MC74AC574: Octal D Flip-Flop with 3-State Outputs

The MC74AC574/74ACT574 is a high-speed, low power octal flip-flop with a buffered common Clock (CP) and a buffered common Output Enable (OE). The information presented to the D inputs is stored in the flip-flops on the LOW-to-HIGH Clock (CP) transition. The MC74AC574/74ACT574 is functionally identical to the MC74AC374/ 74ACT374 except for the pinouts.

Features
  • Inputs and Outputs on Opposite Sides of Package Allowing Easy Interface with Microprocessors
  • Useful as Input or Output Port for Microprocessors
  • Functionally Identical to MC74AC374/74ACT374
  • 3-State Outputs for Bus-Oriented Applications
  • Outputs Source/Sink 24 mA
  • ACT574 Has TTL Compatible Inputs
  • Pb-Free Packages are Available
Simulation Models (4)
Document TitleDocument ID/SizeRevisionRevision Date
IBIS Model for MC74AC574DW_33MC74AC574DW_33.IBS (9.0kB)0
IBIS Model for MC74AC574DW_5MC74AC574DW_5.IBS (6.0kB)0
IBIS Model for MC74AC574N_33MC74AC574N_33.IBS (9.0kB)0
IBIS Model for MC74AC574N_5MC74AC574N_5.IBS (6.0kB)0
Package Drawings (2)
Document TitleDocument ID/SizeRevision
SOIC-20 WB751D-05 (36.3kB)H
TSSOP-20 WB948E-02 (39.7kB)D
Data Sheets (1)
Document TitleDocument ID/SizeRevisionRevision Date
Octal D-Type Flip Flop with 3-State OutputsMC74AC574/D (115.0kB)8
Order Information
ProductStatusCompliancePackageMSL*ContainerBudgetary Price/Unit
MC74AC574DTR2GActivePb-free Halide freeTSSOP-20948E-021Tape and Reel2500$0.2267
MC74AC574DWGActivePb-free Halide freeSOIC-20W751D-053Tube38$0.2667
MC74AC574DWR2GActivePb-free Halide freeSOIC-20W751D-053Tape and Reel1000$0.2667
Specifications
ProductTypeChannelsVCC Min (V)VCC Max (V)tpd Max (ns)IO Max (mA)
MC74AC574DTR2GD-Type8269.524
MC74AC574DWGD-Type8269.524
MC74AC574DWR2GD-Type8269.524
Octal D-Type Flip Flop with 3-State Outputs (115.0kB) MC74ACT574
IBIS Model for MC74AC574DW_33 MC74AC574
IBIS Model for MC74AC574DW_5 MC74AC574
IBIS Model for MC74AC574N_33 MC74AC574
IBIS Model for MC74AC574N_5 MC74AC574
TSSOP-20 WB NLSX3018
SOIC-20 WB NLSX3018