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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.

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SN74AC14QPWRQ1

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.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sn74ac14qpwrq1.step / sn74ac14qpwrq1.glb are 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, primary claude-haiku-5-5 (text), consensus off (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).

Datasheet PDF