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LTC4300A-2 Datasheet

Part Number LTC4300A-2
Manufacturers Linear Technology
Logo Linear Technology
Description Hot Swappable 2-Wire Bus Buffers
Datasheet LTC4300A-2 DatasheetLTC4300A-2 Datasheet (PDF)

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: <1μA (LTC4300A-1) n READY Open Drain Output (LTC4300A-1) n 1V Precharge on all SDA and SCL Lines n Supports Clock Stretching, Arbitration and Synchronization n 5V to 3.3V Level Translatio.

  LTC4300A-2   LTC4300A-2






Part Number LTC4300A-3
Manufacturers Linear Technology
Logo Linear Technology
Description Level Shifting Hot Swappable 2-Wire Bus Buffer
Datasheet LTC4300A-2 DatasheetLTC4300A-3 Datasheet (PDF)

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 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 VCC = 0V, VC.

  LTC4300A-2   LTC4300A-2







Part Number LTC4300A-1
Manufacturers Linear Technology
Logo Linear Technology
Description Hot Swappable 2-Wire Bus Buffers
Datasheet LTC4300A-2 DatasheetLTC4300A-1 Datasheet (PDF)

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: <1μA (LTC4300A-1) n READY Open Drain Output (LTC4300A-1) n 1V Precharge on all SDA and SCL Lines n Supports Clock Stretching, Arbitration and Synchronization n 5V to 3.3V Level Translatio.

  LTC4300A-2   LTC4300A-2







Hot Swappable 2-Wire Bus Buffers

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: <1μA (LTC4300A-1) n READY Open Drain Output (LTC4300A-1) n 1V Precharge on all SDA and SCL Lines n Supports Clock Stretching, Arbitration and Synchronization n 5V to 3.3V Level Translation (LTC4300A-2) n High Impedance SDA, SCL Pins for VCC = 0V n Small MSOP 8-Pin Package APPLICATIONS n Hot Board Insertion n Servers n Capacitance Buffer/Bus Extender n Desktop Computer L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and Hot Swap and ThinSOT are trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. *Protected by U.S. Patents, including 6650174. LTC4300A-1/LTC4300A-2 Hot Swappable 2-Wire Bus Buffers 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. During insertion, the SDA and SCL lines are precharged to 1V to mi.


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