PCA9525 Overview
The PCA9525 is a monolithic CMOS integrated circuit for bus buffering in applications including I2C-bus, SMBus, DDC, PMBus, and other systems based on similar principles. The buffer extends the bus load limit by buffering both the SCL and SDA lines, allowing the maximum permissible bus capacitance on both sides of the buffer. The PCA9525 includes a unidirectional buffer for the clock signal, and a bidirectional...
PCA9525 Key Features
- Simple impedance isolating buffer for 2-wire buses
- 4 mA maximum static open-drain pull-down capability supports a wide range of bus standards
- Works with I2C-bus (Standard-mode, Fast-mode), SMBus (standard and high power mode), and PMBus
- Fast switching times allow operation in excess of 1 MHz
- Enable allows bus segments to be disconnected
- Hysteresis on inputs provides noise immunity
- Operating voltages from 2.7 V to 5.5 V
- Very low supply current
- Unplicated characteristics suitable for quick implementation in most mon 2-wire bus