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參數資料
| 型號： | MAX817 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Dual 4-Input Positive-NAND Gates 20-LCCC -55 to 125 |
| 中文描述： | +5V微處理器監(jiān)控電路 |
| 文件頁數： | 3/16頁 |
| 文件大小： | 114K |
| 代理商： | MAX817 |
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= +4.75V to +5.5V for MAX81_L, V
CC
= +4.5V to +5.5V for MAX81_M, V
BATT
= 2.8V, T
A
= T
MIN
to T
MAX
, unless otherwise
noted. Typical values are at T
A
= +25°C.)
M
+5V Mic roproc essor S upervisory Circ uits
_______________________________________________________________________________________
3
V
PFO
= 0V
V
PFI
> 1.30V, I
SOURCE
= 40μA, V
CC
> 4.5V
MAX81_M
V
PFI
< 1.20V, I
SINK
= 3.2mA, V
CC
> 4.50V
MAX81_L
WDI = GND, time average
From V
RST
, V
CC
falling at 10V/ms
WDI = V
CC
, time average
V
CC
= 5V
MAX81_ _C, V
CC
= 1V, V
CC
falling,
V
BATT
= 0V, I
SINK
= 50μA
V
CC
> V
RST(MAX),
I
SOURCE
= 800μA
V
CC
< V
RST(MIN),
I
SINK
= 3.2mA
V
IL
= 0.4V, V
IH
= 0.8V
CC
CONDITIONS
μA
250
500
PFO
Short-Circuit Current
MANUAL RESET INPUT (MAX819 only)
V
CC
- 1.5
V
OH
PFO
Output Voltage
V
0.4
V
OL
nA
-25
0.01
25
I
PFI
PFI Input Current
mV
4
PFI Input Hysteresis
V
1.20
1.25
1.30
V
PFT
PFI Input Threshold
μA
-20
-15
WDI Input Current (Note 5)
120
160
V
3.5
V
IH
WDI Input Threshold (Note 4)
0.8
V
IL
ns
50
t
WDI
WDI Pulse Width
V
4.25
4.40
25
200
4.50
V
RST
Reset Threshold
4.50
4.65
4.75
sec
1.00
1.60
2.25
t
WD
Watchdog Timeout Period
μs
100
V
CC
to
RESET
Delay
0.3
mV
ms
Reset Threshold Hysteresis
Reset Timeout Period
140
280
t
RP
V
OH
V
CC
- 1.5
0.4
V
OL
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
MAX81_ _E, V
CC
= 1.2V, V
CC
falling,
V
BATT
= 0V, I
SINK
= 100μA
V
0.3
RESET
Output Voltage
0.8
V
2.0
V
IL
V
IH
MR
Input Threshold
μs
1
MR
Pulse Width
ns
100
MR
Pulse that Would Not Cause
a Reset
ns
k
120
63
MR
to Reset Delay
MR
Pull-Up Resistance
45
85
RESET AND WATCHDOG TIMER
POWER-FAIL COMPARATOR (MAX817/MAX819 only)
相關PDF資料 |
PDF描述 |
|---|---|
| MAX817L | Dual 4-Input Positive-NAND Gates 14-CDIP -55 to 125 |
| MAX817M | Dual 4-Input Positive-NAND Gates 14-CFP -55 to 125 |
| MAX817MESA | Dual 4-Input Positive-NAND Gates 14-CDIP |
| MAX818L | Dual 4-Input Positive-NAND Gates 14-CFP |
| MAX818LCPA | +5V Microprocessor Supervisory Circuits |
相關代理商/技術參數 |
參數描述 |
|---|---|
| MAX817_CPA | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:+5V Microprocessor Supervisory Circuits |
| MAX817_CSA | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:+5V Microprocessor Supervisory Circuits |
| MAX817_CUA | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:+5V Microprocessor Supervisory Circuits |
| MAX817_EPA | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:+5V Microprocessor Supervisory Circuits |
| MAX817_ESA | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:+5V Microprocessor Supervisory Circuits |
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