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MAX6367HKA46+

Description
Analog Circuit,
CategoryAnalog mixed-signal IC    The signal circuit   
File Size529KB,15 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
Environmental Compliance  
Download Datasheet Parametric View All

MAX6367HKA46+ Overview

Analog Circuit,

MAX6367HKA46+ Parametric

Parameter NameAttribute value
Is it lead-free?Lead free
Is it Rohs certified?conform to
MakerMaxim
Reach Compliance Codecompliant
JESD-609 codee3
Terminal surfaceMatte Tin (Sn)
Base Number Matches1
19-1658; Rev 3; 12/05
SOT23, Low-Power µP Supervisory Circuits
with Battery Backup and Chip-Enable Gating
General Description
The MAX6365–MAX6368 supervisory circuits simplify
power-supply monitoring, battery-backup control func-
tions, 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:
1) Provide a µP reset output during V
CC
supply power-
up, power-down, and brownout conditions.
2) 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.
3) Provide memory write protection through internal
chip-enable gating during supply or processor faults.
4) 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 volt-
ages as low as 1.2V. The factory preset reset threshold
voltages range from 2.32V to 4.63V (see the
Ordering
Information).
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 the
Selector
Guide).
The MAX6365–MAX6368 are available in minia-
ture 8-pin SOT23 packages.
Features
Low +1.2V Operating Supply Voltage (V
CC
or V
BATT
)
Precision Monitoring of +5.0V, +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
RESET
Open-Drain
RESET
Open-Drain RESET
RESET/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
MAX6365–MAX6368
Ordering Information
PART*
MA X6 36 5
LKA_ _-T
MAX6365PKA_ _-T
MAX6365HKA_ _-T
MA X6 36 6
LKA_ _-T
MAX6366PKA_ _-T
MAX6366HKA_ _-T
MA X6 36 7
LKA_ _-T
MAX6367PKA_ _-T
MAX6367HKA_ _-T
MA X6 36 8
LKA_ _-T
MAX6368PKA_ _-T
MAX6368HKA_ _-T
TEMP RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN-
PACKAGE
8 SOT23-8
8 SOT23-8
8 SOT23-8
8 SOT23-8
8 SOT23-8
8 SOT23-8
8 SOT23-8
8 SOT23-8
8 SOT23-8
8 SOT23-8
8 SOT23-8
8 SOT23-8
Applications
Critical µP/µC Power
Monitoring
Fax Machines
Industrial Control
Computers/Controllers
Portable/Battery-
Powered Equipment
Set-Top Boxes
POS Equipment
Pin Configurations
TOP VIEW
RESET, RESET
CE IN
GND
1
2
8
7
CE OUT
BATT
OUT
V
CC
MAX6365
3
6
5
MR
4
SOT23
Pin Configurations continued at end of data sheet.
*These
parts offer a choice of reset threshold voltages. From the
Reset Threshold Ranges table, insert the desired threshold volt-
age code in the blank to complete the part number. SOT parts
come in tape-and-reel only and must be ordered in 2500-piece
increments. See Device Marking Codes for a complete parts list,
including SOT top marks and standard threshold versions. See
Selector Guide for a listing of device features.
Devices are available in both leaded and lead-free packaging.
Specify lead-free by replacing “-T” with “+T” when ordering.
Typical Operating Circuit appears at end of data sheet.
1
________________________________________________________________
Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
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