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LTC4300A-1 Datasheet Hot Swappable 2-wire Bus Buffers

Manufacturer: Linear Technology (now Analog Devices)

General Description

The LTC®4300A series hot swappable 2-wire bus buffers allow I/O card insertion into a live backplane without corruption of the data and clock busses.

When the connection is made, the LTC4300A-1/LTC4300A-2 provide bidirectional 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.

Key Features

  • n Bidirectional Buffer for SDA and SCL Lines Increases Fanout n Prevents SDA and SCL Corruption During Live Board Insertion and Removal from Backplane n Isolates Input SDA and SCL Lines from Output n Compatible with I2C, I2C Fast Mode and SMBus Standards (Up to 400kHz Operation) n Low ICC Chip Disable:.

LTC4300A-1 Distributor