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X1243S8I PDF预览

X1243S8I

更新时间: 2024-01-09 06:16:38
品牌 Logo 应用领域
XICOR 计时器或实时时钟微控制器和处理器外围集成电路光电二极管闹钟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
18页 94K
描述
Real Time Clock/Calendar/Alarm with EEPROM

X1243S8I 技术参数

是否无铅: 含铅是否Rohs认证: 不符合
生命周期:Obsolete零件包装代码:SOIC
包装说明:PLASTIC, SOIC-8针数:8
Reach Compliance Code:not_compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.81
最大时钟频率:0.032 MHz信息访问方法:I2C
中断能力:YJESD-30 代码:R-PDSO-G8
JESD-609代码:e0长度:4.9 mm
湿度敏感等级:1端子数量:8
计时器数量:1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封装等效代码:SOP8,.25
封装形状:RECTANGULAR封装形式:SMALL OUTLINE
峰值回流温度(摄氏度):NOT SPECIFIED电源:3/5 V
认证状态:Not Qualified座面最大高度:1.75 mm
子类别:Timer or RTC最大供电电压:5.5 V
最小供电电压:2.7 V标称供电电压:5 V
表面贴装:YES技术:CMOS
温度等级:INDUSTRIAL端子面层:TIN LEAD
端子形式:GULL WING端子节距:1.27 mm
端子位置:DUAL最短时间:SECONDS
处于峰值回流温度下的最长时间:NOT SPECIFIED易失性:YES
宽度:3.9 mmuPs/uCs/外围集成电路类型:TIMER, REAL TIME CLOCK
Base Number Matches:1

X1243S8I 数据手册

 浏览型号X1243S8I的Datasheet PDF文件第9页浏览型号X1243S8I的Datasheet PDF文件第10页浏览型号X1243S8I的Datasheet PDF文件第11页浏览型号X1243S8I的Datasheet PDF文件第13页浏览型号X1243S8I的Datasheet PDF文件第14页浏览型号X1243S8I的Datasheet PDF文件第15页 
X1243  
DEVICE ADDRESSING  
Following the Slave Byte is a two byte word address.  
The word address is either supplied by the master  
device or obtained from an internal counter. On power  
up the internal address counter is set to address 0h,  
so a current address read of the EEPROM array starts  
at address 0. When required, as part of a random  
read, the master device must supply the 2 Word  
Address Bytes.  
Following a start condition, the master must output a  
Slave Address Byte. The first four bits of the Slave  
Address Byte specify access to the EEPROM array or  
to the CCR. Slave bits ‘1010’ access the EEPROM  
array. Slave bits ‘1101’ access the CCR.  
Bit 3 through Bit 1 of the slave byte specify the device  
select bits. These are set to ‘111’.  
In a random read operation, the slave byte in the  
“dummy write” portion must match the slave byte in  
the “read” section. That is if the random read is from  
the array the slave byte must be ‘1010111x’ in both  
instances. Similarly, for a random read of the Clock/  
Control Registers, the slave byte must be ‘1101111x’  
in both places.  
The last bit of the Slave Address Byte defines the  
operation to be performed. When this R/W bit is a one,  
then a read operation is selected. A zero selects a  
write operation. Refer to Figure 12.  
After loading the entire Slave Address Byte from the  
SDA bus, the device compares the device identifier  
and device select bits with ‘1010111’ or ‘1101111’.  
Upon a correct compare, the device outputs an  
acknowledge on the SDA line.  
S
Slave  
Address  
A
C
K
A
C
K
A
C
K
Signals from  
the Master  
t
o
p
SDA Bus  
1
A
C
K
Signals from  
the Slave  
Data  
(2)  
Data  
(n-1)  
Data  
(1)  
Data  
(n)  
(n is any integer greater than 1)  
Figure 12. Sequential Read Sequence  
12  

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