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ADM6320:  Supervisory Circuit with Watchdog, Manual Reset, and Active-Low/Open-Drain

Product Details


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 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 parts feature different combinations of watchdog input, manual reset input, and output stage configuration, as shown in Table 1.

Each part 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.

Applications

  • Microprocessor systems
  • Computers
  • Controllers
  • Intelligent instruments
  • Portable equipment

FEATURES and BENEFITS

  • 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
    active low open-drain
  • 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

Functional Block Diagram for ADM6320

Design Tools,Models,Drivers & Software

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Evaluation Kits & Symbols & Footprints

Symbols and Footprints— Analog Devices offers Symbols & Footprints which are compatible with a large set of today’s CAD systems for broader and easier support.

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Price, packaging, availability

ADM6320 Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
ADM6320BX33ARJZ-R7 Status: Production 5 ld SOT-23 5 Ind Reel, 3000 - $0.51 Y  Material Info PCN Purchase Sample
ADM6320BX45ARJZ-R7 Status: Production 5 ld SOT-23 5 Ind Reel, 3000 - $0.51 Y  Material Info PCN Purchase Sample
ADM6320CW33ARJZ-R7 Status: Production 5 ld SOT-23 5 Ind Reel, 3000 - $0.51 Y  Material Info PCN Purchase Sample
ADM6320CX29ARJZ-R7 Status: Production 5 ld SOT-23 5 Ind Reel, 3000 - $0.51 Y  Material Info PCN Purchase Sample
ADM6320CY29ARJ-RL7 Status: Production 5 ld SOT-23 5 Ind Reel, 3000 - $0.59 N  Material Info PCN Purchase Sample
ADM6320CY29ARJZ-R7 Status: Production 5 ld SOT-23 5 Ind Reel, 3000 - $0.51 Y  Material Info PCN Purchase Sample
ADM6320CY46ARJ-RL7 Status: Production 5 ld SOT-23 5 Ind Reel, 3000 - $0.59 N  Material Info PCN Purchase Sample
ADM6320CY46ARJZ-R7 Status: Production 5 ld SOT-23 5 Ind Reel, 3000 - $0.51 Y  Material Info PCN Purchase Sample
ADM6320CZ27ARJZ-R7 Status: Production 5 ld SOT-23 5 Ind Reel, 3000 - $0.59 Y  Material Info Notify Me Purchase Sample
ADM6320CZ29ARJ-RL7 Status: Production 5 ld SOT-23 5 Ind Reel, 3000 - $0.59 N  Material Info PCN Purchase Sample
ADM6320CZ29ARJZ-R7 Status: Production 5 ld SOT-23 5 Ind Reel, 3000 - $0.51 Y  Material Info PCN Purchase Sample
Price Table Help

The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.


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