MC74HC373AFELG

Product Overview

• Category: Integrated Circuit (IC)
• Use: Digital Logic
• Characteristics: High-speed, Octal Transparent Latch with 3-State Outputs
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: The MC74HC373AFELG is an octal transparent latch with 3-state outputs. It is designed to be used as a memory element in digital systems.
• Packaging/Quantity: Available in tape and reel packaging, with a quantity of 2500 units per reel.

Specifications

• Supply Voltage Range: 2V to 6V
• High-Level Input Voltage: 2V
• Low-Level Input Voltage: 0.8V
• High-Level Output Voltage: 4.5V
• Low-Level Output Voltage: 0.1V
• Maximum Operating Frequency: 25MHz
• Propagation Delay Time: 15ns
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MC74HC373AFELG has a total of 20 pins, which are divided into two groups:

Group A (Input/Output Pins)

1. D0: Data Input/Output 0
2. D1: Data Input/Output 1
3. D2: Data Input/Output 2
4. D3: Data Input/Output 3
5. D4: Data Input/Output 4
6. D5: Data Input/Output 5
7. D6: Data Input/Output 6
8. D7: Data Input/Output 7

Group B (Control Pins)

1. OE: Output Enable
2. LE: Latch Enable
3. CP: Clock Pulse
4. GND: Ground
5. Q0: Output 0
6. Q1: Output 1
7. Q2: Output 2
8. Q3: Output 3
9. Q4: Output 4
10. Q5: Output 5
11. Q6: Output 6
12. Q7: Output 7

Functional Features

• Octal transparent latch with 3-state outputs
• High-speed operation, suitable for digital systems
• Allows data to be latched and stored
• Enables or disables the output using the OE pin
• Latch can be enabled or disabled using the LE pin
• Clock pulse input (CP) controls the latching of data

Advantages and Disadvantages

Advantages

• High-speed operation allows for efficient data processing
• 3-state outputs provide flexibility in connecting multiple devices
• Easy integration into digital systems
• Compact SOIC package saves space on PCBs

Disadvantages

• Limited voltage range (2V to 6V)
• Propagation delay time may affect real-time applications
• Requires careful handling due to sensitive pins

Working Principles

The MC74HC373AFELG operates by latching and storing data using the transparent latch. When the latch enable (LE) pin is high, the data inputs (D0-D7) are transferred to the outputs (Q0-Q7) on the rising edge of the clock pulse (CP). The output enable (OE) pin controls whether the outputs are active or in a high-impedance state.

Detailed Application Field Plans

The MC74HC373AFELG is commonly used in various digital systems, including:

1. Microcontrollers
2. Data storage devices
3. Communication equipment
4. Industrial automation systems
5. Automotive electronics

Detailed and Complete Alternative Models

1. SN74HC373N: Octal D-Type Transparent Latch
2. CD74HC373E: High-Speed CMOS Logic Octal Transparent Latch
3. 74HCT373: Octal D-Type Transparent Latch with 3-State Outputs

These alternative models offer similar functionality and can be used as replacements for the MC74HC373AFELG in various applications.

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