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參數(shù)資料
| 型號： | MM908E622ACDWB/R2 |
| 廠商： | FREESCALE SEMICONDUCTOR INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PDSO54 |
| 封裝： | 17.90 X 7.50 MM, 0.65 MM PITCH, PLASTIC, SOIC-54 |
| 文件頁數(shù)： | 24/66頁 |
| 文件大小： | 1277K |
| 代理商： | MM908E622ACDWB/R2 |
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Analog Integrated Circuit Device Data
30
Freescale Semiconductor
908E622
FUNCTIONAL DEVICE OPERATION
OPERATIONAL MODES
Figure 15. Internal Reset Routing
RESET SOURCE
High Temperature Reset
The device is protected against high temperature. When
the chip temperature exceeds a certain temperature, a reset
(HTR) is generated. The reset is flagged by the HTR bit in the
Interrupt Flag Register. A HTR event will reset all registers in
the SPI excluding the RSR.
The HTR can be disabled by the HTRD bit in the Interrupt
Mask register.
Note: Disabling the high temperature reset can lead to
destruction of the part, in cases of high temperature. This bit
was foreseen for test purposes only!
Watchdog Reset
The Watchdog module generates a reset, because of a
watchdog timeout or wrong watchdog timer reset. Reset is
flagged by the WDR bit in the Reset Status Register. A
Watchdog reset event will reset all registers in the SPI
excluding the RSR.
Main VREG Low Voltage Reset
The LVR is related to the Main VDD. When the voltage
falls below a certain threshold, it will pull down the RST_A
pin. Reset is flagged by the LVR bit in the Reset Status
Register. An LVR event will reset all register in the SPI,
excluding the RSR.
Power On Reset
The POR is related to the internal 5V supply. When the
device detects a power on, the POR bit in the Reset Status
Register (RSR) is set. A power on reset will reset all registers
in the SPI including the RSR and set the POR bit.
The Power On Reset circuitry will force the RST_A pin low
for tRST after the VDD has reached its nominal value (above
LVR Threshold). Also see Figure 10, page 19).
Reset pin / external Reset
An external reset can be applied by pulling down the
RST_A pin. The reset event is flagged by the PINR bit in the
reset status register.
Reset Status Register
This register contains five flags that show the source of the
last reset. A power on reset sets the POR bit and clears all
other bits in the Reset Status Register. All bits can be cleared
by writing a one to the corresponding bit. Uncleared bits
remain set as long as they are not cleared by a power on
reset or by software.
In addition the register includes two flags which will
indicate the source of a wake-up from Sleep mode: Either by
LIN bus activity or an event on the L0 wake-up input pin.
RSR
WDRE
WD Reset Sensor
VDD
RST_A
SPI REGISTERS
Reset SPI Register
(not RSR)
POR internal VREG
LVR Main VREG
HTRD
HTR Reset Sensor
MONO FLOP
Pulse Duration
after reset event is
removed
Clear RSR and set
POR Bit
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MM908E622ACEK | 功能描述:8位微控制器 -MCU QUAD H-B TRIHS EC GLASS RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT |
| MM908E622ACPEK | 功能描述:IC QUAD HALF BRDG TRPL SW 54SOIC RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器 - 特定應用 系列:- 產(chǎn)品變化通告:Product Discontinuation 26/Aug/2009 標準包裝:250 系列:- 應用:網(wǎng)絡處理器 核心處理器:4Kc 程序存儲器類型:- 控制器系列:- RAM 容量:16K x 8 接口:以太網(wǎng)，UART，USB 輸入/輸出數(shù):- 電源電壓:1.8V, 3.3V 工作溫度:- 安裝類型:表面貼裝 封裝/外殼:208-LQFP 包裝:帶卷 (TR) 供應商設備封裝:PG-LQFP-208 其它名稱:SP000314382 |
| MM908E622ACPEKR2 | 功能描述:8位微控制器 -MCU QUAD H-B, TRIHS, EC RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT |
| MM908E624 | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:TRIPLE HIGH-SIDE SWITCH WITH EMBEDDED MCU AND LIN |
| MM908E624ACDWB | 功能描述:IC TRPL SWITCH MCU/LIN 54-SOIC RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微控制器 - 特定應用 系列:- 產(chǎn)品變化通告:Product Discontinuation 26/Aug/2009 標準包裝:250 系列:- 應用:網(wǎng)絡處理器 核心處理器:4Kc 程序存儲器類型:- 控制器系列:- RAM 容量:16K x 8 接口:以太網(wǎng)，UART，USB 輸入/輸出數(shù):- 電源電壓:1.8V, 3.3V 工作溫度:- 安裝類型:表面貼裝 封裝/外殼:208-LQFP 包裝:帶卷 (TR) 供應商設備封裝:PG-LQFP-208 其它名稱:SP000314382 |
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