Overview
The SN74HC573ADW is an octal transparent D-type latch produced by Texas Instruments. This component is designed for use in digital systems where data storage, transmission, and buffering are required. It features eight D-type latches with 3-state outputs, making it suitable for interfacing with bus-oriented systems. The SN74HC573ADW is widely used in applications such as microcontrollers, data buses, and peripheral drivers, offering high performance and reliability in a compact SOIC-20 package.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Supply Voltage | 2.0 to 6.0 | V | Operating range |
| Output Current | ±7 | mA | High/Low state |
| Propagation Delay | 13 | ns | Typical at 5V |
| Operating Temperature | -40 to 85 | °C | Industrial range |
| Package | SOIC-20 | - | Surface mount |
Key Features
- Eight D-type latches with 3-state outputs for bus-oriented applications.
- High-performance CMOS technology ensures low power consumption and high speed.
- Buffered control inputs improve noise immunity and reduce loading effects.
- Direct interface with TTL levels, ensuring compatibility with a wide range of digital systems.
- Latch enable (LE) and output enable (OE) inputs provide flexible control over data flow.
Applications
The SN74HC573ADW is commonly used in digital systems for data storage and buffering. It is ideal for applications such as microcontrollers, where it can be used to interface with data buses and peripheral devices. Its ability to drive high-capacitance loads makes it suitable for use in bus drivers and memory interfaces. Additionally, it is often employed in industrial control systems and consumer electronics for signal buffering and level shifting.
Q & A
What is the function of the LE pin in SN74HC573ADW?
The LE (Latch Enable) pin controls the transparency of the latch. When LE is high, the output follows the input data. When LE is low, the output is latched and holds the last input data.
What is the purpose of the OE pin?
The OE (Output Enable) pin enables or disables the outputs. When OE is low, the outputs are active. When OE is high, the outputs are in a high-impedance state.
What is the operating voltage range of SN74HC573ADW?
The operating voltage range is from 2.0V to 6.0V, making it compatible with both 3.3V and 5V systems.
Can SN74HC573ADW be used in high-speed applications?
Yes, with a typical propagation delay of 13ns at 5V, it is suitable for high-speed digital applications.
What is the maximum output current of SN74HC573ADW?
The maximum output current is ±7mA in both high and low states.
Is SN74HC573ADW suitable for industrial environments?
Yes, it operates reliably in the industrial temperature range of -40°C to 85°C.
What package does SN74HC573ADW come in?
It is available in an SOIC-20 surface-mount package.
Can SN74HC573ADW drive capacitive loads?
Yes, it is designed to drive high-capacitance loads, making it suitable for bus-oriented systems.
How does SN74HC573ADW improve noise immunity?
Buffered control inputs reduce loading effects and improve noise immunity, ensuring stable operation in noisy environments.
What are typical applications of SN74HC573ADW?
Typical applications include microcontrollers, data buses, memory interfaces, and industrial control systems.
