component
SN75477P
Public Made by Adomby adom
Texas Instruments Buffers, Drivers, Receivers, Transceivers, PDIP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+44@@ -0,0 +1,44 @@+# SN75477P++**Texas Instruments** · Buffers, Drivers, Receivers, Transceivers · PDIP-8++SN75477P from Texas Instruments, in a PDIP-8. 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 | S | input | Strobe input shared by both NAND drivers; the SN75477 output is Y = NOT(A AND S) per the function table, with VIH minimum 2 V and VIL maximum 0.8 V. |+| 2 | 1A | input | Logic input of driver 1 with diode-clamped, TTL- or MOS-compatible pnp input; input current IIL is -80 to -110 µA at VI = 0.8 V, and the input clamp voltage is -1.5 V maximum at II = -12 mA. |+| 3 | 1Y | output | High-voltage open-drain-style output of driver 1, characterized for use to 300 mA with output breakdown voltage of 70 V minimum (100 V typical) and continuous output current rated to 400 mA absolute maximum. |+| 4 | GND | power_in | Network ground reference; all datasheet voltage values are referenced to this pin. |+| 5 | CLAMP | passive | Common output clamp diode connection providing inductive transient suppression for both outputs, rated 300 mA and 70 V, with clamp current IOK limited to 400 mA absolute maximum. |+| 6 | 2Y | output | High-voltage output of driver 2, characterized for use to 300 mA with output breakdown voltage of 70 V minimum (100 V typical) and continuous output current rated to 400 mA absolute maximum. |+| 7 | 2A | input | Logic input of driver 2 with diode-clamped, TTL- or MOS-compatible pnp input; input current IIL is -80 to -110 µA at VI = 0.8 V, and the input clamp voltage is -1.5 V maximum at II = -12 mA. |+| 8 | VCC | power_in | Supply voltage with recommended range 4.5 V to 5.5 V (5 V nominal) and absolute maximum rating of 7 V with respect to network GND. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | PDIP-8 |+| Category | Logic |+| Pins | 8 |++## CAD (KiCad official)++- Symbol: `SN75477P`+- Footprint: `Package_DIP:DIP-8_W7.62mm`+- 3D model: PDIP-8 (KiCad packages3D, STEP)+- 3D model files: `sn75477p-etched.step` / `sn75477p-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sn75477p.step` / `sn75477p.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/sn75477) (16 pp, sha256 `f05d863804c7d840`, retrieved 2026-10-07, tier: lcsc)+- **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/sn75477p-datasheet.pdf)
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Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "logic",+ "sn75477p",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "sn75477p.kicad_sym",+ "sn75477p.kicad_mod",+ "sn75477p.glb",+ "sn75477p.step",+ "sn75477p.lbr",+ "docs/hero.png",+ "docs/sn75477p-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html",+ "sn75477p-hero.glb",+ "sn75477p-hero.overlay.json"+ ],+ "component": {+ "mpn": "SN75477P",+ "manufacturer": "Texas Instruments",+ "package": "PDIP-8",+ "pin_count": 8,+ "category": "Logic",+ "subcategory": "Buffers, Drivers, Receivers, Transceivers",+ "datasheet": "https://www.ti.com/cn/lit/gpn/sn75477",+ "parts": {+ "symbol": "sn75477p.kicad_sym",+ "footprint": "sn75477p.kicad_mod",+ "model_3d": "sn75477p-hero.glb",+ "model_3d_plain": "sn75477p.glb",+ "model_3d_step": "sn75477p-etched.step",+ "model_3d_step_plain": "sn75477p.step",+ "lbr": "sn75477p.lbr"+ },+ "distributor_links": {+ "lcsc": "C2859816",+ "digikey": "2156-SN75477P-ND",+ "mouser": "595-SN75477P"+ },+ "distributor_check": {+ "checked_at": "2026-10-07T22:34:52Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "2156-SN75477P-ND",+ "status": "found"+ },+ "mouser": {+ "pn": "595-SN75477P",+ "status": "found"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "S",+ "type": "input",+ "description": "Strobe input shared by both NAND drivers; the SN75477 output is Y = NOT(A AND S) per the function table, with VIH minimum 2 V and VIL maximum 0.8 V."+ },+ {+ "number": "2",+ "name": "1A",+ "type": "input",+ "description": "Logic input of driver 1 with diode-clamped, TTL- or MOS-compatible pnp input; input current IIL is -80 to -110 µA at VI = 0.8 V, and the input clamp voltage is -1.5 V maximum at II = -12 mA."+ },+ {+ "number": "3",+ "name": "1Y",+ "type": "output",+ "description": "High-voltage open-drain-style output of driver 1, characterized for use to 300 mA with output breakdown voltage of 70 V minimum (100 V typical) and continuous output current rated to 400 mA absolute maximum."+ },+ {+ "number": "4",+ "name": "GND",+ "type": "power_in",+ "description": "Network ground reference; all datasheet voltage values are referenced to this pin."+ },+ {+ "number": "5",+ "name": "CLAMP",+ "type": "passive",+ "description": "Common output clamp diode connection providing inductive transient suppression for both outputs, rated 300 mA and 70 V, with clamp current IOK limited to 400 mA absolute maximum."+ },+ {+ "number": "6",+ "name": "2Y",+ "type": "output",+ "description": "High-voltage output of driver 2, characterized for use to 300 mA with output breakdown voltage of 70 V minimum (100 V typical) and continuous output current rated to 400 mA absolute maximum."+ },+ {+ "number": "7",+ "name": "2A",+ "type": "input",+ "description": "Logic input of driver 2 with diode-clamped, TTL- or MOS-compatible pnp input; input current IIL is -80 to -110 µA at VI = 0.8 V, and the input clamp voltage is -1.5 V maximum at II = -12 mA."+ },+ {+ "number": "8",+ "name": "VCC",+ "type": "power_in",+ "description": "Supply voltage with recommended range 4.5 V to 5.5 V (5 V nominal) and absolute maximum rating of 7 V with respect to network GND."+ }+ ],+ "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 page 1 pin diagram text is garbled, so the number-to-name mapping was inferred from text order (; The datasheet names the pin 'S' and gives its logic function only in the function table; it does not"+ ],+ "pages_sent": 16,+ "cost_usd": 0.0675,+ "at": "2026-10-07T22:34:37"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/sn75477",+ "pages": 16,+ "sha256": "f05d863804c7d840",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 8,+ "described": 8,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ },+ "models_3d": [+ {+ "file": "sn75477p.step",+ "role": "plain",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "body on z = 0, through-hole leads below",+ "extents_mm": [+ 7.874,+ 9.27,+ 6.98+ ],+ "zmin_mm": -3.3,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "4a377a56a8d9e9c0b86c095ef9ecc1869ac19e7f5069a3247b294250bf4f235d",+ "checked": "2026-10-07",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ },+ {+ "file": "sn75477p-etched.step",+ "role": "eda",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "body on z = 0, through-hole leads below",+ "extents_mm": [+ 7.874,+ 9.27,+ 6.98+ ],+ "zmin_mm": -3.3,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "c36bc169b8e7b819828c10cdd7c0156621468c1cb521fa324658ab9b20581461",+ "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]"+ }+}