PCA9545 Philips Semiconductors, PCA9545 Datasheet - Page 8

• Manufacturer Part Number: PCA9545
• Description: 4-channel I2C switch with interrupt logic and reset
• Manufacturer: Philips Semiconductors

Philips Semiconductors
TYPICAL APPLICATION
2002 Mar 28
NOTE:
1.
4-channel I
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 switch with interrupt logic and reset
V
I
2
DD
C/SMBus MASTER
= 2.7 – 5.5 V
SDA
SCL
Figure 12. Typical application
8
SDA
SCL
INT
RESET
A1
A0
V
SS
PCA9545
V
DD
= 3.3 V
INT0
INT1
INT2
INT3
SD0
SC0
SD1
SC1
SD2
SC2
SD3
SC3
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
PCA9545
853-2302 27311
Product data
SW00810