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Data Sheet

FULL DATA SHEET (PDF, 140kB) Download   E-Mail

Description

The DS1232 MicroMonitor™ Chip monitors three vital conditions for a microprocessor: power supply, software execution, and external override. First, a precision temperature-compensated reference and comparator circuit monitors the status of VCC. When an out-of-tolerance condition occurs, an internal power fail signal is generated which forces reset to the active state. When VCC returns to an in-tolerance condition, the reset signals are kept in the active state for a minimum of 250ms to allow the power supply and processor to stabilize.

Key Features

Halts and restarts an out-of-control microprocessor Holds microprocessor in check during power transients Automatically restarts microprocessor after power failure Monitors pushbutton for external override Accurate 5% or 10% microprocessor power supply monitoring Eliminates the need for discrete components Space-saving, 8-pin mini-DIP Optional 16-pin SOIC surface mount package Industrial temperature -40°C to +85°C available, designated N

Application Notes

Application Note 279: Supervisory Circuits Keep Your Microprocessor Under Control - DS1232 Application Note 581: Advantages of Using a MicroMonitor and a Simple Application Demonstrating the Use of a DS1232 - DS1232 Application Note 3316: Dallas Semiconductor Microprocessor Supervisor Selection Guide - DS1232

Evaluation Kits

none

Reliability Reports

Reliability Report: DS1232.pdf

Software/Models

none

Ordering Information
Notes: Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day. Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions. * 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: 1-12 of 12
DS1232	Notes	Free Sample	Buy	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
DS1232				PDIP(N);8 pin;80 mm² Outline Drawing: 21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P8-1*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
DS1232+				PDIP(N);8 pin;80 mm² Outline Drawing: 21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P8+1*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1232N				PDIP(N);8 pin;80 mm² Outline Drawing: 21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P8-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS1232N+				PDIP(N);8 pin;80 mm² Outline Drawing: 21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P8+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1232S				SOIC(W);16 pin;111 mm² Outline Drawing: 21-0042 (PDF) Land Pattern: Not Available Use pkgcode/variation: W16-11*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
DS1232S/T&R	T&R Qty 1000/Reel			SOIC(W);16 pin;111 mm² Outline Drawing: 21-0042 (PDF) Land Pattern: Not Available Use pkgcode/variation: W16-11*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
DS1232S+T&R	T&R Qty 1000/Reel			SOIC(W);16 pin;111 mm² Outline Drawing: 21-0042 (PDF) Land Pattern: Not Available Use pkgcode/variation: W16+11*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1232S+				SOIC(W);16 pin;111 mm² Outline Drawing: 21-0042 (PDF) Land Pattern: Not Available Use pkgcode/variation: W16+11*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1232SN				SOIC(W);16 pin;111 mm² Outline Drawing: 21-0042 (PDF) Land Pattern: Not Available Use pkgcode/variation: W16-11*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS1232SN/T&R	T&R Qty 1000/Reel			SOIC(W);16 pin;111 mm² Outline Drawing: 21-0042 (PDF) Land Pattern: Not Available Use pkgcode/variation: W16-11*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS1232SN+T&R	T&R Qty 1000/Reel			SOIC(W);16 pin;111 mm² Outline Drawing: 21-0042 (PDF) Land Pattern: Not Available Use pkgcode/variation: W16+11*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1232SN+				SOIC(W);16 pin;111 mm² Outline Drawing: 21-0042 (PDF) Land Pattern: Not Available Use pkgcode/variation: W16+11*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis

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