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NXP Semiconductors MCZ33904D3EKR2
- Part No.:
- MCZ33904D3EKR2
- Manufacturer:
- NXP Semiconductors
- Category:
- Specialized
- Package:
- 32-SSOP (0.295", 7.50mm Width) Exposed Pad
- Datasheet:
-
MCZ33904D3EKR2.pdf
- Description:
- IC INTERFACE SPECIALIZED 32SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,654
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Product details
Overview
MCZ33904D3EKR2 from NXP Semiconductors is a System Basis Chip (SBC) Gen2 integrating a 3.3 V MCU power regulator, high-speed CAN transceiver (ISO 11898-2/5), four programmable wake-up inputs, and analog monitoring via MUX-OUT. It operates in ultra-low-power modes with <10 µA quiescent current and supports automotive ECU power management in harsh environments.
For engineers reviewing the MCZ33904D3EKR2 datasheet, MCZ33904D3EKR2 pinout, MCZ33904D3EKR2 application, or MCZ33904D3EKR2 equivalent, this device serves as a complete power + communication hub for CAN-based ECUs requiring diagnostics, fail-safe operation, and flexible I/O wake-up control without LIN interface support.
Technical Context
The MCZ33904D3EKR2 implements a state-machine-driven fail-safe architecture with dedicated SAFE output asserting low on VDD undervoltage, watchdog timeout, or RST pin fault. Its embedded CAN physical layer complies with ISO 11898-5 for baud rates from 40 kb/s to 1 Mb/s and includes bus-failure diagnostics, short-to-battery/ground detection, and thermal protection.
Power management integrates a 3.3 V/300 mA main regulator (VDD), a 5 V/100 mA CAN driver supply (5V-CAN), and MUX-OUT for real-time monitoring of VDD, VSUP, temperature, or internal reference - all configurable via SPI with interrupt-driven status reporting.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDD Output | 3.3 V ±2%, 300 mA max - powers MCU core logic with overcurrent/thermal shutdown |
| CAN Interface | ISO 11898-2 & -5 compliant, 40 kb/s–1 Mb/s - enables robust automotive network communication with bus fault diagnostics |
| Quiescent Current (LP Mode) | <10 µA at VDD = 3.3 V - extends battery life in always-on ECU sleep states |
| Wake-up Inputs | 4 configurable I/O pins (I/O-0 to I/O-3) - support edge-triggered wake from LP mode via CAN, SPI, timer, or external transition |
| MUX-OUT Monitoring | Configurable analog multiplexer output - enables MCU ADC reading of VDD, VSUP, die temp, or reference voltage without external components |
| Operating Temperature | −40 °C to +125 °C - qualified for under-hood automotive applications per AEC-Q100 Grade 1 |
| Package | 32-pin SOIC exposed pad (SOT1746-3) - provides thermal performance for sustained 300 mA load with PCB copper pour |
Pinout & Package
MCZ33904D3EKR2 uses a 32-pin SOIC exposed pad package (SOT1746-3) with GND-connected lead frame for thermal dissipation. Pin compatibility is maintained across MC33903/4/5 family members in this footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VSUP1 | Battery Supply Input | Main input for internal regulators and POR circuitry; rated −0.3 V to 28 V DC, 40 V transient |
| VDD | MCU Power Output | 3.3 V regulated output (300 mA); monitored for undervoltage and overcurrent faults |
| CANH / CANL | CAN Bus Differential Pair | Direct connection to vehicle CAN bus; integrated termination and bus-fault protection |
| SAFE | Failsafe Alert Output | Open-drain active-low signal indicating critical fault (e.g., VDD UV, watchdog timeout, RST anomaly) |
| I/O-0 to I/O-3 | Programmable Wake-up I/O | Configurable as input (wake source) or HS output (small-load switch); no overtemperature protection in HS mode |
| MUX-OUT | Analog Monitoring Output | Switchable output to MCU ADC for VDD, VSUP, temperature, or reference voltage sensing |
| SPI Pins (CS/SCLK/MOSI/MISO) | Configuration & Diagnostics Interface | Full-duplex SPI (up to 2 MHz) for register access, status readback, and fault flag clearing |
| INT / RST | Interrupt & MCU Reset | INT signals enabled events (e.g., wake, fault); RST drives MCU reset with internal pull-up and external reset detection |
Key Features
| Feature | Design Value |
|---|---|
| Failsafe State Machine | Dedicated hardware state machine asserts SAFE pin on VDD undervoltage, watchdog timeout, or RST pin fault - independent of MCU firmware |
| Ultra-Low-Power LP Modes | Sub-10 µA quiescent current in VDD-ON LP mode enables multi-year battery operation in always-on telematics modules |
| Integrated CAN Transceiver | Meets ISO 11898-5 for high-speed CAN up to 1 Mb/s with bus-short diagnostics, thermal shutdown, and ESD protection (±8 kV HBM) |
| Configurable Analog Monitoring | MUX-OUT supports 8 selectable internal analog sources (VDD, VSUP, temp, ref) - eliminates need for external sense resistors or op-amps |
| Four Wake-up Inputs | I/O-0 to I/O-3 support edge-triggered wake from LP mode via CAN activity, SPI transaction, timer expiry, or external signal transition |
Applications
| Body Control Module (BCM) | Engine Control Unit (ECU) |
|---|---|
Use Scenario: Centralized power and communication management for door locks, lighting, and window controls in 12 V automotive platforms. IC Role / Device Role / Timing Role: SBC provides regulated 3.3 V MCU supply, CAN interface, and wake-up capability from key fob or door handle sensors. Use Value: Reduces BOM count by integrating power, CAN PHY, and diagnostics - eliminates discrete LDO, CAN transceiver, and wake-up supervisor ICs. | Use Scenario: Low-power standby operation during engine-off periods while maintaining CAN bus listen mode for remote start commands. IC Role / Device Role / Timing Role: MCZ33904D3EKR2 manages VDD regulation, monitors VSUP during cranking, and wakes MCU on CAN message receipt. Use Value: Sub-10 µA LP mode current ensures battery drain remains below 1 mA over 30-day parking - prevents deep discharge. |
| Industrial Actuator Controller | Lamp & Inductive Load Control |
Use Scenario: Power management and CAN communication for hydraulic valve controllers in agricultural machinery operating at −40 °C to +125 °C. IC Role / Device Role / Timing Role: Supplies 3.3 V to ARM Cortex-M MCU, interfaces to CAN bus for command reception, and monitors supply voltage during engine cranking transients. Use Value: Built-in undervoltage detection with multiple thresholds prevents MCU brownout during 6 V cranking dips - avoids erratic actuator behavior. | Use Scenario: Driving LED headlamps and solenoid-based fog lamps with diagnostic feedback in automotive lighting modules. IC Role / Device Role / Timing Role: Uses I/O-0 to I/O-3 as high-side switches for lamp control; monitors load current via MUX-OUT and reports open/short faults via SPI. Use Value: Integrated short-to-ground detection on I/O pins enables real-time lamp fault logging without external current-sense amplifiers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SBC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCZ33903D3EK/R2 | Same 32-pin SOIC package and 3.3 V VDD, but only 1 wake-up input and no VAUX/VSENSE/MUX features | Targeted for simpler, cost-sensitive ECUs where full 4-input wake capability and analog monitoring are unnecessary | Select MCZ33903D3EK/R2 only if wake-up count and diagnostic depth can be reduced without compromising system responsiveness |
| MCZ33904D5EK/R2 | Identical functionality and pinout, but delivers 5.0 V (±2%) VDD output instead of 3.3 V | Required when interfacing with legacy 5 V MCUs or peripherals incompatible with 3.3 V logic levels | Choose MCZ33904D5EK/R2 when MCU or attached sensors require 5 V supply - no PCB changes needed due to pin compatibility |
Compared with MCZ33904D3EKR2, MCZ33903D3EK/R2 reduces wake-up flexibility and monitoring capability for lower-cost implementations, while MCZ33904D5EK/R2 maintains identical feature set with higher VDD voltage - enabling direct migration for 5 V MCU designs without layout revision.
Availability
MCZ33904D3EKR2 is available at Aetrix Electronics and suitable for automotive body control modules, industrial actuator controllers, and lamp control systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MCZ33904D3EKR2 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 CAN, SBC, and automotive-grade power management.
The MC33903/4/5 family was designed as second-generation System Basis Chips to consolidate power regulation, high-speed CAN, and intelligent wake-up into a single AEC-Q100 qualified device for next-generation automotive ECUs.
FAQ
What is the primary function of the MCZ33904D3EKR2 in an automotive ECU?
The MCZ33904D3EKR2 serves as a System Basis Chip that integrates a 3.3 V MCU power regulator, ISO 11898-5-compliant high-speed CAN transceiver, four programmable wake-up inputs, and analog monitoring via MUX-OUT. It replaces multiple discrete components in automotive electronic control units, providing centralized power management, communication, and diagnostics while meeting AEC-Q100 Grade 1 requirements.
Does the MCZ33904D3EKR2 support LIN communication?
No, the MCZ33904D3EKR2 does not include LIN interface capability. Per NXP's orderable part table, MCZ33904D3EKR2 is the zero-LIN variant of the MC33903/4/5 family. It provides four wake-up inputs and full CAN functionality but omits LIN transceivers and associated pins - distinguishing it from MCZ33903DS3EK/R2 (single LIN) and MCZ33905DD3EK/R2 (dual LIN).
What wake-up sources are supported by the MCZ33904D3EKR2 in low-power mode?
The MCZ33904D3EKR2 supports wake-up from low-power mode via four dedicated I/O pins (I/O-0 to I/O-3), CAN bus activity, SPI message reception, internal automatic timer expiry, and VDD overcurrent detection. Each I/O pin can be individually configured as an edge-sensitive wake-up input, enabling flexible system-level event triggering without MCU intervention.
How does the SAFE pin operate on the MCZ33904D3EKR2?
The SAFE pin on the MCZ33904D3EKR2 is an open-drain active-low output that asserts during critical fault conditions including VDD undervoltage, watchdog timeout, RST pin malfunction, or internal oscillator failure. It is driven by a dedicated hardware state machine independent of MCU firmware, ensuring fail-safe behavior even if the host processor is nonfunctional. The pin requires an external pull-up resistor to VDD.
Is the MCZ33904D3EKR2 pin-compatible with other devices in the MC33903/4/5 family?
Yes, the MCZ33904D3EKR2 uses the 32-pin SOIC exposed pad package (SOT1746-3) and shares identical pinout with MCZ33903D3EK/R2, MCZ33903DS3EK/R2, and MCZ33903P3EK/R2. This pin compatibility allows hardware reuse across variants differing in LIN count, wake-up input count, and auxiliary monitoring features - simplifying platform design and reducing PCB inventory.
MCZ33904D3EKR2 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
MCZ33904D3EKR2 FAQ
1.How can I place an order for MCZ33904D3EKR2 through Aetrix?
Please submit a Request for Quotation (RFQ) for MCZ33904D3EKR2 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 MCZ33904D3EKR2 reliable?
The price and inventory of MCZ33904D3EKR2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MCZ33904D3EKR2 is usually 5 days.
3.What payment methods are accepted for MCZ33904D3EKR2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MCZ33904D3EKR2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MCZ33904D3EKR2?
MCZ33904D3EKR2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MCZ33904D3EKR2 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 MCZ33904D3EKR2?
For technical support, including MCZ33904D3EKR2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MCZ33904D3EKR2 requirements.
6.How does Aetrix verify that MCZ33904D3EKR2 is sourced from the original manufacturer or authorized distributors?
All MCZ33904D3EKR2 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 MCZ33904D3EKR2 meets industry standards.
7.What is the process for return or replacement of MCZ33904D3EKR2?
All MCZ33904D3EKR2 units undergo pre-shipment inspection (PSI). If there is an issue with MCZ33904D3EKR2, 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 MCZ33904D3EKR2 part is unused and in its original packaging.
Return procedure for MCZ33904D3EKR2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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