ADM6321

PRODUCTION

ADM6321

Supervisory Circuit with Watchdog, Manual Reset, and Active-High/Push-Pull Active-Low/Open-Drain

PRODUCTION

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Part Models 5

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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 V_CC = 1 V
Power supply glitch immunity
Specified over industrial temperature range
5-lead SOT-23 package

Additional Details

The ADM6316 / 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 microprocessor 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 of the data sheet.

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). Not all device options are released for sale as standard models. See the Ordering Guide in the data sheet for details.

The ADM6316/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.

APPLICATIONS

Microprocessor systems
Computers and controllers
Intelligent instruments
Portable equipment

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Support

Analog Devices Support Portal is a one-stop shop to answer all your ADI questions.

Visit the ADI Support Page

Ask the ADI community for help.

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FAQs

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Part Models 5

1ku List Price Starting From $0.73

Technical Documents 1

ADM6316/ADM6318/ADM6319/ADM6320/ADM6321/ADM6322: Supervisory Circuits with Watchdog and Manual Reset in 5-Lead SOT-23 Data Sheet (Rev.K) 07/24/2018

Reference Materials 2

Supervisory Devices Complementary Parts Guide for Altera FPGAs 02/26/2009

Supervisory Devices Complementary Parts Guide for Xilinx FPGAs 02/26/2009

Design Resources 5

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
ADM6321AY30ARJZ-R7	5-Lead SOT-23	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
ADM6321AY31ARJZ-R7	5-Lead SOT-23	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
ADM6321AY43ARJZ-R7	5-Lead SOT-23	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
ADM6321BZ25ARJZ-R7	5-Lead SOT-23	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
ADM6321CY46ARJZ-R7	5-Lead SOT-23	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys