Overview
The 74LVC373APW is an octal D-type transparent latch produced by Nexperia USA Inc. This device is designed to operate in a wide range of supply voltages from 1.2 V to 3.6 V, making it versatile for various electronic systems. It features latch enable (LE) and output enable (OE) inputs, allowing for precise control over data storage and output states. The 74LVC373APW 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) | Package name |
|---|---|---|---|---|---|---|---|
| 74LVC373APW | 1.2 - 3.6 | TTL | ± 24 | 3.0 | low | -40 ~ 125 | TSSOP20 |
Key Features
- Octal D-type transparent latch with 3-state outputs
- Latch enable (LE) and output enable (OE) inputs
- 5 V tolerant inputs and outputs, suitable for mixed 3.3 V and 5 V environments
- Schmitt-trigger action at all inputs for tolerance of slower input rise and fall times
- CMOS low power consumption
- Direct interface with TTL levels
- High-impedance outputs when VCC = 0 V
- IOFF circuitry for partial power-down mode operation
- ESD protection: HBM ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V, CDM ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V
- Complies with JEDEC standards: JESD8-7A, JESD8-5A, JESD8-C/JESD36
Applications
- Mixed 3.3 V and 5 V system environments
- Automotive and industrial control systems requiring robust and reliable logic functions
- Data storage and retrieval applications needing transparent latch functionality
- Systems requiring low power consumption and high ESD protection
- Partial power-down applications where IOFF circuitry is beneficial
Q & A
- What is the primary function of the 74LVC373APW?
The 74LVC373APW is an octal D-type transparent latch, which allows it to store and output data based on the latch enable and output enable inputs.
- What is the voltage range for the 74LVC373APW?
The device operates within a supply voltage range of 1.2 V to 3.6 V.
- What is the significance of 5 V tolerant inputs and outputs?
The 5 V tolerant inputs and outputs enable the device to be used in mixed 3.3 V and 5 V environments, acting as a translator between these voltage levels.
- What is the purpose of the latch enable (LE) and output enable (OE) inputs?
The LE input controls when data is stored in the latches, and the OE input controls the output state, allowing the outputs to be set to a high-impedance state.
- What type of ESD protection does the 74LVC373APW offer?
The device offers ESD protection exceeding 2000 V for HBM and 1000 V for CDM.
- What is the operating temperature range for the 74LVC373APW?
The device operates from -40 °C to +125 °C.
- What package types are available for the 74LVC373APW?
The device is available in a TSSOP20 package.
- Does the 74LVC373APW support partial power-down mode?
Yes, the device features IOFF circuitry for partial power-down mode operation.
- What are the key benefits of using the 74LVC373APW in automotive applications?
The device is automotive-qualified (AEC-Q100), offers low power consumption, and has robust ESD protection, making it suitable for automotive control systems.
- How does the Schmitt-trigger action benefit the 74LVC373APW?
The Schmitt-trigger action makes the circuit tolerant of slower input rise and fall times, improving reliability in noisy environments.
