DESCRIPTION

· The Intersil ICM7228 is an 8-digit, microprocessor-compatible LED display decoder driver.

· It interfaces microprocessors to an 8-digit, 7-segment numeric LED display.

· Includes two types of 7-segment decoders, multiplex scan circuitry, LED segment and digit drivers, and an 8-byte static memory as display RAM.

· Data can be written in sequential 8-digit update or single-digit update format for ICM7228A/B, and parallel random access format for ICM7228C.

· ICM7228A and ICM7228C drive common anode displays, while ICM7228B drives common cathode displays.

· Supports Hexadecimal, Code B, and No Decode modes for RAM data display.

· No Decode mode allows individual segment control for irregular display formats like bargraphs.

· Acts as an alternative to Maxim ICM7218 and Intersil ICM7218 display drivers.

FEATURES

· Pb-Free Plus Anneal available (RoHS Compliant).

· Improved 2nd source to Maxim ICM7218.

· Fast write access time of 200ns.

· Multiple microprocessor-compatible versions.

· Hexadecimal, Code B, and No Decode modes supported.

· Individual segment control with "No Decode" feature.

· On-chip digit and segment drivers.

· Non-overlapping digits drive.

· Common anode and common cathode LED versions.

· Low power CMOS architecture.

· Single 5V supply operation.

APPLICATIONS

· Instrumentation.

· Test equipment.

· Hand-held instruments.

· Bargraph displays.

· Numeric and non-numeric panel displays.

· High and low temperature environments where LCD display integrity is compromised.