5秒后页面跳转
捷配首页

Datasheet > X4643S8I
X4643S8I PDF预览

X4643S8I

更新时间： 2024-01-05 05:29:50
品牌 Logo 应用领域
英特矽尔 - INTERSIL 光电二极管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 330K
描述
CPU Supervidor with 64K EEPROM

阅读下载

获取价格

X4643S8I 技术参数

是否Rohs认证： 符合生命周期：Obsolete
包装说明：SOP, SOP8,.25Reach Compliance Code：unknown
风险等级：5.84I2C控制字节：10100DDR
JESD-30 代码：R-PDSO-G8内存密度：65536 bit
内存集成电路类型：EEPROM内存宽度：8
端子数量：8字数：8192 words
字数代码：8000最高工作温度：70 °C
最低工作温度：组织：8KX8
封装主体材料：PLASTIC/EPOXY封装代码：SOP
封装等效代码：SOP8,.25封装形状：RECTANGULAR
封装形式：SMALL OUTLINE并行/串行：SERIAL
电源：5 V认证状态：Not Qualified
串行总线类型：I2C最大待机电流：0.000001 A
子类别：EEPROMs最大压摆率：0.003 mA
标称供电电压 (Vsup)：5 V表面贴装：YES
技术：CMOS温度等级：COMMERCIAL
端子形式：GULL WING端子节距：1.27 mm
端子位置：DUAL写保护：HARDWARE/SOFTWARE

X4643S8I 数据手册

 浏览型号X4643S8I的Datasheet PDF文件第1页浏览型号X4643S8I的Datasheet PDF文件第2页浏览型号X4643S8I的Datasheet PDF文件第4页浏览型号X4643S8I的Datasheet PDF文件第5页浏览型号X4643S8I的Datasheet PDF文件第6页浏览型号X4643S8I的Datasheet PDF文件第7页 
X4643, X4645  
PRINCIPLES OF OPERATION  
Power-On Reset  
WATCHDOG TIMER  
The Watchdog Timer circuit monitors the microprocessor  
activity by monitoring the SDA and SCL pins. The  
microprocessor must toggle the SDA pin HIGH to  
LOW periodically, while SCL is HIGH (this is a start bit)  
prior to the expiration of the watchdog time out period  
to prevent a RESET/RESET signal. The state of two  
nonvolatile control bits in the Status Register deter-  
mine the watchdog timer period. The microprocessor  
can change these watchdog bits, or they may be  
“locked” by tying the WP pin HIGH.  
Application of power to the X4643/5 activates a  
Power-on Reset Circuit that pulls the RESET/RESET  
pin active. This signal provides several benefits.  
– It prevents the system microprocessor from starting  
to operate with insufficient voltage.  
– It prevents the processor from operating prior to sta-  
bilization of the oscillator.  
– It allows time for an FPGA to download its configura-  
tion prior to initialization of the circuit.  
EEPROM INADVERTENT WRITE PROTECTION  
– It prevents communication to the EEPROM, greatly  
reducing the likelihood of data corruption on power-up.  
When RESET/RESET goes active as a result of a low  
voltage condition or Watchdog Timer Time Out, any in-  
progress communications are terminated. While  
RESET/RESET is active, no new communications are  
allowed and no nonvolatile write operation can start.  
Nonvolatile writes in-progress when RESET/RESET  
goes active are allowed to finish.  
When V  
exceeds the device V  
threshold value  
CC  
TRIP  
for  
200ms  
(nominal)  
the  
circuit  
releases  
RESET/RESET allowing the system to begin operation.  
LOW VOLTAGE MONITORING  
Additional protection mechanisms are provided with  
memory Block Lock and the Write Protect (WP) pin.  
These are discussed elsewhere in this document.  
During operation, the X4643/5 monitors the V level  
and asserts RESET/RESET if supply voltage falls  
CC  
below a preset minimum V  
. The RESET/RESET  
TRIP  
signal prevents the microprocessor from operating in a  
power fail or brownout condition. The RESET/RESET  
signal remains active until the voltage drops below 1V.  
V
THRESHOLD RESET PROCEDURE  
CC  
The X4643/5 is shipped with a standard V threshold  
(V  
operating and storage conditions. However, in applica-  
tions where the standard V is not exactly right, or if  
CC  
It also remains active until V  
returns and exceeds  
CC  
) voltage. This value will not change over normal  
TRIP  
V
for 200ms.  
TRIP  
TRIP  
higher precision is needed in the V  
value, the  
TRIP  
X4643/5 threshold may be adjusted. The procedure is  
described below, and uses the application of a nonvol-  
atile control signal.  
Figure 1. Set V  
Level Sequence (V = desired V values WEL bit set)  
TRIP  
TRIP  
CC  
VP = 12-15V  
WP  
0 1 2 3 4 5 6 7  
0 1 2 3 4 5 6 7  
0 1 2 3 4 5 6 7  
0 1 2 3 4 5 6 7  
SCL  
SDA  
A0h  
00h  
01h  
00h  
FN8123.0  
3
March 29, 2005  
1234567...21

下载PDF

与X4643S8I相关器件

型号 品牌 描述 获取价格 数据表
X4643S8I-2.7 INTERSIL CPU Supervidor with 64K EEPROM

获取价格
X4643S8I-2.7A INTERSIL CPU Supervidor with 64K EEPROM

获取价格
X4643S8I-4.5A INTERSIL CPU Supervidor with 64K EEPROM

获取价格
X4643S8IZ-2.7A RENESAS X4643S8IZ-2.7A

获取价格
X4643S8Z RENESAS X4643S8Z

获取价格
X4643S8Z-2.7A RENESAS X4643S8Z-2.7A

获取价格

与X4643S8I相关文章

您还可以找


热门产品
PCB打样/小批量
铝基板
BOM智能配单
PCBA制造
钣金
精密CNC
模具注塑
薄膜开关
精选活动
PCBA打样特惠
四六层板品质升级
铝基板品质升级
一体化电子制造
DFM下载
服务支持
企业认证
产品展示
工厂展示
工艺能力
积分商城
关于捷配
捷配简介
企业文化
公司动态
人才招聘
联系我们
帮助中心
下单流程
付款流程
开票流程
常见问题
全球PCB制造服务专线 400-613-0088

工作时间：9:00-21:00

CEO邮箱：ceo@jiepei.com

投诉邮箱：tousu@jiepei.com

捷配网-微信公众号 微信公众号
捷配网-微信公众号 抖音公众号
资质认证：
合作快递：
支付方式：
Copyright © 2024 Jiepei.com Inc. All Rights Reserved. 版权所有:杭州捷配信息科技有限公司 浙公网安备 33010502006866号 浙ICP备10014259号-119 营业执照ICP证