CP2102N USB-to-UART Bridge Controller
Silicon Labs USB-to-UART bridge with USB 2.0 full-speed interface, UART flow control, GPIO, USB charger control and suspend outputs. QFN28 pinout.
Aliase:CP2102N-QFN28, CP2102N-QFN24, CP2102N-QFN20
QFN28 Top View
29 Pins
Pin-Tabelle29
| Pin | Signal / Name | Typ | Alternative Funktionen |
|---|---|---|---|
| 1 | ~DCD | Digital | Data Carrier Detect control input (active low) |
| 2 | RI / CLK | Digital | Ring Indicator control input (active low)Clock output |
| 3 | GND | Ground | Ground |
| 4 | D+ | Digital | USB Data Positive |
| 5 | D- | Digital | USB Data Negative |
| 6 | VDD | Power | Supply power input / 5V regulator output |
| 7 | VREGIN | Power | 5V regulator input |
| 8 | VBUS | Digital | VBUS sense input, 5V indicates USB connection |
| 9 | ~RSTb | Digital | Active-low reset |
| 10 | NC | NC | No connect (leave floating) |
| 11 | ~SUSPENDb | Digital | Driven low when device enters USB suspend |
| 12 | SUSPEND | Digital | Driven high when device enters USB suspend |
| 13 | CHREN | Digital | Enable charging circuit (100 mA) |
| 14 | CHR1 | Digital | Enable highest charging current (1.5 A) |
| 15 | CHR0 | Digital | Enable higher charging current (500 mA) |
| 16 | GPIO.3 / WAKEUP | Digital | General purpose I/ORemote USB wakeup interrupt input |
| 17 | GPIO.2 / RS485 | Digital | General purpose I/ORS485 control signal |
| 18 | GPIO.1 / RXT | Digital | General purpose I/OReceive LED toggle |
| 19 | GPIO.0 / TXT | Digital | General purpose I/OTransmit LED toggle |
| 20 | GPIO.6 | Digital | General purpose I/O |
| 21 | GPIO.5 | Digital | General purpose I/O |
| 22 | GPIO.4 | Digital | General purpose I/O |
| 23 | ~CTS | Digital | Clear To Send control input (active low) |
| 24 | ~RTS | Digital | Ready To Send control output (active low) |
| 25 | RXD | Digital | Asynchronous data input (UART Receive) |
| 26 | TXD | Digital | Asynchronous data output (UART Transmit) |
| 27 | ~DSR | Digital | Data Set Ready control input (active low) |
| 28 | ~DTR | Digital | Data Terminal Ready control output (active low) |
| EP | GND | Ground | Center ground pad |