SN74ACT240DBR

text.skipToContent text.skipToNavigation

SN74ACT240DBR

Octal Buffers/Drivers With 3-State Outputs

Packaging

Package | PIN: DB | 20
Temp: I (-40 to 85)
Carrier: Cut Tape
Qty Price
1-9 $0.63
10-24 $0.55
25-99 $0.50
100-249 $0.43
250-499 $0.39
500-749 $0.30
750-999 $0.23
1000+ $0.20

Features

  • 4.5-V to 5.5-V VCC Operation
  • Inputs Accept Voltages to 5.5 V
  • Max tpd of 8.5 ns at 5 V
  • Inputs Are TTL Compatible

Texas Instruments  SN74ACT240DBR

These octal buffers and line drivers are designed specifically to improve the performance and density of 3-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters.

The ’ACT240 devices are organized as two 4-bit buffers/drivers with separate output-enable (OE)\ inputs. When (OE)\ is low, the device passes inverted data from the A inputs to the Y outputs. When (OE)\ is high, the outputs are in the high-impedance state.

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.