MC74VHC373: Octal D-Type Latch with 3-State Output

The MC74VHC373 is an advanced high speed CMOS octal latch with 3-state output fabricated with silicon gate CMOS technology. It achieves high speed operation similar to equivalent Bipolar Schottky TTL while maintaining CMOS low power dissipation. This 8-bit D-type latch is controlled by a latch enable input and an output enable input. When the output enable input is high, the eight outputs are in a high impedance state. The internal circuit is composed of three stages, including a buffer output which provides high noise immunity and stable output. The inputs tolerate voltages up to 7V, allowing the interface of 5V systems to 3V systems.

Features
  • High Speed: tPD = 5.0ns (Typ) at VCC = 5V
  • Low Power Dissipation: ICC = 4µA (Max) at TA = 25 C
  • High Noise Immunity: VNIH = VNIL = 28% VCC
  • Power Down Protection Provided on Inputs
  • Balanced Propagation Delays
  • Designed for 2V to 5.5V Operating Range
  • Low Noise: VOLP = 0.9V (Max)
  • Pin and Function Compatible with Other Standard Logic Families
  • Latchup Performance Exceeds 300mA
  • ESD Performance: HBM > 2000V; Machine Model > 200V
  • Chip Complexity: 186 FETs or 46.5 Equivalent Gates
  • Pb-Free Packages are Available*
Data Sheets (1)
Document TitleDocument ID/SizeRevisionRevision Date
Octal D-Type Latch with 3-State OutputMC74VHC373/D (76kB)8
Package Drawings (2)
Document TitleDocument ID/SizeRevision
SOIC-20 WB751D-05 (36.3kB)H
TSSOP-20 WB948E-02 (39.7kB)D
Order Information
ProductStatusCompliancePackageMSL*ContainerBudgetary Price/Unit
MC74VHC373DTR2GActivePb-free Halide freeTSSOP-20948E-021Tape and Reel2500$0.2667
MC74VHC373DWR2GActivePb-free Halide freeSOIC-20W751D-053Tape and Reel1000$0.2667
Specifications
ProductTypeChannelsVCC Min (V)VCC Max (V)tpd Max (ns)IO Max (mA)
MC74VHC373DTR2GLatch825.59.28
MC74VHC373DWR2GLatch825.59.28
Octal D-Type Latch with 3-State Output (76kB) MC74VHC373
TSSOP-20 WB NLSX3018
SOIC-20 WB NLSX3018