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参数资料
| 型号： | PIXLITE-SO-PLSE |
| 厂商： | Flexipanel |
| 文件页数： | 4/13页 |
| 文件大小： | 0K |
| 描述： | MODULE ZIGBEE SW SLEEPY 24SMD |
| 标准包装： | 1 |
| 系列： | Pixie™ |
| 频率： | 2.4GHz |
| 调制或协议： | 802.15.4 Zigbee |
| 功率 - 输出： | 0dBm |
| 电源电压： | 2.1 V ~ 3.6 V |
| 电流 - 接收： | 25mA |
| 电流 - 传输： | 25mA |
| 数据接口： | PCB，表面贴装 |
| 存储容量： | 32kB ROM，1536B RAM |
| 天线连接器： | PCB，表面贴装 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 26-SMD |
| 包装： | 管件 |
| 其它名称： | 658-1009-5 PIXIE-LITE-SO-PLSE |
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A 16MHz oscillator is normally fitted.
No voltage regulator is normally fitted. If the PIC is
clocked at 4MHz, DC power between 2.1V and
3.6V should be supplied to Vdd . If the PIC is
clocked at 16MHz, Vdd should be between 2.7V
and 3.6V.
A few I/O lines are not available for external
connection.
Some peripheral components, such as the RS232
converter, LEDs and pushbuttons, have been
If the device being designed is to be battery powered,
aim to use lithium batteries rather than alkaline since
they generally have much better ageing characteristics
and reduced voltage decline over their lifetime.
SPI Port
The internal circuitry of the module uses the PIC MSSI
peripheral in SPI Master mode. With care, other SPI
slaves may also be connected.
omitted.
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Chip select lines must be provided to avoid
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Pixie considerably smaller and lighter.
collision with internal communications.
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Pixies are FCC and CE certified.
A unique MAC address may be obtained from
FlexiPanel for use with the module.
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Microchip Stack firmware should be carefully
understood to ensure communication does not
occur while internal chip select lines are activated.
Specifically, no external slaves should be selected
When used with the ZigBee stack as supplied from
Microchip Technology, the following resources are used
between calls
PHYDeselect() .
to
PHYSelect()
and
by the stack for internal communications:
MRF24J40 migration
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RB0-RB3
RC0-RC2
SPI (RC3-RC5) operating in master mode,
although this may be shared with external
components as detailed in the SPI section below.
Watchdog timer (software enabled)
Timer 0
CCP2
High priority interrupts on CCP2 (FIFOP), INT2
As Microchip roll out their MRF242J40 IEEE 802.15.4
radio chip, their ZigBee stack support will be
increasingly focused on it rather than the CC2420. We
are working with Microchip to provide a seamless, pin
compatible migration path for the Pixie range. Our
intention is to develop MRF24J40-based Pixie devices
as soon as possible. CC2420-based Pixies will
continue to be manufactured.
Firmware
(SFD)
Hardware Options
The following options may be requested for volume
orders:
Crystal: If requested, the crystal oscillator X1 and
oscillator capacitors C3, C4 may be omitted.
Where fitted, X1 is a 16MHz crystal rather than the
4MHz crystal used in the PICDEM Z evaluation kit. This
is in order to reduce the overall size of the module. To
compensate for this difference, disable the oscillator
PLL mode, which the 4MHz oscillator uses to mimic a
16MHz oscillator.
Voltage regulator: The power supply to Vdd should be
2.1V to 3.3V. If requested, a voltage regulator may be
fitted to regulate this from a DC supply to Vunreg within
the limits 2.4V to 20V, 100mA maximum current.
If the voltage regulator is populated, the Vdd pin may be
used as a regulated power output, or as an alternate
regulated power input if Vunreg is not powered.
Note that the 2.1V minimum voltage value quoted
assumes that the PIC is clocked at 4MHz.
Any communications system based on the IEEE
802.15.4 standard could use the Pixie module.
However, it is intended for use as a ZigBee transceiver
using the Microchip ZigBee stack.
ZigBee overview
This section provides a brief overview of the ZigBee
communications protocol. For further details, refer to
the bibliography.
ZigBee’s primary aim is to make low data rate, battery
power communications feasible. Primarily it does this
by using mesh networks of adjacent devices rather than
point-to-point communications over long distances.
(Figure 4.) Additionally, devices are divided into those
which are battery powered end devices which can enter
sleep modes, and routers , which can pass multi-hop
messages through the network and store messages for
end devices while they sleep. One router, called the
coordinator , has special roles relating to overall network
management.
p4
17-Mar-08
Pixie DS481-17
? FlexiPanel Ltd
Patents may apply and/or pending
www.FlexiPanel.com
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