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Radio modules deRFarm7-25A00|25C00
ZigBee ? / 6LoWPAN / RF4CE
The pluggable radio module deRFarm7-25A00 features
an AT91SAM7X512 microcontroller and a 2.4 GHz trans-
ceiver AT86RF231. The module complies with IEEE
802.15.4 and can be used for ZigBee / 6LoWPAN /
RF4CE or proprietary applications.
The 25A00 module has two 23 pin male connectors
(1.27 mm pitch) which give access to most functions of
the AT91SAM7X512. The 25C00 is a solderable variant.
The chip ceramic antenna provides a transmitting power
of +2.5 dBm ERP. Distances of more than 200 m can be
reached for line of sight conditions. The integrated trans-
ceiver obtains a receiver sensitivity of –101 dBm. A
hardware 128-Bit AES encryption engine is part of the
transceiver.
The power supply range is from 3.0 VDC to 3.6 VDC with
transmit and receive currents of approx. 45 mA @
12MHz CPU clock. A current consumption of less then
250 μA can be achieved in sleep mode.
Special features of the deRFarm7 module family are the
integrated Ethernet MAC (EMAC) and the integrated
USB device port (UDP)
Technical Data
Page 1 of 2
2011-06-29
Dimensions
Operating temperature
Control and display elements
Power supply
Power consumption
Connections
Antenna
Antenna gain
Antenna diversity
Range
Frequency range
Transmitting power
Receiver sensitivity
IEEE Standard
Data rate (brutto)
Microcontroller
Transceiver
Interfaces
Certification
dresden elektronik
ingenieurtechnik gmbh
Enno-Heidebroek-Str. 12
01237 Dresden | GERMANY
30 x 22.7 mm (25A00)
30 x 20.4 mm (25C00)
-40 to +85°C
no
3.0 – 3.6 VDC
Active: 45 mA @ 12MHz Sleep: < 250 μA
2 x 23 pins
Chip ceramic
+1.3 dBi (Peak), -0.5 dBi (Average)
no
> 200 m (line of sight)
2.4 GHz
+2.5 dBm ERP
-101 dBm
802.15.4
250 kbit/s, 500 kbit/s, 1 Mbit/s, 2 Mbit/s
AT91SAM7X512
AT86RF231
JTAG, DBGU, TWI, SPI, UART, USB, ETH
CE, ETSI, FCC pending
www.dresden-elektronik.de
E-Mail: wireless@dresden-elektronik.de
Phone: +49 351 – 31 85 0-0 Fax: -10
Technical
Data
Contact
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