X40430S14-CT1 datasheet, PDF - EEWORLD Datasheet

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X40430S14-CT1: DescriptionIC volt mon trpl eeprom 14-soic; Categorysemiconductor Power management; File Size397KB，26 Pages; ManufacturerIntersil ( Renesas ); Websitehttp://www.intersil.com/cda/home/

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X40430S14-CT1 Overview

IC volt mon trpl eeprom 14-soic

X40430S14-CT1 Parametric

Parameter Name	Attribute value
Datasheets
X40430, X40431, X40434, X40435
Product Photos
14-SOIC,M14
Standard Package	2,500
Category	Integrated Circuits (ICs)
Family	PMIC - Supervisors
Packaging	Tape & Reel (TR)
Type	Multi-Voltage Supervis
Number of Voltages Monitored	3
Outpu	Open Drain, Push-Pull
Rese	Active High/Active Low
Reset Timeou	Adjustable/Selectable
Voltage - Threshold	1.7V, 2.2V, 2.9V
Operating Temperature	0°C ~ 70°C
Mounting Type	Surface Mou
Package / Case	14-SOIC (0.154", 3.90mm Width)
Supplier Device Package	14-SOICN

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X40430, X40431, X40434, X40435

4Kbit EEPROM

Data Sheet

May 24, 2006

FN8251.1

Triple Voltage Monitor with Integrated

CPU Supervisor

FEATURES

• Monitoring voltages: 5V to 9V

• Independent core voltage monitor

• Triple voltage detection and reset assertion

—Standard reset threshold settings. See selec-

tion table on page 2.

—Adjust low voltage reset threshold voltages

using special programming sequence

—Reset signal valid to V

= 1V

—Monitor three separate voltages

• Fault detection register

• Selectable power-on reset timeout

(0.05s, 0.2s, 0.4s, 0.8s)

• Selectable watchdog timer interval

(25ms, 200ms, 1.4s or off)

• Debounced manual reset input

• Low power CMOS

—25µA typical standby current, watchdog on

—6µA typical standby current, watchdog off

• Memory security

• 4Kbits of EEPROM

—16 byte page write mode

—5ms write cycle time (typical)

• Built-in inadvertent write protection

—Power-up/power-down protection circuitry

—Block lock protect 0, or 1/2, of EEPROM

• 400kHz 2-wire interface

• 2.7V to 5.5V power supply operation

• Available packages

—14 Ld SOIC, TSSOP

• Pb-free plus anneal available (RoHS compliant)

APPLICATIONS

• Communication equipment

—Routers, hubs, switches

—Disk arrays, network storage

• Industrial systems

—Process control

—Intelligent instrumentation

• Computer systems

—Computers

—Network servers

DESCRIPTION

The X40430, X40431, X40434, X40435 combines

power-on reset control, watchdog timer, supply voltage

supervision, second and third voltage supervision,

manual reset, and Block Lock

™

protect serial EEPROM

in one package. This combination lowers system cost,

reduces board space requirements, and increases

reliability.

Applying voltage to V

activates the power-on reset

circuit which holds RESET/RESET active for a period of

time. This allows the power supply and system oscilla-

tor to stabilize before the processor can execute code.

Low V

detection circuitry protects the user’s system

from low voltage conditions, resetting the system

when V

falls below the minimum V

TRIP1

point.

RESET/RESET is active until V

returns to proper

operating level and stabilizes. A second and third volt-

age monitor circuit tracks the unregulated supply to

provide a power fail warning or monitors different

power supply voltage. Three common low voltage

combinations are available. However, Intersil’s unique

circuits allows the threshold for either voltage monitor

to be reprogrammed to meet specific system level

requirements or to fine-tune the threshold for applica-

tions requiring higher precision.

A manual reset input provides debounce circuitry for

minimum reset component count.

The Watchdog Timer provides an independent protec-

tion mechanism for microcontrollers. When the micro-

controller fails to restart a timer within a selectable

time out interval, the device activates the WDO signal.

The user selects the interval from three preset values.

Once selected, the interval does not change, even

after cycling the power.

The memory portion of the device is a CMOS Serial

EEPROM array with Intersil’s Block Lock protection.

The array is internally organized as x 8. The device

features a 2-wire interface and software protocol

allowing operation on an I

C bus.

The device utilizes Intersil’s proprietary Direct Write

™

cell, providing a minimum endurance of 100,000

cycles and a minimum data retention of 100 years.

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

1-888-INTERSIL or 1-888-468-3774

Intersil (and design) is a registered trademark of Intersil Americas Inc.

All other trademarks mentioned are the property of their respective owners.

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