PCA9556PW,118 NXP Semiconductors, PCA9556PW,118 Datasheet - Page 6

• Manufacturer Part Number: PCA9556PW,118
• Description: IC I/O EXPANDER I2C 8B 16TSSOP
• Manufacturer: NXP Semiconductors

Specifications of PCA9556PW,118

• Interface: I²C, SMBus
• Number Of I /o: 8
• Interrupt Output: Yes
• Frequency - Clock: 100KHz
• Voltage - Supply: 3 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-TSSOP
• Includes: POR
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 935262899118; PCA9556PW-T; PCA9556PW-T

NOTE: On power–up or reset, all registers return to default values.
Philips Semiconductors
SIMPLIFIED SCHEMATIC OF I/O1 TO I/O7
2002 Mar 28
Octal SMBus and I
WRITE POLARITY
SHIFT REGISTER
SHIFT REGISTER
CONFIGURATION
SHIFT REGISTER
WRITE PULSE
READ PULSE
DATA FROM
DATA FROM
DATA FROM
WRITE
PULSE
PULSE
CONFIGURATION
REGISTER
C
D
K
FF
Q
2
Q
C registered interface
Figure 5. Simplified schematic of I/O1 to I/O7
OUTPUT
PORT
REGISTER
C
D
K
FF
Q
Q
6
INPUT PORT
REGISTER
POLARITY
INVERSION
REGISTER
C
C
D
D
K
K
FF
FF
Q
Q
Q
Q
ESD PROTECTION DIODE
ESD PROTECTION DIODE
OUTPUT PORT
REGISTER DATA
V
I/O0 TO I/O15
V
INPUT PORT
REGISTER DATA
POLARITY
REGISTER DATA
DD
SS
SW00796
PCA9556
Product data