Overview
The 74LVC373APW is an octal D-type transparent latch with 3-state outputs, manufactured by Nexperia. 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 latching 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. It also includes Schmitt-trigger action at all inputs, enhancing its tolerance to slower input rise and fall times.
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 | -40 ~ 125 | 101 | 4.6 | 45 | 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 improved noise immunity
- Wide supply voltage range from 1.2 V to 3.6 V
- 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
Applications
The 74LVC373APW is suitable for a variety of applications, including:
- Mixed 3.3 V and 5 V systems where voltage translation is necessary
- Systems requiring low power consumption and high noise immunity
- Partial power-down applications where IOFF circuitry is beneficial
- General-purpose logic circuits requiring D-type latches with 3-state outputs
Q & A
- What is the primary function of the 74LVC373APW?
The primary function of the 74LVC373APW is to act as an octal D-type transparent latch with 3-state outputs.
- What is the supply voltage range for the 74LVC373APW?
The supply voltage range for the 74LVC373APW is from 1.2 V to 3.6 V.
- What is the significance of the latch enable (LE) and output enable (OE) inputs?
The latch enable (LE) input controls when data enters the latches, and the output enable (OE) input controls the output state, setting it to high-impedance when HIGH.
- What type of ESD protection does the 74LVC373APW have?
The 74LVC373APW has ESD protection exceeding 2000 V for HBM and 1000 V for CDM.
- What is the operating temperature range for the 74LVC373APW?
The operating temperature range for the 74LVC373APW is from -40 °C to +125 °C.
- What package type is the 74LVC373APW available in?
The 74LVC373APW is available in a TSSOP20 package.
- Does the 74LVC373APW support partial power-down mode?
- What is the significance of Schmitt-trigger action at the inputs?
Schmitt-trigger action at the inputs makes the circuit tolerant of slower input rise and fall times, improving noise immunity.
- Can the 74LVC373APW be used in mixed voltage systems?
- What are the key benefits of using the 74LVC373APW in terms of power consumption?
The 74LVC373APW offers CMOS low power consumption, making it energy-efficient.
