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PCA9556PW Fiches technique(PDF) 6 Page - NXP Semiconductors

No de pièce PCA9556PW
Description  Octal SMBus and I2C registered interface
PDF  13 Pages
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Fabricant  PHILIPS [NXP Semiconductors]
Site Internet  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

PCA9556PW Fiches technique(HTML) 6 Page - NXP Semiconductors

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Philips Semiconductors
Product data
PCA9556
Octal SMBus and I2C registered interface
2002 Mar 28
6
SIMPLIFIED SCHEMATIC OF I/O1 TO I/O7
WRITE PULSE
DATA FROM
SHIFT REGISTER
VDD
I/O0 TO I/O15
VSS
WRITE
CONFIGURATION
PULSE
D
CK
FF
Q
D
CK
Q
FF
D
CK
Q
FF
D
CK
Q
FF
INPUT PORT
REGISTER
POLARITY
INVERSION
REGISTER
OUTPUT
PORT
REGISTER
DATA FROM
SHIFT REGISTER
DATA FROM
SHIFT REGISTER
WRITE POLARITY
PULSE
CONFIGURATION
REGISTER
OUTPUT PORT
REGISTER DATA
INPUT PORT
REGISTER DATA
POLARITY
REGISTER DATA
READ PULSE
ESD PROTECTION DIODE
ESD PROTECTION DIODE
SW00796
Q
Q
Q
Q
NOTE:
On power–up or reset, all registers return to default values.
Figure 5. Simplified schematic of I/O1 to I/O7



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