Overview
The PCA9542APW,118 is a 2-channel I²C-bus multiplexer with interrupt logic, manufactured by NXP USA Inc. This component is designed to control and manage multiple I²C-bus channels, making it an essential part of various electronic systems. It is particularly useful in scenarios where multiple devices need to share the same I²C-bus, allowing for efficient and organized communication between these devices.
Key Specifications
| Attribute | Value |
|---|---|
| Interface Type | I²C |
| No of Channels | 2 |
| Clock Frequency-Max | 400 kHz |
| Supply Voltage-Nom | 2.3 V to 3.6 V |
| Supply Current | ±100 mA |
| Package Style | TSSOP-14 |
| Mounting Method | Surface Mount |
| Address Pins | 3 (allowing up to 8 devices on the I²C-bus) |
| Interrupt Inputs | 2 active LOW (INT0, INT1) |
| Interrupt Output | Active LOW (INT) |
Key Features
- 1-of-2 bidirectional translating multiplexer controlled via the I²C-bus
- I²C-bus interface logic; compatible with SMBus
- Active LOW interrupt inputs (INT0, INT1) and active LOW interrupt output (INT)
- 3 address pins allowing up to 8 devices on the I²C-bus
- Channel selection via I²C-bus
- Powers up with all multiplexer channels deselected
- Low Ron switches
- Allows voltage level translation between 1.8 V, 2.5 V, 3.3 V, and 5 V buses
- No glitch on power-up
- Supports hot insertion
- Low standby current
- Operating power supply voltage range of 2.3 V to 5.5 V
- 5 V tolerant inputs
Applications
- Industrial
- Automotive
Q & A
- What is the PCA9542APW,118 used for?
The PCA9542APW,118 is used as a 2-channel I²C-bus multiplexer with interrupt logic to manage and control multiple I²C-bus channels in electronic systems. - What is the maximum clock frequency of the PCA9542APW,118?
The maximum clock frequency is 400 kHz. - What is the nominal supply voltage range for the PCA9542APW,118?
The nominal supply voltage range is 2.3 V to 3.6 V. - How many address pins does the PCA9542APW,118 have?
It has 3 address pins, allowing up to 8 devices on the I²C-bus. - Does the PCA9542APW,118 support voltage level translation?
Yes, it allows voltage level translation between 1.8 V, 2.5 V, 3.3 V, and 5 V buses. - What is the package style of the PCA9542APW,118?
The package style is TSSOP-14. - Is the PCA9542APW,118 compatible with SMBus?
Yes, it is compatible with SMBus. - Does the PCA9542APW,118 have interrupt inputs and outputs?
Yes, it has 2 active LOW interrupt inputs (INT0, INT1) and an active LOW interrupt output (INT). - What are the typical applications of the PCA9542APW,118?
The typical applications include industrial and automotive sectors. - Does the PCA9542APW,118 support hot insertion?
Yes, it supports hot insertion.
