Overview
The SN74LVC1G14DBVTG4 is a single Schmitt-trigger inverter produced by Texas Instruments. This device operates within a voltage range of 1.65 V to 5.5 V and performs the Boolean function Y = A. It is designed to be tolerant to slow or noisy input signals due to its Schmitt-trigger inputs, which provide hysteresis. The device is fully specified for partial-power-down applications using Ioff circuitry, which disables the outputs when the device is powered down to prevent current backflow and potential damage. The SN74LVC1G14 is available in various package types, including SOT-23, SC70, SOT-5X3, SON, X2SON, and DSBGA, making it versatile for different application needs.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| VCC Supply Voltage | 1.65 | - | 5.5 | V |
| VI Input Voltage | 0 | - | 5.5 | V |
| VO Output Voltage | 0 | - | VCC | V |
| IOH High-Level Output Current | -4 | - | -32 | mA |
| IOL Low-Level Output Current | 4 | - | 32 | mA |
| TA Operating Free-Air Temperature | -40 | - | 85/125 | °C |
| VT+ Positive-Going Input Threshold Voltage | 0.79 | 1.16 | 1.56 | V (at VCC = 2.3V) |
| VT– Negative-Going Input Threshold Voltage | 0.58 | 0.87 | 1.14 | V (at VCC = 2.3V) |
| ΔVT Hysteresis (VT+ – VT–) | 0.48 | 0.77 | 1.04 | V (at VCC = 2.3V) |
| tpd Propagation Delay Time (A to Y) | 2.8 | - | 9.9 | ns (at VCC = 1.8V, CL = 15pF) |
Key Features
- Single Schmitt-trigger inverter with hysteresis to tolerate slow or noisy input signals.
- Operates over a wide voltage range of 1.65 V to 5.5 V.
- Available in various package types including SOT-23, SC70, SOT-5X3, SON, X2SON, and DSBGA.
- ESD protection exceeds JESD 22 standards: 2000-V Human-Body Model, 200-V Machine Model, and 1000-V Charged-Device Model.
- Latch-up performance exceeds 100 mA per JESD 78, Class II.
- Ioff circuitry for partial-power-down applications to prevent current backflow and damage.
Applications
- AV Receivers
- Audio Docks: Portable
- Blu-ray Players and Home Theater Systems
- Embedded PCs
- MP3 Players/Recorders (Portable Audio)
- Personal Digital Assistants (PDAs)
- Telecom/Server Power Supplies: Single Controllers (Analog and Digital)
- Solid State Drives (SSD): Client and Enterprise
- TVs: LCD/Digital and High-Definition (HDTV)
- Tablets: Enterprise
- Video Analytics: Server
- Wireless Headsets, Keyboards, and Mice
Q & A
- What is the voltage operation range of the SN74LVC1G14?
The SN74LVC1G14 operates within a voltage range of 1.65 V to 5.5 V.
- What is the function of the Schmitt-trigger inputs in the SN74LVC1G14?
The Schmitt-trigger inputs provide hysteresis, making the device tolerant to slow or noisy input signals.
- What types of packages are available for the SN74LVC1G14?
The device is available in SOT-23, SC70, SOT-5X3, SON, X2SON, and DSBGA packages.
- What is the purpose of the Ioff circuitry in the SN74LVC1G14?
The Ioff circuitry disables the outputs when the device is powered down to prevent current backflow and potential damage.
- What are the ESD protection ratings for the SN74LVC1G14?
The device exceeds JESD 22 standards with 2000-V Human-Body Model, 200-V Machine Model, and 1000-V Charged-Device Model ESD protection.
- What is the latch-up performance of the SN74LVC1G14?
The latch-up performance exceeds 100 mA per JESD 78, Class II.
- What are some common applications of the SN74LVC1G14?
Common applications include AV receivers, audio docks, Blu-ray players, embedded PCs, and various other consumer and industrial electronics.
- What is the operating temperature range for the SN74LVC1G14?
The operating free-air temperature range is –40°C to 85°C for most packages, and up to 125°C for some packages.
- How does the SN74LVC1G14 handle input threshold voltages?
The device has different input threshold levels for positive-going (VT+) and negative-going (VT–) signals, providing hysteresis.
- What is the propagation delay time for the SN74LVC1G14?
The propagation delay time (tpd) from input A to output Y varies depending on VCC and load capacitance, but is typically around 2.8 to 9.9 ns at VCC = 1.8V and CL = 15pF.
