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參數(shù)資料
| 型號： | 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，帶有手動復(fù)位輸入 |
| 文件頁數(shù)： | 5/40頁 |
| 文件大?。?/td> | 384K |
| 代理商： | TC1270A |
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2007 Microchip Technology Inc.
DS22035B-page 5
TC1270A/70AN/71A
1.1.2
TIMING DIAGRAMS AND SPECIFICATIONS
FIGURE 1-2:
MR PIN AND RESET PIN WAVEFORM
FIGURE 1-3:
DEVICE VOLTAGE AND RESET PIN (ACTIVE LOW) WAVEFORM
V
TRIP(MAX)
V
TRIP
TABLE 1-1:
Electrical Characteristics:
Unless otherwise noted, V
DD
= 5V for L/M versions, V
DD
= 3.3V for T/S versions,
V
DD
= 3V for R version, T
A
= -40°C to +125°C. Typical values are at T
A
= +25°C.
Parameter
Sym
Min
RESET AND DEVICE RESET TIMER REQUIREMENTS
Typ
(1)
Max
Units
Test Conditions
V
DD
to Reset Delay
t
RD
—
50
—
μs
V
DD
= V
TRIP(MAX)
to
V
TRIP(MIN)
–125 mV
V
DD
= V
TRIP(MAX)
V
DD
= V
TRIP(MAX)
V
DD
= V
TRIP(MAX)
Reset Active
Timeout
Period
TC127XAx
B
Vyy
(3)
TC127XAx
C
Vyy
(3)
(3)
t
RST
1.09
17.5
140
10
—
—
2.19
35
280
—
0.1
0.2
4.38
70
560
—
—
—
ms
ms
ms
μs
μs
μs
MR Minimum Pulse Width
MR Noise Immunity
MR to Reset Propagation Delay
Note 1:
Unless otherwise stated, data in the Typical (“Typ”) column is at 5V, +25
°
C.
2:
RST output for TC1270A, RST output for TC1271A.
3:
TC127XA refers to either the TC1270A, TC1270AN or TC1271A device. “x” indicated the selected Voltage
Trip Point, while “yy” indicates the package code.
t
MR
t
MRNI
t
MD
MR
RST
t
RST
t
MR
RST
t
MD
t
MRNI
V
TRIP(MIN)
1V
V
DD
t
RST
RST
(1)
RST
t
RST
t
RD
V
DD
< 1V is outside the device operating specification. The RST (or RST) output state is unknown while V
DD
< 1V.
Note 1:
The TC1270AN requires an external pull-up resistor.
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