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docs 74lcx00ft: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
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74lcx00ft-etched.fit.json 74lcx00ft: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
74lcx00ft-etched.glb 74lcx00ft: white body in tscircuit (pre-1.8 etch structure under an assembly instance); Ray 2026-10-19: black IC body w… · Ray 15d ago
74lcx00ft-etched.step 74lcx00ft: white body in tscircuit (pre-1.8 etch structure under an assembly instance); Ray 2026-10-19: black IC body w… · Ray 15d ago
74lcx00ft.glb Publish 0.1.0 · Ray 1mo ago
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page.json 74lcx00ft: white body in tscircuit (pre-1.8 etch structure under an assembly instance); Ray 2026-10-19: black IC body w… · Ray 15d ago
README.md 74lcx00ft: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray 1mo ago

74LCX00FT

TOSHIBA · Gates · TSSOP-14

74LCX00FT from TOSHIBA, in a TSSOP-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 input with 5-V tolerance (VIN 0 to 5.5 V). High-level input voltage VIH = VCC x 0.9 min (1.65-2.3 V range).
2 1B input Gate 1, input B. CMOS input with 5-V tolerance. Pairs with 1A into the first NAND gate.
3 1Y output Gate 1 NAND output. Y = NAND(1A, 1B). Drives
4 2A input Gate 2, input A. CMOS input with 5-V tolerance.
5 2B input Gate 2, input B. CMOS input with 5-V tolerance.
6 2Y output Gate 2 NAND output. Y = NAND(2A, 2B). Drives 24 mA min at VCC = 3.0 V.
7 GND power_in Ground reference (0 V) for the device.
8 3Y output Gate 3 NAND output. Y = NAND(3A, 3B). Drives 24 mA min at VCC = 3.0 V.
9 3A input Gate 3, input A. CMOS input with 5-V tolerance.
10 3B input Gate 3, input B. CMOS input with 5-V tolerance.
11 4Y output Gate 4 NAND output. Y = NAND(4A, 4B). Drives 24 mA min at VCC = 3.0 V.
12 4A input Gate 4, input A. CMOS input with 5-V tolerance.
13 4B input Gate 4, input B. CMOS input with 5-V tolerance.
14 VCC power_in Positive supply voltage. Operating range VCC = 1.65 to 3.6 V (absolute max 6.5 V). Bypass with a 0.1 uF ceramic close to the pin.

Key specifications

Parameter Value
Manufacturer TOSHIBA
Package TSSOP-14
Category Logic
Pins 14

Ordering variants

Same part, different packaging or reel option.

  • 74LCX00FT

CAD (KiCad official)

  • Symbol: 74LCX00FT
  • Footprint: Package_SO:TSSOP-14_4.4x5mm_P0.65mm
  • 3D model: TSSOP-14 (KiCad packages3D, STEP)
  • 3D model files: 74lcx00ft-etched.step / 74lcx00ft-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 74lcx00ft.step / 74lcx00ft.glb are the bare package body.

Provenance

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

  • Datasheet: TOSHIBA datasheet (8 pp, sha256 0449fc2857d4ecdd, retrieved 2026-08-17, tier: lcsc)
  • 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