Datasheet > X5325S8Z-4.5A

X5325S8Z-4.5A

更新时间： 2024-11-25 22:41:23

品牌	Logo	应用领域
英特矽尔 - INTERSIL		监控可编程只读存储器电动程控只读存储器电可擦编程只读存储器
页数	文件大小	规格书
21页	359K
描述
CPU Supervisor with 32Kb SPI EEPROM

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中文翻译

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数据手册
替代型号

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X5325S8Z-4.5A 数据手册

X5323, X5325

(Replaces X25323, X25325)

Data Sheet

October 27, 2005

FN8131.1

DESCRIPTION

CPU Supervisor with 32Kb 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.

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

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 oscilla-

tor to stabilize before the processor can execute code.

—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

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

RESET/RESET signal. The user selects the interval

from three preset values. Once selected, the interval

does not change, even after cycling the power.

• 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

The device’s low V

detection circuitry protects the

—In circuit programmable ROM mode

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

• Minimize EEPROM programming time

—32-byte page write mode

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 stan-

dard V thresholds are available, however, Intersil’s

—Self-timed write cycle

TRIP

—5ms write cycle time (typical)

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

operation

unique circuits allow the threshold to be reprogrammed

to meet custom requirements or to fine-tune the thresh-

old for applications requiring higher precision.

• Available packages

—14 Ld TSSOP, 8 Ld SOIC, 8 Ld PDIP

• Pb-free plus anneal available (RoHS compliant)

BLOCK DIAGRAM

Watchdog Transition

Detector

Watchdog

Timer Reset

Protect Logic

RESET/RESET

X5323 = RESET

Data

Status

Command

Decode &

Control

Reset &

Watchdog

Timebase

X5325 = RESET

SCK

8Kbits

CS/WDI

Logic

V_CCThreshold

Reset Logic

16Kbits

Power-on and

Low Voltage

Reset

Generation

TRIP

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.

12 3 4 5 6 7...21

中文翻译

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X5325S8Z-4.5A 替代型号

型号	品牌	替代类型	描述	数据表
X5325S8-4.5A	INTERSIL	完全替代	CPU Supervisor with 32Kb SPI EEPROM

与X5325S8Z-4.5A相关器件

型号	品牌	获取价格	描述	数据表
X5325S8Z-4.5A-T1	RENESAS	获取价格	IC,SERIAL EEPROM,4KX8,CMOS,SOP,8PIN,PLASTIC
X5325S8Z-T	RENESAS	获取价格	IC,SERIAL EEPROM,4KX8,CMOS,SOP,8PIN,PLASTIC
X5325V14	INTERSIL	获取价格	CPU Supervisor with 32Kb SPI EEPROM
X5325V14-1.8	ETC	获取价格	SPI Serial EEPROM with Supervisory Features
X5325V14-2.7	INTERSIL	获取价格	CPU Supervisor with 32Kb SPI EEPROM
X5325V14-2.7A	RENESAS	获取价格	1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO14, PLASTIC, TSSOP-14
X5325V14-2.7A	XICOR	获取价格	Power Supply Management Circuit, Adjustable, 1 Channel, PDSO14, PLASTIC, TSSOP-14
X5325V14-2.7A	INTERSIL	获取价格	CPU Supervisor with 32Kb SPI EEPROM
X5325V14-2.7A-T1	RENESAS	获取价格	IC,SERIAL EEPROM,4KX8,CMOS,TSSOP,14PIN,PLASTIC
X5325V14-4.5A	INTERSIL	获取价格	CPU Supervisor with 32Kb SPI EEPROM

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