(Hong Kong)
Product Summary
The LTC4300A-2CMS8#TR 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-2CMS8#TR provides 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. The applications of the LTC4300A-2CMS8#TR are (1)hot board insertion; (2)servers; (3)capacitance buffer/bus extender; (4)desktop computer.
Parametrics
LTC4300A-2CMS8#TR absolute maximum ratings: (1)VCC to GND: -0.3 to 7V; (2)VCC2 to GND (LTC4300A-2): -0.3 to 7V; (3)SDAIN, SCLIN, SDAOUT, SCLOUT: -0.3 to 7V; (4)READY, ENABLE (LTC4300A-1): -0.3 to 7V; (5)ACC (LTC4300A-2): -0.3 to 7V; (6)Operating Temperature Range; (7)LTC4300A-1C/LTC4300A-2C: 0°C to 70°C; (8)LTC4300A-1I/LTC4300A-2I: -40°C to 85°C; (9)Storage Temperature Range: -65°C to 125°C; (10)Lead Temperature (Soldering, 10 sec): 300°C.
Features
LTC4300A-2CMS8#TR features: (1)Bidirectional Buffer for SDA and SCL Lines Increases Fanout; (2)Prevents SDA and SCL CorruptioDuring Live Board Insertioand Removal from Backplane; (3)Isolates Input SDA and SCL Lines from Output; (4)Compatible with I2CTM, I2C Fast Mode and SMBus Standards (Up to 400kHz Operation); (5)Small MSOP 8-PiPackage; (6)Low ICC Chip Disable: <1mA (LTC4300A-1); (7)READY OpeDraiOutput (LTC4300A-1); (8)1V Precharge oall SDA and SCL Lines; (9)Supports Clock Stretching, Arbitratioand Synchronization; (10)5V to 3.3V Level Translatio(LTC4300A-2); (11)High Impedance SDA, SCL Pins for VCC = 0V.
Diagrams
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 LTC4300A-2CMS8#TR |
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IC BUFFER BUS 2WR HOTSWAP 8-MSOP |
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LTC4300A-2CMS8#TRPBF |
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IC BUFFER BUS 2WR HOTSWAP 8-MSOP |
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