Andrew
Andrew Content Marketer
On Jul 15, 2025

74HC373N – Octal Transparent Latch by NXP for Parallel Data Storage

The Latches 74HC373N by NXP are high-speed silicon gate CMOS devices designed to store and hold parallel data in digital systems. With an octal D-type transparent latch configuration and 3-state outputs, this IC is ideal for temporary data storage, bus driving, buffering, and memory address latching in microcontroller and processor-based applications.

In this blog, we’ll explore technical specs, key features, use cases, connection tips, and how to purchase or download the datasheet from Xon Electronics.


Technical Specifications of 74HC373N

  • Manufacturer: NXP

  • Part Number: 74HC373N

  • Type: Octal D-Type Transparent Latch with 3-State Outputs

  • Logic Family: HC (High-Speed CMOS)

  • Supply Voltage Range: 2V to 6V

  • Input Compatibility: CMOS, TTL

  • Number of Channels: 8 (Octal)

  • Package Type: DIP-20

  • Propagation Delay: ~13ns at 5V

  • Operating Temperature: -40°C to +85°C

  • Category: Logic ICs, Latches by NXP

With robust performance and versatile features, the 74HC373N Latches by NXP are ideal for logic interfacing in computers, embedded systems, and digital controllers.


Key Features of 74HC373N

  • Octal Data Storage (8-bit) – Stores 8 bits of data simultaneously

  • Transparent Latch Function – Allows real-time data transfer during enable

  • 3-State Outputs – Supports bus-oriented systems and multiplexing

  • TTL-Compatible Inputs – Easy interface with legacy and mixed logic levels

  • Standard DIP-20 Package – Great for prototyping and breadboard use

Thanks to its efficient architecture, Latches by NXP are essential in systems requiring temporary data retention, such as microprocessor address latching or I/O buffering.


Applications of 74HC373N Latch

  • Microcontroller and Processor Address Latching

  • Bus Driver Circuits

  • Data Storage in Timing Control Systems

  • Memory Control Interfaces

  • General Digital Signal Processing

Because of their high-speed operation and compatibility with modern logic levels, the 74HC373N Latches by NXP are widely used in digital electronics and embedded systems design.


Connection Guide

Here’s how to use the 74HC373N in a basic logic setup:

[Step 1] Connect data lines D0–D7 to input pins 3–6 and 11–14
[Step 2] Use the LE (Latch Enable) pin to control when data is latched
[Step 3] Enable output via the OE (Output Enable) pin for bus access
[Step 4] Power the chip with Vcc (pin 20) and connect GND (pin 10)
[Step 5] Confirm logic states using LEDs or a logic analyzer during operation

Easy to configure and integrate, Latches by NXP deliver dependable timing and data retention in digital systems.


Use Case Scenario – Microprocessor Address Bus Control

Scenario: A digital designer needed to hold a memory address output from a microcontroller while switching to a data bus.

Problem: Real-time switching caused unstable behavior during transitions.

Solution: The 74HC373N Latches by NXP provided address latching with transparent logic and tri-state outputs.

Result: Smooth and reliable address control with simplified timing architecture.

This demonstrates how Latches by NXP enhance system stability in address/data separation and bus interfacing.


Download Datasheet for 74HC373N

Need pinouts, electrical characteristics, or logic timing diagrams?

[Download 74HC373N Datasheet from Xon Electronics]


Why Buy from Xon Electronics?

Xon Electronics offers a full range of Latches by NXP, including the 74HC373N model:

  • 100% Authentic NXP Components
  • Global Shipping – USA, India, Australia, Europe & more
  • In-Stock & Ready for Fast Dispatch
  • Expert Technical Support
  • Secure, Easy Checkout for All Orders

Order now at www.xonelec.com and build stable digital systems using Latches by NXP.


Conclusion

The 74HC373N Latches by NXP offer an excellent combination of speed, versatility, and reliability for temporary data storage and bus interfacing in digital systems. With 3-state outputs and easy-to-use DIP packaging, Latches by NXP simplify logic design and improve timing precision—available worldwide from Xon Electronics.


FAQs – 74HC373N NXP Latch

Q1. What does the 74HC373N do?
It latches 8-bit data inputs with 3-state output capability.

Q2. What package is it in?
DIP-20 through-hole.

Q3. Is it TTL-compatible?
Yes, fully compatible with TTL and CMOS logic levels.

Q4. Can I use it with microcontrollers?
Absolutely—it’s widely used for address/data bus control.

Q5. Can I order it internationally?
Yes, available at www.xonelec.com with shipping to USA, India, Australia, Europe, and other countries.




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