Overview
The 74LVC373APW,118 is an octal D-type transparent latch produced by NXP Semiconductors, now part of Nexperia. This device is designed to operate in a wide range of voltage levels, from 1.2 V to 3.6 V, making it versatile for various applications. It features latch enable (LE) and output enable (OE) inputs, allowing for precise control over data storage and output states. The device is particularly useful in mixed 3.3 V and 5 V environments due to its 5 V tolerant inputs and outputs.
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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 74LVC373APW | 1.2 - 3.6 | TTL | ± 24 | 3.0 | Low power | -40 ~ 125 | 101 | 4.6 | 45 | TSSOP20 |
Key Features
- Octal D-type transparent latch: Allows data to be stored and retrieved in a transparent mode when the latch enable (LE) is high.
- 3-state outputs: Outputs can be set to high-impedance state using the output enable (OE) input.
- 5 V tolerant inputs/outputs: Compatible with both 3.3 V and 5 V devices, making it suitable for mixed voltage environments.
- Schmitt-trigger action at all inputs: Enhances noise immunity by tolerating slower input rise and fall times.
- IOFF circuitry: Enables partial power-down mode operation, preventing backflow current when the device is powered down.
- Low power consumption: CMOS technology ensures low power dissipation.
- Direct interface with TTL levels: Compatible with TTL logic levels.
- High-impedance outputs when VCC = 0 V: Ensures safe operation during power-down states.
- ESD protection: Compliant with ANSI/ESDA/JEDEC standards, exceeding 2000 V for HBM and 1000 V for CDM.
- Operating temperature range: Specified from -40 °C to +125 °C.
Applications
The 74LVC373APW,118 is suitable for a variety of applications, including:
- Mixed voltage systems: Ideal for environments where both 3.3 V and 5 V devices are used.
- Data storage and retrieval: Useful in systems requiring temporary storage of data.
- Interface translation: Acts as a translator between different voltage level devices.
- Low power designs: Suitable for applications where low power consumption is critical.
- Industrial and automotive systems: Robust enough to operate in a wide temperature range, making it suitable for industrial and automotive applications.
Q & A
- Q: What is the primary function of the 74LVC373APW,118?
A: The primary function is to act as an octal D-type transparent latch with 3-state outputs.
- Q: What is the voltage range for the 74LVC373APW,118?
A: The device operates within a voltage range of 1.2 V to 3.6 V.
- Q: What is the significance of the latch enable (LE) and output enable (OE) inputs?
A: The LE input controls when data is stored or passed through, while the OE input sets the outputs to a high-impedance state.
- Q: Is the 74LVC373APW,118 compatible with both 3.3 V and 5 V devices?
A: Yes, it is 5 V tolerant, making it compatible with both 3.3 V and 5 V environments.
- Q: What is the purpose of the IOFF circuitry?
A: The IOFF circuitry prevents backflow current when the device is powered down.
- Q: What are the ESD protection levels for this device?
A: It exceeds 2000 V for HBM and 1000 V for CDM, complying with ANSI/ESDA/JEDEC standards.
- Q: What is the operating temperature range for the 74LVC373APW,118?
A: The device operates from -40 °C to +125 °C.
- Q: What package type is the 74LVC373APW,118 available in?
A: It is available in a 20-TSSOP package.
- Q: Is the 74LVC373APW,118 RoHS compliant?
A: Yes, it is lead-free and RoHS compliant.
- Q: What is the output drive capability of the 74LVC373APW,118?
A: The output drive capability is ± 24 mA.
