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Manufacturer Part #


74LCX Series 2 to 3.6 V Low-Voltage CMOS Octal Transparent Latch - TSSOP-20

ECAD Model:
Mfr. Name: onsemi
Standard Pkg:
Product Variant Information section
Date Code: 1819
Product Specification Section
Technical Attributes
Attributes Table
Logic Circuit: D-Type Latch
Family: A/LVC/E/H/U
No of Functions / Channels: 1
Output Characteristics: 3-ST
Supply Voltage-Nom: 2|3.6V
Package Style:  TSSOP-20
Mounting Method: Surface Mount
Features & Applications

The MC74LCX373 is a high performance, non-inverting octal transparent latch operating from a 2.3 to 3.6 V supply. High impedance TTL compatible inputs significantly reduce current loading to input drivers while TTL compatible outputs offer improved switching noise performance. A VI specification of 5.5 V allows MC74LCX373 inputs to be safely driven from 5 V devices.

The MC74LCX373 contains 8 D-type latches with 3-state outputs. When the Latch Enable (LE) input is HIGH, data on the Dn inputs enters the latches. In this condition, the latches are transparent, i.e., a latch output will change state each time its D input changes. When LE is LOW, the latches store the information that was present on the D inputs a setup time preceding the HIGH-to-LOW transition of LE. The 3-state standard outputs are controlled by the Output Enable (OEbar) input. When OEbar is LOW, the standard outputs are enabled. When OEbar is HIGH, the standard outputs are in the high impedance state, but this does not interfere with new data entering into the latches.


  • Designed for 2.3 to 3.6 V VCC Operation
  • 5 V Tolerant - Interface Capability With 5 V TTL Logic
  • Supports Live Insertion and Withdrawal
  • IOFF Specification Guarantees High Impedance When VCC = 0 V
  • LVTTL Compatible
  • LVCMOS Compatible
  • 24 mA Balanced Output Sink and Source Capability
  • Near Zero Static Supply Current in all Three Logic States (10 µA) Substantially Reduces System Power Requirements
  • Latchup Performance Exceeds 500 mA
  • ESD Performance: Human Body Model >2000 V Machine Model >200 V
Pricing Section
Global Stock:
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Factory Stock:Factory Stock:
Factory Lead Time:
25 Weeks
Minimum Order:
Multiple Of:
Web Price
Product Variant Information section