component
74HC164M
Public Made by Adomby adom
HGSEMI Shifting Register, SOIC-14. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+59@@ -0,0 +1,59 @@+# 74HC164M++**HGSEMI** · Shifting Register · SOIC-14++74HC164M from HGSEMI, 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 | A | input | Serial data input A. Internally ANDed with input B to feed the first stage of the shift register; sampled on the rising edge of CLOCK. |+| 2 | B | input | Serial data input B. Internally ANDed with input A to feed the first stage of the shift register; sampled on the rising edge of CLOCK. |+| 3 | QA | output | Parallel data output stage A (first stage of the shift register). |+| 4 | QB | output | Parallel data output stage B. |+| 5 | QC | output | Parallel data output stage C. |+| 6 | QD | output | Parallel data output stage D. |+| 7 | GND | power_in | Ground / power supply return (0 V reference). |+| 8 | CLOCK | input | Shift clock input. On each rising edge the eight register bits shift right one position and the A·B product is loaded into QA. Minimum pulse width 18 ns (typ). |+| 9 | CLEAR | input | Active-low asynchronous clear. Driving this pin low forces all outputs QA-QH to logic 0 regardless of CLOCK. |+| 10 | QE | output | Parallel data output stage E. |+| 11 | QF | output | Parallel data output stage F. |+| 12 | QG | output | Parallel data output stage G. |+| 13 | QH | output | Parallel data output stage H (last stage of the shift register; used as serial-out for cascading). |+| 14 | VCC | power_in | Positive supply, 2.0 V to 6.0 V (absolute max 6.5 V). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | HGSEMI |+| Package | SOIC-14 |+| Category | Logic |+| Pins | 14 |++## Ordering variants++Same part, different packaging or reel option.++- `74HC164MN`+- `74HC164MM/TR`+- `74HC164MMT/TR`+- `74HC164MLQ/TR`++## CAD (KiCad official)++- Symbol: `74HC164M`+- Footprint: `Package_SO:SOIC-14_3.9x8.7mm_P1.27mm`+- 3D model: SOIC-14 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [HGSEMI datasheet](docs/74hc164m-datasheet.pdf) (8 pp, sha256 `c4cbc1a54be27507`, retrieved 2026-08-17, 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:** `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](docs/74hc164m-datasheet.pdf)
page.jsonadded+34@@ -0,0 +1,34 @@+{+ "slug": "74hc164m",+ "version": "0.1.0",+ "type": "component",+ "description": "HGSEMI Shifting Register, SOIC-14. Datasheet-verified pinout, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "logic",+ "74hc164m"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "74hc164m.kicad_sym",+ "74hc164m.kicad_mod",+ "74hc164m.glb",+ "74hc164m.step",+ "74hc164m.lbr",+ "docs/hero.png",+ "docs/74hc164m-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html"+ ],+ "visibility": "public",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}