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AS1100
Seriall y In terfaced, 8 -D igit LED D r iver
www.austriamicrosystems.com/LED-Driver-ICs/AS1100 Revision 1.37 1 - 16
Datasheet
1 General Description
The AS1100 is an LED driver for 7 segment numeric displays of up to
8 digits. The AS1100 can be programmed via a conventional 4 wire
serial interface.
The device includes a BCD code-B decoder, a multiplex scan
circuitry, segment and display drivers, and a 64 Bit memory. The
memory is used to store the LED settings, so that continuous
reprogramming is not necessary.
Every individual segment can be addressed and updated separately.
Only one external resistor is required to set the current through the
LED display. Brightness can be controlled either in an analog or
digital way. The user can choose the internal code-B decoder to
display numeric digits or to address each segment directly.
The AS1100 features an extremely low shutdown current of only
20µA and an operational current of less than 500µA. The number of
visible digits can be programmed as well. The AS1100 can be reset
by software and an external clock can be used. Several test modes
support easy debugging.
The AS1100 is offered in a 24-pin SOIC package.
2 Key Features
10MHz Serial Interface
Individual LED Segment Control
Decode/No-Decode Digit Selection
20µA Low-Power Shutdown (Data Retained)
Extremely low Operating Current 0.5mA in open loop
Digital and Analog Brightness Control
Display Blanked on Power-Up
Drive Common-Cathode LED Display
Software Reset
Optional External clock
24-pin SOIC Package
3 Applications
The AS1100 is an ideal solution for Bar-Graph Displays, Industrial
Controllers, Panel Meters, LED Matrix Displays and White Goods
such as washing machines and dishwasher.
Figure 1. AS1100 - Typical Application Diagram
8 Digits
8 Segments
GND
GND
CLK
LOAD
DIN
ISET
VDD
DIFG0-DIG3
SEG A-G
SEP DP
MOSI
µP I/O
SCK
+5V
8-Digit µP Display
9.53k
19
18
1
12
1
9
4
AS1100
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AS1100
Datasheet - P i n A s s ig n me nt s
4 Pin Assignments
Figure 2. Pin Assignments (Top View)
4.1 Pin Descriptions
Table 1. Pin Descriptions
Pin Number Pin Name Description
1DIN Data input. Data is programmed into the 16Bit shift register on the rising CLK edge
2, 3, 5:8, 10, 11 DIG 0 : DIG 7 8 digit driver lines that sink the current from the common cathode of the display. In shutdown
mode the AS1100 switches the outputs to VDD.
4, 9 GND Both GND pins must be connected.
12 LOAD/CS Strobe input. With the rising edge of the LOAD signal the 16 bit of serial data is latched into
the register.
13 CLK
Clock input. The interface is capable to support clock frequencies up to 10MHz. The serial
data is clocked into the internal shift register with the rising edge of the CLK signal. On the
DOUT pin the data is applied with the falling edge of CLK.
14:17, 20:23 SEGA:G, DP Seven segment driver lines including the decimal point. When a segment is turned off the
output is connected to GND.
18 ISET The current into ISET determines the peak current through the segments and therefore the
brightness.
19 VDD Positive Supply Voltage (+5V)
24 DOUT Serial data output for cascading drivers. The output is valid after 16.5 clock cycles. The
output is never set to high impedance.
11
12 13
14
15
16
17
18
19
20
21
22
23
DIG4
AS1100
10
1
2
3
4
5
6
7
8
9
24 DOUT
DIN
DIG0
GND
DIG6
DIG2
GND
DIG3
LOAD
SEG D
SEG DP
SEG E
SEG C
VDD
ISET
SEG G
SEG B
SEG F
SEG A
CLK
DIG7
DIG5
DIG1
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AS1100
Datasheet - A b s o l u t e M a x i m u m R a t in g s
5 Absolute Maximum Ratings
Stresses beyond those listed in Table 2 may cause permanent damage to the device. These are stress ratings only, and functional operation of
the device at these or any other conditions beyond those indicated in Electrical Characteristics on page 4 is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect device reliability.
Table 2. Absolute Maximum Ratings
Parameter Min Max Units Notes
Electrical Parameters
VDD to GND -0.3 7 V
All other pins to GND -0.3 VDD + 0.3
(max 7V) V
Current
DIG 0:DIG 7 Sink Current 500 mA
SEG A : SEG G, SEG DP 100 mA
Latch-Up Immunity ±200 mA Norm: JEDEC 78
Electrostatic Discharge
Digital outputs 500 V Norm: MIL 883 E method 3015
All other pins 1000 V
Continuous Power Dissipation (TA = +85°C)
Wide SOIC 941 mW Derate 11.8mW/ºC
above +70ºC
Temperature Ranges and Storage Conditions
Storage Temperature Range -55 +150 ºC
Package Body Temperature (Wide SOIC) +260 ºC
The reflow peak soldering temperature (body
temperature) specified is in accordance with IPC/
JEDEC J-STD-020 “Moisture/Reflow Sensitivity
Classification for Non-Hermetic Solid State Surface
Mount Devices”.
The lead finish for Pb-free leaded packages is
matte tin (100% Sn).
Humidity 5 85 % Non-condensing
Moisture Sensitive Level 3 Represents a max. floor life time of 168h
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AS1100
Datasheet - E l e c t r i ca l C h a r a c te r i s t i c s
6 Electrical Characteristics
VDD = 5V, RSET = 9.53kΩ±1%, T
A
= TMIN to TMAX (unless otherwise specified). All limits are guaranteed. The parameters with min and max
values are guaranteed with production tests or SQC (Statistical Quality Control) methods.
Table 3. Electrical Characteristics
Symbol Parameter Conditions Min Typ Max Units
TAMB Operating Temperature Range -40 +85 ºC
VDD Operating Supply Voltage 4.0 5.0 5.5 V
IDDSD Shutdown Supply Current All digital inputs at VDD or GND,
TA = +25ºC 20 50 µA
IDD Operating Supply Current
RSET = open circuit 500 µA
All segments and decimal point on,
I
SEG
= -40mA 330 mA
fOSC Display Scan Rate 8 digits scanned 500 800 1300 Hz
IDIGIT Digit Drive Sink Current VOUT = 0.65V 320 mA
I
SEG
Segment Drive Source Current T
A
= +25ºC, VOUT = (VDD -1V) -30 -40 -45 mA
∆I
SEG
Segment Drive Current Matching 3.0 %
IDIGIT Digit Drive Source Current Digit off, VDIGIT = (VDD -0.3V) -2 mA
I
SEG
Segment Drive Sink Current Segment off, VSEG = 0.3V 5 mA
Logic Inputs
I
IH
, I
IL
Input Current DIN, CLK, LOAD VIN = 0V or VDD -1 1 µA
V
IH
Logic High Input Voltage 3.5 V
V
IL
Logic Low Input Voltage 0.8 V
V
OH
Output High Voltage DOUT, ISOURCE = -1mA VDD - 1 V
V
OL
Output Low Voltage DOUT, ISINK = 1.6mA 0.4 V
Hysteresis Voltage DIN, CLK, LOAD 1 V
Timing Characteristics
t
CP
CLK Clock Period 100 ns
t
CH
CLK Pulse Width High 50 ns
t
CL
CLK Pulse Width Low 50 ns
t
CSH
CLK Rise to LOAD Rise Hold Time 0 ns
t
DS
DIN Setup Time 25 ns
t
DH
DIN Hold Time 0 ns
t
DO
Output Data Propagation Delay C
LOAD
= 50pF 25 ns
t
LDCK
LOAD Rising Edge to Next Clock
Rising Edge 50 ns
t
CSW
Minimum LOAD Pulse High 50 ns
t
DSPD
Data-to-Segment Delay 2.25 ms
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AS1100
Datasheet - Ty p i c a l O p er a t i n g C h a r a c t e r is ti c s
7 Typical Operating Characteristics
Figure 3. Segment Driver Capability, Figure 4. Segment Current vs. RSET
VDD = 5V, Logic Level = High
0
5
10
15
20
25
30
35
40
45
50
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5
Voltage below VDD at output (V)
Segment Current (mA)
.
0
5
10
15
20
25
30
35
40
45
50
10 100
RSET (kOhm)
ISEGMENT (mA).
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AS1100
Datasheet - D e ta i l e d D e s cr i pt io n
8 Detailed Description
8.1 Serial-Addressing Modes
Programming of the AS1100 is done via 4 wire serial interface. A programming sequence consists of 16-bit packages. The data is shifted into the
internal 16 Bit register with the rising edge of the CLK signal. With the rising edge of the LOAD signal the data is latched into a digital or control
register depending on the address. The LOAD signal must go to high after the 16th rising clock edge. The LOAD signal can also come later but
just before the next rising edge of CLK, otherwise data would be lost. The content of the internal shift register is applied 16.5 clock cycles later to
the DOUT pin. The data is clocked out at the falling edge of CLK. The Bits of the 16Bit-programming package are described in Table 5. The first
4 Bits D15-D12 are don’t care, D11-D8 contain the address and D7-D0 contain the data. The first bit is D15, the most significant bit (MSB). The
exact timing is given in Figure 5.
Figure 5. Timing Diagram
8.2 Digit and Control Registers
The AS1100 incorporates 15 registers, which are listed in Table 5. The digit and control registers are selected via the 4Bit address word. The 8
digit registers are realized with a 64bit memory. Each digit can be controlled directly without rewriting the whole contents. The control registers
consist of decode mode, display intensity, number of scanned digits, shutdown, display test, and reset/external clock register.
8.3 Shutdown Mode
The AS1100 features a shutdown mode, where it consumes only 20µA current. The shutdown mode is entered via a write to register 0Ch. Then
all segment current sources are pulled to ground and all digit drivers are connected to VDD, so that nothing is displayed. All internal digit
registers keep the programmed values. The shutdown mode can either be used for power saving or for generating a flashing display by
repeatedly entering and leaving the shutdown mode. The AS1100 needs typically 250µs to exit the shutdown mode. During shutdown the
AS1100 is fully programmable. Only the display test function overrides the shutdown mode.
8.4 Initial Power-Up
After powering up the system all register are reset, so that the display is blank. The AS1100 starts the shutdown mode. All registers should be
programmed for normal operation. The default settings enable only scan of one digit, the internal decoder is disabled, data register and intensity
register are set to the minimum value.
Table 4. Serial Data Format (16bits)
D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
X X X X Address MSB Data LSB
D0
D1
D15 D14
DOUT
DIN
CLK
LOAD t
CSW
t
CL
t
CH
t
CP
t
CS
t
LDCK
t
DO
t
DS
t
DH
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AS1100
Datasheet - D e ta i l e d D e s cr i pt io n
8.5 Decode-Mode Register
In the AS1100 a BCD decoder is included. Every digit can be selected via register 09h to be decoded. The BCD code consists of the numbers 0-
9, E,H, L,P and -. In register 09h a logic high enables the decoder for the appropriate digit. In case that the decoder is bypassed (logic low) the
data Bits D7-D0 correspond to the segment lines of the AS1100. In Table 7 some possible settings for register 09h are shown. Bit D7, which
corresponds to the decimal point, is not affected by the settings of the decoder. Logic high means that the decimal point is displayed. In Table 8
the font of the Code B decoder is shown. In Table 9 the correspondence of the register to the appropriate segments of a 7 segment display is
shown (see Figure 6).
8.6 Intensity Control and Interdigit Blanking
Brightness of the display can be controlled in an analog way by changing the external resistor (RSET). The current, which flows between VDD
and ISET, defines the current that flows through the LEDs. The LED current is 100 times the ISET current. The minimum value of RSET should
be 9.53kΩ, which corresponds to 40mA segment current. The brightness of the display can also be controlled digitally via register 0Ah. The
brightness can be programmed in 16 steps and is shown in Table 10. An internal pulse width modulator controls the intensity of the display.
8.7 Scan-Limit Register
The scan limit register 0Bh selects the number of digits displayed. When all 8 digits are displayed the update frequency is typically 800Hz. If the
number of digits displayed is reduced, the update frequency is reduced as well. The frequency can be calculated using 8fOSC/N, where N is the
number of digits. Since the number of displayed digits influences the brightness, the resistor RSET should be adjusted accordingly. The Table 12
shows the maximum allowed current, when fewer than 4 digits are used. To avoid differences in brightness the scan limit register should not be
used to blank portions of the display (leading zeros).
Table 5. Register Address Map
Register Address Hex
Code
D15-D12 D11 D10 D9 D8
No-Op X 0 0 0 0 0xX0
Digit 0 X 0 0 0 1 0xX1
Digit 1 X 0 0 1 0 0xX2
Digit 2 X 0 0 1 1 0xX3
Digit 3 X 0 1 0 0 0xX4
Digit 4 X 0 1 0 1 0xX5
Digit 5 X 0 1 1 0 0xX6
Digit 6 X 0 1 1 1 0xX7
Digit 7 X 1 0 0 0 0xX8
Decode Mode X 1 0 0 1 0xX9
Intensity X 1 0 1 0 0xXA
Scan Limit X 1 0 1 1 0xXB
Shutdown X 1 1 0 0 0xXC
Not used X 1 1 0 1 0xXD
Reset and ext. Clock X 1 1 1 0 0xXE
Display Test X 1 1 1 1 0xXF
Table 6. Shutdown Register Format (address (hex) = 0xXC
Mode Address Code
(Hex)
Register Data
D7 D6 D5 D4 D3 D2 D1 D0
Shutdown Mode 0xXC X X X X X X X 0
Normal Operation 0xXC X X X X X X X 1
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AS1100
Datasheet - D e ta i l e d D e s cr i pt io n
Note: The decimal point is set by bit D7 = 1
Table 7. Decode-mode Register Examples (address (hex) = 0xX9
Decode Mode Register Data Hex Code
D7 D6 D5 D4 D3 D2 D1 D0
No decode for digits 7–0 0 0 0 0 0 0 0 0 0x00
Code B decode for digit 0
No decode for digits 7–1 00000001 0x01
Code B decode for digits 3–0
No decode for digits 7– 4 00001111 0x0F
Code B decode for digits 7–0 1 1 1 1 1 1 1 1 0xFF
Table 8. Code B font
7-Segment
Character
Register Data On Segments = 1
D7* D6-D4 D3 D2 D1 D0 DP* A B C D E F G
0 X 0 0 0 0 1 1 1 1 1 1 0
1 X 0 0 0 1 0 1 1 0 0 0 0
2 X 0 0 1 0 1 1 0 1 1 0 1
3 X 0 0 1 1 1 1 1 1 0 0 1
4 X 0 1 0 0 0 1 1 0 0 1 1
5 X 0 1 0 1 1 0 1 1 0 1 1
6 X 0 1 1 0 1 0 1 1 1 1 1
7 X 0 1 1 1 1 1 1 0 0 0 0
8 X 1 0 0 0 1 1 1 1 1 1 1
9 X 1 0 0 1 1 1 1 1 0 1 1
-- X 1 0 1 0 0 0 0 0 0 0 1
E X 1 0 1 1 1 0 0 1 1 1 1
H X 1 1 0 0 0 1 1 0 1 1 1
L X 1 1 0 1 0 0 0 1 1 1 0
P X 1 1 1 0 1 1 0 0 1 1 1
blank X 1 1 1 1 0 0 0 0 0 0 0
Table 9. No-decode Mode Data Bits and Corresponding Segment Lines
Register Data
D7 D6 D5 D4 D3 D2 D1 D0
Corresponding Segment Line DP A B C D E F G
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AS1100
Datasheet - D e ta i l e d D e s cr i pt io n
Figure 6. Standard 7-segment LED
Table 10. Intensity Register Format (address (hex) = 0xXA)
Duty Cycle D7 D6 D5 D4 D3 D2 D1 D0 Hex Code
1/32 (min on) X X X X 0 0 0 0 0xX0
3/32 X X X X 0 0 0 1 0xX1
5/32 X X X X 0 0 1 0 0xX2
7/32 X X X X 0 0 1 1 0xX3
9/32 X X X X 0 1 0 0 0xX4
11/32 X X X X 0 1 0 1 0xX5
13/32 X X X X 0 1 1 0 0xX6
15/32 X X X X 0 1 1 1 0xX7
17/32 X X X X 1 0 0 0 0xX8
19/32 X X X X 1 0 0 1 0xX9
21/32 X X X X 1 0 1 0 0xXA
23/32 X X X X 1 0 1 1 0xXB
25/32 X X X X 1 1 0 0 0xXC
27/32 X X X X 1 1 0 1 0xXD
29/32 X X X X 1 1 1 0 0xXE
31/32 (max on) X X X X 1 1 1 1 0xXF
Table 11. Scan-limit Register Format (address (hex) = 0xXB)
Decode Mode Register Data Hex Code
D7 D6 D5 D4 D3 D2 D1 D0
Display digit 0 only X X X X X 0 0 0 0xX0
Display digit 0 & 1 X X X X X 0 0 1 0xX1
Display digit 0 1 2 X X X X X 0 1 0 0xX2
Display digit 0 1 2 3 X X X X X 0 1 1 0xX3
Display digit 0 1 2 3 4 X X X X X 1 0 0 0xX4
Display digit 0 1 2 3 4 5 X X X X X 1 0 1 0xX5
Display digit 0 1 2 3 4 5 6 X X X X X 1 1 0 0xX6
Display digit 0 1 2 3 4 5 6 7 X X X X X 1 1 1 0xX7
A
B
C
D
E
F
G
DP
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AS1100
Datasheet - D e ta i l e d D e s cr i pt io n
8.8 Display Test Register
With the display test register 0Fh all LED can be tested. In the test mode all LEDs are switched on at maximum brightness (duty cycle 31/32). All
programming of digit and control registers are maintained. The format of the register is given in Table 13.
Note: The AS1100 remains in display-test mode until the display-test register is reconfigured for normal operation.
8.9 No-Op Register (Cascading of AS1100)
The no-operation register 00h is used when AS1100s are cascaded in order to support more than 8 digit displays. The cascading must be done
in a way that all DOUT are connected to DINof the following AS1100. The LOAD and CLK signals are connected to all devices. For a write
operation for example to the fifth device the command must be followed by four no-operation commands. When the LOAD signal finally goes to
high all shift registers are latched. The first four devices have got no-operation commands and only the fifth device sees the intended command
and updates its register.
8.10 Reset and External Clock Register
This register is addressed via the serial interface. It allows to switch the device to external clock mode (If D0=1 the CLK pin of the serial interface
operates as system clock input.) and to apply an external reset (D1). This brings all registers (except reg. E) to default state. For standard
operation the register contents should be "00h".
Table 12. Maximum Segment Current for 1-, 2-, or 3-digit Displays
Number of digits Displayed Maximum Segment Current (mA)
1 10
2 20
3 30
Table 13. Display-test Register Format (address (hex) = 0xXF)
Mode Register Data
D7 D6 D5 D4 D3 D2 D1 D0
Normal Operation X X X X X X X 0
Display Test Mode X X X X X X X 1
Table 14. Reset and External Clock Register (address (hex) = oxXE)
Mode Address Register Data
code (Hex) D7 D6 D5 D4 D3 D2 D1 D0
Normal Operation,
internal clock 0xXE X X X X X X 0 0
Normal Operation,
external clock 0xXE X X X X X X 0 1
Reset state,
internal clock 0xXE X X X X X X 1 0
Reset state,
external clock 0xXE X X X X X X 1 1
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AS1100
Datasheet - A p p l i c a t i o n In f o r m a t i o n
9 Application Information
9.1 Supply Bypassing and Wiring
In order to achieve optimal performance the AS1100 shall be placed very close to the LED display to minimize effects of electromagnetic
interference and wiring inductance. Furthermore, it is recommended to connect a 10µF electrolytic and a 0.1µF ceramic capacitor between VDD
and GND to avoid power supply ripple. Also, both GNDs must be connected to ground.
9.2 Selecting RSET Resistor and Using External Drivers
The current through the segments is controlled via the external resistor RSET. Segment current is about 100 times the current in ISET. The right
values for ISET are given in Table 15. The maximum current the AS1100 can drive is 40mA. If higher currents are needed, external drivers must
be used. In that case it is no longer necessary that the AS1100 drives high currents. A recommended value for RSET is 47kΩ. In cases that the
AS1100 only drives few digits, Table 12 specifies the maximum currents and RSET must be set accordingly. Refer to absolute maximum ratings
to calculate acceptable limits for ambient temperature, segment current, and the LED forward-voltage drop.
9.3 8x8 LED Dot Matrix Driver
The example in Figure 7 uses the AS1100 to drive an 8x8 LED dot matrix. The LED columns have common cathode and are connected to the
DIG0-7 outputs. The rows are connected to the segment drivers. Each of the 64 LEDs can be addressed separately. The columns are selected
via the digits as shown in Table 5. The decode mode register (0xX9) has to be programmed to ‘00000000’ as stated in Table 4. The single LEDs
in a column can be addressed as stated in Table 9, where D0 corresponds to segment G and D7 corresponds to segment DP.
Note: For a multiple-digit dot matrix, multiple AS1100 devices must be cascaded.
Figure 7. Application Example as LED Dot Matrix Driver
Table 15. RSET vs. Segment Current and LED Forward Voltage
ISEG (mA) VLED(V)
1.5 2.0 2.5 3.0 3.5
40 12.2kΩ11.8kΩ11.0kΩ10.6kΩ9.69kΩ
30 17.8kΩ17.1kΩ15.8kΩ15.0kΩ14.0kΩ
20 29.8kΩ28.0kΩ25.9kΩ24.5kΩ22.6kΩ
10 66.7kΩ63.7kΩ59.3kΩ55.4kΩ51.2kΩ
SEG G
SEG F
SEG E
SEG D
SEG C
SEG B
SEG A
SEG DP
DIG 0 DIG 7
1
12
13
9
24
19
18
9.53kΩ
4
SEG A:G
SEG DP DIG0:7
DIN
LOAD
CLK
GND
GND
VDD
ISET
SEG G
SEG F
SEG E
SEG D
SEG C
SEG B
SEG A
SEG DP
DIG 0 DIG 7
1
12
13
9
19
18
9.53kΩ
4
DIN
LOAD
CLK
GND
GND
VDD
ISET
µP
AS1100
AS1100
DOUT SEG A:G
SEG DP DIG0:7
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AS1100
Datasheet - A p p l i c a t i o n In f o r m a t i o n
9.4 Calculating the Power Dissipation
The upper limit for power dissipation (PD) for the AS1100 is determined from the following equation:
PD = (VDD x 0.5mA) + (VDD - VLED)(DUTY x ISEG x N) (EQ 1)
Where:
VDD = supply voltage
DUTY = duty cycle set by intensity register
N = number of segments driven (worst case is 8)
VLED = LED forward voltage
ISEG = segment current set by RSET
Dissipation Example:
ISEG = 40mA, N = 8, DUTY = 31/32, VLED = 1.8V at 40mA, VDD = 5.25V
PD = 5.25V(0.5mA) + (5.25V - 1.8V)(31/32 x 40mA x 8) = 1.07W
Thus, for a PDIP package θ
JA
= +75°C/W (from Table 13), the maximum allowed ambient temperature T
A
is given by:
T
J,MAX
= T
A
+ PD x θ
JA
= 150°C = T
A
+1.07W x 75°C/W.
Where:
T
A
= +69.7°C.
The T
A
limit for SO Packages in the dissipation example above is +59.0°C.
Table 16. Package Thermal Resistance Data
Package Thermal Resistance (θ
JA
)
24 Wide SO +85ºC/w
Maximum Junction Temperature (T
J
) = +150ºC
Maximum Ambient Temperature (T
A
) = +85ºC
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AS1100
Datasheet - P a c k a ge D r a w i n g s a n d M a r k i n g s
10 Package Drawings and Markings
Figure 8. AS1100 Marking
Table 17. Packaging Code YYWWQZZ
YY WW Q ZZ
last two digits of the current year manufacturing week plant identifier free choice / traceability code
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AS1100
Datasheet - P a c k a ge D r a w i n g s a n d M a r k i n g s
Figure 9. SOIC 24-pin Package Diagram
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AS1100
Datasheet - O r d e r i n g I n f o r m a t i o n
11 Ordering Information
The device is available as the standard products shown in Table 18.
Note: All products are RoHS compliant and austriamicrosystems green.
Buy our products or get free samples online at ICdirect: http://www.austriamicrosystems.com/ICdirect
Technical Support is found at http://www.austriamicrosystems.com/Technical-Support
For further information and requests, please contact us mailto:sales@austriamicrosystems.com
or find your local distributor at http://www.austriamicrosystems.com/distributor
Table 18. Ordering Information
Ordering Code Marking Description Temp Range Delivery Form Package
AS1100WL AS1100WL Serially Interfaced, 8-Digit LED Driver 0ºC to +70ºC Tubes SOIC 24-pin
AS1100WE AS1100WE Serially Interfaced, 8-Digit LED Driver -40ºC to +85ºC Tubes SOIC 24-pin
AS1100WL-T AS1100WL Serially Interfaced, 8-Digit LED Driver 0ºC to +70ºC Tape & Reel SOIC 24-pin
AS1100WE-T AS1100WE Serially Interfaced, 8-Digit LED Driver -40ºC to +85ºC Tape & Reel SOIC 24-pin
ams AG
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www.austriamicrosystems.com/LED-Driver-ICs/AS1100 Revision 1.37 16 - 16
AS1100
Datasheet
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austriamicrosystems AG makes no warranty, express, statutory, implied, or by description regarding the information set forth herein or regarding
the freedom of the described devices from patent infringement. austriamicrosystems AG reserves the right to change specifications and prices at
any time and without notice. Therefore, prior to designing this product into a system, it is necessary to check with austriamicrosystems AG for
current information. This product is intended for use in normal commercial applications. Applications requiring extended temperature range,
unusual environmental requirements, or high reliability applications, such as military, medical life-support or life-sustaining equipment are
specifically not recommended without additional processing by austriamicrosystems AG for each application. For shipments of less than 100
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