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NXP Semiconductors MCZ33903D5EKR2
- Part No.:
- MCZ33903D5EKR2
- Manufacturer:
- NXP Semiconductors
- Category:
- Specialized
- Package:
- 32-SSOP (0.295", 7.50mm Width) Exposed Pad
- Datasheet:
-
MCZ33903D5EKR2.pdf
- Description:
- IC INTERFACE SPECIALIZED 32SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,495
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Product details
Overview
MCZ33903D5EKR2 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 compliant), and no LIN interface - configured as the single-LIN-capable "D" variant with zero LIN channels. It delivers fail-safe operation, ultra-low quiescent current in LP modes, and supports automotive ECU power management in harsh environments. Used in industrial actuator controls and lamp/inductive load systems requiring diagnostics and wake-up flexibility.
For engineers reviewing the MCZ33903D5EKR2 datasheet, MCZ33903D5EKR2 pinout, MCZ33903D5EKR2 application, or MCZ33903D5EKR2 equivalent, this page provides verified technical context, real-world design meaning for key specs, validated pin functions, and confirmed alternative parts - all aligned to Rev. 15.0 (June 2023) official NXP documentation.
Technical Context
The MCZ33903D5EKR2 implements a SMARTMOS-based power management architecture with integrated CAN physical layer, configurable wake-up inputs (I/O-0 only), and a dedicated 5.0 V VDD regulator without external PNP support. Its fail-safe state machine monitors VDD, RST, watchdog timeout, and CAN bus integrity to assert SAFE (active-low) on fault.
It operates across -40 °C to +125 °C, supports CAN baud rates from 40 kb/s to 1.0 Mb/s, and features SPI-controlled diagnostics including MUX-OUT analog monitoring of internal supply rails and cyclic sense capability during LP VDD-on mode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDD Output | 5.0 V ±2%, fixed output - powers MCU directly; no external PNP support per datasheet note (2). |
| CAN Interface | ISO 11898-2 and -5 compliant high-speed CAN - enables robust automotive bus communication up to 1.0 Mb/s with local/bus fault diagnostics. |
| Quiescent Current (LP Mode) | <20 µA typical - enables long-term battery-powered sleep in ECUs without compromising wake-up responsiveness. |
| Wake-up Inputs | 1 dedicated I/O-0 pin - configurable as input for edge-triggered wake-up; no LIN bus wake-up (0 LIN channels). |
| Operating Temperature | -40 °C to +125 °C - qualified for under-hood automotive and industrial embedded applications. |
| VSUP Input Range | -0.3 V to 28 V DC, -0.3 V to 40 V transient - withstands automotive load dump and cold-crank conditions. |
| SAFE Output | Open-drain active-low fault indicator - asserts on VDD undervoltage, RST pin fault, or watchdog timeout to trigger system-level fail-safe response. |
Pinout & Package
MCZ33903D5EKR2 uses a 32-pin SOIC exposed pad package (SOT1746-3), Pb-free, with thermal pad for enhanced power dissipation in automotive modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VSUP | Battery Supply Input | Main power rail input (–0.3 V to 28 V); internally connects to VSUP1/VSUP2 for unified supply domain. |
| VDD | MCU Power Output | 5.0 V regulated output (±2%) - powers microcontroller core; no external PNP support per datasheet. |
| CANH / CANL | CAN Bus Differential Outputs | Direct connection to ISO 11898-2/5 compliant CAN bus; includes built-in bus fault detection and protection. |
| SAFE | Fault Indicator Output | Open-drain active-low signal - asserted on critical faults (VDD UV, RST anomaly, watchdog timeout) to initiate safe shutdown. |
| I/O-0 | Configurable Wake-up Pin | Programmable as input for edge-triggered wake-up in LP mode; supports cyclic sense when paired with internal timing logic. |
| INT / RST / CS / SCLK / MOSI / MISO | SPI & Control Interface | Standard 4-wire SPI (CS, SCLK, MOSI, MISO) with active-low INT and RST outputs - enables full register access and fault reporting. |
| MUX-OUT | Analog Monitoring Output | Multiplexed analog output - selectable via SPI to monitor VDD, VSUP, or internal reference for supply health diagnostics. |
Key Features
| Feature | Design Value |
|---|---|
| Fail-Safe State Machine | Hardware-enforced fault response - autonomously asserts SAFE on VDD undervoltage, RST pin failure, or watchdog timeout without MCU intervention. |
| Low-Power Mode Operation | <20 µA quiescent current - extends battery life in always-on vehicle modules while retaining CAN/LIN wake-up readiness (CAN-only wake-up enabled). |
| CAN Bus Diagnostics | Local and bus-level fault detection - identifies short-to-battery, short-to-ground, open-circuit, and dominant timeout on CANH/CANL. |
| SPI-Controlled Analog Monitoring | MUX-OUT with 8 selectable internal signals - enables real-time validation of VDD, VSUP, temperature, and regulator status via MCU ADC. |
| Robust Input Protection | VSUP rated to 40 V transient - survives automotive load dump events without external TVS, reducing BOM count and layout area. |
Applications
| Automotive ECU Power Management | Industrial Actuator Control |
|---|---|
|
Use Scenario: Centralized power and communication hub in body control modules (BCM) or gateway ECUs managing MCU, sensors, and actuators. IC Role / Device Role / Timing Role: System Basis Chip providing regulated 5.0 V MCU supply, CAN physical layer, and fail-safe monitoring - replaces discrete regulators, CAN transceivers, and supervision ICs. Use Value: Reduces component count by integrating power, communication, and safety functions into one AEC-Q100 qualified device with footprint compatibility across SBC Gen2 family. |
Use Scenario: Motor-driven valve or solenoid control in agricultural machinery where diagnostics and low-power sleep are critical. IC Role / Device Role / Timing Role: Power manager and CAN interface enabling precise actuator command delivery and real-time fault reporting over CAN bus. Use Value: Enables cyclic sense diagnostics during LP mode to verify actuator readiness without waking MCU - cuts average system current by >90%. |
| Lamp & Inductive Load Control | DC Motor Control with Diagnostics |
|
Use Scenario: LED headlamp driver module requiring overtemperature, short-circuit, and open-load detection. IC Role / Device Role / Timing Role: High-integrity power supervisor and CAN interface - monitors VDD stability, detects load faults via I/O-0 feedback, and reports status via CAN. Use Value: Eliminates need for separate voltage supervisors and CAN transceivers while delivering certified fault logging for ASIL-B–aligned designs. |
Use Scenario: Brushed DC motor controller in robotic joints needing stall detection, thermal monitoring, and CAN-based telemetry. IC Role / Device Role / Timing Role: Power regulator and communication interface - supplies MCU, conditions CAN signals, and feeds motor current sense data via MUX-OUT. Use Value: Provides real-time VDD and VSUP tracking to correlate motor surge events with supply droop - improves diagnostic accuracy without extra ADC channels. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar System Basis Chip applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCZ33903D3EKR2 | 3.3 V VDD output instead of 5.0 V; identical pinout, package, and feature set. | Required when interfacing with 3.3 V MCUs - no change to CAN, wake-up, or diagnostics functionality. | Select MCZ33903D3EKR2 only if target MCU requires 3.3 V supply; otherwise, MCZ33903D5EKR2 is optimal for 5 V MCU compatibility. |
| MCZ33903DP5EKR2 | Same 5.0 V VDD, but adds 3 wake-up inputs (I/O-0, I/O-2, I/O-3) and VSENSE monitoring - no MUX-OUT or VAUX. | Suitable for multi-sensor nodes needing broader wake-up sources and battery voltage sensing, but lacks analog multiplexing. | Choose MCZ33903DP5EKR2 when additional wake-up flexibility and direct VSENSE input are prioritized over MUX-OUT diagnostics capability. |
Compared with MCZ33903D3EKR2 and MCZ33903DP5EKR2, MCZ33903D5EKR2 uniquely balances 5.0 V MCU supply, minimal wake-up complexity (single I/O-0), and full MUX-OUT analog visibility - making it ideal for cost-sensitive, functionally focused ECU designs where 5 V operation and supply health monitoring are primary requirements.
Availability
MCZ33903D5EKR2 is available at Aetrix Electronics and suitable for automotive ECU power management, industrial actuator controls, and lamp/inductive load systems requiring stable component supply, AEC-Q100 qualification, and long-term lifecycle support.
Supply support for MCZ33903D5EKR2 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 automotive-grade mixed-signal ICs.
The MCZ33903D5EKR2 belongs to NXP's System Basis Chip Gen2 family - designed specifically for automotive electronic control units requiring integrated power regulation, high-speed CAN, fail-safe monitoring, and ultra-low-power operation in demanding environments.
FAQ
What is the VDD output voltage of MCZ33903D5EKR2, and can it be adjusted?
The MCZ33903D5EKR2 provides a fixed 5.0 V ±2% VDD output for MCU supply. It cannot be adjusted or configured to 3.3 V - that function is implemented in the pin-compatible MCZ33903D3EKR2 variant. External PNP transistor support is explicitly disabled for this part per datasheet Note 2.
Does MCZ33903D5EKR2 include a LIN interface?
No, MCZ33903D5EKR2 is the zero-LIN variant of the 33903 family. It contains no LIN transceiver circuitry or associated pins (LIN-1, LIN-2, TXD-L1, RXD-L1, etc.). This distinguishes it from MCZ33903DS5EKR2 (single LIN) and MCZ33903DD5EKR2 (dual LIN), which share the same 32-pin SOIC package.
How many wake-up inputs does MCZ33903D5EKR2 support, and what types are they?
MCZ33903D5EKR2 supports exactly one dedicated wake-up input: I/O-0. It is configurable as an edge-sensitive input in low-power modes. Unlike variants such as MCZ33903DP5EKR2, it does not support wake-up on LIN bus activity, CAN bus, SPI message, or timer - only I/O-0 transitions and RST pin assertion.
What package type and dimensions does MCZ33903D5EKR2 use?
MCZ33903D5EKR2 uses a 32-pin SOIC exposed pad package (SOT1746-3), Pb-free, with standard SOIC footprint and thermal pad for heatsinking. Dimensions match JEDEC MS-012AC, and it is footprint-compatible with MCZ33903D3EKR2, MCZ33903DS5EKR2, and MCZ33903DP5EKR2.
Is MCZ33903D5EKR2 qualified for automotive applications?
Yes, MCZ33903D5EKR2 is AEC-Q100 qualified for Grade 1 (-40 °C to +125 °C) operation and designed for automotive ECU use. It meets ISO 11898-2/5 for CAN, supports load dump (40 V transient), and includes fail-safe mechanisms required for functional safety compliance in ASIL-B–capable systems.
MCZ33903D5EKR2 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, LIN
- Voltage - Supply:
- 5.5V ~ 28V
- Supplier Device Package:
- 32-SOIC-EP
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
MCZ33903D5EKR2 FAQ
1.How can I place an order for MCZ33903D5EKR2 through Aetrix?
Please submit a Request for Quotation (RFQ) for MCZ33903D5EKR2 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 MCZ33903D5EKR2 reliable?
The price and inventory of MCZ33903D5EKR2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MCZ33903D5EKR2 is usually 5 days.
3.What payment methods are accepted for MCZ33903D5EKR2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MCZ33903D5EKR2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MCZ33903D5EKR2?
MCZ33903D5EKR2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MCZ33903D5EKR2 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 MCZ33903D5EKR2?
For technical support, including MCZ33903D5EKR2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MCZ33903D5EKR2 requirements.
6.How does Aetrix verify that MCZ33903D5EKR2 is sourced from the original manufacturer or authorized distributors?
All MCZ33903D5EKR2 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 MCZ33903D5EKR2 meets industry standards.
7.What is the process for return or replacement of MCZ33903D5EKR2?
All MCZ33903D5EKR2 units undergo pre-shipment inspection (PSI). If there is an issue with MCZ33903D5EKR2, 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 MCZ33903D5EKR2 part is unused and in its original packaging.
Return procedure for MCZ33903D5EKR2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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