NXP Semiconductors MCZ33904C3EK

Overview

MCZ33904C3EK from NXP (formerly Freescale) is a second-generation automotive System Basis Chip (SBC) integrating high-speed CAN transceiver (ISO 11898-2/5), 5.0 V MCU supply regulator (VDD), 5.0 V auxiliary regulator (VAUX), internal 5.0 V CAN driver supply (VCAN), analog sensing MUX, and four configurable wake-up I/Os - used as power management unit in body control modules and door modules with S12x or MPC560x MCUs.

For engineers reviewing the MCZ33904C3EK datasheet, MCZ33904C3EK pinout, MCZ33904C3EK application, or MCZ33904C3EK equivalent, key selection criteria include its 5.0 V VDD output, ISO 11898-2/5 CAN compliance, 15 µA sleep current, SOIC-32EP package, and absence of LIN interface - distinguishing it from MC33905 and MC33903D variants.

Technical Context

The MCZ33904C3EK implements a fail-safe state machine linked to the SAFE pin, secured SPI with watchdog capability, and cranking pulse management that maintains degraded functionality during low-VSUP events. It supports ultra-low-power modes (15 µA with VDD off) and includes high-precision VSUP sense monitoring plus analog MUX for battery voltage, temperature, and input signal monitoring.

Unlike MC33905 variants, MCZ33904C3EK provides no LIN interface but delivers quad wake-up I/Os configurable as inputs or drivers. Its power architecture supplies VDD (5.0 V, up to 150 mA internal or 300 mA with external PNP), VAUX (5.0 V), and dedicated VCAN (5.0 V), all operating across 5.5–28 V input with 40 V load dump tolerance.

Key Specifications

Pinout & Package

MCZ33904C3EK is housed in a 32-pin SOIC wide-body package with exposed thermal pad (98ASA10556D footprint). Pin functions are validated per MC33904 Simplified Application Drawing and Freescale MC33903_4_5FS Rev. 6.0.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MCZ33904C3EK, MCZ33904B3EK offers verified improvements in oscillator jitter and sleep current, while MCZ33903C5EK sacrifices wake-up flexibility and analog monitoring to reduce cost and complexity - making MCZ33904C3EK optimal for mid-tier body modules needing four wake sources and full diagnostic capability.

Availability

MCZ33904C3EK is available at Aetrix Electronics and suitable for body control modules, door modules, seat modules, and lighting control modules requiring stable component supply, automotive-grade reliability, and long-term lifecycle support.

Supply support for MCZ33904C3EK 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 leader in automotive semiconductor solutions, delivering high-reliability analog, power management, and microcontroller products based on SMARTMOS technology.

The MC33904 belongs to NXP's System Basis Chip Gen2 family - designed specifically for automotive body, safety, and powertrain ECUs requiring integrated power regulation, high-speed CAN, and fail-safe supervision without LIN.

FAQ

What is the VDD output voltage and maximum current capability of the MCZ33904C3EK?

The MCZ33904C3EK provides a fixed 5.0 V VDD output with 150 mA internal current capability. It supports scalable power delivery up to 300 mA when an external PNP ballast transistor is added - enabling compatibility with higher-current S12x and MPC560x MCUs without redesigning the power stage. This dual-mode operation is confirmed in the MC33903_4_5FS datasheet Rev. 6.0.

Does the MCZ33904C3EK include a LIN interface?

No, the MCZ33904C3EK does not integrate any LIN transceiver. It is part of the MC33904 series, which is defined by single high-speed CAN and zero LIN channels - unlike MC33905 (dual LIN) or MC33903S (single LIN). The four I/O pins are configurable as wake-up inputs or LIN terminations, but LIN functionality is disabled in this variant.

What package type and pin count does the MCZ33904C3EK use?

The MCZ33904C3EK uses a 32-pin SOIC wide-body package with exposed thermal pad (footprint 98ASA10556D), as specified in Freescale documentation. This RoHS-compliant, Pb-free package supports automotive thermal and mechanical requirements, and is pin-compatible with other MC3390x variants in the same SOIC-32EP family.

What is the minimum operating supply voltage and how does the MCZ33904C3EK handle cranking conditions?

The MCZ33904C3EK operates down to 5.5 V, enabling reliable function during engine cranking. Its cranking pulse management circuitry maintains VDD regulation and CAN wake-up capability without external hold-up capacitors - reducing BOM cost and PCB area. This behavior is documented in the "Innovative Cranking Pulse Management" feature section of the MC33903_4_5FS datasheet.

How many wake-up sources does the MCZ33904C3EK support, and are they configurable?

The MCZ33904C3EK supports four dedicated wake-up I/Os (I/O-0 through I/O-3), all configurable as either wake-up inputs or output drivers. Unlike MC33903 variants with only one wake pin, this quad-wake capability enables flexible system-level event detection - such as door handle touch, key fob RF, or ambient light change - without adding external wake controllers. This is confirmed in the MC33904 Simplified Application Drawing.