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SN74HCS137QDRQ1
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Texas Instruments Signal Switches, Multiplexers, Decoders, SOIC-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+53@@ -0,0 +1,53 @@+# SN74HCS137QDRQ1++**Texas Instruments** · Signal Switches, Multiplexers, Decoders · SOIC-16++SN74HCS137QDRQ1 from Texas Instruments, in a SOIC-16. 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 | A0 | input | Address select 0 input (Schmitt-trigger); with LE low it selects one of the eight outputs, and with LE high its value is latched and ignored. |+| 2 | A1 | input | Address select 1 input (Schmitt-trigger); with LE low it selects one of the eight outputs, and with LE high its value is latched and ignored. |+| 3 | A2 | input | Address select 2 input (Schmitt-trigger); with LE low it selects one of the eight outputs, and with LE high its value is latched and ignored. |+| 4 | LE | input | Active-low latch enable; when LE is low the device acts as a normal one-of-eight decoder, and when LE is high the address latches hold their previous states regardless of address changes. |+| 5 | G1 | input | Active-low strobe input 1; when any strobe is active all outputs are forced high, and it can serve as the data input for demultiplexing. |+| 6 | G0 | input | Strobe input 0; when this strobe is active all outputs are forced high, and it can serve as the data input for demultiplexing. |+| 7 | Y7 | output | Decoder output 7, normally high and low only when selected; balanced CMOS push-pull output that may be left disconnected if unused. |+| 8 | GND | power_in | Ground reference pin for the device. |+| 9 | Y6 | output | Decoder output 6, normally high and low only when selected; balanced CMOS push-pull output that may be left disconnected if unused. |+| 10 | Y5 | output | Decoder output 5, normally high and low only when selected; balanced CMOS push-pull output that may be left disconnected if unused. |+| 11 | Y4 | output | Decoder output 4, normally high and low only when selected; balanced CMOS push-pull output that may be left disconnected if unused. |+| 12 | Y3 | output | Decoder output 3, normally high and low only when selected; balanced CMOS push-pull output that may be left disconnected if unused. |+| 13 | Y2 | output | Decoder output 2, normally high and low only when selected; balanced CMOS push-pull output that may be left disconnected if unused. |+| 14 | Y1 | output | Decoder output 1, normally high and low only when selected; balanced CMOS push-pull output that may be left disconnected if unused. |+| 15 | Y0 | output | Decoder output 0, normally high and low only when selected; balanced CMOS push-pull output that may be left disconnected if unused. |+| 16 | VCC | power_in | Positive supply; the recommended supply voltage range is 2 V to 6 V. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SOIC-16 |+| Category | Logic |+| Pins | 16 |++## CAD (KiCad official)++- Symbol: `SN74HCS137QDRQ1`+- Footprint: `Package_SO:SOIC-16_3.9x9.9mm_P1.27mm`+- 3D model: SOIC-16 (KiCad packages3D, STEP)+- 3D model files: `sn74hcs137qdrq1-etched.step` / `sn74hcs137qdrq1-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sn74hcs137qdrq1.step` / `sn74hcs137qdrq1.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/sn74hcs137-q1) (26 pp, sha256 `1f54f5f2f2c675e1`, retrieved 2026-10-07, 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-haiku-5-5` (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/sn74hcs137qdrq1-datasheet.pdf)
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Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "logic",+ "sn74hcs137qdrq1",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "sn74hcs137qdrq1.kicad_sym",+ "sn74hcs137qdrq1.kicad_mod",+ "sn74hcs137qdrq1.glb",+ "sn74hcs137qdrq1.step",+ "sn74hcs137qdrq1.lbr",+ "docs/hero.png",+ "docs/sn74hcs137qdrq1-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html",+ "sn74hcs137qdrq1-hero.glb",+ "sn74hcs137qdrq1-hero.overlay.json"+ ],+ "component": {+ "mpn": "SN74HCS137QDRQ1",+ "manufacturer": "Texas Instruments",+ "package": "SOIC-16",+ "pin_count": 16,+ "category": "Logic",+ "subcategory": "Signal Switches, Multiplexers, Decoders",+ "datasheet": "https://www.ti.com/cn/lit/gpn/sn74hcs137-q1",+ "parts": {+ "symbol": "sn74hcs137qdrq1.kicad_sym",+ "footprint": "sn74hcs137qdrq1.kicad_mod",+ "model_3d": "sn74hcs137qdrq1-hero.glb",+ "model_3d_plain": "sn74hcs137qdrq1.glb",+ "model_3d_step": "sn74hcs137qdrq1-etched.step",+ "model_3d_step_plain": "sn74hcs137qdrq1.step",+ "lbr": "sn74hcs137qdrq1.lbr"+ },+ "distributor_links": {+ "lcsc": "C2870094",+ "digikey": "296-SN74HCS137QDRQ1TR-ND",+ "mouser": "595-SN74HCS137QDRQ1"+ },+ "distributor_check": {+ "checked_at": "2026-10-07T22:44:53Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "296-SN74HCS137QDRQ1TR-ND",+ "status": "found",+ "lifecycle": "Active"+ },+ "mouser": {+ "pn": "595-SN74HCS137QDRQ1",+ "status": "found"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "A0",+ "type": "input",+ "description": "Address select 0 input (Schmitt-trigger); with LE low it selects one of the eight outputs, and with LE high its value is latched and ignored."+ },+ {+ "number": "2",+ "name": "A1",+ "type": "input",+ "description": "Address select 1 input (Schmitt-trigger); with LE low it selects one of the eight outputs, and with LE high its value is latched and ignored."+ },+ {+ "number": "3",+ "name": "A2",+ "type": "input",+ "description": "Address select 2 input (Schmitt-trigger); with LE low it selects one of the eight outputs, and with LE high its value is latched and ignored."+ },+ {+ "number": "4",+ "name": "LE",+ "type": "input",+ "description": "Active-low latch enable; when LE is low the device acts as a normal one-of-eight decoder, and when LE is high the address latches hold their previous states regardless of address changes."+ },+ {+ "number": "5",+ "name": "G1",+ "type": "input",+ "description": "Active-low strobe input 1; when any strobe is active all outputs are forced high, and it can serve as the data input for demultiplexing."+ },+ {+ "number": "6",+ "name": "G0",+ "type": "input",+ "description": "Strobe input 0; when this strobe is active all outputs are forced high, and it can serve as the data input for demultiplexing."+ },+ {+ "number": "7",+ "name": "Y7",+ "type": "output",+ "description": "Decoder output 7, normally high and low only when selected; balanced CMOS push-pull output that may be left disconnected if unused."+ },+ {+ "number": "8",+ "name": "GND",+ "type": "power_in",+ "description": "Ground reference pin for the device."+ },+ {+ "number": "9",+ "name": "Y6",+ "type": "output",+ "description": "Decoder output 6, normally high and low only when selected; balanced CMOS push-pull output that may be left disconnected if unused."+ },+ {+ "number": "10",+ "name": "Y5",+ "type": "output",+ "description": "Decoder output 5, normally high and low only when selected; balanced CMOS push-pull output that may be left disconnected if unused."+ },+ {+ "number": "11",+ "name": "Y4",+ "type": "output",+ "description": "Decoder output 4, normally high and low only when selected; balanced CMOS push-pull output that may be left disconnected if unused."+ },+ {+ "number": "12",+ "name": "Y3",+ "type": "output",+ "description": "Decoder output 3, normally high and low only when selected; balanced CMOS push-pull output that may be left disconnected if unused."+ },+ {+ "number": "13",+ "name": "Y2",+ "type": "output",+ "description": "Decoder output 2, normally high and low only when selected; balanced CMOS push-pull output that may be left disconnected if unused."+ },+ {+ "number": "14",+ "name": "Y1",+ "type": "output",+ "description": "Decoder output 1, normally high and low only when selected; balanced CMOS push-pull output that may be left disconnected if unused."+ },+ {+ "number": "15",+ "name": "Y0",+ "type": "output",+ "description": "Decoder output 0, normally high and low only when selected; balanced CMOS push-pull output that may be left disconnected if unused."+ },+ {+ "number": "16",+ "name": "VCC",+ "type": "power_in",+ "description": "Positive supply; the recommended supply voltage range is 2 V to 6 V."+ }+ ],+ "provenance": {+ "extractor": "extract_pins 0.3",+ "factory_chain": {+ "factory": "2.0.0",+ "extractor": "extract_pins 0.3",+ "primary_model": "claude-haiku-5-5",+ "primary_mode": "text",+ "consensus_model": "claude-sonnet-5-5",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [+ "extractor flagged: The pin table on page 3 is shared by the SOIC (D) and TSSOP (PW) packages. The pin assignment is the; The datasheet is a TI Chinese-translation document, but the pin names and functions are the English "+ ],+ "pages_sent": 26,+ "cost_usd": 0.0997,+ "at": "2026-10-07T22:44:35"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/sn74hcs137-q1",+ "pages": 26,+ "sha256": "1f54f5f2f2c675e1",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 16,+ "described": 16,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ },+ "models_3d": [+ {+ "file": "sn74hcs137qdrq1.step",+ "role": "plain",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 6,+ 9.9,+ 1.75+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "d5eeddb4c0b304dc61950919b126fc61d7586abd5f16ab71a2a79759ec6498bf",+ "checked": "2026-10-07",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ },+ {+ "file": "sn74hcs137qdrq1-etched.step",+ "role": "eda",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 6,+ 9.9,+ 1.75+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "34f515bd6e89d37dd1ed446dc23db7e424aa3c884d8151b550219a7544d01c5d",+ "checked": "2026-10-07",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ }+ ]+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}