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LTC4303IDD#PBF, Interface - Signal Buffers, Repeaters Hot Swappable 2-Wire Bus Buf w/ Stuck Bu

Semiconductors\Interface ICs\Interface - Signal Buffers, Repeaters LTC4303 hot swappable 2-wire bus buffer allows I/O card insertion into a live backplane without corruption of the data and clock busses. When a connection is made, the LTC4303 provides bidirectional buffering, keeping the backplane and card capacitances isolated. If SDAOUT or SCLOUT is low for >= 30ms (typ), the LTC4303 automatically breaks the data and clock bus connection. At this time the LTC4303 automatically generates up to 16 clock pulses on SCLOUT in an attempt to free the bus. During insertion, the SDA and SCL lines are precharged to 1V to minimize bus disturbances. When driven high, ENABLE allows the LTC4303 to connect after a stop bit or bus idle occurs. Driving ENABLE low breaks the connection between SDAIN and SDAOUT, SCLIN and SCLOUT. READY is an open drain output that indicates when the backplane and card sides are connected together. Applications include hot board insertion, servers, capacitance buffer/bus extender, RAID system. • Automatic disconnect of SDA/SCL lines when bus is stuck low for >= 30m • Recovers stuck busses with automatic clocking • Bidirectional buffer for SDA and SCL lines increases fan-out • Prevents SDA and SCL corruption during live board insertion and removal from backplane • Pin compatible with LTC4300A-1, ±15KV human body model ESD protection • Isolates input SDA and SCL lines from output • Compatible with I2C™, I2C fast-mode and SMBus standards (up to 400KHz operation) • READY open drain output, 1V precharge on all SDA and SCL line • High impedance SDA, SCL pins for VCC = 0V, ENABLE gates connection from input to output • 8-lead plastic DFN package, -40°C to 85°C operating temperature range

IC Case / Package	DFN
Количество Выводов	8вывод(-ов)
Максимальная Рабочая Температура	85°C
Максимальное Напряжение Питания	5.5В
Минимальная Рабочая Температура	-40°C
Минимальное Напряжение Питания	2.7В
Стиль Корпуса ИС Контроллера	DFN
Уровень Чувствительности к Влажности (MSL)	MSL 1-Безлимитный