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CD74HC21M96
Public Made by Adomby adom
Texas Instruments Logic Gates, SOIC-14. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownCD74HC21M96
Texas Instruments · Logic Gates · SOIC-14
CD74HC21M96 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 | Input channel 1, input A of the first 4-input AND gate, which performs Y = A ● B ● C ● D in positive logic. |
| 2 | 1B | input | Input channel 1, input B of the first 4-input AND gate, which performs Y = A ● B ● C ● D in positive logic. |
| 3 | NC | unconnected | Not internally connected. |
| 4 | 1C | input | Input channel 1, input C of the first 4-input AND gate, which performs Y = A ● B ● C ● D in positive logic. |
| 5 | 1D | input | Input channel 1, input D of the first 4-input AND gate, which performs Y = A ● B ● C ● D in positive logic. |
| 6 | 1Y | output | Output channel 1, output Y of the first AND gate; balanced CMOS push-pull output with continuous output current limited to ±25 mA. |
| 7 | GND | power_in | Ground reference for the device. |
| 8 | 2Y | output | Output channel 2, output Y of the second AND gate; balanced CMOS push-pull output with continuous output current limited to ±25 mA. |
| 9 | 2A | input | Input channel 2, input A of the second 4-input AND gate, which performs Y = A ● B ● C ● D in positive logic. |
| 10 | 2B | input | Input channel 2, input B of the second 4-input AND gate, which performs Y = A ● B ● C ● D in positive logic. |
| 11 | NC | unconnected | Not internally connected. |
| 12 | 2C | input | Input channel 2, input C of the second 4-input AND gate, which performs Y = A ● B ● C ● D in positive logic. |
| 13 | 2D | input | Input channel 2, input D of the second 4-input AND gate, which performs Y = A ● B ● C ● D in positive logic. |
| 14 | VCC | power_in | Positive supply; recommended operating range is 2 V to 6 V, with an absolute maximum of 7 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-14 |
| Category | Logic |
| Pins | 14 |
CAD (KiCad official)
- Symbol:
CD74HC21M96 - Footprint:
Package_SO:SOIC-14_3.9x8.7mm_P1.27mm - 3D model: SOIC-14 (KiCad packages3D, STEP)
- 3D model files:
cd74hc21m96-etched.step/cd74hc21m96-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);cd74hc21m96.step/cd74hc21m96.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (27 pp, sha256
94f7fede76e4cb1d, retrieved 2026-10-08, tier: lcsc) - Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-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).