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ADM1232ARN-REEL7 Datasheet(PDF) 1 Page - Analog Devices

Part No. ADM1232ARN-REEL7
Description  Microprocessor Supervisory Circuit
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Maker  AD [Analog Devices]
Homepage  http://www.analog.com
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ADM1232ARN-REEL7 Datasheet(HTML) 1 Page - Analog Devices

 
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Microprocessor
Supervisory Circuit
ADM1232
Rev. C
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringementsof patentsorother
rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
©1997–2008 Analog Devices, Inc. All rights reserved.
FEATURES
Pin-compatible with MAX1232 and Dallas DS1232
Adjustable precision voltage monitor with 4.5 V and
4.75 V options
Adjustable strobe monitor with 150 ms, 600 ms, or
1.2 sec options
No external components
Specified from −40°C to +85°C
APPLICATIONS
Microprocessor systems
Portable equipment
Computers
Controllers
Intelligent instruments
Automotive systems
FUNCTIONAL BLOCK DIAGRAM
VCC
TOLERANCE
PB RESET
TD
5%/10%
TOLERANCE
SELECT
RESET
GND
DEBOUNCE
VREF
RESET
WATCHDOG
TIMER
WATCHDOG
TIME-BASE
SELECT
STROBE
ADM1232
Figure 1.
GENERAL DESCRIPTION
The ADM1232 is pin-compatible with the MAX1232, DS1232LP,
and DS1232. The Analog Devices, Inc., ADM1232 is a micro-
processor monitoring circuit that can monitor the following:
Microprocessor supply voltage
Whether a microprocessor has locked up
External interrupts
The ADM1232 is available in four packages: an 8-lead MSOP
(RM-8), an 8-lead PDIP (N-8), a 16-lead wide SOIC (RW-16),
and an 8-lead narrow SOIC (R-8).
MICROPROCESSOR
GND
TD TOLERANCE
RESET
STROBE
RESET
I/O
ADM1232
5V
5V
10kΩ
Figure 2. Typical Supply Monitoring Application


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