MAX705
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MAX705

Low-Cost, µP Supervisory Circuits

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Low-Cost Reset + Watchdog ICs

Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
Part Models 13
1ku List Price Starting From $3.82
Features
  • Supervisory-Function Integration Significantly Improves System Reliability While Reducing Board Space
    • µMAX Package
    • Guaranteed Active Low RESET Valid at VCC = 1V
      • 200ms Reset Pulse Width
      • Debounced TTL/CMOS-Compatible Manual-Reset Input
      • Active-High Reset Output (MAX707/MAX708/MAX813L)
    • Precision-Supply Voltage Monitor
      • 4.65V (MAX705/MAX707/MAX813L)
      • 4.40V (MAX706/MAX708)
    • Voltage Monitor for Power-Fail or Low-Battery Warning
Additional Details
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The MAX705–MAX708/MAX813L microprocessor (µP) supervisory circuits reduce the complexity and number of components required to monitor power-supply and battery functions in µP systems. These devices significantly improve system reliability and accuracy compared to separate ICs or discrete components.
The MAX705/MAX706/MAX813L provide four functions:
  1. A reset output during power-up, power-down, and brownout conditions.
  2. An independent watchdog output that goes low if the watchdog input has not been toggled within 1.6 seconds.
  3. A 1.25V threshold detector for power-fail warning, low-battery detection, or for monitoring a power supply other than +5V.
  4. An active-low manual-reset input.
The MAX707/MAX708 are the same as the MAX705/MAX706, except an active-high reset is substituted for the watchdog timer. The MAX813L is the same as the MAX705, except RESET is provided instead of active-low RESET.
Two supply-voltage monitor levels are available: The MAX705/MAX707/MAX813L generate a reset pulse when the supply voltage drops below 4.65V, while the MAX706/MAX708 generate a reset pulse below 4.40V. All four parts are available in 8-pin DIP, SO and µMAX® packages.

Applications

  • Computers
  • Controllers
  • Critical µP Power Monitoring
  • Intelligent Instruments
Part Models 13
1ku List Price Starting From $3.82

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
MAX705C/D
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MAX705CPA+
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MAX705CSA+
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MAX705CSA+T
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MAX705CUA+
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MAX705CUA+T
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MAX705EPA+
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MAX705ESA+
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MAX705ESA+T
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MAX705EUA+
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MAX705EUA+T
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MAX705MJA
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MAX705MJA/883B
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Product Lifecycle

PCN

May 1, 2020

- 1702R

ASSEMBLY

MAX705CSA+

PRODUCTION

MAX705CSA+T

PRODUCTION

Aug 28, 2018

- 1702A

ASSEMBLY

MAX705ESA+

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MAX705ESA+T

PRODUCTION

Sep 19, 2018

- 1753N

ASSEMBLY

MAX705EUA+

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MAX705EUA+T

PRODUCTION

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Part Models

Product Lifecycle

PCN

May 1, 2020

- 1702R

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ASSEMBLY

MAX705CSA+

PRODUCTION

MAX705CSA+T

PRODUCTION

Aug 28, 2018

- 1702A

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ASSEMBLY

MAX705ESA+

PRODUCTION

MAX705ESA+T

PRODUCTION

Sep 19, 2018

- 1753N

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ASSEMBLY

MAX705EUA+

PRODUCTION

MAX705EUA+T

PRODUCTION

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