CP2104
Interface_USB
Single-Chip USB-to-UART Bridge, USB 2.0 Full-Speed, 2Mbps UART, QFN-24
Symbol
25 pins- Units
- 1
- Kind
- part
- Grid
- on 1.27 mm
Footprint
25 pads- Library
- Package_DFN_QFN
- Mount
- smd
- Courtyard
- 5.2 × 5.2 mm
- Link
- exact
- Footprint page
- Open →
3D model
STEPPackage_DFN_QFN_QFN-24-1EP_4x4mm_P0.5mm_EP2.6x2.6mm
4 × 4 × 0.77 mm
271 KB STEP
- Library
- Package_DFN_QFN_QFN-24-1EP_4x4mm_P0.5mm
- Link
- exact
- Model page
- Open →
Pins and pads
Every pin on the symbol has a pad on the footprint.
| Pin | Name | Type | Pad |
|---|---|---|---|
| 1 | ~{RI} | input | 1 |
| 2 | GND | power_in | 2 |
| 3 | D+ | bidirectional | 3 |
| 4 | D- | bidirectional | 4 |
| 5 | VIO | power_in | 5 |
| 6 | VDD | power_in | 6 |
| 7 | REGIN | power_in | 7 |
| 8 | VBUS | input | 8 |
| 9 | ~{RST} | bidirectional | 9 |
| 10 | NC | no_connect | 10 |
| 11 | GPIO.3 | bidirectional | 11 |
| 12 | RS485/GPIO.2 | bidirectional | 12 |
| 13 | RXT/GPIO.1 | bidirectional | 13 |
| 14 | TXT/GPIO.0 | bidirectional | 14 |
| 15 | ~{SUSPEND} | output | 15 |
| 16 | VPP | passive | 16 |
| 17 | SUSPEND | output | 17 |
| 18 | ~{CTS} | input | 18 |
| 19 | ~{RTS} | output | 19 |
| 20 | RXD | input | 20 |
| 21 | TXD | output | 21 |
| 22 | ~{DSR} | input | 22 |
| 23 | ~{DTR} | output | 23 |
| 24 | ~{DCD} | input | 24 |
| 25 | GND | passive | 25 |
On real boards
20+ designs use this part
14 placed it by name in a schematic; 6 carry its footprint on a board, and no other part in the catalog uses that footprint. Largest first.
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- Hw Kirdy Laser Drv BOARD4by footprint
- Resources Hardware Main BOARD5by footprint
- Resources Hardware Main BOARD4by footprint
- S Kicad LAN9254 Evr Prototypeby footprint
- Soft Kibot 3d Models Cache Exampleby name
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- Alphaby name
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- Embedded System Designsby name
- Embedded System Designsby name
- ESP32 Boardby name
- ESP32 C6 DevBoard 1by name
- CopterCat CM4by name
- UModbusAdapterby name
Provenance
- Source
- kicad-symbols
- Credit
- KiCad Libraries Contributors
- Licence
- CC-BY-SA-4.0-with-KiCad-exception
- Link method
- exact
- Cross-check
- passed
