SN74LVC1G14DBVR - Schmitt-Trigger Inverter SOT-23-5 | TI
MPN: SN74LVC1G14DBVR β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $0.29 | $0.29 |
| 10 | $0.24 | $2.40 |
| 100 | $0.15 | $15.00 |
| 500 | $0.11 | $55.00 |
| 1,000 | $0.08 | $80.00 |
| 3,000 | $0.05 | $150.00 |
Drop-in alternatives for SN74LVC1G14DBVR β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
SN74LVC1G14DBVRQ1
β Drop-Inπ Reference alternative (not in catalog)
SN74LVC1G14MDBVREP
β Drop-Inπ Reference alternative (not in catalog)
SN74AHC1G14DBVR
β Drop-Inπ Reference alternative (not in catalog)
74LVC1G14GV
β Drop-Inπ Reference alternative (not in catalog)
NC7S14M5X
β Drop-Inπ Reference alternative (not in catalog)
SN74LVC1G14DBVR Maximum Ratings & Electrical Characteristics
| Logic Function | Inverter with Schmitt-Trigger input (Y = NOT A) |
| Supply Voltage Range | 1.65 V to 5.5 V |
| Input Type | Schmitt Trigger |
| Output Drive | +/-32 mA at 3.3 V |
| Propagation Delay | 3.7 ns typical at 3.3 V |
| Quiescent Current | 10 uA typical |
| Number of Channels | 1 |
| Partial Power-Down (Ioff) | Yes |
| ESD Protection | 2 kV HBM |
| Operating Temperature | -40 C to +125 C |
| Package | SOT-23-5 (DBV) |
| Mounting Type | Surface Mount |
| Logic Family | LVC (Low-Voltage CMOS) |
| Technology | CMOS |
| RoHS Status | Compliant |
| Reel Packaging | Tape and Reel (DBVR suffix) |
SN74LVC1G14DBVR Pin Configuration
| Pin 1 | A β Schmitt-trigger input |
| Pin 2 | GND β Ground |
| Pin 3 | Y β Inverter output (Y = NOT A) |
| Pin 4 | NC β No connect |
| Pin 5 | VCC β Supply, 1.65 V to 5.5 V |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this digital IC. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
SN74LVC1G14DBVR is suitable for 6 applications: Switch Debouncing, Slow Sensor Signal Conditioning, RC Relaxation Oscillator, Level-Shifting Assist in Mixed-Voltage Boards, Automotive Sensor and Reset Interfaces, Pulse Shaping and Glitch Filtering.
Switch Debouncing
Mechanical switch and keypad contacts bounce for milliseconds, producing multiple edges that corrupt counters and microcontroller inputs. Feeding the switch node through an RC low-pass filter into the SN74LVC1G14 Schmitt input yields one clean edge: the RC removes the bounce and the VT+/VT- hysteresis prevents chatter as the voltage slowly crosses the threshold. With a 10 k pull-up and 100 nF capacitor at 5 V, the output squares up cleanly while consuming only about 10 uA quiescent current.
Recommended
Slow Sensor Signal Conditioning
Photodiode, thermistor-comparator, and other analog-adjacent circuits often produce slow-rising edges that cause multiple transitions at a standard CMOS input threshold. The SN74LVC1G14 Schmitt input squares these edges into fast CMOS levels, and its 1.65 V to 5.5 V range lets it sit on the same rail as the downstream MCU. Its +/-32 mA drive at 3.3 V also allows direct drive of optocoupler LEDs or short transmission lines without a buffer stage.
Recommended
RC Relaxation Oscillator
A capacitor from output to input with a resistor from output to the input node forms a classic two-element relaxation oscillator with this Schmitt inverter. Hysteresis makes the oscillation amplitude and thresholds well-defined, unlike oscillators built from standard inverters. Frequency is set by R and C (roughly 1/(RC) order); typical implementations span 100 Hz to several MHz. Supply sensitivity is modest, and the 3.7 ns output transition keeps harmonics clean for clocking microcontrollers or gating ICs.
Recommended
Level-Shifting Assist in Mixed-Voltage Boards
When a 5 V logic signal must reach a 3.3 V domain, the SN74LVC1G14 can be powered at 3.3 V and accept a 5 V input within its absolute maximum ratings, squaring and inverting the signal in the process. Ioff partial power-down protection keeps the output high-impedance while VCC is off, preventing back-powering during sequencing. The same footprint supports 1.8 V rails, letting one BOM line serve multiple boards.
Recommended
Automotive Sensor and Reset Interfaces
Automotive harnesses carry noise, slow edges, and transients that would chatter a conventional inverter input. The SN74LVC1G14DBVRQ1 variant carries AEC-Q100 qualification with the same SOT-23-5 footprint and 2 kV HBM ESD protection, so a commercial design can migrate to automotive by a drop-in BOM swap. Use it to shape crank/cam-style pulse inputs, watchdog resets, or ignition-sense signals before they reach a C2000 MCU GPIO.
Recommended
Pulse Shaping and Glitch Filtering
Front-end pulses from receivers, encoders, or interrupt sources frequently arrive with rounded edges or sub-noise glitches. A series R plus shunt C into the Schmitt input filters glitches shorter than the RC time constant, while the inverter output presents a sharp, symmetric CMOS pulse for timers and counters. The device consumes about 10 uA typical quiescent current, making it practical even in battery-powered data loggers where gate count is minimal.
Recommended
Recommended Products Summary
Engineering reference data for SN74LVC1G14DBVR β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | SN74LVC1G14DBVRQ1 | SN74LVC1G14MDBVREP | 74LVC1G14GV | NC7S14M5X |
|---|---|---|---|---|---|
| Package | SOT-23-5 (DBV) | SOT-23-5 - same | SOT-23-5 - same | SOT-23-5 - same | SOT-23-5 - same |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | NXP Semiconductors | onsemi |
| Supply Voltage | 1.65 V to 5.5 V | 1.65 V to 5.5 V | 1.65 V to 5.5 V | 1.65 V to 5.5 V | 2.0 V to 5.5 V |
| Output Drive | +/-32 mA at 3.3 V | +/-32 mA at 3.3 V | +/-32 mA at 3.3 V | +/-32 mA at 3.3 V | [DATA_NEEDED] |
| Qualification | Standard commercial | AEC-Q100 | Enhanced Product (high reliability) | Standard commercial | Standard commercial |
| Ioff Power-Down Protection | Yes | Yes | Yes | Yes | [DATA_NEEDED] |
| ESD Rating | 2 kV HBM | 2 kV HBM (higher class per Q1 data) | 2 kV HBM | 2 kV HBM | [DATA_NEEDED] |
| Price (1 pc) | $0.29 as of 2026-08-29 | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] |
Key Differentiators
- Wide 1.65-5.5 V operation with Ioff protection (vs NC7S14M5X)
- Automotive and high-reliability drop-in variants (vs 74LVC1G14GV)
- Strong +/-32 mA drive at 3.3 V (vs SN74AHC1G14DBVR)
Design Notes
Decouple VCC with a 0.1 uF ceramic capacitor placed within 3 mm of pin 5. Although a single gate draws little dynamic current, the +/-32 mA output transitions couple into shared supply impedance on dense boards; local decoupling prevents ground bounce from modulating the Schmitt thresholds. Tie unused area around the SOT-23-5 to GND pour for shielding in noisy environments.
The absolute maximum input voltage must not be exceeded even though the supply range is wide - clamp or divide down signals above the rail. Do not leave the input floating; a floating Schmitt input can sit inside the hysteresis band and oscillate slowly or drift. Add a pull-up or pull-down resistor (10 k to 100 k) if the source can be disconnected.
Hysteresis scales with supply voltage: at 5 V the VT+/VT- spread is widest, at 1.8 V it shrinks substantially, so noise margins must be recalculated for low-voltage rails. For very slow edges (rise times above 1 ms), verify RC interaction with the threshold tables in TI datasheet SCES233 rather than assuming the 3.3 V typical values.
Compliance Information
RoHS compliant per TI/DigiKey product listings. AEC-Q100 qualification applies only to the SN74LVC1G14DBVRQ1 variant, not this standard part.