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M74HCT573B1 Specifications

Detailed technical information and Application Scenarios

Product Details

PartNumberManufactorQuantityAvailability
M74HCT573B1ST100Yes

M74HCT573B1** is a high-speed CMOS octal D-type transparent latch manufactured by **STMicroelectronics (ST)**.

The M74HCT573B1 is a high-speed CMOS octal D-type transparent latch manufactured by STMicroelectronics (ST).

Specifications:

  • Technology: High-Speed CMOS (HCT)
  • Supply Voltage Range: 4.5V to 5.5V
  • Input Compatibility: TTL (5V tolerant)
  • Output Current: ±6mA
  • Propagation Delay: 13ns (typical)
  • Operating Temperature Range: -40°C to +125°C
  • Package Options: SO-20, TSSOP-20
  • Latch Function: 3-state outputs, transparent when latch enable (LE) is high
  • Output Control: Active-low output enable (OE)

Descriptions:

The M74HCT573B1 is an octal D-type latch with 3-state outputs designed for bus-oriented applications. It features transparent latches, meaning the outputs follow the inputs while the latch enable (LE) is high. When LE goes low, the data is latched. The outputs can be disabled using the output enable (OE) pin, allowing multiple devices to share a common bus.

Features:

  • Octal D-type transparent latch
  • 3-state outputs for bus interfacing
  • TTL-compatible inputs
  • High noise immunity
  • Low power consumption
  • ESD protection (HBM: 2kV, MM: 200V)
  • Compliant with JEDEC standard No. 7A

This device is commonly used in memory address latching, data buffering, and bus interface applications.

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