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參數(shù)資料
| 型號(hào)： | MAX812 |
| 廠商： | ON SEMICONDUCTOR |
| 英文描述： | 4-Pin μP Reset Monitor(3腳μP監(jiān)控電路復(fù)位監(jiān)視器（高電平復(fù)位）) |
| 中文描述： | 4引腳微處理器電壓監(jiān)視器，帶有手動(dòng)復(fù)位輸入 |
| 文件頁(yè)數(shù)： | 2/8頁(yè) |
| 文件大?。?/td> | 52K |
| 代理商： | MAX812 |
MAX811, MAX812
http://onsemi.com
2
ABSOLUTE MAXIMUM RATINGS*
Rating
Symbol
Value
Unit
Supply Voltage (V
CC
to GND)
–
+6.0
V
RESET, RESET
–
–0.3 to (V
CC
+0.3)
V
Input Current, V
CC
–
20
mA
Output Current, RESET, RESET
–
20
mA
Operating Temperature Range
T
A
–40 to +85
°
C
Storage Temperature Range
T
stg
–65 to +150
°
C
Lead Temperature (Soldering, 10 sec)
–
+260
°
C
*This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational
sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(V
CC
= 5 V for L/M versions, V
CC
= 3.3 V for T/S versions, V
CC
= 3 V for R version,
V
CC
= 2.0 V for F version. T
A
= –40
°
C to +85
°
C unless otherwise noted. Typical values are at T
A
= +25
°
C.) (Note 1.)
Characteristics
Test Conditions
Symbol
Min
Typ
Max
Unit
V
CC
Range
–
V
CC
1.2
–
5.5
V
Supply Current
V
CC
V
CC
V
TH
, for L, M, R, S, T, F
V
TH
, for L, M, R, S, T
V
CC
V
TH
, for F
I
CC
–
–
–
7.0
10
6.0
15
15
12
μ
A
Reset Threshold
MAX81_L: T
A
= +25
°
C
T
A
= –40
°
C to +85
°
C
MAX81_M: T
A
= +25
°
C
T
A
= –40
°
C to +85
°
C
MAX81_T: T
A
= +25
°
C
T
A
= –40
°
C to +85
°
C
MAX81_S: T
A
= +25
°
C
T
A
= –40
°
C to +85
°
C
MAX81_R: T
A
= +25
°
C
T
A
= –40
°
C to +85
°
C
MAX81_F: T
A
= +25
°
C
T
A
= –40
°
C to +85
°
C
V
TH
4.54
4.50
4.30
4.25
3.03
3.00
2.88
2.85
2.58
2.55
1.71
1.70
4.63
–
4.38
–
3.08
–
2.93
–
2.63
–
1.75
–
4.72
4.75
4.46
4.50
3.14
3.15
2.98
3.00
2.68
2.70
1.79
1.80
V
Reset Threshold Tempco
–
–
–
30
–
ppm/
°
C
V
CC
to Reset Delay
V
CC
= V
TH
to V
TH
–125 mV;
L, M, R, S, T, F
–
–
–
20
5.0
–
–
μ
sec
Reset Active Timeout Period
V
CC
= V
TH(MAX)
t
RP
140
280
560
msec
MR Minimum Pulse Width
–
tMR
10
–
–
μ
sec
MR Glitch Immunity
–
–
–
0.1
–
μ
sec
MR to Reset Propagation Delay
–
t
MD
–
0.5
–
μ
sec
MR Input Threshold
V
CC
V
TH(MAX)
,
MAX81_L/M
V
IH
V
IL
2.3
–
–
–
–
0.8
V
–
V
CC
MAX81_R/S/T/F
V
TH(MAX)
,
V
IH
V
IL
0.7 V
CC
–
–
–
–
0.15 V
CC
V
MR Pull–up Resistance
–
–
10
20
40
K
RESET Output Voltage High
(MAX812)
I
SOURCE
= 150
μ
A;
V
CC
V
TH(MIN)
V
OH
0.8 V
CC
–
–
V
1. Production testing done at T
A
= +25
°
C, over temperature limits guaranteed by design.
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