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Radiocrafts RC11xx-RC232 Embedded Wireless Solutions Pin Assignment 30 GND 29 28 27 26 25 24 23 1 14 GND CTS/RXTX 2 13 VCC RTS/SLEEP 3 12 CONFIG 4 11 TXD 5 10 RXD 6 9 GND 7 8 15 16 17 18 19 20 21 RESET NC GND RF GND 22 Pin Description Pin no Pin name 1 GND Pin type Description System ground 2 Output 3 4 5 6 7 8 CTS/RXTX RTS/SLEEP CONFIG TXD RXD GND GND 2010 Radiocrafts AS Input Input Output Input UART Clear to Send or UART RXTX UART Request to Send. Set low to enter Sleep mode if RTS handshake is not in use. (See Note 2) Configuration Enable. Active low. Should normally be set high. (See Note 2) UART TX Data UART RX Data. Use external max 8k2 kohm pull-up resistor if connected to an open collector output from a host MCU or other high impedance circuitry like level shifters. (See Note 1) System ground System ground RC11xx-RC232 Data Sheet (rev. 1.42) Equivalent circuit GND VCC Input: 20k VCC Output: GND Page 3 of 22