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CAT34C02HU4IGT4A PDF预览

CAT34C02HU4IGT4A

更新时间: 2024-01-10 05:52:02
品牌 Logo 应用领域
安森美 - ONSEMI 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时钟双倍数据速率光电二极管内存集成电路
页数 文件大小 规格书
17页 229K
描述
EEPROM Serial 2-Kb I2C forDDR2 DIMM SPD

CAT34C02HU4IGT4A 技术参数

是否无铅: 不含铅生命周期:Active
包装说明:UDFN-8针数:8
Reach Compliance Code:compliantFactory Lead Time:1 week
风险等级:1.21其他特性:100 YEAR DATA RETENTION
最大时钟频率 (fCLK):0.4 MHz数据保留时间-最小值:100
耐久性:1000000 Write/Erase CyclesI2C控制字节:1010DDDR
JESD-30 代码:R-PDSO-N8JESD-609代码:e4
长度:3 mm内存密度:256 bit
内存集成电路类型:EEPROM内存宽度:16
湿度敏感等级:1功能数量:1
端子数量:8字数:16 words
字数代码:16工作模式:SYNCHRONOUS
最高工作温度:85 °C最低工作温度:-40 °C
组织:16X16封装主体材料:PLASTIC/EPOXY
封装代码:HVSON封装等效代码:SOLCC8,.11,20
封装形状:RECTANGULAR封装形式:SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE
并行/串行:SERIAL峰值回流温度(摄氏度):NOT SPECIFIED
电源:1.8/5 V认证状态:Not Qualified
座面最大高度:0.55 mm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:0.002 mA最大供电电压 (Vsup):5.5 V
最小供电电压 (Vsup):1.7 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:Nickel/Palladium/Gold (Ni/Pd/Au)
端子形式:NO LEAD端子节距:0.5 mm
端子位置:DUAL处于峰值回流温度下的最长时间:NOT SPECIFIED
宽度:2 mm最长写入周期时间 (tWC):5 ms
写保护:HARDWARE/SOFTWAREBase Number Matches:1

CAT34C02HU4IGT4A 数据手册

 浏览型号CAT34C02HU4IGT4A的Datasheet PDF文件第2页浏览型号CAT34C02HU4IGT4A的Datasheet PDF文件第3页浏览型号CAT34C02HU4IGT4A的Datasheet PDF文件第4页浏览型号CAT34C02HU4IGT4A的Datasheet PDF文件第6页浏览型号CAT34C02HU4IGT4A的Datasheet PDF文件第7页浏览型号CAT34C02HU4IGT4A的Datasheet PDF文件第8页 
CAT34C02  
1
0
1
0
A
2
A
1
A
0
R/W  
DEVICE ADDRESS  
Figure 3. Slave Address Bits  
BUS RELEASE DELAY (TRANSMITTER)  
BUS RELEASE DELAY  
(RECEIVER)  
SCL FROM  
MASTER  
1
8
9
DATA OUTPUT  
FROM TRANSMITTER  
DATA OUTPUT  
FROM RECEIVER  
ACK SETUP (t  
)
SU:DAT  
START  
ACK DELAY (t  
)
AA  
Figure 4. Acknowledge Timing  
t
t
F
t
R
HIGH  
t
t
LOW  
LOW  
SCL  
t
t
HD:DAT  
SU:STA  
t
t
t
HD:STA  
SU:DAT  
SU:STO  
SDA IN  
t
BUF  
t
AA  
t
DH  
SDA OUT  
Figure 5. Bus Timing  
Write Operations  
Byte Write  
The internal byte address counter is automatically  
incremented after each data byte is loaded. If the Master  
transmits more than 16 data bytes, then earlier bytes will be  
overwritten by later bytes in a ‘wrap−around’ fashion  
(within the selected page). The internal Write cycle starts  
immediately following the STOP.  
In Byte Write mode the Master sends a START, followed  
by Slave address, byte address and data to be written  
(Figure 6). The Slave acknowledges all 3 bytes, and the  
Master then follows up with a STOP, which in turn starts the  
internal Write operation (Figure 7). During internal Write,  
the Slave will not acknowledge any Read or Write request  
from the Master.  
Acknowledge Polling  
Acknowledge polling can be used to determine if the  
CAT34C02 is busy writing or is ready to accept commands.  
Polling is implemented by interrogating the device with a  
‘Selective Read’ command (see READ OPERATIONS).  
The CAT34C02 will not acknowledge the Slave address,  
as long as internal Write is in progress.  
Page Write  
The CAT34C02 contains 256 bytes of data, arranged in 16  
pages of 16 bytes each. A page is selected by the 4 most  
significant bits of the address byte following the Slave  
address, while the 4 least significant bits point to the byte  
within the page. Up to 16 bytes can be written in one Write  
cycle (Figure 8).  
Delivery State  
The CAT34C02 is shipped ‘unprotected’, i.e. neither SWP  
flag is set. The entire 2 kb memory is erased, i.e. all bytes are  
FFh.  
www.onsemi.com  
5

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