What this part does and where it fits
The Renesas ICM7228BIBIZ is a multiplexed LED driver that controls up to 8 digits of 7-segment common-cathode displays. It integrates the digit scan, segment current sinks, and BCD-to-7-segment decoding or direct segment drive, so the host MCU only writes digit data over a parallel bus. The 28-SOIC footprint keeps the board area small for panel meters, industrial counters, and instrumentation readouts that need a bright, readable numeric display.
Supply voltage and current – design constraints
The part runs on a single 4V to 6V supply. The 250 µA supply current is the chip's own draw, not including the LED segment current.
Temperature grade and environment
Rated for -40°C to 85°C, so this driver is comfortable in outdoor telecom cabinets, factory-floor HMI panels, and engine-bay instrumentation. The industrial temperature range also covers unheated storage and transport – a common concern for equipment that ships globally.
Lifecycle and sourcing
Renesas lists the ICM7228BIBIZ as Active. There is no NRND or EOL notice on this part, so it is safe to qualify into a new BOM. It is ROHS3 compliant.