參數(shù)資料
型號(hào): TC1270A
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(dòng)復(fù)位輸入
文件頁(yè)數(shù): 14/40頁(yè)
文件大?。?/td> 384K
代理商: TC1270A
TC1270A/70AN/71A
DS22035B-page 14
2007 Microchip Technology Inc.
3.0
PIN DESCRIPTIONS
The descriptions of the pins are listed in
Table 3-1
.
TABLE 3-1:
PINOUT DESCRIPTION
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
5
1
5
1
V
SS
Power
Ground
4
2
RST
O
Push-
Pull
Reset output (Push Pull), active low
H = V
DD
> V
TRIP
, Reset pin is inactive
(after Reset Timer Delay completes)
L = V
DD
< V
TRIP
, Reset pin is active
Goes active (Low) if one of these conditions
occurs:
1.
If V
DD
falls below the selected Reset
voltage threshold.
2.
If the MR pin is forced low.
3.
During power-up.
4
RST
O
Open-
Drain
Reset output (Open-Drain), active low
Float = V
DD
> V
TRIP
, Reset pin is inactive
(after Reset Timer Delay completes)
L = V
DD
< V
TRIP
, Reset pin is active
Goes active (Low) if one of these conditions
occurs:
1.
If V
DD
falls below the selected Reset
voltage threshold.
2.
If the MR pin is forced low.
3.
During power-up.
4
2
RST
O
Push-
Pull
Reset output (Push Pull), active high
H = V
DD
< V
TRIP
, Reset pin is active
L = V
DD
> V
TRIP
, Reset pin is inactive
(after Reset Timer Delay completes)
Goes active (High) if one of these conditions
occurs:
1.
If V
DD
falls below the selected Reset
voltage threshold.
2.
If the MR pin is forced low.
3.
During power-up.
Note 1:
The MR pin has an internal weak pull-up (18.5 k
Ω
typical).
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