LTC4300A-1CMS8#PBF

LTC4300A-1/LTC4300A-2 Hot Swappable 2-Wire Bus Buffers FEATURES DESCRIPTION n 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. During insertion, the SDA and SCL lines are precharged to 1V to minimize bus disturbances. n n n n n n n n n n Bidirectional Buffer for SDA and SCL Lines Increases Fanout Prevents SDA and SCL Corruption During Live Board Insertion and Removal from Backplane Isolates Input SDA and SCL Lines from Output Compatible with I2C, I2C Fast Mode and SMBus Standards (Up to 400kHz Operation) Low ICC Chip Disable: