MM74HC573SJX

Product Overview

• Category: Integrated Circuit (IC)
• Use: Digital Logic
• Characteristics: High-Speed, Octal Transparent Latch with 3-State Outputs
• Package: 20-pin Small Outline Integrated Circuit (SOIC)
• Essence: The MM74HC573SJX is a latch IC that can store and output digital data. It is designed to operate at high speeds and offers 3-state outputs for bus-oriented applications.
• Packaging/Quantity: The MM74HC573SJX is typically sold in reels or tubes containing multiple units.

Specifications

• Supply Voltage: 2V to 6V
• Input Voltage: 0V to Vcc
• Output Voltage: 0V to Vcc
• Operating Temperature Range: -40°C to +85°C
• Propagation Delay Time: 13 ns (max)
• Output Current: ±25 mA
• Latch-Up Performance: 300 mA

Pin Configuration

The MM74HC573SJX has a total of 20 pins, which are assigned specific functions 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
• High-speed operation suitable for bus-oriented applications
• Latch enable and output enable control signals for flexible data storage and output control
• 3-state outputs allow multiple devices to share a common bus without interference

Advantages and Disadvantages

Advantages: - High-speed operation enables efficient data transfer - 3-state outputs facilitate bus sharing among multiple devices - Flexible control signals provide versatile data storage and output options

Disadvantages: - Limited voltage range (2V to 6V) - Propagation delay time may affect timing-sensitive applications

Working Principles

The MM74HC573SJX operates as an octal transparent latch, meaning it can store and output digital data. The latch is controlled by the latch enable (LE) signal, which determines when the input data is stored. The output enable (OE) signal controls whether the stored data is presented at the outputs or not.

When the LE signal is high, the latch is enabled, allowing the input data to be latched and stored. The stored data is then available at the outputs when the OE signal is also high. When the OE signal is low, the outputs are in a high-impedance state, effectively disconnecting them from the bus.

Detailed Application Field Plans

The MM74HC573SJX is commonly used in various digital logic applications, including:

1. Data storage and retrieval in microcontrollers and microprocessors
2. Address decoding in memory systems
3. Bus interfacing in communication systems
4. Register implementation in digital circuits
5. State machine design in control systems

Alternative Models

Here are some alternative models that offer similar functionality to the MM74HC573SJX:

1. SN74HC573N: 20-pin DIP package, same specifications and features
2. CD74HC573E: 20-pin PDIP package, same specifications and features
3. 74HCT573: 20-pin SOIC package, compatible with TTL logic levels

These alternatives can be considered based on specific requirements or availability.

In conclusion, the MM74HC573SJX is a high-speed octal transparent latch IC used in various digital logic applications. Its versatile features, such as latch enable and output enable control signals, make it suitable for data storage and bus-oriented systems. While it has limitations in voltage range and propagation delay time, alternative models provide options for different package types and compatibility with TTL logic levels.