AT86RF231-ZF Atmel, AT86RF231-ZF Datasheet - Page 47
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AT86RF231-ZF
Manufacturer Part Number
AT86RF231-ZF
Description
TXRX LOW POWER 2.4GHZ 32VQFN
Manufacturer
Atmel
Datasheet
1.AT86RF231-ZUR.pdf
(198 pages)
Specifications of AT86RF231-ZF
Frequency
2.4GHz
Data Rate - Maximum
2Mbps
Modulation Or Protocol
802.15.4 Zigbee, 6LoWPAN, RF4CE, SP100, WirelessHART™, ISM
Applications
Industrial Monitoring and Control, Wireless Alarm and Security Systems
Power - Output
-17dBm ~ 3dBm
Sensitivity
-101dBm
Voltage - Supply
1.8 V ~ 3.6 V
Current - Receiving
12.3mA
Current - Transmitting
14mA
Data Interface
PCB, Surface Mount
Antenna Connector
PCB, Surface Mount
Operating Temperature
-40°C ~ 85°C
Package / Case
32-VQFN Exposed Pad, 32-HVQFN, 32-SQFN, 32-DHVQFN
Number Of Receivers
1
Number Of Transmitters
1
Wireless Frequency
2405 MHz to 2480 MHz
Interface Type
SPI
Noise Figure
6 dB
Output Power
20 dB
Operating Supply Voltage
1.8 V to 3.6 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Maximum Supply Current
12.3 mA
Minimum Operating Temperature
- 40 C
Modulation
OQPSK
Protocol Supported
802.15.4
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Memory Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
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7.2
8111C–MCU Wireless–09/09
Extended Operating Mode
The Extended Operating Mode is a hardware MAC accelerator and goes beyond the basic radio
transceiver functionality provided by the Basic Operating Mode. It handles time critical MAC
tasks, requested by the IEEE 802.15.4 standard, by hardware, such as automatic acknowledge-
ment, automatic CSMA-CA and retransmission. This results in a more efficient IEEE 802.15.4
software MAC implementation including reduced code size and may allow the use of a smaller
microcontroller or to operate at low clock rates.
The Extended Operating Mode is designed to support IEEE 802.15.4-2006 compliant frames;
the mode is backward compatible to IEEE 802.15.4-2003 and supports non IEEE 802.15.4 com-
pliant frames. This mode comprises the following procedures:
Automatic acknowledgement (RX_AACK) divides into the tasks:
Automatic CSMA-CA and Retransmission (TX_ARET) divides into the tasks:
Automatic FCS check and generation, refer to
page
FCS check is always performed for incoming frames.
In TX_ARET mode, an ACK, received within the time required by IEEE 802.15.4, is accepted if
the FCS is valid, and if the sequence number of the ACK matches the sequence number of the
previously transmitted frame. Dependent on the value of the frame pending subfield in the
received acknowledgement frame the transaction status is set, see
An AT86RF231 state diagram including the Extended Operating Mode states is shown in
7-8 on page
represent the Extended Operating Mode.
• Frame reception and automatic FCS check
• Configurable addressing fields check
• Interrupt indicating address match
• Interrupt indicating frame reception, if it passes address filtering and FCS check
• Automatic ACK frame transmission (if the received frame passed the address filter and FCS
• Support of slotted acknowledgment using SLP_TR pin
• CSMA-CA including automatic CCA retry and random back-off
• Frame transmission and automatic FCS field generation
• Reception of ACK frame (if an ACK was requested)
• Automatic frame retry if ACK was expected but not received
• Interrupt signaling with transaction status
check and if an ACK is required by the frame type and ACK request)
85, is used by the RX_AACK and TX_ARET modes. In RX_AACK mode, an automatic
48. Yellow marked states represent the Basic Operating Mode; blue marked states
Section 8.2 “Frame Check Sequence (FCS)” on
Table 7-16 on page
AT86RF231
70.
Figure
47
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