This part is a kind of semiconductor called 33385.

Function of this product has Quad Low-side Driver.

Manufacturers : Freescale Semiconductor

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Some of the text within the PDF file :

Freescale Semiconductor Technical Data Document Number: MC33385 Rev. 6.0, 11/2006 Quad Low-side Driver The MC33385 is a Quad Low-side Driver fully protected switch. This device is a general purpose Low-side Driver but has been especially designed to operate in engine management applications as injector driver or automotive gear box. It is interfaced directly with a microcontroller for parallel control of the load and the individual output diagnostic is done through a SPI. The diagnostic logic recognizes 4 failure types at each output stage: overcurrent, short to GND, open load, and over-temperature. Features • RDSON of 250mΩ per Output at 25°C • Supplied from the main 5V VCC • Input CMOS Compatible • Diagnostic through SPI • Nominal Current of 2A per Out [ ... ]

33385 PDF Datasheet Download