參數(shù)資料
型號: TC1271A
廠商: Microchip Technology Inc.
英文描述: Voltage Supervisor with Manual Reset Input
中文描述: 電壓監(jiān)控器,帶有手動復(fù)位輸入
文件頁數(shù): 15/40頁
文件大?。?/td> 384K
代理商: TC1271A
2007 Microchip Technology Inc.
DS22035B-page 15
TC1270A/70AN/71A
3
3
3
3
MR
I
ST
(1)
Manual Reset input pin
This input allows a push button switch to be
directly connected to the
TC1270A/70AN/71A’s MR pin, which can then
be used to force a system Reset. The input fil-
ter (ignores) noise pulses that occur on the
MR pin.
H = Switch is open (internal pull-up resistor
pulls signal high). State of the RST/RST
pin determined by other system condi-
tions.
L = Switch is depressed (shorted to ground).
This forces the RST/RST pin Active.
2
4
2
4
V
DD
NC
Power
Supply Voltage
1
1
No Connection
TABLE 3-1:
PINOUT DESCRIPTION (CONTINUED)
Pin Number
Sym
Pin
Standard Function
TC1270A
(Push-Pull,
active low)
TC1270AN
(Open-Drain,
active low)
TC1271A
(Push-Pull,
active high)
S
S
S
S
S
Type
Buffer
/
Driver
Note 1:
The MR pin has an internal weak pull-up (18.5 k
Ω
typical).
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