TM1628A

The TM1628A is a versatile LED driver and key-scanning IC designed for controlling LED displays (up to 7-segment × 10 digits or 8×8 matrix) and keyboard inputs (up to 8×3 keys). It communicates via a serial interface (CLK, STB, DIO), reducing microcontroller pin usage.
### Key Features:
- LED Drive: Supports 10 segments × 8 commons or 13 segments × 7 commons.
- Key Scan: Built-in 8×3 matrix scanning with internal pull-ups.
- Interface: Simple 3-wire serial control (compatible with 5V/3.3V logic).
- Brightness Control: Adjustable via 8-level PWM dimming.
- Low Power: Supports standby mode to reduce consumption.
### Applications:
- Appliances (microwaves, washing machines)
- Industrial control panels
- Consumer electronics with keypad/LED interfaces
The TM1628A simplifies LED and keypad integration, making it ideal for cost-effective embedded systems.

The TM1628A is a LED driver and key-scan IC. Equivalent or similar products include:
- TM1628B (updated version)
- TM1629 (supports more segments)
- HT1628 (Holtek)
- FD628 (Fudan Micro)
- SM1628 (Sinomcu)
These chips offer comparable LED display and key-scan functions but may vary in pinout, voltage range, or additional features. Always check datasheets for compatibility.

The TM1628A is a versatile LED driver and key-scanning IC with the following key features:
- LED Driver: Supports up to 8 segments × 16 digits (or 10 segments × 13 digits) for multiplexed LED displays.
- Key Scanning: Integrated 8×3 key-scan matrix (24 keys max) with built-in pull-down resistors.
- Communication Interface: Uses a simple 3-wire serial interface (STB, CLK, DIO) for easy MCU control.
- Brightness Control: Adjustable LED brightness via software (8 levels).
- Low Power Consumption: Supports power-saving modes.
- Wide Voltage Range: Operates at 2.7V–5.5V, compatible with 3.3V/5V systems.
- Internal Memory: Includes display RAM for data storage.
Commonly used in appliances, industrial controls, and consumer electronics for display and keypad interfacing.

The TM1628A is manufactured by Titan Micro Electronics (TME), a Chinese semiconductor company specializing in integrated circuits (ICs) for display drivers, LED control, and consumer electronics. Founded in 2004 and headquartered in Shenzhen, TME focuses on cost-effective solutions for applications like appliances, industrial controls, and automotive displays. The TM1628A is a common LED driver with keypad scanning, widely used in devices requiring segment displays and button inputs. TME is known for its competitive pricing and reliability in the Asian market.

The TM1628A is a versatile LED driver and key-scanning IC, commonly used in:
1. Home Appliances – Displays for microwaves, ovens, and air conditioners.
2. Consumer Electronics – Digital clocks, audio equipment, and dashboards.
3. Industrial Controls – Instrument panels and machinery status indicators.
4. Automotive Displays – Car audio systems and dashboard readouts.
5. Medical Devices – Simple monitoring equipment interfaces.
It supports up to 8-segment LED displays and 16 keys, making it ideal for compact, cost-effective control panels.

The TM1628A is typically available in a SOP28 (Small Outline Package, 28-pin) or DIP28 (Dual In-line Package, 28-pin) format. These packages are common for LED driver and key-scan ICs, offering compact size (SOP) or easy prototyping (DIP). Pin spacing is usually 1.27mm (SOP) or 2.54mm (DIP). Check datasheets for exact dimensions.