TM1628 Datasheet – LED Controller Driver – Titan Micro

What is TM1628?

It is designed to control LED and seven-segment displays, and it features a built-in keypad scanning function.

The TM1628 IC is designed to interface with microcontrollers and other digital circuits. It communicates using a 3-wire serial interface, which makes it easy to integrate into a wide range of applications. The TM1628 can control up to 8 digits of 7-segment displays, or up to 64 individual LEDs.

One of the key features of this is its built-in keypad scanning function. This allows it to scan up to 24 keys in a matrix arrangement, which is useful for applications such as remote controls or other input devices.

Part Number: TM1628

Function: LED Controller driven on a 1/7 to 1/8 duty factor.

Package: SSOP 28 Pin Type

Manufacturer: Titan Micro Integrated Circuit

TM1628 pinout


The TM1628 is an LED Controller driven on a 1/7 to 1/8 duty factor. Eleven segment output lines, six grid output lines, 1 segment/grid output lines, one display memory, control circuit, key scan circuit are all incorporated into a single chip to build a highly reliable peripheral device for a single chip microcomputer. Serial data is fed to TM1628 via a three-line serial interface.

Housed in a 28-pin SO Package, Device pin assignments and application circuit are optimized for easy PCB Layout and cost saving advantages.

It includes a variety of features to control the display brightness and intensity. It has 16 levels of brightness control and supports both static and dynamic display modes.

Block Diagram :

TM1628 datasheet, block diagram


• CMOS Technology

• Low Power Consumption

• Multiple Display Modes (12 segment, 6 Grid to 11 segment, 7 Grid)

• Key Scanning (8 x 2 Matrix)

• 8-Step Dimming Circuitry

• Serial Interface for Clock, Data Input/Output, Strobe Pins

• Available in 28-pin, SOP Package


• Micro-computer Peripheral Device

• VCR set

• Combi set

TM1628 Datasheet PDF Download

TM1628 pdf


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