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Features

  • A and C speeds
  • Low input and output leakage ≤1µA (max.)
  • CMOS power levels
  • True TTL input and output compatibility
  • VOH = 3.3V (typ.)
  • VOL = 0.3V (typ.)
  • High drive outputs (-15mA IOH, 48mA IOL)
  • Meets or exceeds JEDEC standard 18 specifications
  • Power off disable outputs permit "live insertion"
  • Available in 20-pin SOIC and QSOP packages

Description

The IDT74FCT521T is an 8-bit identity comparator that compares two words of up to eight bits each and provides a low output when the two words match bit for bit. The expansion input IA = B also serves as an active low enable input. The 74FCT521T operates at -40 °C to +85 °C.

Parameters

AttributesValue
FunctionComparator
Pkg. CodePCG20, PSG20
Temp. Range (°C)-40 to 85°C
Bus Width (bits)8
Core Voltage (V)5
Speed GradeA, C

Package Options

Pkg. TypePkg. Dimensions (mm)Lead Count (#)Pitch (mm)
QSOP8.7 x 3.8 x 1.47200.64
SOIC12.8 x 7.6 x 2.34201.27
Part NumberStatusSamplesStockPackageBudgetary Price (USD)Lead Count (#)Temp. GradePb (Lead) FreeCarrier TypeMoisture Sensitivity Level (MSL)Country of AssemblyCountry of Wafer Fabrication
74FCT521ATQGActiveAvailableIn StockQSOP1ku | $1.2320#CYesTube1TAIWANTAIWAN, USA
74FCT521ATQG8ActiveN/AIn StockQSOP1ku | $1.2320#CYesReel1TAIWANTAIWAN, USA
74FCT521ATSOGActiveAvailableIn StockSOIC1ku | $1.2320#CYesTube1TAIWANTAIWAN, USA
74FCT521ATSOG8ActiveN/AIn StockSOIC1ku | $1.2320#CYesReel1TAIWANTAIWAN, USA
74FCT521CTQGActiveAvailableOut of StockQSOP1ku | $1.2320#CYesTube1TAIWANTAIWAN, USA
74FCT521CTSOG8ActiveN/AIn StockSOIC1ku | $1.2320#CYesReel1TAIWANTAIWAN, USA
74FCT521CTQG8ObsoleteN/AOut of StockQSOP20#CYesReel1
74FCT521CTSOGObsoleteN/AIn StockSOIC20#CYesTube1