RC11xx(HP)-TM
RC25xx(HP)-TM
RC17xx(HP)-TM
2016 Radiocrafts AS
RC11xx(HP)/25xx(HP)/17xx(HP)-TM Data Sheet rev. 1.48 Page 14 of 86
2016 Tiny Mesh AS
Radiocrafts
Embedded Wireless Solutions
Pin Description, RC17xx Devices
Pin no
Pin name
Pin type
Description
Equivalent circuit
1
GND
System ground
2
CTS / RXTX
Output
UART CTS or RTX Active Low
3
RTS / SLEEP
Input
UART RTS or Module Sleep
5
4
CONFIG
Input
Configuration Enable. Active low.
Should normally be set high
6
.
5
TXD
Output
UART TX Data
6
RXD
Input
UART RX Data.
Use external max 8k2 pull-up resistor
if connected to an open collector
output from a host MCU or other high
impedance circuitry like level
shifters.
7
Never leave RXD-pin floating
.
7
GND
System ground
8
GND
System ground
9
RF
RF I/O connection to antenna
10
GND
System ground
11
NC
Not connected
12
RESET
Input
Main reset (active low). Should
normally be left open. Internal 12 k
pull-up resistor.
5
The internal pull-up is disabled when configured for SLEEP function.
6
The internal pull-up is disabled when the SET SLEEP MODE (Z-COMMAND) command has been used to enter
sleep mode
7
For UART communication, the TXD and RXD are used for serial data, and CTS for flow control.
RXD must be high when not sending data to the module.