AS1100WL austriamicrosystems, AS1100WL Datasheet

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AS1100WL

Manufacturer Part Number
AS1100WL
Description
IC DRIVER LED 8-DIGIT 24-SOIC
Manufacturer
austriamicrosystems
Datasheet

Specifications of AS1100WL

Display Type
LED
Configuration
7 Segment + DP
Interface
Serial
Digits Or Characters
8 Digits
Current - Supply
330mA
Voltage - Supply
4 V ~ 5.5 V
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
24-SOIC (0.300", 7.50mm Width)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
D a ta sheet
A S 110 0
S e r i a l l y I n t e r f a c e d , 8 - D i g i t L E D D r i v e r
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.
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 DIP and SOIC packages.
www.austriamicrosystems.com/LED-Driver-ICs/AS1100
Figure 1. AS1100 - Typical Application Diagram
The AS1100 features an extremely low shutdown current of only
9.53k
µP I/O
MOSI
SCK
18
12
1
9
1
LOAD
CLK
DIN
ISET
GND
Revision 1.36
GND
VDD
DIFG0-DIG3
AS1100
SEG A-G
+5V
4
19
SEP DP
2 Key Features
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.
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 DIP and SOIC Packages
8-Digit µP Display
8 Digits
8 Segments
1 - 17

Related parts for AS1100WL

AS1100WL Summary of contents

Page 1

... 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 DIP and SOIC packages. Figure 1. AS1100 - Typical Application Diagram www.austriamicrosystems.com/LED-Driver-ICs/AS1100 2 Key Features 10MHz Serial Interface Individual LED Segment Control Decode/No-Decode Digit Selection 20µ ...

Page 2

... Figure 2. Pin Assignments (Top View) 4.1 Pin Descriptions Table 1. Pin Descriptions Pin Number Pin Name 1 DIN 2, 3, 5:8, 10, 11 DIG 0 : DIG GND 12 LOAD/CS 13 CLK 14:17, 20:23 SEGA: ISET 19 VDD 24 DOUT www.austriamicrosystems.com/LED-Driver-ICs/AS1100 1 DIN 24 DOUT 2 DIG0 23 SEG D SEG DIG4 4 21 SEG E GND SEG C DIG6 5 20 AS1100 DIG2 ...

Page 3

... Continuous Power Dissipation (TA = +85°C) Narrow Plastic DIP Wide SO Temperature Ranges and Storage Conditions Storage Temperature Range Package Body Temperature 1 Humidity non-condensing 1 Moisture Sensitive Level 1. only valid for the SOIC 24-pin package www.austriamicrosystems.com/LED-Driver-ICs/AS1100 Electrical Characteristics on page 4 Min Max Units - ...

Page 4

... Minimum LOAD Pulse High CSW t Data-to-Segment Delay DSPD Note: All limits are guaranteed. The parameters with min and max values are guaranteed with production tests or SQC (Statistical Quality Control) methods. www.austriamicrosystems.com/LED-Driver-ICs/AS1100 , unlesss otherwise noted. MAX Conditions All digital inputs GND +25ºC ...

Page 5

... AS1100 Datasheet - Typical Operating Characteristics Figure 3. Segment Driver Capability 5V, Logic Level = High 0.5 1 1.5 2 2.5 3 Voltage below VDD at output (V) www.austriamicrosystems.com/LED-Driver-ICs/AS1100 Figure 4. Segment Current vs 3.5 4 4.5 10 Revision 1.36 SET 100 RSET (kOhm ...

Page 6

... 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. www.austriamicrosystems.com/LED-Driver-ICs/AS1100 t t ...

Page 7

... Mode (Hex) Shutdown Mode 0xXC Normal Operation 0xXC www.austriamicrosystems.com/LED-Driver-ICs/AS1100 Table 7 some possible settings for register 09h are shown. Bit D7, which the correspondence of the register to the appropriate segments segment display is SET Table 10. An internal pulse width modulator controls the intensity of the display. ...

Page 8

... Code B decode for digits 3– decode for digits 7– 4 Code B decode for digits 7–0 1 Table 8. Code B font Register Data 7-Segment Character D7* D6- blank X Note: The decimal point is set by bit Table 9. No-decode Mode Data Bits and Corresponding Segment Lines Corresponding Segment Line www.austriamicrosystems.com/LED-Driver-ICs/AS1100 Register Data DP ...

Page 9

... X 13/32 X 15/32 X 17/32 X 19/32 X 21/32 X 23/32 X 25/32 X 27/32 X 29/32 X 31/32 (max on) X Table 11. Scan-limit Register Format (address (hex) = 0xXB) Decode Mode D7 Display digit 0 only X Display digit 0 & Display digit Display digit Display digit Display digit Display digit Display digit www.austriamicrosystems.com/LED-Driver-ICs/AS1100 ...

Page 10

... Table 14. Reset and External Clock Register (address (hex) = oxXE) Address Mode code (Hex) Normal Operation, 0xXE internal clock Normal Operation, 0xXE external clock Reset state, 0xXE internal clock Reset state, 0xXE external clock www.austriamicrosystems.com/LED-Driver-ICs/AS1100 Table Maximum Segment Current (mA) Register Data Register Data ...

Page 11

... SEG DP 1 DIN AS1100 12 µP LOAD 13 CLK 9 GND GND 4 www.austriamicrosystems.com/LED-Driver-ICs/AS1100 . Segment current is about 100 times the current in ISET. The right SET must be set accordingly. Refer to absolute maximum ratings SET V LED 1.5 2.0 2.5 12.2kΩ 11.8kΩ 11.0kΩ 17.8kΩ ...

Page 12

... J,MAX Where +69.7°C. A The T limit for SO Packages in the dissipation example above is +59.0°C. A Table 16. Package Thermal Resistance Data Package 24 Narrow DIP 24 Wide SO www.austriamicrosystems.com/LED-Driver-ICs/AS1100 x 0.5mA )(DUTY LED SEG = 5.25V DD Thermal Resistance (θ Maximum Junction Temperature ( +150ºC J Maximum Ambient Temperature ( +85º ...

Page 13

... AS1100 Datasheet - Package Drawings and Markings Figure 8. AS1100 Marking Table 17. Packaging Code YYWWQZZ YY last two digits of the current year www.austriamicrosystems.com/LED-Driver-ICs/AS1100 manufacturing week plant identifier Revision 1.36 ZZ free choice / traceability code ...

Page 14

... AS1100 Datasheet - Figure 9. SOIC 24-pin Package Diagram www.austriamicrosystems.com/LED-Driver-ICs/AS1100 Revision 1. ...

Page 15

... AS1100 Datasheet - Figure 10. PDIP 24-pin Package Diagram 1. For more Information on the PDIP 24-pin package www.austriamicrosystems.com/LED-Driver-ICs/AS1100 see Ordering Information on page 16. Revision 1. ...

Page 16

... AS1100PE AS1100WE AS1100WE Serially Interfaced, 8-Digit LED Driver AS1100WL-T AS1100WL Serially Interfaced, 8-Digit LED Driver AS1100WE-T AS1100WE Serially Interfaced, 8-Digit LED Driver 1. The PDIP 24-pin Package reached end of life. There is the possibility for a last time buy order until end of July 2011. ...

Page 17

... AG reserves the right to change specifications and prices at any time and without notice. Therefore, prior to designing this product into a system 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 ...

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