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SN74LS00D
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Texas Instruments Logic Gates, SOIC-14. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+50@@ -0,0 +1,50 @@+# SN74LS00D++**Texas Instruments** · Logic Gates · SOIC-14++SN74LS00D from Texas Instruments, in a SOIC-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 | 1A | input | NAND gate 1 first input; accepts VIH ≥ 2V and VIL ≤ 0.8V logic levels. |+| 2 | 1B | input | NAND gate 1 second input; accepts VIH ≥ 2V and VIL ≤ 0.8V logic levels. |+| 3 | 1Y | output | NAND gate 1 output; sources ≤ 0.4 mA when high or sinks ≤ 8 mA when low. |+| 4 | 2A | input | NAND gate 2 first input; accepts VIH ≥ 2V and VIL ≤ 0.8V logic levels. |+| 5 | 2B | input | NAND gate 2 second input; accepts VIH ≥ 2V and VIL ≤ 0.8V logic levels. |+| 6 | 2Y | output | NAND gate 2 output; sources ≤ 0.4 mA when high or sinks ≤ 8 mA when low. |+| 7 | GND | power_in | Ground (0V) reference potential for the device. |+| 8 | 3Y | output | NAND gate 3 output; sources ≤ 0.4 mA when high or sinks ≤ 8 mA when low. |+| 9 | 3B | input | NAND gate 3 second input; accepts VIH ≥ 2V and VIL ≤ 0.8V logic levels. |+| 10 | 3A | input | NAND gate 3 first input; accepts VIH ≥ 2V and VIL ≤ 0.8V logic levels. |+| 11 | 4Y | output | NAND gate 4 output; sources ≤ 0.4 mA when high or sinks ≤ 8 mA when low. |+| 12 | 4B | input | NAND gate 4 second input; accepts VIH ≥ 2V and VIL ≤ 0.8V logic levels. |+| 13 | 4A | input | NAND gate 4 first input; accepts VIH ≥ 2V and VIL ≤ 0.8V logic levels. |+| 14 | VCC | power_in | Power supply voltage 4.75V to 5.25V nominal for SN74LS00. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SOIC-14 |+| Category | Logic |+| Pins | 14 |++## CAD (KiCad official)++- Symbol: `SN74LS00D`+- Footprint: `Package_SO:SOIC-14_3.9x8.7mm_P1.27mm`+- 3D model: SOIC-14 (KiCad packages3D, STEP)+- 3D model files: `sn74ls00d-etched.step` / `sn74ls00d-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sn74ls00d.step` / `sn74ls00d.glb` are the bare package body.++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/sn7400) (40 pp, sha256 `ac4bbf6801413a20`, retrieved 2026-10-01, tier: lcsc)+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-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](docs/sn74ls00d-datasheet.pdf)
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