LED display driver for 8-digit 7-segment numeric readouts
The Maxim ICM7218DIQI+ is a dedicated LED display driver IC designed to drive up to 8 digits of 7-segment common-cathode or common-anode LED displays. It accepts data via a parallel interface, making it straightforward to connect to a microcontroller or logic system without needing a serial protocol. The driver integrates segment current sources, so external current-limiting resistors are not required for most LED panels. Typical applications include panel meters, frequency counters, digital multimeters, and any industrial or test equipment that needs a bright numeric readout.
Supply range and current draw — power-tree fit
Supply range is 2V to 6V. Supply current is 250 µA.
Temperature grade and environment
Operating temperature range is -20°C to 85°C.
Package and assembly
Housed in a 28-PLCC (J-Lead) package with a body size of 11.51 x 11.51 mm. The J-Lead footprint is standard for PLCC and is compatible with reflow soldering.
Lifecycle and sourcing
The ICM7218DIQI+ is listed as Active and ROHS3 compliant. There is no NRND or EOL flag, so it remains a valid choice for new designs and ongoing production.