Datasheet > X4643S8I

X4643S8I

更新时间： 2024-02-23 17:56:42

品牌	Logo	应用领域
XICOR		光电二极管
页数	文件大小	规格书
22页	507K
描述
Power Supply Management Circuit, Adjustable, 1 Channel, CMOS, PDSO8, PLASTIC, SOIC-8

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中文翻译

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技术参数
数据手册

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X4643S8I 技术参数

是否Rohs认证：	不符合	生命周期：	Transferred
包装说明：	PLASTIC, SOIC-8	Reach Compliance Code：	unknown
风险等级：	5.76	Is Samacsys：	N
可调阈值：	YES	模拟集成电路 - 其他类型：	POWER SUPPLY MANAGEMENT CIRCUIT
JESD-30 代码：	R-PDSO-G8	JESD-609代码：	e0
长度：	4.9 mm	信道数量：	1
功能数量：	1	端子数量：	8
最高工作温度：	85 °C	最低工作温度：	-40 °C
封装主体材料：	PLASTIC/EPOXY	封装代码：	SOP
封装形状：	RECTANGULAR	封装形式：	SMALL OUTLINE
认证状态：	Not Qualified	座面最大高度：	1.75 mm
最大供电电压 (Vsup)：	5.5 V	最小供电电压 (Vsup)：	4.5 V
标称供电电压 (Vsup)：	5 V	表面贴装：	YES
技术：	CMOS	温度等级：	INDUSTRIAL
端子面层：	Tin/Lead (Sn/Pb)	端子形式：	GULL WING
端子节距：	1.27 mm	端子位置：	DUAL
宽度：	3.9 mm	Base Number Matches：	1

X4643S8I 数据手册

64K

8K x 8 Bit

X4643/5

CPU Supervisor with 64K EEPROM

DESCRIPTION

FEATURES

• Selectable watchdog timer

The X4643/5 combines four popular functions, Power-on

Reset Control, Watchdog Timer, Supply Voltage

Supervision, and Serial EEPROM Memory in one

package. This combination lowers system cost,

reduces board space requirements, and increases reli-

ability.

• Low V

detection and reset assertion

—Four standard reset threshold voltages

—Adjust low V reset threshold voltage using

special programming sequence

—Reset signal valid to V = 1V

• Low power CMOS

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.

—<20µA max standby current, watchdog on

—<1µA standby current, watchdog off

—3mA active current

• 64Kbits of EEPROM

—64-byte page write mode

—Self-timed write cycle

—5ms write cycle time (typical)

• Built-in inadvertent write protection

—Power-up/power-down protection circuitry

• 400kHz 2-wire interface

• 2.7V to 5.5V power supply operation

• Available packages

—8-lead SOIC

The Watchdog Timer provides an independent protection

mechanism for microcontrollers. When the microcon-

troller 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 set minimum V trip

—8-lead TSSOP

point. RESET/RESET is asserted until V

returns to

proper operating level and stabilizes. Four industry

BLOCK DIAGRAM

Watchdog Transition

Detector

Watchdog

Timer Reset

Protect Logic

RESET (X4643/5)

RESET (X4645)

Data

SDA

Status

EEPROM Array

Command

Reset &

Watchdog

Timebase

SCL

Decode &

Control

Logic

Threshold

Reset Logic

Power on and

Low Voltage

Reset

TRIP

Generation

Characteristics subject to change without notice. 1 of 22

REV 1.27 2/11/04

www.xicor.com

12 3 4 5 6 7...22

中文翻译

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与X4643S8I相关器件

型号	品牌	获取价格	描述	数据表
X4643S8I-2.7	INTERSIL	获取价格	CPU Supervidor with 64K EEPROM
X4643S8I-2.7A	INTERSIL	获取价格	CPU Supervidor with 64K EEPROM
X4643S8I-4.5A	INTERSIL	获取价格	CPU Supervidor with 64K EEPROM
X4643S8IZ-2.7A	RENESAS	获取价格	X4643S8IZ-2.7A
X4643S8Z	RENESAS	获取价格	X4643S8Z
X4643S8Z-2.7A	RENESAS	获取价格	X4643S8Z-2.7A
X4643S8Z-2.7AT1	RENESAS	获取价格	X4643S8Z-2.7AT1
X4643S8Z-4.5A	RENESAS	获取价格	X4643S8Z-4.5A
X4643V8	INTERSIL	获取价格	CPU Supervidor with 64K EEPROM
X4643V8	XICOR	获取价格	Power Supply Management Circuit, Adjustable, 1 Channel, CMOS, PDSO8, PLASTIC, TSSOP-8

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