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參數(shù)資料
| 型號： | AME8570AEETAF46Z |
| 廠商： | AME, Inc. |
| 英文描述： | mProcessor Supervisory |
| 中文描述： | mProcessor監(jiān)督 |
| 文件頁數(shù)： | 1/17頁 |
| 文件大小： | 164K |
| 代理商： | AME8570AEETAF46Z |
AME, Inc.
1 Rev. A.01
AME8570
m
Processor Supervisory
n
Functional Block Diagram
The AME8570 family allows the user to customize the
CPU reset function without any external components.
The user has serveral choice of reset voltage thresholds,
reset time intervals, and output driver configurations, all
of which are preset at the factory.
These circuits monitor the power supply voltage of
μ
P
based systems. When the power supply voltage drops
below the voltage threshold a reset is asserted immedi-
ately ( within an interval T
). The reset remains asserted
after the supply voltage rises above the voltage threshold
for a time interval, T
. The reset output may be either
active high ( RESET ) or active low ( RESETB ). The
reset output may be configured as either push/pull or
open drain. The state of the reset output is guaranteed
to be correct only when supply voltage is greater than
1V.
The AME8570 also provide a reset manually by pulling
the MRB input to ground.
Space saving SC-70 package and micropower quies-
cent current ( < 5.0
μ
A ) make this family a natural for
portable battery powered equipment.
n
Features
l
Portable Electronics
l
Power Supplies
l
Computer Peripherals
l
Data Acquisition Systems
l
Applications using CPUs
l
Consumer Electronics
n
General Description
n
Applications
l
Small Packages : SC-70, SOT-23
l
Tight Voltage Threshold Tolerance :
± 1.50%
l
Wide Temperature Range : -40
O
C to 85
O
C
l
Low Quiescent Current < 5.0
μ
A
l
Manual Reset Input Option
l
All AME's Lead Free Products Meet RoHS
Standards
Delay
IN
GND
R1
R2
I1
V
REF
N1
RESET/
RESETB
MRB
AME8570 Open-Drain RESET/ RESETB with MRB
Delay
IN
GND
R1
R2
I1
V
REF
P1
N1
RESET/
RESETB
AME8570 Push-Pull RESET/ RESETB
RESET/
RESETB
Delay
IN
GND
R1
R2
I1
V
REF
N1
AME8570 Open-Drain RESET/RESETB
Delay
IN
GND
R1
R2
I1
V
REF
P1
N1
RESET/
RESETB
MRB
AME8570 Push-Pull RESET/ RESETB with MRB
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