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LTC4304 Datasheet(PDF) 5 Page - Linear Technology |
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LTC4304 Datasheet(HTML) 5 Page - Linear Technology |
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5 / 16 page  LTC4304 5 4304fa ENABLE (Pin 1): Connection Enable. This is a digital threshold input pin. For normal operation ENABLE is high. Driving ENABLE below 0.8V isolates SDAIN from SDAOUT, SCLIN from SCLOUT, asserts READY low and disables automatic clocking. A rising edge on ENABLE after a fault has occurred unconditionally forces a connection between SDAIN, SDAOUT and SCLIN, SCLOUT. SCLOUT (Pin 2): Serial Clock Output. Connect this pin to the SCL bus on the card. SCLIN (Pin 3): Serial Clock Input. Connect this pin to SCL on the bus backplane. ACC (Pin 4): Rise-Time Accelerator Control. Connect ACC to VCC to disable all four accelerators. Connect ACC to GND to enable all four accelerators. Float ACC to enable the SDAOUT and SCLOUT accelerators only. For applica- tions when VCC is greater than the bus pull-up voltage, connect ACC to VCC. GND (Pin 5): Device Ground. Connect this pin to a ground plane for best results. READY (Pin 6): Connection Status Flag. READY provides a digital flag which indicates the status of the connection circuitry described in the “Connection Circuitry” section. Connect a resistor of 10k to VCC to provide the pull-up. FAULT (Pin 7): Bus Stuck Low Fault. FAULT is an open drain N-channel MOSFET which pulls low to signal a bus stuck low condition. In normal operation, FAULT is high. Connect a 10k resistor from this pin to VCC to provide the pull-up. SDAIN (Pin 8): Serial Data Input. Connect this pin to the SDA bus on the backplane. SDAOUT (Pin 9): Serial Data Output. Connect this pin to the SDA bus on the card. VCC (Pin 10): Supply Voltage Input. Place a bypass capaci- tor of at least 0.01µF close to VCC for best results. Exposed Pad (Pin 11, DFN Only): Exposed pad may be left open or connected to the ground plane. PI FU CTIO S |
Similar Part No. - LTC4304_15 |
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Similar Description - LTC4304_15 |
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