DATASHEET
ICM7218 FN3159
Rev 4.00
May 17, 2016 8-Digit LED Microprocessor-Compatible Multiplexed Display Decoder Driver Features The ICM7218 series of universal LED driver systems provide, in
a single package, all the circuitry necessary to interface most
common microprocessors or digital systems to an LED display.
Included on-chip are an 8-byte static display memory, two
types of 7-segment decoders, multiplex scan circuitry, and
high current digit and segment drivers for either common
cathode or common anode displays. Microprocessor compatible Total circuit integration on-chip includes:
-Digit and segment drivers
-All multiplex scan circuitry
-8-Byte static display memory
-7-Segment Hexadecimal and Code B decoders The lCM7218A and 1CM7218B feature two control lines
(WRITE and MODE) which write either 4 bits of control
information (DATA COMING, SHUTDOWN, DECODE and
HEXA/CODE B) or 8 bits of display input data. Display data is
automatically sequenced into the 8-byte internal memory on
successive positive going WRITE pulses. Data may be
displayed either directly or decoded in Hexadecimal or Code B
formats. Output drive suitable for LED displays directly Common anode and common cathode versions Single 5V supply required Data retention to 2V Supply Shutdown feature -turns off display and puts chip into low
power dissipation mode The ICM7218C and lCM7218D feature two control lines
(WRITE and HEXA/CODE B/SHUTDOWN), 4 separate display …
