PCA9545AD,118 NXP Semiconductors, PCA9545AD,118 Datasheet - Page 13

• Manufacturer Part Number: PCA9545AD,118
• Description: IC I2C SWITCH 4CH 20-SOIC
• Manufacturer: NXP Semiconductors

Specifications of PCA9545AD,118

• Applications: 4-Channel I²C Switcher
• Interface: I²C
• Voltage - Supply: 2.3 V ~ 3.6 V, 4.5 V ~ 5.5 V
• Package / Case: 20-SOIC (7.5mm Width)
• Mounting Type: Surface Mount
• 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: Lead free / RoHS Compliant
• Other names: 568-1864-2; 935275808118; PCA9545AD-T

NXP Semiconductors
8. Application design-in information
PCA9545A_45B_45C_7
Product data sheet
Fig 16. Typical application
I
(1) If the device generating the interrupt has an open-drain output structure or can be 3-stated, a
2
C-bus/SMBus master
V
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.
DD
= 2.7 V to 5.5 V
SDA
SCL
Rev. 07 — 19 June 2009
4-channel I
INT
SDA
SCL
RESET
A1
A0
V
SS
2
PCA9545A
V
C-bus switch with interrupt logic and reset
DD
= 3.3 V
PCA9545A/45B/45C
002aab171
INT0
INT1
INT2
INT3
SD0
SC0
SD1
SC1
SD2
SC2
SD3
SC3
see note
see note
see note
see note
© 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
(1)
(1)
(1)
(1)
channel 0
channel 1
channel 2
channel 3
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