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參數(shù)資料
| 型號： | ASM708RCUA |
| 廠商： | ALLIANCE SEMICONDUCTOR CORP |
| 元件分類： | 電源管理 |
| 英文描述： | 3/3.3/4.0 V uP Supervisor Circuits |
| 中文描述： | 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
| 封裝： | MICRO, SOP-8 |
| 文件頁數(shù)： | 7/16頁 |
| 文件大?。?/td> | 274K |
| 代理商： | ASM708RCUA |
ASM706 P/ R/ S/ T/ J
ASM708 R/ S/ T/ J
7 of 16
Notice: The information in this document is subject to change without notice
3/3.3/4.0 V μP Supervisor Circuits
October 2003
rev 1.0
Monitoring Voltages Other Than V
CC
The ASM706/708 can monitor voltages other than V
CC
using
the Power Fail circuitry. If a resistive divider is connected from
the voltage to be monitored to the PFI input, the PFO will go
LOW if the voltage at PFI goes below 1.25V reference. Should
hysteresis be desired, connect a resistor (equal to
approximately 10 times the sum of the two resistors in the
divider) between the PFI and PFO pins. A capacitor between
PFI and GND will reduce circuit sensitivity to input high
frequency noise. If it is desired to assert a reset in addition to
the PFO flag, this may be achieved by connecting the PFO
output to MR.
Absolute Maximum Ratings
Parameter
Min
Max
Unit
Pin Terminal Voltage with Respect to Ground
V
CC
-0.3
6.0
V
All other inputs
-0.3
V
CC
+ 0.3
V
Input Current at V
CC
and GND
20
mA
Output Current: All outputs
20
mA
Rate of Rise at V
CC
100
V/μs
Plastic DIP Power Dissipation
(Derate 9mW/°C above 70°C)
700
mV
SO Power Dissipation
(Derate 5.9mW/°C above 70°C)
470
mW‘
MicroSO POwer Disspation
(Derate 4.1mW/°C above 70°C)
330
mW
Operating Temperature Range
ASM706xE, ASM708xE
-40
+85
°C
ASM706xC, ASM708xC
0
70
°C
Storage Temperature Range
-65
160
°C
Lead Temperature Soldering (10sec)
300
°C
Note: These are stress ratings only and functional operation is noy implied. Exposure to absolute maximum ratings for pro-
longed time periods may affect device reliability.
V
CC
PFI
MR
PFO
V
IN
R
1
R
2
ASM70X
RESET
GND
+5V
To
μP
Figure 4: Monitoring +5V and an additional supply V
IN
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| ASM708SCSA | 制造商:ALSC 制造商全稱:Alliance Semiconductor Corporation 功能描述:3/3.3/4.0 V uP Supervisor Circuits |
| ASM708SCUA | 制造商:ALSC 制造商全稱:Alliance Semiconductor Corporation 功能描述:3/3.3/4.0 V uP Supervisor Circuits |
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