XL74HC165

@@ -0,0 +1,57 @@+# XL74HC165++**XINLUDA** · Shifting Register · SOP-16++XL74HC165 from XINLUDA, in a SOP-16. 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 | /PL | input | Asynchronous parallel load input (active LOW). When LOW, data on D0-D7 is loaded into the shift register asynchronously. |+| 2 | CP | input | Clock input, LOW-to-HIGH edge-triggered. Shifts serial data on rising edges when /CE is LOW and /PL is HIGH. |+| 3 | D4 | input | Parallel data input bit 4. Loaded into the shift register on /PL LOW. |+| 4 | D5 | input | Parallel data input bit 5. Loaded into the shift register on /PL LOW. |+| 5 | D6 | input | Parallel data input bit 6. Loaded into the shift register on /PL LOW. |+| 6 | D7 | input | Parallel data input bit 7 (MSB, appears first at Q7). Loaded into the shift register on /PL LOW. |+| 7 | /Q7 | output | Complementary serial output from the last stage (inverted Q7). |+| 8 | GND | power_in | Ground reference, 0 V. |+| 9 | Q7 | output | Serial output from the last stage of the shift register. |+| 10 | DS | input | Serial data input. Data entering the register serially on each LOW-to-HIGH CP transition when /PL is HIGH and /CE is LOW. |+| 11 | D0 | input | Parallel data input bit 0. Loaded into the shift register on /PL LOW. |+| 12 | D1 | input | Parallel data input bit 1. Loaded into the shift register on /PL LOW. |+| 13 | D2 | input | Parallel data input bit 2. Loaded into the shift register on /PL LOW. |+| 14 | D3 | input | Parallel data input bit 3. Loaded into the shift register on /PL LOW. |+| 15 | /CE | input | Clock enable input (active LOW). When LOW, CP is enabled; when HIGH, the CP input is disabled (hold). |+| 16 | VCC | power_in | Positive supply voltage, 2.0 V to 6.0 V (recommended). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | XINLUDA |+| Package | SOP-16 |+| Category | Logic |+| Pins | 16 |++## Ordering variants++- `XL74HC165`+- `XL74HC165-TS`+- `XL74HC165XD74HC165`++## CAD (KiCad official)++- Symbol: `XL74HC165`+- Footprint: `Package_SO:SOIC-16_3.9x9.9mm_P1.27mm`+- 3D model: SOP-16 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [XINLUDA datasheet](docs/xl74hc165-datasheet.pdf) (13 pp, sha256 `79f2636f72dd59f5`, 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](docs/xl74hc165-datasheet.pdf)

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