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SN74AHC14QDRQ1

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Texas Instruments Inverters, SOIC-14. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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3D Model

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Symbol & Footprint

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Datasheet

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Contents

README

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SN74AHC14QDRQ1

Texas Instruments · Inverters · SOIC-14

SN74AHC14QDRQ1 from Texas Instruments, in a SOIC-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 Schmitt-trigger input of inverter 1; unused inputs must be tied to VCC or GND.
2 1Y output Output of inverter 1.
3 2A input Schmitt-trigger input of inverter 2; unused inputs must be tied to VCC or GND.
4 2Y output Output of inverter 2.
5 3A input Schmitt-trigger input of inverter 3; unused inputs must be tied to VCC or GND.
6 3Y output Output of inverter 3.
7 GND power_in Ground pin.
8 4Y output Output of inverter 4.
9 4A input Schmitt-trigger input of inverter 4; unused inputs must be tied to VCC or GND.
10 5Y output Output of inverter 5.
11 5A input Schmitt-trigger input of inverter 5; unused inputs must be tied to VCC or GND.
12 6Y output Output of inverter 6.
13 6A input Schmitt-trigger input of inverter 6; unused inputs must be tied to VCC or GND.
14 VCC power_in Power supply pin, operating range 2 V to 5.5 V.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOIC-14
Category Logic ICs
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 5.5 V 4
Input voltage VI 0 5.5 V 4
Output voltage VO 0 V max = VCC 4
High-level output current IOH -50 mA VCC = 2V 4
High-level output current IOH -4 mA VCC=3.3V±0.3V 4
High-level output current IOH -8 mA VCC=5V±0.5V 4
Low-level output current IOL 50 mA VCC = 2V 4
Low-level output current IOL 4 mA VCC=3.3V±0.3V 4
Low-level output current IOL 8 mA VCC=5V±0.5V 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 7 V 4
Input clamp current IIK -20 mA VI < 0 4
Output clamp current IOK -20 20 mA VO < 0 or VO > VCC 4
Continuous output current IO -25 25 mA VO = 0 to VCC 4
Continuous current through VCC or GND -50 50 mA 4
Storage temperature range Tstg -65 150 °C 4
Junction-to-ambient thermal resistance (D, 14-pin) RθJA 124.6 °C/W D package 4
Positive-going input threshold voltage VT+ 1.2 2.2 V VCC = 3V 5
Positive-going input threshold voltage VT+ 1.75 3.15 V VCC = 4.5V 5
Positive-going input threshold voltage VT+ 2.15 3.85 V VCC = 5.5V 5
Negative-going input threshold voltage VT− 0.9 1.9 V VCC = 3V 5
Negative-going input threshold voltage VT− 1.35 2.75 V VCC = 4.5V 5
Negative-going input threshold voltage VT− 1.65 3.35 V VCC = 5.5V 5
Hysteresis (VT+ − VT−) ΔVT 0.3 1.2 V VCC = 3V 5
Hysteresis (VT+ − VT−) ΔVT 0.4 1.4 V VCC = 4.5V 5
Hysteresis (VT+ − VT−) ΔVT 0.5 1.6 V VCC = 5.5V 5
High-level output voltage VOH 1.9 2 V IOH = -50µA, VCC = 2V 5
High-level output voltage VOH 2.9 3 V IOH = -50µA, VCC = 3V 5
High-level output voltage VOH 4.4 4.5 V IOH = -50µA, VCC = 4.5V 5
High-level output voltage VOH 2.48 V IOH=-4 mA, VCC = 3V 5
High-level output voltage VOH 3.8 V IOH = -8mA, VCC = 4.5V 5
Low-level output voltage VOL 0.1 V IOL = 50μA, VCC = 2V 5
Low-level output voltage VOL 0.5 V IOL=4mA, VCC = 3V 5
Input leakage current II -1 1 μA VI=5.5V or GND, VCC = 0V to 5.5V 5
Supply current ICC 20 μA VI = VCC or GND, IO = 0, VCC = 5.5V 5
Input capacitance Ci 2 10 pF VI=VCC or GND, VCC = 5V 5
Propagation delay A to Y (tPLH, tPHL) tpd 1 8.3 15 ns VCC = 3.3V±0.3V, CL = 15pF 5
Propagation delay A to Y (tPLH, tPHL) tpd 1 10.8 18.5 ns VCC = 3.3V±0.3V, CL = 50pF 5
Propagation delay A to Y (tPLH, tPHL) tpd 1 5.5 10 ns VCC = 5V±0.5V, CL = 15pF 5
Propagation delay A to Y (tPLH, tPHL) tpd 1 7 12 ns VCC = 5V±0.5V, CL = 50pF 5
Power dissipation capacitance Cpd 9 pF No load, f = 1MHz, VCC = 5V, TA = 25°C 6

CAD (KiCad official)

  • Symbol: SN74AHC14QDRQ1
  • Footprint: Package_SO:SOIC-14_3.9x8.7mm_P1.27mm
  • 3D model: SOIC-14 (KiCad packages3D, STEP)
  • 3D model files: sn74ahc14qdrq1-etched.step / sn74ahc14qdrq1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sn74ahc14qdrq1.step / sn74ahc14qdrq1.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Texas Instruments datasheet (28 pp, sha256 f433a685d75de089, retrieved 2026-10-23, 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-sonnet-5-5 (text), consensus claude-sonnet-5-5 (agreed), 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