Document
Features
• High Performance RF-CMOS 2.4 GHz Radio Transceiver Targeted for IEEE 802.15.4™,
ZigBee®, 6LoWPAN, RF4CE, SP100, WirelessHART™ and ISM Applications
• Industry Leading Link Budget (104 dB)
– Receiver Sensitivity -101 dBm
– Programmable Output Power from -17 dBm up to +3 dBm
• Ultra-Low Current Consumption:
– SLEEP
= 0.02 µA
– TRX_OFF
= 0.4 mA
– RX_ON
= 12.3 mA
– BUSY_TX
= 14 mA (at max. Transmit Power of +3 dBm)
• Ultra-Low Supply Voltage (1.8V to 3.6V) with Internal Regulator • Optimized for Low BoM Cost and Ease of Production:
– Few External Components Necessary (Crystal, Capacitors and Antenna) – Excellent ESD Robustness
• Easy to Use Interface:
– Registers, Frame Buffer and AES Accessible through Fast SPI – Only Two Microcontroller GPIO Lines Necessary – One Interrupt Pin from Radio Transceiver – Clock Output with Prescaler from Radio Transceiver
• Radio Transceiver Features:
– 128-byte FIFO (SRAM) for Data Buffering – Programmable Clock Output, to Clock the Host Microcontroller or as Timer
Reference – Integrated RX/TX Switch – Fully Integrated, Fast Settling PLL to support Frequency Hopping – Battery Monitor – Fast Wake-Up Time < 0.4 msec
• Special IEEE 802.15.4-2006 Hardware Support:
– FCS Computation and Clear Channel Assessment
– RSSI Measurement, Energy Detection and Link Quality Indication • MAC Hardware Accelerator:
– Automated Acknowledgement, CSMA-CA and Retransmission
– Automatic Address Filtering
– Automated FCS Check • Extended Feature Set Hardware Support:
– AES 128-bit Hardware Accelerator
– RX/TX Indication (external RF Front-End Control)
– RX Antenna Diversity
– Supported PSDU data rates: 250 kb/s, 500 kb/s, 1 Mb/s and 2 Mb/s
– True Random Number Generation for Security Application • Industrial and Extended Temperature Range:
– -40°C to +85°C and -40°C to +125°C • I/O and Packages:
– 32-pin Low-Profile QFN Package 5 x 5 x 0.9 mm³
– RoHS/Fully Green • Compliant to IEEE 802.15.4-2006 and IEEE 802.15.4-2003 • Compliant to EN 300 328/440, FCC-CFR-47 Part 15, ARIB STD-T66, RSS-210
Low Power 2.4 GHz Transceiver for ZigBee, IEEE 802.15.4, 6LoWPAN, RF4CE, SP100, WirelessHART, and ISM Applications
AT86RF231-ZU AT86RF231-ZF
8111C–MCU Wireless–09/09
AT86RF231
1. Pin-out Diagram
Figure 1-1. AT86RF231 Pin-out Diagram
AVSS AVSS AVSS AVDD EVDD AVSS XTAL1 XTAL2
D IG3 D IG4 AVSS R FP R FN AVSS DVSS /R ST
32 31 30 29 28 27 26 25
1 exposed paddle 24
2 AVSS
23
3 22
4 A T86 R F2 3 1 21
5 20
6 19
7 18
8 17 9 10 11 12 13 14 15 16
IR Q /SEL MOSI DVSS M ISO SCLK DVSS CLKM
DIG1 DIG2 SLP_TR DVSS DV D D DV D D DE V D D DVSS
Note: The exposed paddle is electrically connected to the die inside the package. It shall be soldered to the board to ensure electrical and thermal contact and good mechanical stability.
8111C–MCU Wireless–09/09
2
AT86RF231
1.1 Pin Descriptions
Table 1-1. Pin Description AT86RF231
Pins Name
Type
1 DIG3
Digital output (Ground)
2 DIG4
Digital output (Ground)
3 AVSS Ground
4 RFP
RF I/O
5 RFN
RF I/O
6 AVSS Ground
7 DVSS Ground
8 /RST
Digital input
9 DIG1
Digital output (Ground)
10 DIG2
Digital output (Ground)
11 SLP_TR Digital input
12 DVSS Ground
13 DVDD Supply
14 DVDD Supply
15 DEVDD Supply
16 DVSS Ground
17 CLKM Digital output
18 DVSS Ground
19 SCLK
Digital input
20 MISO
Digital output
21 DVSS Ground
22 MOSI
Digital input
23 /SEL
Digital input
24 IRQ
Digital output
25 XTAL2 Analog input
26 XTAL1 Analog input
27 AVSS
Ground
28 EVDD Supply
Description 1. RX/TX Indicator, see Section 11.5 2. If disabled, pull-down enabled (AVSS) 1. RX/TX indicator (DIG3 inverted), see Section 11.5 2. If disabled, pull-down enabled (AVSS) Ground for RF signals Differential RF signal Differential RF signal Ground for RF signals Digital ground Chip reset; active low 1. Antenna Diversity RF switch control, see Section 11.4 2. If disabled, pull-down enabled (DVSS) 1. Antenna Diversity RF switch control (DIG1 inverted), see Section 11.4 2. Signal IRQ_2 (RX_START) for RX Frame Time Stamping, see Section 11.6 3. If functions disabled, pull-down enabled (DVSS) Controls sleep, transmit start, receive states; active high, see Section 6.5 Digital ground Regulated 1.8V voltage regulator; digital domain, see Section 9.4 Regulated 1.8V voltage regulator; digital domain, see Section 9.4 External supply voltage; digital domain Digital ground Master clock signal output; low if disabled, see Section 9.6 Digital ground SPI clock SPI data output (Master Input Slave Output) Digital ground SPI data input (Master Output Slave Input) SPI select, active low 1. Interrupt request signal; active high or active low; configurable 2. Frame Buffer Empty Indicator; active high, see Section 11.7 Crystal pin, see Section 9.6 Crystal pin or external clock supply, see Section 9.6 Analog ground External supply voltage, analog domain
8111C–MCU Wireless–09/09
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AT86RF231
Table 1-1. Pin Description AT86RF231 (Continued)
Pins Name
Type
Description
.