component
SN74HCT374DBR
Public Made by Adomby adom
Texas Instruments Flip Flops, SSOP-20-208mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+57@@ -0,0 +1,57 @@+# SN74HCT374DBR++**Texas Instruments** · Flip Flops · SSOP-20-208mil++SN74HCT374DBR from Texas Instruments, in a SSOP-20-208mil. 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 | OE | input | Active-low output enable that places the eight outputs in normal logic state or high-impedance state without affecting internal flip-flop operation. |+| 2 | 1Q | tri_state | Flip-flop 1 3-state output, drives ±6 mA at 5 V and goes high-impedance when OE is high. |+| 3 | 1D | input | Data input for flip-flop 1, captured on the positive transition of CLK. |+| 4 | 2D | input | Data input for flip-flop 2, captured on the positive transition of CLK. |+| 5 | 2Q | tri_state | Flip-flop 2 3-state output, drives ±6 mA at 5 V and goes high-impedance when OE is high. |+| 6 | 3Q | tri_state | Flip-flop 3 3-state output, drives ±6 mA at 5 V and goes high-impedance when OE is high. |+| 7 | 3D | input | Data input for flip-flop 3, captured on the positive transition of CLK. |+| 8 | 4D | input | Data input for flip-flop 4, captured on the positive transition of CLK. |+| 9 | 4Q | tri_state | Flip-flop 4 3-state output, drives ±6 mA at 5 V and goes high-impedance when OE is high. |+| 10 | GND | power_in | Ground reference for the device. |+| 11 | CLK | input | Clock input; Q outputs take the D logic levels on its positive transition. |+| 12 | 5Q | tri_state | Flip-flop 5 3-state output, drives ±6 mA at 5 V and goes high-impedance when OE is high. |+| 13 | 5D | input | Data input for flip-flop 5, captured on the positive transition of CLK. |+| 14 | 6D | input | Data input for flip-flop 6, captured on the positive transition of CLK. |+| 15 | 6Q | tri_state | Flip-flop 6 3-state output, drives ±6 mA at 5 V and goes high-impedance when OE is high. |+| 16 | 7Q | tri_state | Flip-flop 7 3-state output, drives ±6 mA at 5 V and goes high-impedance when OE is high. |+| 17 | 7D | input | Data input for flip-flop 7, captured on the positive transition of CLK. |+| 18 | 8D | input | Data input for flip-flop 8, captured on the positive transition of CLK. |+| 19 | 8Q | tri_state | Flip-flop 8 3-state output, drives ±6 mA at 5 V and goes high-impedance when OE is high. |+| 20 | VCC | power_in | Supply voltage, 4.5 V to 5.5 V recommended, with a 0.1-µF bypass capacitor placed close to the pin. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SSOP-20-208mil |+| Category | Logic |+| Pins | 20 |++## CAD (KiCad official)++- Symbol: `SN74HCT374DBR`+- Footprint: `Package_SO:SSOP-20_5.3x7.2mm_P0.65mm`+- 3D model: SSOP-20-208mil (KiCad packages3D, STEP)+- 3D model files: `sn74hct374dbr-etched.step` / `sn74hct374dbr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sn74hct374dbr.step` / `sn74hct374dbr.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/sn74hct374) (30 pp, sha256 `d6967f49e2d44280`, 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`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-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/sn74hct374dbr-datasheet.pdf)
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Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "logic",+ "sn74hct374dbr",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "sn74hct374dbr.kicad_sym",+ "sn74hct374dbr.kicad_mod",+ "sn74hct374dbr.glb",+ "sn74hct374dbr.step",+ "sn74hct374dbr.lbr",+ "docs/hero.png",+ "docs/sn74hct374dbr-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html",+ "sn74hct374dbr-hero.glb",+ "sn74hct374dbr-hero.overlay.json"+ ],+ "component": {+ "mpn": "SN74HCT374DBR",+ "manufacturer": "Texas Instruments",+ "package": "SSOP-20-208mil",+ "pin_count": 20,+ "category": "Logic",+ "subcategory": "Flip Flops",+ "datasheet": "https://www.ti.com/cn/lit/gpn/sn74hct374",+ "parts": {+ "symbol": "sn74hct374dbr.kicad_sym",+ "footprint": "sn74hct374dbr.kicad_mod",+ "model_3d": "sn74hct374dbr-hero.glb",+ "model_3d_plain": "sn74hct374dbr.glb",+ "model_3d_step": "sn74hct374dbr-etched.step",+ "model_3d_step_plain": "sn74hct374dbr.step",+ "lbr": "sn74hct374dbr.lbr"+ },+ "distributor_links": {+ "lcsc": "C2860366",+ "digikey": "296-8415-2-ND",+ "mouser": "595-SN74HCT374DBR"+ },+ "distributor_check": {+ "checked_at": "2026-10-08T00:58:28Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "296-8415-2-ND",+ "status": "found",+ "lifecycle": "Active"+ },+ "mouser": {+ "pn": "595-SN74HCT374DBR",+ "status": "found",+ "lifecycle": "End of Life"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "OE",+ "type": "input",+ "description": "Active-low output enable that places the eight outputs in normal logic state or high-impedance state without affecting internal flip-flop operation."+ },+ {+ "number": "2",+ "name": "1Q",+ "type": "tri_state",+ "description": "Flip-flop 1 3-state output, drives ±6 mA at 5 V and goes high-impedance when OE is high."+ },+ {+ "number": "3",+ "name": "1D",+ "type": "input",+ "description": "Data input for flip-flop 1, captured on the positive transition of CLK."+ },+ {+ "number": "4",+ "name": "2D",+ "type": "input",+ "description": "Data input for flip-flop 2, captured on the positive transition of CLK."+ },+ {+ "number": "5",+ "name": "2Q",+ "type": "tri_state",+ "description": "Flip-flop 2 3-state output, drives ±6 mA at 5 V and goes high-impedance when OE is high."+ },+ {+ "number": "6",+ "name": "3Q",+ "type": "tri_state",+ "description": "Flip-flop 3 3-state output, drives ±6 mA at 5 V and goes high-impedance when OE is high."+ },+ {+ "number": "7",+ "name": "3D",+ "type": "input",+ "description": "Data input for flip-flop 3, captured on the positive transition of CLK."+ },+ {+ "number": "8",+ "name": "4D",+ "type": "input",+ "description": "Data input for flip-flop 4, captured on the positive transition of CLK."+ },+ {+ "number": "9",+ "name": "4Q",+ "type": "tri_state",+ "description": "Flip-flop 4 3-state output, drives ±6 mA at 5 V and goes high-impedance when OE is high."+ },+ {+ "number": "10",+ "name": "GND",+ "type": "power_in",+ "description": "Ground reference for the device."+ },+ {+ "number": "11",+ "name": "CLK",+ "type": "input",+ "description": "Clock input; Q outputs take the D logic levels on its positive transition."+ },+ {+ "number": "12",+ "name": "5Q",+ "type": "tri_state",+ "description": "Flip-flop 5 3-state output, drives ±6 mA at 5 V and goes high-impedance when OE is high."+ },+ {+ "number": "13",+ "name": "5D",+ "type": "input",+ "description": "Data input for flip-flop 5, captured on the positive transition of CLK."+ },+ {+ "number": "14",+ "name": "6D",+ "type": "input",+ "description": "Data input for flip-flop 6, captured on the positive transition of CLK."+ },+ {+ "number": "15",+ "name": "6Q",+ "type": "tri_state",+ "description": "Flip-flop 6 3-state output, drives ±6 mA at 5 V and goes high-impedance when OE is high."+ },+ {+ "number": "16",+ "name": "7Q",+ "type": "tri_state",+ "description": "Flip-flop 7 3-state output, drives ±6 mA at 5 V and goes high-impedance when OE is high."+ },+ {+ "number": "17",+ "name": "7D",+ "type": "input",+ "description": "Data input for flip-flop 7, captured on the positive transition of CLK."+ },+ {+ "number": "18",+ "name": "8D",+ "type": "input",+ "description": "Data input for flip-flop 8, captured on the positive transition of CLK."+ },+ {+ "number": "19",+ "name": "8Q",+ "type": "tri_state",+ "description": "Flip-flop 8 3-state output, drives ±6 mA at 5 V and goes high-impedance when OE is high."+ },+ {+ "number": "20",+ "name": "VCC",+ "type": "power_in",+ "description": "Supply voltage, 4.5 V to 5.5 V recommended, with a 0.1-µF bypass capacitor placed close to the pin."+ }+ ],+ "provenance": {+ "extractor": "extract_pins 0.3",+ "factory_chain": {+ "factory": "2.0.0",+ "extractor": "extract_pins 0.3",+ "primary_model": "claude-sonnet-5-5",+ "primary_mode": "text+vision",+ "consensus_model": "claude-opus-5-5",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [+ "vision extraction: provenance cannot be text-verified; needs consensus"+ ],+ "pages_sent": 30,+ "cost_usd": 0.4901,+ "at": "2026-10-08T00:58:08"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/sn74hct374",+ "pages": 30,+ "sha256": "d6967f49e2d44280",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 20,+ "described": 20,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ },+ "models_3d": [+ {+ "file": "sn74hct374dbr.step",+ "role": "plain",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 7.8,+ 7.2,+ 2.1+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "c9a01a276d0b4d9561efd58f2fcee56f52c1b6ab464ea7a0380cab4e87a924e6",+ "checked": "2026-10-08",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ },+ {+ "file": "sn74hct374dbr-etched.step",+ "role": "eda",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 7.8,+ 7.2,+ 2.1+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "910da7280db57b895f7ca01e690c0abc6308e48848ad2b62e3a85381a31032da",+ "checked": "2026-10-08",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ }+ ]+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}