ADM1232:  Microprocessor Supervisory Circuit

The ADM1232 is a superior, pin-compatible upgrade for the MAX1232 and the DS1232LP and DS1232. The Analog Devices ADM1232 is a microprocessor monitoring circuit that can monitor:

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ADM1232:  Microprocessor Supervisory Circuit

Product Description

The ADM1232 is a superior, pin-compatible upgrade for the MAX1232 and the DS1232LP and DS1232. The Analog Devices ADM1232 is a microprocessor monitoring circuit that can monitor:

  • Microprocessor Supply Voltage
  • Whether a Microprocessor has locked-up
  • An External Interrupt

    • The ADM1232 is available in four different packages:

  • The ADM1232ARM in an 8-lead microSOIC (RM-8).
  • The ADM1232AN in an 8-lead PDIP (N-8).
  • The ADM1232ARW in a 16-lead wide SOIC (R-16).
  • The ADM1232ARN is an 8-lead narrow SOIC (R-8).

    • Features

    • Superior Upgrade for MAX1232 and Dallas DS1232
    • Adjustable Precision Voltage Monitor with +4.5 V and +4.75 V Options
    • Low Power Consumption (500 µA max)
    • Adjustable STROBE Monitor with 150 ms,600 ms or 1.2 sec Options
    • No External Components

    Diagrams

    ADM1232 Diagram
    Functional Block Diagram for ADM1232

    Specifications

    Batt-Backup-Flg No
    Manual Reset Capability Yes
    Reset Threshold Summary 4.37V & 4.62V
    Reset Output-Stage Active-High/Push-Pull,Active-Low/Open-Drain
    Min Reset Timeout (ms) 250
    Typ Watchdog Timeout (ms) 250,500,62.5
    Watchdog Timer Yes
    Package DIP,SOIC,SOP
    Power Fail Indicator No

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    Part# Reset Threshold Summary Min Reset Timeout (ms) Reset Output-Stage Manual Reset Capability Typ Watchdog Timeout (ms) Power Fail Indicator Package Product Description Price* (1000-4999)
    AD5100 Programmable Adj Active-Low/Push-Pull Yes adj. Yes SOP System-Mgmt IC with Programmable Quad Voltage Monitoring and Supervisory Functions $1.60
    ADM1232 4.37V & 4.62V 250 Active-High/Push-Pull, Active-Low/Open-Drain Yes 250, 500, 62.5 No DIP, SOIC, SOP Microprocessor Supervisory Circuit $0.95
    ADM13305 5 Options--0.6Adj to 4.55 140 Active-High/Push-Pull, Active-Low/Push-Pull Yes 1.6 - SOIC Dual Processor Supervisor with Watchdog $0.96
    ADM6316 26 Options--2.5 to 5V 1, 1,200, 140, 20 Active-Low/Push-Pull Yes 102, 1,600, 25,600, 6.3 No SOT Supervisory Ckt w/ Watchdog, Manual Reset & Active-Low, Push-Pull Reset Output in 5-Lead SOT-23 $0.51
    ADM6318 26 Options--2.5 to 5V 1, 1,200, 140, 20 Active-High/Push-Pull, Active-Low/Push-Pull No 102, 1,600, 25,600, 6.3 No SOT Supervisory Circuit with Watchdog and Dual Active-Low/Active-High Push-Pull Reset Outputs $0.50
    ADM6320 26 Options--2.5 to 5V 1, 1,200, 140, 20 Active-Low/Open-Drain Yes 102, 1,600, 25,600, 6.3 No SOT Supervisory Circuit with Watchdog, Manual Reset & Active-Low, Open-Drain Reset Output $0.51
    ADM6321 26 Options--2.5 to 5V 1, 1,200, 140, 20 Active-High/Push-Pull, Active-Low/Open-Drain No 102, 1,600, 25,600, 6.3 No SOT Supervisory Circuit with Watchdog and Dual Active-Low Open-Drain/Active-High Push-Pull Reset Outputs $0.51
    ADM6821 9 Options--1.58 to 4.63V 140 Active-High/Push-Pull Yes 1,600 No SOT Low Voltage Supervisory Circuit w/ Watchdog, Manual Reset and Active-High, Push-Pull Reset Output -
    ADM6822 9 Options--1.58 to 4.63V 140 Active-Low/Open-Drain Yes 1,600 No SOT Low Voltage Supervisory Circuit w/ Watchdog, Manual Reset and Open-Drain Reset Output -
    ADM6823 9 Options--1.58 to 4.63V 140 Active-Low/Push-Pull Yes 1,600 No SOT Low Voltage Supervisory Circuit w/ Watchdog, Manual Reset and Active-Low, Push-Pull Reset Output $0.76
    ADM6824 9 Options--1.58 to 4.63V 140 Active-High/Push-Pull, Active-Low/Push-Pull No 1,600 No SOT Low Voltage Supervisory Circuit w/ Watchdog, Manual Reset, Active-Hi & Low Push-Pull Reset Output -
    ADM699 4.65V 140 Active-High/Push-Pull, Active-Low/Push-Pull No 1,600 No DIP, SOIC µP Supv w/ Watchdog, 4.65V Trip Point, Low Supply Current and Active Low Reset Output $1.68
    ADM705 4.65V 160 Active-Low/Push-Pull Yes 1,600 Yes DIP, SOIC µP Supv w/ 4.65V Trip Voltage, Watchdog, Pwr Fail, Manual Reset & Active Low Reset Output $1.02
    ADM706 4.4V 160 Active-Low/Push-Pull Yes 1,600 Yes DIP, SOIC +3V, Voltage Monitoring µP Supervisory Circuit $1.70
    ADM823 7 Options--2.19 to 4.63V 140 Active-Low/Push-Pull Yes 1,600 No SC70, SOT Supervisory Circuit with Watchdog, Manual Reset and Active-Low, Push-Pull Reset Output $0.51
    ADM824 7 Options--2.19 to 4.63V 140