NXP Semiconductors MCZ33903CP5EKR2

Overview

The MCZ33903CP5EKR2 from NXP (formerly Freescale) is a second-generation System Basis Chip (SBC) designed as an automotive power management and communication interface unit for MCU-based ECUs. It integrates a 5.0 V/150 mA MCU voltage regulator (VDD), high-speed CAN transceiver (ISO 11898-2/5 compliant), no LIN interface, one wake-up input, VSUP sense monitoring, and a fail-safe state machine - deployed in body control modules, seat modules, and lighting control units operating from 5.5–28 V supply.

For engineers reviewing the MCZ33903CP5EKR2 datasheet, MCZ33903CP5EKR2 pinout, MCZ33903CP5EKR2 application, or MCZ33903CP5EKR2 equivalent, key selection criteria include its 5.0 V VDD output with 150 mA internal current limit, absence of LIN transceivers, single wake-up capability, SOIC-32 exposed pad package, and support for cranking pulse management and ultra-low sleep current (15 µA).

Technical Context

This SBC implements a dedicated 5.0 V CAN regulator (5 V-CAN), VSUP sensing with analog MUX output, and a secured SPI interface with watchdog capability. Its fail-safe state machine is hardware-configurable via SAFE pin assertion and supports degraded operation during battery cranking pulses.

The device operates across –40 °C to +125 °C ambient, withstands 40 V load dump, and features ESD protection rated at ±8 kV (module level on CAN/LIN pins). It lacks VAUX, VSENSE, and MUX functionality - distinguishing it from MC33903S/D variants - and does not support external ballast transistor for VDD current boost.

Key Specifications

Pinout & Package

MCZ33903CP5EKR2 is housed in a Pb-free 32-pin SOIC Wide-body package with exposed thermal pad (98ASA10556D footprint). Pin functions are validated per MC33903P datasheet Rev. 6.0 and Freescale application drawings.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar SBC applications.

Compared with MCZ33903CP5EKR2, MCZ33903BS5EK/R2 offers voltage flexibility and analog monitoring at identical footprint, while MCZ33904B5EK/R2 trades single-wake simplicity for expanded wake-source scalability - both retain CAN compliance and 5.0 V VDD but differ in feature gating and I/O allocation.

Availability

MCZ33903CP5EKR2 is available at Aetrix Electronics and suitable for body controller modules, seat modules, and lighting control modules requiring stable component supply, AEC-Q100 Grade 1 qualification, and long-term automotive lifecycle support.

Supply support for MCZ33903CP5EKR2 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

NXP Semiconductors is a global semiconductor leader specializing in secure connectivity solutions for automotive, industrial, and IoT applications, with deep expertise in SMARTMOS analog-power integration.

The MC33903 family is part of NXP's System Basis Chip portfolio, engineered specifically for automotive electronic control units requiring integrated power regulation, high-speed CAN, and functional safety-aware system supervision.

FAQ

What is the maximum output current capability of the VDD regulator in MCZ33903CP5EKR2?

The MCZ33903CP5EKR2 provides a fixed 5.0 V VDD output with a maximum internal current capability of 150 mA. Unlike MC33903S/D variants, it does not support external ballast transistor implementation, so the 150 mA limit is absolute and cannot be extended. This makes MCZ33903CP5EKR2 suitable for low-to-mid power MCUs such as S08 or basic S12x derivatives, but not for higher-current MPC56xx devices without supplemental regulation.

Does MCZ33903CP5EKR2 include LIN transceiver functionality?

No, MCZ33903CP5EKR2 does not integrate any LIN transceiver. It belongs to the MC33903P subfamily, explicitly defined in Freescale documentation as having zero LIN interfaces. The "P" suffix denotes "no LIN", distinguishing it from MC33903S (single LIN) and MC33903D (dual LIN) variants. All LIN-related pins (LIN-1, LIN-2, LIN-T1, LIN-T2) are unconnected and unused in this variant.

What wake-up capabilities does MCZ33903CP5EKR2 support?

MCZ33903CP5EKR2 supports exactly one dedicated wake-up input pin (WAKE), configurable as an edge-sensitive interrupt source. It does not offer LIN or CAN bus wake capability - only local hardware wake events trigger exit from STOP mode. This aligns with its target use in cost-optimized, single-sensor ECUs like simple lighting nodes or column modules where minimal wake sources suffice.

Is MCZ33903CP5EKR2 qualified for automotive applications?

Yes, MCZ33903CP5EKR2 is AEC-Q100 qualified for Grade 1 operation (–40 °C to +125 °C ambient), with full compliance to ISO 11898-2/5 for CAN physical layer, ±8 kV HBM ESD rating, and validation against ISO 7637-2 load dump (40 V). It is designed for deployment in body, safety, and powertrain domains per Freescale's automotive enablement ecosystem documentation.

What package type and footprint does MCZ33903CP5EKR2 use?

MCZ33903CP5EKR2 uses a Pb-free 32-pin SOIC Wide-body package with exposed thermal pad, documented under Freescale part number 98ASA10556D. It shares the same mechanical footprint as MCZ33903BS5EK/R2 and MCZ33904B5EK/R2, enabling drop-in replacement within the same board layout when feature compatibility permits.