SN74ACT245DBR

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SN74ACT245DBR

Octal Bus Transceivers With 3-State Outputs

Packaging

Package | PIN: DB | 20
Temp: I (-40 to 85)
Carrier: Cut Tape
Qty Price
1-9 $0.74
10-24 $0.66
25-99 $0.61
100-249 $0.52
250-499 $0.48
500-749 $0.39
750-999 $0.32
1000+ $0.28

Features

  • 4.5-V to 5.5-V VCC Operation
  • Inputs Accept Voltages to 5.5 V
  • Max tpd of 8 ns at 5 V
  • Inputs Are TTL-Voltage Compatible

Texas Instruments  SN74ACT245DBR

These octal bus transceivers are designed for asynchronous two-way communication between data buses. The control-function implementation minimizes external timing requirements.

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 upon the logic level at the direction-control (DIR) input. A high on (OE)\ disables the device so that the buses are effectively isolated.

To ensure the 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.