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AT86RF231
1.3
Digital Pins
The AT86RF231 provides a digital microcontroller interface. The interface comprises a slave
SPI (/SEL, SCLK, MOSI and MISO) and additional control signals (CLKM, IRQ, SLP_TR, /RST
and DIG2). The microcontroller interface is described in detail in Section 6. “Microcontroller
Interface” on page 16 .
Additional digital output signals DIG1...DIG4 are provided to control external blocks, i.e. for
Antenna Diversity RF switch control or as an RX/TX Indicator, see Section 11.4 “Antenna Diver-
sity” on page 142 and Section 11.5 “RX/TX Indicator” on page 147 . After reset, these pins are
pulled-down to digital ground (DIG1/DIG2) or analog ground (DIG3/DIG4).
1.3.1
Table 1-3.
Driver Strength Settings
The driver strength of all digital output pins (MISO, IRQ, DIG1, DIG2, DIG3, DIG4) and CLKM
pin can be configured using register 0x03 (TRX_CTRL_0), see Table 1-3 on page 7 .
Digital Output Driver Configuration
Pins
MISO, IRQ, DIG1,..., DIG4
CLKM
Default Driver Strength
2 mA
4 mA
Recommendation/Comment
Adjustable to 2 mA, 4 mA, 6 mA and 8 mA
Adjustable to 2 mA, 4 mA, 6 mA and 8 mA
The capacitive load should be as small as possible as, not larger than 50 pF when using the
2 mA minimum driver strength setting. Generally, the output driver strength should be adjusted
to the lowest possible value in order to keep the current consumption and the emission of digital
signal harmonics low.
1.3.2
Pull-Up and Pull-Down Configuration
All digital input pins are internally pulled-up or pulled-down in radio transceiver state P_ON, see
Section 7.1.2.1 “P_ON - Power-On after VDD” on page 34 . Table 1-4 on page 7 summarizes the
pull-up and pull-down configuration.
Table 1-4.
Pull-Up / Pull-Down Configuration of Digital Input Pins in P_ON State
Pins
/RST
/SEL
SCLK
MOSI
SLP_TR
H =? pull-up, L =? pull-down
H
H
L
L
L
In all other radio transceiver states, no pull-up or pull-down circuitry is connected to any of the
digital input pins mentioned in Table 1-4 on page 7 . In RESET state, the pull-up / pull-down con-
figuration is disabled.
7
8111C–MCU Wireless–09/09
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相关代理商/技术参数
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AT86RF231-ZU_09 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:Low Power 2.4 GHz Transceiver for ZigBee
AT86RF231-ZUR 功能描述:射频收发器 2.4GHz, Zigbee Transceiver RoHS:否 制造商:Atmel 频率范围:2322 MHz to 2527 MHz 最大数据速率:2000 Kbps 调制格式:OQPSK 输出功率:4 dBm 类型: 工作电源电压:1.8 V to 3.6 V 最大工作温度:+ 85 C 接口类型:SPI 封装 / 箱体:QFN-32 封装:Tray
AT86RF232-ZX 功能描述:射频收发器 2.4 GHZ ZIGBEE TRANSCEIVER RoHS:否 制造商:Atmel 频率范围:2322 MHz to 2527 MHz 最大数据速率:2000 Kbps 调制格式:OQPSK 输出功率:4 dBm 类型: 工作电源电压:1.8 V to 3.6 V 最大工作温度:+ 85 C 接口类型:SPI 封装 / 箱体:QFN-32 封装:Tray
AT86RF232-ZXR 功能描述:射频收发器 2.4 GHZ ZIGBEE TRANSCEIVER RoHS:否 制造商:Atmel 频率范围:2322 MHz to 2527 MHz 最大数据速率:2000 Kbps 调制格式:OQPSK 输出功率:4 dBm 类型: 工作电源电压:1.8 V to 3.6 V 最大工作温度:+ 85 C 接口类型:SPI 封装 / 箱体:QFN-32 封装:Tray
AT86RF233-ZF 功能描述:IC RF TXRX+MCU 802.15.4 32-VFQFN 制造商:microchip technology 系列:- 包装:托盘 零件状态:在售 类型:TxRx + MCU 射频系列/标准:802.15.4，通用 ISM > 1GHz 协议:6LoWPAN，Zigbee? 调制:O-QPSK 频率:2.4GHz 数据速率（最大值）:2Mbps 功率 - 输出:4dBm 灵敏度:-101dBm 存储容量:128B SRAM 串行接口:SPI 电压 - 电源:1.8 V ~ 3.6 V 电流 - 接收:11.3mA ~ 11.8mA 电流 - 传输:7.2mA ~ 13.8mA 工作温度:-40°C ~ 125°C 封装/外壳:32-VFQFN 裸露焊盘 标准包装:490
AT86RF233-ZFR 功能描述:IC RF TXRX+MCU 802.15.4 32-VFQFN 制造商:microchip technology 系列:- 包装:剪切带（CT） 零件状态:在售 类型:TxRx + MCU 射频系列/标准:802.15.4，通用 ISM > 1GHz 协议:6LoWPAN，Zigbee? 调制:O-QPSK 频率:2.4GHz 数据速率（最大值）:2Mbps 功率 - 输出:4dBm 灵敏度:-101dBm 存储容量:128B SRAM 串行接口:SPI 电压 - 电源:1.8 V ~ 3.6 V 电流 - 接收:11.3mA ~ 11.8mA 电流 - 传输:7.2mA ~ 13.8mA 工作温度:-40°C ~ 125°C 封装/外壳:32-VFQFN 裸露焊盘 标准包装:1
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