FD650S Datasheet PDF – LED Drive Controller – FDHISI

Part Number: FD650S

Function: LED Drive Controller / Keyboard Scan ASIC

Package: DIP 16 Pin ( FD650K ), SOP 16 Pin ( FD650S )

Manufacturer: Fuda Hisi Microelectronics


FD650S image


LED Driver FD650 is an interface with a keyboard scanning circuit drive control dedicated circuit. Internal MCU integrated input  Output controls the digital interface, data latches, LED drive, keyboard scanning, brightness adjustment and other circuitry. The chip resistance Stable, reliable, strong anti-interference ability, can be adapted to long-term applications 24 hours of continuous work.






1. Display mode : 8 segments × 4 digits

2. The segment drive current is not less than 25mA and the word drive current is not less than 150mA

3. Provides 8 levels of brightness control

4. Keyboard scanning : 7 × 4bit

5. High-speed two-wire serial interface

6. Built-in clock oscillation circuit

7. Built-in power-on reset circuit

8. Supports 3V to 5.5V supply voltage

Applcation Circuit

FD650S Datasheet

FD650S Datasheet PDF

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