Engine Control Integrated Circuit

Roll over image to zoom in

Block Diagram

NXP MC33800 Low Side Switch Block Diagram

NXP MC33800 Low Side Switch Block Diagram


Key Features

  • Wide operating voltage range, 5 < VPWR < 36 volts
  • Interfaces to 3.3 and 5 volt microprocessors via SPI protocol
  • Low, sleep mode, standby current, typically 10 uA.
  • Internal or external voltage reference
  • Internal oscillator with calibrate capability
  • Measures resistance to monitor HEGO sensors
  • CCDs have programmable current, dither frequency and amplitude
  • OSSs can be paralleled to increase current capability
  • GDs have programmable frequency and duty cycle PWM
  • All outputs controllable via serial and/or parallel inputs

Product Longevity Program

  • This product is included in the NXP Product Longevity Program ensuring a stable supply of products for your embedded designs. The MC33800 is included in the 15-year program

Part numbers include: MCZ33800EK.


Quick reference to our documentation types.

1-5 of 7 documents

Show All


Quick reference to our board types.

2 hardware offerings


Quick reference to our software types.

1 software file

Note: For better experience, software downloads are recommended on desktop.

Engineering Services

4 engineering services

To find additional partner offerings that support this product, visit our Partner Marketplace.


What do you need help with?