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MicroManager Chip

Product Details

Key Features

Simplified Block Diagram

Technical Docs

Data Sheet MicroManager Chip Jan 11, 2007

Support & Training

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Sampling:
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Key Features

  • Holds microprocessor in check during power transients
  • Halts and restarts an out-of-control microprocessor
  • Monitors pushbutton for external override
  • Warns microprocessor of an impending power failure
  • Converts CMOS SRAM into nonvolatile memory
  • Unconditionally write-protects memory when power supply is out of tolerance
  • Consumes less than 100 nA of battery current at 25°C
  • Controls external power switch for high current applications
  • Accurate 10% power supply monitoring
  • Optional 5% power supply monitoring designated DS1236-5
  • Provides orderly shutdown in nonvolatile microprocessor applications
  • Supplies necessary control for low-power "stop mode" in battery operated hand-held applications
  • Standard 16-pin DIP or space-saving 16-pin SOIC
  • Optional industrial temperature range -40°C to +85°C
  • Electrically Resettable Freshness Seal

Applications/Uses

Description

The DS1236 MicroManager Chip provides all the necessary functions for power supply monitoring, reset control, and memory backup in microprocessor-based systems. A precise internal voltage reference and comparator circuit monitor power supply status. When an out-of-tolerance condition occurs, the microprocessor reset and power-fail outputs are forced active, and static RAM control unconditionally write protects external memory. The DS1236 also provides early warning detection of a user-defined threshold by driving a non-maskable interrupt. External reset control is provided by a pushbutton reset input which is debounced and activates reset outputs. An internal watchdog timer can also force the reset outputs to the active state if the strobe input is not driven low prior to watchdog timeout. Reset control and wake-up/sleep control inputs also provide the necessary signals for orderly shutdown and startup in battery backup and battery operated applications.

Simplified Block Diagram

Technical Docs

Data Sheet MicroManager Chip Jan 11, 2007

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .

Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.