operation (CE1 LOW, CE2 HIGH, and WE LOW).
The CY7C109B is available in standard 400-mil-wide SOJ and
32-pin TSOP type I packages. The CY7C1009B is available in
a 300-mil-wide SOJ package. The CY7C1009B and
CY7C109B are functionally equivalent in all other respects.
Note:
1. For guidelines on SRAM system design, please refer to the ‘System Design Guidelines’ Cypress application note, available on the internet at www.cypress.com.
14
15
Logic Block Diagram Pin Configurations
A1
A2
A3
A4
A5
A6
A7
A8
COLUMN
DECODER
ROW DECO D ER
SENSE AMPS
INPUT BUFFER
POWER
DOWN
WE
OE
I/O0
CE2
I/O1
I/O2
I/O3
512x256x8
ARRAY
I/O7
I/O6
I/O5
I/O4
A0
A11
A13
A12
A
A10
CE1
A
A16
A9
1
2
3
4
5
6
7
8
9
10
11
14 19
20
24
23
22
21
25
28
27
26
Top View
SOJ
12
13
29
32
31
30
16
15 17
18
GND
A16
A14
A12
A7
A6
A5
A4
A3
WE
VCC
A15
A13
A8
A9
I/O7
I/O6
I/O5
I/O4
A2
NC
I/O0
I/O1
I/O2
CE1
OE
A10
I/O3
A1
A0
A11
CE2
A6
A7
A16
A14
A12
WE
VCC
A4
A13
A8
A9OE
TSOP I
Top View
(not to scale)
1
6
2
3
4
5
7
32
27
31
30
29
28
26
21
25
24
23
22
19
20
I/O2
I/O1
GND
I/O7
I/O4
I/O5
I/O6
I/O0
CE
A11
A517
18
8
9
10
11
12
13
14
15
16
CE2
A15
NC
A10
I/O3
A1
A0
A3
A2
Selection Guide 7C109B-12
7C1009B-12 7C109B-15
7C1009B-15 7C109B-20
7C1009B-20 7C109B-25
7C1009B-25 7C109B-35
7C1009B-35 Unit
Maximum Access Time 12 15 20 25 35 ns
Maximum Operating Current 90 80 75 70 60 mA
Maximum CMOS Standby Current 10 10 10 10 10 mA
Maximum CMOS Standby Current
Low Power Version 2 2 2 - - mA
CY7C109B
CY7C1009B
Document #: 38-05038 Rev. *B Page 2 of 11
Maximum Ratings
(Above which the useful life may be impaired. For user guide-
lines, not tested.)
Storage Temperature .. ... ... ................. ........–65°C to +150°C
Ambient Temperature with
Power Applied...... .. ............... .. ... .............. ...–55°C to +125°C
Supply Voltage on VCC to Relative GND[2] ....–0.5V to +7.0V
DC Voltage Applied to Outputs
in High Z State[2] ....................................–0.5V to VCC + 0.5V
DC Input V oltage[2].................................–0.5V to VCC + 0.5V
Current into Outputs (LO W).........................................20 mA
St atic Discharge Voltage............................................>2001V
(per MIL-STD-883, Method 3015)
Latch-Up Current.....................................................>200 mA
Operating Range
Range Ambient
Temperature VCC
Commercial 0°C to +70°C 5V ± 10%
Industrial 40°C to +85°C5V ± 10%
Electrical Characteristics Over the Operating Range
Parameter Description Test Conditions
7C109B-12
7C1009B-12 7C109B-15
7C1009B-15
UnitMin. Max. Min. Max.
VOH Output HIGH Voltage VCC = Min.,
IOH = –4.0 mA 2.4 2.4 V
VOL Output LOW Voltage VCC = Min.,
IOL = 8.0 mA 0.4 0.4 V
VIH Input HIGH Voltage 2.2 VCC + 0.3 2.2 VCC + 0.3 V
VIL Input LOW Voltage[2] –0.3 0.8 0.3 0.8 V
IIX Input Load Current GND < VI < VCC –1 +1 –1 +1 μA
IOZ Output Leakage
Current GND < VI < VCC,
Output Disabled –5 +5 –5 +5 μA
IOS Output Short
Circuit Current[3] VCC = Max.,
VOUT = GND –300 –300 mA
ICC VCC Operating
Supply Current VCC = Max.,
IOUT = 0 mA,
f = fMAX = 1/tRC
90 80 mA
ISB1 Automatic CE
Power-Down Current
—TTL Inputs
Max. VCC, CE1 > VIH
or CE2 < VIL,
VIN > VIH or
VIN < VIL, f = fMAX
45 40 mA
ISB2 Automatic CE
Power-Down Current
—CMOS Inputs
Max. VCC,
CE1 > VCC – 0.3V,
or CE2 < 0.3V,
VIN > VCC – 0.3V,
or VIN < 0.3V, f = 0
10 10 mA
L2 2mA
Notes:
2. Minimum voltage is–2.0V for pulse durations of less than 20 ns.
3. Not more than one output should be shorted at one time. Duration of the short circuit should not exceed 30 seconds.
CY7C109B
CY7C1009B
Document #: 38-05038 Rev. *B Page 3 of 11
Electrical Characteristics Over the Operating Range (continu ed)
Parameter Description Test Con dition s
7C109B-20
7C1009B-20 7C109B-25
7C1009B-25 7C109B-35
7C1009B-35 UnitMin. Max. Min. Max. Min. Max.
VOH Output HIGH Voltage VCC = Min.,
IOH = –4.0 mA 2.4 2.4 2.4 V
VOL Output LOW Voltage VCC = Min.,
IOL = 8.0 mA 0.4 0.4 0.4 V
VIH Input HIGH Voltage 2.2 VCC
+ 0.3 2.2 VCC
+ 0.3 2.2 VCC
+ 0.3 V
VIL Input LOW Voltage[2] –0.3 0.8 –0.3 0.8 –0.3 0.8 V
IIX Input Load Current GND < VI < VCC –1 +1 –1 +1 –1 +1 μA
IOZ Output Leakage
Current GND < VI < VCC,
Output Disabled –5 +5 –5 +5 –5 +5 μA
IOS Output Short
Circuit Current[3] VCC = Max.,
VOUT = GND –300 –300 –300 mA
ICC VCC Operating
Supply Current VCC = Max.,
IOUT = 0 mA,
f = fMAX = 1/tRC
75 70 60 mA
ISB1 Automatic CE
Power-Down Current
TTL Inputs
Max. VCC, CE1 > VIH
or CE2 < VIL,
VIN > VIH or
VIN < VIL, f = fMAX
30 30 25 mA
ISB2 Automatic CE
Power-Down Current
CMOS Inputs
Max. VCC,
CE1 > VCC – 0.3V,
or CE2 < 0.3V,
VIN > VCC – 0.3V,
or VIN < 0.3V, f = 0
10 10 10 mA
L2mA
Capacitance[4]
Parameter Description Test Co nditions Max. Unit
CIN Input Capacitance TA = 25°C, f = 1 MHz,
VCC = 5.0V 9pF
COUT Output Capacitance 8 pF
AC Test Loads and Waveforms
Note:
4. Tested initially and after any design or process changes that may affect these parameters.
90%
10%
3.0V
GND
90%
10%
ALL INPUT PULSES
5V
OUTPUT
30 pF
INCLUDING
JIG AND
SCOPE
5V
OUTPUT
5 pF
INCLUDING
JIG AND
SCOPE
(a) (b)
3 ns 3ns
OUTPUT
R1 480ΩR1 480Ω
R2
255ΩR2
255Ω
167Ω
Equivalent to: VENIN EQUIVALENT
1.73V
THÉ
CY7C109B
CY7C1009B
Document #: 38-05038 Rev. *B Page 4 of 11
Switching Characteristics[5] Over the Op erating Range
Parameter Description
7C109B-12
7C1009B-12 7C109B-15
7C1009B-15
UnitMin. Max. Min. Max.
Read Cycle
tRC Read Cycle Time 12 15 ns
tAA Address to Data Valid 12 15 ns
tOHA Data Hold from Address Change 3 3 ns
tACE CE1 LOW to Data Valid, CE2 HIGH to Data
Valid 12 15 ns
tDOE OE LOW to Data Valid 6 7 ns
tLZOE OE LOW to Low Z 0 0 ns
tHZOE OE HIGH to High Z[6, 7] 67ns
tLZCE CE1 LOW to Low Z, CE2 HIGH to Low Z[7] 33ns
tHZCE CE1 HIGH to High Z, CE2 LOW to High Z[6, 7] 67ns
tPU CE1 LOW to Power-Up, CE2 HIGH to
Power-Up 00ns
tPD CE1 HIGH to Power-Down, CE2 LOW to
Power-Down 12 15 ns
Write Cycle[8]
tWC Write Cycle Time[9] 12 15 ns
tSCE CE1 LOW to Write End, CE2 HIGH to Write End 10 12 ns
tAW Address Set-Up to Write End 10 12 ns
tHA Address Hold from Write End 0 0 ns
tSA Address Set-Up to Write Start 0 0 ns
tPWE WE Pulse Width 10 12 ns
tSD Data Set-Up to Write End 7 8 ns
tHD Data Hold from Write End 0 0 ns
tLZWE WE HIGH to Low Z[7] 33ns
tHZWE WE LOW to High Z[6, 7] 67ns
Notes:
5. Test conditions assume signal transition time of 3 ns or less, timing reference levels of 1.5V, input pulse levels of 0 to 3.0V, and output loading of the specified
IOL/IOH and 30-pF load capacitance.
6. tHZOE, tHZCE, and tHZWE are specified with a load capacitance of 5 pF as in part (b) of AC Test Loads. Transition is measured ±500 mV from st eady-state vo ltage.
7. At any given temperature and voltage condition, tHZCE is less than tLZCE, tHZOE is less than tLZOE, and tHZWE is less than tLZWE for any given device.
8. The internal write time of the memory is defined by the overlap of CE1 LOW, CE2 HIGH, and WE LOW. CE1 and WE must be LOW and CE2 HIGH to initiate a
write, and the transition of any of these signals can terminate the write. The input data set-up and hold timing should be referenced to the leading edge of the
signal that terminat es the write.
9. The minimum write cycle time for Write Cycle No. 3 (WE controlled, OE LOW) is the sum of tHZWE and tSD.
CY7C109B
CY7C1009B
Document #: 38-05038 Rev. *B Page 5 of 11
Switching Characteristics[5] Over the Operating Range (continued)
Parameter Description
7C109B-20
7C1009B-20 7C109B-25
7C1009B-25 7C109B-35
7C1009B-35
UnitMin. Max. Min. Max. Min. Min.
Read Cycle
tRC Read Cycle Time 20 25 35 ns
tAA Address to Data Valid 20 25 35 ns
tOHA Data Hold from Address Change 3 5 5 ns
tACE CE1 LOW to Data Valid, CE2 HIGH to Data
Valid 20 25 35 ns
tDOE OE LOW to Data Valid 8 10 15 ns
tLZOE OE LOW to Low Z 0 0 0 ns
tHZOE OE HIGH to High Z[6, 7] 81015ns
tLZCE CE1 LOW to Low Z, CE2 HIGH to Low Z[7] 355ns
tHZCE CE1 HIGH to High Z, CE2 LOW to High Z[6, 7] 81015ns
tPU CE1 LOW to Power-Up, CE2 HI GH to
Power-Up 000ns
tPD CE1 HIGH to Power-Down, CE2 LOW to
Power-Down 20 25 35 ns
Write Cycle[8]
tWC Write Cycle Time[9] 20 25 35 ns
tSCE CE1 LOW to Write End, CE2 HIGH to Write End 15 20 25 ns
tAW Address Set-Up to Write End 15 20 25 ns
tHA Address Hold from Write End 0 0 0 ns
tSA Address Set-Up to Write Start 0 0 0 ns
tPWE WE Pulse Width 121520ns
tSD Data Set-Up to Write End 10 15 20 ns
tHD Data Hold from Write End 0 0 0 ns
tLZWE WE HIGH to Low Z[7] 355ns
tHZWE WE LOW to High Z[6, 7] 81015ns
Data Retention Characteristics Over the Operating Range (Low Power version only)
Parameter Description Conditions Min. Max Unit
VDR VCC for Data Retention No input may exceed VCC + 0.5V
VCC = VDR = 2.0V,
CE1 > VCC – 0.3V or CE2 < 0.3V,
VIN > VCC – 0.3V or VIN < 0.3V
2.0 V
ICCDR Data Retention Current 150 μA
tCDR Chip Deselect to Data Retention Time 0 ns
tROperation Recovery Time 200 μs
Data Retention Waveform
4.5V4.5V
CE
VCC
tCDR
VDR
>
2V
DATA RETENTION MODE
tR
CY7C109B
CY7C1009B
Document #: 38-05038 Rev. *B Page 6 of 11
Switching Waveforms
Read Cycle No. 1[10, 11]
Read Cycle No. 2 (OE Controlled)[11, 12]
Write Cycle No. 1 (CE1 or CE2 Controlled)[13, 14]
Notes:
10.Device is continuously selected. OE, CE1 = VIL, CE2 = VIH.
11. WE is HIGH for read cycle.
12.Address valid prior to or coincident with CE1 transition LOW and CE2 t ransition HIGH.
PREVIOUS DATA VALID DATA VALID
tRC
tAA
tOHA
ADDRESS
DATA OUT
50%
50%
DATA VALID
tRC
tACE
tDOE
tLZOE
tLZCE
tPU
HIGH IMPEDANCE
tHZOE tHZCE
tPD
HIGH
OE
CE1
ICC
ISB
IMPEDANCE
ADDRESS
CE2
DATA OUT
VCC
SUPPLY
CURRENT
tWC
DATA VALID
tAW
tSA
tPWE
tHA
tHD
tSD
tSCE
tSCE
CE1
ADDRESS
CE2
WE
DATA I/O
CY7C109B
CY7C1009B
Document #: 38-05038 Rev. *B Page 7 of 11
Write Cycle No. 2 (WE Controlled, OE HIGH During Write)[13, 14]
Write Cycle No. 3 (WE Controlled, OE LOW)[14]
Notes:
13.Data I/O is high impedance if OE = VIH.
14.If CE1 goes HIGH or CE2 goes LOW simultaneously with WE going HIGH, the output remains in a high-impedance state.
15.During this period the I/Os are in the output state and input signals should not be applied.
Switching Waveforms (continued)
tHD
tSD
tPWE
tSA
tHA
tAW
tSCE
tSCE
tWC
tHZOE
DATAIN VALID
CE1
ADDRESS
CE2
WE
DATA I/O
OE
NOTE 15
DATA VALID
tHD
tSD
tLZWE
tPWE
tSA
tHA
tAW
tSCE
tSCE
tWC
tHZWE
CE1
ADDRESS
CE2
WE
DATA I/O NOTE 15
CY7C109B
CY7C1009B
Document #: 38-05038 Rev. *B Page 8 of 11
Truth Table
CE1CE2OE WE I/O0–I/O7Mode Power
H X X X High Z Power-Down Standby (ISB)
X L X X High Z Power-Down Standby (ISB)
L H L H Data Out Read Active (ICC)
L H X L Data In Write Active (ICC)
L H H H High Z Selected, Outputs Disabled Active (ICC)
Ordering Information
Speed
(ns) Ordering Code Package
Name Package Type Operating
Range
12 CY7C109B-12VC V33 32-Lead (400-Mil) Molded SOJ Commercial
CY7C1009B-12VC V32 32-Lead (300-Mil) Molded SOJ
CY7C109B-12ZC Z32 32-Lead TSOP Type I
CY7C109B-12ZXC Z32 32-Lead TSOP Type I (Pb-Free)
15 CY7C109BL-15VC V33 32-Lead (400-Mil) Molded SOJ Commerci al
CY7C109B-15VC V32 32-Lead (400-Mil) Molded SOJ
CY7C1009B-15VC V32 32-Lead (300-Mil) Molded SOJ
CY7C109B-15ZC Z32 32-Lead TSOP Type I
CY7C109B-15ZXC Z32 32-Lead TSOP Type I (Pb-Free)
CY7C109BL-15VI V33 32-Lead (400-Mil) Molded SOJ Industrial
CY7C109B-15VI V33 32-Lead (400-Mil) Molded SOJ
CY7C1009B-15VI V32 32-Lead (300-Mil) Molded SOJ
20 CY7C109B-20VC V33 32-Lead (400-Mil) Molded SOJ Commercial
CY7C1009B-20VC V32 32-Lead (300-Mil) Molded SOJ
CY7C109B-20VI V33 32-Lead (400-Mil) Molded SOJ Industrial
CY7C109B-20ZC Z32 32-Lead TSOP Type I Commercial
CY7C109B-20ZXC Z32 32-Lead TSOP Type I (Pb-Free )
25 CY7C109B-25VC V33 32-Lead (400-Mil) Molded SOJ Commercial
CY7C1009B-25VC V32 32-Lead (300-Mil) Molded SOJ
CY7C109B-25VI V33 32-Lead (400-Mil) Molded SOJ Industrial
CY7C109B-25ZC Z32 32-Lead TSOP Type I Commercial
CY7C109B-25ZI Z32 32-Lead TSOP Type I Industrial
35 CY7C109B-35VC V33 32-Lead (400-Mil) Molded SOJ Commercial
CY7C1009B-35VC V32 32-Lead (300-Mil) Molded SOJ
CY7C109B-35VI V33 32-Lead (400-Mil) Molded SOJ Industrial
Please contact loc al sales representative regarding availability of parts
CY7C109B
CY7C1009B
Document #: 38-05038 Rev. *B Page 9 of 11
Package Diagrams
32-Lead (300-Mil) Molded SOJ V32
51-85041-*A
32-Lead (400-Mil) Molded SOJ V33
51-85033-*B
CY7C109B
CY7C1009B
Document #: 38-05038 Rev. *B Page 10 of 11
© Cypress Semi con duct or Cor po rati on , 20 05 . The information contained he re i n is su bject to change without notice. Cy press Semiconductor Corporation assumes no responsibility for the u se
of any circuitry other than circuitry embodied in a Cypress product. Nor does it convey or imply any license under patent or other rights. Cypress products are not warranted nor intended to be
used for medical, life support, life saving, critical control or safety applications, unless pursuant to an express written agreement with Cypress. F urthermore, Cyp ress does not a uthorize its
products for use as critical components in life-support systems where a malfunction or failure may reasonably be expected to result in significant inju ry to the user. The inclusion of Cypress
products in life-support systems application implies that the manufacturer assumes all risk of such use and in doing so indemnifies Cypress against all charges.
All product and company names mentioned in this document may be the trademarks of their respective holders.
Package Diagrams (continued)
51-85056-*D
32-Lead Thin Small Outline Package Type I (8x20 mm) Z32
CY7C109B
CY7C1009B
Document #: 38-05038 Rev. *B Page 11 of 11
Document History Page
Document Title: CY7C109B, CY7C1009 128K x 8 SRAM
Document Number: 38-05038
REV. ECN NO. Issue
Date Orig. of
Change Description of Change
** 106832 09/22/01 SZV Change from Spec number: 38-00971 to 38-05038
*A 116467 09/16/02 CEA Add applications foot note to data sheet, page 1
*B 397875 See ECN NXR Changed address of Cypress Semiconductor Corporation on Page# 1 from
“3901 North First Street” to “198 Champion Court”
Updated the Ordering Information Table on page 8.