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參數(shù)資料
| 型號： | M24M01 |
| 廠商： | 意法半導體 |
| 英文描述： | 1 Mbit Serial IC Bus EEPROM |
| 中文描述： | 1兆位串行IC總線的EEPROM |
| 文件頁數(shù)： | 6/19頁 |
| 文件大小： | 120K |
| 代理商： | M24M01 |
M24M01
6/19
Figure 6. Write Mode Sequences with WC=1 (data write inhibited)
Write Operations
Following a Start condition the bus master sends
a Device Select Code with the RW bit reset to 0.
The device acknowledges this, as shown in Figure
7, and waits for two address bytes. The device re-
sponds to each address byte with an acknowledge
bit, and then waits for the data byte.
Writing to the memory may be inhibited if Write
Control (WC) is driven High. Any Write instruction
with Write Control (WC) driven High (during a pe-
riod of time from the Start condition until the end of
the two address bytes) will not modify the memory
contents, and the accompanying data bytes are
not acknowledged, as shown in Figure 6.
Each data byte in the memory has a 17-bit ad-
dress. The most significant bit, A16, is sent with
the Device Select Code, and the remaining bits,
A15-A0, in the two address bytes. The Most Sig-
nificant Byte is sent first, followed by the Least Sig-
nificant Byte. Bits A16 to A0 form the address of
the byte in memory.
When the bus master generates a Stop condition
immediately after the Ack bit (in the “10
th
bit” time
slot), either at the end of a Byte Write or a Page
Write, the internal memory Write cycle is triggered.
A Stop condition at any other time slot does not
trigger the internal Write cycle.
During the internal Write cycle, Serial Data (SDA)
is disabled internally, and the device does not re-
spond to any requests.
Byte Write
After the Device Select code and the address
bytes, the bus master sends one data byte. If the
addressed location is Write-protected, by Write
Control (WC) being driven High, the device replies
with NoAck, and the location is not modified. If, in-
stead, the addressed location is not Write-protect-
ed, the device replies with Ack. The bus master
S
S
BYTE WRITE
DEV SEL
BYTE ADDR
BYTE ADDR
DATA IN
WC
S
PAGE WRITE
DEV SEL
BYTE ADDR
BYTE ADDR
DATA IN 1
WC
DATA IN 2
AI01120C
PAGE WRITE
(cont'd)
WC (cont'd)
S
DATA IN N
ACK
ACK
ACK
NO ACK
R/W
ACK
ACK
ACK
NO ACK
R/W
NO ACK
NO ACK
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| M24M01-DF_12 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:1-Mbit serial I?2C bus EEPROM |
| M24M01-DFCS6TP/K | 功能描述:電可擦除可編程只讀存儲器 1Mb serial IAC bus 1 MHz 1.7 to 5.5V RoHS:否 制造商:Atmel 存儲容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)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 |
| M24M01-DFDW6TP | 制造商:STMicroelectronics 功能描述:E-EPROM |
| M24M01-DFMN6TP | 功能描述:電可擦除可編程只讀存儲器 1-Mbit I2C EEProm 256kB 1.7V to 5.5V RoHS:否 制造商:Atmel 存儲容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)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 |
| M24M01-DWDW3TP/K | 功能描述:EEPROM I2C 1MB 8TSSOP 制造商:stmicroelectronics 系列:- 包裝:剪切帶（CT） 零件狀態(tài):有效 格式 - 存儲器:EEPROMs - 串行 存儲器類型:EEPROM 存儲容量:1M（128K x 8） 速度:1MHz 接口:I2C，2 線串口 電壓 - 電源:2.5 V ~ 5.5 V 工作溫度:-40°C ~ 125°C（TA） 封裝/外殼:8-TSSOP（0.173"，4.40mm 寬） 供應商器件封裝:8-TSSOP 標準包裝:1 |
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