TM1628A LED Display Driver & Key Scan Controller IC – SOP-28 – Titan Micro

The TM1628A from Titan Micro Electronics is a highly integrated LED display driver and key-scan controller IC, designed for multiplexed LED display systems and keypad scanning applications. Offered in a SOP-28 (300 mil)surface-mount package, it combines display driving, keyboard control, and serial communication into a compact and efficient solution ideal for home appliances, consumer electronics, control panels, and embedded display modules.

Supporting multiple display configurations—ranging from 10 segments × 7 digits to 13 segments × 4 digits—the TM1628A provides outstanding versatility for a wide variety of display formats. Its 8×2 key scan matrix allows up to 16 keys to be read with minimal microcontroller overhead.

The IC communicates with an MCU using a simple 3-wire interface (STB, CLK, DIO), greatly reducing pin count and simplifying PCB design. It features 8-level brightness control, a built-in RC oscillator, power-on reset, and operates reliably across a 3V to 6V supply range (logic supply: 4.5V to 5.5V).

Key Specifications:

• Manufacturer: Titan Micro Electronics

• Part Number: TM1628A

• Function: LED display driver + 8×2 key scan controller

• Display Modes: 10×7, 11×6, 12×5, 13×4 segment-digit configurations

• Keyboard Scan: 8×2 matrix (16 keys)

• Interface: 3-wire serial (STB, CLK, DIO)

• Operating Voltage: 3V to 6V (logic: 4.5V to 5.5V)

• Features:
  – 8-level adjustable brightness
  – Built-in RC oscillator
  – Power-on reset

• Package: SOP-28, 300 mil width (surface-mount)

Package Includes:
1 x TM1628A LED Display Driver IC (SOP-28)

Note: Image is for representation purpose only.