TM1622

The TM1622 is a versatile LED driver IC designed to control 7-segment displays, dot matrix LEDs, and other LED indicators. It supports multiplexed driving with 8 segments × 16 digits (or 13 segments × 8 digits), reducing wiring complexity.
Key features:
- 3-wire serial interface (CLK, DIN, STB) for easy MCU communication.
- Adjustable brightness via PWM control.
- Built-in memory for display data storage.
- Low power consumption in standby mode.
Commonly used in appliance displays, industrial panels, and consumer electronics, the TM1622 simplifies LED control while maintaining flexibility. Its compact design and efficient driving method make it ideal for cost-sensitive applications.
For detailed specifications, refer to the datasheet.

The TM1622 is a LED driver controller with key scanning. Equivalent or similar chips include:
- HT1622 (Holtek)
- PT1622 (Princeton Technology)
- FD1622 (Fremont Micro Devices)
- CS1622 (Chipstar)
These alternatives offer comparable features like segment drive, key scanning, and serial interface compatibility. Verify pin compatibility and specifications for your application.

The TM1622 is a memory mapping LED driver with key scanning capabilities. Key features:
- LED Drive: Supports 8 segments × 16 digits (128 LEDs) or 16 segments × 8 digits.
- Key Scan: Built-in 8×4 key matrix scanning.
- Interface: Serial or parallel communication (selectable).
- Brightness Control: Adjustable via software (8 levels).
- Low Power: Supports power-saving modes.
- Voltage Range: Operates at 2.4V–5.5V.
- Package Options: SOP32, DIP32.
Ideal for LED displays and keypad interfaces in appliances, industrial controls, and consumer electronics.

The TM1622 is a LED driver IC commonly used in:
1. Consumer Electronics – Displays for appliances like microwaves, air conditioners, and washing machines.
2. Industrial Controls – Instrument panels, meters, and control systems.
3. Automotive Displays – Dashboard indicators and infotainment systems.
4. Digital Clocks & Thermometers – Simple numeric or segment-based displays.
5. Home Appliances – Smart home devices, timers, and status indicators.
It supports multiplexed LED driving, reducing wiring complexity while enabling bright, efficient displays.

The TM1622 is typically available in a SOP-28 (Small Outline Package with 28 pins) or DIP-28 (Dual In-line Package with 28 pins) format. These packages are common for LED driver ICs, offering compact size and ease of integration. The choice depends on the application's PCB design requirements.