PCA9514

INTEGRATED CIRCUITS PCA9513; PCA9514 Hot swappable I2C and SMBus bus buffer Product data sheet Supersedes data of 2004 Jan 07 2004 Oct 05 Philips Semiconductors Philips Semiconductors Hot swappable I2C and SMBus bus buffer Product data sheet PCA9513; PCA9514 DESCRIPTION The PCA9513 and PCA9514 are hot swappable I2C and SMBus buffers that allows I/O card insertion into a live backplane without corrupting the data and clock buses. Control circuitry prevents the backplane from being connected to the card until a stop command or bus idle occurs on the backplane without bus contention on the card. When the connection is made, the PCA9511, PCA9513, and PCA9514 provides bi-directional buffering, keeping the backplane and card capacitances isolated. Rise time accelerator circuitry allows the use of weaker DC pull-up currents while still meeting rise time requirements. The PCA9513 and PCA9514 incorporate a digital ENABLE input pin, which enables the device when asserted HIGH and forces t...