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MAX709L, MAX709M, MAX709R, MAX709S, MAX709T

Power-Supply Monitor with Reset

Product Details

Key Features

Parametric specs for Supervisors (1 Monitored Voltage)
Reset Thresh. (V) 2.5 to 3.3
3.3 to 5.5
Reset Thresh. Accur. (%) (@ +25°C) 2.5
Reset Out Active Low
Push-Pull
tRESET (min) 85ms to 300ms
Watchdog Feature No Watchdog
ICC (µA) (max) 150
Package/Pins PDIP/8
SOIC (N)/8
UMAX/8
Budgetary
Price (See Notes)
1.58
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Simplified Block Diagram

Technical Docs

Data Sheet Power-Supply Monitor with Reset Mar 27, 2006

Support & Training

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Parameters

Parametric specs for Supervisors (1 Monitored Voltage)
Reset Thresh. (V) 2.5 to 3.3
3.3 to 5.5
Reset Thresh. Accur. (%) (@ +25°C) 2.5
Reset Out Active Low
Push-Pull
tRESET (min) 85ms to 300ms
Watchdog Feature No Watchdog
ICC (µA) (max) 150
Package/Pins PDIP/8
SOIC (N)/8
UMAX/8
Budgetary
Price (See Notes)
1.58

Key Features

  • +5V, +3.3V, and +3V Versions
  • No External Components
  • Low Cost
  • Precise Power-Down Reset Threshold
  • 140ms Min Power-On Reset Delay
  • Immune to Short Negative VCC Transients
  • 8-Pin DIP, µMAX, and SO Packages
  • Low Supply Current:
    • 35µA - MAX709R/S/T
    • 65µA - MAX709L/M

Applications/Uses

  • Minimum Component Count, Low-Cost Processor Systems

Description

The MAX709 provides a system reset during power-up, power-down, and brownout conditions. When VCC falls below the reset threshold, RESET goes low and holds the µP in reset for 140ms min after VCC rises above the threshold.

The RESET output is guaranteed to be in the correct state with VCC down to 1V. The MAX709 provides excellent circuit reliability and low cost by eliminating external components and adjustments when used with +5V, +3.3V, or +3V powered systems. The MAX709 is available 8-pin DIP, µMAX®, and SO packages.

Simplified Block Diagram

MAX709L, MAX709M, MAX709R, MAX709S, MAX709T: Typical Operating Circuit MAX709L, MAX709M, MAX709R, MAX709S, MAX709T: Typical Operating Circuit Zoom icon

Technical Docs

Data Sheet Power-Supply Monitor with Reset Mar 27, 2006

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 .