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參數(shù)資料
| 型號： | M24128-MN5T |
| 廠商： | 意法半導(dǎo)體 |
| 元件分類： | DRAM |
| 英文描述： | 256/128 Kbit Serial IC Bus EEPROM Without Chip Enable Lines |
| 中文描述： | 一百二十八分之二百五十六千位串行IC總線的EEPROM芯片使能線無 |
| 文件頁數(shù)： | 4/17頁 |
| 文件大?。?/td> | 135K |
| 代理商： | M24128-MN5T |
M24256, M24128
4/17
must be stable during the clock low-to-high transi-
tion, and the data must change onlywhen the SCL
line is low.
Memory Addressing
To start communication between the bus master
and the slave memory, the master must initiate a
START condition. Following this, the master sends
the 8-bit byte, shown in Table 3, on the SDA bus
line (most significant bit first). This consists of the
7-bit Device Select Code, and the 1-bit Read/Write
Designator (RW). The Device Select Code is fur-
ther subdivided into: a 4-bit Device Type Identifier,
and a 3-bit Chip Enable “Address” (0, 0, 0).
To address the memory array, the 4-bit Device
Type Identifier is 1010b.
The 8
th
bit is the RW bit. This is set to ‘1’ for read
and ‘0’ for write operations. If a match occurs on
the Device Select Code, the corresponding mem-
ory gives an acknowledgment on the SDA bus dur-
ing the 9
th
bit time. If the memory does not match
the Device Select Code, it deselects itself from the
bus, and goes into stand-by mode.
Figure 4. I
2
C Bus Protocol
SCL
SDA
SCL
SDA
SDA
START
Condition
SDA
Input
SDA
Change
AI00792B
STOP
Condition
1
2
3
7
8
9
MSB
ACK
START
Condition
SCL
1
2
3
7
8
9
MSB
ACK
STOP
Condition
Table 3. Device Select Code
1
Note: 1. The most significant bit, b7, is sent first.
Device Type Identifier
Chip Enable
RW
b7
b6
b5
b4
b3
b2
b1
b0
Device Select Code
1
0
1
0
0
0
0
RW
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| M24128-MN6 | 功能描述:電可擦除可編程只讀存儲器 5.5V 128K (16Kx8) 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(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 |
| M24128-MN6T | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:256/128 Kbit Serial IC Bus EEPROM Without Chip Enable Lines |
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| M24128-MW6T | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:256/128 Kbit Serial IC Bus EEPROM Without Chip Enable Lines |
| M24128S-FCU6T/T | 功能描述:IC EEPROM 128KBIT CSP 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:128K（16K x 8） 速度:400kHz 接口:I2C，2 線串口 電壓 - 電源:1.7 V ~ 5.5 V 工作溫度:-40°C ~ 85°C（TA） 封裝/外殼:4-XFBGA，WLCSP 供應(yīng)商器件封裝:4-WLCSP 標(biāo)準(zhǔn)包裝:1 |
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