参数资料
| 型号： | 24C02C-E/ST |
| 厂商： | Microchip Technology |
| 文件页数： | 8/30页 |
| 文件大小： | 0K |
| 描述： | IC EEPROM 2KBIT 400KHZ 8TSSOP |
| 产品培训模块： | I2C Serial EEPROM |
| 标准包装： | 100 |
| 格式 - 存储器： | EEPROMs - 串行 |
| 存储器类型： | EEPROM |
| 存储容量： | 2K (256 x 8) |
| 速度： | 100kHz，400kHz |
| 接口： | I²C，2 线串口 |
| 电源电压： | 4.5 V ~ 5.5 V |
| 工作温度： | -40°C ~ 125°C |
| 封装/外壳： | 8-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 8-TSSOP |
| 包装： | 管件 |
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24C02C
5.0
DEVICE ADDRESSING
FIGURE 5-1:
CONTROL BYTE FORMAT
A control byte is the first byte received following the
Start condition from the master device (Figure 5-1).
Read/Write Bit
The control byte consists of a four-bit control code; for
the 24C02C this is set as ‘ 1010 ’ binary for read and
write operations. The next three bits of the control byte
Control Code
Chip Select
Bits
are the Chip Select bits (A2, A1, A0). The Chip Select
S
1
0
1
0
A2
A1
A0 R/W ACK
bits allow the use of up to eight 24C02C devices on the
same bus and are used to select which device is
accessed. The Chip Select bits in the control byte must
Slave Address
correspond to the logic levels on the corresponding A2,
A1 and A0 pins for the device to respond. These bits
are in effect the three Most Significant bits of the word
address.
Start Bit
5.1
Acknowledge Bit
Contiguous Addressing Across
The last bit of the control byte defines the operation to
be performed. When set to a ‘ 1 ’ a read operation is
selected, and when set to a ‘ 0 ’ a write operation is
selected. Following the Start condition, the 24C02C
monitors the SDA bus checking the control byte being
transmitted. Upon receiving a ‘ 1010 ’ code and appro-
priate Chip Select bits, the slave device outputs an
Acknowledge signal on the SDA line. Depending on the
state of the R/W bit, the 24C02C will select a read or
write operation.
DS21202J-page 8
Multiple Devices
The Chip Select bits A2, A1, A0 can be used to expand
the contiguous address space for up to 16K bits by
adding up to eight 24C02C devices on the same bus.
In this case, software can use A0 of the control byte
as address bit A9, A1 as address bit A10, and A2 as
address bit A11. It is not possible to write or read across
device boundaries.
? 2008 Microchip Technology Inc.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 24C02CI/MC | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:2K 5.0V I2C⑩ Serial EEPROM |
| 24C02C-I/MC | 功能描述:电可擦除可编程只读存储器 2K 256 X 8 SERIAL EE IND RoHS:否 制造商:Atmel 存储容量:2 Kbit 组织:256 B x 8 数据保留:100 yr 最大时钟频率:1000 KHz 最大工作电流:6 uA 工作电源电压:1.7 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 |
| 24C02C-I/MNY | 功能描述:电可擦除可编程只读存储器 2K 256 X 8 SERIAL EE IND RoHS:否 制造商:Atmel 存储容量:2 Kbit 组织:256 B x 8 数据保留:100 yr 最大时钟频率:1000 KHz 最大工作电流:6 uA 工作电源电压:1.7 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 |
| 24C02CI/MS | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:2K 5.0V I2C⑩ Serial EEPROM |
| 24C02C-I/MS | 功能描述:电可擦除可编程只读存储器 256x8 RoHS:否 制造商:Atmel 存储容量:2 Kbit 组织:256 B x 8 数据保留:100 yr 最大时钟频率:1000 KHz 最大工作电流:6 uA 工作电源电压:1.7 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 |
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