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CP2108-B03-GMR
Public Made by Adomby adom
SKYWORKS SILICON LABS USB Converters, QFN-64-EP(9x9). Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+105@@ -0,0 +1,105 @@+# CP2108-B03-GMR++**SKYWORKS SILICON LABS** · USB Converters · QFN-64-EP(9x9)++CP2108-B03-GMR from SKYWORKS SILICON LABS, in a QFN-64-EP(9x9). 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 | RX3 | input | UART 3 Receive (RX), high-drive input (VIOHD domain, 2.7-6.0 V). |+| 2 | VSSHD | power_in | High-drive device ground for UART 3 pins 1-6. Connect to device ground. |+| 3 | VIOHD | power_in | High-drive I/O supply voltage input for UART 3 pins 1-6, 2.7 V to 6.0 V. |+| 4 | TX3 | output | UART 3 Transmit (TX), high-drive output (VIOHD domain). |+| 5 | CTS3 | input | UART 3 Clear to Send (CTS), high-drive input. |+| 6 | RTS3 | output | UART 3 Ready to Send (RTS), high-drive output. |+| 7 | RI3 | input | UART 3 Ring Indicator (RI). Indicates modem detected a ringing signal. |+| 8 | DCD3 | input | UART 3 Data Carrier Detect (DCD). |+| 9 | DSR3 | input | UART 3 Data Set Ready (DSR). |+| 10 | DTR3 | output | UART 3 Data Terminal Ready (DTR). |+| 11 | RI2 | input | UART 2 Ring Indicator (RI). |+| 12 | DCD2 | input | UART 2 Data Carrier Detect (DCD). |+| 13 | CTS2 | input | UART 2 Clear to Send (CTS). |+| 14 | RTS2 | output | UART 2 Ready to Send (RTS). |+| 15 | RX2 | input | UART 2 Receive (RX). |+| 16 | TX2 | output | UART 2 Transmit (TX). |+| 17 | DSR2 | input | UART 2 Data Set Ready (DSR). |+| 18 | DTR2 | output | UART 2 Data Terminal Ready (DTR). |+| 19 | /SUSPEND | output | Suspend indicator, active low. Asserted when USB is in suspend state. |+| 20 | SUSPEND | output | Suspend indicator, active high. Asserted when USB is in suspend state. |+| 21 | GPIO.15 | bidirectional | General Purpose I/O 15. Alternate function: Clock Output 3. |+| 22 | GPIO.14 | bidirectional | General Purpose I/O 14. Alternate function: UART 3 RS-485 transceiver control. |+| 23 | GPIO.13 | bidirectional | General Purpose I/O 13. Alternate function: UART 3 RX toggle indicator. |+| 24 | VIO | power_in | Non-high-drive I/O supply voltage input, 3.0 V to VDD. |+| 25 | VSS | power_in | Device ground. |+| 26 | GPIO.12 | bidirectional | General Purpose I/O 12. Alternate function: UART 3 TX toggle indicator. |+| 27 | GPIO.11 | bidirectional | General Purpose I/O 11. Alternate function: Clock Output 2. |+| 28 | GPIO.10 | bidirectional | General Purpose I/O 10. Alternate function: UART 2 RS-485 transceiver control. |+| 29 | GPIO.9 | bidirectional | General Purpose I/O 9. Alternate function: UART 2 RX toggle indicator. |+| 30 | GPIO.8 | bidirectional | General Purpose I/O 8. Alternate function: UART 2 TX toggle indicator. |+| 31 | GPIO.7 | bidirectional | General Purpose I/O 7. Alternate function: Clock Output 1. |+| 32 | GPIO.6 | bidirectional | General Purpose I/O 6. Alternate function: UART 1 RS-485 transceiver control. |+| 33 | GPIO.5 | bidirectional | General Purpose I/O 5. Alternate function: UART 1 RX toggle indicator. |+| 34 | GPIO.4 | bidirectional | General Purpose I/O 4. Alternate function: UART 1 TX toggle indicator. |+| 35 | NC | unconnected | No Connect. Leave floating or tie to ground. |+| 36 | NC | unconnected | No Connect. Leave floating or tie to ground. |+| 37 | GPIO.3 | bidirectional | General Purpose I/O 3. Alternate function: Clock Output 0. |+| 38 | GPIO.2 | bidirectional | General Purpose I/O 2. Alternate function: UART 0 RS-485 transceiver control. |+| 39 | VIO | power_in | Non-high-drive I/O supply voltage input, 3.0 V to VDD. |+| 40 | GPIO.1 | bidirectional | General Purpose I/O 1. Alternate function: UART 0 RX toggle indicator. |+| 41 | GPIO.0 | bidirectional | General Purpose I/O 0. Alternate function: UART 0 TX toggle indicator. |+| 42 | RI1 | input | UART 1 Ring Indicator (RI). |+| 43 | DCD1 | input | UART 1 Data Carrier Detect (DCD). |+| 44 | DSR1 | input | UART 1 Data Set Ready (DSR). |+| 45 | DTR1 | output | UART 1 Data Terminal Ready (DTR). |+| 46 | CTS1 | input | UART 1 Clear to Send (CTS). |+| 47 | RTS1 | output | UART 1 Ready to Send (RTS). |+| 48 | RX1 | input | UART 1 Receive (RX). |+| 49 | TX1 | output | UART 1 Transmit (TX). |+| 50 | RI0 | input | UART 0 Ring Indicator (RI). |+| 51 | DCD0 | input | UART 0 Data Carrier Detect (DCD). |+| 52 | DSR0 | input | UART 0 Data Set Ready (DSR). |+| 53 | DTR0 | output | UART 0 Data Terminal Ready (DTR). |+| 54 | CTS0 | input | UART 0 Clear to Send (CTS). |+| 55 | RTS0 | output | UART 0 Ready to Send (RTS). |+| 56 | RX0 | input | UART 0 Receive (RX). |+| 57 | TX0 | output | UART 0 Transmit (TX). |+| 58 | VDD | power_in | Core power supply voltage input (also serves as voltage regulator output). 3.0-3.6 V self-powered. |+| 59 | VSS | power_in | Device ground. |+| 60 | VREGIN | power_in | Voltage regulator input, 4.0-5.5 V when USB bus-powered. Feeds the on-chip 3.3 V voltage regulator. |+| 61 | VBUS | input | USB VBUS sense input. Connect to VBUS signal of USB network. |+| 62 | D+ | bidirectional | USB D+ data line, full-speed (12 Mbps) transceiver. |+| 63 | D- | bidirectional | USB D- data line, full-speed (12 Mbps) transceiver. |+| 64 | RESET | bidirectional | Active-low device reset. Open-drain output of internal POR/VDD monitor; can be driven low externally to force a system reset. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | SKYWORKS SILICON LABS |+| Package | QFN-64-EP(9x9) |+| Category | Interface |+| Pins | 64 |++## Ordering variants++Same part, different packaging or reel option.++- `CP2108-B03-GMR`++## CAD (KiCad official)++- Symbol: `CP2108-B03-GMR`+- Footprint: `Package_DFN_QFN:QFN-64-1EP_9x9mm_P0.5mm_EP6x6mm`+- 3D model: QFN-64-EP(9x9) (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [SKYWORKS SILICON LABS datasheet](docs/cp2108-b03-gmr-datasheet.pdf) (35 pp, sha256 `b08863a6cad1259c`, 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/cp2108-b03-gmr-datasheet.pdf)
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