SN74HCT573DWRG4

Product Overview

Category

SN74HCT573DWRG4 belongs to the category of integrated circuits (ICs).

Use

It is commonly used as an octal transparent latch with 3-state outputs.

Characteristics

• Octal D-type transparent latches
• 3-state outputs for bus-oriented applications
• High-speed operation
• Low power consumption
• Schmitt-trigger action on all inputs
• ESD protection exceeds JESD 22

Package

The SN74HCT573DWRG4 comes in a standard SOIC-20 package.

Essence

The essence of SN74HCT573DWRG4 lies in its ability to store and output data in a bus-oriented system.

Packaging/Quantity

This product is typically packaged in reels, with 2500 units per reel.

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
• Propagation delay time: 14 ns (max)
• Output current: ±6 mA

Detailed Pin Configuration

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

The SN74HCT573DWRG4 is an octal transparent latch with 3-state outputs. It can store and output data in a bus-oriented system. The latch is transparent when the latch enable (LE) input is high, allowing the data inputs to be transferred to the outputs. When the LE input is low, the latch holds the last data present at the inputs.

The output enable (OE) input controls the 3-state outputs. When OE is high, the outputs are in the high-impedance state, allowing multiple devices to share a common bus without interference.

Advantages and Disadvantages

Advantages

• High-speed operation allows for efficient data transfer.
• Low power consumption helps conserve energy.
• Schmitt-trigger action on all inputs ensures noise immunity.
• ESD protection exceeds industry standards, enhancing reliability.

Disadvantages

• Limited supply voltage range of 4.5V to 5.5V.
• Propagation delay time of 14 ns may not be suitable for extremely time-sensitive applications.

Working Principles

The SN74HCT573DWRG4 operates based on the principles of latch-based storage and 3-state output control. When the latch enable (LE) input is high, the latch becomes transparent, allowing the data inputs to pass through to the outputs. Conversely, when LE is low, the latch holds the last data present at the inputs.

The output enable (OE) input determines the state of the outputs. When OE is high, the outputs enter a high-impedance state, allowing other devices to drive the bus without interference.

Detailed Application Field Plans

The SN74HCT573DWRG4 is widely used in various applications, including: - Data storage and transfer in microcontrollers - Address decoding in memory systems - Bus-oriented systems requiring multiple devices to share a common bus

Detailed and Complete Alternative Models

1. SN74HCT573N: DIP-20 package, similar specifications
2. 74HC573D: SOIC-20 package, compatible functionality
3. CD74HCT573E: PDIP-20 package, comparable performance

These alternative models offer similar functionality and can be used as substitutes for the SN74HCT573DWRG4 in various applications.

In conclusion, the SN74HCT573DWRG4 is an octal transparent latch with 3-state outputs, commonly used in bus-oriented systems. Its high-speed operation, low power consumption, and noise immunity make it suitable for various applications. However, its limited supply voltage range and propagation delay time should be considered when selecting alternatives.