参数资料
| 型号： | 24LC014-I/SN |
| 厂商： | Microchip Technology |
| 文件页数： | 7/36页 |
| 文件大小： | 0K |
| 描述： | IC EEPROM 1KBIT 400KHZ 8SOIC |
| 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： | 1K (128 x 8) |
| 速度： | 400kHz |
| 接口： | I²C，2 线串口 |
| 电源电压： | 2.5 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOICN |
| 包装： | 管件 |
| 其它名称： | 24LC014I/SN |
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24AA014/24LC014
5.0
DEVICE ADDRESSING
FIGURE 5-1:
CONTROL BYTE FORMAT
A control byte is the first byte received following the
Read/Write Bit
Start condition from the master device ( Figure 5-1 ).
The control byte consists of a four-bit control code; for
the 24AA014/24LC014 this is set as ‘ 1010 ’ binary for
read and write operations. The next three bits of the
Control Code
Chip Select
Bits
control byte are the Chip Select bits (A2, A1, A0). The
S
1
0
1
0
A2
A1
A0 R/W ACK
Chip Select bits allow the use of up to eight 24AA014/
24LC014 devices on the same bus and are used to
Slave Address
select which device is accessed. The Chip Select bits
in the control byte must 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.
For the SOT-23 package, the A2 address pin is not
Start Bit
5.1
Acknowledge Bit
Contiguous Addressing Across
Multiple Devices
available. During device addressing, the A2 Chip
Select bit should be set to ‘ 0 ’.
The last bit of the control byte defines the operation to
be performed. When set to a ‘ 1 ’, a read operation is
selected. When set to a ‘ 0 ’, a write operation is
selected. Following the Start condition, the 24AA014/
24LC014 monitors the SDA bus, checking the control
byte being transmitted. Upon receiving a ‘ 1010 ’ code
and appropriate Chip Select bits, the slave device out-
puts an Acknowledge signal on the SDA line. Depend-
ing on the state of the R/W bit, the 24AA014/24LC014
will select a read or write operation.
? 2010 Microchip Technology Inc.
The Chip Select bits A2, A1 and A0 can be used to
expand the contiguous address space for up to 8K bits
by adding up to eight 24AA014/24LC014 devices on
the same bus. In this case, software can use A0 of the
control byte as address bit A8, A1 as address bit A9,
and A2 as address bit A10. It is not possible to
sequentially read across device boundaries.
For the SOT-23 package, up to four 24AA014/24LC014
devices can be added for up to 4K bits of address
space. In this case, software can use A0 of the control
byte as address bit A8, and A1 as address bit A9. It is
not possible to sequentially read across device bound-
aries.
DS21809G-page 7
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 24LC014T | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:1K I2C? Serial EEPROM |
| 24LC014T-E/MC | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:1K I2Ca?￠ Serial EEPROM |
| 24LC014T-E/MNY | 功能描述:电可擦除可编程只读存储器 1K 128 X 8 SERIAL EE 2.5V EXT 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 |
| 24LC014T-E/MS | 功能描述:电可擦除可编程只读存储器 1K 128 X 8 SERIAL EE 2.5V EXT 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 |
| 24LC014T-E/OT | 功能描述:电可擦除可编程只读存储器 1K 128 X 8 SERIAL EE 2.5V EXT 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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