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Contents

README

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HEF4001BT

Nexperia · Gates · SOIC-14

HEF4001BT from Nexperia, in a SOIC-14. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 1A input Gate 1, input A. CMOS logic input to the first 2-input NOR gate. Includes clamp diodes to VDD and VSS, allowing use of series current-limiting resistors to interface signals above VDD.
2 1B input Gate 1, input B. CMOS logic input to the first 2-input NOR gate. Includes clamp diodes to VDD and VSS.
3 1Y output Gate 1 NOR output. Y = NOR(A, B). Standardized symmetrical CMOS push-pull output. Typical drive: IOL ≈ 0.5 mA at VOL = 0.4 V (VDD = 5 V).
4 2Y output Gate 2 NOR output. Y = NOR(A, B). Standardized symmetrical CMOS push-pull output.
5 2A input Gate 2, input A. CMOS logic input to the second 2-input NOR gate. Includes clamp diodes to VDD and VSS.
6 2B input Gate 2, input B. CMOS logic input to the second 2-input NOR gate. Includes clamp diodes to VDD and VSS.
7 VSS power_in Ground reference (0 V). Negative supply rail for all four NOR gates.
8 3A input Gate 3, input A. CMOS logic input to the third 2-input NOR gate. Includes clamp diodes to VDD and VSS.
9 3B input Gate 3, input B. CMOS logic input to the third 2-input NOR gate. Includes clamp diodes to VDD and VSS.
10 3Y output Gate 3 NOR output. Y = NOR(A, B). Standardized symmetrical CMOS push-pull output.
11 4Y output Gate 4 NOR output. Y = NOR(A, B). Standardized symmetrical CMOS push-pull output.
12 4A input Gate 4, input A. CMOS logic input to the fourth 2-input NOR gate. Includes clamp diodes to VDD and VSS.
13 4B input Gate 4, input B. CMOS logic input to the fourth 2-input NOR gate. Includes clamp diodes to VDD and VSS.
14 VDD power_in Positive supply voltage. Operating range 3.0 V to 15.0 V; absolute max 18 V. Supplies all four NOR gates.

Key specifications

Parameter Value
Manufacturer Nexperia
Package SOIC-14
Category Logic
Pins 14

Ordering variants

Same part, different packaging or reel option.

  • HEF4001BTT

CAD (KiCad official)

  • Symbol: HEF4001BT
  • Footprint: Package_SO:SOIC-14_3.9x8.7mm_P1.27mm
  • 3D model: SOIC-14 (KiCad packages3D, STEP)
  • 3D model files: hef4001bt-etched.step / hef4001bt-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); hef4001bt.step / hef4001bt.glb are the bare package body.

Provenance

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

  • Datasheet: Nexperia datasheet (9 pp, sha256 231cccb55ff45222, retrieved 2026-08-17, tier: manufacturer)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF