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AS1100WL Datasheet(PDF) 1 Page - ams AG |
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AS1100WL Datasheet(HTML) 1 Page - ams AG |
1 / 12 page Data Sheet AS1100 Revision 1.32, Oct. 2004 Page 1 of 12 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 Reset1 - Optional External clock - 24-Pin DIP and SO Packages - Fully compatible to MAX7219 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. It 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. 1 Software Reset and external clock are not supported by MAX7219 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 fully compatible to the MAX 7219. AS1100 is offered in a 24 pins PDIP and SOIC package. Applications - Bar-Graph Displays - Industrial Controllers - Panel Meters - LED Matrix Displays - White Goods Serially Interfaced, 8-Digit LED Driver AS1100 DATA SHEET 8-Digit µP Display 8 Segments 8 Digits 9.53k +5V MOSI µP I/O SCK LOAD CLK GND GND DIG0-DIG7 SEG A-G SEP DP VDD 4 9 1 12 1 18 19 ISET DIN Pin Configuration Typical Application Circuit AS1100 1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 19 18 17 16 15 14 13 DIP/SO 24 DIN DIG0 DIG1 DIG2 DIG3 DIG4 DIG5 DIG6 DIG7 GND GND LOAD DOUT VDD ISET CLK SEG A SEG B SEG C SEG D SEG E SEG F SEG G SEG DP TOP |
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