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                                                                                                      1. Home
                                                                                                      2. Semiconductors - ICs
                                                                                                      3. Drivers & Interfaces
                                                                                                      4. Specialised Interfaces
                                                                                                      Print Page

                                                                                                      MC33975ATEK

                                                                                                      Specialized Interface, SPI

                                                                                                      NXP MC33975ATEK
                                                                                                      Image is for illustrative purposes only. Please refer to product description.
                                                                                                      ManufacturerNXP
                                                                                                      Manufacturer Part NoMC33975ATEK
                                                                                                      Order Code2890506
                                                                                                      Technical Datasheet

                                                                                                      Data Sheet

                                                                                                      See all Technical Docs
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                                                                                                      Product Information

                                                                                                      ManufacturerNXP
                                                                                                      Manufacturer Part NoMC33975ATEK
                                                                                                      Order Code2890506
                                                                                                      Technical Datasheet

                                                                                                      Data Sheet

                                                                                                      IC Interface TypeSPI
                                                                                                      Interface ApplicationsAutomotive Systems, Industrial Control Systems, Process Control & Security Systems
                                                                                                      Supply Voltage Min5.5V
                                                                                                      Supply Voltage Max28V
                                                                                                      Interface Case StyleHSOIC
                                                                                                      No. of Pins32Pins
                                                                                                      Operating Temperature Min-40°C
                                                                                                      Operating Temperature Max125°C
                                                                                                      Product Range-
                                                                                                      Automotive Qualification Standard-
                                                                                                      MSLMSL 3 - 168 hours
                                                                                                      SVHCNo SVHC (27-Jun-2024)

                                                                                                      Product Overview

                                                                                                      MC33975ATEK is a multiple switch detection interface with suppressed wakeup designed to detect the closing and opening of up to 22 switch contacts. The switch status, either open or closed, is transferred to the microprocessor unit (MCU) through a serial peripheral interface (SPI). The device also features a 22-to-1 analogue multiplexer for reading inputs as analogue. It has two modes of operation, Normal and Sleep. Normal mode allows programming of the device and supplies switch contacts with pull-up or pull-down current as it monitors the switch change of state. The Sleep mode provides low quiescent current, which makes the 33975 ideal for automotive and industrial products requiring low sleep state currents. The application includes automotive systems, industrial control systems, process control systems, security systems, and systems requiring switch status verification for safety, operation, or process control purposes.

                                                                                                      • Designed to operate from 5.5V <lt/> VPWR <lt/> 28V
                                                                                                      • Switch input voltage range from -14 to 40V
                                                                                                      • Interfaces to microprocessor using 3.3V/5.0V SPI protocol
                                                                                                      • 14 switch-to-ground inputs, 8 programmable inputs (switches to battery or ground)
                                                                                                      • Sleep state current VPWR 100µA, VDD 20µA
                                                                                                      • Supply voltage range from 8.0 to 28V (fully operational, f 3.0 to 5.5V, TA = 25°C)
                                                                                                      • VPWR supply voltage power on reset range from 4.2 to 5.0V (TA = 25°C)
                                                                                                      • Logic supply voltage range from 3.0 to 5.5V (TA = 25°C)
                                                                                                      • Switch detection threshold range from 3.70 to 4.3V (TA = 25°C)
                                                                                                      • 32 pin SOICW EP package, ambient temperature range from -40 to 125°C

                                                                                                      Technical Specifications

                                                                                                      IC Interface Type

                                                                                                      SPI

                                                                                                      Supply Voltage Min

                                                                                                      5.5V

                                                                                                      Interface Case Style

                                                                                                      HSOIC

                                                                                                      Operating Temperature Min

                                                                                                      -40°C

                                                                                                      Product Range

                                                                                                      -

                                                                                                      MSL

                                                                                                      MSL 3 - 168 hours

                                                                                                      Interface Applications

                                                                                                      Automotive Systems, Industrial Control Systems, Process Control & Security Systems

                                                                                                      Supply Voltage Max

                                                                                                      28V

                                                                                                      No. of Pins

                                                                                                      32Pins

                                                                                                      Operating Temperature Max

                                                                                                      125°C

                                                                                                      Automotive Qualification Standard

                                                                                                      -

                                                                                                      SVHC

                                                                                                      No SVHC (27-Jun-2024)

                                                                                                      Technical Docs (2)

                                                                                                      Product Change Notice EN

                                                                                                      Technical Data Sheet EN

                                                                                                      Legislation and Environmental

                                                                                                      Country of Origin:
                                                                                                      Country in which last significant manufacturing process was carried outCountry of Origin:
                                                                                                      China
                                                                                                      Country in which last significant manufacturing process was carried out
                                                                                                      Tariff No:85365090
                                                                                                      US ECCN:EAR99
                                                                                                      EU ECCN:NLR
                                                                                                      RoHS Compliant:Yes

                                                                                                      RoHS

                                                                                                      RoHS Phthalates Compliant:Yes

                                                                                                      RoHS

                                                                                                      SVHC:No SVHC (27-Jun-2024)
                                                                                                      Download Product Compliance Certificate

                                                                                                      Product Compliance Certificate

                                                                                                      Weight (kg):.0003
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