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LTC4300A-3CDD Datasheet(PDF) 5 Page - Linear Technology |
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LTC4300A-3CDD Datasheet(HTML) 5 Page - Linear Technology |
5 / 12 page LTC4300A-3 5 sn4300a3 4300a3fs VCC2 (Pin 1): Card Supply Voltage. This is the supply voltage for the devices on the card I2C busses. Connect pull-up resistors from SDAOUT and SCLOUT to this pin. Place a bypass capacitor of at least 0.01µF close to this pin for best results. 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 the SCL bus on the backplane. GND (Pin 4): Device Ground. Connect this pin to a ground plane for best results. ENABLE (Pin 5): Digital CMOS Threshold Input. Ground- ing this pin puts the part in a low current mode. It also disables the rise-time accelerators, disables the bus discharge circuitry, isolates SDAIN from SDOUT and isolates SCLIN from SCLOUT. For active operation, drive this pin to VCC. If this feature is unused, tie to VCC. Since ENABLE is VCC referenced, do not connect to VCC2 or pull up to VCC2. SDAIN (Pin 6): Serial Data Input. Connect this pin to the SDA bus on the backplane. SDAOUT (Pin 7): Serial Data Output. Connect this pin to the SDA bus on the card. VCC (Pin 8): Main Input Power Supply from Backplane. This is the supply voltage for the devices on the backplane I2C busses. Connect pull-up resistors from SDAIN and SCLIN to this pin. Place a bypass capacitor of at least 0.01µF close to this pin for best results. Exposed Pad (Pin 9, DFN Package Only): Exposed Pad may by be left open or connected to device ground. PI FU CTIO S |
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