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TC74HC125AFELF

Public Made by Adom

by adom

TOSHIBA Buffer/Driver/Transceiver, SOIC-14-208mil. 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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TC74HC125AFELF

TOSHIBA · Buffer/Driver/Transceiver · SOIC-14-208mil

TC74HC125AFELF from TOSHIBA, in a SOIC-14-208mil. 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 1G input Active-low 3-state control input for buffer 1; high places output 1Y in high impedance (TC74HC125A).
2 1A input Data input of buffer 1, to be tied to VCC or GND if unused, with input range 0 to VCC.
3 1Y tri_state 3-state output of buffer 1 with drive of
4 2G input Active-low 3-state control input for buffer 2; high places output 2Y in high impedance.
5 2A input Data input of buffer 2, to be tied to VCC or GND if unused, with input range 0 to VCC.
6 2Y tri_state 3-state output of buffer 2 with drive of
7 GND power_in Ground (0 V) supply pin.
8 3Y tri_state 3-state output of buffer 3 with drive of
9 3A input Data input of buffer 3, to be tied to VCC or GND if unused, with input range 0 to VCC.
10 3G input Active-low 3-state control input for buffer 3; high places output 3Y in high impedance.
11 4Y tri_state 3-state output of buffer 4 with drive of
12 4A input Data input of buffer 4, to be tied to VCC or GND if unused, with input range 0 to VCC.
13 4G input Active-low 3-state control input for buffer 4; high places output 4Y in high impedance.
14 VCC power_in Positive supply, operating range 2 to 6 V (absolute maximum -0.5 to 7 V).

Key specifications

Parameter Value
Manufacturer TOSHIBA
Package SOIC-14-208mil
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 range VCC -0.5 7 V 3
DC input voltage VIN -0.5 V -0.5 to VCC + 0.5 V 3
DC output voltage VOUT -0.5 V -0.5 to VCC + 0.5 V 3
Input diode current IIK -20 20 mA 3
Output diode current IOK -20 20 mA 3
DC output current IOUT -35 35 mA 3
DC VCC/ground current ICC -75 75 mA 3
Power dissipation (SOP) PD 180 mW SOP 3
Storage temperature Tstg -65 150 °C 3
Supply voltage VCC 2 6 V 3
Input voltage VIN 0 V 0 to VCC 3
Output voltage VOUT 0 V 0 to VCC 3
Operating temperature Topr -40 85 °C 3
Input rise and fall time tr, tf 0 1000 ns VCC = 2.0 V 3
Input rise and fall time tr, tf 0 500 ns VCC = 4.5 V 3
Input rise and fall time tr, tf 0 400 ns VCC = 6.0 V 3
High-level input voltage VIH 1.5 V VCC = 2.0 V, Ta = 25°C and -40 to 85°C 4
High-level input voltage VIH 3.15 V VCC = 4.5 V, Ta = 25°C and -40 to 85°C 4
High-level input voltage VIH 4.2 V VCC = 6.0 V, Ta = 25°C and -40 to 85°C 4
Low-level input voltage VIL 0.5 V VCC = 2.0 V, Ta = 25°C and -40 to 85°C 4
Low-level input voltage VIL 1.35 V VCC = 4.5 V, Ta = 25°C and -40 to 85°C 4
Low-level input voltage VIL 1.8 V VCC = 6.0 V, Ta = 25°C and -40 to 85°C 4
High-level output voltage VOH 1.9 2 V VIN = VIH or VIL, IOH = -20 μA, VCC = 2.0 V, Ta = 25°C 4
High-level output voltage VOH 4.4 4.5 V VIN = VIH or VIL, IOH = -20 μA, VCC = 4.5 V, Ta = 25°C 4
High-level output voltage VOH 5.9 6 V VIN = VIH or VIL, IOH = -20 μA, VCC = 6.0 V, Ta = 25°C 4
High-level output voltage VOH 1.9 V VIN = VIH or VIL, IOH = -20 μA, VCC = 2.0 V, Ta = -40 to 85°C 4
High-level output voltage VOH 4.4 V VIN = VIH or VIL, IOH = -20 μA, VCC = 4.5 V, Ta = -40 to 85°C 4
High-level output voltage VOH 5.9 V VIN = VIH or VIL, IOH = -20 μA, VCC = 6.0 V, Ta = -40 to 85°C 4
High-level output voltage VOH 4.18 4.31 V VIN = VIH or VIL, IOH = -6 mA, VCC = 4.5 V, Ta = 25°C 4
High-level output voltage VOH 5.68 5.8 V VIN = VIH or VIL, IOH = -7.8 mA, VCC = 6.0 V, Ta = 25°C 4
High-level output voltage VOH 4.13 V VIN = VIH or VIL, IOH = -6 mA, VCC = 4.5 V, Ta = -40 to 85°C 4
High-level output voltage VOH 5.63 V VIN = VIH or VIL, IOH = -7.8 mA, VCC = 6.0 V, Ta = -40 to 85°C 4
Low-level output voltage VOL 0 0.1 V VIN = VIH or VIL, IOL = 20 μA, VCC = 2.0 V, Ta = 25°C 4
Low-level output voltage VOL 0.1 V VIN = VIH or VIL, IOL = 20 μA, VCC = 2.0 V, Ta = -40 to 85°C 4
Low-level output voltage VOL 0.17 0.26 V VIN = VIH or VIL, IOL = 6 mA, VCC = 4.5 V, Ta = 25°C 4
Low-level output voltage VOL 0.18 0.26 V VIN = VIH or VIL, IOL = 7.8 mA, VCC = 6.0 V, Ta = 25°C 4
Low-level output voltage VOL 0.33 V VIN = VIH or VIL, IOL = 6 mA, VCC = 4.5 V, Ta = -40 to 85°C 4
3-state output off-state current IOZ -0.5 0.5 μA VIN = VIH or VIL, VOUT = VCC or GND, VCC = 6.0 V, Ta = 25°C 4
3-state output off-state current IOZ -5 5 μA VIN = VIH or VIL, VOUT = VCC or GND, VCC = 6.0 V, Ta = -40 to 85°C 4
Input leakage current IIN -0.1 0.1 μA VIN = VCC or GND, VCC = 6.0 V, Ta = 25°C 4
Input leakage current IIN -1 1 μA VIN = VCC or GND, VCC = 6.0 V, Ta = -40 to 85°C 4
Quiescent supply current ICC 4 μA VIN = VCC or GND, VCC = 6.0 V, Ta = 25°C 4
Quiescent supply current ICC 40 μA VIN = VCC or GND, VCC = 6.0 V, Ta = -40 to 85°C 4
Input capacitance CIN 5 10 pF Ta = 25°C 5
Input capacitance CIN 10 pF Ta = -40 to 85°C 5
Output capacitance COUT 10 pF Ta = 25°C 5
Power dissipation capacitance CPD 41 pF Ta = 25°C, no load 5

CAD (KiCad official)

  • Symbol: TC74HC125AFELF
  • Footprint: Package_SO:SOIC-14_3.9x8.7mm_P1.27mm
  • 3D model: SOIC-14-208mil (KiCad packages3D, STEP)
  • 3D model files: tc74hc125afelf-etched.step / tc74hc125afelf-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tc74hc125afelf.step / tc74hc125afelf.glb are the bare package body.

Provenance

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

  • Datasheet: TOSHIBA datasheet (8 pp, sha256 763b2b012253023a, retrieved 2026-10-24, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-opus-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