DM74AS573WM

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Data storage and transfer
• Characteristics: High-speed, octal transparent latch with 3-state outputs
• Package: 20-pin wide SOIC (Small Outline Integrated Circuit)
• Essence: The DM74AS573WM is a latch IC that can store and transfer data in digital systems.
• Packaging/Quantity: Available in reels or tubes, typically sold in quantities of 1000 units.

Specifications

• Supply Voltage: 4.5V to 5.5V
• High-Level Input Voltage: 2.0V min
• Low-Level Input Voltage: 0.8V max
• High-Level Output Voltage: 2.7V min
• Low-Level Output Voltage: 0.5V max
• Operating Temperature Range: -40°C to +85°C
• Maximum Clock Frequency: 100MHz

Detailed Pin Configuration

The DM74AS573WM has a total of 20 pins, each serving a specific function:

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. Q0: Output 0
11. Q1: Output 1
12. Q2: Output 2
13. Q3: Output 3
14. Q4: Output 4
15. Q5: Output 5
16. Q6: Output 6
17. Q7: Output 7
18. OE: Output Enable
19. LE: Latch Enable
20. VCC: Supply voltage

Functional Features

• Octal transparent latch: Allows data to be stored and transferred in parallel.
• 3-state outputs: Enables multiple devices to share a common bus without interference.
• High-speed operation: Suitable for applications requiring fast data transfer.
• Latch enable (LE) input: Controls the storage and transfer of data.
• Output enable (OE) input: Enables or disables the outputs.

Advantages and Disadvantages

Advantages: - High-speed operation allows for efficient data transfer. - 3-state outputs facilitate bus sharing in complex systems. - Octal latch design enables parallel data storage and transfer.

Disadvantages: - Limited supply voltage range (4.5V to 5.5V). - Not suitable for low-power applications due to higher power consumption compared to some alternative models.

Working Principles

The DM74AS573WM operates by latching the input data when the latch enable (LE) signal is active. The latched data is then available at the outputs. The output enable (OE) signal controls whether the outputs are enabled or disabled. When disabled, the outputs enter a high-impedance state, allowing other devices to drive the shared bus.

Detailed Application Field Plans

The DM74AS573WM is commonly used in various digital systems, including:

1. Microprocessors and microcontrollers
2. Data communication systems
3. Memory modules
4. Industrial automation equipment
5. Test and measurement instruments

Its ability to store and transfer data quickly makes it suitable for applications that require efficient data handling and synchronization.

Detailed and Complete Alternative Models

1. SN74LS373: Octal D-type transparent latch with 3-state outputs
2. CD74HC573: High-speed CMOS octal transparent latch with 3-state outputs
3. MC74ACT573: Octal transparent latch with 3-state outputs and TTL-compatible inputs

These alternative models offer similar functionality to the DM74AS573WM and can be used as replacements depending on specific requirements.

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