Encyclopedia Entry: 74LVQ573MTR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Digital Logic Level Shifter
• Characteristics: High-speed, low-voltage, octal transparent latch with 3-state outputs
• Package: TSSOP-20
• Essence: The 74LVQ573MTR is a versatile IC that allows for level shifting and latching of digital signals in various applications.
• Packaging/Quantity: Available in tape and reel packaging, with 2500 units per reel.

Specifications

• Supply Voltage: 1.65V to 5.5V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Operating Temperature Range: -40°C to +85°C
• Latch Type: Transparent D-type latch
• Number of Latches: 8
• Output Type: 3-state non-inverting outputs
• Propagation Delay: 4.2 ns (typical)
• Output Current: ±24 mA

Detailed Pin Configuration

The 74LVQ573MTR has a TSSOP-20 package with the following pin configuration:

+----+--+----+ OE1 |1 +--+ 20| VCC D0 |2 19| D7 D1 |3 18| GND D2 |4 17| Q7 D3 |5 16| Q6 D4 |6 15| Q5 D5 |7 14| Q4 D6 |8 13| Q3 LE |9 12| Q2 CP |10 11| Q1 +------------+

Functional Features

• The 74LVQ573MTR is designed to shift the logic levels of digital signals, making it suitable for interfacing between devices operating at different voltage levels.
• It features a transparent latch that allows data to be latched when the latch enable (LE) input is high.
• The IC provides 3-state outputs, allowing multiple devices to share a common bus without interfering with each other.
• It operates at high speeds and can handle a wide range of input and output voltages.

Advantages and Disadvantages

Advantages: - Wide supply voltage range enables compatibility with various systems. - High-speed operation allows for efficient data transfer. - 3-state outputs facilitate bus sharing in complex digital systems. - Compact TSSOP-20 package offers space-saving benefits.

Disadvantages: - Limited number of latches (8) may not be sufficient for certain applications requiring more inputs/outputs. - Propagation delay of 4.2 ns may introduce timing issues in highly time-critical applications.

Working Principles

The 74LVQ573MTR operates based on the principles of level shifting and latching. When the latch enable (LE) input is high, the data inputs (D0-D7) are transparently transferred to the corresponding outputs (Q0-Q7). The 3-state outputs allow the device to be effectively disconnected from the bus when the output enable (OE1) input is low, preventing any interference with other devices connected to the same bus.

Detailed Application Field Plans

The 74LVQ573MTR finds applications in various fields, including: 1. Microcontroller interfacing with peripherals operating at different voltage levels. 2. Data communication systems where level shifting is required between different logic families. 3. Memory address decoding and data storage applications. 4. Industrial automation systems for signal conditioning and interfacing.

Detailed Alternative Models

1. 74HC573: Similar octal transparent latch with 3-state outputs, but operates at a higher voltage range (2V to 6V).
2. 74HCT573: Octal transparent latch with 3-state outputs designed for operation at TTL logic levels (5V).
3. SN74LV573A: Octal transparent latch with 3-state outputs, compatible with low-voltage systems (1.65V to 3.6V).

(Note: The above alternative models are just a few examples; there are several other alternatives available in the market.)

In conclusion, the 74LVQ573MTR is a versatile IC that provides level shifting and latching capabilities for digital signals. Its high-speed operation, wide supply voltage range, and compact package make it suitable for various applications in different fields. However, its limited number of latches and propagation delay should be considered when selecting the appropriate IC for specific requirements.