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NXP PCA9542APW118 I2C Bus Multiplexer

The PCA9542A is a bidirectional 2-channel I2C-bus multiplexer with interrupt logic, supporting voltage level translation between 1.8 V to 5 V. It enables multiple devices to communicate over different voltage levels, providing channels controlled via the I2C-bus with active LOW interrupt inputs INTO and INT1, and a common interrupt output INT. The device features low ON-resistance switches, power-on reset, hot insertion support, and supports clock frequencies from 0 Hz to 400 kHz, making it ideal for complex I2C systems requiring reliable channel selection and voltage translation.

Authorized Distributors
Source:Newark
Part No:PCA9542APW,118
Stock:2838
Inv Date:06-09-2026
Price: Unit price: $2.38
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Part No:PCA9542APW,118
Stock:6928
Inv Date:06-10-2026
Price: Unit price: $2.41
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Part No:PCA9542APW,118
Stock:2500
Inv Date:06-09-2026
Price: Unit price: $1.08
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Part No:PCA9542APW,118
Stock:1132
Inv Date:06-10-2026
Price: N/A
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NXP PCA9542APW118 I2C Bus Multiplexer Specifications:

  • Supply Voltage: 2.3 V to 5.5 V
  • I2C-bus compatibility: 0 Hz to 400 kHz
  • Voltage translation support between 1.8 V, 2.5 V, 3.3 V, and 5 V
  • Active LOW interrupt inputs (INTO, INT1) and shared active LOW interrupt output (INT)
  • Low Ron switches for minimal voltage drop
  • Power-On Reset function resets registers at power-up
  • Supports hot insertion and low standby current
  • Packages offered: SO14, TSSOP14
  • ESD protection exceeding 2000 V HBM
  • Maximum junction temperature: 125°C
  • Thermal resistance: SO14 127°C/W, TSSOP14 175°C/W
  • Physical dimensions: SO14 – body width 3.9 mm, TSSOP14 – body width 4.4 mm

Buy the Buy NXP PCA9542A Part Number PCA9542APW118 Online

Enhance your electronics setup by purchasing the PCA9542A online. This 2-channel I2C-bus multiplexer with voltage translation, interrupt logic, and low ON-resistance switches ensures reliable channel control across different voltage levels. Perfect for complex systems requiring hot insertion, low standby current, and compatibility with clock frequencies up to 400 kHz. Available in compact SO14 and TSSOP14 packages, it provides robust ESD protection and power-on reset functionality, making it ideal for industrial and consumer applications requiring seamless I2C communication and voltage level management.

Buy NXP PCA9542A now and experience unmatched reliability and performance in voltage level translation and I2C device multiplexing for complex systems.

Frequently Asked Questions

Where can I buy NXP PCA9542APW118?

You can click on the BUY or RFQ button to purchase PCA9542APW118 from an authorized NXP distributor.

How do I troubleshoot issues or seek technical support for part PCA9542APW118?

You can download the PCA9542APW118 datasheet or visit the NXP website for support.

Who is the manufacturer of PCA9542APW118?

NXP

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