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NXP MC33975TEKR2 Switch Detection IC

The MC33975TEKR2 is a high-performance switch detection interface IC designed for automotive and industrial control systems. It features 8 programmable switch inputs capable of detecting switch-to-ground or switch-to-battery contacts, plus 14 switch-to-ground inputs, all with configurable wetting currents up to 32 mA or 4 mA. Equipped with a 22-to-1 analog multiplexer for reading sensor inputs as analog signals, it supports low power sleep modes and active temperature monitoring for power management. Ideal for systems requiring switch status verification, sensor power supply, and MOSFET driver functionalities, offering robust SPI communication and flexible configuration options.

Authorized Distributors
Part No:MC33975TEKR2
Stock:0
Inv Date:06-10-2026
Price: N/A
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NXP MC33975TEKR2 Switch Detection IC Specifications:

  • Operating Voltage Range: 5.5 V to 28 V (full operation), -14 to 38 V (board inputs)
  • Switch Inputs: 8 programmable (switch-to-ground/battery), 14 switch-to-ground only
  • Wetting Current: 2.0/4.0 mA or 16/32 mA configurable per input
  • Analog Multiplexer: 22-to-1, buffered output up to VDD maximum voltage
  • Sleep Mode Current: as low as 100 pA Vpp, 20 pA Vdd in sleep mode
  • Operating Temp: -40°C to +125°C, Junction up to +150°C
  • Package: 32-pin SOIC with exposed pad
  • SPI Communication: Up to 60 MHz, 24-bit data transfer, support for multiple ICs in system
  • Temperature Monitoring: Active in normal mode, alerts via SPI and interrupt pin
  • Power Supply: VPWR 5.5-28 V, logic VDD 3.3/5 V, external reverse battery protection required

Buy the Buy Freescale MC33975TEKR2 Part Number MC33975TEKR2 Online

Order the Freescale MC33975TEKR2 today to enhance your control system with advanced switch detection, robust analog multiplexing, and ultra-low sleep current. This versatile IC supports multiple switch inputs with configurable wetting currents up to 32 mA for metallic contacts and includes an integrated temperature monitor. Ideal for automotive, industrial, and process control systems, it provides reliable SPI communication, multiple power modes, and flexible configuration options to optimize your system performance and power efficiency. Purchase online now for fast, dependable delivery.

Get Freescale MC33975TEKR2 today—built for precision switch detection, analog input reading, and low power industrial and automotive control applications.

Frequently Asked Questions

Where can I buy NXP MC33975TEKR2?

You can click on the BUY or RFQ button to purchase MC33975TEKR2 from an authorized NXP distributor.

How do I troubleshoot issues or seek technical support for part MC33975TEKR2?

You can download the MC33975TEKR2 datasheet or visit the NXP website for support.

Who is the manufacturer of MC33975TEKR2?

NXP

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