中文
EnglishME7400D, Dot Matrix LED Driver, CMOS technology, 12×8 matrix output, 8×4 keyboard scanning, 3-wire serial interface, 8-level brightness adjustment, low-power consumption, SOP32 package, bidirectional DIO port
ME7400D is a dot matrix LED driver IC featuring 12 segment outputs, 8 grid outputs, 1 display storage unit, and related control circuits. It integrates an MCU digital interface, data latch, and LED driver module, specifically designed for small LED display driving. Adopting CMOS technology and housed in an SOP32 package, it combines display driving and 8×4 keyboard scanning functions, with low-power consumption and a bidirectional DIO port for serial data input/output.
- Adopts CMOS technology with low-power consumption
- Display mode: 12 Segments × 8 Grids matrix output
- Keyboard scanning function: 8×4 matrix support (K0~K3 key input ports)
- Brightness adjustment: 8 adjustable duty cycles (1/16 to 14/16)
- Equipped with 3-wire serial interface (DIO, CLK, STB) with bidirectional DIO port
- Built-in RC oscillation and power-on reset
- Supports data write/read modes and automatic/fixed address transmission
- Maximum total output driver current: 400mA (SEG max -50mA, GRID max 200mA)
- Wide operating temperature range (-40~+85°C) for versatile environmental adaptation
