欢迎访问ic37.com |
会员登录 免费注册
发布采购

CAT1163WI-25 参数 Datasheet PDF下载

CAT1163WI-25图片预览
型号: CAT1163WI-25
PDF下载: 下载PDF文件 查看货源
内容描述: 监控电路,带有I2C串行串行EEPROM CMOS ,精密复位控制器和看门狗定时器 [Supervisory Circuits with I2C Serial Serial CMOS EEPROM, Precision Reset Controller and Watchdog Timer]
分类和应用: 外围集成电路光电二极管监控控制器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
文件页数/大小: 14 页 / 151 K
品牌: CATALYST [ CATALYST SEMICONDUCTOR ]
 浏览型号CAT1163WI-25的Datasheet PDF文件第4页浏览型号CAT1163WI-25的Datasheet PDF文件第5页浏览型号CAT1163WI-25的Datasheet PDF文件第6页浏览型号CAT1163WI-25的Datasheet PDF文件第7页浏览型号CAT1163WI-25的Datasheet PDF文件第9页浏览型号CAT1163WI-25的Datasheet PDF文件第10页浏览型号CAT1163WI-25的Datasheet PDF文件第11页浏览型号CAT1163WI-25的Datasheet PDF文件第12页  
CAT1163  
Acknowledge  
receiving another acknowledge from the Slave, the  
Master device transmits the data to be written into the  
addressed memory location. The CAT1163 acknow–  
ledges once more and the Master generates the STOP  
condition. At this time, the device begins an internal  
programming cycle to non-volatile memory. While the  
cycle is in progress, the device will not respond to any  
request from the Master device.  
After a successful data transfer, each receiving  
device is required to generate an acknowledge. The  
acknowledging device pulls down the SDA line  
during the ninth clock cycle, signaling that it received  
the 8 bits of data.  
The CAT1163 responds with an acknowledge after  
receiving a START condition and its slave address.  
If the device has been selected along with a write  
operation, it responds with an acknowledge after  
receiving each 8-bit byte.  
Page Write  
The CAT1163 writes up to 16 bytes of data in a single  
write cycle, using the Page Write operation. The page  
write operation is initiated in the same manner as the  
byte write operation, however instead of terminating  
after the initial byte is transmitted, the Master is allowed  
to send up to 15 additional bytes. After each byte has  
been transmitted, the CAT1163 will respond with an  
acknowledge and internally increment the lower order  
address bits by one. The high order bits remain  
unchanged.  
When the CAT1163 begins a READ mode it  
transmits 8 bits of data, releases the SDA line and  
monitors the line for an acknowledge. Once it  
receives this acknowledge, the CAT1163 will  
continue to transmit data. If no acknowledge is sent  
by the Master, the device terminates data transmis-  
sion and waits for a STOP condition.  
If the Master transmits more than 16 bytes before  
sending the STOP condition, the address counter  
‘wraps around,’ and previously transmitted data will be  
overwritten.  
WRITE OPERATIONS  
Byte Write  
In the Byte Write mode, the Master device sends the  
START condition and the slave address information  
¯¯  
(with the R/W bit set to zero) to the Slave device.  
When all 16 bytes are received, and the STOP  
condition has been sent by the Master, the internal  
programming cycle begins. At this point, all received  
data is written to the CAT1163 in a single write cycle.  
After the Slave generates an acknowledge, the  
Master sends a 8-bit address that is to be written  
into the address pointers of the CAT1163. After  
Figure 7. Byte Write Timing  
S
T
A
R
T
S
T
O
P
BUS ACTIVITY:  
MASTER  
SLAVE  
ADDRESS  
BYTE  
ADDRESS  
DATA  
SDA LINE  
S
P
A
C
K
A
C
K
A
C
K
Figure 8. Page Write Timing  
S
T
A
R
T
S
T
O
P
BUS ACTIVITY:  
MASTER  
SLAVE  
ADDRESS  
BYTE  
ADDRESS (n)  
DATA n  
DATA n+1  
DATA n+15  
SDA LINE  
S
P
A
C
K
A
C
K
A
C
K
A
C
K
A
C
K
Doc. No. 3003 Rev. E  
8
© 2007 Catalyst Semiconductor, Inc.  
Characteristics subject to change without notice