HT16K33A-20SOP LED Driver IC 1 Output SOP-20
The HT16K33A-20SOP is a RAM-mapped LED driver IC designed for driving LED matrices, 7-segment displays, and indicator panels through a simple I2C interface. It integrates a 16×8 display RAM, internal RC oscillator, digital brightness control, and keyboard scanning functionality, making it an excellent choice for embedded display applications.
This IC supports up to 128 LEDs arranged as a 16×8 matrix and communicates with microcontrollers using the standard I2C bus, reducing GPIO requirements while simplifying firmware development. The SOP-20 package offers easy PCB assembly for both prototyping and mass production.
Features:
- Supports up to 128 LEDs (16 Segments × 8 Commons)
- Built-in 16×8-bit display RAM
- I2C serial communication interface
- Internal RC oscillator
- Integrated keyboard scanning function
- Supports up to 13×3 key matrix scanning
- 16-level digital brightness adjustment
- Automatic address increment for RAM read/write
Specifications:
| Parameter | Value |
|---|---|
| Manufacturer | Holtek |
| Product Model | HT16K33A-20SOP |
| Function | LED Driver with Key scan |
| Interface | I2C |
| Operating Voltage | 4.5VDC~5.5VDC |
| Display RAM | 16x8bit |
| Max Display Dots | 128Dots(16SEGs x 8COMs) |
| Keyscan Matrix | 13×3 |
| Max Key Count | 39Keys |
| Dimming Steps | 16Steps |
| Oscillator | Internal RC |
| Address Selection | ADPin |
| Max I2C Devices on Bus | 8 |
| Operating Temperature | -40°C~+85°C |
| Storage Temperature | -60°C~+150°C |
| Package Type | SOP-20 |
| Lead Span | 300mil |
| Mounting Type | SMD |
Pin Configuration:
Footprint:
Applications:
- LED Matrix Displays
- 7-Segment LED Displays
- Digital Clocks
- Temperature Displays
- Electronic Counters
- Multimeters
- Industrial Indicators
- Set-Top Boxes
- Consumer Electronics
- Embedded Display Systems
Package Include:
1x HT16K33A-20SOP LED Driver IC 1 Output SOP-20