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Maxim > Products > [Supervisors, Voltage Monitors, Sequencers] 
DS1233M
EconoReset


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Status
Active: In Production.

Data Sheet
FULL DATA SHEET (PDF, 128kB)
Download this datasheet in PDF formatDownload   Send this datasheet to any email addressE-Mail

Description

The DS1233M EconoReset uses a precision temperature-compensated reference and comparator circuit to monitor the status of the power supply (VCC). When an out-of-tolerance condition is detected, an internal power fail signal is generated, which forces reset to the active (low) state. When VCC returns to an in-tolerance condition, the reset signal is kept in the active state for approximately 350ms to allow the power supply and processor to stabilize.

Key Features
  		• Automatically restarts microprocessor after power failure
  		• Maintains reset for 350ms after VCC returns to an in-tolerance condition
  		• Reduces need for discrete components
  		• Precision temperature-compensated voltage reference and voltage sensor
  		• Low-cost TO-92 package or surface mount 8-pin SO packages available package
  		• Internal 5k ohm pullup resistor
  		• Compatible with Motorola 68XXX series and HC16 Microprocessors
  		• Pin function compatible with the Motorola MC33064, MC34064, MC33164, and MC34164
  		• Operating temperature of -40°C to +85°C

    Key Specifications:  Supervisors (1 Monitored Voltage)
    Part Number Reset Thresh.
    (V)    		 Reset Out tRESET Watchdog Feature Reset Thresh. Accur.
    (%)    		 ICC
    (µA)    		 Price
    Active Low min @ +25°C max See Notes
    DS1233M 
    2.5 to 3.3
    3.3 to 5.5
    		 Open Drain with Internal Pull-Up
    85ms to 300ms
    300ms to 1s
    		 No Watchdog 2.5 50 $0.72 @1k
    See All Supervisors (1 Monitored Voltage) (274)

    Diagram
    DS1233M: Block Diagram
    Block Diagram

    Application Notes
  		• Application Note 3316: Dallas Semiconductor Microprocessor Supervisor Selection Guide - DS1233M

    Reliability Reports
  		• Request Reliability Report for:

    Software/Models
    none

    Ordering Information
    Notes:

    1. Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
    2. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
    3. Part number suffixes: T or T&R = tape and reel;+ = RoHS/lead-free;# = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions.
    4. * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.


    Devices: 1-24 of 24

    DS1233M Notes Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    DS1233MS-55+T&R    
    		Active SOIC(N);8 pin;31 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0096 (PDF)
    Use pkgcode/variation: S8+2*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    DS1233MS-3+T&R    
    		Active SOIC(N);8 pin;31 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0096 (PDF)
    Use pkgcode/variation: S8+4*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    DS1233MS-5+  
    		Active SOIC(N);8 pin;31 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0096 (PDF)
    Use pkgcode/variation: S8+2*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    DS1233MS-3+  
    		Active SOIC(N);8 pin;31 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0096 (PDF)
    Use pkgcode/variation: S8+4*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    DS1233MS-5+T&R    
    		Active SOIC(N);8 pin;31 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0096 (PDF)
    Use pkgcode/variation: S8+2*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    DS1233MS-55   5V-5% Monitor  
    		Active SOIC(N);8 pin;31 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0096 (PDF)
    Use pkgcode/variation: S8-4*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    DS1233MS-5   5V-10% Monitor  
    		Active SOIC(N);8 pin;31 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0096 (PDF)
    Use pkgcode/variation: S8-2*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    DS1233MS-3   3.3V-15% Monitor  
    		Active SOIC(N);8 pin;31 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0096 (PDF)
    Use pkgcode/variation: S8-4*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    DS1233MS-55/T&R   5V-5% 2500/Reel  
    		Active SOIC(N);8 pin;31 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0096 (PDF)
    Use pkgcode/variation: S8-4*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    DS1233MS-5/T&R   5V-10% 2500/Reel  
    		Active SOIC(N);8 pin;31 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0096 (PDF)
    Use pkgcode/variation: S8-2*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    DS1233MS-3/T&R   3.3V-15%, 2500/Reel  
    		Active SOIC(N);8 pin;31 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0096 (PDF)
    Use pkgcode/variation: S8-4*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    DS1233MS-55+  
    		Active SOIC(N);8 pin;31 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0096 (PDF)
    Use pkgcode/variation: S8+2*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    DS1233M-5+T&R    
    		Active TO92;3 pin;20 mm²
    Outline Drawing: 21-0248 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: Q3+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    DS1233M-3+  
    		Active TO92;3 pin;20 mm²
    Outline Drawing: 21-0248 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: Q3+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    DS1233M-55+T&R    
    		Active TO92;3 pin;28 mm²
    Outline Drawing: 21-0250 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: Q3+4*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    DS1233M-3+T&R    
    		Active TO92;3 pin;28 mm²
    Outline Drawing: 21-0250 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: Q3+4*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    DS1233M-55   5V-5% Monitor  
    		Active TO92;3 pin;20 mm²
    Outline Drawing: 21-0248 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: Q3-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    DS1233M-5   5V-10% Monitor  
    		Active TO92;3 pin;20 mm²
    Outline Drawing: 21-0248 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: Q3-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    DS1233M-3   3.3V-15% Monitor  
    		Active TO92;3 pin;20 mm²
    Outline Drawing: 21-0248 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: Q3-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    DS1233M-55/T&R   5V-5% 2000/reel  
    		Active TO92;3 pin;28 mm²
    Outline Drawing: 21-0250 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: Q3-4*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    DS1233M-5/T&R   5V-10% 2000/Reel  
    		Active TO92;3 pin;28 mm²
    Outline Drawing: 21-0250 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: Q3-4*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    DS1233M-3/T&R   3.3V-15% 2000/Reel  
    		Active TO92;3 pin;28 mm²
    Outline Drawing: 21-0250 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: Q3-4*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    DS1233M-55+  
    		Active TO92;3 pin;20 mm²
    Outline Drawing: 21-0248 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: Q3+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    DS1233M-5+  
    		Active TO92;3 pin;20 mm²
    Outline Drawing: 21-0248 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: Q3+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis

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    1998-02-26
    This page last modified: 2009-10-26


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