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參數(shù)資料
| 型號： | MRF24J40-I |
| 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(biāo)準(zhǔn)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-I |
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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
相關(guān)PDF資料 |
PDF描述 |
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| MRF24J40-IMM | IEEE 802.15.4⑩ 2.4 GHz RF Transceiver |
| MRSM75 | Rotation detection MR sensor |
| MRUS51S | Micro power Built-in IC ultra-minimum MR sensor |
| MS-012AA | SOIC: 8−LEAD (POWER ICS ONLY) |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MRF24J40-I/ML | 功能描述:射頻收發(fā)器 2.4 Ghz IEEE/ZigBee RoHS:否 制造商:Atmel 頻率范圍:2322 MHz to 2527 MHz 最大數(shù)據(jù)速率:2000 Kbps 調(diào)制格式:OQPSK 輸出功率:4 dBm 類型: 工作電源電壓:1.8 V to 3.6 V 最大工作溫度:+ 85 C 接口類型:SPI 封裝 / 箱體:QFN-32 封裝:Tray |
| MRF24J40-I/ML | 制造商:Microchip Technology Inc 功能描述:ZIGBEE Transceiver IC |
| MRF24J40-I/T | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:IEEE 802.15.4? 2.4 GHz RF Transceiver |
| MRF24J40-IMM | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:IEEE 802.15.4⑩ 2.4 GHz RF Transceiver |
| 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 |
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