參數(shù)資料
型號(hào)： MC13226V
廠商： FREESCALE SEMICONDUCTOR INC
元件分類： 微控制器/微處理器
英文描述： SPECIALTY MICROPROCESSOR CIRCUIT, PBGA99
封裝： 9.50 X 9.50 MM, 1.20 MM HEIGHT, ROHS COMPLIANT, LGA-99
文件頁數(shù)： 6/54頁
文件大?。?/td> 490K
代理商： MC13226V
MC1322x Technical Data, Rev. 1.3
14
Freescale Semiconductor
3.3.2.2
CRM Operation
The CRM has primary control of the entire system:
Reset and power up — After release of the hardware RESETB signal, the CRM will perform a
power up sequence of the MCU. The linear regulators and clock sources are managed for a graceful
start-up of the MCU and its resources. The radio is not powered until needed
Normal operation of MCU — The clock management of the MCU and its resources are controlled
by the CRM. The processor clock is programmable from low frequencies up to the maximum
reference frequency (13-26 MHz optional w/24 MHz standard) to allow the application to trade-off
processing speed versus power savings
Sleep modes and recovery — There are two sleep modes of Hibernate and Doze. The primary
difference is that Doze mode keeps the reference oscillator running. Both modes can retain critical
programmed parameters and have selectable sizes of RAM retention. Hibernate has lowest power,
but Doze allows high accuracy sleep timing. The CRM manages the recovery from low power,
similar to power-up from reset, providing regulator and clock management.
— Wake-up can be based on external interrupts through 4 KBI inputs
— Wake-up can be from internal interrupts
— Wake-up can be based on an RTI (wake-up) timer.
The RTI timer has two possible frequency sources that provide a very low power wake-up option
from sleep
— One option is an onboard, low accuracy 2 kHz oscillator
— A second option is to add an external 32.768 kHz crystal for the RTI clock source
— A 32-bit timer allows greater than a 36.4 hour wake-up delay with the 32.768 crystal oscillator
Other features of the CRM:
— An optional COP watchdog timer to monitor CPU program activity
— A programmable software reset
3.3.3
Optional Buck Regulator
For battery based applications, an optional buck regulator is provided to maximize battery life. Figure 4
shows the configuration of the buck regulator versus the normal connection. An onboard MOSFET is used
as a switch with an external 100
μH inductor and 10μF capacitor when the buck regulator is enabled.
The buck regulator drops the higher battery voltage to 1.8 - 2.0 Vdc that is applied to the onboard linear
regulators. This allows lower net current from the battery to maximize the life of the battery.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC13226VR2 功能描述:射頻收發(fā)器 Kaibab PRO ROM SE 1.0 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
MC1322X 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Advanced ZigBee?- Compliant Platform-in-Package (PiP) for the 2.4 GHz IEEE? 802.15.4 Standard
MC132333C 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Low Cost SoC Remote Control Platform for the 2.4 GHz IEEE? 802.15.4 Standard
MC13233C 功能描述:射頻收發(fā)器 82KB FLASH 5KB RAM 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
MC13233CR2 功能描述:射頻收發(fā)器 82KB FLASH 5KB RAM 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
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