AME8570 - AME, Inc.

AME
µProcessor Supervisory
AME8570
n General Description
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 µP
based systems. When the power supply voltage drops
below the voltage threshold a reset is asserted immediately ( within an interval TD1 ). The reset remains asserted
after the supply voltage rises above the voltage threshold
for a time interval, TD2. 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.
n Functional Block Diagram
AME8570 Push-Pull RESET/ RESETB
VIN
R1
n Features
l Small Packages : SC-70, SOT-23, SOT-143
R2
V REF
N1
GND
AME8570 Open-Drain RESETB
VIN
R1
I1
RESET/
RESETB
Delay
R2
VREF
N1
GND
AME8570 Push-Pull RESET/ RESETB with MRB
MRB
VIN
l Tight Voltage Threshold Tolerance :
R1
± 1.50%
I1
l Wide Temperature Range : -40OC to +85OC
P1
RESET/
RESETB
Delay
l Low Quiescent Current < 3.0 µA
R2
l Manual Reset Input Option
l Green Products Meet RoHS Standards
RESET/
RESETB
Delay
The AME8570 also provide a reset manually by pulling
the MRB input to ground.
Space saving SC-70 package and micropower quiescent current ( < 3.0µA ) make this family a natural for
portable battery powered equipment.
P1
I1
V REF
N1
GND
AME8570 Open-Drain RESETB with MRB
MRB
n Applications
VIN
l Portable Electronics
R1
I1
l Power Supplies
l Computer Peripherals
l Data Acquisition Systems
l Applications using CPUs
l Consumer Electronics
Rev.C.02
RESET/
RESETB
Delay
R2
V REF
N1
GND
1
AME
µProcessor Supervisory
AME8570
n Typical Operating Circuit
VIN
R*PULL-UP
V IN
µP
PUSH BUTTON RESET / RESETB
SWITCH
MRB
GND
RESET
INPUT
GND
Note: * External pull-up resistor is required if open-drain output is used. 10KΩ is recommended.
n Pin Configuration
SOT-23/TSOT-23
Top View
SC-70-4
Top View
AME8570AEET
3
4
3
1. GND
1. GND
2. RESET/RESETB
AME8570
3. IN
AME8570AEIU
2. RESET/RESETB
AME8570
3. MRB
4. IN
1
1
2
2
* Die Attach:
Non-Conductive Epoxy
SOT-23/TSOT-23
Top View
* Die Attach:
Non-Conductive Epoxy
SOT-23/TSOT-23
Top View
3
AME8570BEET
3
AME8570CEET
1. RESET/RESETB
1. RESET/RESETB
2. GND
AME8570
1
2
2
3. IN
* Die Attach:
Non-Conductive Epoxy
2. IN
AME8570
1
2
3. GND
* Die Attach:
Conductive Epoxy
Rev. C.02
AME
µProcessor Supervisory
AME8570
n Pin Configuration
SOT-143
Top View
3
4
AME8570AE4U
1. GND
2. RESET/RESETB
AME8570
3. MRB
4. IN
1
2
* Die Attach:
Conductive Epoxy
n Pin Description
AME8570AEET/AME8570BEET/AME8570CEET
Pin Name
GND
RESET/RESETB
IN
Rev.C.02
Pin Description
Ground
This pin can be ordered as RESET or RESETB. Reset is active high. RESETB is active low.
It is also available with an open-drain or push-pull output.
Positive power supply. A reset is asserted after this voltage drops below a predetermined
level. After VIN rises above that level the reset output remains asserted until the end of the
reset timeout period.
3
AME
µProcessor Supervisory
AME8570
n Pin Description
AME8570AEIU / AME8570AE4U
Pin Name
GND
Ground
RESET/RESETB
This pin can be ordered as RESET or RESETB. Reset is active high. RESETB is active low.
It is also available with an open-drain or push-pull output.
MRB
Manual RESET. Active low. Pulling this pin low forces a reset. After a low to high
transition reset, remains asserted for exactly one reset timeout period. This pin is internally
pulled high. The pin is floating or tied to VIN , if it is unused.
IN
4
Pin Description
Positive power supply. A reset is asserted after this voltage drops below a predetermined
level. After VIN rises above that level the reset output remains asserted until the end of the
reset timeout period.
Rev. C.02
AME
µProcessor Supervisory
AME8570
n Ordering Information
AME8570 x x x x x x xx x
Special Feature
VIN Threshold Voltage (V TH)
Reset Time (TD2NOM )
Output Driver Option
Number of Pins
Package Type
Operating Ambient Temperature Range
Pin Configuration
Pin
Configuration
Operating Ambient
Temperature Range
A
E : -40O C to +85 OC
(SOT-23)
(TSOT-23)
B
(SOT-23)
(TSOT-23)
C
(SOT-23)
(TSOT-23)
1. GND
2. RESET/
RESETB
3. IN
Package
Type
E: SOT-2X
I: SC-70
4: SOT-143
Number
of
Pins
T: 3
U: 4
Output Options
A: RESETB/PP
B: RESETB/OD
C: RESET/PP
1. Reset/
ResetB
2. GND
3. IN
1. Reset/
ResetB
2. IN
3. GND
(RESET=Active High)
(RESETB=Active Low)
(PP=Push-pull out)
(OD=Open-Drain output)
A
(SC-70-4)
A
(SOT-143)
Reset Time
(TD2NOM )
A: 1.5ms
E: 150ms
F: 210ms
VIN Threshold
Voltage (V TH )
16:
18:
20:
21:
23:
26:
27:
28:
29:
30:
31:
40:
44:
45:
46:
VTH = 1.60V
VTH = 1.80V
VTH = 2.00V
VTH = 2.10V
VTH = 2.32V
VTH = 2.63V
VTH = 2.70V
VTH = 2.80V
VTH = 2.93V
VTH = 3.00V
VTH = 3.08V
VTH = 4.00V
VTH = 4.38V
VTH = 4.50V
VTH = 4.63V
Special
Feature
Y: Lead free &
Low profile
Z: Lead free
1. GND
2. RESET/
RESETB
3. MRB
4. IN
1. GND
2. RESET/
RESETB
3. MRB
4. IN
Rev.C.02
5
AME
µProcessor Supervisory
AME8570
n Ordering Information
Part Number
Marking*
Detect Voltage
Package
Operating Ambient
Temperature Range
AME8570AEETAA16Z
BMCww
1.60V
SOT-23
-40oC to +85oC
AME8570AEETAA16Y
BMCww
1.60V
TSOT-23
-40oC to +85oC
AME8570BEETAA16Z
BMDww
1.60V
SOT-23
-40oC to +85oC
AME8570BEETAA16Y
BMDww
1.60V
TSOT-23
-40oC to +85oC
AME8570CEETAA16Z
BMEww
1.60V
SOT-23
-40oC to +85oC
AME8570CEETAA16Y
BMEww
1.60V
TSOT-23
-40oC to +85oC
AME8570AEIUAA16Z
BMGw
1.60V
SC-70-4
-40oC to +85oC
AME8570AEETBE20Z
BMHww
2.00V
SOT-23
-40oC to +85oC
AME8570AEETBE20Y
BMHww
2.00V
TSOT-23
-40oC to +85oC
AME8570BEETBE20Z
BMIww
2.00V
SOT-23
-40oC to +85oC
AME8570BEETBE20Y
BMIww
2.00V
TSOT-23
-40oC to +85oC
AME8570CEETBE20Z
BMJww
2.00V
SOT-23
-40oC to +85oC
AME8570CEETBE20Y
BMJww
2.00V
TSOT-23
-40oC to +85oC
AME8570AEIUBE20Z
BMLw
2.00V
SC-70-4
-40oC to +85oC
AME8570AEETAE21Z
BMMww
2.10V
SOT-23
-40oC to +85oC
AME8570AEETAE21Y
BMMww
2.10V
TSOT-23
-40oC to +85oC
AME8570BEETAE21Z
BMNww
2.10V
SOT-23
-40oC to +85oC
AME8570BEETAE21Y
BMNww
2.10V
TSOT-23
-40oC to +85oC
AME8570CEETAE21Z
BMOww
2.10V
SOT-23
-40oC to +85oC
AME8570CEETAE21Y
BMOww
2.10V
TSOT-23
-40oC to +85oC
AME8570AEIUAE21Z
BMQw
2.10V
SC-70-4
-40oC to +85oC
Note: ww & w represents the date code and pls refer to the Date Code Rule on Package Dimension.
* A line on top of the first letter represents lead free plating such as BMCww.
Please consult AME sales office or authorized Rep./Distributor for the availability of output voltage or package type.
6
Rev. C.02
AME
µProcessor Supervisory
AME8570
n Ordering Information (Contd.)
Part Number
Marking*
Detect Voltage
Package
Operating Ambient
Temperature Range
AME8570AEETAF23Z
BJOww
2.32V
SOT-23
-40oC to +85oC
AME8570AEETAF23Y
BJOww
2.32V
TSOT-23
-40oC to +85oC
AME8570BEETAF23Z
BMRww
2.32V
SOT-23
-40oC to +85oC
AME8570BEETAF23Y
BMRww
2.32V
TSOT-23
-40oC to +85oC
AME8570CEETAF23Z
BMSww
2.32V
SOT-23
-40oC to +85oC
AME8570CEETAF23Y
BMSww
2.32V
TSOT-23
-40oC to +85oC
AME8570AEIUAF23Z
BJQw
2.32V
SC-70-4
-40oC to +85oC
AME8570AEETAE26Z
BLYww
2.63V
SOT-23
-40oC to +85oC
AME8570AEETAE26Y
BLYww
2.63V
TSOT-23
-40oC to +85oC
AME8570BEETAE26Z
BMTww
2.63V
SOT-23
-40oC to +85oC
AME8570BEETAE26Y
BMTww
2.63V
TSOT-23
-40oC to +85oC
AME8570CEETAE26Z
BMUww
2.63V
SOT-23
-40oC to +85oC
AME8570CEETAE26Y
BMUww
2.63V
TSOT-23
-40oC to +85oC
AME8570AEIUAE26Z
BMWw
2.63V
SC-70-4
-40oC to +85oC
AME8570AEETAF26Z
BJRww
2.63V
SOT-23
-40oC to +85oC
AME8570AEETAF26Y
BJRww
2.63V
TSOT-23
-40oC to +85oC
AME8570BEETAF26Z
BMXww
2.63V
SOT-23
-40oC to +85oC
AME8570BEETAF26Y
BMXww
2.63V
TSOT-23
-40oC to +85oC
AME8570CEETAF26Z
BMYww
2.63V
SOT-23
-40oC to +85oC
AME8570CEETAF26Y
BMYww
2.63V
TSOT-23
-40oC to +85oC
AME8570AEIUAF26Z
BJTw
2.63V
SC-70-4
-40oC to +85oC
Rev.C.02
7
AME
µProcessor Supervisory
AME8570
n Ordering Information (Contd.)
8
Part Number
Marking*
Detect Voltage
Package
Operating Ambient
Temperature Range
AME8570AEETAA27Z
BMZww
2.70V
SOT-23
-40oC to +85oC
AME8570AEETAA27Y
BMZww
2.70V
TSOT-23
-40oC to +85oC
AME8570BEETAA27Z
BLZww
2.70V
SOT-23
-40oC to +85oC
AME8570BEETAA27Y
BLZww
2.70V
TSOT-23
-40oC to +85oC
AME8570CEETAA27Z
BNAww
2.70V
SOT-23
-40oC to +85oC
AME8570CEETAA27Y
BNAww
2.70V
TSOT-23
-40oC to +85oC
AME8570AEIUAA27Z
BNCw
2.70V
SC-70-4
-40oC to +85oC
AME8570AEETAF27Z
BNDww
2.70V
SOT-23
-40oC to +85oC
AME8570AEETAF27Y
BNDww
2.70V
TSOT-23
-40oC to +85oC
AME8570BEETAF27Z
BNEww
2.70V
SOT-23
-40oC to +85oC
AME8570BEETAF27Y
BNEww
2.70V
TSOT-23
-40oC to +85oC
AME8570CEETAF27Z
BNFww
2.70V
SOT-23
-40oC to +85oC
AME8570CEETAF27Y
BNFww
2.70V
TSOT-23
-40oC to +85oC
AME8570AEIUAF27Z
BNHw
2.70V
SC-70-4
-40oC to +85oC
AME8570AEETBA28Z
BNIww
2.80V
SOT-23
-40oC to +85oC
AME8570AEETBA28Y
BNIww
2.80V
TSOT-23
-40oC to +85oC
AME8570BEETBA28Z
BMAww
2.80V
SOT-23
-40oC to +85oC
AME8570BEETBA28Y
BMAww
2.80V
TSOT-23
-40oC to +85oC
AME8570CEETBA28Z
BNJww
2.80V
SOT-23
-40oC to +85oC
AME8570CEETBA28Y
BNJww
2.80V
TSOT-23
-40oC to +85oC
AME8570AEIUBA28Z
BNLw
2.80V
SC-70-4
-40oC to +85oC
Rev. C.02
AME
µProcessor Supervisory
AME8570
n Ordering Information (Contd.)
Part Number
Marking*
Detect Voltage
Package
Operating Ambient
Temperature Range
AME8570AEETAE29Z
BNMww
2.93V
SOT-23
-40oC to +85oC
AME8570AEETAE29Y
BNMww
2.93V
TSOT-23
-40oC to +85oC
AME8570BEETAE29Z
BNNww
2.93V
SOT-23
-40oC to +85oC
AME8570BEETAE29Y
BNNww
2.93V
TSOT-23
-40oC to +85oC
AME8570CEETAE29Z
BNOww
2.93V
SOT-23
-40oC to +85oC
AME8570CEETAE29Y
BNOww
2.93V
TSOT-23
-40oC to +85oC
AME8570AEIUAE29Z
BNQw
2.93V
SC-70-4
-40oC to +85oC
AME8570AEETAF29Z
BJUww
2.93V
SOT-23
-40oC to +85oC
AME8570AEETAF29Y
BJUww
2.93V
TSOT-23
-40oC to +85oC
AME8570BEETAF29Z
BNRww
2.93V
SOT-23
-40oC to +85oC
AME8570BEETAF29Y
BNRww
2.93V
TSOT-23
-40oC to +85oC
AME8570CEETAF29Z
BNSww
2.93V
SOT-23
-40oC to +85oC
AME8570CEETAF29Y
BNSww
2.93V
TSOT-23
-40oC to +85oC
AME8570AEIUAF29Z
BJWw
2.93V
SC-70-4
-40oC to +85oC
AME8570AEETBF29Z
BNTww
2.93V
SOT-23
-40oC to +85oC
AME8570AEETBF29Y
BNTww
2.93V
TSOT-23
-40oC to +85oC
AME8570BEETBF29Z
BNUww
2.93V
SOT-23
-40oC to +85oC
AME8570BEETBF29Y
BNUww
2.93V
TSOT-23
-40oC to +85oC
AME8570CEETBF29Z
BMBww
2.93V
SOT-23
-40oC to +85oC
AME8570CEETBF29Y
BMBww
2.93V
TSOT-23
-40oC to +85oC
AME8570AEIUBF29Z
BKZw
2.93V
SC-70-4
-40oC to +85oC
Rev.C.02
9
AME
µProcessor Supervisory
AME8570
n Ordering Information (Contd.)
10
Part Number
Marking*
Detect Voltage
Package
Operating Ambient
Temperature Range
AME8570AEETCF29Z
BJXww
2.93V
SOT-23
-40oC to +85oC
AME8570AEETCF29Y
BJXww
2.93V
TSOT-23
-40oC to +85oC
AME8570BEETCF29Z
BNWww
2.93V
SOT-23
-40oC to +85oC
AME8570BEETCF29Y
BNWww
2.93V
TSOT-23
-40oC to +85oC
AME8570CEETCF29Z
BNXww
2.93V
SOT-23
-40oC to +85oC
AME8570CEETCF29Y
BNXww
2.93V
TSOT-23
-40oC to +85oC
AME8570AEIUCF29Z
BJZw
2.93V
SC-70-4
-40oC to +85oC
AME8570AEETAF31Z
BKAww
3.08V
SOT-23
-40oC to +85oC
AME8570AEETAF31Y
BKAww
3.08V
TSOT-23
-40oC to +85oC
AME8570BEETAF31Z
BNYww
3.08V
SOT-23
-40oC to +85oC
AME8570BEETAF31Y
BNYww
3.08V
TSOT-23
-40oC to +85oC
AME8570CEETAF31Z
BNZww
3.08V
SOT-23
-40oC to +85oC
AME8570CEETAF31Y
BNZww
3.08V
TSOT-23
-40oC to +85oC
AME8570AEIUAF31Z
BKCw
3.08V
SC-70-4
-40oC to +85oC
AME8570AEETBF31Z
BKDww
3.08V
SOT-23
-40oC to +85oC
AME8570AEETBF31Y
BKDww
3.08V
TSOT-23
-40oC to +85oC
AME8570BEETBF31Z
BOAww
3.08V
SOT-23
-40oC to +85oC
AME8570BEETBF31Y
BOAww
3.08V
TSOT-23
-40oC to +85oC
AME8570CEETBF31Z
BOBww
3.08V
SOT-23
-40oC to +85oC
AME8570CEETBF31Y
BOBww
3.08V
TSOT-23
-40oC to +85oC
AME8570AEIUBF31Z
BKFw
3.08V
SC-70-4
-40oC to +85oC
Rev. C.02
AME
µProcessor Supervisory
AME8570
n Ordering Information (Contd.)
Part Number
Marking*
Detect Voltage
Package
Operating Ambient
Temperature Range
AME8570AEETBE31Z
BOCww
3.08V
SOT-23
-40oC to +85oC
AME8570AEETBE31Y
BOCww
3.08V
TSOT-23
-40oC to +85oC
AME8570BEETBE31Z
BODww
3.08V
SOT-23
-40oC to +85oC
AME8570BEETBE31Y
BODww
3.08V
TSOT-23
-40oC to +85oC
AME8570CEETBE31Z
BOEww
3.08V
SOT-23
-40oC to +85oC
AME8570CEETBE31Y
BOEww
3.08V
TSOT-23
-40oC to +85oC
AME8570AEIUBE31Z
BOGw
3.08V
SC-70-4
-40oC to +85oC
AME8570AEETCF31Z
BOHww
3.08V
SOT-23
-40oC to +85oC
AME8570AEETCF31Y
BOHww
3.08V
TSOT-23
-40oC to +85oC
AME8570BEETCF31Z
BOIww
3.08V
SOT-23
-40oC to +85oC
AME8570BEETCF31Y
BOIww
3.08V
TSOT-23
-40oC to +85oC
AME8570CEETCF31Z
BOJww
3.08V
SOT-23
-40oC to +85oC
AME8570CEETCF31Y
BOJww
3.08V
TSOT-23
-40oC to +85oC
AME8570AEIUCF31Z
BOLw
3.08V
SC-70-4
-40oC to +85oC
AME8570AEETAF40Z
BOMww
4.00V
SOT-23
-40oC to +85oC
AME8570AEETAF40Y
BOMww
4.00V
TSOT-23
-40oC to +85oC
AME8570BEETAF40Z
BONww
4.00V
SOT-23
-40oC to +85oC
AME8570BEETAF40Y
BONww
4.00V
TSOT-23
-40oC to +85oC
AME8570CEETAF40Z
BOOww
4.00V
SOT-23
-40oC to +85oC
AME8570CEETAF40Y
BOOww
4.00V
TSOT-23
-40oC to +85oC
AME8570AEIUAF40Z
BOQw
4.00V
SC-70-4
-40oC to +85oC
Rev.C.02
11
AME
µProcessor Supervisory
AME8570
n Ordering Information (Contd.)
12
Part Number
Marking*
Detect Voltage
Package
Operating Ambient
Temperature Range
AME8570AEETAF44Z
BORww
4.38V
SOT-23
-40oC to +85oC
AME8570AEETAF44Y
BORww
4.38V
TSOT-23
-40oC to +85oC
AME8570BEETAF44Z
BOSww
4.38V
SOT-23
-40oC to +85oC
AME8570BEETAF44Y
BOSww
4.38V
TSOT-23
-40oC to +85oC
AME8570CEETAF44Z
BOTww
4.38V
SOT-23
-40oC to +85oC
AME8570CEETAF44Y
BOTww
4.38V
TSOT-23
-40oC to +85oC
AME8570AEIUAF44Z
BOVw
4.38V
SC-70-4
-40oC to +85oC
AME8570AEETBF44Z
BOWww
4.38V
SOT-23
-40oC to +85oC
AME8570AEETBF44Y
BOWww
4.38V
TSOT-23
-40oC to +85oC
AME8570BEETBF44Z
BOXww
4.38V
SOT-23
-40oC to +85oC
AME8570BEETBF44Y
BOXww
4.38V
TSOT-23
-40oC to +85oC
AME8570CEETBF44Z
BOYww
4.38V
SOT-23
-40oC to +85oC
AME8570CEETBF44Y
BOYww
4.38V
TSOT-23
-40oC to +85oC
AME8570AEIUBF44Z
BPAw
4.38V
SC-70-4
-40oC to +85oC
AME8570AEETAF46Z
BKGww
4.63V
SOT-23
-40oC to +85oC
AME8570AEETAF46Y
BKGww
4.63V
TSOT-23
-40oC to +85oC
AME8570BEETAF46Z
BPBww
4.63V
SOT-23
-40oC to +85oC
AME8570BEETAF46Y
BPBww
4.63V
TSOT-23
-40oC to +85oC
AME8570CEETAF46Z
BPCww
4.63V
SOT-23
-40oC to +85oC
AME8570CEETAF46Y
BPCww
4.63V
TSOT-23
-40oC to +85oC
AME8570AEIUAF46Z
BKIw
4.63V
SC-70-4
-40oC to +85oC
Rev. C.02
AME
µProcessor Supervisory
AME8570
n Ordering Information (Contd.)
Part Number
Marking*
Detect Voltage
Package
Operating Ambient
Temperature Range
AME8570AEETCF46Z
BKJww
4.63V
SOT-23
-40oC to +85oC
AME8570AEETCF46Y
BKJww
4.63V
TSOT-23
-40oC to +85oC
AME8570BEETCF46Z
BPDww
4.63V
SOT-23
-40oC to +85oC
AME8570BEETCF46Y
BPDww
4.63V
TSOT-23
-40oC to +85oC
AME8570CEETCF46Z
BPEww
4.63V
SOT-23
-40oC to +85oC
AME8570CEETCF46Y
BPEww
4.63V
TSOT-23
-40oC to +85oC
AME8570AEIUCF46Z
BKLw
4.63V
SC-70-4
-40oC to +85oC
AME8570BEETBF27Z
BTSww
2.70V
SOT-23
-40oC to +85oC
AME8570AEETAE18Z
BUAww
1.80V
SOT-23
-40oC to +85oC
AME8570AEIUBA27Z
BVOw
2.70V
SC-70-4
-40oC to +85oC
AME8570BEETBF30Z
CARww
3.00V
SOT-23
-40oC to +85oC
AME8570AE4UAF29Z
CBBww
2.93V
SOT-143
-40oC to +85oC
Rev.C.02
13
AME
µProcessor Supervisory
AME8570
n Absolute Maximum Ratings
Parameter
Maximum
Unit
6
V
20
mA
Supply Voltage
Input Current, VIN
Output Current, RESET, RESETB
B*
ESD Classification
Caution: Stress above the listed in absolute maximum ratings may cause permanent damage to the device.
* HBM B: 2000V ~ 3999V
n Recommended Operating conditions
Parameter
Symbol
Rating
Unit
Ambient Temperature Range
TA
- 40 to +85
Junction Temperature Range
TJ
- 40 to +125
Storage Temperature Range
TSTG
- 65 to +150
O
C
n Thermal Information
Parameter
Thermal Resistance*
(Junction to Case)
Package
Die Attach
Symbol Maximum
Conductive Epoxy
SOT-23
TSOT-23
Non-Conductive
Epoxy
81
θJC
SOT-23
TSOT-23
Internal Power Dissipation
SOT-23
TSOT-23
Non-Conductive
Epoxy
Solder Iron (10 Sec) **
C/W
o
C/W
260
θJA
280
Conductive Epoxy
Non-Conductive
Epoxy
o
140
Conductive Epoxy
Thermal Resistance
(Junction to Ambient)
Unit
400
PD
mW
400
350
o
C
* Measure θJC on center of molding compound if IC has no tab.
** MIL-STD-202G 210F
14
Rev. C.02
AME
µProcessor Supervisory
AME8570
n Electrical Specifications
TA = 25OC unless otherwise noted.
Parameter
VIN Range
Supply Current
RESET Threshold
Symbol
Test Condition
Min
VRANGE
T A = -40 o C to +85o C
1
VIN = VTH*1.10
MRB unconnected
IIN
o
RESETB Output
Voltage High
RESET Output Voltage Low
VIN to RESET Delay
RESET Timeout Period
MRB Input Threshold
MRB Pulse Width
µA
5
T A = -40 C to +85 C
VTH
-2%
VTH
+2%
VRelease - V TH
10
ISOURCE = 0.15mA,
1.8V >= VIN > 1.0V
ISOURCE = 0.5mA,
VIN > 1.8V
T D2
I SINK = 1.2mA,
V IN > VTH (MAX)
T J = -40 C to +85 C
o
o
T A = -40 C to +85 C
IL
MRB IH
60
V
mV
V
ISOURCE = 0.15mA,
1.8V >= VIN > 1.0V
VIN < VTH (MIN)
o
30
0.8VI N
0.2
o
VIN = V TH -100mV; TA = -40oC to +85oC
T D1
MRB
o
ISOURCE = 0.5mA,
VIN > 1.8V
V IN < VTH (MIN)
VOL
V
VTH
+1.5%
VOH
RESETB Output Voltage Low
5.5
VTH
-1.5%
V IN > VTH (MAX)
RESET Output
Voltage High
Units
o
VTH
VHYST
Max
3
V IN = VTH*1.10, TA=-40 C~+85 C
MRB unconnected
o
Hysteresis Range
Typ
V
µS
40
Version A
0.5
1.5
5
mS
Version E
80
150
230
mS
Version F
140
210
500
mS
VI N = VTH x 1.2
0.7
0.8VI N
V
µS
1
MRB Noise Immunity
(pulse width with no reset)
100
nS
MRB to RESET Delay
500
nS
MRB Pull Up Resistance
Rev.C.02
80
120
KΩ
15
AME
µProcessor Supervisory
AME8570
n Timing Diagram
VRelease
VT H
V IN
TD2
50%
TD1
50%
TD1
50%
RESET
TD2
50%
RESETB
n Applications Information
Supply Transients
These devices have a certain immunity to fast negative
going transients. In the following pages the graph titled
"Glitch Rejection" indicates the maximum allowable glitch
amplitude and duration to avoid triggering an unintended
reset. As shown in the graph shorter transients can have
larger amplitudes without triggering resets.
Glitch Rejection
Reset Time vs. Temperature
600
140
550
500
Reset Time (ms)
Glitch Duration (µS)
120
100
80
60
40
400
350
300
250
20
200
0
0.01
0.1
Glitch Amplitude (V)
16
450
1
150
-45 -35 -25 -15 -5
5
15
25
35
45
55
65
75 85
95 105 115
Temperature ( oC)
Rev. C.02
AME
AME8570
µProcessor Supervisory
n Detailed Description
The AME8570 are designed to interface with the reset
input of a microprocessor and to prevent code-execution
errors due to power up, power down, and other power
supply errors.
Reset Output
Each output pin in the family can be configured to be
either push-pull or open-drain. In addition each output may
be either active high or active low. Active high reset outputs are denoted as RESET. Active low reset outputs
are denoted as RESETB. The selection guide on this
data sheet shows all possible combinations of output
driver configuration.
A reset will be asserted if any of two things happen:
1) VIN drops below the threshold (V TH)
2) The MRB pin is pulled low.
The reset will remain asserted for the prescribed reset
interval after:
1) VIN rises above the threshold (V TH)
2) MRB goes high
Manual Reset Input
The AME8570 feature a manual reset feature (MRB).
A logic low on the MRB pin asserts a reset. The reset
remains asserted as long as the MRB pin remains low.
After the MRB pin transitions to a high state the reset
remains asserted for the prescribed reset interval (TD2).
The MRB pin is internally pulled up to VIN by a 100K
resistor. It is internally debounced to reject switching
transients.
The MRB pin is ESD protected by diodes connected
to VIN and GND. So the MRB pin should never be driven
higher than VIN or lower than GND.
Glitch Rejection
The AME8570 family will reject negative going transients
on the VIN line to some extent. The smaller the duration
of the transient the larger its amplitude may be without
triggering a reset. The "Glitch Rejection" chart in the
graphs section of this datasheet shows the relation between glitch amplitude and allowable glitch duration to
avoid unintended resets.
Accurate Output State at Low VIN
With VIN voltage on the order of the MOS transistor
threshold (<1.0V) the outputs of the AME8570 may become undefined. For parts with active low output
(RESETB) a resistor placed between RESETB and GND
on the order of 100K will ensure that the RESETB output
stays low when VIN is lower than the threshold voltage of
the part. In a like manner a resistor on the order of 100K
when placed between RESET and VIN will ensure parts
with active high output (RESET) will remain high when
VIN is lower than the threshold voltage of the part.
Rev.C.02
17
AME
µProcessor Supervisory
AME8570
n Characterization Curve
Reset VTH vs. Temperature
IIN vs. Temperature
2.70
2.69
3.0
2.68
AME8570AEETAF26
Reset Vth (V)
Supply Current @ 5V (µA)
3.5
2.5
2.0
1.5
2.66
2.65
2.64
2.63
2.62
2.61
1.0
-45 -35
-25 -15 -5
5
15
25
35
45
55
65
75
85
2.60
-45 -35 -25 -15 -5
95 105 115
Temperature (oC)
Threshold Hysteresis vs. Temperature
0.030
2.8
2.4
0.025
85oC
1.6
Hysteresis (V)
2.0
0oC
1.2
-40oC
0.8
0.020
0.015
0.010
0.005
0.4
0.0
0.0
5 15 25 35 45 55 65 75 85 95 105 115
Temperature (oC)
IIN vs. VIN
IIN (µA)
AME8570AEETAF26
2.67
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
VIN (V)
0.000
-40
-20
0
20
40
60
80
Temperature (oC)
Reset VOL vs. Temperature
0.034
Reset VOL @ 0.8mA (V)
0.032
0.030
0.028
AME8570AEETAF26
0.026
0.024
0.022
0.020
0.018
0.016
0.014
0.012
0.010
-45 -35 -25 -15 -5
5 15 25 35 45 55 65 75 85 95 105115
Temperature (oC)
18
Rev. C.02
AME
µProcessor Supervisory
AME8570
n Date Code Rule
For SOT-23 / SOT-143 Package
Marking
Date Code
Year
A
A
A
W
W
xxx0
A
A
A
W
W
xxx1
A
A
A
W
W
xxx2
A
A
A
W
W
xxx3
A
A
A
W
W
xxx4
A
A
A
W
W
xxx5
A
A
A
W
W
xxx6
A
A
A
W
W
xxx7
A
A
A
W
W
xxx8
A
A
A
W
W
xxx9
Date Code
Year
For SC-70 Package Only
Marking
w: Work Week Code
A
A
A
W
xxx0
A:
01&02
K:
21&22
U:
41&42
A
A
A
W
xxx1
B:
03&04
L:
23&24
V:
43&44
A
A
A
W
xxx2
C:
05&06
M:
25&26 W:
45&46
A
A
A
W
xxx3
D:
07&08
N:
27&28
X:
47&48
A
A
A
W
xxx4
E:
09&10
O:
29&30
Y:
49&50
A
A
A
W
xxx5
F:
11&12
P:
31&32
Z:
51&52
A
A
A
W
xxx6
G:
13&14
Q:
33&34
A
A
A
W
xxx7
H:
15&16
R:
35&36
A
A
A
W
xxx8
I:
17&18
S:
37&38
A
A
A
W
xxx9
J:
19&20
T:
39&40
Rev.C.02
19
AME
µProcessor Supervisory
AME8570
n Tape and Reel Dimension
SOT-23
P
W
AME
AME
PIN 1
Carrier Tape, Number of Components Per Reel and Reel Size
Package
Carrier Width (W)
Pitch (P)
Part Per Full Reel
Reel Size
SOT-23
8.0±0.1 mm
4.0±0.1 mm
3000pcs
180±1 mm
TSOT-23
P
W
AME
AME
PIN 1
Carrier Tape, Number of Components Per Reel and Reel Size
20
Package
Carrier Width (W)
Pitch (P)
Part Per Full Reel
Reel Size
TSOT-23
8.0±0.1 mm
4.0±0.1 mm
3000pcs
180±1 mm
Rev. C.02
AME
µProcessor Supervisory
AME8570
n Tape and Reel Dimension
SC-70-4
P
W
AME
AME
PIN 1
Carrier Tape, Number of Components Per Reel and Reel Size
Package
Carrier Width (W)
Pitch (P)
Part Per Full Reel
Reel Size
SC-70-4
8.0±0.1 mm
4.0±0.1 mm
3000pcs
180±1 mm
SOT-143
P
W
AME
AME
PIN 1
Carrier Tape, Number of Components Per Reel and Reel Size
Rev.C.02
Package
Carrier Width (W)
Pitch (P)
Part Per Full Reel
Reel Size
SOT-143
8.0±0.1 mm
4.0±0.1 mm
3000pcs
180±1 mm
21
AME
µProcessor Supervisory
AME8570
n Package Dimension
SOT-23
Top View
Side View
SYMBOLS
D
E
H
θ1
L
PIN 1
MAX
MIN
MAX
A
1.00
1.40
0.0394
0.0551
A1
0.00
0.15
0.0000
0.0059
b
0.35
0.50
0.0138
0.0197
D
2.70
3.10
0.1063
0.1220
E
1.40
1.80
0.0551
0.0709
e
1.90 BSC
2.40
θ1
0.0748 BSC
3.00
0.35BSC
L
o
0
0.09449 0.11811
0.0138BSC
o
10
o
0
o
10
A
Front View
INCHES
MIN
H
e
MILLIMETERS
A1
b
TSOT-23
Top View
Side View
D
θ1
E
H
SYMBOLS
L
PIN 1
MAX
MIN
MAX
A+A1
0.80
1.30
0.0315
0.0512
b
0.35
0.50
0.0138
0.0197
D
2.70
3.10
0.1063
0.1220
E
1.20
1.80
0.0472
0.0709
1.90 BSC
e
2.40
0.0748 BSC
3.00
0.35BSC
L
θ1
0
o
0.0945
0.1181
0.0138BSC
o
10
0
o
10
o
b
22
A1
A
Front View
INCHES
MIN
H
e
MILLIMETERS
Rev. C.02
AME
µProcessor Supervisory
AME8570
n Package Dimension (Contd.)
SC-70-4
Top View
Side View
D
e1
θ
SYMBOLS
E
E1
PIN 1
L1
d
b
0.20
c
b1
Front View
MAX
MIN
MAX
A
0.900
1.100
0.035
0.043
A1
0.000
0.100
0.000
0.004
A2
0.900
1.000
0.035
0.039
b
0.250
0.400
0.010
0.016
b1
0.350
0.500
0.014
0.020
c
0.080
0.150
0.003
0.006
d
A
A2
0.002 TYP
2.000
2.200
0.079
0.087
E
1.150
1.350
0.045
0.053
E1
2.150
2.450
0.085
0.096
e1
L
A1
0.050 TYP
D
e
Rev.C.02
INCHES
MIN
e
L
MILLIMETERS
L1
θ
0.650 TYP
1.200
0.026TYP
1.400
0.525 REF
0.260
0
o
0.460
8
o
0.047
0.055
0.021 REF
0.010
o
0
0.018
8
o
23
AME
µProcessor Supervisory
AME8570
n Package Dimension (Contd.)
SOT-143
e1
θ
e
L
E
E1
d
L1
c
b1 1 place
0.250
b x3 place
PIN 1
D
TOP VIEW
SIDE VIEW
SYMBOLS
A
A2
A1
FRONT VIEW
MILLIMETERS
MIN
MAX
MIN
MAX
A
0.900
1.150
0.035
0.045
A1
0.000
0.100
0.000
0.004
A2
0.900
1.050
0.035
0.041
b
0.300
0.500
0.012
0.020
b1
0.750
0.900
0.030
0.035
c
0.080
0.150
0.003
0.006
D
2.800
3.000
0.110
0.118
0.200 TYP
d
0.008 TYP
E
1.200
1.400
0.047
0.055
E1
2.250
2.550
0.089
0.100
0.950 TYP
e
e1
1.800
L1
θ
0.037 TYP
2.000
0.071
0.550 REF.
L
24
INCHES
0.300
0
o
0.022 REF
0.500
8
0.079
o
0.012
0
o
0.020
8
o
Rev. C.02
www.ame.com.tw
E-Mail: sales@ame.com.tw
Life Support Policy:
These products of AME, Inc. are not authorized for use as critical components in life-support
devices or systems, without the express written approval of the president
of AME, Inc.
AME, Inc. reserves the right to make changes in the circuitry and specifications of its devices and
advises its customers to obtain the latest version of relevant information.
 AME, Inc. , March 2012
Document: 1221-DS8570-C.02
Corporate Headquarter
AME, Inc.
8F, 12, WenHu St., Nei Hu
Taipei, Taiwan. 114
Tel: 886 2 2627-8687
Fax: 886 2 2659-2989