Encyclopedia Entry: 74VHC573MTC

Product Overview

• Category: Integrated Circuit (IC)
• Use: Digital Logic Device
• Characteristics: High-Speed, Octal Transparent D-Type Latch
• Package: TSSOP-20
• Essence: The 74VHC573MTC is a high-speed octal transparent D-type latch that operates at a voltage of 3.3V. It is commonly used in digital systems to store and control data. The latch is designed to provide reliable and efficient data storage and transfer capabilities.
• Packaging/Quantity: The 74VHC573MTC is available in a TSSOP-20 package, which stands for Thin Shrink Small Outline Package. Each package contains one IC.

Specifications

• Supply Voltage: 2V to 5.5V
• Input Voltage: 0V to VCC
• Output Voltage: 0V to VCC
• Operating Temperature Range: -40°C to +85°C
• Latch Type: Transparent D-Type
• Number of Latches: 8
• Latch Output Type: Tri-State
• Latch Output Current: ±6mA
• Latch Propagation Delay: 4.3ns (typical)
• Latch Hold Time: 1.5ns (typical)

Pin Configuration

The 74VHC573MTC has a total of 20 pins arranged as follows:

+-----+--+-----+ OE --|1 20|-- VCC D0 --|2 19|-- Q0 D1 --|3 18|-- Q1 D2 --|4 17|-- Q2 D3 --|5 16|-- Q3 D4 --|6 15|-- Q4 D5 --|7 14|-- Q5 D6 --|8 13|-- Q6 D7 --|9 12|-- Q7 GND --|10 11|-- LE +-----+--+

Functional Features

• Transparent Latching: The 74VHC573MTC features transparent latching, allowing data to be stored and transferred while the latch is enabled.
• Tri-State Outputs: The latch outputs have tri-state functionality, enabling multiple devices to share a common bus without interference.
• High-Speed Operation: With a typical propagation delay of 4.3ns, the latch ensures efficient data transfer in high-speed digital systems.
• Wide Operating Voltage Range: The IC can operate within a voltage range of 2V to 5.5V, making it compatible with various digital logic systems.

Advantages and Disadvantages

Advantages: - High-speed operation enables efficient data transfer. - Tri-state outputs allow for shared bus usage. - Wide operating voltage range provides compatibility with different systems.

Disadvantages: - Limited latch output current may restrict certain applications. - The TSSOP-20 package may require careful handling during installation.

Working Principles

The 74VHC573MTC operates based on the principles of transparent latching. When the latch enable (LE) input is high, the latch becomes transparent, allowing the data inputs (D0-D7) to pass through to the corresponding latch outputs (Q0-Q7). When the LE input is low, the latch holds the last data received, maintaining its state until the next enable signal.

Detailed Application Field Plans

The 74VHC573MTC finds applications in various digital systems, including: 1. Microcontrollers and microprocessors 2. Data storage systems 3. Communication devices 4. Industrial automation equipment 5. Automotive electronics

Detailed Alternative Models

1. SN74LV573A: Low-Voltage Octal Transparent D-Type Latch
2. CD74HCT573: High-Speed CMOS Logic Octal Transparent Latch
3. MC74VHC573: Octal D-Type Latch with 3-State Outputs

These alternative models offer similar functionality to the 74VHC573MTC and can be considered as substitutes based on specific requirements.

In conclusion, the 74VHC573MTC is a high-speed octal transparent D-type latch commonly used in digital systems. Its transparent latching, tri-state outputs, and wide operating voltage range make it suitable for various applications. However, its limited latch output current and TSSOP-20 package should be taken into consideration when selecting this IC for specific projects.