74HCT373D

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74HCT373D

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  • ManufacturerNexperia

  • Mfr. Part #74HCT373D

  • In Stock20447

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Specifications

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Overview

Description

The 74HCT373D is an octal transparent D-type latch with 3-state outputs, commonly used in digital circuits for temporary data storage and manipulation. It is part of the 74HCT series, which operates with high-speed CMOS technology and is compatible with TTL (Transistor-Transistor Logic) input levels, making it suitable for interfacing with both CMOS and TTL logic families.
The device features eight latches with individual data input (D) and output (Q) lines, and a common latch enable (LE) and output enable (OE) control. When the latch enable is active, the data present at the D inputs is transferred to the Q outputs. The outputs can be placed in a high-impedance state with the output enable control, allowing for bus interfacing or multiplexing applications.
The 74HCT373D is typically used in applications where temporary storage of data is required, such as in registers, bus drivers, and data buffering. It operates within a voltage range of 4.5V to 5.5V and is commonly packaged in surface-mount or through-hole configurations.

Equivalent

The 74HCT373D is a high-speed CMOS octal transparent latch with 3-state outputs. Equivalent products include the SN74HCT373N from Texas Instruments, the MC74HCT373 from ON Semiconductor, and the CD74HCT373 from Texas Instruments. All these chips perform similar functions, though variations in manufacturer specifications might exist. Always verify electrical characteristics and pin configurations when substituting.

Features

The 74HCT373D is a high-speed CMOS logic device featuring an octal D-type transparent latch with 3-state outputs. Key features include:
1. Octal Latch Configuration: It has eight latches, which makes it suitable for a wide range of applications requiring temporary data storage and transfer.
2. 3-State Outputs: The outputs can be set to high, low, or high-impedance state, allowing for easy interfacing with other bus-oriented systems.
3. High-Speed Operation: Designed for fast data processing applications, it operates effectively at varying frequencies.
4. Compatibility: Compatible with TTL logic levels, making it easy to integrate into existing systems that utilize TTL devices.
5. Supply Voltage: Operates typically at 5V, consistent with most standard digital circuits.
6. Low Power Consumption: Being part of the HCT logic family, it offers reduced power consumption compared to traditional TTL devices.
7. Latch Enable Control: The device features a latch enable input, allowing data to be latched or transparent based on control logic.
These features make the 74HCT373D suitable for applications in computing, communication, and other digital systems.

Pinout

The 74HCT373D is an octal D-type transparent latch with 3-state outputs. It is housed in a 20-pin plastic dual in-line package (DIP). The device is designed to store and buffer data and features the following pin configuration:
1. Pin Count: 20 pins.
2. Pin Functions:
- Pins 1-8: Data inputs (D0-D7).
- Pin 9: Ground (GND).
- Pin 10: Output enable (OE), active low.
- Pin 11-18: 3-state outputs (Q0-Q7).
- Pin 19: Latch enable (LE), active high.
- Pin 20: Positive supply voltage (VCC).
The latch is transparent when LE is high, allowing the data inputs to pass directly to the outputs. When LE is low, the data present at the inputs is latched, and the outputs will reflect this data until the latch is enabled again. The OE pin, when high, disables the outputs, putting them in a high-impedance state, allowing for bus line sharing.

Manufacturer

The 74HCT373D is manufactured by Nexperia. Nexperia is a global semiconductor company that specializes in the production of discrete components such as diodes and transistors, as well as logic and MOSFET devices. As a leading supplier in the semiconductor industry, Nexperia focuses on efficiency and innovation, delivering high-quality, reliable products for a wide range of applications including automotive, industrial, computing, and consumer electronics. The company was originally part of NXP Semiconductors but became an independent entity in 2017, continuing to expand its footprint in the semiconductor market.

Application

The 74HCT373D is an octal D-type transparent latch with 3-state outputs, commonly used in digital circuits. Its application areas include microprocessor and microcontroller interfaces for temporary data storage, data buffering, and bus driving. It is often employed in systems requiring latch operations like memory address latching, input/output port latching, and data synchronization. Additionally, due to its high-speed and low-power characteristics, it is suitable for use in telecommunications, instrumentation, and consumer electronics for managing data flow and ensuring signal integrity. The 74HCT373D helps improve data handling efficiency in various digital systems.

Package

The 74HCT373D is a surface-mount device (SMD) and comes in a small outline integrated circuit (SOIC) package.