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APR3021-42B Datasheet(PDF) 1 Page - Anpec Electronics Coropration

Part # APR3021-42B
Description  MicroPower Microprocessor Reset Circuit
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Manufacturer  ANPEC [Anpec Electronics Coropration]
Direct Link  http://www.anpec.com.tw
Logo ANPEC - Anpec Electronics Coropration

APR3021-42B Datasheet(HTML) 1 Page - Anpec Electronics Coropration

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Copyright
 ANPEC Electronics Corp.
Rev. A.2 - Oct., 2003
APR3021/2/3
www.anpec.com.tw
1
ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and advise
customers to obtain the latest version of relevant information to verify before placing orders.
MicroPower Microprocessor Reset Circuit
Features
General Description
Applications
Computers
Cell Phones
Portable Electronics
µP Power Supply Monitoring
The APR3021/2/3 are designed to monitor voltage
supplies in
µP and digital systems. The quiescent
current is extremely low, typically 1.5 µA, making it
ideal for portable battery operated equipment. The
APR3021/2/3 operate by monitoring the system
power supply voltage. When the input voltage drops
below a fixed threshold, the device asserts a reset
signal for a fixed time period after Vcc rises above
the fixed threshold. The APR3021/2/3 series is avail-
able with three output stage versions : APR3021
push-pull active low output, APR3022 push-pull ac-
tive high output and APR3023 open drain active low
output. They are also designed to reject fast line tran-
sient glitches on Vcc. The APR3021/2/3 are come in
a miniature SOT-23, SOT-23-5, SOT-89 packages.
Pin Configuration
SOT-23 (Top View)
Re s e t
12
3
V CC
GN D
Re s e t
(3021/3 )
(3022)
SOT-23-5 (Top View)
SOT-89 (Top View)
VCC
GND
NC
NC
12
3
4
5
Reset
Reset
(3021/3)
(3022)
GND
2
13
Reset
Reset
(3021/3)
(3022)
V
CC
1.2V to 5.5V Input Voltage Range
Low Quiescent Current : less Than 1.5 µA
High accuracy detection threshold : ±1.5%
Fixed trimmed reset thresholds for 1.5V, 1.75V,
2.32V, 2.63V, 2.93V, 3.08V, 3.9V, 4.38V.
Reset Timeout Period 250ms
Available output configurations
- Open-drain output
- CMOS active high output
- CMOS active low output
SOT-23 , SOT-23-5 and SOT-89 packages
No external components


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