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參數(shù)資料
| 型號： | MM908E621ACDWB |
| 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)： | 28/62頁 |
| 文件大?。?/td> | 917K |
| 代理商： | MM908E621ACDWB |
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Analog Integrated Circuit Device Data
34
Freescale Semiconductor
908E621
FUNCTIONAL DEVICE OPERATION
OPERATIONAL MODES
Figure 18. General purpose / hall-effect sensor input (H0)
Current Coded Hallsensor Input
H0 is selected as “2 pin hallsensor input”, if the
corresponding H0MS bit in the H0/L0 Status and Control
Register (HLSCTL) is set. In this mode the terminal current to
GND is monitored by a special sense circuitry. Setting bit
H0EN in the H0/L0 Status and Control Register switches the
output to VSUP and enable the sense circuitry. The result of
the sense operation is given by the H0F flag. The flag is low
if the sensed current is higher than the sense current
threshold IHSCT. In this configuration the HO terminal is
protected (current limitation) against short circuit to GND.
After switching on the hallport (H0EN = “1”) the hallsensor
needs some time to stabilize the output. In RUN mode the
software has to take care about waiting for a few s (40)
before sensing the hallflags.
The hallport output current is sensed. In case of an
overcurrent (short to GND) the hallport overcurrent flag
(H0OCF) is set and the current is limited. For proper
operation of the current limitation an external capacitor
(>100nF) close to the H0 terminal is required.
Current
Sense
H0EN
VSUP
H0EN
H0F
H0MS
VDD
10k
H0
H0PD
Current
Sense
H0EN
VSUP
V
H0F
2 pin hall sensor
GND
H0
>0.1uF
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MM908E621ACDWB/R2 | 制造商:FREESCALE 制造商全稱: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 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(fēng)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 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(fēng)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 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(fēng)格:SMD/SMT |
| MM908E622 | 制造商:FREESCALE 制造商全稱: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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