DESCRIPTION

The PCA9516 is a BiCMOS integrated circuit intended for application in I2C and SMBus systems.

While retaining all the operating modes and features of the I2C system, it permits extension of the I2C bus by buffering both the data (SDA) and the clock (SCL) lines, thus enabling five buses of 400 pF.

The I2C bus capacitance limit of 400 pF restricts the number of devices and bus length. Using the PCA9516 enables the system designer to divide the bus into five segments off of a hub where any segment to segment transition sees only one repeater delay.

FEATURES

• 5 channel, bi-directional buffer

• I2C-bus and SMBus compatible

• Active high individual repeater enable input

• Open-drain input/outputs

• Lock-up free operation

• Supports arbitration and clock stretching across the repeater

• Accommodates standard mode and fast mode I2C devices and multiple masters

• Powered-off high impedance I2C pins

• Operating supply voltage range of 3.0 V to 3.6 V

• 5 V tolerant I2C and enable pins

• 0 to 400 kHz clock frequency1

• ESD protection exceeds 2000 V HBM per JESD22-A114, 200 V MM per JESD22-A115, and 1000 V CDM per JESD22-C101.

• Latch-up testing is done to JEDEC Standard JESD78 which exceeds 100 mA.

• Package offerings: SO and TSSOP