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SC16IS752 I²C/SPI to Dual-Channel UART Converter Module — 2×UART, 3.3V/5V, Arduino
SC16IS752 I²C/SPI to Dual-Channel UART Converter Module 2×UART, 3.3V/5V, Arduino
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$19.88 USD
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SC16IS752 I²C / SPI to Dual-Channel UART Converter Module — 2×UART, 3.3V/5V
The SC16IS752 module adds two independent UART serial ports to any microcontroller via a single I²C or SPI interface. Based on the NXP SC16IS752 bridge IC, each UART channel supports baud rates up to 5Mbps with 64-byte TX/RX FIFOs, making it ideal for Arduino, ESP32, and Raspberry Pi projects that require more serial ports than the MCU natively provides.
Key Specifications
| Parameter | Value |
|---|---|
| IC | NXP SC16IS752 |
| Interface to MCU | I²C or SPI (selectable) |
| UART Channels | 2 independent full-duplex UART |
| Max Baud Rate | 5Mbps per channel |
| TX/RX FIFO | 64 bytes per channel (TX + RX) |
| Supply Voltage | 3.3V or 5V |
| I²C Address | Configurable via A0/A1 jumper pins |
| Additional GPIO | 8 GPIO pins (via SC16IS752) |
| Flow Control | RTS/CTS hardware flow control |
Why Choose SC16IS752?
- ✅ 2 extra UART ports via I²C/SPI — no additional MCU pins consumed beyond 2–4
- ✅ 5Mbps per channel — high-speed serial for demanding applications
- ✅ 64-byte FIFO per channel — reduces interrupt overhead and prevents data loss
- ✅ 3.3V / 5V compatible — works with Arduino, ESP32, Raspberry Pi
- ✅ 8 bonus GPIO pins — extra I/O from the SC16IS752 GPIO register
- ✅ I²C address configurable — multiple modules on the same bus
Typical Applications
- Adding 2 extra UART ports to Arduino Uno/Mega
- ESP32 multi-UART expansion for GPS + GSM simultaneously
- Raspberry Pi additional serial port for RS232/RS485
- Industrial multi-device serial communication hub
- RS232 / RS485 multi-port interface expansion
- Modbus RTU multi-slave polling system
Package Contents
- 1 × SC16IS752 I²C/SPI to Dual UART Converter Module
