Datasheet > X5323S8IT1

X5323S8IT1

更新时间： 2024-11-09 03:48:51

品牌	Logo	应用领域
XICOR		光电二极管
页数	文件大小	规格书
21页	202K
描述
Power Supply Management Circuit, Adjustable, 1 Channel, PDSO8, PLASTIC, SOIC-8

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中文翻译

获取价格

数据手册

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X5323S8IT1 数据手册

Replaces X25323/X25325

X5323/X5325

CPU Supervisor with 32Kb SPI EEPROM

FEATURES

• Selectable watchdog timer

• Low V detection and reset assertion

DESCRIPTION

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.

—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

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.

• 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 & 1,1)

• Minimize EEPROM programming time

—32-byte page write mode

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.

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

—Self-timed write cycle

point. RESET/RESET is asserted until V

returns to

—5ms write cycle time (typical)

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

operation

• Available packages

—14-lead TSSOP, 8-lead SOIC

proper operating level and stabilizes. Five industry stan-

dard V thresholds are available, however, Xicor’s

TRIP

unique circuits allow the threshold to be reprogrammed

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

old for applications requiring higher precision.

BLOCK DIAGRAM

Watchdog Transition

Detector

Watchdog

Timer Reset

Protect Logic

RESET/RESET

Data

Status

X5323 = RESET

X5325 = RESET

Command

Decode &

Control

Reset &

Watchdog

Timebase

SCK

8Kbits

CS/WDI

Logic

Threshold

Reset Logic

16Kbits

Power On and

Low Voltage

Reset

Generation

TRIP

Characteristics subject to change without notice. 1 of 21

REV 1.1.2 11/13/01

www.xicor.com

12 3 4 5 6 7...21

中文翻译

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与X5323S8IT1相关器件

型号	品牌	获取价格	描述	数据表
X5323S8IZ	INTERSIL	获取价格	CPU Supervisor with 32Kb SPI EEPROM
X5323S8IZ-2.7	INTERSIL	获取价格	CPU Supervisor with 32Kb SPI EEPROM
X5323S8IZ-2.7A	INTERSIL	获取价格	CPU Supervisor with 32Kb SPI EEPROM
X5323S8IZ-2.7A-T	RENESAS	获取价格	1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO8, ROHS COMPLIANT, PLASTIC, SOIC-8
X5323S8IZ-2.7A-T1	RENESAS	获取价格	1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO8, ROHS COMPLIANT, PLASTIC, SOIC-8
X5323S8IZ-2.7-T	RENESAS	获取价格	IC,SERIAL EEPROM,4KX8,CMOS,SOP,8PIN,PLASTIC
X5323S8IZ-4.5A	INTERSIL	获取价格	CPU Supervisor with 32Kb SPI EEPROM
X5323S8IZ-4.5A-T	RENESAS	获取价格	IC,SERIAL EEPROM,4KX8,CMOS,SOP,8PIN,PLASTIC
X5323S8IZ-4.5A-T1	RENESAS	获取价格	1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO8, ROHS COMPLIANT, PLASTIC, SOIC-8
X5323S8IZ-T	RENESAS	获取价格	IC,SERIAL EEPROM,4KX8,CMOS,SOP,8PIN,PLASTIC

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