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NXP MC33972ATEKR2 Switch Detection IC

The MC33972 is an advanced integrated circuit designed for low-power switch detection and monitoring in automotive and industrial systems. It features 8 programmable switch inputs, 14 switch-to-ground inputs, along with a 22-to-1 analog multiplexer for sensor readings. The device operates between 5.5 V and 26 V and supports both Normal and Sleep modes for energy efficiency. It provides thermal monitoring, programmable wetting currents, wake-up control, and interface via SPI for seamless system integration, making it ideal for robust, low-current applications requiring switch or sensor interfacing.

Authorized Distributors
Source:DigiKey
Part No:MC33972ATEKR2
Stock:100
Inv Date:06-09-2026
Price: N/A
Buy/RFQ:
Part No:MC33972ATEKR2
Stock:0
Inv Date:06-10-2026
Price: N/A
Buy/RFQ:

NXP MC33972ATEKR2 Switch Detection IC Specifications:

  • Supply Voltage Range: 8.0 V to 26 V (quasi-functional), 5.5 V to 8.0 V (partial), 26 V to 40 V (quasi-functional)
  • Maximum Switch Input Voltage: ±40 V (transients); continuous range: -14 V to 40 V
  • Operating Temperature: -40°C to 125°C
  • Supply Current: Normal mode approximately 4.0 mA, Sleep mode approximately 20 μA
  • Switch Inputs: 8 programmable (switch-to-battery or ground), 14 switch-to-ground inputs
  • Analog Multiplexer: 22 channels, buffered output, maximum VDD clamp
  • SPI Communication: Up to 6 MHz, 24-bit transfer
  • Power Dissipation: 17 W at 25°C junction
  • Thermal Resistance: Junction to Ambient 74 K/W, Junction to Exposed Pad 412 K/W
  • Protection: External reverse battery and transient protection on VPWR, ESD human body model up to 2000 V

Buy the Freescale MC33972ATEKR2 – Reliable Switch Detection for Industrial Applications

Order the Freescale MC33972ATEKR2 today and enhance your system's switch monitoring capabilities. This low-power IC supports multiple switch inputs, analog sensor readings, and thermal monitoring, suitable for automotive, industrial, and sensor applications. Its flexible SPI interface allows fast communication up to 6 MHz. With robust protection features, programmable wetting current, and sleep modes, it ensures energy efficiency and system reliability. Purchase online now to ensure your project benefits from advanced switch detection technology with easy integration and high accuracy.

Buy Freescale MC33972ATEKR2 now and experience unmatched reliability and precise switch detection in automotive and industrial systems.

Frequently Asked Questions

Where can I buy NXP MC33972ATEKR2?

You can click on the BUY or RFQ button to purchase MC33972ATEKR2 from an authorized NXP distributor.

How do I troubleshoot issues or seek technical support for part MC33972ATEKR2?

You can download the MC33972ATEKR2 datasheet or visit the NXP website for support.

Who is the manufacturer of MC33972ATEKR2?

NXP

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