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參數(shù)資料
| 型號： | MAX6701-08 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Low-Voltage, SOT23 uP Supervisors with Power-Fail In/Out, Manual Reset, and Watchdog Timer |
| 中文描述： | 低電壓，SOT23封裝與電源監(jiān)控失效/輸出，手動復(fù)位和看門狗定時器 |
| 文件頁數(shù)： | 5/12頁 |
| 文件大?。?/td> | 183K |
| 代理商： | MAX6701-08 |
M
Low-Voltage, SOT23 μP Supervisors with Power-
Fail In/Out, Manual Reset, and Watchdog Timer
_______________________________________________________________________________________
5
Pin Description
PIN
MAX6701(A)
MAX6702(A)
MAX6703(A)
MAX6704
MAX6705(A)
MAX6706(A)
MAX6707(A)
MAX6708
NAME
FUNCTION
1
1
1
1
MR
Active-Low, Manual Reset Input, Internal 50k
Pullup to V
CC
.
Pull low to force a reset. Reset remains active as long as
MR
is
low and the reset timeout period after
MR
goes high. Leave
unconnected or connect to V
CC
if unused.
WDO
deasserts
when
MR
is low ( M AX 6701( A) M AX 6702( A) M AX 6703( A)
M AX 6705( A) M AX 6706( A) M AX 6707( A) onl y)
2
2
2
2
V
CC
S up p y V ol ag e for M AX 6701
–
M AX 6708 and Inp ut for P m ar y
Reset Thr eshol d M oni or P ush- p ul outp uts ar e p ow er ed b y V
C C
.
3
3
3
3
GND
Ground
—
4
4
4
PFI
Power-Fail Voltage Monitor Input. High-impedance input for
internal power-fail comparator. Connect this pin to an external
resistive-divider network to set the reset threshold voltage;
0.62V (typ) threshold. Connect to GND or V
CC
when not used.
—
5
5
5
PFO
Power-Fail Monitor Output. Open drain or push-pull active low.
PFO
goes low when PFI is less than 0.62V.
6
6
6
—
WDI
Watchd og Inp ut. If WD r em ai ns hi g h or l ow for l ong er than the
w atchd og ti m eout p er od the i nter nal w atchd og ti m er r uns out and
WDO
i s asser ed
WDO
i s asser ed l ow after each w atchd og
over l ow and r em ai ns l ow unti the w atchd og ti m er i s cl ear ed ( he
r eset outp ut i s not affected The i nter nal w atchd og ti m er cl ear s
w henever a V
C C
/RS T_IN 1/RS T_IN 2 r eset i s asser ed the m anual
r eset i s asser ed or WD sees a r si ng or fal ng ed g e. The
w atchd og ti m er r em ai ns cl ear ed unti the r eset outp ut i s
d easser ed On the M AX 6704,
RES ET
p ul se asser s for the r eset
ti m eout p er od after each w atchd og ti m eout over l ow The
w atchd og ti m er cannot b e d sab ed
—
—
—
6
N.C.
No Connection. Not internally connected.
7
7
7
7
RESET
Acti ve- Low Reset Outp ut ( Op en D ai n or P ush- P ul
RES ET
chang es fr om hi g h to l ow w hen the V
C C
i np ut d op s b el ow the
sel ected r eset thr eshol d ( or RS T_IN 1/ RS T_IN 2 for the
M AX 6701( A) M AX 6702( A) M AX 6703( A)
MR
i s p ul ed l ow or the
w atchd og tr g g er s a r eset ( M AX 6704 onl y)
RES ET
r em ai ns l ow for
the r eset ti m eout p er od after the r eset cond i ons ar e ter m nated
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