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參數(shù)資料
| 型號： | ST25C08M3TR |
| 廠商： | 意法半導(dǎo)體 |
| 元件分類： | DRAM |
| 英文描述： | 8 Kbit Serial I2C Bus EEPROM with User-Defined Block Write Protection |
| 中文描述： | 8千位串行I2C總線的EEPROM與用戶定義的塊寫保護(hù) |
| 文件頁數(shù)： | 9/16頁 |
| 文件大?。?/td> | 125K |
| 代理商： | ST25C08M3TR |
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
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ST25C08M5TR | Power Supply Controller IC; Package/Case:28-SSOP; Supply Voltage Max:5.5V; Leaded Process Compatible:No; Output Voltage Max:3.3V; Peak Reflow Compatible (260 C):No; Mounting Type:Surface Mount RoHS Compliant: No |
| ST25C08M6TR | Power Supply Controller IC; Package/Case:28-SSOP; Supply Voltage Max:5.5V; Leaded Process Compatible:No; Output Voltage Max:3.3V; Peak Reflow Compatible (260 C):No; Mounting Type:Surface Mount RoHS Compliant: No |
| ST25W08B1TR | 8 Kbit Serial I2C Bus EEPROM with User-Defined Block Write Protection |
| ST25W08B3TR | MOSFET, N POWERPAKMOSFET, N POWERPAK; Transistor type:MOSFET; Transistor polarity:N; Voltage, Vds max:150V; Case style:PowerPak SO-8; Current, Id cont:3A; Current, Idm pulse:2.4A; Power, Pd:1.9W; Resistance, Rds on:0.085R; SMD:1; |
| ST25W08B5TR | 8 Kbit Serial I2C Bus EEPROM with User-Defined Block Write Protection |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ST25C08M5 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:I2C Serial EEPROM |
| ST25C08M5TR | 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 |
| ST25C08M6 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:I2C Serial EEPROM |
| ST25C08M6TR | 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 |
| ST25C16 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:16 Kbit Serial I2C Bus EEPROM with User-Defined Block Write Protection |
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