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ADM6316 View Datasheet(PDF) - Analog Devices

Part NameDescriptionManufacturer
ADM6316 Supervisory Circuits with Watchdog and Manual Reset in 5-Lead SOT-23 ADI
Analog Devices ADI
ADM6316 Datasheet PDF : 14 Pages
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Data Sheet
Supervisory Circuits with Watchdog
and Manual Reset in 5-Lead SOT-23
ADM6316/ADM6317/ADM6318/ADM6319/ADM6320/ADM6321/ADM6322
FEATURES
26 reset threshold options
2.5 V to 5 V in 100 mV increments
4 reset timeout options
1 ms, 20 ms, 140 ms, and 1120 ms (minimum)
4 watchdog timeout options
6.3 ms, 102 ms, 1600 ms, and 25.6 sec (typical)
Manual reset input
Reset output stages
Push-pull active low
Open-drain active low
Push-pull active high
Low power consumption: 5 μA
Guaranteed reset output valid to VCC = 1 V
Power supply glitch immunity
Specified over industrial temperature range
5-lead SOT-23 package
APPLICATIONS
Microprocessor systems
Computers
Controllers
Intelligent instruments
Portable equipment
GENERAL DESCRIPTION
The ADM6316/ADM6317/ADM6318/ADM6319/ADM6320/
ADM6321/ADM6322 are supervisory circuits that monitor
power supply voltage levels and code execution integrity in
microprocessor-based systems. As well as providing power-on
reset signals, an on-chip watchdog timer can reset the micro-
processor if it fails to strobe within a preset timeout period. A
reset signal can also be asserted by an external push button
through a manual reset input. The seven devices feature different
combinations of watchdog input, manual reset input, and output
stage configuration, as shown in Table 1.
Table 1. Selection Table
Part No.
ADM6316
ADM6317
ADM6318
ADM6319
ADM6320
ADM6321
ADM6322
Watchdog
Yes
Yes
Yes
No
Yes
Yes
No
Manual Reset
Yes
Yes
No
Yes
Yes
No
Yes
Rev. H
Document Feedback
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.
FUNCTIONAL BLOCK DIAGRAMS
ADM6316
VCC
VREF
RESET
GENERATOR
VCC
RESET
MR
DEBOUNCE
WATCHDOG
DETECTOR
GND
ADM6320
WDI
Figure 1.
VCC
VREF
MR
DEBOUNCE
RESET
GENERATOR
WATCHDOG
DETECTOR
RESET
GND
WDI
Figure 2.
Each device is available in a choice of 26 reset threshold options
ranging from 2.5 V to 5 V in 100 mV increments. There are also
four reset timeout options of 1 ms, 20 ms, 140 ms, and 1120 ms
(minimum) and four watchdog timeout options of 6.3 ms, 102 ms,
1600 ms, and 25.6 sec (typical).
The ADM6316/ADM6317/ADM6318/ADM6319/ADM6320/
ADM6321/ADM6322 are available in 5-lead SOT-23 packages
and typically consume only 3 μA, making them suitable for use
in low power portable applications.
RESET
Push-pull
No
Push-pull
Push-pull
Open-drain
Open-drain
Open-drain
Output Stage
RESET
No
Push-pull
Push-pull
Push-pull
No
Push-pull
Push-pull
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 ©2004–2015 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com
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