SN74HCT373AN

Product Overview

• Category: Integrated Circuit (IC)
• Use: Octal Transparent D-Type Latches with 3-State Outputs
• Characteristics:
  • High-speed operation
  • Wide operating voltage range
  • 3-state outputs for bus-oriented applications
  • Output capability: 6 mA at VCC = 4.5 V
  • TTL compatibility: VIH = 2 V, VIL = 0.8 V
• Package: PDIP-20 (Plastic Dual-In-Line Package)
• Essence: The SN74HCT373AN is a latch IC that can store and output data in an octal format. It is commonly used in digital systems where multiple bits of data need to be stored and controlled simultaneously.
• Packaging/Quantity: The SN74HCT373AN is typically sold in tubes or reels containing multiple units.

Specifications

• Supply Voltage Range: 4.5 V to 5.5 V
• Input Voltage Range: 0 V to VCC
• Operating Temperature Range: -40°C to +85°C
• Output Current: 6 mA
• Propagation Delay Time: 15 ns (max)
• Input Capacitance: 3 pF
• Output Capacitance: 10 pF

Detailed Pin Configuration

The SN74HCT373AN has a total of 20 pins. The pin configuration is as follows:

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
• Data inputs are latched when the latch enable (LE) signal is high
• Outputs can be enabled or disabled using the output enable (OE) signal
• High-speed operation allows for efficient data storage and retrieval
• Wide operating voltage range makes it compatible with various digital systems

Advantages and Disadvantages

Advantages: - High-speed operation enables efficient data handling - Wide operating voltage range provides compatibility with different systems - 3-state outputs allow for bus-oriented applications - TTL compatibility ensures seamless integration with other digital components

Disadvantages: - Limited output current capability (6 mA) - Propagation delay time may affect real-time applications - Input and output capacitance may impact overall system performance

Working Principles

The SN74HCT373AN operates as an octal transparent latch with 3-state outputs. When the latch enable (LE) signal is high, the data inputs (D0-D7) are latched and stored in the internal memory. The stored data can then be accessed through the corresponding outputs (Q0-Q7). The output enable (OE) signal controls whether the outputs are active or in a high-impedance state.

Detailed Application Field Plans

The SN74HCT373AN is widely used in various digital systems and applications, including:

1. Microprocessors and microcontrollers
2. Memory systems
3. Data storage and retrieval systems
4. Communication systems
5. Industrial automation
6. Automotive electronics
7. Consumer electronics

Detailed and Complete Alternative Models

1. 74HC373: Similar octal transparent latch with 3-state outputs, but operates at a different voltage range (2 V to 6 V).
2. CD74HCT373: Octal transparent latch with 3-state outputs from Texas Instruments.
3. MC74HCT373A: Octal transparent latch with 3-state outputs from ON Semiconductor.

These alternative models offer similar functionality and can be used as replacements for the SN74HCT373AN in various applications.

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