Datasheet Analog Devices LTC4300A-3CMS8#TRPBF

LTC4300A-3
Level-Shifting
Hot Swappable 2-Wire
Bus Buffer with Enable
Features Description Bidirectional Buffer* for SDA and SCL Lines
Increases Fanout
n Prevents SDA and SCL Corruption During Live
Board Insertion and Removal From Backplane
n Logic Threshold ENABLE Input
n Isolates Input SDA and SCL Lines From Output
n Compatible with I2C, I2C Fast Mode and SMBus
Standards (Up to 400kHz Operation)
n 1V Precharge on all SDA and SCL Lines
n Supports Clock Stretching, Arbitration and
Synchronization
■ 5V to 3.3V Level Translation
■ High Impedance SDA, SCL Pins for V
CC = 0V, VCC2 = 0V
■ Small 8-Lead DFN and MSOP Packages The LTC®4300A-3 hot swappable 2-wire bus buffer allows
I/O card insertion into a live backplane without corruption
of the data and clock busses. When the connection is made,
the LTC4300A-3 provides bidirectional buffering, keeping
the backplane and card capacitances isolated. Rise time …