PCA9556PW,112 NXP Semiconductors, PCA9556PW,112 Datasheet - Page 8

• Manufacturer Part Number: PCA9556PW,112
• Description: IC I/O EXPANDER I2C 8B 16TSSOP
• Manufacturer: NXP Semiconductors

Specifications of PCA9556PW,112

• Package / Case: 16-TSSOP
• 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
• Includes: POR
• Logic Family: PCA9556
• Number Of Lines (input / Output): 8.0 / 8.0
• Operating Supply Voltage: 3 V to 5.5 V
• Operating Temperature Range: - 40 C to + 85 C
• Logic Type: I2C, SMBus
• Mounting Style: SMD/SMT
• Number Of Input Lines: 8.0
• Number Of Output Lines: 8.0
• Output Current: 20 mA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 568-1059-5; 935262899112; PCA9556PW

1. This figure assumes the command byte has previously been programmed with 00h.
2. Transfer of data can be stopped at any moment by a stop condition. When this occurs, data present at the last acknowledge phase is valid
Philips Semiconductors
NOTES:
2002 Mar 28
S
Octal SMBus and I
READ FROM
(output mode). Input data is lost.
DATA INTO
0
PORT
PORT
0
SDA
1
slave address
1
A2 A1 A0
start condition
S
0
acknowledge
from slave
0
R/W
0
1
slave address
A
2
C registered interface
1
Figure 10. READ input port register via Receive byte protocol
A2
Figure 9. READ from register via Read byte protocol
A1 A0
COMMAND BYTE
t
R/W
ph
1
A
acknowledge
from slave
acknowledge
from slave
DATA 2
A
at this moment master-transmitter
becomes master-receiver and
slave-receiver becomes
slave-transmitter
8
data from port
S
DATA 1
0
DATA 3
0
slave address
1
1
A2 A1 A0
t
ps
A
acknowledge
from master
acknowledge
from slave
R/W
1
A
data from port
DATA 4
data from register
DATA 4
last byte
data from register
DATA
no acknowledge
from master
first byte
DATA
PCA9556
no acknowledge
from master
NA
Product data
acknowledge
from master
NA
SW00799
su01052
P
stop
condition
P
A