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參數(shù)資料
| 型號： | CAT24C256 |
| 英文描述： | 256-Kb I2C CMOS Serial EEPROM |
| 中文描述： | 256 - KB的的I2C的CMOS串行EEPROM |
| 文件頁數(shù)： | 8/14頁 |
| 文件大?。?/td> | 526K |
| 代理商： | CAT24C256 |
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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PDF描述 |
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| CAT24C256LI-GT3 | 256-Kb I2C CMOS Serial EEPROM |
| CAT24C256LIT3 | 256-Kb I2C CMOS Serial EEPROM |
| CAT24C256WI-GT3 | 256-Kb I2C CMOS Serial EEPROM |
| CAT24C256XI-GT3 | 256-Kb I2C CMOS Serial EEPROM |
| CAT24C256XIT3 | 256-Kb I2C CMOS Serial EEPROM |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| CAT24C256HU4IGT3 | 功能描述:電可擦除可編程只讀存儲器 LOW-SATURATION VOLTAGE 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 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 |
| CAT24C256LGI | 制造商:Catalyst Semiconductor 功能描述: |
| CAT24C256LI | 制造商:Rochester Electronics LLC 功能描述: 制造商:Catalyst Semiconductor 功能描述: |
| CAT24C256LI-G | 功能描述:電可擦除可編程只讀存儲器 (32768x8) 256K 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 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 |
| 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 |
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