54VCXH163245:Rad-hard 16-bit transceiver, 1.8 V to 3.3 V bi-directional level shifter

The 54VCXH163245 is a rad-hard advanced high-speed CMOS, Schmitt trigger, 16-bit bidirectional, multi-purpose transceiver with 3-state outputs and cold sparing.

Designed for use as an interface between a 3.3 V bus and a 1.8 V bus in mixed 3.3 V/1.8 V supply systems, it achieves high-speed operation while maintaining the CMOS low power dissipation.

All pins have cold spare buffers to change them to high impedance when VDD is tied to ground.

This IC is intended for two-way asynchronous communication between data buses. The direction of data transmission is determined by the nDIR inputs.

Key Features

  • Dual supply bidirectional level shifter
  • Voltage range from 1.6 V to 3.6 V
  • Separated enable pin for 3-state output
  • Internal 26 Ω limiting resistor on each I/O
  • Bus hold
  • Fail safe
  • Cold spare
  • Hermetic package
  • 300 krad (Si) at any Mil1019 dose rate
  • SEL immune to 110 MeV.cm2 /mg LET ions
  • QML-V qualification on-going
Product Specifications
DescriptionVersionSize
DS11681: Rad-hard 16-bit transceiver, 1.8 V to 3.3 V bidirectional level shifter3.0785 KB
Application Notes
DescriptionVersionSize
AN2149: Integrated bus hold circuitry2.0353 KB
Technical Notes & Articles
DescriptionVersionSize
TN1181: Engineering Model quality level1.1142 KB
HW Model & CAD Libraries
DescriptionVersionSize
54VCXH163245 beginning of life IBIS model (.ibs)1.028 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
RHFXH163245K01V5962F1120701VXCQML-V Flight--Flat-48GoldCarrier Tape5962F1120701VXC1.5NECEAR99FRANCE
RHFXH163245K1-Engineering Model--Flat-48GoldCarrier TapeRHFXH163245K11.5NECEAR99FRANCE
Quality & Reliability
Part NumberPackageGradeRoHS Compliance GradeMaterial Declaration**
RHFXH163245K01VFLAT48 FPIndustrialN/A
RHFXH163245K1FLAT48 EMIndustrialN/A
Rad-hard 16-bit transceiver, 1.8 V to 3.3 V bidirectional level shifter 54VCXH163245
Integrated bus hold circuitry 54VCXH163245
Engineering Model quality level 1N5822U
Engineering Model quality level 54VCXH163245
Engineering Model quality level 1N5822U