Part Number : 74AC245
Function : OCTAL BUS TRANSCEIVER WITH 3-STATE OUTPUTS
Manufacturers : Texas Instruments
2-V to 6-V VccOperation
Inputs Accept Voltages to 6 V
Max tpdof 7 ns at 5 V
The ’AC245 octal bus transceivers are designed
for asynchronous two-way communication
between data buses. The control-function
implementation minimizes external timing
When the output-enable (OE) is low, the device
passes noninverted 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.
A high on OEdisables the device so that the buses
are effectively isolated.
To ensure the high-impedance state during power
up or power down, OEshould be tied to VCC
through a pullup resistor; the minimum value of
the resistor is determined by the current-sinking
capability of the driver.
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