54ACT74:Rad-Hard Dual D-Type Flip-Flop With Preset & Clear

The 54AC and 54ACT series represent over 60 product types with different high-speed CMOS functions, specifically designed to meet the radiation requirements of the aerospace industry. They include a large set of gates, flip-flops, multiplexers, counters, bus interfaces, and several other functions. Their radiation hardness, immunity from single event latch-up (SEL) and single event upset (SEU), and housing in hermetic packages make them suitable for the most difficult environmental conditions. The complete specification for each type is available from the DSCC web site: www.dscc.dla.mil. STMicroelectronics guarantees full compliance of qualified parts with these DSCC specifications.

Key Features

  • AC: 2 to 6 V operating voltage
  • ACT: 4.5 to 5.5 V operating voltage
  • High speed TPD = 4.5 ns (typ.)
  • Low DC power dissipation: 8 μA max.
  • Symmetrical 24 mA output characteristics
  • High noise immunity: 28% of min. VCC
  • Power-down input protection
  • Balanced propagation delays
  • Improved electrical latch-up immunity
  • Controlled rise and fall times
  • Operating temperature: - 55 to 150 °C
  • Hermetic packages
  • Rad-hard: 300 kRad TID at any Mil1019 dose rates
  • SEL immune to 110 MeV/cm²/mg LET ions
  • RHA QML-V qualified
  • Same die and electrical specification for engineering and flight models
Product Specifications
DescriptionVersionSize
DB0998: Rad-hard advanced high-speed 5 V CMOS logic series5.01 MB
Technical Notes & Articles
DescriptionVersionSize
TN1015: 54ACT74 radiation report1.21 MB
TN1181: Engineering Model quality level1.1142 KB
Selection Guides
DescriptionVersionSize
Aerospace and Hi-rel - ESCC, JANS & QML products1.02 MB
Sample & Buy
Part NumberSMD PIN/Detailed SpecQuality LevelEPPLOther (comments)Hi-Rel PackageLead FinishPacking TypePackage: Product MarkingMass (gr)ECCN (EU)ECCN (US)Country of Origin
RHFACT74K1-Engineering Model--Flat-14GoldCarrier TapeRHFACT74K10.7NECEAR99FRANCE
RHFACT74D03V5962F87525 03VCCQML-V Flight--DIL-14GoldCarrier Tape5962F87525 03VCC2.2NECEAR99FRANCE
RHFACT74K01V5962F87525 03VXCQML-V Flight--Flat-14GoldCarrier Tape5962F87525 03VXC0.7NECEAR99FRANCE
RHFACT74K02V5962F87525 03VXAQML-V Flight--Flat-14Solder DipCarrier Tape5962F87525 03VXA0.7NECEAR99FRANCE
Quality & Reliability
Part NumberPackageGradeRoHS Compliance GradeMaterial Declaration**
RHFACT74K1FLAT14 QML narrow EMIndustrialN/A
RHFACT74D03VDIL14 FPIndustrialN/A
RHFACT74K01VFLAT14 QML narrow FPIndustrialN/A
RHFACT74K02VFLAT14 QML narrow FPIndustrialN/A
Rad-hard advanced high-speed 5 V CMOS logic series 54ACT00
54ACT74 radiation report 54ACT74
Engineering Model quality level 1N5822U
Engineering Model quality level 1N5822U