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NXP Semiconductors MCZ33905DD3EKR2
- Part No.:
- MCZ33905DD3EKR2
- Manufacturer:
- NXP Semiconductors
- Category:
- Specialized
- Package:
- 54-SSOP (0.295", 7.50mm Width) Exposed Pad
- Datasheet:
-
MCZ33905DD3EKR2.pdf
- Description:
- IC INTERFACE SPECIALIZED 54SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,713
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Product details
Overview
MCZ33905DD3EKR2 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 regulator, 5 V CAN driver supply, and four configurable wake-up/I/O pins. It delivers fail-safe power management for automotive ECUs in engine control, body electronics, and ADAS modules requiring robust bus diagnostics and ultra-low-power operation.
For engineers reviewing the MCZ33905DD3EKR2 datasheet, MCZ33905DD3EKR2 pinout, MCZ33905DD3EKR2 application, or MCZ33905DD3EKR2 equivalent, this page provides verified technical context, validated pin functions, real-world use cases, and confirmed alternative parts with documented functional and application differences - all aligned to Rev. 15.0 (June 2023) of the official NXP datasheet.
Technical Context
The MCZ33905DD3EKR2 implements a SMARTMOS-based fail-safe state machine with dedicated watchdog supervision, cyclic sense capability during LP modes, and SPI-configurable diagnostics for VDD, VSUP, temperature, and CAN/LIN bus faults. Its dual LIN interface supports J2602-2-compliant master termination via LIN-T1/LIN-T2 pins, while the embedded ISO 11898-5 CAN transceiver operates from 40 kb/s to 1.0 Mb/s with local bus failure detection and split termination support.
Power architecture includes three independent regulators: a 3.3 V VDD output (non-PNP extendable), a dedicated 5 V 5V-CAN supply with overcurrent protection, and a configurable 5 V/3.3 V VAUX regulator with undervoltage lockout. All LP modes achieve sub-100 µA quiescent current with wake-up sources including CAN/LIN activity, I/O transitions, SPI messages, and VDD overcurrent events.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDD Output | 3.3 V ±2%, 250 mA max - powers MCU core logic; no external PNP support per datasheet note. |
| CAN Interface | ISO 11898-2 & -5 compliant, 40 kb/s–1.0 Mb/s - enables high-speed vehicle networking with bus fault diagnostics. |
| LIN Interfaces | Two independent LIN 2.1 channels - supports dual-sensor clusters or multi-actuator nodes without external transceivers. |
| Wake-up Inputs | 4 programmable pins (I/O-0 to I/O-3) - configurable as wake sources or HS outputs for load switching in LP mode. |
| LP Mode Current | <100 µA (VDD ON, CAN/LIN inactive) - meets automotive cold-cranking and battery-drain requirements. |
| Operating Temp | −40 °C to +125 °C - qualified for under-hood ECU deployment per AEC-Q100 Grade 1. |
| Package | SOIC 54-pin exposed pad (SOT1747-3) - thermally enhanced for high-power dissipation in compact modules. |
Pinout & Package
MCZ33905DD3EKR2 uses a 54-pin SOIC package with exposed thermal pad (SOT1747-3), optimized for automotive thermal cycling and board-level reliability. Pin layout matches the 33905D family footprint, enabling scalable design across LIN-count variants.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VSUP1 / VSUP2 | Battery Input | Dual-supply inputs (internally connected) - accepts 5–28 V DC with 40 V transient tolerance for load-dump immunity. |
| CANH / CANL | CAN Physical Layer | Differential outputs with integrated bus protection - supports direct connection to automotive CAN bus without external components. |
| LIN-T1 / LIN-T2 | LIN Master Termination | Configurable outputs driving 1 kΩ pull-up resistors - enables single-wire LIN bus termination without external discretes. |
| I/O-0 to I/O-3 | Wake-up / HS Switch | Programmable pins supporting cyclic sense, wake-on-edge, or high-side load control - no overtemperature protection when used as HS drivers. |
| MUX-OUT | Analog Monitoring | Multiplexed analog output for SPI-selected parameters (VDD, VSUP, temp) - connects directly to MCU ADC for system health monitoring. |
| SAFE | Fault Indicator | Open-drain active-low output - asserts on VDD undervoltage, watchdog timeout, or RST pin fault to trigger system-level fail-safe response. |
Key Features
| Feature | Design Value |
|---|---|
| Dual LIN 2.1 with integrated termination | Eliminates 4 external resistors and 2 LIN transceivers per bus - reduces BOM cost and PCB area in multi-node systems. |
| Fail-safe state machine | Hardware-enforced transition to safe state on critical faults (e.g., missing watchdog pulse, VDD collapse) - ensures deterministic behavior without MCU intervention. |
| Cyclic sense in LP mode | Automated periodic sampling of I/O-0/I/O-1 voltage levels during sleep - enables battery monitoring and sensor polling without waking MCU. |
| SPI-configurable diagnostics | Real-time register access to CAN bus status, LIN error counters, regulator voltages, and temperature - simplifies ECU self-test and calibration routines. |
| 5V-CAN regulator with protection | Embedded 5 V supply for CAN transceiver with overcurrent shutdown and thermal foldback - prevents latch-up during bus short circuits. |
Applications
| Engine Control Unit (ECU) | Body Control Module (BCM) |
|---|---|
Use Scenario: Centralized power and communication management for gasoline/diesel engine control, integrating crankshaft/camshaft sensors, fuel injectors, and throttle actuators. IC Role / Device Role / Timing Role: Primary SBC providing regulated 3.3 V MCU supply, CAN connectivity to powertrain network, dual LIN links to valve timing and knock sensors, and fail-safe reset signaling. Use Value: Reduces component count by consolidating power, CAN, and dual-LIN functions - improves ECU reliability and meets ASIL-B diagnostic coverage targets. | Use Scenario: Power distribution and subsystem coordination for lighting, door locks, window lifts, and HVAC in passenger vehicles. IC Role / Device Role / Timing Role: System basis controller managing 3.3 V MCU domain, LIN communication with seat/mirror modules, and wake-up event routing from door switches or key fobs. Use Value: Enables ultra-low-power sleep states (<100 µA) with multiple wake sources - extends battery life during vehicle standby while maintaining responsive feature activation. |
| Advanced Driver Assistance Systems (ADAS) | Electric Power Steering (EPS) |
Use Scenario: Sensor fusion hub connecting radar, camera, and ultrasonic modules in lane-keeping and automatic emergency braking systems. IC Role / Device Role / Timing Role: High-integrity power manager delivering stable 3.3 V to vision processor, CAN FD backbone connectivity, and dual LIN interfaces to proximity sensors and display controls. Use Value: Integrated bus diagnostics detect intermittent CAN/LIN faults before safety-critical failures - supports ISO 26262 ASIL-B hardware metrics. | Use Scenario: Real-time torque assist control using motor position feedback, torque sensor input, and CAN commands from steering column ECU. IC Role / Device Role / Timing Role: Safety-relevant SBC supplying 3.3 V to MCU, monitoring VSUP for battery health, asserting SAFE signal on voltage collapse, and enabling cyclic sense of motor current shunt voltage. Use Value: Hardware fail-safe state machine guarantees deterministic shutdown on power anomaly - satisfies ISO 26262 ASIL-C functional safety requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar system basis chip applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCZ33905DD5EKR2 | Same pinout and features, but 5.0 V VDD output instead of 3.3 V - no external PNP support per datasheet. | Required where MCU demands 5.0 V supply; incompatible with 3.3 V-only microcontrollers. | Select only if target MCU requires 5 V VDD; verify regulator current capability (250 mA) matches load. |
| MCZ33903DD3EKR2 | 32-pin SOIC (SOT1762-2), dual LIN, 3.3 V VDD - lacks VAUX, VSENSE, and MUX-OUT features present in MCZ33905DD3EKR2. | Suitable for space-constrained modules where auxiliary regulation and analog monitoring are not needed. | Choose for cost-sensitive, footprint-limited designs omitting VAUX/VSENSE functionality - not drop-in compatible due to package and pin count difference. |
Compared with MCZ33905DD5EKR2, MCZ33905DD3EKR2 enables direct interfacing with 3.3 V MCUs without level-shifting, while MCZ33903DD3EKR2 trades diagnostic richness and auxiliary regulation for smaller size and lower cost - making MCZ33905DD3EKR2 optimal for full-featured, thermally demanding automotive ECUs.
Availability
MCZ33905DD3EKR2 is available at Aetrix Electronics and suitable for automotive engine control units, body control modules, and ADAS sensor hubs requiring stable component supply, long-term lifecycle assurance, and AEC-Q100-compliant sourcing.
Supply support for MCZ33905DD3EKR2 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 MCZ33905DD3EKR2 belongs to NXP's System Basis Chip Gen2 family, designed specifically for automotive electronic control units requiring integrated power management, high-speed CAN, and flexible LIN connectivity with fail-safe operation.
FAQ
What is the maximum CAN baud rate supported by MCZ33905DD3EKR2?
MCZ33905DD3EKR2 supports CAN baud rates from 40 kb/s up to 1.0 Mb/s, fully compliant with ISO 11898-5 for high-speed fault-tolerant operation. This range covers standard automotive CAN FD implementations and legacy CAN networks, with built-in bus fault diagnostics and split termination support for robust signal integrity.
Does MCZ33905DD3EKR2 support external PNP transistor extension for the VDD regulator?
No, MCZ33905DD3EKR2 does not support external PNP transistor extension for the VDD regulator. Per datasheet Note 2 in Table 3, the 33903 series explicitly prohibits PNP usage, and the 33905 family - including MCZ33905DD3EKR2 - inherits this limitation. The 3.3 V VDD output is rated for 250 mA continuous without external boosting.
How many wake-up sources does MCZ33905DD3EKR2 provide in low-power mode?
MCZ33905DD3EKR2 provides four dedicated wake-up sources via I/O-0 through I/O-3 pins, configurable as edge-triggered inputs. Additional wake-up triggers include CAN bus activity, LIN bus activity, SPI message reception, automatic timer expiration, and VDD overcurrent detection - enabling flexible, multi-condition sleep/wake strategies in automotive ECUs.
What LIN protocol versions are supported by MCZ33905DD3EKR2?
MCZ33905DD3EKR2 supports LIN 2.1 protocol compliance and is also compatible with SAE J2602-2 specifications. Its dual LIN interfaces operate independently, each supporting master node termination via LIN-T1 and LIN-T2 pins, with configurable baud rates and error detection per LIN specification requirements.
Is MCZ33905DD3EKR2 pin-compatible with other devices in the 33903/4/5 family?
MCZ33905DD3EKR2 is not pin-compatible with 32-pin variants (e.g., MCZ33903DD3EKR2 or MCZ33905DS3EKR2) due to its 54-pin SOIC package (SOT1747-3). However, it shares identical pin functions and signal definitions with other 54-pin 33905D variants (e.g., MCZ33905DD5EKR2), enabling voltage-output variant swaps without layout changes.
MCZ33905DD3EKR2 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
MCZ33905DD3EKR2 FAQ
1.How can I place an order for MCZ33905DD3EKR2 through Aetrix?
Please submit a Request for Quotation (RFQ) for MCZ33905DD3EKR2 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 MCZ33905DD3EKR2 reliable?
The price and inventory of MCZ33905DD3EKR2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MCZ33905DD3EKR2 is usually 5 days.
3.What payment methods are accepted for MCZ33905DD3EKR2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MCZ33905DD3EKR2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MCZ33905DD3EKR2?
MCZ33905DD3EKR2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MCZ33905DD3EKR2 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 MCZ33905DD3EKR2?
For technical support, including MCZ33905DD3EKR2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MCZ33905DD3EKR2 requirements.
6.How does Aetrix verify that MCZ33905DD3EKR2 is sourced from the original manufacturer or authorized distributors?
All MCZ33905DD3EKR2 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 MCZ33905DD3EKR2 meets industry standards.
7.What is the process for return or replacement of MCZ33905DD3EKR2?
All MCZ33905DD3EKR2 units undergo pre-shipment inspection (PSI). If there is an issue with MCZ33905DD3EKR2, 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 MCZ33905DD3EKR2 part is unused and in its original packaging.
Return procedure for MCZ33905DD3EKR2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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