参数资料
型号: TC1271ASBVCT
元件分类: 电源管理
英文描述: 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5
封装: LEAD FREE, PLASTIC, SOT-23, 5 PIN
文件页数: 7/40页
文件大小: 551K
代理商: TC1271ASBVCT
2007 Microchip Technology Inc.
DS22035B-page 15
TC1270A/70AN/71A
33
3
MR
IST (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.
24
2
4
VDD
Power
Supply Voltage
1
——
1
NC
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)
SOT
-23-5
SOT
-143
-4
SOT
-23-5
SOT
-23-5
SOT
-143
-4
Type
Buffer
/
Driver
Note 1:
The MR pin has an internal weak pull-up (18.5 k
Ω typical).
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