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參數(shù)資料
| 型號： | M24C08-W |
| 廠商： | 意法半導(dǎo)體 |
| 元件分類： | DRAM |
| 英文描述： | The CAT24FC02 is a 2-kb Serial CMOS EEPROM internally organized as 256 words of 8 bits each |
| 中文描述： | 該CAT24FC02是一個2 KB的EEPROM的國內(nèi)256個8位每字舉辦的串行CMOS |
| 文件頁數(shù)： | 12/33頁 |
| 文件大小： | 183K |
| 代理商： | M24C08-W |
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Device operation
M24C16, M24C08, M24C04, M24C02, M24C01
12/33
3.5
Memory addressing
To start communication between the bus master and the slave device, the bus master must
initiate a Start condition. Following this, the bus master sends the Device Select Code,
shown in
Table 3
(on Serial Data (SDA), most significant bit first).
The Device Select Code consists of a 4-bit Device Type Identifier, and a 3-bit Chip Enable
“Address” (E2, E1, E0). To address the memory array, the 4-bit Device Type Identifier is
1010b.
Each device is given a unique 3-bit code on the Chip Enable (E0, E1, E2) inputs. When the
Device Select Code is received, the device only responds if the Chip Enable Address is the
same as the value on the Chip Enable (E0, E1, E2) inputs. However, those devices with
larger memory capacities (the M24C16, M24C08 and M24C04) need more address bits. E0
is not available for use on devices that need to use address line A8; E1 is not available for
devices that need to use address line A9, and E2 is not available for devices that need to
use address line A10 (see
Figure 2
and
Table 3
for details). Using the E0, E1 and E2 inputs,
up to eight M24C02 (or M24C01), four M24C04, two M24C08 or one M24C16 devices can
be connected to one I2C bus. In each case, and in the hybrid cases, this gives a total
memory capacity of 16 Kbits, 2 KBytes (except where M24C01 devices are used).
The 8
th
bit is the Read/Write bit (RW). This bit is set to 1 for Read and 0 for Write operations.
If a match occurs on the Device Select code, the corresponding device gives an
acknowledgment on Serial Data (SDA) during the 9
th
bit time. If the device does not match
the Device Select code, it deselects itself from the bus, and goes into Stand-by mode.
Table 4.
Operating modes
Mode
RW bit
WC
(1)
1.
X =
V
IH
or V
IL
.
Bytes
Initial Sequence
Current Address Read
1
X
1
START, Device Select, RW = 1
Random Address Read
0
X
1
START, Device Select, RW = 0, Address
1
X
reSTART, Device Select, RW = 1
Sequential Read
1
X
≥
1
Similar to Current or Random Address
Read
Byte Write
0
V
IL
1
START, Device Select, RW = 0
Page Write
0
V
IL
≤
16
START, Device Select, RW = 0
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| M24C08-WBN6 | 功能描述:電可擦除可編程只讀存儲器 5.5V 8K (1Kx8) 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 |
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| M24C08-WDW6P | 制造商:STMicroelectronics 功能描述:EEPROM SERL-I2C 8KBIT 1KX8 3.3V/5V 8TSSOP - Rail/Tube |
| M24C08-WDW6T | 功能描述:電可擦除可編程只讀存儲器 5.5V 8K (1Kx8) 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 |
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