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SN74AHC14DBR
Public Made by Adomby adom
Texas Instruments Inverters, SSOP-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
markdownSN74AHC14DBR
Texas Instruments · Inverters · SSOP-14
SN74AHC14DBR from Texas Instruments, in a SSOP-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 Schmitt-trigger inverter input; unused inputs must be held at VCC or GND. |
| 2 | 1Y | output | Channel 1 inverter output, rated for ±8 mA drive at VCC = 5 V. |
| 3 | 2A | input | Channel 2 Schmitt-trigger inverter input; unused inputs must be held at VCC or GND. |
| 4 | 2Y | output | Channel 2 inverter output, rated for ±8 mA drive at VCC = 5 V. |
| 5 | 3A | input | Channel 3 Schmitt-trigger inverter input; unused inputs must be held at VCC or GND. |
| 6 | 3Y | output | Channel 3 inverter output, rated for ±8 mA drive at VCC = 5 V. |
| 7 | GND | power_in | Ground. |
| 8 | 4Y | output | Channel 4 inverter output, rated for ±8 mA drive at VCC = 5 V. |
| 9 | 4A | input | Channel 4 Schmitt-trigger inverter input; unused inputs must be held at VCC or GND. |
| 10 | 5Y | output | Channel 5 inverter output, rated for ±8 mA drive at VCC = 5 V. |
| 11 | 5A | input | Channel 5 Schmitt-trigger inverter input; unused inputs must be held at VCC or GND. |
| 12 | 6Y | output | Channel 6 inverter output, rated for ±8 mA drive at VCC = 5 V. |
| 13 | 6A | input | Channel 6 Schmitt-trigger inverter input; unused inputs must be held at VCC or GND. |
| 14 | VCC | power_in | Power supply, operating range 2 V to 5.5 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SSOP-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 | µA | VCC = 2 V | 4 | ||
| High-level output current | IOH | -4 | mA | VCC = 3.3 V ± 0.3 V | 4 | ||
| High-level output current | IOH | -8 | mA | VCC = 5 V ± 0.5 V | 4 | ||
| Low-level output current | IOL | 50 | µA | VCC = 2 V | 4 | ||
| Low-level output current | IOL | 4 | mA | VCC = 3.3 V ± 0.3 V | 4 | ||
| Low-level output current | IOL | 8 | mA | VCC = 5 V ± 0.5 V | 4 | ||
| Operating free-air temperature | TA | -40 | 125 | °C | SN74AHC14 | 4 | |
| Supply voltage | VCC | -0.5 | 7 | V | 4 | ||
| Input voltage | VI | -0.5 | 7 | V | 4 | ||
| Output voltage | VO | -0.5 | V | max = VCC + 0.5 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 | |||
| Virtual operating junction temperature | TJ | 150 | °C | 4 | |||
| Storage temperature | Tstg | -65 | 150 | °C | 4 | ||
| Positive-going input threshold voltage | VT+ | 1.2 | 2.2 | V | VCC = 3 V | 5 | |
| Positive-going input threshold voltage | VT+ | 1.75 | 3.15 | V | VCC = 4.5 V | 5 | |
| Positive-going input threshold voltage | VT+ | 2.15 | 3.85 | V | VCC = 5.5 V | 5 | |
| Negative-going input threshold voltage | VT- | 0.9 | 1.9 | V | VCC = 3 V | 5 | |
| Negative-going input threshold voltage | VT- | 1.35 | 2.75 | V | VCC = 4.5 V | 5 | |
| Negative-going input threshold voltage | VT- | 1.65 | 3.35 | V | VCC = 5.5 V | 5 | |
| Hysteresis (VT+, VT-) | ΔVT | 0.3 | 1.2 | V | VCC = 3 V | 5 | |
| Hysteresis (VT+, VT-) | ΔVT | 0.4 | 1.4 | V | VCC = 4.5 V | 5 | |
| Hysteresis (VT+, VT-) | ΔVT | 0.5 | 1.6 | V | VCC = 5.5 V | 5 | |
| High-level output voltage | VOH | 1.9 | 2 | V | IOH = -50 µA, VCC = 2 V | 5 | |
| High-level output voltage | VOH | 2.9 | 3 | V | IOH = -50 µA, VCC = 3 V | 5 | |
| High-level output voltage | VOH | 4.4 | 4.5 | V | IOH = -50 µA, VCC = 4.5 V | 5 | |
| High-level output voltage | VOH | 2.48 | V | IOH = -4 mA, VCC = 3 V, SNx4AHC14 | 5 | ||
| High-level output voltage | VOH | 3.8 | V | IOL = -8 mA, VCC = 4.5 V, SNx4AHC14 | 5 | ||
| Low-level output voltage | VOL | 0.1 | V | IOH = 50 µA, VCC = 2 V | 6 | ||
| Low-level output voltage | VOL | 0.44 | V | IOH = 4 mA, VCC = 3 V, SN74AHC14 TA = -40°C to 85°C | 6 | ||
| Low-level output voltage | VOL | 0.5 | V | IOH = 4 mA, VCC = 3 V, SN74AHC14 TA = -40°C to 125°C | 6 | ||
| Input leakage current | II | -1 | 1 | µA | VI = 5.5 V or GND, VCC = 0 V to 5.5 V, SNx4AHC14 | 6 | |
| Supply current | ICC | 20 | µA | VI = VCC or GND, IO = 0, VCC = 5.5 V, SNx4AHC14 | 6 | ||
| Input capacitance | CI | 10 | pF | VI = VCC or GND, VCC = 5 V, SN74AHC14 | 6 | ||
| Propagation delay A to Y (low-to-high) | tPLH | 1 | 16 | ns | VCC = 3.3 V ± 0.3 V, CL = 15 pF, SN74AHC14 | 6 | |
| Propagation delay A to Y (high-to-low) | tPHL | 1 | 16 | ns | VCC = 3.3 V ± 0.3 V, CL = 15 pF, SN74AHC14 | 6 | |
| Propagation delay A to Y (low-to-high) | tPLH | 1 | 19.5 | ns | VCC = 3.3 V ± 0.3 V, CL = 50 pF, SN74AHC14 | 6 | |
| Propagation delay A to Y (high-to-low) | tPHL | 1 | 19.5 | ns | VCC = 3.3 V ± 0.3 V, CL = 50 pF, SN74AHC14 | 7 | |
| Propagation delay A to Y (low-to-high) | tPLH | 1 | 10 | ns | VCC = 5 V ± 0.5 V, CL = 15 pF, SN74AHC14 | 7 | |
| Propagation delay A to Y (high-to-low) | tPHL | 1 | 10 | ns | VCC = 5 V ± 0.5 V, CL = 15 pF, SN74AHC14 | 7 | |
| Propagation delay A to Y (low-to-high) | tPLH | 1 | 12 | ns | VCC = 5 V ± 0.5 V, CL = 50 pF, SNx4AHC14 | 7 | |
| Propagation delay A to Y (high-to-low) | tPHL | 1 | 12 | ns | VCC = 5 V ± 0.5 V, CL = 50 pF, SNx4AHC14 | 7 | |
| Junction-to-ambient thermal resistance | RθJA | 112.4 | °C/W | DB (SSOP) 14 pins | 5 | ||
| Junction-to-case (top) thermal resistance | RθJC(top) | 64.3 | °C/W | DB (SSOP) 14 pins | 5 | ||
| Junction-to-board thermal resistance | RθJB | 59.8 | °C/W | DB (SSOP) 14 pins | 5 | ||
| Power dissipation capacitance | Cpd | 9 | pF | No load, f = 1 MHz, VCC = 5 V | 6 |
CAD (KiCad official)
- Symbol:
SN74AHC14DBR - Footprint:
Package_SO:SSOP-14_5.3x6.2mm_P0.65mm - 3D model: SSOP-14 (KiCad packages3D, STEP)
- 3D model files:
sn74ahc14dbr-etched.step/sn74ahc14dbr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sn74ahc14dbr.step/sn74ahc14dbr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (36 pp, sha256
b1dbab4c9cf2e099, retrieved 2026-10-22, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text), consensusclaude-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).