MC74HCT373AN

Product Overview

• Category: Integrated Circuit (IC)
• Use: Octal Transparent Latch with 3-State Outputs
• Characteristics: High-Speed CMOS Logic, 8-bit latch, 3-state outputs
• Package: DIP-20 (Dual In-Line Package with 20 pins)
• Essence: The MC74HCT373AN is a high-speed octal transparent latch with 3-state outputs. It is designed to store and transfer data in various applications.
• Packaging/Quantity: The MC74HCT373AN is typically sold in reels or tubes, containing multiple units.

Specifications

• Supply Voltage: 2V to 6V
• Input Voltage: -0.5V to VCC + 0.5V
• Output Voltage: -0.5V to VCC + 0.5V
• Operating Temperature: -55°C to +125°C
• Propagation Delay: 14 ns (max)
• Output Current: ±25 mA

Detailed Pin Configuration

The MC74HCT373AN has a total of 20 pins, which are assigned specific functions:

1. GND: Ground
2. D0: Data Input 0
3. D1: Data Input 1
4. D2: Data Input 2
5. D3: Data Input 3
6. D4: Data Input 4
7. D5: Data Input 5
8. D6: Data Input 6
9. D7: Data Input 7
10. OE: Output Enable
11. LE: Latch Enable
12. Q0: Output 0
13. Q1: Output 1
14. Q2: Output 2
15. Q3: Output 3
16. Q4: Output 4
17. Q5: Output 5
18. Q6: Output 6
19. Q7: Output 7
20. VCC: Supply Voltage

Functional Features

• Octal transparent latch with 3-state outputs
• High-speed CMOS logic for efficient data transfer
• Allows storage and transfer of 8-bit data
• Output enable and latch enable pins for control
• 3-state outputs provide flexibility in connecting multiple devices

Advantages and Disadvantages

Advantages: - High-speed operation allows for quick data transfer - 3-state outputs offer flexibility in connecting multiple devices - Wide operating voltage range (2V to 6V) enables compatibility with various systems

Disadvantages: - Limited output current capacity (±25 mA) - Propagation delay of 14 ns may not be suitable for extremely time-sensitive applications

Working Principles

The MC74HCT373AN operates as an octal transparent latch with 3-state outputs. When the latch enable (LE) input is high, the data inputs (D0-D7) are transferred to the corresponding outputs (Q0-Q7). The output enable (OE) input controls whether the outputs are active or in a high-impedance state.

Detailed Application Field Plans

The MC74HCT373AN can be used in various applications that require data storage and transfer. Some potential application fields include:

1. Microcontrollers and microprocessors
2. Data communication systems
3. Memory modules
4. Industrial automation
5. Automotive electronics

Detailed and Complete Alternative Models

1. SN74HCT373N: Similar octal transparent latch with 3-state outputs, offered by Texas Instruments.
2. CD74HCT373E: Octal transparent latch with 3-state outputs, available from Texas Instruments.
3. 74HCT373D: Octal D-type transparent latch with 3-state outputs, provided by NXP Semiconductors.

These alternative models offer similar functionality and can be considered as substitutes for the MC74HCT373AN.

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