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参数资料
| 型号： | MM908E621ACDWB |
| 厂商： | FREESCALE SEMICONDUCTOR INC |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PDSO54 |
| 封装： | 17.90 X 7.50 MM, 0.65 MM PITCH, PLASTIC, SOIC-54 |
| 文件页数： | 18/62页 |
| 文件大小： | 917K |
| 代理商： | MM908E621ACDWB |
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Analog Integrated Circuit Device Data
Freescale Semiconductor
25
908E621
FUNCTIONAL DEVICE OPERATION
OPERATIONAL MODES
Stop mode has a higher current consumption than Sleep
mode, but allows a quicker wake-up. Additionally the wake-
up sources can be selected (maskable) which is not possible
in Sleep mode.
Figure 12 show the procedure to enter the Stop mode and
how the system is waking up.
Figure 12. STOP mode Wake-up Procedure
Sleep Mode
In Sleep mode the voltage regulator is turned off and the
MCU is not supplied (VDD = 0 V) also the RST_A terminal is
pulled low.
To enter the Sleep mode the Sleep bit in the System
Control Register has to be set.
Wake-up from this mode is possible by LIN bus activity or
the wake-up input L0 and is not maskable. The wake-up
behaves like a power on reset. The wake-up / reset source
can be evaluated by the L0WF and/or LINWF bits in the
Reset Status Register.
Sleep mode has a lower current consumption than Stop
mode, but requires a longer time to wake-up. The wake-up
sources can not be selected (not maskable).
Figure 13 show the procedure to enter the Sleep mode
and how a wake-up is performed.
Figure 13. SLEEP mode Wake-up Procedure
Table 6 summarized the Operating modes.
From Reset
initialize
operate
SPI:
STOP =1
MCU STOP
IRQ
interrupt
?
SPI: reason for
interrupt
Switch to VREG
low current mode
Assert IRQ
Switch to VREG
high current mode
MCU
Power Die
Wake Up on
LIN or L0 ?
Enable/disable
LIN/L0 wakeup
From Reset
initialize
operate
SPI:
SLEEP =1
Switch off VREG
Vdd low, RST low
Store Wake Up
Event
Start VREG
Vdd high, RST
high
MCU
Power Die
Wake Up on
LIN or L0 ?
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MM908E621ACDWB/R2 | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:Integrated Quad Half-bridge and Triple High Side with Embedded MCU and LIN for High End Mirror |
| MM908E621ACDWBR2 | 功能描述:8位微控制器 -MCU QUAD HB / TRIPLE HS 841B RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT |
| MM908E621ACPEK | 功能描述:8位微控制器 -MCU QUAD H-B/3-HS W/MCU & LI RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT |
| MM908E621ACPEKR2 | 功能描述:8位微控制器 -MCU QUAD HB AND TRIPLE HS RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT |
| MM908E622 | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:Integrated Quad Half-Bridge, Triple High-Side and EC Glass Driver with Embedded MCU and LIN for High End Mirror |
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