ICM7243 8-Character, Microprocessor-Compatible, LED Display Decoder Driver
The ICM7243 is an 8‑character LED display decoder and driver that supports 14‑segment and 16‑segment fonts with decimal points. It includes a 64‑character ASCII decoder, 8 × 6 static memory, character and segment drivers, and multiplex scan circuitry, allowing direct connection to common‑cathode LED displays.
The device operates from a single 5 V supply, offers both sequential and random access data entry modes, and can be cascaded without extra hardware. It is supplied in 40‑lead PDIP and 44‑lead MQFP packages and meets RoHS requirements.
| Supply Voltage | 5.0 V (typical) |
|---|---|
| Operating Supply Current | 180 mA (typical) |
| Quiescent Supply Current | 30 pA (typical) |
| Character Drive Current | 140 mA (typical) |
| Segment Drive Current | 14 mA (typical) |
| Display Scan Rate | 400 Hz |
| Operating Temperature Range | -25 °C to 85 °C |
| Package (PDIP) | 40‑lead dual‑inline plastic |
| Package (MQFP) | 44‑lead metric quad flat‑pack |
It can display up to 8 characters.
The device supports Sequential Access mode (MODE = 1) and Random Access mode (MODE = 0).
The device operates from –25 °C to 85 °C.
It requires a 5 V supply (typical 5.0 V).