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ADM1232ARWZ 数据手册 - ADI(亚德诺)
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ADI(亚德诺)
分类:
电源监控芯片
封装:
SOIC-16
描述:
ANALOG DEVICES ADM1232ARWZ 监控器电路, 高电平有效, 低电平有效复位, 4.5V-5.5V输入, WSOIC-16
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ADM1232ARWZ数据手册
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Microprocessor
Supervisory Circuit
ADM1232
Rev. C
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
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
V
CC
T
OLERANCE
PB RESET
TD
5%/10%
TOLERANCE
SELECT
RESET
GENERATOR
RESET
GND
DEBOUNCE
VREF
RESET
WATCHDOG
TIMER
WATCHDOG
TIME-BASE
SELECT
STROBE
7522-001
ADM1232
0
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
5
V
5
V
10kΩ
07522-002
Figure 2. Typical Supply Monitoring Application
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