PinoutSpecificationsSupply voltage range, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . .0.5 V to 4.6 VInput voltage range, VI: Except I/O ports (see Note 1) . . . . . . . . . . . . . . . .. . . . .0.5 V to 4.6 V I/O ports (see Notes 1 and 2) . . . . . . . .0...
SN74ALVCH245: PinoutSpecificationsSupply voltage range, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . .0.5 V to 4.6 VInput voltage range, VI: Except I/O ports (see Note 1) ....
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This SN74ALVCH245 octal bus transceiver is designed for 1.65-V to 3.6-V VCC operation.
The SN74ALVCH245 is designed for asynchronous communication between data buses. The device transmits data from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the direction-control (DIR) input. The output-enable (OE) input can be used to disable the device so the buses are effectively isolated.
To ensure the SN74ALVCH245 high-impedance state during power up or power down, OE should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
Active bus-hold circuitry is provided to hold unused or floating data inputs at a valid logic level.
The SN74ALVCH245 is characterized for operation from 40°C to 85°C.