PCA9555PW,118 NXP Semiconductors, PCA9555PW,118 Datasheet - Page 12

• Manufacturer Part Number: PCA9555PW,118
• Description: IC I/O EXPANDER I2C 16B 24TSSOP
• Manufacturer: NXP Semiconductors

Specifications of PCA9555PW,118

• Package / Case: 24-TSSOP
• Interface: I²C, SMBus
• Number Of I /o: 16
• Interrupt Output: Yes
• Frequency - Clock: 400kHz
• Voltage - Supply: 2.3 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Includes: POR
• Logic Family: CMOS
• Number Of Lines (input / Output): 8 / 8
• Operating Supply Voltage: 2.3 V to 5.5 V
• Power Dissipation: 200 mW
• Operating Temperature Range: - 40 C to + 85 C
• Input Voltage: 2.3 V to 5.5 V
• Logic Type: I2C, SMBus
• Maximum Clock Frequency: 400 KHz
• Maximum Operating Frequency: 0 KHz to 400 KHz
• Mounting Style: SMD/SMT
• Number Of Input Lines: 8
• Number Of Output Lines: 8
• Output Current: +/- 50 mA
• Output Voltage: 1.7 V to 4.1 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 568-1058-2; 935269569118; PCA9555PW-T

Fig 13. Read Input port register, scenario 1
data into port 0
data into port 1
INT
SDA
read from port 0
read from port 1
INT
SCL
S
START condition
Remark: Transfer of data can be stopped at any moment by a STOP condition. When this occurs, data present at the latest acknowledge phase is valid (output mode). It
is assumed that the command byte has previously been set to ‘00’ (read Input Port register).
1
0
2
1
t
v(INT_N)
slave address
3
0
4
0 A2 A1 A0 1
5
6
acknowledge
from slave
7
R/W
8
9
A
7
t
6
rst(INT_N)
5
4
I0.x
3
acknowledge
2
from master
1
0
A
7
6
5
4
I1.x
3
acknowledge
2
from master
1
0
A
A
7
6
5
4
I0.x
3
acknowledge
2
from master
1
0
A
7
6
5
4
I1.x
3
non acknowledge
2
from master
STOP condition
1
0
002aac223
1
P