參數資料
型號: MCP1319
廠商: Microchip Technology Inc.
英文描述: Voltage Supervisor
中文描述: 電壓監(jiān)控
文件頁數: 9/44頁
文件大?。?/td> 924K
代理商: MCP1319
2005 Microchip Technology Inc.
DS21985A-page 9
MCP131X/2X
FIGURE 1-2:
MR and Reset Pin Waveforms.
TABLE 1-2:
Electrical Specifications:
Unless otherwise indicated, all limits are specified for V
DD
= 1V to 5.5V, R
PU
= 100 k
Ω
(only
MCP1320
,
MCP1321
and
MCP1322
), T
A
= -40°C to +125°C.
Parameters
Sym
Min
MR AND RESET PIN TIMINGS
FIGURE 1-3:
WDI and Reset Pin Waveforms.
TABLE 1-3:
Electrical Specifications:
Unless otherwise indicated, all limits are specified for V
DD
= 1V to 5.5V, R
PU
= 100 k
Ω
(only
MCP1320
,
MCP1321
and
MCP1322
), T
A
= -40°C to +125°C.
Parameters
Sym
Min
WDI AND RESET PIN TIMINGS
Typ
Max
Units
Conditions
MR Pulse Width
MR Active to RST/RST Active
MR Input Noise filter
Note 1:
These parameters are for design guidance only and are not 100% tested.
t
MR
t
MRD
t
NF
1
235
150
μ
s
ns
ns
V
DD
= 5.0V
V
DD
= 5.0V
Typ
Max
Units
Conditions
WDI Pulse Width
Watchdog Time Out Period
t
WP
t
WD
50
4.3
71
1.12
17.9
6.3
102
1.6
25.6
9.3
153
2.4
38.4
ns
ms
ms
sec
sec
Note 1
Note 1
Standard Time Out
Note 1
Note 1:
Custom ordered WatchDog Timer time out; minimum order volume requirement.
MR
RST
t
RST
t
MR
RST
t
MRD
t
NF
RST
RST
WDI
(Note 1)
t
WP
t
WD
t
WD
t
RST
Note 1:
The WDI pin was a weak pull-up resistor which is disabled after the 1st falling edge on the WDI pin.
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