AME8501 AME [Analog Microelectronics], AME8501 Datasheet

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AME8501

Manufacturer Part Number
AME8501
Description
Micropower uP Reset Family
Manufacturer
AME [Analog Microelectronics]
Datasheet
1.AME8501.pdf (14 pages)
AME8500 / 8501
n General Description
CPU reset function without any external components.
The user has a large choice of reset voltage thresholds,
reset time intervals, and output driver configurations, all
of which are preset at the factory. Each wafer is trimmed
to the customer's specifications.
based systems. When the power supply voltage drops
below the voltage threshold a reset is asserted immedi-
ately (within an interval T
after the supply voltage rises above the voltage threshold
for a time interval, T
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 for supply voltages greater than 1V.
an overtemperature shutdown function. When the ambi-
ent temperature exceeds 80
remains asserted until the temperature falls below 60
escent current (<3.0 A) make this family a natural for
portable battery powered equipment.
n Features
n Applications
The AME8500 family allows the user to customize the
These circuits monitor the power supply voltage of P
The AME8501 includes all the above functionality plus
Space saving SOT23 packages and micropower qui-
l Small packages: SOT-23, SOT-89
l 11 voltage threshold options
l Tight voltage threshold tolerance --- 1.50%
l 5 reset interval options
l 4 output configuration options
l Wide temperature range -------- -40
l Low temperature coefficient --- 100ppm/
l Low quiescent current < 3.0 A
l Thermal shutdown option (AME8501)
l Portable electronics
l Power supplies
l Computer peripherals
l Data acquisition systems
l Applications using CPUs
l Consumer electronics
AME, Inc.
D2
. The reset output may be either
D1
). The reset remains asserted
o
C a reset is asserted and
o
C to 85
o
o
C
C.
(max)
o
C
n Block Diagram
n Typical Operating Circuit
GND
GND
V
V
Note: * External pull-up resistor is required if open-
drain output is used. 10 k is recommended.
DD
DD
R1
R2
R1
R2
AME8500 with Push-Pull RESET
AME8500 with Push-Pull RESET
AME8500
RESET / RESET
I1
V
I1
V
REF
REF
2
3
GND
V
CC
Processor Supervisory
Delay
Delay
*
RESET
Processor
Input
GND
V
CC
N1
P1
N1
P1
RESET
RESET
1

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AME8501 Summary of contents

Page 1

... The reset output may be configured as either push/pull or open drain. The state of the reset output is guaranteed to be correct for supply voltages greater than 1V. The AME8501 includes all the above functionality plus an overtemperature shutdown function. When the ambi- o ent temperature exceeds 80 ...

Page 2

... DD R1 RESET R2 N1 GND AME8500AEET AME8501AEET 1. GND 2. Reset/ResetB AME8500CEET AME8501CEET 1. Reset/ResetB GND Processor Supervisory I1 Delay V N1 REF SOT-23 Top View AME8500BEET 3 AME8501BEET 1. Reset/ResetB AME8500 2. GND SOT-23-L Top View AME8500AEET 3 AME8501AEET 1. GND AME8500 2. Reset/ResetB RESET ...

Page 3

... Processor Supervisory SOT-23-L Top View AME8500CEET 3 AME8501CEET 1. Reset/ResetB AME8500 GND 1 2 SOT-89 Top View AME8500BEFT AME8501BEFT AME8500 1. Reset/ResetB GND SOT-25 Top View AME8500BEEV 5 4 AME8501BEEV 1. Reset/ResetB AME8500 2 ...

Page 4

... AME, Inc. AME8500 / 8501 n Ordering Information AME8500 AME8501 Operating Pin Temperature Configuration Range GND E: - Reset/ (SOT-23) ResetB 3. VDD B 1. Reset/ ResetB (SOT-23) 2. GND 3. VDD C 1. Reset/ ResetB (SOT-23) 2 ...

Page 5

AME, Inc. AME8500 / 8501 n Ordering Information Part Number Marking AME8500AEETAA21 ASVww AME8500AEETAD20 ALXww AME8500AEETAE20 AUAww AME8500AEETAE21 AVGww AME8500AEETAE26 ASJww AME8500AEETAE26L ASJww AME8500AEETAE29 ALYww AME8500AEETAE31 AUBww AME8500AEETAE46 ATSww AME8500AEETAF15 ATDww AME8500AEETAF16 ATEww AME8500AEETAF21 ASKww AME8500AEETAF23 ATTww AME8500AEETAF26 AMPww AME8500AEETAF27 ...

Page 6

AME, Inc. AME8500 / 8501 n Ordering Information (contd.) Part Number Marking AME8500AEETCF46 ARJww AME8500AEETDF46 ARIww A8500A AME8500AEFTAA21 AA21ww A8500A AME8500AEFTAF27 AF27ww A8500A AME8500AEFTCA21 CA21ww A8500A AME8500AEFTDA21 DA21ww AME8500BEETAA21 ARTww AME8500BEETAA27 ARMww AME8500BEETAA28 ASRww AME8500BEETAA29 ARZww AME8500BEETAF27 AUCww AME8500BEETAF29 AUVww ...

Page 7

AME, Inc. AME8500 / 8501 n Ordering Information (contd.) Part Number Marking AME8500BEETBA42 ASIww AME8500BEETCA21 ASXww AME8500BEEVAK27 AUFww A8500B AME8500BEFTAA21 AA21ww A8500B AME8500BEFTAA27 AA27ww A8500B AME8500BEFTAF27 AF27ww A8500B AME8500BEFTAF40 AF40ww A8500B AME8500BEFTBA23 BA23ww AME8500CEETAA21 ASYww AME8500CEETAE26 ASHww AME8500CEETAE42 AUZww AME8500CEETAF29 ...

Page 8

AME, Inc. AME8500 / 8501 n Absolute Maximum Ratings Parameter Supply Voltage ESD Classification Input Current Output Current, RESET, ResetB Rate of Rise Caution: Stress above the listed absolute maximum rating may cause permanent damage to ...

Page 9

... SOURCE 1.8V>=V >1. =0.5mA, SOURCE V >1. < (MIN) I =0.15mA, SOURCE 1.8V>=V >1. 100mV, TA= - Version A Version D o Version E TA= - Version F Version K AME8501 only AME8501 only Processor Supervisory Min Typ Max 1 5.5 1 5.5 3.0 5 THNOM V - 1.5% THNOM 1. THNOM V - 2.0% THNOM 2. 0.5 0. 200 0.5 1 ...

Page 10

AME, Inc. AME8500 / 8501 n Timing Diagram RESET 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 ...

Page 11

AME, Inc. AME8500 / 8501 I vs. Temperature DD 2.35 2.30 2.25 AME8500AEETAF26 2.20 2.15 2.10 - Temperature ( 0.8 0 ...

Page 12

AME, Inc. AME8500 / 8501 n Package Dimension SOT-23 Top View D e Front View b SOT-23-L Top View D e Front View b 12 Side View SYMBOLS £ ...

Page 13

AME, Inc. AME8500 / 8501 n Package Dimension SOT-89 Top View Front View MATTE FINISH POLISH SOT-25 Top View Front View b Side View SYMBOLS POLISH C A Side View SYMBOLS £ c ...

Page 14

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 AME, Inc. reserves the right to make changes in the circuitry and specifications of ...

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