74HC373D

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74HC373D

BUS DRIVER, HC/UH SERIES, 8-BIT

  • Manufacturer
  • Mfr. Part #74HC373D
  • Package SOIC-14
  • Datasheet
  • In Stock5165

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Specifications

Package Bulk
Series 74HC
ProductStatus Active
LogicType D-Type Transparent Latch
Circuit 1:8
OutputType Tri-State
Voltage-Supply 2V ~ 6V
IndependentCircuits 1
DelayTime-Propagation 30ns
Current-OutputHighLow 7.8mA, 7.8mA
OperatingTemperature -40°C ~ 125°C
MountingType Surface Mount
Package/Case 20-SOIC (0.295, 7.50mm Width)

Overview

Description

The 74HC373D is an octal transparent latch designed for use in digital circuits. It features eight data inputs (D0-D7) and eight outputs (Q0-Q7), allowing it to hold and transfer data when enabled. The device operates with a wide voltage range (2V to 6V) and is compatible with TTL logic levels.
Key functionalities include:
- Transparent Latch: Data on the inputs is transferred to the outputs when the enable (E) pin is active. When E is low, the outputs hold the last latched state.
- Data Control: It has a clear (CLR) input that resets all outputs to low when activated.
- High-Speed Operation: The HC series offers improved speed and reduced power consumption compared to older series like the 74LS.
- Package Options: Commonly available in DIP and surface-mount packages.
This device is often used in applications requiring temporary data storage, such as in digital signal processing, memory interfaces, and general-purpose data handling.

Features

The 74HC373D is an octal transparent latch with a tri-state output, widely used in digital circuits. Key features include:
1. Functionality: It captures data on the rising edge of the clock input (LE - latch enable) and holds the data until the next clock pulse.
2. Data Input: It has 8 data inputs (D0-D7) and 8 corresponding outputs (Q0-Q7).
3. Tri-State Outputs: Outputs can be disabled to prevent loading on the bus, allowing for multiple devices to share the same data lines.
4. High-Speed Operation: Operates at high speeds (up to 6 MHz) and supports a wide voltage range (2V to 6V).
5. Low Power Consumption: Designed for low power usage, making it suitable for battery-operated devices.
6. TTL Compatibility: Compatible with TTL logic levels, facilitating integration into various systems.
7. Pin Configuration: Available in a 20-pin DIP or SOIC package for flexibility in design.
Overall, the 74HC373D is ideal for data storage, buffering, and interfacing applications in digital electronics.

Package

The 74HC373D is typically packaged in a 20-pin Dual In-line Package (DIP), but it can also be found in surface-mount packages like TSSOP. The "D" suffix indicates a plastic DIP package.

Pinout

The 74HC373D is an octal transparent latch with 3-state outputs. It features a total of 20 pins.
Pin Functions:
1. 1-8 (D0-D7): Data inputs.
2. 9 (GND): Ground.
3. 10 (OE): Output Enable; active low (when low, outputs are enabled).
4. 11 (LE): Latch Enable; when high, data is latched on the rising edge of LE.
5. 12-19 (Q0-Q7): Data outputs corresponding to inputs D0-D7.
6. 20 (Vcc): Power supply (+2V to +6V).
The device latches data present at the inputs when LE is high and maintains the output state until LE is triggered again. The outputs can be put into a high-impedance state using OE. This makes the 74HC373D useful in data storage and buffer applications.

Manufacturer

The 74HC373D is manufactured by Texas Instruments (TI), a leading global semiconductor company. Texas Instruments specializes in designing and manufacturing a wide range of semiconductor products, including analog and digital integrated circuits. The company serves various sectors, including automotive, industrial, communications, and consumer electronics. TI is well-known for its innovations in microcontrollers, processors, and other electronic components, making it a key player in the electronics industry. Established in 1930 and headquartered in Dallas, Texas, Texas Instruments has a long history of contributing to advancements in technology and is recognized for its commitment to quality and reliability in its products.

Application

The 74HC373D is an octal transparent latch used in various digital applications. Key application areas include data buffering, temporary storage, and interface applications between microprocessors and peripheral devices. It is commonly utilized in bus-oriented systems, parallel data transmission, and for controlling data flow in digital circuits, such as in memory management and signal processing tasks. Its ability to hold data while allowing simultaneous read and write operations makes it suitable for high-speed data handling and logic circuit designs.

Equivalent

Equivalent products to the 74HC373D include the 74HCT373, 74AC373, 74ACT373, and the 74LS373. These chips are octal transparent latches with similar functionality, but may differ in voltage levels, power consumption, and propagation delay. Always verify specific requirements and characteristics to ensure compatibility.

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