TM1640 LED Driver IC – 128-LED Display Controller – SOP-28 – Titan Micro

The TM1640 from Titan Micro Electronics is a high-performance LED driver and keyboard scan controller ICdesigned for large LED display systems. Supplied in a compact SOP-28 (300 mil) surface-mount package, the TM1640 supports up to 128 LEDs, making it ideal for driving 16-digit 7-segment displays, 8×8 dot-matrix modules, and other multi-segment indicators.

With support for 8 segments × 16 bits of display data and integrated 8×2 key scanning, the TM1640 provides an efficient solution for display and input management in microcontroller-based systems. Communication is handled through a simple dual-line serial interface (CLK, DIN), minimizing I/O pin usage on the host MCU.

Operating from a standard 5V supply, the IC includes 8-level adjustable brightness, a built-in 450 kHz RC oscillator, and a power-on reset circuit, ensuring stable and flicker-free output for digital clocks, scoreboards, control panels, appliances, and LED modules.

Key Specifications:

• Manufacturer: Titan Micro Electronics (TM)

• Part Number: TM1640

• Function: LED driver + keyboard scan controller

• Display Capacity: 8 segments × 16 bits (supports up to 128 LEDs)

• Interface: Dual-line serial (CLK, DIN)

• Operating Voltage: 5V logic supply

• Features:
  – 8-level brightness adjustment
  – Built-in 450 kHz RC oscillator
  – Power-on reset circuit

• Keyboard Scan: 8×2 key matrix support

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

Package Includes:
1 x TM1640 LED Driver IC (SOP-28)

Note: Image is for representation purpose only.