MC74ACT74: Dual D-Type Positive Edge-Triggered Flip-Flop

The MC74AC74/74ACT74 is a dual D-type flip-flop with Asynchronous Clear and Set inputs and complementary (Q,Q) outputs. Information at the input is transferred to the outputs on the positive edge of the clock pulse. Clock triggering occurs at a voltage level of the clock pulse and is not directly related to the transition time of the positive-going pulse. After the Clock Pulse input threshold voltage has been passed, the Data input is locked out and information present will not be transferred to the outputs until the next rising edge of the Clock Pulse input. Asynchronous Inputs: LOW input to SD (Set) sets Q to HIGH level LOW input to CD (Clear) sets Q to LOW level Clear and Set are independent of clock Simultaneous LOW on CD and SD makes both Q and Q HIGH

Features
  • Outputs Source/Sink 24 mA
  • ACT74 Has TTL Compatible Inputs CD1SD2 D1Q1CP2 Q2
  • Pb-Free Packages Are Available
Packages
Application Notes (1)
Document TitleDocument ID/SizeRevisionRevision Date
Ratings, Specifications and Waveforms for FACT Data SheetsAND8277/D (68.0kB)0
Data Sheets (1)
Document TitleDocument ID/SizeRevisionRevision Date
Dual D-Type Positive Edge-Triggered Flip-FlopMC74AC74/D (97kB)8
Simulation Models (2)
Document TitleDocument ID/SizeRevisionRevision Date
IBIS Model for MC74ACT74DMC74ACT74D.IBS (13.0kB)0
IBIS Model for MC74ACT74NMC74ACT74N.IBS (13.0kB)0
Package Drawings (2)
Document TitleDocument ID/SizeRevision
SOIC-14 NB751A-03 (34.3kB)L
TSSOP-14 WB948G-01 (39.6kB)C
Order Information
ProductStatusCompliancePackageMSL*ContainerBudgetary Price/Unit
MC74ACT74DGActivePb-free Halide freeSOIC-14751A-031Tube55$0.1735
MC74ACT74DR2GActivePb-free Halide freeSOIC-14751A-031Tape and Reel2500$0.1735
MC74ACT74DTR2GActivePb-free Halide freeTSSOP-14948G-011Tape and Reel2500$0.1911
Specifications
ProductTypeChannelsVCC Min (V)VCC Max (V)tpd Max (ns)IO Max (mA)
MC74ACT74DGD-Type24.55.51024
MC74ACT74DR2GD-Type24.55.51024
MC74ACT74DTR2GD-Type24.55.51024
Dual D-Type Positive Edge-Triggered Flip-Flop (97kB) MC74ACT74
Ratings, Specifications and Waveforms for FACT Data Sheets MC74ACT257
IBIS Model for MC74ACT74D MC74ACT74
IBIS Model for MC74ACT74N MC74ACT74
SOIC-14 NB NLSX5014
TSSOP-14 WB NLSX5014