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參數資料
| 型號： | ST24W08B3TR |
| 廠商： | 意法半導體 |
| 英文描述： | Pulse Width Modulation (PWM) Controller IC; Topology:Flyback, Forward; Control Mode:Current; Number of PWM Outputs:1; Input Voltage Primary Min:15V; Input Voltage Primary Max:200V; Duty Cycle Max:50% |
| 中文描述： | 8千位串行I2C總線的EEPROM與用戶定義的塊寫保護 |
| 文件頁數： | 9/16頁 |
| 文件大?。?/td> | 125K |
| 代理商： | ST24W08B3TR |
AI01121B
3FFh
b7
b2
X
X
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 (t
W
) 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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相關代理商/技術參數 |
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| ST24W08B5 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:I2C Serial EEPROM |
| ST24W08B5TR | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:8 Kbit Serial I2C Bus EEPROM with User-Defined Block Write Protection |
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| ST24W08B6TR | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:8 Kbit Serial I2C Bus EEPROM with User-Defined Block Write Protection |
| ST24W08M1 | 功能描述:電可擦除可編程只讀存儲器 RO 511-M24C08-MN6 SO-8 8K SER 電可擦除可編程只讀存儲器 RoHS:否 制造商:Atmel 存儲容量:2 Kbit 組織:256 B x 8 數據保留:100 yr 最大時鐘頻率:1000 KHz 最大工作電流:6 uA 工作電源電壓:1.7 V to 5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 |
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