參數(shù)資料
型號: 935262899118
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, PDSO16
封裝: PLASTIC, TSSOP-16
文件頁數(shù): 10/14頁
文件大?。?/td> 144K
代理商: 935262899118
Philips Semiconductors
Product specification
PCA9556
Octal SMBus Registered Interface
1998 Dec 18
5
SIMPLIFIED SCHEMATIC OF I/O1 TO I/O7
WRITE PULSE
DATA FROM
SHIFT REGISTER
VDD
I/O1 TO I/O7
VSS
WRITE MASK PULSE
D
CK
FF
Q
D
CK
Q
FF
D
CK
Q
FF
D
CK
Q
FF
READ
REGISTER
POLARITY
REGISTER
WRITE
REGISTER
DATA FROM
SHIFT REGISTER
DATA FROM
SHIFT REGISTER
WRITE
POLARITY
PULSE
INPUT/OUTPUT
MASK REGISTER
OUTPUT PORT
REGISTER DATA
INPUT PORT
REGISTER DATA
POLARITY
REGISTER DATA
READ PULSE
ESD PROTECTION DIODE
su01055
Q
NOTE: ON POWER-UP OR RESET, ALL REGISTERS RETURN TO DEFAULT VALUES
Figure 4. Simplified schematic of I/O1 to I/O7
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