CD74HCT541E

1. Description

HC540 and CD74HCT541E are reverse octal buffers Three-state output line driver and line driver and their functions Drive 15 LSTTL loads. HC541 and HCT541 are non-inverting eight-way buffers and line drivers with three-state outputs, which can drive 15 LSTTL loads. Output enable (OE1) and (OE2) control the three-state output. If there is OE1 or OE2 is high, the output will be in a high impedance state. Both OE1 and OE2 must be low to output data.

2. Features

    1. HC540, CD74HCT540 . . . . . . . . . . . . . . . . . . . Inverting

    2. Buffered Inputs

    3. Three-State Outputs

    4. Bus Line Driving Capability

    5. Typical Propagation Delay = 9ns at VCC = 5V, CL = 15pF, TA = 25oC

    6. Fanout (Over Temperature Range)

        - Standard Outputs . . . . . . . . . . . . . . . 10 LSTTL Loads

        - Bus Driver Outputs . . . . . . . . . . . . . 15 LSTTL Loads

    7. Wide Operating Temperature Range . . . -55oC to 125oC

    8. Balanced Propagation Delay and Transition Times

    9. Significant Power Reduction Compared to LSTTL Logic ICs

  10. HC Types

        - 2V to 6V Operation

        - High Noise Immunity: NIL = 30%, NIH = 30% of VCC at VCC = 5V

  11. HCT Types

        - 4.5V to 5.5V Operation

        - Direct LSTTL Input Logic Compatibility, VIL= 0.8V (Max), VIH = 2V (Min)

        - CMOS Input Compatibility, Il ≤ 1µA at VOL, VOH

3. Pinouts

4. Functional Diagram

5. Packaging Information