C8051F340-GQR

@@ -0,0 +1,94 @@+# C8051F340-GQR++**SKYWORKS SILICON LABS** · Microcontrollers (MCU/MPU/SOC) · TQFP-48(7x7)++C8051F340-GQR from SKYWORKS SILICON LABS, in a TQFP-48(7x7). 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 | P0.5 | bidirectional | Port 0.5 - digital I/O or analog input. 5 V tolerant, configurable through the crossbar and priority decoder. |+| 2 | P0.4 | bidirectional | Port 0.4 - digital I/O or analog input. 5 V tolerant. |+| 3 | P0.3 | bidirectional | Port 0.3 - digital I/O or analog input. 5 V tolerant. |+| 4 | P0.2 | bidirectional | Port 0.2 - digital I/O or analog input. 5 V tolerant. |+| 5 | P0.1 | bidirectional | Port 0.1 - digital I/O or analog input. 5 V tolerant. |+| 6 | P0.0 | bidirectional | Port 0.0 - digital I/O or analog input. 5 V tolerant. |+| 7 | GND | power_in | Ground return for all supplies and I/Os. |+| 8 | D+ | bidirectional | USB 2.0 full-speed/low-speed D+ line. Integrated transceiver requires no external series/termination resistors. |+| 9 | D- | bidirectional | USB 2.0 full-speed/low-speed D- line. Integrated transceiver requires no external series/termination resistors. |+| 10 | VDD | power_in | 2.7-3.6 V power supply input, OR 3.3 V output of the on-chip voltage regulator when powered via REGIN. Bypass with 1 µF + 0.1 µF to GND. |+| 11 | REGIN | power_in | 5 V input to the on-chip voltage regulator that generates VDD. Leave unused or tied to VDD when operating directly from a 2.7-3.6 V rail on VDD. |+| 12 | VBUS | input | USB VBUS sense input. Connect to the USB cable VBUS (nominal 5 V) so firmware/hardware can detect host attach. |+| 13 | /RST/C2CK | bidirectional | Device reset (open-drain output of internal POR/VDD monitor; external source may reset by pulling low ≥15 µs) and C2 debug interface clock. Requires an external pull-up for reset use. |+| 14 | C2D | bidirectional | Bi-directional data signal for the C2 debug/programming interface. |+| 15 | P4.7 | bidirectional | Port 4.7 - digital I/O. 5 V tolerant, high-sink capable, assignable through the crossbar. |+| 16 | P4.6 | bidirectional | Port 4.6 - digital I/O. 5 V tolerant. |+| 17 | P4.5 | bidirectional | Port 4.5 - digital I/O. 5 V tolerant. |+| 18 | P4.4 | bidirectional | Port 4.4 - digital I/O. 5 V tolerant. |+| 19 | P4.3 | bidirectional | Port 4.3 - digital I/O. 5 V tolerant. |+| 20 | P4.2 | bidirectional | Port 4.2 - digital I/O. 5 V tolerant. |+| 21 | P4.1 | bidirectional | Port 4.1 - digital I/O. 5 V tolerant. |+| 22 | P4.0 | bidirectional | Port 4.0 - digital I/O. 5 V tolerant. |+| 23 | P3.7 | bidirectional | Port 3.7 - digital I/O or analog input. 5 V tolerant. |+| 24 | P3.6 | bidirectional | Port 3.6 - digital I/O or analog input. 5 V tolerant. |+| 25 | P3.5 | bidirectional | Port 3.5 - digital I/O or analog input. 5 V tolerant. |+| 26 | P3.4 | bidirectional | Port 3.4 - digital I/O or analog input. 5 V tolerant. |+| 27 | P3.3 | bidirectional | Port 3.3 - digital I/O or analog input. 5 V tolerant. |+| 28 | P3.2 | bidirectional | Port 3.2 - digital I/O or analog input. 5 V tolerant. |+| 29 | P3.1 | bidirectional | Port 3.1 - digital I/O or analog input. 5 V tolerant. |+| 30 | P3.0 | bidirectional | Port 3.0 - digital I/O or analog input. 5 V tolerant. |+| 31 | P2.7 | bidirectional | Port 2.7 - digital I/O or analog input. 5 V tolerant. |+| 32 | P2.6 | bidirectional | Port 2.6 - digital I/O or analog input. 5 V tolerant. |+| 33 | P2.5 | bidirectional | Port 2.5 - digital I/O or analog input. 5 V tolerant. |+| 34 | P2.4 | bidirectional | Port 2.4 - digital I/O or analog input. 5 V tolerant. |+| 35 | P2.3 | bidirectional | Port 2.3 - digital I/O or analog input. 5 V tolerant. |+| 36 | P2.2 | bidirectional | Port 2.2 - digital I/O or analog input. 5 V tolerant. |+| 37 | P2.1 | bidirectional | Port 2.1 - digital I/O or analog input. 5 V tolerant. |+| 38 | P2.0 | bidirectional | Port 2.0 - digital I/O or analog input. 5 V tolerant. |+| 39 | P1.7 | bidirectional | Port 1.7 - digital I/O or analog input. 5 V tolerant. |+| 40 | P1.6 | bidirectional | Port 1.6 - digital I/O or analog input. 5 V tolerant. |+| 41 | P1.5 | bidirectional | Port 1.5 - digital I/O or analog input. 5 V tolerant. |+| 42 | P1.4 | bidirectional | Port 1.4 - digital I/O or analog input. 5 V tolerant. |+| 43 | P1.3 | bidirectional | Port 1.3 - digital I/O or analog input. 5 V tolerant. |+| 44 | P1.2 | bidirectional | Port 1.2 - digital I/O or analog input. 5 V tolerant. |+| 45 | P1.1 | bidirectional | Port 1.1 - digital I/O or analog input. 5 V tolerant. |+| 46 | P1.0 | bidirectional | Port 1.0 - digital I/O or analog input. 5 V tolerant. |+| 47 | P0.7 | bidirectional | Port 0.7 - digital I/O or analog input. 5 V tolerant. |+| 48 | P0.6 | bidirectional | Port 0.6 - digital I/O or analog input. 5 V tolerant. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | SKYWORKS SILICON LABS |+| Package | TQFP-48(7x7) |+| Category | MCU |+| Pins | 48 |++## Ordering variants++- `C8051F340-GQR`+- `C8051F340-GQRC8051F341-GQ`+- `C8051F340-GQRC8051F344-GQ`+- `C8051F340-GQRC8051F345-GQ`+- `C8051F340-GQRC8051F342-GQ`+- `C8051F340-GQRC8051F343-GQ`+- `C8051F340-GQRC8051F346-GQ`+- `C8051F340-GQRC8051F347-GQ`++## CAD (KiCad official)++- Symbol: `C8051F340-GQR`+- Footprint: `Package_QFP:TQFP-48_7x7mm_P0.5mm`+- 3D model: TQFP-48(7x7) (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [SKYWORKS SILICON LABS datasheet](docs/c8051f340-gqr-datasheet.pdf) (288 pp, sha256 `1f321894fc48c92f`, retrieved 2026-08-17, tier: lcsc)+- **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/c8051f340-gqr-datasheet.pdf)