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參數資料
| 型號： | PCA8581 |
| 廠商： | NXP Semiconductors N.V. |
| 元件分類： | DRAM |
| 英文描述： | 128 x 8-bit EEPROM with I2C-bus interface |
| 中文描述： | 128 × 8位EEPROM帶I2C總線接口 |
| 文件頁數： | 8/20頁 |
| 文件大小： | 107K |
| 代理商： | PCA8581 |
1997 Apr 02
8
Philips Semiconductors
Product specification
128
×
8-bit EEPROM with I
2
C-bus interface
PCA8581; PCA8581C
To transmit eight bytes in sequential order, begin with the lowest address bits 0 0 0. The data is written after a stop is
detected. The data is only written if complete bytes have been received and acknowledged. Writing takes a time t
WR
(6 to 10 ms) during which the device will not respond to its slave address. Note that to write the next row, a new write
operation is required (start, slave address, row address, data and stop).
An unlimited number of data bytes can be read in one operation. The address is automatically incremented. If a read
without setting the word address is performed after a write operation, the address pointer may point at a byte in the row
after the previously written row. This occurs if, during writing, the three lowest address bits (column) rolled over.
Fig.9 Master reads after setting word address (WRITE word address; READ data).
handbook, full pagewidth
S
0 A
SLAVE ADDRESS
WORD ADDRESS
A
A
SLAVE ADDRESS
acknowledgement
from slave
acknowledgement
from slave
acknowledgement
from slave
R/W
X
don't
care
acknowledgement
from master
A
DATA
auto increment
memory word address
MLB891
P
no acknowledgement
from master
1
DATA
auto increment
memory word address
last byte
R/W
S
1
n bytes
at this moment master -
transmitter becomes
master - receiver and
PCA8581(C) slave - receiver
becomes slave - transmitter
Fig.10 Master reads slave immediately after first byte (READ mode).
handbook, full pagewidth
S
1 A
SLAVE ADDRESS
DATA
A
1
DATA
acknowledgement
from slave
acknowledgement
from slave
acknowledgement
from slave
R/W
auto increment
word address
MBD824
auto increment
word address
n bytes
last bytes
P
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相關代理商/技術參數 |
參數描述 |
|---|---|
| PCA8581C | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:128 x 8-bit EEPROM with I2C-bus interface |
| PCA8581CP | 制造商:NXP Semiconductors 功能描述:128 X 8 EEPROM 3V, PDIP8 |
| PCA8581CT | 制造商:NXP Semiconductors 功能描述: |
| PCA8581CT/6,112 | 功能描述:電可擦除可編程只讀存儲器 128X8 電可擦除可編程只讀存儲器 I2C-BUS SO-8 RoHS:否 制造商:Atmel 存儲容量:2 Kbit 組織:256 B x 8 數據保留: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 |
| PCA8581CT/6,118 | 功能描述:電可擦除可編程只讀存儲器 128X8 電可擦除可編程只讀存儲器 I2C-BUS SO-8 RoHS:否 制造商:Atmel 存儲容量:2 Kbit 組織:256 B x 8 數據保留: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 |
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