Overview
The 74LVC573APW/AU118 is an 8-bit D-type transparent latch produced by NXP USA Inc. This device is part of the 74LVC573A series and is designed for use in a variety of digital logic applications. It features latch enable (LE) and output enable (OE) inputs, allowing for precise control over data storage and output states. The device operates with a wide supply voltage range from 1.2 to 3.6 V and is compatible with both 3.3 V and 5 V input/output levels, making it suitable for mixed voltage environments.
Key Specifications
| Type number | VCC (V) | Logic switching levels | Output drive capability (mA) | tpd (ns) | Power dissipation considerations | Tamb (°C) | Rth(j-a) (K/W) | Ψth(j-top) (K/W) | Rth(j-c) (K/W) | Package name |
|---|---|---|---|---|---|---|---|---|---|---|
| 74LVC573APW | 1.2 - 3.6 | TTL | ± 24 | 3.4 | low | -40 ~ 125 | 101 | 4.7 | 45 | TSSOP20 |
Key Features
- Octal D-type transparent latch: Allows data to be latched and stored based on the state of the latch enable (LE) input.
- 3-state outputs: Outputs can be set to a high-impedance state using the output enable (OE) input.
- Wide supply voltage range: Operates from 1.2 to 3.6 V, making it versatile for different voltage environments.
- 5 V tolerant inputs/outputs: Compatible with both 3.3 V and 5 V devices, enabling use in mixed voltage systems.
- Schmitt-trigger action at all inputs: Enhances tolerance to slower input rise and fall times.
- Low power consumption: CMOS technology ensures low power usage.
- IOFF circuitry: Provides partial power-down mode operation, preventing backflow current when powered down.
- High-impedance when VCC = 0 V: Ensures outputs are in a high-impedance state when the device is powered off.
- Flow-through pinout architecture: Simplifies PCB layout.
- ESD protection: Compliant with ANSI/ESDA/JEDEC JS-001 class 2 (HBM) and JS-002 class C3 (CDM), exceeding 2000 V and 1000 V respectively.
Applications
- Digital logic circuits: Suitable for use in various digital logic applications requiring data latching and storage.
- Mixed voltage systems: Ideal for environments where both 3.3 V and 5 V devices are used.
- Low power designs: Appropriate for applications where low power consumption is critical.
- Automotive and industrial systems: Can operate over a wide temperature range (-40 °C to +125 °C), making it suitable for harsh environments.
Q & A
- What is the primary function of the 74LVC573APW?
The primary function is to act as an 8-bit D-type transparent latch with 3-state outputs.
- What is the supply voltage range for the 74LVC573APW?
The device operates with a supply voltage range from 1.2 to 3.6 V.
- What is the significance of the latch enable (LE) input?
The LE input controls whether the latches are transparent or store the data. When LE is HIGH, the latches are transparent; when LE is LOW, the latches store the data.
- What is the purpose of the output enable (OE) input?
The OE input sets the outputs to a high-impedance state when it is HIGH, without affecting the stored data.
- Is the 74LVC573APW compatible with both 3.3 V and 5 V devices?
- What type of ESD protection does the 74LVC573APW have?
- What is the operating temperature range for the 74LVC573APW?
- Does the 74LVC573APW support partial power-down mode?
- What is the package type for the 74LVC573APW?
- Is the 74LVC573APW RoHS compliant?
