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參數(shù)資料
| 型號(hào)： | 935276541512 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 模擬信號(hào)調(diào)理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PDSO16 |
| 封裝： | 7.50 MM, LEAD FREE, PLASTIC, SOT162-1, SO-16 |
| 文件頁(yè)數(shù)： | 6/34頁(yè) |
| 文件大小： | 251K |
| 代理商： | 935276541512 |
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2003 Jan 27
14
Philips Semiconductors
Product specication
8-bit A/D and D/A converter
PCF8591
8.5
I2C-bus protocol
After a start condition a valid hardware address has to be sent to a PCF8591 device. The read/write bit defines the
direction of the following single or multiple byte data transfer. For the format and the timing of the start condition (S), the
stop condition (P) and the acknowledge bit (A) refer to the I2C-bus characteristics. In the write mode a data transfer is
terminated by sending either a stop condition or the start condition of the next data transfer.
handbook, full pagewidth
0
MBL833
S
ADDRESS
CONTROL BYTE
DATA BYTE
acknowledge
from PCF8591
A
acknowledge
from PCF8591
A
P/S
acknowledge
from PCF8591
N = 0 to M
data bytes
Fig.16 Bus protocol for write mode, D/A conversion.
handbook, full pagewidth
1
MBL834
S
ADDRESS
DATA BYTE
LAST DATA BYTE
acknowledge
from PCF8591
A
acknowledge
from master
A
1
P
no acknowledge
N = 0 to M
data bytes
Fig.17 Bus protocol for read mode, A/D conversion.
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