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NXP PCA9546APW118 I2C Bus Switch

The PCA9546A is a 4-channel I²C-bus switch with reset, designed for bidirectional voltage-level translation and bus segmentation. It allows communication between devices at different voltage levels such as 1.8 V, 2.5 V, 3.3 V, and 5 V, with built-in reset functionality to recover from stuck bus states. Suitable for a wide range of applications, including I²C multiplexing, the device features multiple packages like SO16, TSSOP16, and HVQFN16, supports hot insertion, and complies with SMBus standards. Its low Ron switches and power-on reset ensure reliable operation across various power supplies, with ESD protection exceeding 2000 V HBM.

Authorized Distributors
Source:Newark
Part No:PCA9546APW,118
Stock:1522
Inv Date:06-09-2026
Price: Unit price: $2.01
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Part No:PCA9546APW,118
Stock:24387
Inv Date:06-10-2026
Price: Unit price: $1.93
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Part No:PCA9546APW,118
Stock:15000
Inv Date:06-09-2026
Price: Unit price: $0.885
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Part No:PCA9546APW,118
Stock:2499
Inv Date:06-10-2026
Price: N/A
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NXP PCA9546APW118 I2C Bus Switch Specifications:

  • Supply Voltage Range: 2.3 V to 5.5 V
  • Max Junction Temperature: 125°C
  • Static Current: Typical 16-50 pA (Vpp = 3.6 V)
  • Input Voltage (SCL/SDA): -0.5 V to +6 V (max)
  • ON-State Resistance: 5 to 55 Ω (Vpp = 2.3 V to 3.6 V)
  • Voltage Level Translation: Supports 1.8 V, 2.5 V, 3.3 V, and 5 V buses
  • Bus Speed: 0 Hz to 400 kHz
  • Operating Temperature: -40°C to +85°C
  • ESD Protection: Exceeds 2000 V HBM
  • Power-Up Reset: All channels deselected, reset on power-up
  • Package Options: SO16, TSSOP16, HVQFN16
  • Maximum Power Dissipation: 400 mW
  • Reset Input: Active LOW, connected to Vpp via pull-up
  • Addressing: 3 address pins for up to 8 devices

Buy the NXP Series PCA9546A I2C Bus Switch: PCA9546APW118

Order the NXP PCA9546APW118 online today to experience efficient voltage level translation, bus segmentation, and reliable operation. Featuring reset capability, low ON-resistance switches, and multiple package options, ensuring compatibility with various designs and environments. Ideal for applications needing multiple voltage domains and hot insertion support, this device streamlines bus management in complex electronics systems. Secure your supply now for quick delivery and seamless integration into your projects, backed by trusted NXP quality standards.

Get NXP PCA9546APW118 today—built for reliable voltage-level translation and bus management with reset functionality.

Frequently Asked Questions

Where can I buy NXP PCA9546APW118?

You can click on the BUY or RFQ button to purchase PCA9546APW118 from an authorized NXP distributor.

How do I troubleshoot issues or seek technical support for part PCA9546APW118?

You can download the PCA9546APW118 datasheet or visit the NXP website for support.

Who is the manufacturer of PCA9546APW118?

NXP

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