參數(shù)資料
型號(hào): 935084790118
廠商: NXP SEMICONDUCTORS
元件分類: 微控制器/微處理器
英文描述: 8 I/O, PIA-GENERAL PURPOSE, PDSO20
封裝: 4.40 MM, PLASTIC, MO-152, SOT-266-1, SSOP-20
文件頁(yè)數(shù): 5/33頁(yè)
文件大?。?/td> 316K
代理商: 935084790118
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2002
Nov
22
13
Philips
Semiconductors
Product
specication
Remote
8-bit
I/O
e
xpander
f
or
I
2C-b
us
PCF8574
handbook,
full
pagewidth
MBD971
S
0
1
A2
A1
A0
0
A
start condition
1
P3
R/W
acknowledge
from slave
A
0
P3
A
P
SDA
SCL
P3
OUTPUT
VOLTAGE
I OHt
I OH
P3
PULL-UP
OUTPUT
CURRENT
slave address (PCF8574A)
data to port
12
345
678
Fig.15 Transient pull-up current IOHt while P3 changes from LOW-to-HIGH and back to LOW.
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