Overview
The 74V1G14STR is an advanced high-speed CMOS single Schmitt inverter produced by STMicroelectronics. Fabricated using sub-micron silicon gate and double-layer metal wiring C2MOS technology, this device is designed to provide high noise immunity and stable output. It is particularly useful for interfacing between 5V and 3V systems and features hysteresis, which makes it tolerant to slow or noisy input signals. The device includes power down protection on input and is equipped with protection circuits against static discharge, ensuring ESD immunity and transient excess voltage protection.
Key Specifications
| Parameter | Value | Unit | Conditions |
|---|---|---|---|
| Supply Voltage (VCC) | 2 to 5.5 | V | Operating Range |
| Input Voltage (VI) | 0 to 5.5 | V | Operating Range |
| Output Voltage (VO) | 0 to VCC | V | Operating Range |
| Propagation Delay Time (tPLH, tPHL) | 4.3 ns (typ.) at VCC = 5V | ns | CL = 15 pF, tr = tf = 3 ns |
| High Level Threshold Voltage (Vt+) | 1.75 to 3.15 V at VCC = 4.5V | V | |
| Low Level Threshold Voltage (Vt-) | 1.35 to 2.75 V at VCC = 4.5V | V | |
| Hysteresis Voltage (Vh) | 0.4 to 1.4 V at VCC = 4.5V | V | |
| Output Current (IOH, IOL) | ±8 mA (min) at VCC = 4.5V | mA | |
| Quiescent Supply Current (ICC) | 1 to 20 µA at VCC = 5.5V | µA | VI = VCC or GND |
| Operating Temperature | -55 to 125 °C | °C |
Key Features
- High-Speed Operation: Propagation delay time of 4.3 ns (typ.) at VCC = 5V.
- Low Power Dissipation: Quiescent supply current of 1 to 20 µA at VCC = 5.5V.
- Hysteresis: Provides high noise immunity and tolerance to slow or noisy input signals.
- Power Down Protection: Input protection up to 7V regardless of the supply voltage.
- ESD Immunity: Protected against static discharge with transient excess voltage protection.
- Symmetrical Output Impedance: |IOH| = IOL = 8 mA (min) at VCC = 4.5V.
- Improved Latch-Up Immunity: Ensures robust operation in various environments.
Applications
- Interface Between 5V and 3V Systems: Ideal for voltage translation in mixed-voltage systems.
- Line Receivers: Suitable for use with slow rise/fall input signals due to its Schmitt trigger function.
- Noisy Environments: Effective in applications where noise immunity is crucial.
- Low Power Designs: Appropriate for battery-powered devices and other low-power applications.
Q & A
- What is the operating voltage range of the 74V1G14STR?
The operating voltage range is from 2V to 5.5V.
- What is the typical propagation delay time of the 74V1G14STR?
The typical propagation delay time is 4.3 ns at VCC = 5V.
- Does the 74V1G14STR have hysteresis?
- What is the maximum output current of the 74V1G14STR?
The maximum output current is ±8 mA at VCC = 4.5V.
- Is the 74V1G14STR protected against static discharge?
- What is the operating temperature range of the 74V1G14STR?
The operating temperature range is from -55°C to 125°C.
- Can the 74V1G14STR be used in mixed-voltage systems?
- What is the quiescent supply current of the 74V1G14STR?
The quiescent supply current is 1 to 20 µA at VCC = 5.5V.
- Does the 74V1G14STR have balanced propagation delays?
- What package types are available for the 74V1G14STR?
The device is available in SOT23-5L and SOT323-5L packages.
