Overview
The 74LVC573APW,112 is an 8-bit D-type transparent latch produced by Nexperia, a company that was previously part of NXP Semiconductors. This device is designed to operate in a wide range of applications, particularly in mixed 3.3 V and 5 V environments. It features latch enable (LE) and output enable (OE) inputs, allowing for flexible control over data storage and output states. The 74LVC573APW is part of the LVC family, known for its low power consumption and high-speed operation.
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 stored and retrieved in a transparent manner when the latch enable (LE) is high.
- 3-state outputs: Outputs can be set to high-impedance state using the output enable (OE) input.
- Wide supply voltage range: Operates from 1.2 to 3.6 V, with overvoltage tolerant inputs up to 5.5 V.
- CMOS low power consumption: Low power consumption makes it suitable for battery-powered devices.
- Direct interface with TTL levels: Compatible with TTL logic levels.
- IOFF circuitry: Provides partial power-down mode operation, preventing backflow current when powered down.
- Schmitt-trigger action: Tolerant of slower input rise and fall times.
- ESD protection: High ESD protection levels (HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V, CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V).
- Flow-through pinout architecture: Simplifies PCB layout.
Applications
- Mixed 3.3 V and 5 V environments: Acts as a translator between different voltage levels.
- Low power devices: Suitable for battery-powered devices due to low power consumption.
- High-speed applications: Fast switching times make it suitable for high-speed logic circuits.
- Partial power-down applications: IOFF circuitry allows for partial power-down mode operation.
Q & A
- What is the 74LVC573APW,112 used for?
The 74LVC573APW,112 is an 8-bit D-type transparent latch used for storing and retrieving data in digital circuits, particularly in mixed voltage environments.
- What is the operating voltage range of the 74LVC573APW,112?
The device operates from 1.2 to 3.6 V and has overvoltage tolerant inputs up to 5.5 V.
- What are the key features of the 74LVC573APW,112?
Key features include 3-state outputs, Schmitt-trigger action, CMOS low power consumption, and IOFF circuitry for partial power-down mode.
- What packages are available for the 74LVC573APW,112?
The device is available in TSSOP20 (SOT360-1) package.
- Is the 74LVC573APW,112 RoHS compliant?
Yes, the device is RoHS compliant.
- What is the temperature range for the 74LVC573APW,112?
The device is specified to operate from -40 °C to +125 °C.
- What is the output drive capability of the 74LVC573APW,112?
The output drive capability is ± 24 mA.
- Does the 74LVC573APW,112 have ESD protection?
Yes, it has high ESD protection levels (HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V, CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V).
- How does the latch enable (LE) input work?
When LE is HIGH, data at the inputs enter the latches. When LE is LOW, the latches store the information that was present at the inputs a set-up time preceding the HIGH-to-LOW transition of LE.
- What is the purpose of the output enable (OE) input?
A HIGH on OE causes the outputs to assume a high-impedance OFF-state, without affecting the state of the latches.
