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Maxim > Products > Supervisors, Voltage Monitors, Sequencers > MAX6365, MAX6366, MAX6367, ...

MAX6365, MAX6366, MAX6367, MAX6368

SOT23, Low-Power µP Supervisory Circuits with Battery Backup and Chip-Enable Gating

Industry's Only SOT23 µP Supervisory Circuit with Battery Backup and Chip-Enable Gating

Overview

Technical Documents

Ordering Info

Status

Active: In Production.

Description

The MAX6365–MAX6368 supervisory circuits simplify power-supply monitoring, battery-backup control functions, and memory write protection in microprocessor (µP) systems. The circuits significantly improve the size, accuracy, and reliability of modern systems with an ultra-small integrated solution.

These devices perform four basic system functions:

Provide a µP reset output during V_CC supply power-up, power-down, and brownout conditions.
Internally control V_CC to backup-battery switching to maintain data or low-power operation for CMOS RAM, CMOS µPs, real-time clocks, and other digital logic when the main supply fails.
Provide memory write protection through internal chip-enable gating during supply or processor faults.
Include one of the following options: a manual reset input (MAX6365), a watchdog timer function (MAX6366), a battery-on output (MAX6367), or an auxiliary user-adjustable reset input (MAX6368).

The MAX6365–MAX6368 operate from V_CC supply voltages as low as 1.2V. The factory preset reset threshold voltages range from 2.32V to 4.63V (see Ordering Information in the full data sheet). In addition, each part is offered in three reset output versions: push-pull active low, open-drain active low, or open-drain active high (see Selector Guide in the full data sheet). The MAX6365–MAX6368 are available in miniature 8-pin SOT23 packages.

Data Sheet

Download	Rev 5	(PDF, 170.1kB)
E-Mail

Key Features

Low +1.2V Operating Supply Voltage (V_CC or V_BATT)
Precision Monitoring of +5.0, +3.3V, +3.0V, and +2.5V Power-Supply Voltages
On-Board Gating of Chip-Enable Signals, 1.5ns Propagation Delay
Debounced Manual Reset Input (MAX6365)
Watchdog Timer, 1.6s Timeout (MAX6366)
Battery-On Output Indicator (MAX6367)
Auxiliary User-Adjustable RESET IN (MAX6368)
Low 10µA Quiescent Supply Current
Three Available Output Structures
- Push-Pull Active-Low RESET
- Open-Drain Active-Low RESET
- Open-Drain RESET
RESET/Active-Low RESET Valid Down to 1.2V Guaranteed
- (V_CC or V_BATT)
Power-Supply Transient Immunity
150ms min Reset Timeout Period
Miniature 8-Pin SOT23 Package
Underwriters Laboratories (UL) Recognized

Applications/Uses

Computers: Desktop, Workstation, Server
Notebook Computers
Palmtop Computers
Pen Entry Palmtops
Portable Patient Monitoring/Drug Delivery
Portable Test Meters
POS Terminals
Printers and Faxes
Programmable Logic Controllers

Key Specifications:

Battery Backup Circuits

Part Number

Reset Thresh.
(V)

Reset Out

I_CC
(µA)

Features

Industry Qualified

Oper. Temp.
(°C)

Package/Pins

Smallest Available Pckg.
(mm²)

Budgetary Price

max

max w/pins

See Notes

MAX6365H

2.5 to 3.3

3.3 to 5.5

Active High

Open Drain

Chip Enable Gate

Manual Reset

-40 to +85

SOT/8

$1.96 @1k

MAX6365L

2.5 to 3.3

3.3 to 5.5

Active Low

Push-Pull

Chip Enable Gate

Manual Reset

SOT/8

$1.96 @1k

MAX6365P

2.5 to 3.3

3.3 to 5.5

Active Low

Open Drain

Chip Enable Gate

Manual Reset

SOT/8

$1.96 @1k

MAX6366H

2.5 to 3.3

3.3 to 5.5

Active High

Open Drain

Chip Enable Gate

Watchdog

SOT/8

$1.96 @1k

MAX6366L

2.5 to 3.3

3.3 to 5.5

Active Low

Push-Pull

Chip Enable Gate

Watchdog

SOT/8

$1.96 @1k

MAX6366P

2.5 to 3.3

3.3 to 5.5

Active Low

Open Drain

Chip Enable Gate

Watchdog

SOT/8

$1.96 @1k

MAX6367H

2.5 to 3.3

3.3 to 5.5

Active High

Open Drain

Battery On

Chip Enable Gate

SOT/8

$1.96 @1k

MAX6367L

2.5 to 3.3

3.3 to 5.5

Active Low

Push-Pull

Battery On

Chip Enable Gate

SOT/8

$1.96 @1k

MAX6367P

2.5 to 3.3

3.3 to 5.5

Active Low

Open Drain

Battery On

Chip Enable Gate

Automotive - AECQ100

Automotive - General

SOT/8

$1.96 @1k

MAX6368H

1.2 to 1.8

1.8 to 2.5

2.5 to 3.3

3.3 to 5.5

Active High

Open Drain

Adjustable Reset Input

Chip Enable Gate

SOT/8

$1.96 @1k

MAX6368L

1.2 to 1.8

1.8 to 2.5

2.5 to 3.3

3.3 to 5.5

Active Low

Push-Pull

Adjustable Reset Input

Chip Enable Gate

SOT/8

$1.96 @1k

MAX6368P

1.2 to 1.8

1.8 to 2.5

2.5 to 3.3

3.3 to 5.5

Active Low

Open Drain

Adjustable Reset Input

Chip Enable Gate

SOT/8

$1.96 @1k

See All Battery Backup Circuits (86)

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

Product Guides

Microprocessor Supervisory (PDF)

Reliability Reports

Reliability Report:	MAX6365.pdf MAX6366L.pdf MAX6367P.pdf
Show FIT data for:
Request Reliability Report for:
Underwriters Laboratories (UL) Recognized

Software/Models

none

Ordering Information

Filters:

Part Number:

Package:

Temperature:

Tape and Reel

Sample

Devices: 151-179 / 179

<-- 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
MAX6368LKA26+TG0N			Active	SOT;8 pin;9 mm² Outline Drawing:21-0078 (PDF) Land Pattern: 90-0176 (PDF) Use pkgcode/variation: K8SN+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX6368LKA26-T			Active	SOT;8 pin;9 mm² Outline Drawing:21-0078 (PDF) Land Pattern: 90-0176 (PDF) Use pkgcode/variation: K8SN-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX6368LKA29+			Active	SOT;8 pin;9 mm² Outline Drawing:21-0078 (PDF) Land Pattern: 90-0176 (PDF) Use pkgcode/variation: K8SN+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX6368LKA29+T			Active	SOT;8 pin;9 mm² Outline Drawing:21-0078 (PDF) Land Pattern: 90-0176 (PDF) Use pkgcode/variation: K8SN+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX6368LKA29-T			Active	SOT;8 pin;9 mm² Outline Drawing:21-0078 (PDF) Land Pattern: 90-0176 (PDF) Use pkgcode/variation: K8SN-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX6368LKA31+T			Active	SOT;8 pin;9 mm² Outline Drawing:21-0078 (PDF) Land Pattern: 90-0176 (PDF) Use pkgcode/variation: K8SN+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX6368LKA31-T			Active	SOT;8 pin;9 mm² Outline Drawing:21-0078 (PDF) Land Pattern: 90-0176 (PDF) Use pkgcode/variation: K8SN-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX6368LKA44+T			Active	SOT;8 pin;9 mm² Outline Drawing:21-0078 (PDF) Land Pattern: 90-0176 (PDF) Use pkgcode/variation: K8SN+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX6368LKA44-T			Active	SOT;8 pin;9 mm² Outline Drawing:21-0078 (PDF) Land Pattern: 90-0176 (PDF) Use pkgcode/variation: K8SN-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX6368LKA46+			Active	SOT;8 pin;9 mm² Outline Drawing:21-0078 (PDF) Land Pattern: 90-0176 (PDF) Use pkgcode/variation: K8SN+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
MAX6368LKA46+T			Active	SOT;8 pin;9 mm² Outline Drawing:21-0078 (PDF) Land Pattern: 90-0176 (PDF) Use pkgcode/variation: K8SN+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX6368LKA46-T			Active	SOT;8 pin;9 mm² Outline Drawing:21-0078 (PDF) Land Pattern: 90-0176 (PDF) Use pkgcode/variation: K8SN-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX6368PKA23+T			Active	SOT;8 pin;9 mm² Outline Drawing:21-0078 (PDF) Land Pattern: 90-0176 (PDF) Use pkgcode/variation: K8SN+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX6368PKA23-T			Active	SOT;8 pin;9 mm² Outline Drawing:21-0078 (PDF) Land Pattern: 90-0176 (PDF) Use pkgcode/variation: K8SN-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX6368PKA26+			Active	SOT;8 pin;9 mm² Outline Drawing:21-0078 (PDF) Land Pattern: 90-0176 (PDF) Use pkgcode/variation: K8SN+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX6368PKA26+T			Active	SOT;8 pin;9 mm² Outline Drawing:21-0078 (PDF) Land Pattern: 90-0176 (PDF) Use pkgcode/variation: K8SN+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX6368PKA26-T			Active	SOT;8 pin;9 mm² Outline Drawing:21-0078 (PDF) Land Pattern: 90-0176 (PDF) Use pkgcode/variation: K8SN-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX6368PKA29+			Active	SOT;8 pin;9 mm² Outline Drawing:21-0078 (PDF) Land Pattern: 90-0176 (PDF) Use pkgcode/variation: K8SN+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX6368PKA29+T			Active	SOT;8 pin;9 mm² Outline Drawing:21-0078 (PDF) Land Pattern: 90-0176 (PDF) Use pkgcode/variation: K8SN+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX6368PKA29-T			Active	SOT;8 pin;9 mm² Outline Drawing:21-0078 (PDF) Land Pattern: 90-0176 (PDF) Use pkgcode/variation: K8SN-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
Part Number	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX6368PKA31+			Active	SOT;8 pin;9 mm² Outline Drawing:21-0078 (PDF) Land Pattern: 90-0176 (PDF) Use pkgcode/variation: K8SN+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX6368PKA31+T			Active	SOT;8 pin;9 mm² Outline Drawing:21-0078 (PDF) Land Pattern: 90-0176 (PDF) Use pkgcode/variation: K8SN+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX6368PKA31-T			Active	SOT;8 pin;9 mm² Outline Drawing:21-0078 (PDF) Land Pattern: 90-0176 (PDF) Use pkgcode/variation: K8SN-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX6368PKA44+			Active	SOT;8 pin;9 mm² Outline Drawing:21-0078 (PDF) Land Pattern: 90-0176 (PDF) Use pkgcode/variation: K8SN+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX6368PKA44+T			Active	SOT;8 pin;9 mm² Outline Drawing:21-0078 (PDF) Land Pattern: 90-0176 (PDF) Use pkgcode/variation: K8SN+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX6368PKA44-T			Active	SOT;8 pin;9 mm² Outline Drawing:21-0078 (PDF) Land Pattern: 90-0176 (PDF) Use pkgcode/variation: K8SN-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX6368PKA46+			Active	SOT;8 pin;9 mm² Outline Drawing:21-0078 (PDF) Land Pattern: 90-0176 (PDF) Use pkgcode/variation: K8SN+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX6368PKA46+T			Active	SOT;8 pin;9 mm² Outline Drawing:21-0078 (PDF) Land Pattern: 90-0176 (PDF) Use pkgcode/variation: K8SN+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX6368PKA46-T			Active	SOT;8 pin;9 mm² Outline Drawing:21-0078 (PDF) Land Pattern: 90-0176 (PDF) Use pkgcode/variation: K8SN-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis

Devices: 151-179 / 179

<-- 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.

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More Information

Topmark Coding	MAX6365
Topmark Coding	MAX6366
Topmark Coding	MAX6367
Topmark Coding	MAX6368
New Product Press Release	[ 2000-05-04 ]

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Document Ref.: 19-1658 Rev 5; 2011-10-21
This page last modified: 2011-10-21

SOT23, Low-Power µP Supervisory Circuits with Battery Backup and Chip-Enable Gating

Status

Description

Data Sheet

Key Features

Applications/Uses

Key Specifications:

Diagram

Product Guides

Reliability Reports

Software/Models

Ordering Information

Similar Products by Function

Similar Products by Application

More Information

Didn't Find What You Need?

Information Index

Overview

Technical Documents

Ordering Info

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