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aip74hc/hct573
octal d-type transparent latch; 3-state

the aip74hc/hct573 is an 8-bit d-type transparent latch with 3-state outputs. the device features latch enable (le) and output enable (oe()) inputs. when le is high, data at the inputs enter the latches. in this condition the latches are transparent, a latch output will change each time its corresponding d-input changes. when le is low the latches store the information that was present at the inputs a set-up time preceding the high-to-low transition of le. a high onoe() causes the outputs to assume a high-impedance off-state. operation of theoe() input does not affect the state of the latches. inputs include clamp diodes. this enables the use of current limiting resistors to interface inputs to voltages in excess of vcc.


  • main features product

  • product documents

  • input levels:

    for aip74hc573: cmos level

    for aip74hct573: ttl level

  • inputs and outputs on opposite sides of package allowing easy interface with microprocessors

  • useful as input or output port for microprocessors and microcomputers

  • 3-state non-inverting outputs for bus-oriented applications

  • common 3-state output enable input

  • specified from -40℃ to 105℃

  • packaging information: dip20/sop20/tssop20


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