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参数资料
| 型号： | 24LC014T-E/MNY |
| 厂商： | Microchip Technology |
| 文件页数： | 11/36页 |
| 文件大小： | 0K |
| 描述： | IC EEPROM 1KBIT 400KHZ 8TDFN |
| 标准包装： | 3,300 |
| 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 ~ 125°C |
| 封装/外壳： | 8-WFDFN 裸露焊盘 |
| 供应商设备封装： | 8-TDFN（2x3） |
| 包装： | 带卷 (TR) |
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24AA014/24LC014
8.0 READ OPERATIONS
Read operations are initiated in the same way as write
operations, with the exception that the R/W bit of the
slave address is set to ‘ 1 ’. There are three basic types
of read operations: current address read, random read
and sequential read.
Once the word address is sent, the master generates a
Start condition following the acknowledge. This
terminates the write operation, but not before the
internal Address Pointer is set. The master then issues
the control byte again but with the R/W bit set to a ‘ 1 ’.
The 24AA014/24LC014 will then issue an acknowl-
edge and transmits the eight-bit data word. The master
8.1
Current Address Read
will not acknowledge the transfer, but does generate a
Stop condition and the 24AA014/24LC014 discontin-
The 24AA014/24LC014 contains an address counter
that maintains the address of the last word accessed,
internally incremented by one. Therefore, if the
ues transmission ( Figure 8-2 ). After this command, the
internal address counter will point to the address
location following the one that was just read.
previous read access was to address n, the next
current address read operation would access data from
8.3
Sequential Read
address n + 1. Upon receipt of the slave address with
the R/W bit set to ‘ 1 ’, the 24AA014/24LC014 issues an
acknowledge and transmits the 8-bit data word. The
master will not acknowledge the transfer, but does
generate a Stop condition and the 24AA014/24LC014
discontinues transmission ( Figure 8-1 ).
Sequential reads are initiated in the same way as a
random read except that after the 24AA014/24LC014
transmits the first data byte, the master issues an
acknowledge as opposed to a Stop condition in a
random read. This directs the 24AA014/24LC014 to
transmit the next sequentially addressed 8-bit word
8.2
Random Read
( Figure 8-3 ).
To provide sequential reads the 24AA014/24LC014
Random read operations allow the master to access
any memory location in a random manner. To perform
this type of read operation, the word address must first
be set. This is done by sending the word address to the
24AA014/24LC014 as part of a write operation.
contains an internal Address Pointer which is
incremented by one at the completion of each opera-
tion. This Address Pointer allows the entire memory
contents to be serially read during one operation. The
internal Address Pointer will automatically roll over
from address 07Fh to address 000h.
FIGURE 8-1:
CURRENT ADDRESS READ
Bus Activity
Master
S
T
A
R
T
Control
Byte
Data
S
T
O
P
SDA Line
Bus Activity
? 2010 Microchip Technology Inc.
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DS21809G-page 11
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 24LC014T-I/MC | 功能描述:电可擦除可编程只读存储器 1K 256X8 SER EE 2.5V 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 |
| 24LC014T-I/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 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 |
| 24LC014T-I/MS | 功能描述:电可擦除可编程只读存储器 256x8 - 2.5V 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-I/MSG | 功能描述:电可擦除可编程只读存储器 256x8 - 2.5V Lead Free Package 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-I/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 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 |
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