CD74ACT245 Octal Non-Inverting Bus Transceivers with 3-State Outputs |

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Octal Non-Inverting Bus Transceivers with 3-State Outputs



The ’AC245 and ’ACT245 are octal-bus transceivers that utilize Advanced CMOS Logic technology. They are non-inverting three-state bidirectional transceiver-buffers intended for two-way transmission from "A" bus to "B" bus or "B" bus to "A". The logic level present on the direction input (DIR) determines the data direction. When the output enable input (OE\) is HIGH, the outputs are in the high-impedance state.


  • Buffered Inputs
  • Typical Propagation Delay
    - 4ns at VCC = 5V, TA = 25°C, CL = 50pF
  • Exceeds 2kV ESD Protection per MIL-STD-883, Method 3015
  • SCR-Latchup-Resistant CMOS Process and Circuit Design
  • Speed of Bipolar FAST™/AS/S with Significantly Reduced Power Consumption
  • Balanced Propagation Delays
  • AC Types Feature 1.5V to 5.5V Operation and Balanced Noise Immunity at 30% of the Supply
  • ±24mA Output Drive Current
    - Fanout to 15 FAST™ ICs
    - Drives 50 Transmission Lines
  • Characterized for operation from –40° to 85°C

FAST™ is a Trademark of Fairchild Semiconductor.


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Part number Order Technology Family VCC (Min) (V) VCC (Max) (V) Bits (#) Voltage (Nom) (V) F @ nom voltage (Max) (MHz) ICC @ nom voltage (Max) (mA) tpd @ nom Voltage (Max) (ns) IOL (Max) (mA) IOH (Max) (mA) Rating Operating temperature range (C)
CD74ACT245 Order now ACT     4.5     5.5     8     5     90     0.08     8.7     24     -24     Catalog     -55 to 125    
CD54ACT245 Samples not available ACT     4.5     5.5     8     5     90     0.08     8.7     24     -24     Military     -55 to 125