ATmega1284PR231 Atmel Corporation, ATmega1284PR231 Datasheet - Page 14

• Manufacturer Part Number: ATmega1284PR231
• Manufacturer: Atmel Corporation

Specifications of ATmega1284PR231

• Flash (kbytes): 128 Kbytes
• Max. Operating Frequency: 20 MHz
• Max I/o Pins: 32
• Spi: 3
• Twi (i2c): 1
• Uart: 2
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 15
• Analog Comparators: 1
• Crypto Engine: AES
• Sram (kbytes): 16
• Eeprom (bytes): 4096
• Operating Voltage (vcc): 1.8 to 3.6
• Timers: 3
• Frequency Band: 2.4 GHz
• Max Data Rate (mb/s): 2
• Antenna Diversity: Yes
• External Pa Control: Yes
• Power Output (dbm): 3
• Receiver Sensitivity (dbm): -101
• Receive Current Consumption (ma): 13.2
• Transmit Current Consumption (ma): 14.4
• Link Budget (dbm): 104

5.2
Figure 5-2.
8111C–MCU Wireless–09/09
Extended Feature Set Application Schematic
ANT0
ANT1
Extended Feature Application Schematic
SW2
The AT86RF231 supports additional features like:
An extended feature set application schematic illustrating the use of the AT86RF231 Extended
Feature Set, see
ure 5-2 on page
is possible to use all features separately or in various combinations.
In this example, a balun (B1) transforms the differential RF signal at the radio transceiver RF
pins (RFP/RFN) to a single ended RF signal, similar to the Basic Application Schematic; refer to
Figure 5-1 on page
path in an external RF front-end.
These switches are controlled by the RX/TX Indicator, represented by the differential pin pair
DIG3/DIG4, refer to
During receive the radio transceiver searches for the most reliable RF signal path using the
Antenna Diversity algorithm. One antenna is selected (SW2) by the Antenna Diversity RF switch
LNA
•
•
•
•
•
N2
PA
N1
Security Module (AES)
High Data Rate Mode
Antenna Diversity
RX/TX indicator
RX Frame Time Stamp
SW1
14. Although this example shows all additional hardware features combined, it
Section 11. “AT86RF231 Extended Feature Set” on page
12. The RF-Switches (SW1, SW2) separate between receive and transmit
Section 11.5 “RX/TX Indicator” on page
B1
1
2
3
4
5
6
7
8
DIG3
DIG4
AVSS
RFP
RFN
AVSS
DVSS
/RST
uses pins DIG1/2
uses pins DIG3/4
uses pin DIG2
32
9
31
10 11 12 13 14 15 16
V
DD
30
CB1
AT86RF231
CB2
29
28
CB3
CX1
27
see
see
see
see
see
26
CB4
XTAL
25
Section 11.1
Section 11.3
Section 11.4
Section 11.5
Section 11.6
147.
CLKM
DVSS
DVSS
SCLK
MOSI
MISO
/SEL
IRQ
24
23
22
21
20
19
18
17
V
DD
CX2
C3
R1
AT86RF231
128, is shown in
Fig-
14