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参数资料
| 型号： | ST25C08M1 |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | PROM |
| 英文描述： | 1K X 8 SPI BUS SERIAL EEPROM, PDSO8 |
| 封装： | 0.150 INCH, PLASTIC, SO-8 |
| 文件页数： | 16/16页 |
| 文件大小： | 124K |
| 代理商： | ST25C08M1 |
AI01121B
3FFh
b7
b2
XX
300h
Block 3
Block 0
Protect Flag
Enable = 0
Disable = 1
Page
pointer
b4
0
Figure 7. Memory Protection
of data, which are each acknowledged by the mem-
ory. After each byte is transfered, the internal byte
address counter (4 least significant bits only) is
incremented. The transfer is terminated by the
master generating a STOP condition. Care must be
taken to avoid address counter ’roll-over’ which
could result in data being overwritten. Note that, for
any write mode, the generation by the master of the
STOP condition starts the internal memory pro-
gram cycle. All inputs are disabled until the comple-
tion of this cycle and the memory will not respond
to any request.
Minimizing System Delays by Polling On ACK.
During the internal write cycle, the memory discon-
nects itself from the bus in order to copy the data
from the internal latches to the memory cells. The
maximum value of the write time (tW) is given in the
AC Characteristics table, since the typical time is
shorter, the time seen by the system may be re-
duced by an ACK polling sequence issued by the
master.
WRITE Cycle
in Progress
AI01099B
Next
Operation is
Addressing the
Memory
START Condition
DEVICE SELECT
with RW = 0
ACK
Returned
YES
NO
YES
NO
ReSTART
STOP
Proceed
WRITE Operation
Proceed
Random Address
READ Operation
Send
Byte Address
First byte of instruction
with RW = 0 already
decoded by ST24xxx
Figure 8. Write Cycle Polling using ACK
9/16
ST24/25C08, ST24/25W08
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| ST280C04C2L | 960 A, 400 V, SCR, TO-200AB |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ST25C08M1TR | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:8 Kbit Serial I2C Bus EEPROM with User-Defined Block Write Protection |
| ST25C08M3 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:I2C Serial EEPROM |
| ST25C08M3TR | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:8 Kbit Serial I2C Bus EEPROM with User-Defined Block Write Protection |
| ST25C08M5 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:I2C Serial EEPROM |
| ST25C08M5TR | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:8 Kbit Serial I2C Bus EEPROM with User-Defined Block Write Protection |
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