SN74LVC245APWR

@@ -0,0 +1,68 @@+# SN74LVC245APWR++**Texas Instruments** · Buffer/Driver/Transceiver · TSSOP-20++SN74LVC245APWR from Texas Instruments, in a TSSOP-20. 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 | DIR | input | Direction control. When high, signal propagates from A port to B port. When low, signal propagates from B port to A port. CMOS logic input referenced to VCC (1.65 V to 3.6 V); accepts up to 5.5 V. |+| 2 | A1 | tri_state | Transceiver I/O pin, channel 1 A-side. Bidirectional 3-state I/O; direction set by DIR, enabled by OE (active-low). IOH up to -24 mA / IOL up to 24 mA at VCC = 3 V. |+| 3 | A2 | tri_state | Transceiver I/O pin, channel 2 A-side. Bidirectional 3-state I/O; direction set by DIR, enabled by OE (active-low). |+| 4 | A3 | tri_state | Transceiver I/O pin, channel 3 A-side. Bidirectional 3-state I/O; direction set by DIR, enabled by OE (active-low). |+| 5 | A4 | tri_state | Transceiver I/O pin, channel 4 A-side. Bidirectional 3-state I/O; direction set by DIR, enabled by OE (active-low). |+| 6 | A5 | tri_state | Transceiver I/O pin, channel 5 A-side. Bidirectional 3-state I/O; direction set by DIR, enabled by OE (active-low). |+| 7 | A6 | tri_state | Transceiver I/O pin, channel 6 A-side. Bidirectional 3-state I/O; direction set by DIR, enabled by OE (active-low). |+| 8 | A7 | tri_state | Transceiver I/O pin, channel 7 A-side. Bidirectional 3-state I/O; direction set by DIR, enabled by OE (active-low). |+| 9 | A8 | tri_state | Transceiver I/O pin, channel 8 A-side. Bidirectional 3-state I/O; direction set by DIR, enabled by OE (active-low). |+| 10 | GND | power_in | Ground reference (0 V). Connect to the system ground plane. |+| 11 | B8 | tri_state | Transceiver I/O pin, channel 8 B-side. Bidirectional 3-state I/O; direction set by DIR, enabled by OE (active-low). |+| 12 | B7 | tri_state | Transceiver I/O pin, channel 7 B-side. Bidirectional 3-state I/O; direction set by DIR, enabled by OE (active-low). |+| 13 | B6 | tri_state | Transceiver I/O pin, channel 6 B-side. Bidirectional 3-state I/O; direction set by DIR, enabled by OE (active-low). |+| 14 | B5 | tri_state | Transceiver I/O pin, channel 5 B-side. Bidirectional 3-state I/O; direction set by DIR, enabled by OE (active-low). |+| 15 | B4 | tri_state | Transceiver I/O pin, channel 4 B-side. Bidirectional 3-state I/O; direction set by DIR, enabled by OE (active-low). |+| 16 | B3 | tri_state | Transceiver I/O pin, channel 3 B-side. Bidirectional 3-state I/O; direction set by DIR, enabled by OE (active-low). |+| 17 | B2 | tri_state | Transceiver I/O pin, channel 2 B-side. Bidirectional 3-state I/O; direction set by DIR, enabled by OE (active-low). |+| 18 | B1 | tri_state | Transceiver I/O pin, channel 1 B-side. Bidirectional 3-state I/O; direction set by DIR, enabled by OE (active-low). |+| 19 | OE | input | Output enable, active-low. When low, all outputs are enabled per DIR. When high, all A and B outputs are placed in the high-impedance (3-state) state. Accepts up to 5.5 V. |+| 20 | VCC | power_in | Supply voltage. Operating range 1.65 V to 3.6 V; absolute maximum 6.5 V. Decouple with ceramic bypass capacitor(s) to GND. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | TSSOP-20 |+| Category | Logic |+| Pins | 20 |++## Ordering variants++- `SN74LVC245APWRPW`+- `SN74LVC245APWRPWR`+- `SN74LVC245APWRDB`+- `SN74LVC245APWRDGV`+- `SN74LVC245APWRDW`+- `SN74LVC245APWRN`+- `SN74LVC245APWRNS`+- `SN74LVC245APWRRGY`+- `SN74LVC245APWRGQN`+- `SN74LVC245APWRZQN`++## CAD (KiCad official)++- Symbol: `SN74LVC245APWR`+- Footprint: `Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm`+- 3D model: TSSOP-20 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/lit/ds/symlink/sn74lvc245a.pdf) (35 pp, sha256 `f8c28b30ab2bf1a0`, retrieved 2026-08-17, tier: manufacturer)+- **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/sn74lvc245apwr-datasheet.pdf)

@@ -0,0 +1,34 @@+{+  "slug": "sn74lvc245apwr",+  "version": "0.1.0",+  "type": "component",+  "description": "Texas Instruments Buffer/Driver/Transceiver, TSSOP-20. Datasheet-verified pinout, KiCad symbol/footprint/3D.",+  "tags": [+    "component",+    "logic",+    "sn74lvc245apwr"+  ],+  "dependencies": {},+  "hero": {+    "type": "image",+    "path": "docs/hero.png"+  },+  "files": [+    "page.json",+    "README.md",+    "sn74lvc245apwr.kicad_sym",+    "sn74lvc245apwr.kicad_mod",+    "sn74lvc245apwr.glb",+    "sn74lvc245apwr.step",+    "sn74lvc245apwr.lbr",+    "docs/hero.png",+    "docs/sn74lvc245apwr-datasheet.pdf",+    "viewers/symbol.html",+    "viewers/footprint.html"+  ],+  "visibility": "public",+  "author": {+    "name": "Ray",+    "email": "[email protected]"+  }+}\ No newline at end of file