PCA9665A Overview
The PCA9665/PCA9665A serves as an interface between most standard parallel-bus microcontrollers/microprocessors and the serial I2C-bus and allows the parallel bus system to municate bidirectionally with the I2C-bus. The PCA9665/PCA9665A can operate as a master or a slave and can be a transmitter or receiver. munication with the I2C-bus is carried out on a Byte or Buffered mode using interrupt or polled handshake.
PCA9665A Key Features
- 1 MHz transmission speeds
- Up to 25 mA drive capability on SCL/SDA
- 68-byte buffer
- I2C-bus General Call
- Software reset on the parallel bus
- Parallel-bus to I2C-bus protocol converter and interface
- Both master and slave functions
- Multi-master capability
- Internal oscillator trimmed to 15 % accuracy reduces external ponents
- 1 Mbit/s and up to 25 mA SCL/SDA IOL (Fast-mode Plus (Fm+)) capability
PCA9665A Applications
- Add I2C-bus port to controllers/processors that do not have one
- Add additional I2C-bus ports to controllers/processors that need multiple I2C-bus ports
- Converts 8 bits of parallel data to serial data stream to prevent having to run a large
