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NXP Semiconductors MCZ33905BS3EKR2
- Part No.:
- MCZ33905BS3EKR2
- Manufacturer:
- NXP Semiconductors
- Category:
- Specialized
- Package:
- 32-SSOP (0.295", 7.50mm Width) Exposed Pad
- Datasheet:
-
MCZ33905BS3EKR2.pdf
- Description:
- IC INTERFACE SPECIALIZED 32SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,097
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Product details
Overview
MCZ33905BS3EKR2 from NXP (formerly Freescale) is a second-generation System Basis Chip (SBC) integrating high-speed CAN, single LIN 2.1/J2602-2 transceiver, 3.3 V/150 mA MCU regulator, internal 5 V CAN supply, and fail-safe state machine for automotive body and safety modules. It supports ultra-low-power sleep mode (15 µA), cranking pulse management, and configurable wake-up I/Os in SOIC-32 EP package.
For engineers reviewing the MCZ33905BS3EKR2 datasheet, MCZ33905BS3EKR2 pinout, MCZ33905BS3EKR2 application, or MCZ33905BS3EKR2 equivalent, key selection criteria include LIN count, VDD output voltage, wake-up I/O flexibility, CAN/LIN compliance (ISO 11898-2/5, J2602-2), and functional safety features like SAFE pin-linked state machine and secured SPI with watchdog.
Technical Context
The MCZ33905BS3EKR2 implements a hardware-configurable fail-safe state machine tied to the SAFE pin, enabling programmable degraded-mode behavior during faults. Its CAN physical layer complies with ISO 11898-2 and -5, supporting data rates from 40 kB/s to 1 MB/s with bus failure diagnostics and local protection.
It integrates a 3.3 V linear regulator (VDD) rated for 150 mA (scalable to 300 mA with external PNP), a 5 V auxiliary regulator (VAUX), and a dedicated 5 V CAN regulator (VCAN). Analog monitoring includes VSENSE, MUX-OUT, and VSUP sensing with high-precision threshold detection for cranking events.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDD Output Voltage | 3.3 V ±2%, fixed output for MCU power supply |
| VDD Max Current | 150 mA internal; up to 300 mA with optional external PNP ballast transistor |
| CAN Interface | High-speed, ISO 11898-2 and -5 compliant, 40 kB/s–1 MB/s data rate |
| LIN Interface | Single LIN 2.1 / SAE J2602-2 transceiver, 10.4–20 kB/s (100 kB/s fast mode) |
| Sleep Current | 15 µA typical with VDD OFF, enabling ultra-low quiescent power in ECU standby |
| Operating Voltage | 5.5–28 V input range; withstands 40 V load dump per ISO 7637-2 |
| Temperature Range | −40 °C to +125 °C ambient, qualified for automotive under-hood and body applications |
Pinout & Package
MCZ33905BS3EKR2 is housed in a Pb-free 32-pin SOIC Wide-body package with exposed thermal pad (98ASA10556D), optimized for automotive thermal and EMC performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | MCU Power Supply Output | 3.3 V regulated output for microcontroller core logic |
| VCAN | CAN Transceiver Supply | Dedicated 5 V LDO for internal CAN driver stage |
| VAUX | Auxiliary Regulator Output | Configurable 3.3 V or 5.0 V supply for sensors or peripherals |
| SAFE | Fail-Safe State Machine Output | Open-drain signal indicating active fail-safe mode; drives external safety circuitry |
| INT | Interrupt Request Output | Active-low interrupt signaling CAN/LIN activity, fault conditions, or wake events |
| CS / SCLK / MOSI / MISO | SPI Interface | Secured SPI interface with parity checking and watchdog enable/disable control |
| I/O-0 to I/O-3 | Configurable Wake-Up Inputs / LIN Terminals | Four pins support either wake-up sensing or LIN master termination (3 WU + 1 LIN or 4 WU) |
| VSUP1 / VSUP2 | Battery Sense Inputs | High-precision analog inputs for battery voltage monitoring and cranking detection |
Key Features
| Feature | Design Value |
|---|---|
| Innovative Cranking Pulse Management | Enables continued operation of critical functions (e.g., CAN monitoring) during low-VSUP cranking without external capacitor |
| Secured SPI with Watchdog | Hardware-enforced register access with parity and configurable window/time-out watchdog for MCU supervision |
| Configurable Wake-Up I/O | Three pins support wake-up input mode; fourth supports LIN master termination-enabling flexible ECU architecture |
| High-Precision VSUP Sensing | Two independent analog sense inputs with 1% accuracy over temperature for robust battery monitoring |
| Fail-Safe State Machine | Hardware-based state controller linked to SAFE pin, allowing pre-programmed safe states without MCU intervention |
Applications
| Body Controller Module | Seat Module |
|---|---|
|
Use Scenario: Centralized power and communication management for door locks, windows, mirrors, and interior lighting in vehicle body electronics. IC Role / Device Role / Timing Role: Primary SBC providing regulated VDD for MCU, CAN connectivity to gateway, LIN interface to local actuators, and wake-up via door handle or key fob signals. Use Value: Reduces BOM count by integrating CAN PHY, LIN PHY, regulators, and fail-safe logic-eliminating discrete transceivers and LDOs while meeting ISO 11898-2 and J2602-2 compliance. |
Use Scenario: Power and communication hub for seat position memory, heating, and occupancy sensing in premium automotive seating systems. IC Role / Device Role / Timing Role: Supplies 3.3 V to seat MCU, powers CAN for vehicle network reporting, and drives LIN to seat motor drivers and heater elements. Use Value: Enables <15 µA sleep current to meet OEM ECU quiescent power targets, while configurable wake-up I/O supports multi-sensor trigger sources (e.g., pressure, position, temperature). |
| Lighting Control Module | Column Module |
|
Use Scenario: Intelligent headlamp and interior lighting control with adaptive driving beam (ADB) coordination and LIN-connected LED drivers. IC Role / Device Role / Timing Role: Provides stable 3.3 V MCU supply, CAN interface for ADB status reporting, and LIN master for LED driver configuration and diagnostics. Use Value: Integrated VCAN regulator ensures clean 5 V for CAN transceiver, minimizing noise coupling into sensitive LED current control paths. |
Use Scenario: Steering column ECU managing wiper, horn, turn signal, and paddle shifter interfaces with CAN backbone and LIN-connected switches. IC Role / Device Role / Timing Role: Delivers 3.3 V to column MCU, hosts LIN slave interface for switch clusters, and monitors battery voltage during cranking to maintain wiper function. Use Value: Cranking pulse management maintains LIN communication and basic wiper operation at VSUP down to 5.5 V-avoiding external hold-up capacitors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar System Basis Chip applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCZ33905CS3EKR2 | 5.0 V VDD output instead of 3.3 V; otherwise identical pinout, features, and package | Required when MCU or connected peripherals demand 5.0 V logic supply | Select MCZ33905CS3EKR2 only if target MCU requires 5.0 V VDD; verify compatibility with downstream 3.3 V peripherals. |
| MCZ33904B3EKR2 | No LIN interface; retains CAN, 3.3 V VDD, 4 wake-up I/Os, VAUX, VSENSE, and MUX | Suitable for CAN-only modules where LIN is not needed (e.g., simple sensor hubs) | Choose MCZ33904B3EKR2 to reduce cost and complexity when LIN functionality is unnecessary and four wake-up inputs are required. |
Compared with MCZ33905BS3EKR2, MCZ33905CS3EKR2 offers identical functionality at 5.0 V VDD-ideal for legacy 5 V MCUs-while MCZ33904B3EKR2 removes LIN but adds one more wake-up I/O, simplifying design where LIN is unused and lower system cost is prioritized.
Availability
MCZ33905BS3EKR2 is available at Aetrix Electronics and suitable for body controller modules, seat modules, lighting control units, and column modules requiring stable component supply, automotive qualification, and long-term lifecycle support.
Supply support for MCZ33905BS3EKR2 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, and mixed-signal ICs built on SMARTMOS technology for safety-critical vehicle systems.
The MC33903/4/5 family was designed as Gen2 System Basis Chips to consolidate power management, high-speed CAN, LIN, and functional safety features into a single package for body, safety, and powertrain ECUs.
FAQ
What is the maximum output current capability of the VDD regulator in MCZ33905BS3EKR2?
The MCZ33905BS3EKR2 provides a fixed 3.3 V VDD output rated for 150 mA continuous internal supply. With an optional external PNP ballast transistor, total VDD current can scale to 300 mA-supporting higher-power MCUs or additional integrated circuits without external regulators. This scalability is confirmed in the MC33905 family datasheet Rev. 6.0.
Does MCZ33905BS3EKR2 support both LIN 2.1 and SAE J2602-2 standards?
Yes, MCZ33905BS3EKR2's single LIN interface is fully compliant with both LIN 2.1 and SAE J2602-2 specifications, including data rates from 10.4 kB/s to 20 kB/s (100 kB/s in fast mode), bus fault protection, and slave node synchronization. This dual compliance is verified in Freescale's conformance reports and referenced in the MC33903_4_5FS datasheet.
How many wake-up inputs does MCZ33905BS3EKR2 support, and can they be reconfigured?
MCZ33905BS3EKR2 supports up to three dedicated wake-up inputs (I/O-0 to I/O-2), with I/O-3 configurable as either a fourth wake-up input or a LIN master termination. This flexibility-documented in the "I/O Wake-up Capability" table-is implemented via hardware strapping and enables adaptation to varying ECU sensor counts without PCB redesign.
What functional safety features are implemented in MCZ33905BS3EKR2?
MCZ33905BS3EKR2 includes a hardware-based fail-safe state machine linked to the SAFE pin, secured SPI with parity checking, advanced watchdog (time-out and window modes), and cranking pulse management that sustains critical functions during low-battery events. These features support ASIL-B decomposition in system-level safety architectures per ISO 26262.
Is MCZ33905BS3EKR2 pin-compatible with other members of the MC33905 family?
Yes, MCZ33905BS3EKR2 shares the same 32-pin SOIC-EP package and pinout with MCZ33905CS3EKR2, MCZ33905BS5EKR2, and MCZ33905CS5EKR2-enabling voltage- and feature-swappable designs. However, it is not pin-compatible with MC33905D variants (54-pin) or MC33904/3 families due to differing I/O counts and feature sets.
MCZ33905BS3EKR2 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:
- Obsolete
- Applications:
- System Basis Chip
- Interface:
- CAN, LIN
- Voltage - Supply:
- 5.5V ~ 28V
- Supplier Device Package:
- 32-SOIC-EP
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
MCZ33905BS3EKR2 FAQ
1.How can I place an order for MCZ33905BS3EKR2 through Aetrix?
Please submit a Request for Quotation (RFQ) for MCZ33905BS3EKR2 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 MCZ33905BS3EKR2 reliable?
The price and inventory of MCZ33905BS3EKR2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MCZ33905BS3EKR2 is usually 5 days.
3.What payment methods are accepted for MCZ33905BS3EKR2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MCZ33905BS3EKR2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MCZ33905BS3EKR2?
MCZ33905BS3EKR2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MCZ33905BS3EKR2 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 MCZ33905BS3EKR2?
For technical support, including MCZ33905BS3EKR2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MCZ33905BS3EKR2 requirements.
6.How does Aetrix verify that MCZ33905BS3EKR2 is sourced from the original manufacturer or authorized distributors?
All MCZ33905BS3EKR2 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 MCZ33905BS3EKR2 meets industry standards.
7.What is the process for return or replacement of MCZ33905BS3EKR2?
All MCZ33905BS3EKR2 units undergo pre-shipment inspection (PSI). If there is an issue with MCZ33905BS3EKR2, 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 MCZ33905BS3EKR2 part is unused and in its original packaging.
Return procedure for MCZ33905BS3EKR2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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