HT16K33A-28SOP LED Driver IC 1 Output SOP-28
The HT16K33A-28SOP is a RAM-mapped 16×8 LED controller driver with an integrated 13×3 matrix key scan function, designed for driving LED displays and keyboard interfaces through a simple I²C two-wire communication bus. It features 16×8-bit display RAM, allowing control of up to 128 LED patterns (16 segments × 8 commons) while reducing the workload on the host microcontroller.
Features:
- RAM Mapping 16×8 LED Controller Driver
- Supports up to 128 LED patterns
- I²C two-wire serial interface
- Integrated 16×8-bit display RAM
- Supports 16 segments × 8 commons
- Built-in 13×3 matrix key scanning
- 16-step LED brightness (dimming) control
- Integrated RC oscillator
- Automatic read/write address increment
- Low external component requirement
- Suitable for multiplexed LED displays
- Compact 28-pin SOP package
Specifications:
| Parameter | Value |
|---|---|
| Model | HT16K33A-28SOP. |
| Function | RAM Mapping LED Controller Driver with Key scan. |
| Operating Voltage | 4.5V-5.5V. |
| Oscillator | Integrated RC Oscillator. |
| Interface | I2C Bus (Standard/Fast Mode). |
| Display RAM | 16×8 Bits (128 Bits). |
| Max Display Patterns | 16×8 (16 Segments, 8 Commons). |
| Max Key Matrix | 13×3. |
| Key Data RAM | 13×3 Bits. |
| Dimming Steps | 16 Steps (1/16 to 16/16 Duty). |
| Address Auto Increment | Yes. |
| Interrupt Output | Yes (INT Pin). |
| Power-On Reset | Yes. |
| Standby Mode | Yes. |
| Wake-Up Source | Key Press or I2C Command. |
| Package | 28-Pin SOP (300mil). |
| Operating Temperature | -40°C to +85°C. |
| Storage Temperature | -60°C to +150°C. |
Pin Configuration:
Footprint:
Applications:
- LED Display Modules
- 7-Segment Displays
- 14/16-Segment Alphanumeric Displays
- Digital Clocks
- Thermometers
- Counters
- Multimeters
- Instrumentation Panels
- Industrial Control Indicators
- Consumer Electronics
- Embedded Systems
- DIY Electronics Projects
Package Include:
1x HT16K33A-28SOP LED Driver IC 1 Output SOP-28