Overview
The 74HC573D,653 is an 8-bit D-type transparent latch with 3-state outputs, manufactured by Nexperia USA Inc. This integrated circuit is part of the 74HC family and is designed for use in a variety of digital logic applications. The device features latch enable (LE) and output enable (OE) inputs, allowing for flexible control over data storage and output states. When the LE input is HIGH, the latches are transparent, and the output follows the input. When LE is LOW, the latches store the data present at the inputs. A HIGH on the OE input causes the outputs to enter a high-impedance OFF-state, without affecting the stored data in the latches.
Key Specifications
| Specification | Value |
|---|---|
| Type of Integrated Circuit | Digital D-latch |
| Number of Channels | 8 |
| Technology | CMOS |
| Mounting | SMD |
| Case | SO20 (SOT163-1) |
| Operating Temperature | -40°C to 125°C |
| Kind of Output | 3-state |
| Family | HC |
| Trigger | Level-triggered |
| Quiescent Current | 160 µA |
| Input Levels | CMOS level |
Key Features
- 8-bit D-type transparent latch with 3-state outputs
- Latch enable (LE) and output enable (OE) inputs for control over data storage and output states
- Transparent mode when LE is HIGH, allowing real-time input reflection at the outputs
- Data storage when LE is LOW, retaining the last input state
- High-impedance OFF-state for outputs when OE is HIGH, without affecting stored data
- Inputs include clamp diodes for voltage protection and the ability to use current limiting resistors
- Inputs and outputs on opposite sides of the package, facilitating easy interface with microprocessors
Applications
The 74HC573D,653 is versatile and can be used in various digital logic applications, including:
- Input or output ports for microprocessors and microcomputers
- Buffering and storage in digital systems
- Interface circuits where data needs to be latched and controlled
- Automotive, industrial, and consumer electronics where reliable and efficient digital logic is required
Q & A
- What is the 74HC573D,653? The 74HC573D,653 is an 8-bit D-type transparent latch with 3-state outputs manufactured by Nexperia USA Inc.
- What are the key inputs of the 74HC573D,653? The key inputs include latch enable (LE) and output enable (OE).
- How does the latch enable (LE) input function? When LE is HIGH, the latches are transparent, and when LE is LOW, the latches store the data present at the inputs.
- What is the effect of the output enable (OE) input? A HIGH on the OE input causes the outputs to enter a high-impedance OFF-state without affecting the stored data.
- What is the operating temperature range of the 74HC573D,653? The operating temperature range is -40°C to 125°C.
- What technology is used in the 74HC573D,653? The device uses CMOS technology.
- What is the package type of the 74HC573D,653? The device is packaged in a SO20 (SOT163-1) case.
- Can the 74HC573D,653 be used with microprocessors? Yes, it is designed to be used as input or output ports for microprocessors and microcomputers.
- What are some common applications of the 74HC573D,653? It is used in automotive, industrial, and consumer electronics for buffering, storage, and interface circuits.
- What is the quiescent current of the 74HC573D,653? The quiescent current is 160 µA.
