MC33388D - Fault-Tolerant CAN Interface | NXP | Automotive
MPN: MC33388D ✗ סוף ייצורMC33388D סקירה
A CAN physical-layer interface, also called a CAN transceiver, is the circuit that connects a CAN controller or host logic to a differential CAN bus. It belongs to the network-interface hierarchy: CAN transceiver to CAN physical layer to network interface IC to communication semiconductor. Unlike a controller-only device, the MC33388D handles bus-level signaling, driver protection, bus-state monitoring, and fault-oriented control functions required by demanding automotive environments.
Verified product information identifies the MC33388D as an automotive fault-tolerant CAN interface and lists its 4.75 V to 5.25 V operating supply range, 5 mA supply current, and 14-SOIC package. Differential operation allows communication despite ground shifts up to 1.5 V and is intended to reduce radio-frequency-interference disturbances. The package also provides dedicated receiver-mode control, mux and failure-detection signals, standby and enable controls, wake-up inhibit, error indication, and slope-control functions.
The device's architecture separates CAN bus-side signaling from logic-side control while adding automotive fault tolerance around the physical interface. Its 5 mA supply-current specification supports power-conscious body modules, while the 5 V supply range fits conventional automotive electronics. Ground-shift tolerance is particularly valuable when the transceiver and CAN controller reference different ground potentials or when common-mode voltage varies in body-network installations.
Typical uses include automotive body-control modules, door and lighting controllers, seat and occupant-system electronics, climate-control nodes, sensing modules, and other distributed vehicle systems connected by a CAN bus. The fault-tolerant interface can also support industrial CAN equipment when its electrical ratings, automotive qualification status, availability, and lifecycle requirements have been verified for the target environment.
Before layout, confirm the exact pin mapping and recommended external network in the manufacturer datasheet. Place the CAN bus-side network and protection components close to the transceiver pins, maintain a continuous ground reference where the architecture permits, and verify termination, common-mode voltage, bus-fault behavior, and timing in the final vehicle network. The available web results do not provide verified pricing, complete electrical limits, or a confirmed package drawing, so those details remain marked as data needed rather than inferred.
חלופות תחליף ישיר עבור MC33388D — אותו מארז, תואם פין-לפין. חלקים במארז שונה הדורשים עיבוד מחדש של ה-PCB אינם נכללים.
אין חלופות תואמות Drop-in עבור מוצר זה.
בקשת חלופותMC33388D מפרטים
| Product Type | Automotive fault-tolerant CAN physical-layer interface |
| Controller Type | CAN Interface |
| CAN Interface | Fault-tolerant differential CAN interface |
| Supply Voltage Range | 4.75 V to 5.25 V |
| זרם אספקה | 5 mA |
| Differential Ground-Shift Tolerance | Up to 1.5 V |
| מארז | 14-SOIC |
| מספר פינים | 14 pins |
| סוג הרכבה | Surface Mount |
| Operating Mode | Differential mode |
| Application Segment | Automotive body electronic multiplexing |
| RFI Disturbance Reduction | Supported by differential operation |
| Receiver Mode Control | Yes |
| Failure Detection | Yes |
| Wake-Up Logic | Yes |
| Wake-Up Inhibit Control | Yes |
| Slope Control | Yes |
| Driver Protection | Yes |
| Dominant-State Detection | Yes |
מדריך תצורת פינים של MC33388D 14-soic
תצורת פינים עבור MC33388D (מארזת 14-soic). מספרי פינים, פונקציות ותרשימי חיבורים מוגדרים ב-Datasheet של היצרן. יש לעיין בו לקבלת ה-footprint המדויק והנחיות הלחמה.
אין נתוני פריסת פינים מפורטים עבור MC33388D.
עיינו ב- גיליון נתונים עבור תצורת פינים מלאה.
יישומים טיפוסיים
MC33388D מתאים עבור 6 יישוםs: Automotive Body Control Module, Vehicle Lighting Controller, Door and Access-Control Node, Climate-Control Electronics, Seat and Occupant-System Electronics, Industrial CAN Sensor Gateway.
Automotive Body Control Module
The MC33388D fits distributed vehicle body-control modules that connect electronic loads to a CAN network. Its verified differential operation tolerates ground shifts up to 1.5 V, while the 4.75 V to 5.25 V supply range suits conventional 5 V electronics. Failure detection and driver protection add value where wiring faults and electrical transients are concerns. The device should be used only where its original automotive qualification, temperature limits, transient ratings, and lifecycle status are acceptable; an obsolete design should be qualified against current alternatives before volume release.
מומלץ
Vehicle Lighting Controller
A lighting controller can use the MC33388D to place a controlled CAN node on a distributed vehicle bus. Differential signaling reduces susceptibility to radiated disturbances, and the verified tolerance of ground shifts up to 1.5 V helps maintain communication when module ground potentials vary. The 14-SOIC interface also suits established controller layouts that were designed around this transceiver. Before reuse, engineers must verify the numbered pinout, CAN termination strategy, external protection requirements, bus timing, and whether the original automotive qualification applies.
מומלץ
Door and Access-Control Node
The MC33388D is applicable to door-zone and access-control nodes that exchange commands over an automotive CAN bus and must remain functional despite wiring or ground-reference irregularities. Differential operation supports noise resilience, while receiver-mode control, failure detection, and wake-up logic provide controls relevant to distributed body modules. The stated 5 mA supply current supports a low-power architecture, although mode-specific consumption must be checked. This use requires direct datasheet verification of logic levels, wake behavior, fault thresholds, and the complete 14-pin mapping.
מומלץ
Climate-Control Electronics
Climate-control electronics can use a fault-tolerant CAN physical layer to distribute commands and sensor information among vehicle modules. The MC33388D's differential mode and 1.5 V ground-shift tolerance are useful in systems where ground references vary with load and harness routing. A 5 V supply range and 14-SOIC package support established electronics, while wake-up and standby controls can assist with low-power behavior. Engineers must confirm operating temperature, electromagnetic immunity, bus fault recovery, and thermal performance because those details are not available in the supplied search snippets.
מומלץ
Seat and Occupant-System Electronics
Seat, occupant, and restraint-adjacent electronics often use distributed vehicle networking and can be exposed to ground offsets between modules. The MC33388D's verified differential CAN interface and ground-shift tolerance up to 1.5 V make it relevant to established designs in this environment. Its fault-detection and driver-protection functions can support robust physical-layer behavior. For any new safety-related design, engineers must evaluate the original qualification record, maximum bus fault voltages, failure modes, diagnostic coverage, temperature range, and the availability of a currently supported replacement.
מומלץ
Industrial CAN Sensor Gateway
The MC33388D may be considered for a 5 V industrial CAN gateway that needs differential signaling and tolerance of moderate ground offsets. Its verified 4.75 V to 5.25 V supply range and 5 mA supply current are compatible with many embedded control systems, while driver protection and failure detection are useful on long field harnesses. However, the available evidence identifies an automotive, apparently obsolete part rather than an industrial-qualified current device. Adoption therefore requires verification of industrial temperature range, EMC immunity, ESD handling, bus fault voltage, and long-term supply availability.
מומלץ
סיכום מוצרים מומלצים
נתוני עזר הנדסיים עבור MC33388D — השוואה, הנחיות תכנון ומידע על תאימות.
מדריך בחירה
השוואה עם חלופות
| פרמטר | מוצר זה |
|---|---|
| Package | 14-SOIC |
| Brand | NXP Semiconductors |
| Product Type | Fault-tolerant CAN physical-layer interface |
| Supply Voltage Range | 4.75 V to 5.25 V |
| Supply Current | 5 mA |
| Differential Ground-Shift Tolerance | Up to 1.5 V |
| Fault-Tolerant Operation | Yes |
| Wake-Up Logic | Yes |
| Driver Protection | Yes |
מבדילים עיקריים
- Verified ground-shift tolerance (לעומתTCAN334DR)
- Automotive body-multiplexing positioning (לעומתTCAN332DR)
- Integrated fault-oriented control (לעומתTCAN330DR)
הערות תכנון
Use the original manufacturer land pattern and verify every numbered 14-SOIC connection against the datasheet before layout release. Keep the CAN-side input/output network, termination connection, and any external protection components close to the corresponding transceiver pins. Keep logic-side routing away from the CAN differential pair, use a continuous ground reference, and provide the supply decoupling values specified by the manufacturer rather than inferring them from generic CAN examples.
Do not treat the MC33388D as a generic 14-pin CAN transceiver or substitute another CAN device solely because both use SOIC packages. A valid replacement requires exact pin-function mapping, compatible 4.75 V to 5.25 V supply operation, equivalent standby and wake behavior, acceptable loop timing, fault thresholds, and protection characteristics. The supplied web results do not verify a drop-in equivalent, so use the original datasheet and manufacturer cross-reference data before attempting substitution.
The verified 5 mA supply-current figure should be included in the module power budget together with controller, transceiver, pull-up, and protection-network loads. Confirm whether the value is typical or maximum and compare normal, standby, wake, and fault states. Because this is an apparently obsolete 5 V part, designers should also plan for lifecycle risk and assess whether a maintained CAN transceiver would reduce sourcing and qualification risk despite requiring a possible board change.
Preserve the differential CAN routing characteristics that make the MC33388D useful in noisy vehicle systems. Route CANH and CANN as a closely coupled pair, avoid discontinuities and unnecessary stubs, and place protection devices where they can clamp bus faults without disrupting high-speed edge behavior. Although the device tolerates ground shifts up to 1.5 V, this does not replace analysis of the complete common-mode range, transient immunity, termination, and maximum bus-fault voltage.
Validate thermal performance at the maximum ambient temperature and worst-case bus-fault condition rather than relying only on the nominal 5 mA supply-current value. Driver protection, abnormal bus states, and surrounding circuitry can change device dissipation. The verified search snippets do not provide thermal resistance, maximum junction temperature, or fault-current limits, so obtain the original datasheet values before defining copper-area requirements or proving automotive environmental reliability.
מידע על תאימות
The verified results describe the MC33388D as an automotive device but do not explicitly state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. Those fields remain unknown pending manufacturer documentation.
