SN74AHCT573N

Product Overview

• Category: Integrated Circuit (IC)
• Use: Octal D-type transparent latch with 3-state outputs
• Characteristics:
  • High-speed operation
  • Low power consumption
  • Wide operating voltage range
  • 3-state outputs for bus-oriented applications
• Package: DIP-20 (Dual In-line Package with 20 pins)
• Essence: The SN74AHCT573N is a versatile latch IC that can store and output data in an octal configuration.
• Packaging/Quantity: Available in tubes or reels, with quantities varying based on the supplier.

Specifications

• Supply Voltage Range: 4.5V to 5.5V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Operating Temperature Range: -40°C to +85°C
• Output Drive Capability: ±24mA at 5V
• Propagation Delay Time: 6ns (typical)
• Input Capacitance: 3pF (typical)

Detailed Pin Configuration

The SN74AHCT573N has a total of 20 pins, which are assigned 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 D-type transparent latch with 3-state outputs
• Latch enable (LE) and output enable (OE) control inputs
• Transparent latch operation allows data to be stored when the latch enable is high
• 3-state outputs provide flexibility for bus-oriented applications
• High-speed operation enables efficient data transfer

Advantages and Disadvantages

Advantages: - High-speed operation makes it suitable for time-critical applications - Low power consumption helps in reducing overall energy usage - Wide operating voltage range allows compatibility with various systems - 3-state outputs facilitate bus sharing and reduce conflicts

Disadvantages: - Limited number of outputs may restrict certain applications requiring more outputs - DIP-20 package may not be suitable for space-constrained designs - Propagation delay time may affect timing-sensitive applications

Working Principles

The SN74AHCT573N operates as an octal D-type transparent latch. When the latch enable (LE) input is high, the data inputs (D0-D7) are latched and stored. The stored data can then be outputted through the corresponding Q0-Q7 outputs when the output enable (OE) input is also high. The transparent latch operation allows continuous data flow while the latch enable is active.

Detailed Application Field Plans

The SN74AHCT573N finds applications in various fields, including:

1. Microprocessor-based systems
2. Data storage and retrieval systems
3. Communication systems
4. Industrial automation
5. Automotive electronics
6. Test and measurement equipment
7. Consumer electronics

Detailed and Complete Alternative Models

Some alternative models to the SN74AHCT573N include:

1. 74HC573: Similar octal D-type transparent latch with 3-state outputs, but operates at a different voltage range.
2. CD74ACT573: Octal transparent latch with 3-state outputs, offering improved speed and performance.
3. MC74HCT573A: Octal D-type latch with 3-state outputs, designed for high-noise immunity applications.

These alternative models provide similar functionality but may have variations in operating characteristics and package options.

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