参数资料
型号: CAT24C256LI-GT3
英文描述: 256-Kb I2C CMOS Serial EEPROM
中文描述: 256 - KB的的I2C的CMOS串行EEPROM
文件页数: 8/14页
文件大小: 526K
代理商: CAT24C256LI-GT3
CAT24C256
8
Doc. No. 04, Rev. D
2007 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
READ OPERATIOnS
Immediate Address Read
In standby mode, the CAT24C256 internal address
counter points to the data byte immediately following the
last byte accessed by a previous operation. If that ‘previ-
ous’ byte was the last byte in memory, then the address
counter will point to the
st
memory byte, etc.
When, following a START, the CAT24C256 is presented
with a Slave address containing a ‘’ in the R/W bit
position (Figure 8), it will acknowledge (ACK) in the 9
th
clock cycle, and will then transmit data being pointed
at by the internal address counter. The Master can stop
further transmission by issuing a NoACK, followed by a
STOP condition.
Selective Read
The Read operation can also be started at an address
different from the one stored in the internal address
counter. The address counter can be initialized by per-
forming a ‘dummy’ Write operation (Figure 9). Here the
START is followed by the Slave address (with the R/W
bit set to ‘0’) and the desired two byte address. Instead
of following up with data, the Master then issues a 2
nd
START, followed by the ‘Immediate Address Read’ se-
quence, as described earlier.
Sequential Read
If the Master acknowledges the
st
data byte transmitted
by the CAT24C256, then the device will continue trans-
mitting as long as each data byte is acknowledged by
the Master (Figure 0). If the end of memory is reached
during sequential Read, then the address counter will
‘wrap-around’ to the beginning of memory, etc. Sequential
Read works with either ‘Immediate Address Read’ or
‘Selective Read’, the only difference being the starting
byte address.
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相关代理商/技术参数
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CAT24C256WE-GT3 制造商:ON Semiconductor 功能描述:256-KB I2C SERIAL CMOS EEPROM MEMORY SOIC-8 PKG, 3K/REEL - Tape and Reel
CAT24C256WGI 制造商:Catalyst Semiconductor 功能描述:
CAT24C256WI-G 功能描述:电可擦除可编程只读存储器 (32768x8) 256K 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
CAT24C256WI-G 制造商:ON Semiconductor 功能描述:IC EEPROM 256KBIT SERIAL 400KHZ SOIC-8 制造商:ON Semiconductor 功能描述:IC, EEPROM, 256KBIT SERIAL 400KHZ SOIC-8
CAT24C256WI-GT3 功能描述:电可擦除可编程只读存储器 256K-Bit I2C Serial CMOS 电可擦除可编程只读存储器 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