X5325V14Z-T datasheet, PDF - EEWORLD Datasheet

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X5325V14Z-T: DescriptionIC,SERIAL EEPROM,4KX8,CMOS,TSSOP,14PIN,PLASTIC; CategoryPower/power management The power supply circuit; File Size342KB，20 Pages; ManufacturerIntersil ( Renesas ); Websitehttp://www.intersil.com/cda/home/; Environmental Compliance

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X5325V14Z-T Overview

IC,SERIAL EEPROM,4KX8,CMOS,TSSOP,14PIN,PLASTIC

X5325V14Z-T Parametric

Parameter Name	Attribute value
Is it lead-free?	Lead free
Is it Rohs certified?	conform to
Objectid	1126057879
package instruction	,
Reach Compliance Code	compliant
ECCN code	EAR99
JESD-609 code	e3
Humidity sensitivity level	1
Peak Reflow Temperature (Celsius)	225
Terminal surface	MATTE TIN
Maximum time at peak reflow temperature	NOT SPECIFIED

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X5323, X5325

(Replaces X25323, X25325)

Data Sheet

June 30, 2008

FN8131.2

CPU Supervisor with 32kBit SPI EEPROM

These devices combine four popular functions, Power-on

Reset Control, Watchdog Timer, Supply Voltage Supervision,

and Block Lock Protect Serial EEPROM Memory in one

package. This combination lowers system cost, reduces

board space requirements, and increases reliability.

Applying power to the device activates the power-on reset

circuit which holds RESET/RESET active for a period of

time. This allows the power supply and oscillator to stabilize

before the processor can execute code.

The Watchdog Timer provides an independent protection

mechanism for microcontrollers. When the microcontroller

fails to restart a timer within a selectable time out interval,

the device activates the RESET/RESET signal. The user

selects the interval from three preset values. Once selected,

the interval does not change, even after cycling the power.

The device’s low V

detection circuitry protects the user’s

system from low voltage conditions, resetting the system

when V

falls below the minimum V

trip point.

RESET/RESET is asserted until V

returns to proper

operating level and stabilizes. Five industry standard V

TRIP

thresholds are available, however, Intersil’s unique circuits

allow the threshold to be reprogrammed to meet custom

requirements or to fine-tune the threshold for applications

requiring higher precision.

Features

• Selectable watchdog timer

• Low V

detection and reset assertion

- Five standard reset threshold voltages

- Re-program low V

reset threshold voltage using

special programming sequence

- Reset signal valid to V

= 1V

• Determine watchdog or low voltage reset with a volatile

flag bit

• Long battery life with low power consumption

- <50µA max standby current, watchdog on

- <1µA max standby current, watchdog off

- <400µA max active current during read

• 32kbits of EEPROM

• Built-in inadvertent write protection

- Power-up/power-down protection circuitry

- Protect 0, 1/4, 1/2 or all of EEPROM array with Block

Lock

™

protection

- In circuit programmable ROM mode

• 2MHz SPI interface modes (0,0 and 1,1)

• Minimize EEPROM programming time

- 32-byte page write mode

- Self-timed write cycle

- 5ms write cycle time (typical)

• 2.7V to 5.5V and 4.5V to 5.5V power supply

operation

• Available packages

- 14 Ld TSSOP, 8 Ld SOIC, 8 Ld PDIP

• Pb-free (RoHS compliant)

Block Diagram

WATCHDOG TRANSITION

DETECTOR

SCK

CS/WDI

DATA

COMMAND

DECODE AND

CONTROL

LOGIC

THRESHOLD

RESET LOGIC

PROTECT LOGIC

RESET/RESET

STATUS

8kBITS

16kBITS

EEPROM ARRAY

RESET AND

WATCHDOG

TIMEBASE

X5323 = RESET

X5325 = RESET

WATCHDOG

TIMER RESET

TRIP

POWER-ON AND

LOW VOLTAGE

RESET

GENERATION

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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