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SN74AC14QPWRQ1
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Texas Instruments Inverters, TSSOP-14. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownSN74AC14QPWRQ1
Texas Instruments · Inverters · TSSOP-14
SN74AC14QPWRQ1 from Texas Instruments, in a TSSOP-14. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | 1A | input | Channel 1 input A of the Schmitt-trigger inverter; the device performs Y = A̅ with positive-going threshold VT+ and negative-going threshold VT− for jitter-free switching. |
| 2 | 1Y | output | Channel 1 output Y, the inverted logic output of input 1A. |
| 3 | 2A | input | Channel 2 input A of the Schmitt-trigger inverter; unused inputs must be held at VCC or GND per the recommended operating conditions. |
| 4 | 2Y | output | Channel 2 output Y, the inverted logic output of input 2A. |
| 5 | 3A | input | Channel 3 input A of the Schmitt-trigger inverter; unused inputs must be held at VCC or GND per the recommended operating conditions. |
| 6 | 3Y | output | Channel 3 output Y, the inverted logic output of input 3A. |
| 7 | GND | power_in | Ground reference for the device. |
| 8 | 4Y | output | Channel 4 output Y, the inverted logic output of input 4A. |
| 9 | 4A | input | Channel 4 input A of the Schmitt-trigger inverter; unused inputs must be held at VCC or GND per the recommended operating conditions. |
| 10 | 5Y | output | Channel 5 output Y, the inverted logic output of input 5A. |
| 11 | 5A | input | Channel 5 input A of the Schmitt-trigger inverter; unused inputs must be held at VCC or GND per the recommended operating conditions. |
| 12 | 6Y | output | Channel 6 output Y, the inverted logic output of input 6A. |
| 13 | 6A | input | Channel 6 input A of the Schmitt-trigger inverter; unused inputs must be held at VCC or GND per the recommended operating conditions. |
| 14 | VCC | power_in | Positive supply; the recommended supply range is 2 V to 6 V, and each VCC pin should have a bypass capacitor placed close to the pin. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TSSOP-14 |
| Category | Logic |
| Pins | 14 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Supply voltage | VCC | 2 | 6 | V | 4 | ||
| Input voltage | VI | 0 | V | max printed as VCC | 4 | ||
| Output voltage | VO | 0 | V | max printed as VCC | 4 | ||
| High-level output current | IOH | -12 | mA | VCC = 3 V | 4 | ||
| High-level output current | IOH | -24 | mA | VCC = 4.5 V | 4 | ||
| Low-level output current | IOL | 12 | mA | VCC = 3 V | 4 | ||
| Low-level output current | IOL | 24 | mA | VCC = 4.5 V | 4 | ||
| Operating free-air temperature | TA | -40 | 125 | °C | 4 | ||
| Supply voltage range | VCC | -0.5 | 7 | V | 4 | ||
| Input voltage range | VI | -0.5 | V | max printed as VCC + 0.5 | 4 | ||
| Output voltage range | VO | -0.5 | V | max printed as VCC + 0.5 | 4 | ||
| Input clamp current | IIK | -20 | 20 | mA | VI < 0 or VI > VCC | 4 | |
| Output clamp current | IOK | -20 | 20 | mA | VO < 0 or VO > VCC | 4 | |
| Continuous output current | IO | -50 | 50 | mA | VO = 0 to VCC | 4 | |
| Continuous current through VCC or GND | -200 | 200 | mA | 4 | |||
| Storage temperature range | Tstg | -65 | 150 | °C | 4 | ||
| Positive-going threshold | VT+ | 0.8 | 1.8 | 2.2 | V | VCC = 3 V, TA = 25°C | 5 |
| Positive-going threshold | VT+ | 0.8 | 2.2 | V | VCC = 3 V, over recommended operating free-air temperature range | 5 | |
| Positive-going threshold | VT+ | 1.5 | 2.6 | 3.2 | V | VCC = 4.5 V, TA = 25°C | 5 |
| Positive-going threshold | VT+ | 1.5 | 3.2 | V | VCC = 4.5 V, over recommended operating free-air temperature range | 5 | |
| Positive-going threshold | VT+ | 1.6 | 3.2 | 3.9 | V | VCC = 5.5 V, TA = 25°C | 5 |
| Positive-going threshold | VT+ | 1.6 | 3.9 | V | VCC = 5.5 V, over recommended operating free-air temperature range | 5 | |
| Negative-going threshold | VT- | 0.5 | 0.8 | 1 | V | VCC = 3 V, TA = 25°C | 5 |
| Negative-going threshold | VT- | 0.5 | 1.2 | V | VCC = 3 V, over recommended operating free-air temperature range | 5 | |
| Negative-going threshold | VT- | 0.9 | 1.4 | 1.8 | V | VCC = 4.5 V, TA = 25°C | 5 |
| Negative-going threshold | VT- | 0.9 | 1.8 | V | VCC = 4.5 V, over recommended operating free-air temperature range | 5 | |
| Negative-going threshold | VT- | 1.1 | 1.8 | 2.3 | V | VCC = 5.5 V, TA = 25°C | 5 |
| Negative-going threshold | VT- | 1.1 | 2.3 | V | VCC = 5.5 V, over recommended operating free-air temperature range | 5 | |
| Hysteresis (VT+ - VT-) | ΔVT | 0.3 | 1 | 1.2 | V | VCC = 3 V, TA = 25°C | 5 |
| Hysteresis (VT+ - VT-) | ΔVT | 0.3 | 1.2 | V | VCC = 3 V, over recommended operating free-air temperature range | 5 | |
| Hysteresis (VT+ - VT-) | ΔVT | 0.4 | 1.2 | 1.4 | V | VCC = 4.5 V, TA = 25°C | 5 |
| Hysteresis (VT+ - VT-) | ΔVT | 0.4 | 1.4 | V | VCC = 4.5 V, over recommended operating free-air temperature range | 5 | |
| Hysteresis (VT+ - VT-) | ΔVT | 0.5 | 1.4 | 1.6 | V | VCC = 5.5 V, TA = 25°C | 5 |
| Hysteresis (VT+ - VT-) | ΔVT | 0.5 | 1.6 | V | VCC = 5.5 V, over recommended operating free-air temperature range | 5 | |
| High-level output voltage | VOH | 2.9 | V | IOH = -50 μA, VCC = 3 V | 5 | ||
| High-level output voltage | VOH | 2.56 | V | IOH = -12 mA, VCC = 3 V, TA = 25°C | 5 | ||
| High-level output voltage | VOH | 2.4 | V | IOH = -12 mA, VCC = 3 V, over recommended operating free-air temperature range | 5 | ||
| High-level output voltage | VOH | 3.86 | V | IOH = -24 mA, VCC = 4.5 V, TA = 25°C | 5 | ||
| High-level output voltage | VOH | 3.7 | V | IOH = -24 mA, VCC = 4.5 V, over recommended operating free-air temperature range | 5 | ||
| High-level output voltage | VOH | 4.86 | V | IOH = -24 mA, VCC = 5.5 V, TA = 25°C | 5 | ||
| High-level output voltage | VOH | 4.7 | V | IOH = -24 mA, VCC = 5.5 V, over recommended operating free-air temperature range | 5 | ||
| Low-level output voltage | VOL | 0.1 | V | IOL = 50 μA, VCC = 3 V | 5 | ||
| Low-level output voltage | VOL | 0.36 | V | IOL = 12 mA, VCC = 3 V, TA = 25°C | 5 | ||
| Low-level output voltage | VOL | 0.5 | V | IOL = 12 mA, VCC = 3 V, over recommended operating free-air temperature range | 5 | ||
| Input leakage current | II | -0.1 | 0.1 | μA | VI = VCC or GND, VCC = 5.5 V, TA = 25°C | 5 | |
| Quiescent supply current | ICC | 2 | 40 | μA | VI = VCC or GND, IO = 0, VCC = 5.5 V | 5 | |
| Propagation delay tPLH | tPLH | 1.5 | 5 | 10 | ns | A to Y, VCC = 5 V ± 0.5 V, TA = 25°C | 5 |
| Propagation delay tPLH | tPLH | 1.5 | 12 | ns | A to Y, VCC = 5 V ± 0.5 V, over recommended operating free-air temperature range | 5 | |
| Propagation delay tPHL | tPHL | 1.5 | 5 | 8.5 | ns | A to Y, VCC = 5 V ± 0.5 V, TA = 25°C | 5 |
| Propagation delay tPHL | tPHL | 1.5 | 10 | ns | A to Y, VCC = 5 V ± 0.5 V, over recommended operating free-air temperature range | 5 | |
| Propagation delay tPLH | tPLH | 1.5 | 6 | 13.5 | ns | A to Y, VCC = 3.3 V ± 0.3 V, TA = 25°C | 5 |
| Propagation delay tPLH | tPLH | 1 | 16 | ns | A to Y, VCC = 3.3 V ± 0.3 V, over recommended operating free-air temperature range | 5 | |
| Propagation delay tPHL | tPHL | 1.5 | 6 | 11.5 | ns | A to Y, VCC = 3.3 V ± 0.3 V, TA = 25°C | 5 |
| Propagation delay tPHL | tPHL | 1 | 14 | ns | A to Y, VCC = 3.3 V ± 0.3 V, over recommended operating free-air temperature range | 5 | |
| Input capacitance | Ci | 4.5 | pF | VI = VCC or GND, VCC = 5 V | 5 | ||
| Junction-to-ambient thermal resistance (PW TSSOP) | RθJA | 148 | °C/W | PW (TSSOP) 14 pins | 4 |
CAD (KiCad official)
- Symbol:
SN74AC14QPWRQ1 - Footprint:
Package_SO:TSSOP-14_4.4x5mm_P0.65mm - 3D model: TSSOP-14 (KiCad packages3D, STEP)
- 3D model files:
sn74ac14qpwrq1-etched.step/sn74ac14qpwrq1-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sn74ac14qpwrq1.step/sn74ac14qpwrq1.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (23 pp, sha256
aea32ed9996807bc, retrieved 2026-10-17, tier: lcsc) - Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusoff(skipped (clean text read)), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).