• 4-wire SPI bus operates at frequencies up to 1 MHz
  • Fully-functional I2C master transmit and receive operation
  • I2C data at frequencies configurable up to 400 kHz
  • 255 byte data receive and transmit buffers
  • Internal oscillator
  • 2.4 to 3.6 volt operation
  • Active LOW interrupt output
  • 5 volt tolerant I/O pins
  • 8 general-purpose I/O pins

Getting Started with CP2120


CP2120 Evaluation Kit

The easiest way to begin development with the CP2120 is with the CP2120 Evaluation Kit. The CP2120 evaluation kit demonstrates the SPI-to-I2C fixed functionality.

Buy Kit

More Tools and Resources

Part NumberData SheetCommunicationsRAM (kB)Package TypePackage SizeInternal OscillatorOtherOrder Part NumberShort Description

SPI to I2C512 (buffer RAM)QFN204x4 mmYesVoltage MonitorCP2120SPI-I2C Bridge & GPIO Expander QFN20