Maxim > Products > Automotive > MAX6332, MAX6333, MAX6334
Maxim > Products > Supervisors, Voltage Monitors, Sequencers > MAX6332, MAX6333, MAX6334

MAX6332, MAX6333, MAX6334

3-Pin, Ultra-Low-Voltage, Low-Power µP Reset Circuits

Industry's-First Stand-Alone Reset ICs for 1.8V supplies in SOT package

Overview

Technical Documents

Ordering Info

Status

Active: In Production.

Description

The MAX6332/MAX6333/MAX6334 microprocessor (µP) supervisory circuits monitor the power supplies in 1.8V to 3.3V µP and digital systems. They increase circuit reliability and reduce cost by eliminating external components and adjustments.

These devices perform a single function: they assert a reset signal whenever the V_CC supply voltage declines below a preset threshold, keeping it asserted for a preset timeout period after V_CC has risen above the reset threshold. The only difference among the three devices is their output. The MAX6333 (push/pull) and MAX6334 (open-drain) have an active-low RESET output, while the MAX6332 (push/pull) has an active-high RESET output. The MAX6332/MAX6333 are guaranteed to be in the correct state for V_CC down to 0.7V. The MAX6334 is guaranteed to be in the correct state for V_CC down to 1.0V.

The reset comparator in these ICs is designed to ignore fast transients on V_CC. Reset thresholds are factory-trimmable between 1.6V and 2.5V, in approximately 100mV increments. There are 15 standard versions available (2,500 piece minimum-order quantity); contact the factory for availability of nonstandard versions (10,000 piece minimum-order quantity). For space-critical applications, the MAX6332/MAX6333/MAX6334 come packaged in a 3-pin SOT23.

Data Sheet

Download	Rev 2	(PDF, 152kB)
E-Mail

Key Features

Ultra-Low 0.7V Operating Supply Voltage
Low 3.3µA Supply Current
Precision Monitoring of 1.8V and 2.5V Power-Supply Voltages
Reset Thresholds Available from 1.6V to 2.5V, in Approximately 100mV Increments
Fully Specified over Temperature
Three Power-On Reset Pulse Widths Available (1ms min, 20ms min, 100ms min)
Low Cost
Three Available Output Structures: Push/Pull Active-Low RESET, Push/Pull RESET, Open-Drain Active-Low RESET
Guaranteed RESET/Active-Low RESET Valid to V_CC = 0.7V (MAX6332/MAX6333)
Power-Supply Transient Immunity
No External Components
3-Pin SOT23 Package
Pin-Compatible with MAX809/MAX810 and MAX6326/MAX6327/MAX6328

Applications/Uses

Automotive Electronics
Computers: Desktop, Workstation, Server
Controllers
Critical µP and µC Power Monitoring
Intelligent Instruments
Pentium® II Computers
Portable Battery-Powered Equipment

Key Specifications:

Supervisors (1 Monitored Voltage)

Part Number

Reset Thresh.
(V)

Reset Out

t_RESET

Watchdog Feature

Reset Thresh. Accur.
(%)

I_CC
(µA)

Budgetary Price

min

@ +25°C

max

See Notes

MAX6332

1.2 to 1.8

1.8 to 2.5

Active High

Push-Pull

1ms to 15ms

15ms to 85ms

85ms to 300ms

No Watchdog

1.8

$1.02 @1k

MAX6333

Active Low

Push-Pull

$1.00 @1k

MAX6334

Active Low

Open Drain

$1.02 @1k

See All Supervisors (1 Monitored Voltage) (274)

Pricing 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.

Diagram

Typical Operating Circuit

Application Notes

Tutorial 720		Keep the Product Working—Microprocessor Supervisors Offer Big Insurance in Small Packages
Application Note 1050		Reset Circuit Ensures Valid Supply Voltage

Product Guides

Microprocessor Supervisory (PDF)

Reliability Reports

Reliability Report:	MAX6333.pdf MAX6334.pdf
Show FIT data for:
Request Reliability Report for:

Software/Models

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Ordering Information

Filters:

Part Number:

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Temperature:

Tape and Reel

Sample

Devices: 151-191 / 191

<-- Previous 1 2 3 4 Next -->

Part Number	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX6334UR19D3+T			Active	SOT; Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX6334UR19D3-T			Active	SOT;3 pin;8 mm² Outline Drawing:21-0051 (PDF) Land Pattern: 90-0179 (PDF) Use pkgcode/variation: U3-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX6334UR20D1+T			Active	SOT; Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX6334UR20D1-T			Active	SOT;3 pin;8 mm² Outline Drawing:21-0051 (PDF) Land Pattern: 90-0179 (PDF) Use pkgcode/variation: U3-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX6334UR20D2+T			Active	SOT; Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX6334UR20D2-T			Active	SOT;3 pin;8 mm² Outline Drawing:21-0051 (PDF) Land Pattern: 90-0179 (PDF) Use pkgcode/variation: U3-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX6334UR20D3+			Active	SOT;3 pin;8 mm² Outline Drawing:21-0051 (PDF) Land Pattern: 90-0179 (PDF) Use pkgcode/variation: U3+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX6334UR20D3+T			Active	SOT;3 pin;8 mm² Outline Drawing:21-0051 (PDF) Land Pattern: 90-0179 (PDF) Use pkgcode/variation: U3+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX6334UR20D3-T			Active	SOT;3 pin;8 mm² Outline Drawing:21-0051 (PDF) Land Pattern: 90-0179 (PDF) Use pkgcode/variation: U3-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX6334UR21D1+T			Active	SOT; Land Pattern: Not Available	-40°C to +85°C	See data sheet
Part Number	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX6334UR21D1-T			Active	SOT;3 pin;8 mm² Outline Drawing:21-0051 (PDF) Land Pattern: 90-0179 (PDF) Use pkgcode/variation: U3-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX6334UR21D2+T			Active	SOT; Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX6334UR21D2-T			Active	SOT;3 pin;8 mm² Outline Drawing:21-0051 (PDF) Land Pattern: 90-0179 (PDF) Use pkgcode/variation: U3-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX6334UR21D3+T			Active	SOT; Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX6334UR21D3-T			Active	SOT;3 pin;8 mm² Outline Drawing:21-0051 (PDF) Land Pattern: 90-0179 (PDF) Use pkgcode/variation: U3-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX6334UR22D1+T			Active	SOT; Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX6334UR22D1-T			Active	SOT;3 pin;8 mm² Outline Drawing:21-0051 (PDF) Land Pattern: 90-0179 (PDF) Use pkgcode/variation: U3-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX6334UR22D2+T			Active	SOT; Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX6334UR22D2-T			Active	SOT;3 pin;8 mm² Outline Drawing:21-0051 (PDF) Land Pattern: 90-0179 (PDF) Use pkgcode/variation: U3-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX6334UR22D3+			Active	SOT;3 pin;8 mm² Outline Drawing:21-0051 (PDF) Land Pattern: 90-0179 (PDF) Use pkgcode/variation: U3+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
Part Number	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX6334UR22D3+T			Active	SOT;3 pin;8 mm² Outline Drawing:21-0051 (PDF) Land Pattern: 90-0179 (PDF) Use pkgcode/variation: U3+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX6334UR22D3-T			Active	SOT;3 pin;8 mm² Outline Drawing:21-0051 (PDF) Land Pattern: 90-0179 (PDF) Use pkgcode/variation: U3-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX6334UR23D1+T			Active	SOT; Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX6334UR23D1-T			Active	SOT;3 pin;8 mm² Outline Drawing:21-0051 (PDF) Land Pattern: 90-0179 (PDF) Use pkgcode/variation: U3-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX6334UR23D2+T			Active	SOT; Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX6334UR23D2-T			Active	SOT;3 pin;8 mm² Outline Drawing:21-0051 (PDF) Land Pattern: 90-0179 (PDF) Use pkgcode/variation: U3-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX6334UR23D3+			Active	SOT;3 pin;8 mm² Outline Drawing:21-0051 (PDF) Land Pattern: 90-0179 (PDF) Use pkgcode/variation: U3+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX6334UR23D3+T			Active	SOT;3 pin;8 mm² Outline Drawing:21-0051 (PDF) Land Pattern: 90-0179 (PDF) Use pkgcode/variation: U3+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX6334UR23D3-T			Active	SOT;3 pin;8 mm² Outline Drawing:21-0051 (PDF) Land Pattern: 90-0179 (PDF) Use pkgcode/variation: U3-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX6334UR24D1+T			Active	SOT;3 pin;8 mm² Outline Drawing:21-0051 (PDF) Land Pattern: 90-0179 (PDF) Use pkgcode/variation: U3+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
Part Number	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX6334UR24D1-T			Active	SOT;3 pin;8 mm² Outline Drawing:21-0051 (PDF) Land Pattern: 90-0179 (PDF) Use pkgcode/variation: U3-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX6334UR24D2+T			Active	SOT; Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX6334UR24D2-T			Active	SOT;3 pin;8 mm² Outline Drawing:21-0051 (PDF) Land Pattern: 90-0179 (PDF) Use pkgcode/variation: U3-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX6334UR24D3+T			Active	SOT; Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX6334UR24D3-T			Active	SOT;3 pin;8 mm² Outline Drawing:21-0051 (PDF) Land Pattern: 90-0179 (PDF) Use pkgcode/variation: U3-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX6334UR25D1+T			Active	SOT; Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX6334UR25D1-T			Active	SOT;3 pin;8 mm² Outline Drawing:21-0051 (PDF) Land Pattern: 90-0179 (PDF) Use pkgcode/variation: U3-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX6334UR25D2+T			Active	SOT; Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX6334UR25D2-T			Active	SOT;3 pin;8 mm² Outline Drawing:21-0051 (PDF) Land Pattern: 90-0179 (PDF) Use pkgcode/variation: U3-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX6334UR25D3+T			Active	SOT; Land Pattern: Not Available	-40°C to +85°C	See data sheet
Part Number	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX6334UR25D3-T			Active	SOT;3 pin;8 mm² Outline Drawing:21-0051 (PDF) Land Pattern: 90-0179 (PDF) Use pkgcode/variation: U3-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis

Devices: 151-191 / 191

<-- Previous 1 2 3 4 Next -->

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; -D = drypack; -U/+U on DS parts = cut tape. More: See Full Data Sheet or Maxim Product 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.

Notes and Comments

Trip thresholds from 1.6V to 2.5V and 1ms, 20ms, or 100ms reset timeout options, push-pull active-low RESET (MAX6333)
Push-pull RESET (MAX6332)
Open-drain active-low RESET (MAX6334)

Similar Products by Function

MAX6326, MAX6327, MAX6328, ...	3-Pin, Ultra-Low-Power SC70/SOT µP Reset Circuits
See All Supervisors (1 Monitored Voltage) (274 Products)

More Information

Topmark Coding	MAX6332
Topmark Coding	MAX6333
Topmark Coding	MAX6334

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Information Index

Overview		Technical Documents		Ordering Info		Related Products
Description Key Features Applications/Uses Key Specifications Diagram Notes and Comments		Data Sheet Application Notes Evaluation Kits Product Guides Reliability Reports Software/Models		Price and Availability Samples Buy Online Package Information Lead-Free Information		Similar Products by Function Similar Products by Application Evaluation Kits Products with Similar Part Numbers Products Used With This

Document Ref.: 19-1411 Rev 2; 2006-03-14
This page last modified: 2010-07-26