The CP2120 compact SPI-to-I2C bridge and general purpose port expander device can be easily added to a system to solve interface compatibility problems and add more GPIO when required.
The chip includes a 4-wire slave SPI bus, bridge control logic, a bidirectional I2C bus interface and eight general-purpose input/output (I/O) pins. An SPI master communicates with other I2C devices by instructing the CP2120 to send and receive I²C data traffic using the simple command set. The CP2120 can act as a master-transmitter and a master-receiver on the I2C bus. All I2C timing, addressing and arbitration is handled by the CP2120.
| Silicon Labs | |
|---|---|
| Product Category | Microcontrollers (MCU) |
| Product Number | CP2120 |
| Product Name | USB-UART Bridge MCU |
| Data Bus | 8 Bit |
| Life Cycle Stage | Saturation |
| Features | Oscillator Safeguard |
| Bits | 16 Bit |
| Number | 0.0 |
