SN74AS573ADWR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Data storage and transfer
• Characteristics: High-speed, octal transparent latch with 3-state outputs
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: Provides a latch function for temporary data storage in digital systems
• Packaging/Quantity: Tape and reel, 2500 units per reel

Specifications

• Logic Family: AS
• Technology: TTL (Transistor-Transistor Logic)
• Number of Bits: 8
• Output Type: 3-state
• Operating Voltage Range: 4.5V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Propagation Delay Time: 9 ns (typical)
• Input Capacitance: 6 pF (typical)
• Output Capacitance: 12 pF (typical)

Detailed Pin Configuration

The SN74AS573ADWR has a total of 20 pins. The pin configuration is as follows:

1. D0 (Data input 0)
2. D1 (Data input 1)
3. D2 (Data input 2)
4. D3 (Data input 3)
5. D4 (Data input 4)
6. D5 (Data input 5)
7. D6 (Data input 6)
8. D7 (Data input 7)
9. GND (Ground)
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 (Power supply)

Functional Features

• Octal transparent latch: Allows data to be stored and transferred in digital systems.
• 3-state outputs: Provides the ability to disconnect the outputs from the bus, allowing multiple devices to share the same bus without interference.
• High-speed operation: Enables efficient data transfer in time-critical applications.

Advantages and Disadvantages

Advantages: - High-speed operation allows for quick data transfer. - 3-state outputs enable bus sharing among multiple devices. - Reliable and widely used technology.

Disadvantages: - Limited voltage range of operation. - Requires external control signals for proper functioning.

Working Principles

The SN74AS573ADWR operates as an octal transparent latch. When the latch enable (LE) signal is high, the input data is latched and stored in the internal memory. The output enable (OE) signal controls the state of the outputs. When OE is low, the outputs are active and reflect the stored data. When OE is high, the outputs are in a high-impedance state, effectively disconnecting them from the bus.

Detailed Application Field Plans

The SN74AS573ADWR is commonly used in various digital systems where temporary data storage and transfer are required. Some application fields include:

1. Microprocessors and microcontrollers
2. Communication systems
3. Data acquisition systems
4. Industrial automation
5. Automotive electronics

Detailed and Complete Alternative Models

1. SN74LS573: Low-power Schottky version with similar functionality.
2. SN74HC573: High-speed CMOS version with improved power consumption.
3. SN74ACT573: Advanced CMOS version with increased speed and lower power consumption.

These alternative models offer similar latch functionality but may vary in terms of speed, power consumption, and voltage compatibility.

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