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NXP Semiconductors MCZ33905DD3EK
- Part No.:
- MCZ33905DD3EK
- Manufacturer:
- NXP Semiconductors
- Category:
- Specialized
- Package:
- 54-SSOP (0.295", 7.50mm Width) Exposed Pad
- Datasheet:
-
MCZ33905DD3EK.pdf
- Description:
- IC INTERFACE SPECIALIZED 54SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,621
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Product details
Overview
MCZ33905DD3EK from NXP Semiconductors is a second-generation System Basis Chip (SBC) integrating high-speed CAN (ISO 11898-2/5), dual LIN 2.1 interfaces, 3.3 V MCU supply regulator, auxiliary 3.3 V regulator, and four configurable wake-up/I/O pins - designed for automotive ECU power management and diagnostics in harsh environments.
For engineers reviewing the MCZ33905DD3EK datasheet, MCZ33905DD3EK pinout, MCZ33905DD3EK application, or MCZ33905DD3EK equivalent, this device delivers fail-safe state machine control, SPI-configurable regulators, bus-level fault diagnostics, and low-power mode operation with <10 µA quiescent current - critical for battery-sensitive vehicle modules.
Technical Context
The MCZ33905DD3EK implements a SMARTMOS-based power management architecture with integrated CAN physical layer compliant to ISO 11898-5 (40 kb/s–1 Mb/s), dual LIN transceivers supporting J2602-2, and a programmable fail-safe state machine that monitors VDD, RST, watchdog, and bus integrity. Its SPI interface enables real-time register access for diagnostics and configuration.
It supports three LP modes (VDD ON/OFF, STOP), cyclic sense during sleep, and multiple wake-up sources including CAN/LIN activity, I/O transitions, SPI messages, and VDD overcurrent detection - all coordinated by an internal oscillator and state controller without external timing components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CAN Interface | ISO 11898-2 and -5 compliant; supports 40 kb/s–1 Mb/s baud rates with local/bus fault diagnostics and fail-safe operation |
| LIN Interfaces | Dual LIN 2.1 channels with master termination capability on LIN-T1/LIN-T2 pins; J2602-2 compatible |
| VDD Regulator Output | 3.3 V ±2%, 250 mA typical; externally extendable via PNP transistor for higher current dissipation |
| Auxiliary Regulator | Configurable 3.3 V or 5.0 V output with overcurrent detection and undervoltage protection |
| Quiescent Current (LP Mode) | <10 µA in VDD-OFF LP mode; enables long-term battery-backed operation in parked vehicle states |
| Wake-up Inputs | Four configurable pins (I/O-0 to I/O-3) usable as wake sources or HS outputs; support cyclic sense in LP mode |
| Operating Temperature | −40 °C to +125 °C ambient; qualified for automotive under-hood applications per AEC-Q100 |
Pinout & Package
MCZ33905DD3EK uses a 54-pin SOIC package with exposed pad (SOT1747-3), Pb-free (EK suffix), footprint-compatible with other 33905 variants. The package supports thermal dissipation required for sustained 250 mA VDD regulation and embedded CAN driver operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VSUP1 / VSUP2 | Battery Supply Inputs | Dual-supply inputs: VSUP1 powers internal logic and reset circuitry; VSUP2 supplies CAN regulator, VAUX, and I/O/LIN drivers |
| CANH / CANL / SPLIT | CAN Physical Interface | Differential CAN bus outputs with integrated termination support; SPLIT connects to mid-point of external split termination |
| LIN-T1 / LIN-T2 | LIN Master Termination | Output pins for internal 1 kΩ LIN bus termination resistors; configurable as HS outputs or wake-up inputs |
| I/O-0 to I/O-3 | Configurable I/O | Four bidirectional pins supporting wake-up input, HS switching, cyclic sense, and MUX monitoring in LP modes |
| MUX-OUT | Analog Multiplex Output | Single-pin analog monitor for VDD, VSENSE, temperature, or internal voltage rails - selectable via SPI register |
| SAFE | Fail-Safe Output | Open-drain active-low signal asserting on VDD undervoltage, watchdog timeout, RST fault, or CAN/LIN bus failure |
| CS / SCLK / MOSI / MISO | SPI Interface | Full-duplex SPI port (mode 0, CPOL=0, CPHA=0) for register read/write, diagnostics, and configuration |
Key Features
| Feature | Design Value |
|---|---|
| Dual LIN 2.1 Transceivers | Integrated LIN PHY with master termination, automatic sync-break detection, and bus short-to-battery/ground diagnostics |
| Fail-Safe State Machine | Hardware-enforced safety logic that asserts SAFE pin on VDD drop, watchdog stall, RST pin fault, or CAN bus error accumulation |
| Low-Power Mode Flexibility | Three distinct LP modes (VDD ON/OFF, STOP) with configurable wake sources, cyclic INT, and SPI-accessible status flags |
| VDD Regulator Diagnostics | Real-time monitoring of VDD voltage, current, and temperature with SPI-reportable fault flags and undervoltage lockout |
| Embedded CAN with Bus Protection | ISO 11898-5-compliant CAN transceiver with ±40 V bus fault tolerance, dominant time-out, and TXD/RXD short detection |
Applications
| Body Control Module (BCM) | Engine Control Unit (ECU) |
|---|---|
|
Use Scenario: Centralized power management and communication hub for door locks, lighting, wipers, and HVAC actuators in modern vehicles. IC Role / Device Role / Timing Role: SBC provides regulated 3.3 V MCU supply, dual LIN for sensor/actuator networks, and high-speed CAN for gateway connectivity. Use Value: Reduces BOM count by integrating CAN/LIN transceivers, regulators, and wake-up logic - enabling compact, thermally efficient module design. |
Use Scenario: Power and communication interface between engine MCU and crankshaft/camshaft sensors, fuel injectors, and throttle actuators. IC Role / Device Role / Timing Role: Delivers fail-safe VDD regulation, CAN diagnostics, and LIN-controlled peripheral interfaces with deterministic wake-up response. Use Value: Enables compliance with ISO 26262 ASIL-B requirements via hardware-monitored SAFE output and cyclic self-test capability. |
| Advanced Driver Assistance Systems (ADAS) Sensor Hub | Electric Power Steering (EPS) Module |
|
Use Scenario: Aggregation node for radar, camera, and ultrasonic sensors communicating over LIN and CAN in ADAS domain controllers. IC Role / Device Role / Timing Role: Manages power sequencing, LIN bus arbitration, and CAN message filtering while maintaining ultra-low standby current. Use Value: Supports ASAM MCD-2 MC-compliant diagnostics and meets OEM requirements for <15 µA sleep current across sensor clusters. |
Use Scenario: Safety-critical steering assist module requiring redundant power paths, bus fault containment, and fast wake-up from deep sleep. IC Role / Device Role / Timing Role: Provides monitored 3.3 V supply, CAN fault isolation, and dual-LIN control of motor drivers and torque sensors. Use Value: Eliminates need for discrete CAN/LIN transceivers and external supervisor ICs - reducing PCB area and qualification effort. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar System Basis Chip applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCZ33905DS3EK | Single-LIN variant in 32-pin SOIC; lacks LIN-T2 and RXD-L2/TXD-L2 pins; same VDD/VAUX specs and LP behavior | Used where only one LIN bus is required (e.g., simpler body modules); smaller footprint but reduced bus scalability | Select when dual-LIN is unnecessary and board space is constrained - retains identical SPI register map and diagnostic features |
| MCZ33904D3EK | No LIN interface; 32-pin SOIC; includes VSENSE, VAUX, MUX-OUT, and same CAN/SPI/fail-safe architecture | Targeted at CAN-only gateways or legacy systems without LIN; lower pin count and cost, no LIN termination or protocol handling | Choose for cost-sensitive CAN-centric designs where LIN is absent - shares same LP modes, SAFE logic, and regulator architecture |
Compared with MCZ33905DD3EK, MCZ33905DS3EK offers identical core functionality in a smaller package but sacrifices one LIN channel, while MCZ33904D3EK removes LIN entirely to reduce complexity and cost - both retain full CAN diagnostics, fail-safe operation, and low-power management capabilities.
Availability
MCZ33905DD3EK is available at Aetrix Electronics and suitable for automotive ECU development, ADAS sensor hubs, electric power steering modules, and industrial vehicle control systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MCZ33905DD3EK 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 and functional safety certification.
The MCZ33905DD3EK belongs to NXP's System Basis Chip Gen2 family, engineered specifically for automotive electronic control units needing integrated power management, robust CAN/LIN communication, and hardware-enforced fail-safe operation.
FAQ
What is the maximum CAN baud rate supported by MCZ33905DD3EK?
The MCZ33905DD3EK supports high-speed CAN up to 1.0 Mb/s per ISO 11898-5, with guaranteed operation from 40 kb/s to 1 Mb/s across its full −40 °C to +125 °C operating range. This includes built-in dominant time-out and bus fault recovery mechanisms essential for automotive network reliability.
Does MCZ33905DD3EK support external PNP extension for the VDD regulator?
Yes, MCZ33905DD3EK supports external PNP transistor extension of the 3.3 V VDD regulator using VB (pin 51) and VE (pin 30) connections. This allows current sharing and thermal distribution beyond the internal 250 mA limit - a feature confirmed in the MC33905 data sheet Rev. 15.0 section "Voltage regulator for MCU".
How many wake-up sources does MCZ33905DD3EK provide in low-power mode?
MCZ33905DD3EK provides four dedicated wake-up capable pins (I/O-0 through I/O-3), plus additional sources including CAN bus activity, LIN bus transitions, SPI message reception, automatic timer expiry, and VDD overcurrent detection - all configurable via SPI registers in any LP mode.
Is MCZ33905DD3EK pin-compatible with other devices in the 33905 family?
Yes, MCZ33905DD3EK is pin-compatible with other 54-pin 33905 variants (e.g., MCZ33905DD5EK) and shares the same SOT1747-3 SOIC package footprint. However, it is not pin-compatible with 32-pin variants like MCZ33905DS3EK due to differing pin counts and LIN interface allocation.
What diagnostic functions are accessible via the MUX-OUT pin on MCZ33905DD3EK?
The MUX-OUT pin on MCZ33905DD3EK provides multiplexed analog monitoring of VDD voltage, VSENSE (battery sense), internal die temperature, and VAUX regulator output - selected dynamically via SPI register writes. An integrated switchable pull-down resistor enables accurate VDD current sensing during cyclic diagnostics.
MCZ33905DD3EK Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 54-SSOP (0.295", 7.50mm Width) Exposed Pad
- Packaging:
- Tube
- 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
MCZ33905DD3EK FAQ
1.How can I place an order for MCZ33905DD3EK through Aetrix?
Please submit a Request for Quotation (RFQ) for MCZ33905DD3EK 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 MCZ33905DD3EK reliable?
The price and inventory of MCZ33905DD3EK are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MCZ33905DD3EK is usually 5 days.
3.What payment methods are accepted for MCZ33905DD3EK?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MCZ33905DD3EK transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MCZ33905DD3EK?
MCZ33905DD3EK orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MCZ33905DD3EK 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 MCZ33905DD3EK?
For technical support, including MCZ33905DD3EK datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MCZ33905DD3EK requirements.
6.How does Aetrix verify that MCZ33905DD3EK is sourced from the original manufacturer or authorized distributors?
All MCZ33905DD3EK 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 MCZ33905DD3EK meets industry standards.
7.What is the process for return or replacement of MCZ33905DD3EK?
All MCZ33905DD3EK units undergo pre-shipment inspection (PSI). If there is an issue with MCZ33905DD3EK, 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 MCZ33905DD3EK part is unused and in its original packaging.
Return procedure for MCZ33905DD3EK:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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