PCF8574ATS/3,118 NXP Semiconductors, PCF8574ATS/3,118 Datasheet - Page 10

• Manufacturer Part Number: PCF8574ATS/3,118
• Description: IC I/O EXPANDER I2C 8B 20SSOP
• Manufacturer: NXP Semiconductors

Specifications of PCF8574ATS/3,118

• Package / Case: 20-SSOP
• Interface: I²C
• Number Of I /o: 8
• Interrupt Output: Yes
• Frequency - Clock: 100KHz
• Voltage - Supply: 2.5 V ~ 6 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Includes: POR
• Logic Family: PCF8574
• Number Of Lines (input / Output): 8.0 / 8.0
• Operating Supply Voltage: 2.5 V to 6 V
• Power Dissipation: 400 mW
• Operating Temperature Range: - 40 C to + 85 C
• Logic Type: I/O Expander
• Maximum Clock Frequency: 100 KHz
• Mounting Style: SMD/SMT
• Number Of Input Lines: 8.0
• Number Of Output Lines: 8.0
• Output Current: 25 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: 568-2030-2; 935276544118; PCF8574ATDK-T

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FROM PORT
DATA OUT
WRITE TO
PORT
SCL
SDA
start condition
S
1
0
slave address (PCF8574)
2
1
0
3
4
0
A2
5
A1
6
A0
7
R/W
8
0
A
acknowledge
from slave
Fig.11 WRITE mode (output).
data to port
DATA 1
t pv
A
acknowledge
from slave
data to port
DATA 1 VALID
DATA 2
t pv
A
acknowledge
from slave
DATA 2 VALID
MBD974