PCA9544APW/G-T NXP Semiconductors, PCA9544APW/G-T Datasheet - Page 12

• Manufacturer Part Number: PCA9544APW/G-T
• Description: IC I2C MUX 4CH 20-TSSOP
• Manufacturer: NXP Semiconductors

Specifications of PCA9544APW/G-T

• Applications: 4-Channel I²C Multiplexer
• Interface: I²C
• Voltage - Supply: 2.3 V ~ 3.6 V, 4.5 V ~ 5.5 V
• Package / Case: 20-TSSOP
• Mounting Type: Surface Mount
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 568-1862-2

NXP Semiconductors
8. Application design-in information
PCA9544A_4
Product data sheet
Fig 14. Typical application
(1) If the device generating the interrupt has an open-drain output structure or can be 3-stated,
I
2
C-bus/SMBus master
a pull-up resistor is required.
If the device generating the interrupt has a totem pole output structure and cannot be 3-stated,
a pull-up resistor is not required.
The interrupt inputs should not be left floating.
V
DD
= 2.7 V to 5.5 V
SDA
SCL
Rev. 04 — 15 June 2009
SDA
SCL
INT
A2
A1
A0
V
4-channel I
SS
PCA9544A
V
DD
= 3.3 V
002aae298
2
INT0
INT1
INT2
INT3
SD0
SC0
SD1
SC1
SD2
SC2
SD3
SC3
C-bus multiplexer with interrupt logic
(1)
(1)
(1)
(1)
PCA9544A
© NXP B.V. 2009. All rights reserved.
V = 2.7 V to 5.5 V
V = 2.7 V to 5.5 V
V = 2.7 V to 5.5 V
V = 2.7 V to 5.5 V
channel 0
channel 1
channel 2
channel 3
12 of 26