參數(shù)資料
型號: X24C02
英文描述: Serial EEPROM(寫保護(hù)引腳,串行EEPROM)
中文描述: 串行EEPROM(寫保護(hù)引腳,串行EEPROM的)
文件頁數(shù): 8/17頁
文件大?。?/td> 130K
代理商: X24C02
X24C02
8
Sequential Read
Sequential Read can be initiated as either a current
address read or random access read. The first word is
transmitted as with the other modes, however, the
master now responds with an acknowledge, indicating it
requires additional data. The X24C02 continues to out-
put data for each acknowledge received. The master
terminates this transmission by issuing a stop condition,
omitting the ninth clock cycle acknowledge.
Figure 9. Sequential Read
Figure 10. Typical System Configuration
MASTER
TRANSMITTER/
RECEIVER
SLAVE
RECEIVER
SLAVE
TRANSMITTER/
RECEIVER
MASTER
TRANSMITTER
MASTER
TRANSMITTER/
RECEIVER
SDA
SCL
VCC
BUS ACTIVITY:
MASTER
SDA LINE
BUS ACTIVITY:
X24C02
SLAVE
ADDRESS
A
C
K
A
C
K
DATA n+x
S
T
O
P
P
DATA n
A
C
K
DATA n+1
A
C
K
DATA n+2
3838 FHD F15
3838 FHD F16
The data output is sequential, with the data from address
n followed by the data from n + 1. The address counter
for read operations increments all address bits, allowing
the entire memory contents to be serially read during
one operation. At the end of the address space (address
255), the counter “rolls over” to address 0 and the
X24C02 continues to output data for each acknowledge
received. Refer to Figure 9 for the address, acknowl-
edge and data transfer sequence.
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