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NXP Semiconductors MCZ33905DD5EKR2
- Part No.:
- MCZ33905DD5EKR2
- Manufacturer:
- NXP Semiconductors
- Category:
- Specialized
- Package:
- 54-SSOP (0.295", 7.50mm Width) Exposed Pad
- Datasheet:
-
MCZ33905DD5EKR2.pdf
- Description:
- IC INTERFACE SPECIALIZED 54SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,163
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Product details
Overview
MCZ33905DD5EKR2 from NXP Semiconductors is a second-generation System Basis Chip (SBC) integrating high-speed CAN (ISO 11898-2/5), dual LIN 2.1 interfaces, 5.0 V MCU supply regulator, auxiliary 5.0 V regulator, and four configurable wake-up/I/O pins. It delivers fail-safe power management and diagnostics for automotive ECU designs operating from -40 °C to 125 °C.
For engineers reviewing the MCZ33905DD5EKR2 datasheet, MCZ33905DD5EKR2 pinout, MCZ33905DD5EKR2 application, or MCZ33905DD5EKR2 equivalent, this device supports CAN/LIN coexistence in compact ECUs, provides SPI-configurable regulators with overcurrent/undervoltage protection, and enables low-power mode wake-up via bus activity, I/O transitions, or timer events.
Technical Context
The MCZ33905DD5EKR2 implements a SMARTMOS-based power management architecture with integrated CAN physical layer compliant to ISO 11898-5 (40 kb/s–1.0 Mb/s), two independent LIN 2.1 transceivers with programmable termination, and a state machine-driven fail-safe operation. Its LP modes achieve ultra-low quiescent current while maintaining diagnostic readiness.
It features dual regulated outputs: a primary 5.0 V/300 mA VDD regulator for MCU supply and an auxiliary 5.0 V/150 mA VAUX regulator for peripheral ICs - both with undervoltage detection, overcurrent protection, and thermal monitoring. The MUX-OUT pin enables real-time analog monitoring of VDD, VSUP, temperature, and internal diagnostics via SPI selection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CAN Interface | ISO 11898-2 and -5 compliant; supports baud rates 40 kb/s to 1.0 Mb/s with bus fault diagnostics and fail-safe operation. |
| LIN Interfaces | Dual LIN 2.1 channels with programmable master termination on LIN-T1/LIN-T2 pins; J2602-2 compatible. |
| VDD Regulator Output | 5.0 V ±2%, 300 mA max; supplies MCU core; includes voltage/current/temperature protection and cranking-mode undervoltage detection. |
| Auxiliary Regulator | 5.0 V ±2%, 150 mA max; powers external ICs; features overcurrent detection and undervoltage lockout. |
| Wake-up Inputs | Four configurable pins (I/O-0 to I/O-3); support CAN/LIN bus activity, I/O edge, SPI message, timer, or VDD overcurrent as wake sources in LP modes. |
| Operating Temperature | -40 °C to +125 °C ambient; qualified for automotive underhood and body control module applications. |
| Package | 54-pin SOIC with exposed pad (SOT1747-3); thermally enhanced for high-reliability automotive power dissipation. |
Pinout & Package
MCZ33905DD5EKR2 is housed in a 54-pin SOIC package with exposed thermal pad (SOT1747-3), optimized for automotive thermal performance and PCB footprint compatibility within the 33903/4/5 family.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VSUP1 / VSUP2 | Battery Supply Input | Dual input rails for internal regulation; VSUP1 powers reset and VDD regulator; VSUP2 powers CAN, LIN, and VAUX; internally connected in this variant. |
| CANH / CANL | CAN Bus Transceiver Outputs | Differential high-speed CAN interface with built-in short-circuit and overvoltage protection per ISO 11898-5. |
| LIN-T1 / LIN-T2 | LIN Master Termination Outputs | Configurable as HS drivers or wake-up inputs; provide 12 V-tolerant termination switching for dual LIN buses. |
| I/O-0 to I/O-3 | Programmable Wake-up / HS Switch Pins | Support cyclic sense, output drive (no overtemperature protection), or digital wake-up; configurable via SPI registers. |
| MUX-OUT | Analog Multiplexed Monitoring Output | Delivers selectable internal analog signals (VDD, VSUP, die temp, etc.) to MCU ADC; includes switchable pull-down for current sensing. |
| SAFE | Failsafe Alert Output | Open-drain active-low signal asserting on watchdog timeout, VDD undervoltage, RST fault, or critical internal error. |
| SPI Pins (CS/SCLK/MOSI/MISO) | Serial Peripheral Interface | Full-duplex SPI (mode 0,0) for configuration, status readback, and register access; CS transition wakes device from LP VDD-on mode. |
Key Features
| Feature | Design Value |
|---|---|
| Dual LIN 2.1 with termination control | Enables two independent LIN subnets without external transceivers or resistors; reduces BOM count and board space in multi-sensor ECUs. |
| Fail-safe state machine | Hardware-enforced safe state entry on fault (e.g., watchdog stall, supply collapse); prevents undefined behavior during ECU power anomalies. |
| Ultra-low LP mode current | <20 µA typical in LP VDD-off mode; extends battery life in always-on vehicle modules such as body controllers and gateway nodes. |
| Integrated CAN diagnostics | Real-time bus fault detection (short-to-battery, short-to-ground, open-wire) with SPI-reportable status flags and automatic recovery paths. |
| Configurable auxiliary regulator | VAUX output can be disabled or set to 5.0 V/3.3 V via SPI; eliminates need for discrete LDOs when powering LIN transceivers or sensors. |
Applications
| Body Control Module (BCM) | Engine Control Unit (ECU) |
|---|---|
|
Use Scenario: Centralized power and communication management for door locks, lighting, and window actuators. IC Role / Device Role / Timing Role: SBC providing regulated 5.0 V MCU supply, dual LIN for sensor clusters, and CAN gateway functionality. Use Value: Reduces component count by integrating CAN PHY, LIN transceivers, and dual regulators - enabling single-chip ECU architecture with <20 µA sleep current. |
Use Scenario: Power and communication interface for engine sensors, throttle actuator, and emissions control subsystems. IC Role / Device Role / Timing Role: High-integrity power manager with ISO 11898-5 CAN and LIN 2.1 for crankshaft/camshaft position feedback and injector control. Use Value: Enables fail-safe shutdown and diagnostic reporting during cranking transients; supports ASIL-B functional safety requirements via hardware watchdog and SAFE pin assertion. |
| Advanced Driver Assistance Systems (ADAS) Sensor Hub | Electric Power Steering (EPS) Module |
|
Use Scenario: Aggregation and preprocessing of radar, camera, and ultrasonic sensor data before CAN transmission. IC Role / Device Role / Timing Role: System basis chip supplying power to microcontroller and image signal processor, managing LIN-connected proximity sensors, and buffering CAN traffic. Use Value: MUX-OUT enables real-time monitoring of supply rail health and junction temperature - critical for thermal derating in sealed ADAS enclosures. |
Use Scenario: Real-time torque assist control with motor driver interface, torque sensor feedback, and vehicle speed synchronization. IC Role / Device Role / Timing Role: Fault-tolerant SBC delivering 5.0 V MCU power, CAN communication to vehicle network, and LIN interface to steering angle sensor. Use Value: Dual wake-up capability allows immediate response to torque demand changes via I/O-0 edge detection while maintaining <25 µA standby draw during parking mode. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar system basis chip applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCZ33905DS5EKR2 | Single-LIN variant in 32-pin SOIC (SOT1746-3); same 5.0 V VDD/VAUX specs but only one LIN interface and three wake-up pins. | Suitable for cost-sensitive or space-constrained ECUs requiring only one LIN subnet (e.g., HVAC control, seat module). | Select when dual-LIN capability is unnecessary and PCB area or BOM cost must be minimized. |
| MCZ33904D5EKR2 | No LIN interface; 32-pin SOIC (SOT1746-3); retains CAN, 5.0 V VDD/VAUX, four wake-up pins, and MUX-OUT. | Targeted at CAN-only gateways or simple body electronics where LIN is not required (e.g., rear lamp control, trailer module). | Choose when LIN is absent from system architecture and maximum pin compatibility with 33905D footprint is not needed. |
Compared with MCZ33905DD5EKR2, MCZ33905DS5EKR2 reduces LIN count and package size for simpler nodes, while MCZ33904D5EKR2 removes LIN entirely to lower cost and complexity - both retain identical CAN performance, regulator specs, and diagnostic depth but lack dual-LIN flexibility.
Availability
MCZ33905DD5EKR2 is available at Aetrix Electronics and suitable for automotive body control modules, engine control units, ADAS sensor hubs, and electric power steering systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MCZ33905DD5EKR2 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 power management and communication ICs.
The MCZ33905DD5EKR2 belongs to NXP's System Basis Chip Gen2 family, designed specifically for next-generation automotive electronic control units requiring integrated high-speed CAN, multiple LIN interfaces, and robust fail-safe power management.
FAQ
What is the maximum CAN baud rate supported by MCZ33905DD5EKR2?
The MCZ33905DD5EKR2 supports high-speed CAN up to 1.0 Mb/s, fully compliant with ISO 11898-5 for fault-tolerant operation. It maintains reliable communication across the full range of 40 kb/s to 1.0 Mb/s, including standard automotive rates like 500 kb/s and 125 kb/s, with integrated bus fault diagnostics and automatic recovery mechanisms.
Does MCZ33905DD5EKR2 support external PNP transistor augmentation for the VDD regulator?
No, MCZ33905DD5EKR2 does not support external PNP augmentation for its VDD regulator. Unlike earlier variants, the 'D' version disables this feature - the 5.0 V VDD output is self-contained at 300 mA maximum. External PNP support is only available in select 33903 variants and explicitly excluded in the 33905 family per datasheet note 2.
How many wake-up sources does MCZ33905DD5EKR2 support in low-power mode?
The MCZ33905DD5EKR2 supports up to four dedicated wake-up sources in low-power modes: CAN bus activity, LIN bus activity, digital edge transitions on any of the four I/O pins (I/O-0 to I/O-3), SPI message reception, automatic timer expiry, and VDD overcurrent detection - all configurable via SPI registers.
What is the function of the MUX-OUT pin on MCZ33905DD5EKR2?
The MUX-OUT pin on MCZ33905DD5EKR2 is a multiplexed analog output that delivers selectable internal measurements - including VDD voltage, VSUP battery level, die temperature, and internal reference voltages - to the MCU's ADC. Its integrated switchable pull-down resistor enables accurate VDD current sensing without external components.
Is MCZ33905DD5EKR2 pin-compatible with other devices in the 33903/4/5 family?
MCZ33905DD5EKR2 uses a 54-pin SOIC package (SOT1747-3) and is not pin-compatible with the 32-pin variants (e.g., MCZ33905DS5EKR2 or MCZ33904D5EKR2). However, it shares functional pin definitions and register mapping with the family, enabling software reuse and simplified migration between variants when board layout permits package change.
MCZ33905DD5EKR2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 54-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:
- 54-SOIC-EP
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
MCZ33905DD5EKR2 FAQ
1.How can I place an order for MCZ33905DD5EKR2 through Aetrix?
Please submit a Request for Quotation (RFQ) for MCZ33905DD5EKR2 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 MCZ33905DD5EKR2 reliable?
The price and inventory of MCZ33905DD5EKR2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MCZ33905DD5EKR2 is usually 5 days.
3.What payment methods are accepted for MCZ33905DD5EKR2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MCZ33905DD5EKR2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MCZ33905DD5EKR2?
MCZ33905DD5EKR2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MCZ33905DD5EKR2 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 MCZ33905DD5EKR2?
For technical support, including MCZ33905DD5EKR2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MCZ33905DD5EKR2 requirements.
6.How does Aetrix verify that MCZ33905DD5EKR2 is sourced from the original manufacturer or authorized distributors?
All MCZ33905DD5EKR2 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 MCZ33905DD5EKR2 meets industry standards.
7.What is the process for return or replacement of MCZ33905DD5EKR2?
All MCZ33905DD5EKR2 units undergo pre-shipment inspection (PSI). If there is an issue with MCZ33905DD5EKR2, 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 MCZ33905DD5EKR2 part is unused and in its original packaging.
Return procedure for MCZ33905DD5EKR2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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