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MAX6467, MAX6468

Microprocessor Supervisory Reset Circuits with Edge-Triggered, One-Shot Manual Reset

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Status Explanations for product status codes

Active: In Production.

Description

The MAX6467/MAX6468 microprocessor (µP) supervisory circuits monitor single power-supply voltages from +1.8V to +5.0V and assert a reset if the supply voltage drops below its preset threshold. An edge-triggered, one-shot manual reset function ensures that the µP enters the reset mode for a fixed timeout period only, even in the event of a continuously asserted manual reset. The MAX6467/MAX6468 significantly improve system reliability compared to traditional manual reset supervisory circuits.

A variety of factory-trimmed threshold options accommodate different supply voltages and tolerances, eliminating external components. The factory-set thresholds range from +1.575V to +4.625V to monitor +5.0V, +3.3V, +3.0V, +2.5V, and +1.8V supplies with various tolerances. Reset timeout periods of 150ms (min) and 1200ms (min) are available to accommodate different µP platforms.

A single, active-low RESET output asserts when VCC drops below its threshold or if the edge-triggered active-low MR asserts low. Active-low RESET remains low for the reset timeout period after VCC rises above its threshold and for a fixed, one-shot timeout period after a manual reset input falling edge. Active-low RESET remains valid as long as VCC remains above +1V. Open-drain (MAX6467) and push-pull (MAX6468) output options provide additional flexibility in the system design.

The MAX6467/MAX6468 are offered in the space-saving 4-pin SOT143 package and the ultra-small 4-pin SC70 package and are specified over the automotive (-40°C to +125°C) temperature range.

Data Sheet

Download this datasheet in PDF formatDownload Rev 1 (PDF, 324kB)
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Key Features

  • Precision Factory-Set Reset Threshold Voltages for +5.0V, +3.3V, +3.0V, +2.5V, and +1.8V Supplies
  • Edge-Triggered Manual Reset Input with One-Shot Pulsed Reset Output
  • Two Reset Timeout Period Options (150ms or 1200ms min)
  • Immune to Short Voltage Transients
  • Low Supply Current (3µA at VCC = +1.8V)
  • Active-Low RESET Valid to VCC = +1V
  • Active-Low Open-Drain and Push-Pull Active-Low RESET Output Options
  • -40°C to +125°C Operating Temperature Range
  • Small 4-Pin SC70 and SOT143 Packages
  • No External Components Required
  • Pin Compatible with MAX811, MAX6315, MAX6384, and MAX6386
 

Applications/Uses

  • Automotive Electronics
  • Cell Phones/PDAs
  • Digital Still Cameras
  • DSL Modems
  • Embedded Control Systems
  • Global Positioning Systems (GPS)
  • Industrial Equipment
  • Medical Devices
  • MP3 Players
  • Portable Battery-Powered Equipment
   

Key Specifications:

Pushbutton Devices
Part Number Monitored Voltages Manual Reset Feature MR1 Setup Time Reset Thresh.
(V)
Reset Out tRESET Reset Thresh. Accur.
(%)
ICC
(µA)
Budgetary
Price
min @ +25°C max See Notes
MAX6467  1 One-Shot 1µs
1.2 to 1.79
1.8 to 2.49
2.5 to 3.29
3.3 to 4.99
Active Low
Open Drain
85ms to 300ms
>1s
1.5 13 $1.11 @1k
MAX6468 
Active Low
Push-Pull
See All Pushbutton Devices (17)

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 and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.


Switch Debouncer/Protectors
Part Number Switch Inputs Edge Triggered Functions Debounce Duration
(ms)
Output Polarity Output Type Switch Inputs
(±V)
ESD Protect.
(±kV)
ICC
(µA)
Budgetary
Price
max max See Notes
MAX6467  1 Falling Edge Non-Retriggerable One-Shot 85 to 300 Active Low Open-Drain +5.5 2 13 $1.11 @1k
MAX6468  Push-Pull
See All Switch Debouncer/Protectors (6)

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 and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.



Diagram

MAX6467, MAX6468: Typical Operating Circuit
Typical Operating Circuit

Technical Documents

App Note 4624  Nonvolatile STANDBY/ON Switch

Product Guides

Microprocessor Supervisory (PDF)

Reliability Reports

Reliability Report: MAX6467.pdf MAX6468.pdf
Show FIT data for:

Ordering Information

Filters: Part Number Package: Temperature: Tape and Reel Sample
Devices: 1-50 / 519 <-- Previous  1 2 3 4 5 6 7 8 9 10 11   Next -->
Part Number Free
Sample
Buy Status Explanations for product status codes Package:
TYPE PINS FOOTPRINT
DRAWING  CODE/VAR *
Temp RoHS/Lead-Free?
Materials Analysis
MAX6467US16D3    
Active SOT;4 pin;8 mm²
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
MAX6467US16D3+  
Active SOT;4 pin;8 mm²
-40°C to +85°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX6467US16D3+T    
Active SOT;4 pin;8 mm²
-40°C to +85°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX6467US16D3-T    
Active SOT;4 pin;8 mm²
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
MAX6467US16D7+T    
Active SOT;4 pin;8 mm²
-40°C to +85°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX6467US16D7-T    
Active SOT;4 pin;8 mm²
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
MAX6467US17D3+T    
Active SOT;
-40°C to +85°C See data sheet
MAX6467US17D3-T    
Active SOT;4 pin;8 mm²
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
MAX6467US17D7+T    
Active SOT;
-40°C to +85°C See data sheet
MAX6467US17D7-T    
Active SOT;4 pin;8 mm²
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
Part Number Free
Sample
Buy Status Explanations for product status codes Package:
TYPE PINS FOOTPRINT
DRAWING  CODE/VAR *
Temp RoHS/Lead-Free?
Materials Analysis
MAX6467US18D3+T    
Active SOT;
-40°C to +85°C See data sheet
MAX6467US18D3-T    
Active SOT;4 pin;8 mm²
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
MAX6467US18D7+T    
Active SOT;
-40°C to +85°C See data sheet
MAX6467US18D7-T    
Active SOT;4 pin;8 mm²
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
MAX6467US19D3+T    
Active SOT;
-40°C to +85°C See data sheet
MAX6467US19D3-T    
Active SOT;4 pin;8 mm²
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
MAX6467US19D7+T    
Active SOT;
-40°C to +85°C See data sheet
MAX6467US19D7-T    
Active SOT;4 pin;8 mm²
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
MAX6467US20D3+T    
Active SOT;
-40°C to +85°C See data sheet
MAX6467US20D3-T    
Active SOT;4 pin;8 mm²
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
Part Number Free
Sample
Buy Status Explanations for product status codes Package:
TYPE PINS FOOTPRINT
DRAWING  CODE/VAR *
Temp RoHS/Lead-Free?
Materials Analysis
MAX6467US20D7+T    
Active SOT;
-40°C to +85°C See data sheet
MAX6467US20D7-T    
Active SOT;4 pin;8 mm²
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
MAX6467US21D3+T    
Active SOT;
-40°C to +85°C See data sheet
MAX6467US21D3-T    
Active SOT;4 pin;8 mm²
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
MAX6467US21D7+T    
Active SOT;
-40°C to +85°C See data sheet
MAX6467US21D7-T    
Active SOT;4 pin;8 mm²
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
MAX6467US22D3+  
Active SOT;4 pin;8 mm²
-40°C to +85°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX6467US22D3+T    
Active SOT;4 pin;8 mm²
-40°C to +85°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX6467US22D3-T    
Active SOT;4 pin;8 mm²
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
MAX6467US22D7+T    
Active SOT;
-40°C to +85°C See data sheet
Part Number Free
Sample
Buy Status Explanations for product status codes Package:
TYPE PINS FOOTPRINT
DRAWING  CODE/VAR *
Temp RoHS/Lead-Free?
Materials Analysis
MAX6467US22D7-T    
Active SOT;4 pin;8 mm²
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
MAX6467US23D3+T    
Active SOT;
-40°C to +85°C See data sheet
MAX6467US23D3-T    
Active SOT;4 pin;8 mm²
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
MAX6467US23D7+T    
Active SOT;
-40°C to +85°C See data sheet
MAX6467US23D7-T    
Active SOT;4 pin;8 mm²
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
MAX6467US24D3+T    
Active SOT;
-40°C to +85°C See data sheet
MAX6467US24D3-T    
Active SOT;4 pin;8 mm²
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
MAX6467US24D7+T    
Active SOT;
-40°C to +85°C See data sheet
MAX6467US24D7-T    
Active SOT;4 pin;8 mm²
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
MAX6467US25D3+T    
Active SOT;
-40°C to +85°C See data sheet
Part Number Free
Sample
Buy Status Explanations for product status codes Package:
TYPE PINS FOOTPRINT
DRAWING  CODE/VAR *
Temp RoHS/Lead-Free?
Materials Analysis
MAX6467US25D3-T    
Active SOT;4 pin;8 mm²
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
MAX6467US25D7+T    
Active SOT;
-40°C to +85°C See data sheet
MAX6467US25D7-T    
Active SOT;4 pin;8 mm²
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
MAX6467US26D3+  
Active SOT;4 pin;8 mm²
-40°C to +85°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX6467US26D3+T    
Active SOT;4 pin;8 mm²
-40°C to +85°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX6467US26D3-T    
Active SOT;4 pin;8 mm²
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
MAX6467US26D7+T    
Active SOT;
-40°C to +85°C See data sheet
MAX6467US26D7-T    
Active SOT;4 pin;8 mm²
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
MAX6467US27D3+T    
Active SOT;
-40°C to +85°C See data sheet
MAX6467US27D3-T    
Active SOT;4 pin;8 mm²
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
Devices: 1-50 / 519 <-- Previous  1 2 3 4 5 6 7 8 9 10 11   Next -->

Notes:
  1. Other options and links for purchasing parts are listed at: http://www.maximintegrated.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; -D = drypack; -U/+U on DS parts = cut tape. More: See Full Data Sheet or Maxim Product 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.

Similar Products by Function

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More Information

Topmark Coding MAX6467
Topmark Coding MAX6468
New Product Press Release   2002-09-05 ]

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Information Index

Document Ref.: 19-2523 Rev 1; 2006-05-26
This page last modified: 2009-10-14