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MAX709L, MAX709M, MAX709R, MAX709S, MAX709T
电源监视器,带有复位


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概述
完整的数据资料 (PDF, 184kB)
英文 Download this datasheet in PDF format下载

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.

关键特性   应用/使用
  • +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

 
  • 元件数最少的低成本处理器系统

    Key Specifications:   Supervisors (1 Monitored Voltage)
    Part Number Reset Threshold Range (V) Active-Low Reset Output Min. Reset Timeout Range Watchdog Feature Reset Thresh. Acc. (% @+25°C) Max. ICC (µA) Price**
    MAX709  2.5 to 3.3
    3.3 to 5.5
    Push-Pull 85ms to 300ms No Watchdog 2.5 150 $1.13 @ 1k
    See All Supervisors (1 Monitored Voltage) (268)
    Notes:
    **This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

    图表
    MAX709L,MAX709M,MAX709R,MAX709S,MAX709T:典型工作电路
    典型工作电路

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    参考文献: 19-0136; Rev. 2; 2006-03-27
    本页最后一次更新: 2007-07-17



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