Data Sheet
Available I/O
UARTS with optional HW
Flow Control
2 Ports
GPIO 20 total; 7 can be analog-in with 10bit ADC
Agency
Approvals
FCC Part 15.247 U9O-RF220SU
CE Certified The RF220SU-EUis certified to EN300 328 Version 1.8.1
Industry Canada (IC) 7084A-RF220SU
RF220SU Module Pin Definitions
For pin locations, consult RF220SUMechanical Drawing on page 5 later in this document.
RF220SU
Pin
Pin Name
SNAPpy
IO
ATmega128RFA1 Pin
Name
Pin Description
1 GND GND Power Supply
2 GPIO0 7 PB7_OC0A_OC1C_PCINT7 IO or PWM or Interrupt
3 GPIO1 6 PB6_OC1B_PCINT6 IO or PWM or Interrupt
4 GPIO2 5 PB5_OC1A_PCINT5 IO or PWM or Interrupt
5 GPIO3 16 PE0_RXD0_PDI_PCINT8 IO or UART0 Rx or Interrupt
6 GPIO4 17 PE1_TXD0 IO or UART0 Tx
7 GPIO5 20 PE4_CTS0_OC3B_INT4
IO or UART0 CTS Output or PWM or
Interrupt
8 GPIO6 21 PE5_RTS0_OC3C_INT5
IO or UART0 RTS Input or PWM or
Interrupt
9 GPIO7 10 PD2_RXD1_INT2 IO or UART1 Rx or Interrupt
10 GPIO8 11 PD3_TXD_INT3 IO or UART1 Data Out or Interrupt
11 GPIO9 12 PD4_CTS1_ICP1
IO or UART1 CTS output or Input
Capture
12 GPIO10 23 PE7_RTS1_ICP3_INT7_CLK0
IO or UART1 RTS input or Clock
Output Buffer or Interrupt
13 GPIO11 24 PF0_ADC0 IO or Analog0
14 GPIO12 25 PF1_ADC1 IO or Analog1 or software SPI MOSI
15 GPIO13 26 PF2_ADC2_DIG2
IO or Analog2 or software SPI CLK1
or Antenna Diversity Control
Table 1.2: RF220SU Pin Assignments
3