Freescale Semiconductor MCZ33903C5EK

The MC33903 family combines microcontroller supply, high-speed CAN communication, low-power wake-up control, protection and supervision in one automotive system basis chip. The exact MCZ33903C5EK identity appears in NXP's part information and material declaration. NXP's current family data sheet no longer recommends C versions for new designs and lists D revisions as the current design direction.

The LCDChip catalog records 32-SSOP (0.295 inch, 7.50 mm width) Exposed Pad, mapped in the established package registry to 32-SSOP Exposed Pad. NXP's exact-part material declaration identifies HSOP32, SOT1746-3. These names are not proof of a common PCB footprint; reconcile NXP's controlled dimensions, lead pitch and thermal-pad drawing before layout.

Assembly checks

• Compare the exact SOT1746-3 mechanical drawing with the PCB footprint.
• Verify exposed-pad grounding and thermal design.
• Confirm material handling and moisture classification.

The registered JPG is absent locally and returns HTTP 404 on the production site. Hold publication until the image and package mapping are resolved.

Consult NXP's exact 32-pin diagram for physical numbering; the functional groups include:

Do not infer pin numbers or exposed-pad connections from this grouped summary.

NXP recommends D revisions for new designs, but that does not establish a drop-in replacement. Compare exact regulator output and current, SPI register behavior, CAN and wake-up features, reset thresholds, package drawings, thermal-pad layout and qualification before changing a design. No unverified internal substitute link is supplied.

NXP's exact-part page identifies MCZ33903C5EK, and its material declaration lists HSOP32/SOT1746-3. The MC33903/4/5 Rev. 15 family data sheet provides functional and pin descriptions while noting that C revisions are no longer recommended for new designs. Verify current lifecycle and mask-specific requirements with NXP.

Verify the full MCZ33903C5EK marking, traceability, revision, package drawing and handling records. Apply NXP's controlled qualification and errata documents to the intended automotive system; do not treat family-level data as an exact-lot certificate.

This draft does not replace controlled NXP documentation. The catalog/manufacturer package names require footprint reconciliation and the registered JPG is unavailable; keep the product under review and do not release the layout or publish the page until both issues are resolved.