Overview
The SN74LVC1G17, produced by Texas Instruments, is a single Schmitt-trigger buffer designed for a wide range of voltage operations from 1.65 V to 5.5 V. This CMOS device is part of the LVC (Low-Voltage CMOS) family and is known for its high output drive capability while maintaining low static power dissipation. The device performs the Boolean function Y = A and is particularly useful in applications where the input signal is slow or noisy due to its Schmitt-trigger action, which provides different input threshold levels for positive-going and negative-going signals.
Key Specifications
| Parameter | Min | Max | Unit |
|---|---|---|---|
| VCC Supply Voltage Range | -0.5 | 6.5 | V |
| Input Voltage Range | -0.5 | 6.5 | V |
| Output Voltage Range (High or Low State) | -0.5 | VCC + 0.5 | V |
| Input Clamp Current (VI < 0) | -50 | -50 | mA |
| Output Clamp Current (VO < 0) | -50 | -50 | mA |
| Continuous Output Current | -50 | 50 | mA |
| Continuous Current through VCC or GND | -100 | 100 | mA |
| Operating Free-Air Temperature | -40 | 125 | °C |
| High-Level Output Current (VCC = 3.3 V) | -16 | -24 | mA |
| Low-Level Output Current (VCC = 3.3 V) | 16 | 24 | mA |
| Propagation Delay Time (tpd) at VCC = 3.3 V, CL = 15 pF | 1.5 | 4.6 | ns |
Key Features
- Available in ultra-small packages such as DPW (0.8 mm × 0.8 mm), SOT-23, SC70, SON, and X2SON, saving significant board space.
- Supports 5-V VCC operation and input voltages up to 5.5 V.
- High output drive capability, making it suitable for driving multiple outputs.
- Schmitt-trigger action provides noise immunity and different input threshold levels for positive-going and negative-going signals.
- Low static power dissipation over a broad VCC operating range.
- High-speed operation up to 100 MHz.
- 5.5 V tolerant inputs, allowing translation down to VCC.
Applications
- Buffering slow or noisy input signals in various digital circuits.
- Driving multiple outputs in high-speed applications.
- Used in LCD/Digital and High-Definition (HDTV) systems.
- Applicable in tablet, enterprise, and video analytics servers.
- Suitable for wireless headset, keyboard, and mouse applications.
Q & A
- What is the operating voltage range of the SN74LVC1G17?
The SN74LVC1G17 operates over a voltage range of 1.65 V to 5.5 V.
- What types of packages are available for the SN74LVC1G17?
The device is available in various packages including DPW, SOT-23, SC70, SON, and X2SON.
- What is the maximum output current of the SN74LVC1G17?
The maximum continuous output current is ±50 mA.
- What is the propagation delay time of the SN74LVC1G17 at 3.3 V and 15 pF load?
The propagation delay time ranges from 1.5 ns to 4.6 ns.
- Is the SN74LVC1G17 suitable for high-speed applications?
Yes, it is suitable for high-speed applications up to 100 MHz.
- What is the Schmitt-trigger action in the SN74LVC1G17?
The Schmitt-trigger action provides different input threshold levels for positive-going and negative-going signals, enhancing noise immunity.
- Can the SN74LVC1G17 handle input voltages above VCC?
Yes, the inputs are 5.5 V tolerant, allowing them to translate down to VCC.
- What are the thermal characteristics of the SN74LVC1G17?
The device has specified thermal resistances such as junction-to-ambient thermal resistance (RθJA) and junction-to-case thermal resistance (RθJC), which vary depending on the package type.
- What are the recommended operating conditions for the SN74LVC1G17?
The recommended operating conditions include specified rise and fall times, high and low input levels, and load current limits to ensure proper operation.
- Can the SN74LVC1G17 be used in safety-critical applications?
No, it is not recommended for use in safety-critical applications without proper evaluation and validation.
