LTC4301IDD#PBF

LTC4301 is a supply independent, hot swappable, 2-wire bus buffer allows I/O card insertion into a live backplane without corruption of the data and clock busses. In addition, this device allows the VCC, SDAIN and SCLIN pullup voltage and the SDAOUT and SCLOUT pull-up voltage to be independent from each other. Control circuitry prevents the backplane from being connected to the card until a stop bit or a bus idle is present. When the connection is made, this device provides bidirectional buffering, keeping the backplane and card capacitances isolated. It is widely used in application such as hot board insertion, servers, capacitance buffer/bus extender, desktop computers, compactPCI™ and ATCA systems etc.

• Bidirectional buffer for SDA and SCL lines increases fan-out
• Prevents SDA and SCL corruption during live board insertion and removal from backplane
• Isolates input SDA and SCL line from output
• 10kV human body model ESD protection
• 1V precharge on all SDA and SCL lines
• Supports clock stretching, arbitration and synchronization
• High impedance SDA, SCL pins for VCC = 0V
• CS gates connection from input to output
• Compatible with I²C, I²C fast mode and SMBus standards (upto 400KHz operation)
• Operating temperature is -40°C to 85°C, packaging style is 8-lead plastic DFN

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party