MM74HC373WM

Product Overview

• Category: Integrated Circuit (IC)
• Use: Data storage and retrieval
• Characteristics: High-speed, octal transparent latch with 3-state outputs
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: A latch that can store and retrieve data quickly
• Packaging/Quantity: Available in reels or tubes, quantity varies based on supplier

Specifications

• Supply Voltage Range: 2V to 6V
• High-Level Input Voltage: 2V
• Low-Level Input Voltage: 0.8V
• High-Level Output Voltage: 4.2V
• Low-Level Output Voltage: 0.5V
• Maximum Operating Frequency: 80MHz
• Number of Latches: 8
• Output Type: 3-state

Detailed Pin Configuration

The MM74HC373WM has a total of 20 pins, which are divided as follows:

• Pin 1: Output Enable (OE)
• Pins 2-9: Data Inputs (D0-D7)
• Pins 10-17: Latch Outputs (Q0-Q7)
• Pin 18: Ground (GND)
• Pin 19: Clock (CLK)
• Pin 20: Supply Voltage (VCC)

Functional Features

• Octal transparent latch: Allows for the storage and retrieval of data on eight separate lines.
• 3-state outputs: Provides the ability to disconnect the output from the bus, allowing multiple devices to share the same bus without interference.
• Output enable (OE) pin: Controls the state of the outputs, enabling or disabling them as needed.
• Clock input (CLK): Triggers the latch to store the data present at the inputs.

Advantages and Disadvantages

Advantages: - High-speed operation: Suitable for applications requiring fast data storage and retrieval. - 3-state outputs: Allows for efficient bus sharing and reduces the number of required pins. - Wide supply voltage range: Can be used in various voltage environments.

Disadvantages: - Limited latch count: Only supports eight latches, which may not be sufficient for certain applications. - SOIC package: May require additional precautions during soldering due to its small size.

Working Principles

The MM74HC373WM operates by using the clock input (CLK) to latch the data present at the inputs (D0-D7). When the clock signal transitions from low to high, the latch stores the data. The stored data is then available at the latch outputs (Q0-Q7). The output enable (OE) pin controls whether the outputs are active or in a high-impedance state.

Detailed Application Field Plans

The MM74HC373WM can be used in various applications, including:

1. Microcontrollers: Used to interface with external devices, such as memory modules or peripheral chips.
2. Data storage systems: Enables the temporary storage of data during processing or transmission.
3. Communication systems: Facilitates the buffering and synchronization of data between different components.
4. Industrial automation: Provides control and data storage capabilities in automated systems.

Detailed and Complete Alternative Models

1. SN74HC373: Similar octal transparent latch with 3-state outputs, offered by Texas Instruments.
2. CD74HC373: Octal transparent latch with 3-state outputs, manufactured by ON Semiconductor.
3. 74HCT373: Octal D-type transparent latch with 3-state outputs, available from various manufacturers.

These alternative models offer similar functionality and can be considered as substitutes for the MM74HC373WM based on specific requirements and availability.

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