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NXP Semiconductors MCZ33904D5EKR2
- Part No.:
- MCZ33904D5EKR2
- Manufacturer:
- NXP Semiconductors
- Category:
- Specialized
- Package:
- 32-SSOP (0.295", 7.50mm Width) Exposed Pad
- Datasheet:
-
MCZ33904D5EKR2.pdf
- Description:
- IC INTERFACE SPECIALIZED 32SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,745
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Product details
Overview
MCZ33904D5EKR2 from NXP Semiconductors is a second-generation System Basis Chip (SBC) integrating a 5.0 V MCU power regulator, high-speed CAN transceiver (ISO 11898-2/5), four programmable wake-up inputs, and SPI-based diagnostics - deployed in automotive ECU power management for battery-supplied microcontroller systems requiring fail-safe operation and low-power modes.
For engineers reviewing the MCZ33904D5EKR2 datasheet, MCZ33904D5EKR2 pinout, MCZ33904D5EKR2 application, or MCZ33904D5EKR2 equivalent, this device serves as a core power and communication interface IC in 12 V automotive modules where integrated CAN, configurable I/O, and ultra-low quiescent current in LP modes are critical selection criteria.
Technical Context
The MCZ33904D5EKR2 implements a SMARTMOS-based power management architecture with dual supply rails (VSUP1/VSUP2), an embedded ISO 11898-5 compliant CAN physical layer supporting 40 kb/s to 1 Mb/s, and a state machine-driven fail-safe operation that asserts SAFE (active-low) on VDD undervoltage, watchdog timeout, or RST pin fault. It lacks LIN interfaces but retains full SPI register access for diagnostics and configuration.
Its 32-pin SOIC exposed-pad package (SOT1746-3) supports thermal dissipation in engine bay environments, and all four I/O pins (I/O-0 to I/O-3) are configurable as wake-up inputs or high-side drivers - with cyclic sense capability during low-power VDD-on mode and no overtemperature protection when used as HS outputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDD Output | 5.0 V ±2%, 250 mA max - powers MCU directly; no external PNP support per datasheet note. |
| CAN Interface | ISO 11898-2 and -5 compliant, 40 kb/s–1 Mb/s baud rate - enables robust high-speed bus communication with local/bus fault diagnostics. |
| Quiescent Current (LP Mode) | <20 µA typical - sustains long-term battery-powered sleep states without significant drain. |
| Wake-up Inputs | 4 dedicated pins (I/O-0 to I/O-3) - each configurable as edge-sensitive input for CAN, SPI, timer, or I/O transition wake events. |
| Operating Temperature | −40 °C to +125 °C - qualified for under-hood automotive applications per AEC-Q100. |
| Supply Voltage Range | VSUP1/VSUP2: −0.3 V to 28 V DC, transient up to 40 V - withstands load dump and cold-crank conditions. |
| SPI Interface | Full-duplex, 4-wire (CS/SCLK/MOSI/MISO), 16-bit register map - enables real-time monitoring of VDD, VSENSE, temperature, and fault flags. |
Pinout & Package
MCZ33904D5EKR2 uses a 32-pin SOIC with exposed thermal pad (package code SOT1746-3), footprint-compatible with other 33903/4/5 family members. Pin assignments are validated per Figure 11 and Table 4 of NXP document MC33903_4_5 Rev. 15.0.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VSUP1 / VSUP2 | Battery Supply Input | Dual-input rail (internally connected); accepts 12 V nominal with 40 V load dump tolerance. |
| VDD | MCU Power Output | 5.0 V regulated output, 250 mA max - powers external microcontroller without external pass transistor. |
| CANH / CANL | CAN Bus Differential Pair | Direct connection to vehicle CAN bus; includes bus fault detection and fail-safe shutdown. |
| I/O-0 to I/O-3 | Configurable Wake-up/HS Driver | All four pins support wake-up in LP mode; can drive small loads as high-side switches with no OT protection. |
| SAFE | Fault Indicator Output | Open-drain active-low signal asserting on VDD UV, watchdog timeout, or RST pin failure. |
| MUX-OUT | Analog Monitoring Output | Configurable multiplexed output for MCU ADC reading of VDD, VSENSE, temperature, or internal reference. |
| SPI Pins (CS/SCLK/MOSI/MISO) | Configuration & Diagnostics Interface | Enables read/write access to 16-bit status/control registers including fault flags and voltage monitors. |
Key Features
| Feature | Design Value |
|---|---|
| Fail-safe state machine | Hardware-enforced safe state activation on VDD undervoltage, watchdog expiration, or RST pin anomaly - no software dependency. |
| Low-power mode control | Multiple LP modes with sub-20 µA quiescent current and configurable wake-up sources (CAN/LIN/SPI/I/O/timer). |
| Integrated CAN PHY | ISO 11898-5 compliant transceiver with bus short detection, dominant timeout, and local fault reporting via SPI. |
| Diagnostic MUX-OUT | Single-pin analog multiplexer enabling MCU ADC monitoring of VDD, VSENSE, die temperature, and internal references. |
| Robust supply protection | VSUP overvoltage (40 V transient), VDD undervoltage lockout, and overcurrent detection on VDD and VAUX rails. |
Applications
| Automotive Body Control Module (BCM) | Engine Control Unit (ECU) Power Management |
|---|---|
Use Scenario: Centralized power and communication interface for 12 V battery-fed microcontrollers in door modules, lighting controllers, or seat control units. IC Role / Device Role / Timing Role: Primary power regulator (VDD), CAN bus interface, and wake-up manager - replaces discrete LDO + CAN transceiver + GPIO expander. Use Value: Reduces BOM count by integrating 5 V regulation, CAN PHY, and 4 wake-up I/Os into one AEC-Q100-qualified package with <20 µA LP current. |
Use Scenario: Power management subsystem in engine control units requiring fail-safe reset signaling and diagnostic visibility during cranking. IC Role / Device Role / Timing Role: MCU supply regulator with cranking-aware undervoltage detection, SAFE output for system-level fault escalation, and VSENSE monitoring for battery health. Use Value: Maintains functional safety integrity during low-VBAT conditions (e.g., cold crank) via hardware-monitored VDD and SAFE assertion within 10 µs of fault detection. |
| Industrial Vehicle Telematics Gateway | Off-Highway Equipment Controller |
Use Scenario: CAN-to-MCU interface in telematics gateways installed in construction or agricultural vehicles operating in harsh EMI/noise environments. IC Role / Device Role / Timing Role: High-immunity CAN transceiver with bus fault diagnostics, plus regulated 5 V supply and wake-up I/Os for remote sensor polling. Use Value: Eliminates need for external CAN bus protection components while providing SPI-accessible fault logs (bus shorts, dominant timeouts) for predictive maintenance. |
Use Scenario: Power and communication hub in hydraulic valve controllers for tractors or harvesters exposed to wide temperature swings and vibration. IC Role / Device Role / Timing Role: Primary 5 V supply for MCU and sensors, CAN interface for actuator feedback, and wake-up I/Os for operator input detection during sleep. Use Value: Enables >1-year battery-backed sleep operation via 18 µA LP mode current and reliable wake-up from CAN messages or physical switch transitions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SBC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCZ33903D5EK/R2 | Same 32-pin SOIC package and 5.0 V VDD, but includes one LIN 2.1 interface and VSENSE monitoring - adds LIN master capability at cost of one I/O pin repurposed as LIN-T. | Suitable for modules requiring LIN communication (e.g., mirror or HVAC control), whereas MCZ33904D5EKR2 targets CAN-only designs needing maximum I/O flexibility. | Select MCZ33903D5EK/R2 only if LIN bus integration is required; otherwise MCZ33904D5EKR2 offers simpler configuration and dedicated wake-up I/Os. |
| MCZ33905DS5EK/R2 | 32-pin SOIC with 5.0 V VDD and single LIN 2.1 interface; differs in pinout (adds RXD-L/TXD-L) and includes VAUX/VSENSE/MUX-OUT - broader feature set but higher complexity. | Targeted at compact ECU designs needing both CAN and LIN, such as gateway nodes connecting multiple vehicle domains. | Choose MCZ33905DS5EK/R2 when dual-bus (CAN+LIN) functionality is mandatory; MCZ33904D5EKR2 remains optimal for cost-sensitive, CAN-centric applications. |
Compared with MCZ33903D5EK/R2 and MCZ33905DS5EK/R2, MCZ33904D5EKR2 delivers the leanest SBC configuration - omitting LIN entirely to maximize wake-up I/O count and simplify SPI register usage, making it ideal for CAN-only automotive modules prioritizing reliability, low IQ, and design simplicity.
Availability
MCZ33904D5EKR2 is available at Aetrix Electronics and suitable for automotive body control, engine management, industrial telematics, and off-highway equipment requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MCZ33904D5EKR2 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 company specializing in secure connectivity solutions for automotive, industrial, and IoT applications, with leadership in automotive processors and system basis chips.
The MCZ33904D5EKR2 belongs to NXP's SBC Gen2 family, designed specifically for automotive electronic control units requiring integrated power regulation, high-speed CAN, and fail-safe diagnostics in space-constrained, thermally demanding environments.
FAQ
What is the primary function of MCZ33904D5EKR2 in an automotive ECU?
The MCZ33904D5EKR2 serves as a System Basis Chip that integrates a 5.0 V MCU power regulator, ISO 11898-5-compliant CAN transceiver, four configurable wake-up I/Os, and SPI-based diagnostics. It replaces discrete power, interface, and monitoring components in automotive ECUs - reducing board space and improving system-level reliability through hardware-enforced fail-safe operation.
Does MCZ33904D5EKR2 support LIN communication?
No, MCZ33904D5EKR2 does not include any LIN interface. Per NXP's orderable part table (Table 2), the "MC33904" variant is explicitly defined as having zero LIN interfaces. This distinguishes it from MCZ33903D5EK/R2 (one LIN) and MCZ33905DS5EK/R2 (one LIN), making MCZ33904D5EKR2 the optimal choice for CAN-only automotive modules.
What is the maximum allowable supply voltage transient for MCZ33904D5EKR2?
MCZ33904D5EKR2 supports transient supply voltages up to 40 V on VSUP1/VSUP2 pins, as specified in Table 5 (Maximum Ratings) of the MC33903_4_5 datasheet. This rating ensures robust operation during automotive load dump events without requiring external TVS clamping beyond standard design practices.
Can MCZ33904D5EKR2 drive external loads directly using its I/O pins?
Yes - all four I/O pins (I/O-0 to I/O-3) on MCZ33904D5EKR2 can be configured as high-side drivers for small external loads. However, the datasheet explicitly states that no overtemperature protection is implemented in HS mode, and only basic short-to-GND detection is available. Load current must remain within safe SOA limits defined in the electrical characteristics.
How does the SAFE pin operate on MCZ33904D5EKR2?
The SAFE pin on MCZ33904D5EKR2 is an open-drain, active-low output that asserts during critical faults including VDD undervoltage, watchdog timeout, RST pin malfunction, or internal oscillator failure. Its response time is hardware-accelerated (<10 µs), enabling immediate system-level fault containment independent of MCU firmware execution - a key requirement for ASIL-B compliance pathways.
MCZ33904D5EKR2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 32-SSOP (0.295", 7.50mm Width) Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- System Basis Chip
- Interface:
- CAN
- Voltage - Supply:
- 5.5V ~ 28V
- Supplier Device Package:
- 32-SOIC-EP
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
MCZ33904D5EKR2 FAQ
1.How can I place an order for MCZ33904D5EKR2 through Aetrix?
Please submit a Request for Quotation (RFQ) for MCZ33904D5EKR2 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MCZ33904D5EKR2 reliable?
The price and inventory of MCZ33904D5EKR2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MCZ33904D5EKR2 is usually 5 days.
3.What payment methods are accepted for MCZ33904D5EKR2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MCZ33904D5EKR2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MCZ33904D5EKR2?
MCZ33904D5EKR2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MCZ33904D5EKR2 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MCZ33904D5EKR2?
For technical support, including MCZ33904D5EKR2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MCZ33904D5EKR2 requirements.
6.How does Aetrix verify that MCZ33904D5EKR2 is sourced from the original manufacturer or authorized distributors?
All MCZ33904D5EKR2 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MCZ33904D5EKR2 meets industry standards.
7.What is the process for return or replacement of MCZ33904D5EKR2?
All MCZ33904D5EKR2 units undergo pre-shipment inspection (PSI). If there is an issue with MCZ33904D5EKR2, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MCZ33904D5EKR2 part is unused and in its original packaging.
Return procedure for MCZ33904D5EKR2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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