PCF8574TS/3,112 NXP Semiconductors, PCF8574TS/3,112 Datasheet - Page 10

• Manufacturer Part Number: PCF8574TS/3,112
• Description: IC I/O EXPANDER I2C 8B 20SSOP
• Manufacturer: NXP Semiconductors

Specifications of PCF8574TS/3,112

• 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
• Maximum Operating Frequency: 100 KHz
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Number Of Output Lines: 9
• Output Voltage: 2.4 V
• Supply Voltage (max): 6 V
• Supply Voltage (min): 2.5 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 568-3615 - DEMO BOARD I2C
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 568-3988-5; 935275672112; PCF8574TDK; PCF8574TDK

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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