74LVXC3245MTCX

@@ -0,0 +1,67 @@+# 74LVXC3245MTCX++**onsemi** · Buffer/Driver/Transceiver · TSSOP-24++74LVXC3245MTCX from onsemi, in a TSSOP-24. 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 | VCCA | power_in | A-side supply. Dedicated 3 V rail (2.7 V to 3.6 V recommended) that powers the A-port I/O buffers. |+| 2 | T/R | input | Transmit/Receive direction control. HIGH transmits data from bus A to bus B; LOW receives data from bus B to bus A. TTL-compatible input. |+| 3 | A0 | bidirectional | Side A bit 0. Bidirectional 3 V I/O; acts as input when T/R=LOW and OE=LOW, or as 3-STATE output when T/R=HIGH and OE=LOW. |+| 4 | A1 | bidirectional | Side A bit 1. Bidirectional 3 V I/O port pin. |+| 5 | A2 | bidirectional | Side A bit 2. Bidirectional 3 V I/O port pin. |+| 6 | A3 | bidirectional | Side A bit 3. Bidirectional 3 V I/O port pin. |+| 7 | A4 | bidirectional | Side A bit 4. Bidirectional 3 V I/O port pin. |+| 8 | A5 | bidirectional | Side A bit 5. Bidirectional 3 V I/O port pin. |+| 9 | A6 | bidirectional | Side A bit 6. Bidirectional 3 V I/O port pin. |+| 10 | A7 | bidirectional | Side A bit 7. Bidirectional 3 V I/O port pin. |+| 11 | GND | power_in | Ground reference (0 V). Tie all GND pins to the board ground plane. |+| 12 | GND | power_in | Ground reference (0 V). Tie all GND pins to the board ground plane. |+| 13 | GND | power_in | Ground reference (0 V). Tie all GND pins to the board ground plane. |+| 14 | B7 | bidirectional | Side B bit 7. Bidirectional VCCB-level I/O (3 V to 5 V) that tracks VCCB. |+| 15 | B6 | bidirectional | Side B bit 6. Bidirectional VCCB-level I/O (3 V to 5 V). |+| 16 | B5 | bidirectional | Side B bit 5. Bidirectional VCCB-level I/O (3 V to 5 V). |+| 17 | B4 | bidirectional | Side B bit 4. Bidirectional VCCB-level I/O (3 V to 5 V). |+| 18 | B3 | bidirectional | Side B bit 3. Bidirectional VCCB-level I/O (3 V to 5 V). |+| 19 | B2 | bidirectional | Side B bit 2. Bidirectional VCCB-level I/O (3 V to 5 V). |+| 20 | B1 | bidirectional | Side B bit 1. Bidirectional VCCB-level I/O (3 V to 5 V). |+| 21 | B0 | bidirectional | Side B bit 0. Bidirectional VCCB-level I/O (3 V to 5 V). |+| 22 | OE | input | Active-LOW output enable. When LOW, the transceiver is enabled in the direction set by T/R. When HIGH, both A and B ports go to 3-STATE (HIGH-Z) and VCCB is allowed to float - required for PCMCIA card insertion/removal. |+| 23 | NC | unconnected | No internal connection. Leave unconnected or tie as convenient. |+| 24 | VCCB | power_in | B-side supply. Accepts 3 V to 5.5 V (recommended 3.0 V to 5.5 V); sets the B-port logic level. May float when OE is HIGH (PCMCIA hot-swap support). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | onsemi |+| Package | TSSOP-24 |+| Category | Logic |+| Pins | 24 |++## Ordering variants++Same part, different packaging or reel option.++- `74LVXC3245MTCX`+- `74LVXC3245MTCXWM`+- `74LVXC3245MTCXQSC`++## CAD (KiCad official)++- Symbol: `74LVXC3245MTCX`+- Footprint: `Package_SO:TSSOP-24_4.4x7.8mm_P0.65mm`+- 3D model: TSSOP-24 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [onsemi datasheet](https://www.onsemi.com/pdf/datasheet/74lvxc3245mtcx-d.pdf) (11 pp, sha256 `a8f33038b93e3f2a`, 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/74lvxc3245mtcx-datasheet.pdf)

@@ -0,0 +1,34 @@+{+  "slug": "74lvxc3245mtcx",+  "version": "0.1.0",+  "type": "component",+  "description": "onsemi Buffer/Driver/Transceiver, TSSOP-24. Datasheet-verified pinout, KiCad symbol/footprint/3D.",+  "tags": [+    "component",+    "logic",+    "74lvxc3245mtcx"+  ],+  "dependencies": {},+  "hero": {+    "type": "image",+    "path": "docs/hero.png"+  },+  "files": [+    "page.json",+    "README.md",+    "74lvxc3245mtcx.kicad_sym",+    "74lvxc3245mtcx.kicad_mod",+    "74lvxc3245mtcx.glb",+    "74lvxc3245mtcx.step",+    "74lvxc3245mtcx.lbr",+    "docs/hero.png",+    "docs/74lvxc3245mtcx-datasheet.pdf",+    "viewers/symbol.html",+    "viewers/footprint.html"+  ],+  "visibility": "public",+  "author": {+    "name": "Ray",+    "email": "[email protected]"+  }+}\ No newline at end of file