PCA8575 查看數據表（PDF） - Philips Electronics
零件编号
产品描述 (功能)
生产厂家
PCA8575 Datasheet PDF : 30 Pages
| |||
xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxx x x x xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxx xx xx
xxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxx xxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxx x x
xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxx xxx
SCL 1 2 3 4 5 6 7 8 9
SDA
S 0 1 0 0 A2 A1 A0 1 A
START condition
read from port 0
data into port 0
R/W
acknowledge
from slave
th(D)
DATA 00
read from port 1
P0x
DATA 00
A
acknowledge
from master
DATA 01
th(D)
data into port 1
DATA 10
P1x
DATA 10
A
acknowledge
from master
DATA 02
tsu(D)
DATA 11
P0x
DATA 03
A
acknowledge
from master
DATA 03
tsu(D)
P1x
DATA 12
1P
no acknowledge
from master
DATA 12
INT
tv(D)
td(rst)
002aab811
Transfer of data can be stopped at any moment by a STOP condition. When this occurs, data present at the latest acknowledge phase is valid (output mode).
Fig 13. Read input port register, scenario 2
Share Link: 