參數(shù)資料
型號: M44C090
廠商: TEMIC SEMICONDUCTORS
元件分類: 微控制器/微處理器
英文描述: Low-Current Microcontroller for Wireless Communication
中文描述: 4-BIT, MROM, MICROCONTROLLER, PDSO20
封裝: SSOP-20
文件頁數(shù): 14/63頁
文件大?。?/td> 503K
代理商: M44C090
M44C890
M44C090
Rev.A4, 14-Dec-01
14 (63)
2.4.1
Voltage Monitor Control / Status Register
Primary register address:
F
hex
VM0
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VM2: V
oltage monitor
M
ode bit 2
VM1: V
oltage monitor
M
ode bit 1
VM0: V
oltage monitor
M
ode bit 0
0
1
0
0
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0
1
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Internal (supply voltage), middle threshold (2.6 V), interrupt with negative slope
Internal (supply voltage), low threshold (2.2 V), interrupt with negative slope
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VIM V
oltage
I
nterrupt
M
ask
bit
VIM = 0, voltage monitor interrupt is enabled
VIM = 1, voltage monitor interrupt is disabled
VMS V
oltage
M
onitor
S
tatus
bit
VMS = 0, the voltage at the comparator input is below Vref
VMS = 1, the voltage at the comparator input is above Vref
Low threshold
Middle threshold
High threshold
VDD
VMS = 1
Low threshold
Middle threshold
High threshold
VMS = 0
3.0 V
2.6 V
2.2 V
13755
Figure 12. Internal supply voltage supervisor
1.3 V
VMI
VMS = 1
VMS = 0
Positive slope
Negative slope
VMS = 1
VMS = 0
Interrupt negative slope
Interrupt positive slope
Internal reference level
t
13756
Figure 13. External input voltage supervisor
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