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74HCT125PW

Public Made by Adom

by adom

Nexperia Buffers, Drivers, Receivers, Transceivers, TSSOP-14. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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74HCT125PW

Nexperia · Buffers, Drivers, Receivers, Transceivers · TSSOP-14

74HCT125PW 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 for buffer 1, active LOW; a HIGH level causes output 1Y to assume the high-impedance OFF-state.
2 1A input Data input of buffer 1; the inputs include clamp diodes, so current-limiting resistors can interface them to voltages above VCC.
3 1Y output Data output of buffer 1, which goes to the high-impedance OFF-state when 1OE is HIGH.
4 2OE input Output enable input for buffer 2, active LOW; a HIGH level causes output 2Y to assume the high-impedance OFF-state.
5 2A input Data input of buffer 2; the inputs include clamp diodes, so current-limiting resistors can interface them to voltages above VCC.
6 2Y output Data output of buffer 2, which goes to the high-impedance OFF-state when 2OE is HIGH.
7 GND power_in Ground (0 V) reference for all voltages.
8 3Y output Data output of buffer 3, which goes to the high-impedance OFF-state when 3OE is HIGH.
9 3A input Data input of buffer 3; the inputs include clamp diodes, so current-limiting resistors can interface them to voltages above VCC.
10 3OE input Output enable input for buffer 3, active LOW; a HIGH level causes output 3Y to assume the high-impedance OFF-state.
11 4Y output Data output of buffer 4, which goes to the high-impedance OFF-state when 4OE is HIGH.
12 4A input Data input of buffer 4; the inputs include clamp diodes, so current-limiting resistors can interface them to voltages above VCC.
13 4OE input Output enable input for buffer 4, active LOW; a HIGH level causes output 4Y to assume the high-impedance OFF-state.
14 VCC power_in Supply voltage; 4.5 V to 5.5 V recommended for 74HCT125 (2.0 V to 6.0 V for 74HC125).

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 3
Input clamping current IIK -20 20 mA VI < -0.5 V or VI > VCC + 0.5 V 3
Output clamping current IOK -20 20 mA VO < -0.5 V or VO > VCC + 0.5 V 3
Output current IO -35 35 mA VO = -0.5 V to (VCC + 0.5 V) 3
Supply current ICC 70 mA 3
Ground current IGND -70 mA 3
Storage temperature Tstg -65 150 °C 3
Total power dissipation Ptot 500 mW [2] SOT402-1 (TSSOP14): derates linearly 7.3 mW/K above 81 °C 3
Supply voltage VCC 4.5 5 5.5 V 74HCT125 3
Input voltage VI 0 V 74HCT125; max printed as VCC 3
Output voltage VO 0 V 74HCT125; max printed as VCC 3
Ambient temperature Tamb -40 25 125 °C 74HCT125 3
Input transition rise and fall rate Δt/ΔV 1.67 139 ns/V VCC = 4.5 V 3
HIGH-level input voltage VIH 2 1.6 V VCC = 4.5 V to 5.5 V; min/max at -40 °C to +125 °C, typ at 25 °C 5
LOW-level input voltage VIL 1.2 0.8 V VCC = 4.5 V to 5.5 V; min/max at -40 °C to +125 °C, typ at 25 °C 5
HIGH-level output voltage VOH 4.4 4.5 V VI = VIH or VIL; VCC = 4.5 V; IO = -20 μA; min at -40 °C to +125 °C, typ at 25 °C 5
HIGH-level output voltage VOH 3.7 4.32 V VI = VIH or VIL; VCC = 4.5 V; IO = -6 mA; min at -40 °C to +125 °C, typ at 25 °C 5
LOW-level output voltage VOL 0 0.1 V VI = VIH or VIL; VCC = 4.5 V; IO = 20 μA; max at -40 °C to +125 °C, typ at 25 °C 5
LOW-level output voltage VOL 0.16 0.4 V VI = VIH or VIL; VCC = 4.5 V; IO = 6.0 mA; max at -40 °C to +125 °C, typ at 25 °C 5
Input leakage current II -1 1 μA VI = VCC or GND; VCC = 5.5 V; at -40 °C to +125 °C 5
OFF-state output current IOZ -10 10 μA VI = VIH or VIL; VCC = 5.5 V; VO = VCC or GND; at -40 °C to +125 °C 5
Supply current ICC 160 μA VI = VCC or GND; IO = 0 A; VCC = 5.5 V; at -40 °C to +125 °C 5
Additional supply current ΔICC 100 490 μA per input pin; VI = VCC - 2.1 V; IO = 0 A; other inputs at VCC or GND; VCC = 4.5 V to 5.5 V; max at -40 °C to +125 °C, typ at 25 °C 5
Input capacitance CI 3.5 pF 5
Propagation delay tpd 15 38 ns nA to nY; see Fig. 4; VCC = 4.5 V; max at -40 °C to +125 °C, typ at 25 °C 6
Propagation delay tpd 12 ns nA to nY; VCC = 5 V; CL = 15 pF 6
Enable time ten 15 42 ns nOE to nY; see Fig. 5; VCC = 4.5 V; max at -40 °C to +125 °C, typ at 25 °C 6
Disable time tdis 15 38 ns nOE to nY; see Fig. 5; VCC = 4.5 V; max at -40 °C to +125 °C, typ at 25 °C 6
Transition time tt 5 18 ns nY; see Fig. 4; max at -40 °C to +125 °C, typ at 25 °C 6
Power dissipation capacitance CPD 24 pF CL = 50 pF; f = 1 MHz; VI = GND to VCC - 1.5 V 6

CAD (KiCad official)

  • Symbol: 74HCT125PW
  • Footprint: Package_SO:TSSOP-14_4.4x5mm_P0.65mm
  • 3D model: TSSOP-14 (KiCad packages3D, STEP)
  • 3D model files: 74hct125pw-etched.step / 74hct125pw-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 74hct125pw.step / 74hct125pw.glb are the bare package body.

Provenance

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

  • Datasheet: Nexperia datasheet (13 pp, sha256 3b5da3a3dcae2624, retrieved 2026-10-17, tier: manufacturer)
  • 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