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PDF AME8503 Data sheet ( Hoja de datos )
| Número de pieza | AME8503 | |
| Descripción | UProcessor Supervisory | |
| Fabricantes | Analog Microelectronics | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de AME8503 (archivo pdf) en la parte inferior de esta página. Total 17 Páginas | ||
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AME
AME8503
n General Description
The AME8503 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 immedi-
ately (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 open drain. The state of the
reset output is guaranteed to be correct only when sup-
ply voltages is greater than 1V.
The AME8503 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.
µProcessor Supervisory
n Application
l Portable Electronics
l Power Supplies
l Computer Peripherals
l Data Acquisition Systems
l Applicatiions using CPUs
l Consumer Electronics
n Typical Application
VIN
PUSH BUTTON RESET / RESETB
SWITCH
MRB
GND
R* P ULL-UP
VIN
µP
RESET
INPUT
GND
n Features
n Functional Block Diagram
l Internally Fixed Threshold 1.2V to 4.5V in 0.1V
Step
l High Accuracy ±1.5%
l Low Supply Current 3µA
l No External Components Required
l Quick Reset within 20µs
l Built-in Recovery Delay Include 0ms, 55ms,
220ms, 450ms
l Low Functional Supply Voltage 0.9V
l N-Channel Open-Drain Output
l Small SOT-143, SC-70-4, SOT-25 and TSOT-
25A Package
l RoHS Compliant and Halogen Free
VIN
GND
MRB
R1 I1
I2
R2 VREF
Delay
N1
RESET/
RESETB
Rev. A.01
1
1 page  
AME
AME8503
n Absolute Maximum Ratings
Parameter
Supply Voltage
Input Current, VIN
Output Current, RESET, RESETB
ESD Classification
HBM
MM
µProcessor Supervisory
Maximum
6
20
20
2
200
Unit
V
mA
mA
kV
V
n Recommended Operating Conditions
Parameter
Junction Temperature Range
Ambient Temperature Range
Storage Temperature Range
Symbol
TJ
TA
TSTG
Rating
-40 to +125
-40 to +85
-65 to +150
Unit
oC
Rev. A.01
5
5 Page 
AME
AME8503
n Tape and Reel Dimension
SOT-143
P0
µProcessor Supervisory
PIN 1
AME
AME
W
P
Carrier Tape, Number of Components Per Reel and Reel Size
Package
SOT-143
Carrier Width (W) Pitch (P)
Pitch (P0) Part Per Full Reel
8.0±0.1 mm
4.0±0.1 mm 4.0±0.1 mm
3000pcs
Reel Size
180±1 mm
SC-70-4
P0
PIN 1
AME
AME
W
P
Carrier Tape, Number of Components Per Reel and Reel Size
Package
SC-70-4
Carrier Width (W) Pitch (P)
Pitch (P0) Part Per Full Reel
8.0±0.1 mm
4.0±0.1 mm 4.0±0.1 mm
3000pcs
Reel Size
180±1 mm
Rev. A.01
11
11 Page | ||
| Páginas | Total 17 Páginas | |
| PDF Descargar | [ Datasheet AME8503.PDF ] | |
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