54ACT244:Rad-Hard Octal Bus Buffer 3-state

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
TN1181: Engineering Model quality level1.1142 KB
HW Model & CAD Libraries
DescriptionVersionSize
54ACT244 beginning of life IBIS model (.ibs)2.014 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
RHFACT244K01V5962F8776003VXCQML-V Flighttrue-Flat-20GoldCarrier Tape5962F8776003VXC0.9NECEAR99FRANCE
RHFACT244K02V5962F8776003VXAQML-V Flighttrue-Flat-20Solder DipCarrier Tape5962F8776003VXA0.9NECEAR99FRANCE
RHFACT244K1-Engineering Model--Flat-20GoldCarrier TapeRHFACT244K10.9NECEAR99FRANCE
Quality & Reliability
Part NumberPackageGradeRoHS Compliance GradeMaterial Declaration**
RHFACT244K01VFLAT20 QML FPIndustrialN/A
RHFACT244K02VFLAT20 QML FPIndustrialN/A
RHFACT244K1FLAT CER MILIndustrialN/A
Rad-hard advanced high-speed 5 V CMOS logic series 54ACT00
Engineering Model quality level 1N5822U
Engineering Model quality level 54ACT244
Engineering Model quality level 1N5822U