My Inquiry
My Account
NXP Semiconductors MC33889DW
- Part No.:
- MC33889DW
- Manufacturer:
- NXP Semiconductors
- Category:
- Specialized
- Package:
- 28-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
MC33889DW.pdf
- Description:
- IC INTERFACE SPECIALIZED 28SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,024
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MC33889DW from NXP Semiconductors is a system basis chip (SBC) integrating a 5.0 V LDO regulator (200 mA), fault-tolerant low-speed CAN transceiver (125 kbps), dual-mode high-side switch (HS1), programmable watchdog, SPI interface, and four operational modes (Normal/Standby/Stop/Sleep). It serves as the central power, communication, and supervision unit in automotive body control modules and gateway ECUs.
For engineers reviewing the MC33889DW datasheet, MC33889DW pinout, MC33889DW application, or MC33889DW equivalent, this page delivers verified specifications, mode-dependent current consumption, CAN threshold behavior per version (B/D), HS1 on-resistance at temperature, and real-world wake-up timing under bus failure conditions - all critical for ISO 11898-3-compliant automotive network design.
Technical Context
The MC33889DW implements a SMARTMOS-based architecture with two independent voltage regulation paths: VDD1 (5.0 V ±2%, 200 mA) for MCU supply and V2 (tracking regulator controlled via V2CTRL) for peripherals using an external PNP transistor. Its CAN transceiver complies with ISO 11898-3 and supports TermVbat mode with single-ended wake-up detection on CANH/CANL.
Four configurable operational modes are managed by internal state machine logic: Normal (full functionality), Standby (CAN active, regulators on), Stop (VDD1 on, CAN disabled, oscillator optional), and Sleep (VDD1/V2 off, ultra-low ISUP = 55–95 μA). Wake-up sources include L0/L1 digital inputs, CAN bus activity, CS edge, and cyclic sense timer.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDD1 Output | 5.0 V ±2% at 200 mA; dropout ≤0.2 V @ 50 mA ensures stable MCU supply across 4.5–27 V input range |
| CAN Data Rate | Up to 125 kbps; fault-tolerant physical layer compliant with ISO 11898-3 for automotive wiring harness resilience |
| HS1 Switch | 150 mA output capability; RDS(ON) ≤2.5 Ω @ TJ = 25°C enables direct drive of pull-up resistors or small relays |
| Supply Current (Sleep) | 55–95 μA @ VSUP ≤12 V, oscillator off - meets automotive ECU quiescent current requirements for battery-off scenarios |
| Watchdog Periods | Configurable periods: 9.75/45/100/350 ms (Normal); 9.75/45/100/350 ms (Stop) with ±12% accuracy |
| Wake-up Latency | tWAKE = 8–30 μs min dominant time on CANL/CANH in TermVbat mode; supports fast network reactivation |
| Operating Temp | -40°C to +125°C ambient; thermal shutdown at 160–190°C protects against sustained overload conditions |
Pinout & Package
MC33889DW is housed in a 28-pin SOICW (wide-body) package with exposed thermal pad, optimized for automotive PCB layouts requiring high thermal reliability and ESD robustness (±4 kV HBM on CAN pins).
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 RX | CAN Receiver Output | CMOS-level signal reflecting bus state; used by MCU to read incoming CAN frames |
| 2 TX | CAN Transmitter Input | Drives internal CAN driver; logic-high initiates dominant bit transmission |
| 3 VDD1 | Main MCU Supply Rail | 5.0 V regulated output; powers microcontroller core and I/O; includes reset and overtemperature monitoring |
| 4 RST | Reset Output | Open-drain active-low signal asserting MCU reset during brown-out or watchdog timeout |
| 5 INT | Interrupt Output | Active-low pulse signals enabled events: watchdog timeout, CAN error, wake-up detection, or register flag change |
| 10 V2CTRL | V2 Regulator Control | Drives base of external PNP transistor to generate tracked V2 supply for peripherals |
| 12 HS1 | High-Side Switch Output | Internally switched 150 mA output referenced to VSUP; supports load switching without external FET |
| 13–14 L0/L1 | Digital Wake-up Inputs | Level-sensitive inputs with hysteresis (0.6–1.3 V); detect switch closures or logic transitions for system wake-up |
| 15 V2 | Peripheral Supply Input | Input node for externally generated V2 rail; monitored for undervoltage and used in TermVbat mode |
| 16–17 RTH/RTL | Termination Resistor Connect | Switched connections to CANH/CANL for on-chip bus termination control (500–16 kΩ range) |
| 18–19 CANH/CANL | CAN Bus Physical Interface | Differential outputs compliant with ISO 11898-3; support short-to-battery detection and fail-safe recovery |
| 24–27 SCLK/MISO/MOSI/CS | SPI Interface | Full-duplex 4-wire SPI up to 4 MHz; enables configuration, status readback, and mode control |
| 28 WDOG | Watchdog Output | Open-drain signal asserted low if watchdog is not serviced within programmed period |
Key Features
| Feature | Design Value |
|---|---|
| Integrated VDD1 LDO | 5.0 V ±2% regulator with 200 mA output, current limiting, overtemperature prewarning (130°C), and thermal shutdown (160°C) |
| V2 Tracking Regulator | V2CTRL output drives external PNP to generate flexible peripheral voltage (e.g., 3.3 V, 2.5 V) with adjustable current capability |
| Fault-Tolerant CAN | ISO 11898-3 compliant transceiver with recessive/dominant thresholds (VDIFF1 = 3.5 V typ for MC33889D), bus failure detection, and TermVbat mode |
| Multi-Mode Power Management | Four hardware-configurable states: Normal (full function), Standby (CAN active), Stop (VDD1 on), Sleep (ultra-low ISUP) |
| Programmable Watchdog | Four selectable timeout periods (9.75–350 ms) with separate settings for Normal and Stop modes; ±12% accuracy |
| Robust Wake-up Architecture | Simultaneous wake-up sources: CAN bus activity (CANH/CANL), L0/L1 digital inputs, CS edge, and cyclic sense timer |
Applications
| Body Control Module (BCM) | Door Module |
|---|---|
|
Use Scenario: Centralized control of lighting, windows, locks, and mirrors in passenger vehicles. IC Role / Device Role / Timing Role: MC33889DW provides regulated 5.0 V supply to MCU, manages CAN communication with other nodes, and switches high-current loads (e.g., window motors) via HS1. Use Value: Eliminates need for discrete LDO, CAN transceiver, and high-side driver; reduces BOM count and PCB area while meeting ISO 16750-2 load dump requirements. |
Use Scenario: Local control unit inside vehicle door managing mirror adjustment, window lift, and interior lighting. IC Role / Device Role / Timing Role: MC33889DW operates in Stop mode when vehicle is off, wakes on CAN message or L0/L1 switch event, and supplies regulated VDD1/V2 to MCU and sensors. Use Value: Achieves <95 μA sleep current enabling long-term battery survival; integrated CAN transceiver ensures interoperability with BCM and gateway. |
| Gateway ECU | Seat Control Module |
|
Use Scenario: Communication bridge between high-speed CAN FD backbone and low-speed body networks. IC Role / Device Role / Timing Role: MC33889DW handles low-speed CAN (125 kbps) interfaces for legacy subsystems while providing isolated power domains and wake-up coordination. Use Value: Dual-regulator architecture isolates MCU and peripheral rails; TermVbat mode allows wake-up even when main supply is disconnected. |
Use Scenario: Actuation and position feedback for power seats including motor drivers and memory functions. IC Role / Device Role / Timing Role: MC33889DW supplies 5.0 V to seat MCU and sensors, monitors battery voltage for safe shutdown, and triggers reset on undervoltage via RST pin. Use Value: Built-in supply monitoring (BFEW = 6.1 V threshold) and reset generation prevent erratic motor behavior during cranking or battery sag. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar system basis chip applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC33883DG | Single 5.0 V regulator (no V2 tracking), no HS1 switch, lower integration; 20-pin SOIC | Lacks peripheral supply flexibility and load switching; suitable only for simpler nodes without external PNP or relay drive needs | Select MC33883DG only when V2 and HS1 functions are unused and board space is constrained. |
| TC9620FNG | 5.0 V/3.3 V dual LDO, no CAN transceiver, no watchdog; 24-pin SSOP | Requires external CAN PHY and supervision logic; lacks fault-tolerant bus interface and wake-up intelligence | Choose TC9620FNG only for non-CAN applications where dual-rail supply is primary requirement and CAN is handled separately. |
Compared with MC33889DW, MC33883DG omits V2CTRL and HS1 - reducing cost but eliminating peripheral voltage flexibility and integrated load switching; TC9620FNG provides dual LDOs but requires external CAN transceiver and watchdog circuitry, increasing design complexity and component count.
Availability
MC33889DW is available at Aetrix Electronics and suitable for automotive body control modules, door modules, gateway ECUs, and seat control systems requiring stable component supply, extended temperature operation (-40°C to +125°C), and ISO 11898-3 compliance.
Supply support for MC33889DW 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 analog and mixed-signal ICs.
The MC33889DW belongs to NXP's System Basis Chip product line, designed specifically for automotive electronic control units requiring integrated power management, fault-tolerant communication, and intelligent wake-up capabilities in harsh environments.
FAQ
What is the maximum continuous supply voltage for MC33889DW?
The MC33889DW supports a continuous supply voltage (VSUP) range of 4.5 V to 27 V, with transient tolerance up to 40 V during load dump events per ISO 7637-2 Pulse 5a. This ensures reliable operation across automotive battery variations, cranking, and alternator surge conditions without external protection circuitry.
Does MC33889DW support both CAN 2.0A and CAN 2.0B protocols?
Yes, MC33889DW's integrated CAN transceiver is fully compatible with both CAN 2.0A (standard frame) and CAN 2.0B (extended frame) protocols. Its ISO 11898-3 compliance guarantees interoperability with all standard low-speed fault-tolerant CAN networks operating up to 125 kbps.
How does the V2 tracking regulator in MC33889DW work?
The MC33889DW's V2CTRL pin drives the base of an external PNP transistor to create a tracked V2 supply. The output voltage follows VDD1 (5.0 V) but can be adjusted via emitter resistor network. This enables flexible peripheral rail generation (e.g., 3.3 V) while maintaining tight regulation and thermal coupling to the SBC die.
What is the minimum dominant time required to wake MC33889DW from Sleep mode via CAN bus?
In TermVbat mode, MC33889DW requires a minimum dominant time of 8 μs on either CANH or CANL to initiate wake-up from Sleep mode - verified for the MC33889D variant. This fast response enables rapid network reactivation while minimizing false triggers from noise.
Can MC33889DW operate with VSUP below 5.5 V?
Yes, MC33889DW supports an extended input range of 4.5 V to 5.5 V (VSUP-EX1), though with reduced functionality: VDD1 remains active but reset threshold shifts, and logic high levels decrease. Full specification applies only above 5.5 V, making it suitable for cold-cranking scenarios with temporary undervoltage.
MC33889DW Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 28-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Applications:
- -
- Interface:
- CAN
- Voltage - Supply:
- 5.5V ~ 18V
- Supplier Device Package:
- 28-SOIC
- Grade:
- Automotive
- Qualification:
- -
- Mounting Type:
- Surface Mount
MC33889DW FAQ
1.How can I place an order for MC33889DW through Aetrix?
Please submit a Request for Quotation (RFQ) for MC33889DW 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 MC33889DW reliable?
The price and inventory of MC33889DW are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC33889DW is usually 5 days.
3.What payment methods are accepted for MC33889DW?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC33889DW transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC33889DW?
MC33889DW orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC33889DW 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 MC33889DW?
For technical support, including MC33889DW datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC33889DW requirements.
6.How does Aetrix verify that MC33889DW is sourced from the original manufacturer or authorized distributors?
All MC33889DW 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 MC33889DW meets industry standards.
7.What is the process for return or replacement of MC33889DW?
All MC33889DW units undergo pre-shipment inspection (PSI). If there is an issue with MC33889DW, 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 MC33889DW part is unused and in its original packaging.
Return procedure for MC33889DW:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MC33889DW Tags
-
NVT4857UKAZ
NXP Semiconductors
-
TCA8418RTWR
Texas Instruments
-
PCA9546APWR
Texas Instruments
-
MD0100N8-G
Microchip Technology
-
PCA9548APW,118
NXP Semiconductors
-
PCA9540BDP,118
NXP Semiconductors
-
PCA9548APWR
Texas Instruments
-
PCA9546APW,118
NXP Semiconductors
-
PTN3360DBS,518
NXP Semiconductors
-
PCA9546ABS,118
NXP Semiconductors
-
PCA9518PWR
Texas Instruments
-
PCA9545APW,118
NXP Semiconductors
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
