pca9544ad NXP Semiconductors, pca9544ad Datasheet - Page 9

• Manufacturer Part Number: pca9544ad
• Description: Pca9544a 4-channel I2c Multiplexer With Interrupt Logic
• Manufacturer: NXP Semiconductors

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
PCA9544A
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
PCA9544A
Product data sheet
SW02268