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Status

Active: In Production.

Data Sheet

FULL DATA SHEET (PDF, 108kB) Download   E-Mail

Description

The DS1233A EconoReset monitors two vital conditions for a microprocessor: power supply and external override. A precision temperature-compensated reference and comparator circuit are used 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 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. The second function of the DS1233A is pushbutton reset control. The DS1233A debounces a pushbutton closure and will generate a 350ms reset pulse upon release.

Key Features

Automatically restarts microprocessor after power failure Monitors pushbutton for external override Internal circuitry debounces pushbutton switch Maintains reset for 350ms after VCC returns to an in-tolerance condition or pushbutton released Accurate 10% or 15% microprocessor 3.3V power supply monitoring Reduces need for discrete components Precision temperature-compensated voltage reference and voltage sensor Low-cost TO-92 package or surface mount SOT-223 package Internal 5kΩpull-up resistor Operating temperature of -40°C to +85°C

Diagram

Block Diagram

Application Notes

Application Note 3316: Dallas Semiconductor Microprocessor Supervisor Selection Guide - DS1233A

Design Guides

Microprocessor Supervisory (PDF)

Reliability Reports

Request Reliability Report for: DS1233A

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: 1-17 of 17

DS1233A	Notes	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
DS1233AZ-10/TR+C19				Active	SOT-223;3 pin;49 mm² Outline Drawing: 21-0264 (PDF) Land Pattern: Not Available Use pkgcode/variation: K3+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1233AZ-10/T&R	3.3V-10%, 2500/Reel			Active	SOT-223;3 pin;49 mm² Outline Drawing: 21-0264 (PDF) Land Pattern: Not Available Use pkgcode/variation: K3-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS1233AZ-15/T&R	3.3V-15% 2500/Reel			Active	SOT-223;3 pin;49 mm² Outline Drawing: 21-0264 (PDF) Land Pattern: Not Available Use pkgcode/variation: K3-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS1233AZ-10	3.3V-10% Monitor			Active	SOT-223;3 pin;49 mm² Outline Drawing: 21-0264 (PDF) Land Pattern: Not Available Use pkgcode/variation: K3-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS1233AZ-15	3.3V-15% Monitor			Active	SOT-223;3 pin;49 mm² Outline Drawing: 21-0264 (PDF) Land Pattern: Not Available Use pkgcode/variation: K3-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS1233AZ-10+T&R	3.3V-10% 2500/Reel			Active	SOT-223;3 pin;49 mm² Outline Drawing: 21-0264 (PDF) Land Pattern: Not Available Use pkgcode/variation: K3+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1233AZ-15+T&R	3.3V-15% 2500/Reel			Active	SOT-223;3 pin;49 mm² Outline Drawing: 21-0264 (PDF) Land Pattern: Not Available Use pkgcode/variation: K3+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1233AZ-10+				Active	SOT-223;3 pin;49 mm² Outline Drawing: 21-0264 (PDF) Land Pattern: Not Available Use pkgcode/variation: K3+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1233AZ-15+				Active	SOT-223;3 pin;49 mm² Outline Drawing: 21-0264 (PDF) Land Pattern: Not Available Use pkgcode/variation: K3+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1233A-10	3.3V-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
DS1233A-15	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
DS1233A-10/T&R	3.3V-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
DS1233A-15/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
DS1233A-10+T&R	3.3V-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: Lead Free Materials Analysis
DS1233A-15+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: Lead Free Materials Analysis
DS1233A-10+				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
DS1233A-15+				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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