PCA9515BDGKR

The PCA9515B is a BiCMOS dual bidirectional buffer IC designed for I²C bus and SMBus applications. The device contains two identical bidirectional open-drain buffer circuits capable of extending I²C and similar bus systems (or adding slave devices) without degrading system performance. The dual bidirectional I²C buffer operates from a VCC supply of 2.3V to 3.6V. The PCA9515B buffers the serial data (SDA) and serial clock (SCL) signals on the I²C bus while preserving all operating modes and characteristics of the I²C system. The device allows two buses with capacitance of 400pF each to be connected in I²C applications.

Applications

• Servers
• Routers (telecom switching equipment)
• Industrial equipment
• Products with multiple I²C slave devices and long PCB traces

Key features

• 2-channel bidirectional buffer
• I²C bus and SMBus compatible
• Supports I²C standard mode (100kHz) and fast mode (400kHz)
• Active-high repeater enable input
• Open-drain I²C inputs and outputs
• 5.5V tolerant I²C inputs and outputs and enable input, supporting mixed-mode signal operation
• Latch-up free operation
• Supports standard mode, fast mode I²C devices, and multiple masters
• Supports arbitration and clock stretching on the repeater
• Power-off high-impedance I²C pins
• Latch-up performance exceeds 100mA, compliant with JESD 78 Class I specifications
• ESD protection performance exceeds JESD 22 specifications
• 2000V Human Body Model (A114-A)
• 1000V Charged Device Model (C101)