component
74AHC126PW
Public Made by Adomby adom
Nexperia Buffers, Drivers, Receivers, Transceivers, 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
markdown74AHC126PW
Nexperia · Buffers, Drivers, Receivers, Transceivers · TSSOP-14
74AHC126PW from Nexperia, 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 | 1OE | input | Output enable input 1 (active HIGH); a LOW level puts output 1Y into the high-impedance OFF-state. |
| 2 | 1A | input | Data input 1; inputs are overvoltage tolerant and accept voltages higher than VCC. |
| 3 | 1Y | tri_state | Data output 1; becomes high-impedance when 1OE is LOW. |
| 4 | 2OE | input | Output enable input 2 (active HIGH); a LOW level puts output 2Y into the high-impedance OFF-state. |
| 5 | 2A | input | Data input 2; inputs are overvoltage tolerant and accept voltages higher than VCC. |
| 6 | 2Y | tri_state | Data output 2; becomes high-impedance when 2OE is LOW. |
| 7 | GND | power_in | Ground (0 V) reference for all voltages on the device. |
| 8 | 3Y | tri_state | Data output 3; becomes high-impedance when 3OE is LOW. |
| 9 | 3A | input | Data input 3; inputs are overvoltage tolerant and accept voltages higher than VCC. |
| 10 | 3OE | input | Output enable input 3 (active HIGH); a LOW level puts output 3Y into the high-impedance OFF-state. |
| 11 | 4Y | tri_state | Data output 4; becomes high-impedance when 4OE is LOW. |
| 12 | 4A | input | Data input 4; inputs are overvoltage tolerant and accept voltages higher than VCC. |
| 13 | 4OE | input | Output enable input 4 (active HIGH); a LOW level puts output 4Y into the high-impedance OFF-state. |
| 14 | VCC | power_in | Supply voltage; recommended range is 2.0 V to 5.5 V for 74AHC126 and 4.5 V to 5.5 V for 74AHCT126. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Nexperia |
| 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 | -0.5 | 7 | V | 4 | ||
| input voltage | VI | -0.5 | 7 | V | 4 | ||
| input clamping current | IIK | -20 | mA | VI < -0.5 V | 4 | ||
| output clamping current | IOK | -20 | 20 | mA | VO < -0.5 V or VO > VCC + 0.5 V | 4 | |
| output current | IO | -25 | 25 | mA | VO = -0.5 V to (VCC + 0.5 V) | 4 | |
| supply current | ICC | 75 | mA | 4 | |||
| ground current | IGND | -75 | mA | 4 | |||
| storage temperature | Tstg | -65 | 150 | °C | 4 | ||
| total power dissipation | Ptot | 500 | mW | Tamb = -40 °C to +125 °C | 4 | ||
| supply voltage (74AHC126) | VCC | 2 | 5 | 5.5 | V | 4 | |
| input voltage (74AHC126) | VI | 0 | 5.5 | V | 4 | ||
| output voltage (74AHC126) | VO | 0 | V | 4 | |||
| ambient temperature (74AHC126) | Tamb | -40 | 25 | 125 | °C | 4 | |
| input transition rise and fall rate | Δt/ΔV | 100 | ns/V | VCC = 3.0 V to 3.6 V | 4 | ||
| input transition rise and fall rate | Δt/ΔV | 20 | ns/V | VCC = 4.5 V to 5.5 V | 4 | ||
| HIGH-level input voltage | VIH | 1.5 | V | VCC = 2.0 V; -40 °C to +125 °C | 5 | ||
| HIGH-level input voltage | VIH | 2.1 | V | VCC = 3.0 V; -40 °C to +125 °C | 5 | ||
| HIGH-level input voltage | VIH | 3.85 | V | VCC = 5.5 V; -40 °C to +125 °C | 5 | ||
| LOW-level input voltage | VIL | 0.5 | V | VCC = 2.0 V; -40 °C to +125 °C | 5 | ||
| LOW-level input voltage | VIL | 0.9 | V | VCC = 3.0 V; -40 °C to +125 °C | 5 | ||
| LOW-level input voltage | VIL | 1.65 | V | VCC = 5.5 V; -40 °C to +125 °C | 5 | ||
| HIGH-level output voltage | VOH | 1.9 | 2 | V | VI = VIH or VIL; IO = -50 μA; VCC = 2.0 V; -40 °C to +125 °C | 5 | |
| HIGH-level output voltage | VOH | 2.9 | 3 | V | VI = VIH or VIL; IO = -50 μA; VCC = 3.0 V; -40 °C to +125 °C | 5 | |
| HIGH-level output voltage | VOH | 4.4 | 4.5 | V | VI = VIH or VIL; IO = -50 μA; VCC = 4.5 V; -40 °C to +125 °C | 5 | |
| HIGH-level output voltage | VOH | 2.4 | V | VI = VIH or VIL; IO = -4.0 mA; VCC = 3.0 V; -40 °C to +125 °C | 5 | ||
| HIGH-level output voltage | VOH | 3.7 | V | VI = VIH or VIL; IO = -8.0 mA; VCC = 4.5 V; -40 °C to +125 °C | 5 | ||
| LOW-level output voltage | VOL | 0 | 0.1 | V | VI = VIH or VIL; IO = 50 μA; VCC = 2.0 V; -40 °C to +125 °C | 5 | |
| LOW-level output voltage | VOL | 0.55 | V | VI = VIH or VIL; IO = 4.0 mA; VCC = 3.0 V; -40 °C to +125 °C | 5 | ||
| input leakage current | II | 2 | μA | VI = 5.5 V or GND; VCC = 0 V to 5.5 V; -40 °C to +125 °C | 5 | ||
| OFF-state output current | IOZ | -10 | 10 | μA | VI = VIH or VIL; VO = VCC or GND; VCC = 5.5 V; -40 °C to +125 °C | 5 | |
| supply current | ICC | 2 | 40 | μA | VI = VCC or GND; IO = 0 A; VCC = 5.5 V; -40 °C to +125 °C | 5 | |
| input capacitance | CI | 3 | 10 | pF | VI = VCC or GND | 5 | |
| output capacitance | CO | 4 | pF | 5 | |||
| propagation delay | tpd | 1 | 4.7 | 10 | ns | nA to nY; VCC = 3.0 V to 3.6 V; CL = 15 pF; -40 °C to +125 °C | 6 |
| propagation delay | tpd | 1 | 6.7 | 14.5 | ns | nA to nY; VCC = 3.0 V to 3.6 V; CL = 50 pF; -40 °C to +125 °C | 6 |
| propagation delay | tpd | 1 | 3.3 | 7 | ns | nA to nY; VCC = 4.5 V to 5.5 V; CL = 15 pF; -40 °C to +125 °C | 6 |
| propagation delay | tpd | 1 | 4.7 | 9.5 | ns | nA to nY; VCC = 4.5 V to 5.5 V; CL = 50 pF; -40 °C to +125 °C | 6 |
| enable time | ten | 1 | 5.3 | 10 | ns | nOE to nY; VCC = 3.0 V to 3.6 V; CL = 15 pF; -40 °C to +125 °C | 7 |
| enable time | ten | 1 | 7.6 | 14.5 | ns | nOE to nY; VCC = 3.0 V to 3.6 V; CL = 50 pF; -40 °C to +125 °C | 7 |
| enable time | ten | 1 | 3.6 | 7 | ns | nOE to nY; VCC = 4.5 V to 5.5 V; CL = 15 pF; -40 °C to +125 °C | 7 |
| enable time | ten | 1 | 5.1 | 9.5 | ns | nOE to nY; VCC = 4.5 V to 5.5 V; CL = 50 pF; -40 °C to +125 °C | 7 |
| disable time | tdis | 1 | 6.6 | 12.5 | ns | nOE to nY; VCC = 3.0 V to 3.6 V; CL = 15 pF; -40 °C to +125 °C | 7 |
| disable time | tdis | 1 | 9.4 | 16.5 | ns | nOE to nY; VCC = 3.0 V to 3.6 V; CL = 50 pF; -40 °C to +125 °C | 7 |
| disable time | tdis | 1 | 4.7 | 8.5 | ns | nOE to nY; VCC = 4.5 V to 5.5 V; CL = 15 pF; -40 °C to +125 °C | 7 |
| disable time | tdis | 1 | 6.7 | 11 | ns | nOE to nY; VCC = 4.5 V to 5.5 V; CL = 50 pF; -40 °C to +125 °C | 7 |
| power dissipation capacitance | CPD | 10 | pF | fi = 1 MHz; VI = GND to VCC | 7 |
CAD (KiCad official)
- Symbol:
74AHC126PW - Footprint:
Package_SO:TSSOP-14_4.4x5mm_P0.65mm - 3D model: TSSOP-14 (KiCad packages3D, STEP)
- 3D model files:
74ahc126pw-etched.step/74ahc126pw-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);74ahc126pw.step/74ahc126pw.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Nexperia datasheet (15 pp, sha256
4f0783db78cd6d6e, retrieved 2026-10-18, tier: manufacturer) - 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).