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參數(shù)資料
| 型號： | MRF24J40-IMM |
| 廠商： | Microchip Technology Inc. |
| 英文描述： | IEEE 802.15.4⑩ 2.4 GHz RF Transceiver |
| 中文描述： | IEEE 802.15.4標準⑩2.4 GHz射頻收發(fā)器 |
| 文件頁數(shù)： | 15/66頁 |
| 文件大?。?/td> | 748K |
| 代理商： | MRF24J40-IMM |
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2006 Microchip Technology Inc.
Advance Information
DS39776A-page 13
MRF24J40
4.0
SERIAL PERIPHERAL
INTERFACE (SPI)
4.1
Overview
The MRF24J40 is designed to interface directly with
the Serial Peripheral Interface (SPI) port available on
many microcontrollers. The implementation used on
this device supports SPI mode 0,0 only. In addition, the
SPI port requires that SCK be Idle in a low state;
selectable clock polarity is not supported.
Commands and data are sent to the device via the SDI
pin, with data being clocked in on the rising edge of
SCK. Data is driven out by the MRF24J40 on the SDO
line, on the falling edge of SCK. The CS pin must be
held low while any operation is performed and returned
high when finished.
The MRF24J40 accesses the short and long RAM
banks in a slightly different manner. The following
sections describe the required waveforms in order to
read and write from both short and long RAM
addresses.
FIGURE 4-1:
SPI INPUT TIMING
FIGURE 4-2:
SPI OUTPUT TIMING
CS
SCK
SDI
SDO
LSb In
MSb In
High-Impedance State
CS
SCK
SDO
MSb Out
LSb Out
Don’t Care
SDI
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MRF24J40MA | 制造商:Microchip Technology Inc 功能描述:WIRELESS TRANCEIVER MODULE, Supply Voltage Min:2.4V, Supply Voltage Max:3.6V, MS |
| MRF24J40MA-I/RM | 功能描述:Zigbee/802.15.4模塊 2.4GHz IEEE 802.15.4 Transceiver Module RoHS:否 制造商:Digi International 頻帶:902 MHz to 928 MHz 視線范圍: 數(shù)據(jù)速率: 靈敏度: 工作電源電壓:2.4 V to 3.6 V 傳輸供電電流:215 mA 接收供電電流:26 mA 輸出功率:250 mW 天線連接器類型:Wire 最大工作溫度:+ 85 C 尺寸:32.94 mm x 22 mm x 2.03 mm |
| MRF24J40MAT-I/RM | 功能描述:射頻接收器 2.4GHz IEEE 802.15.4 Transceiver Module RoHS:否 制造商:Skyworks Solutions, Inc. 類型:GPS Receiver 封裝 / 箱體:QFN-24 工作頻率:4.092 MHz 工作電源電壓:3.3 V 封裝:Reel |
| MRF24J40MB-I | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:IEEE 802.15.4a?￠ 2.4 GHz RF Transceiver |
| MRF24J40MB-I/RM | 功能描述:Zigbee/802.15.4模塊 2.4GHz, 802.15.4 Xcvr w/int PA RoHS:否 制造商:Digi International 頻帶:902 MHz to 928 MHz 視線范圍: 數(shù)據(jù)速率: 靈敏度: 工作電源電壓:2.4 V to 3.6 V 傳輸供電電流:215 mA 接收供電電流:26 mA 輸出功率:250 mW 天線連接器類型:Wire 最大工作溫度:+ 85 C 尺寸:32.94 mm x 22 mm x 2.03 mm |
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