Overview
The SN74LVC14AD is a hex Schmitt-trigger inverter produced by Texas Instruments. This device is designed to operate within a voltage range of 1.65 V to 3.6 V, making it versatile for various system environments. It contains six independent inverters that perform the Boolean function Y = A, allowing it to act as translators in mixed 3.3-V or 5-V systems. The SN74LVC14AD is available in a 14-pin SOIC package and is specified to operate over a temperature range of –40°C to +85°C, –40°C to +125°C, and –55°C to +125°C.
Key Specifications
| Parameter | Unit | Min | Typ | Max |
|---|---|---|---|---|
| VCC Supply Voltage | V | 1.65 | - | 3.6 |
| Input Voltage (VI) | V | -0.5 | - | 6.5 |
| Output Voltage (VO) | V | -0.5 | - | VCC + 0.5 |
| Maximum Propagation Delay Time (tpd) | ns | - | - | 6.4 @ 3.3 V |
| Operating Temperature Range | °C | -40 | - | 85 |
| ESD Protection (Human Body Model) | V | - | - | 2000 |
| ESD Protection (Charged-Device Model) | V | - | - | 1000 |
Key Features
- Latch-up performance exceeds 100 mA per JESD 78, Class II.
- ESD protection exceeds JESD 22: 2000-V human-body model, 200-V machine model, and 1000-V charged-device model.
- Operates from 1.65 V to 3.6 V VCC.
- Inputs accept voltages up to 5.5 V.
- Maximum propagation delay time of 6.4 ns at 3.3 V.
- Typical output ground bounce (VOLP) < 0.8 V at VCC = 3.3 V, TA = 25°C.
- Typical output VOH undershoot (VOHV) > 2 V at VCC = 3.3 V, TA = 25°C.
- Can be driven from either 3.3-V or 5-V devices, making it suitable for mixed-voltage system environments.
Applications
The SN74LVC14AD is suitable for a variety of applications, including:
- Mixed 3.3-V and 5-V system environments where voltage translation is necessary.
- General logic functions requiring Schmitt-trigger inputs to improve noise immunity.
- Systems requiring high ESD protection and latch-up performance.
- Automotive and industrial control systems where robustness against voltage fluctuations is crucial.
Q & A
- What is the operating voltage range of the SN74LVC14AD?
The SN74LVC14AD operates from 1.65 V to 3.6 V VCC.
- What type of inputs does the SN74LVC14AD have?
The SN74LVC14AD has Schmitt-trigger inputs.
- What is the maximum propagation delay time of the SN74LVC14AD at 3.3 V?
The maximum propagation delay time is 6.4 ns at 3.3 V.
- What is the ESD protection level of the SN74LVC14AD?
The ESD protection exceeds JESD 22: 2000-V human-body model, 200-V machine model, and 1000-V charged-device model.
- Can the SN74LVC14AD be used in mixed-voltage systems?
- What is the temperature range for the SN74LVC14AD?
The SN74LVC14AD is specified to operate over a temperature range of –40°C to +85°C, –40°C to +125°C, and –55°C to +125°C.
- What is the typical output ground bounce (VOLP) at 3.3 V and 25°C?
The typical output ground bounce (VOLP) is less than 0.8 V at VCC = 3.3 V, TA = 25°C.
- What is the typical output VOH undershoot (VOHV) at 3.3 V and 25°C?
The typical output VOH undershoot (VOHV) is greater than 2 V at VCC = 3.3 V, TA = 25°C.
- What package types are available for the SN74LVC14AD?
The SN74LVC14AD is available in various packages including SOIC, SSOP, TVSOP, SO, CDIP, CFP, TSSOP, and VQFN.
- What are some common applications for the SN74LVC14AD?
