PCA9544D NXP Semiconductors, PCA9544D Datasheet - Page 9

• Manufacturer Part Number: PCA9544D
• Manufacturer: NXP Semiconductors

Specifications of PCA9544D

• Logical Function: I2C Multiplexer
• Configuration: 1 x 4:1
• Number Of Inputs: 4
• Number Of Outputs: 1
• Operating Supply Voltage (typ): 2.5/3.3/5V
• Operating Supply Voltage (min): 2.3V
• Operating Supply Voltage (max): 5.5V
• Power Dissipation: 400mW
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 20
• Package Type: SO
• Lead Free Status / Rohs Status: Compliant

Philips Semiconductors
TYPICAL APPLICATION
2004 Sep 29
4-channel I
NOTE:
1.
If the device generating the Interrupt has an open-drain output
structure or can be tri-stated, a pull-up resistor is required.
If the device generating the Interrupt has a totem-pole output
structure and cannot be tri-stated, a pull-up resistor is not
required.
The Interrupt inputs should not be left floating.
2
C multiplexer with interrupt logic
V
I
2
DD
C/SMBus MASTER
= 2.7 – 5.5 V
SDA
SCL
Figure 13. Typical application
SDA
SCL
INT
A2
A1
A0
V
SS
9
PCA9544
V
DD
= 3.3 V
INT0
INT1
INT2
INT3
SD0
SC0
SD1
SC1
SD1
SC1
SD1
SC1
SEE NOTE (1)
SEE NOTE (1)
SEE NOTE (1)
SEE NOTE (1)
V = 2.7 – 5.5 V
V = 2.7 – 5.5 V
V = 2.7 – 5.5 V
V = 2.7 – 5.5 V
CHANNEL 0
CHANNEL 1
CHANNEL 2
CHANNEL 3
PCA9544
Product data sheet
SW00864