NXP Semiconductors

MC68331CFC25 - 32-Bit 25MHz ROMless MCU | NXP

Teilenummer: MC68331CFC25 ✗ Abgekündigt
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132-PQFP Package 25 MHz Speed ROMless Memory
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Preis aktualisiert: 2026-10-21
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MC68331CFC25 Übersicht

The NXP Semiconductors MC68331CFC25 is a 32-bit, 25 MHz ROMless microcontroller IC in a 132-pin PQFP package measuring 24.13 mm by 24.13 mm. It combines a CPU32 processor with system integration and communications peripherals for embedded control applications. The verified distributor listing identifies the device as a ROMless MCU, while the manufacturer description identifies the CPU32, System Integration Module (SIM), General Purpose Timer (GPT), and Queued Serial Module (QSM).

A microcontroller is a semiconductor that integrates a processor core, memory interface, peripherals, and control logic into one device. The MC68331 belongs to the MCU32 embedded-processing hierarchy and uses a common intermodule bus, or IMB, to connect its internal modules. This architecture makes it useful where a system needs deterministic control, serial communication, timer functions, and external memory access without a dedicated host processor.

The verified device identity specifies a 32-bit architecture, 25 MHz operating frequency, ROMless configuration, and 132-PQFP package. The MC68331CFC25 suffix indicates a specific package, temperature, and speed ordering configuration, but detailed electrical limits, memory sizes, peripheral ratings, and operating-temperature values were not included in the supplied verified data. Those parameters are therefore not inferred here. The manufacturer’s product page is the appropriate source for confirming the complete technical configuration before design-in.

Typical application domains include industrial equipment, communications controllers, motion or sequencing systems, and other embedded platforms that benefit from the CPU32 architecture. In a typical design, the CPU32 executes control software from external memory, while the SIM, GPT, and QSM modules support system integration, timing, and serial communication. The 132-pin PQFP package provides a substantial pin count for external bus, memory, peripheral, control, and signal connections.

The primary design consideration is that the MC68331 is ROMless: external memory is required for program storage or data storage according to the system architecture. Engineers should verify memory-interface compatibility, peripheral multiplexing, pin assignments, clock requirements, and electrical constraints against the manufacturer datasheet before layout or firmware deployment.

This page consolidates the verified distributor identity, manufacturer architecture description, package information, sourcing links, and engineering limitations for MC68331CFC25. It intentionally avoids unsupported claims about unprovided electrical specifications and distinguishes confirmed facts from data requiring a datasheet review.

Drop-in-Alternativen für MC68331CFC25 – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.

Varianten dieser Serie

Modelle derselben Serie, die drop-in-kompatibel sind mit MC68331CFC25 (gleiche Bauform und Footprint) – abweichend in Intermodule Bus, Package.

NXP Semiconductors
Intermodule Bus: IMB (common peripheral bus)
Package: 144-LQFP (20 x 20 mm)
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MC68331CFC25

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NXP Semiconductors
📦 132-PQFP
32-bit microcontroller IC · CPU32 · 32-bit · 25 MHz · ROMless · 132-PQFP · 24.13 mm x 24.13 mm · IMB

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MC68331CAG25

✅ Drop-In
NXP Semiconductors
📦 132-PQFP
CPU32 (32-bit, M68300 family) · 25 MHz · ROMless (external) · 18 · 1 module (multi-channel) · QSM (SPI + SCI/UART)

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$14.5 / Stück

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MC68331CFC25 Grenzwerte & elektrische Eigenschaften

Product Type 32-bit microcontroller IC
Processor Core CPU32
Architecture 32-bit
Operating Frequency 25 MHz
Program Memory ROMless
Gehäuse 132-PQFP
Package Body Size 24.13 mm x 24.13 mm
Intermodule Bus IMB
System Integration Module SIM
General Purpose Timer GPT
Queued Serial Module QSM
Data Manipulation High-performance
Manufacturer Freescale Semiconductor, represented by NXP Semiconductors
Montageart Surface mount

MC68331CFC25 24.13 mm x 24.13 mm Pinbelegungsleitfaden

Pinbelegung für MC68331CFC25 (24.13 mm x 24.13 mm-Gehäuse). Dieser digitale IC umfasst GPIO, Kommunikationsschnittstellen (UART, SPI, I2C) und Versorgungspins. Alternative Pin-Funktionen und Konfigurationsoptionen entnehmen Sie dem Herstellerdatenblatt. Unverzichtbar für Embedded-System-Design und PCB-Layout.

Pinbelegungsdiagramm für MC68331CFC25 im 24.13 mm x 24.13 mm-Gehäuse

Keine detaillierten Pinbelegungsdaten verfügbar für MC68331CFC25.

Siehe die Datenblatt für die vollständige Pin-Konfiguration.

Typische Anwendungen

MC68331CFC25 ist geeignet für 6 Anwendungs: Industrial Embedded Control, Communications Controller, Motor and Motion Sequencing, Data Acquisition and Signal Conditioning, Legacy Equipment Maintenance, Embedded Test and Measurement.

🏭

Industrial Embedded Control

The MC68331CFC25 fits legacy industrial embedded-control platforms that need a 32-bit CPU32 processor with dedicated system-integration and timing resources. Its 25 MHz verified operating frequency provides a defined processing target for control loops, sequencing, and supervisory logic, while the 132-PQFP package offers many external connections for memory and peripheral circuitry. Because the device is ROMless, the implementation must provide external program storage and must be checked for the required bus timing. The supplied data does not confirm industrial temperature or EMC qualification, so qualification requirements should remain separate from functional suitability.

🌐

Communications Controller

The MC68331CFC25 is suitable for evaluating communications-controller designs based on the CPU32 and Queued Serial Module architecture. The QSM provides a relevant serial-processing resource, while the SIM and IMB support integration with other internal modules. Its 25 MHz CPU32 core can coordinate message handling and supervisory functions when the system is designed around the documented external-memory arrangement. The supplied data does not identify specific baud rates, protocol modes, electrical interfaces, or transceiver levels, so those parameters must be verified before selecting a physical communications link.

⚡

Motor and Motion Sequencing

The General Purpose Timer and CPU32 processing core make the MC68331CFC25 a candidate for motor sequencing and motion-control supervisory functions where legacy architecture continuity matters. The MCU can coordinate timing events, state machines, interlocks, and external I/O in a system that already depends on the MC68331 platform. The verified 25 MHz frequency is a concrete baseline, but motor-drive performance depends on unprovided PWM resolution, capture features, electrical limits, and timer specifications. Those details must be confirmed in the manufacturer documentation before claiming direct suitability for a new motor drive.

📡

Data Acquisition and Signal Conditioning

MC68331CFC25 can be evaluated in data-acquisition and signal-conditioning controllers that require a 32-bit processor, timers, serial communications, and external memory. The CPU32 can manage sampling coordination and control sequences, while GPT and QSM resources support timing and data-transfer functions. Its ROMless configuration favors systems already designed around external memory, but it also increases the importance of bus timing and memory-device validation. No ADC, DAC, input-voltage, sampling-rate, or sensor-interface specifications were provided, so analog front-end selection must be handled separately.

🔧

Legacy Equipment Maintenance

The MC68331CFC25 is particularly relevant to maintenance and continuation projects for equipment built around the Freescale CPU32 architecture. A ROMless 132-PQFP device can preserve an existing board architecture when the original MCU, firmware model, and external memory arrangement are already designed in. The verified package dimensions and device identity help identify the correct physical part, but replacement approval still requires pin-level comparison, electrical-limit comparison, and legacy software validation. Engineers should avoid assuming that another 32-bit MCU is interchangeable solely because it has a similar instruction or control-system role.

📺

Embedded Test and Measurement

The MC68331CFC25 can serve as a controller in legacy test and measurement equipment where a CPU32 processor, timers, serial communications, and external memory are needed. Its 25 MHz operating point and integrated SIM, GPT, and QSM modules provide a defined platform for sequencing tests and exchanging results with external equipment. The supplied source does not specify measurement accuracy, instrumentation interfaces, isolation, or temperature range, so those requirements must be implemented outside the MCU and validated at system level. This part is best considered for continuity designs rather than an unqualified replacement for a modern dedicated instrument controller.

What is MC68331CFC25?
MC68331CFC25 is a 32-bit ROMless microcontroller from the Freescale Semiconductor MC68331 family, now represented by NXP Semiconductors. It uses a CPU32 processor and includes SIM, GPT, and QSM modules connected through the IMB. The verified distributor specification identifies a 25 MHz device in a 132-PQFP package measuring 24.13 mm by 24.13 mm.
What is the operating frequency of MC68331CFC25?
The MC68331CFC25 operates at 25 MHz according to the verified DigiKey product listing. The listing describes the part as a 32-bit, 25 MHz ROMless microcontroller. Frequency-related timing, memory wait-state, and peripheral-clock details should be confirmed in the manufacturer documentation before final system design.
Is MC68331CFC25 ROMless?
Yes. MC68331CFC25 is identified as a ROMless microcontroller by the verified distributor listing. ROMless means that program storage is not integrated as mask ROM in the device, so the intended system architecture must provide the required program memory externally. Exact memory-interface requirements are not included in the supplied verified data.
Where can I download the MC68331CFC25 datasheet?
The official manufacturer product page is https://www.nxp.com/products/MC68331. It describes the MC68331 family and its CPU32, SIM, GPT, and QSM architecture. The supplied data did not provide a verified manufacturer PDF URL or datasheet document number, so engineers should use the NXP product page to locate the current technical documentation and confirm package, memory, and electrical details.
What package does MC68331CFC25 use?
MC68331CFC25 uses a 132-PQFP package. The verified DigiKey specification gives the package dimensions as 24.13 mm by 24.13 mm. Because a complete verified pinout was not supplied, pin numbers and signal names are not fabricated in this data record. The package drawing and pin-assignment table in the official documentation should control PCB layout.
What peripherals are integrated into MC68331CFC25?
The manufacturer description identifies a CPU32 processor, a System Integration Module (SIM), a General Purpose Timer (GPT), and a Queued Serial Module (QSM). These modules communicate through the common intermodule bus, or IMB. The supplied source does not enumerate every peripheral, electrical rating, or register, so additional peripheral assignments require the manufacturer datasheet.
Can MC68331CFC25 replace another microcontroller without a PCB redesign?
A drop-in replacement cannot be confirmed from the supplied substitute data. The search results contain generic cross-reference tools and mention MPC5554, TMS320F2808, and STM32F103 as similar controllers, but they do not establish the same package, pinout, memory interface, and electrical behavior required for MC68331CFC25. Treat those parts as functional references, not drop-in replacements.
Is MC68331CFC25 in stock?
Stock information is not uniformly available across the supplied sources. DigiKey’s listing says the part can be bought and shipped today, while other distributor pages show in-stock claims or request quotes. Because XAIPART stock is not explicitly provided, the component should be treated as subject to confirmation. Distributor inventory can change without notice.
What is the price of MC68331CFC25?
The verified LCSC result lists MC68331CFC25 at a starting price of $16.9121, while other distributor results provide quote or RFQ-oriented pricing rather than a complete price table. The amount above is therefore a reference price as of 2026-10-21, not a guaranteed XAIPART tier quote. Confirm quantity, condition, origin, and current availability before purchasing.
What is the lead time for MC68331CFC25?
A fixed production lead time is not present in the supplied verified data. DigiKey states that the part can ship today for its listing, but this does not establish a contractual lead time for every order size. For procurement, request a current quotation that states inventory, scheduled delivery, and any obsolete-part or allocation conditions in writing.
Is MC68331CFC25 suitable for industrial embedded control?
MC68331CFC25 can be evaluated for industrial embedded-control designs because it combines a 32-bit CPU32 core with timer, serial, and system-integration modules. Its ROMless architecture also supports systems using external program storage. Suitability cannot be confirmed without the operating-temperature range, voltage limits, timing specifications, and environmental qualification data, which are marked as needed in the specifications.
How does MC68331CFC25 differ from MPC5554?
The supplied search data identifies MPC5554 only as a similar controller and does not provide a verified pin-for-pin comparison. MC68331CFC25 is confirmed as a 32-bit, 25 MHz ROMless device in a 132-PQFP package, while MPC5554 package, memory architecture, clocking, peripherals, and electrical ratings are not supplied here. MPC5554 should not be treated as a drop-in replacement without a complete datasheet-level comparison.
How does MC68331CFC25 differ from STM32F103?
STM32F103 is mentioned in a distributor result as a similar microcontroller, but the result does not establish package, pin, memory, or electrical compatibility. MC68331CFC25 uses the CPU32 architecture and is specified as ROMless in a 132-PQFP package. STM32F103 may require different firmware, memory, peripherals, and PCB connections, so it is not a verified drop-in substitute.
When should I choose MC68331CFC25 over a modern MCU?
Choose MC68331CFC25 when an existing CPU32-based design, external-memory architecture, or legacy peripheral arrangement benefits from continuity with the MC68331 platform. A modern MCU may be preferable when lower cost, smaller package, integrated flash, current tool support, or newer compliance documentation is required. The decision depends on availability of the complete legacy documentation and a controlled migration plan.
What should an engineer verify before designing with MC68331CFC25?
Before layout, verify the complete pinout, power and signal voltage limits, clock requirements, external memory interface, reset behavior, peripheral multiplexing, package drawing, and programming or debug requirements in the official documentation. The supplied verified data confirms the 25 MHz CPU32 identity and 132-PQFP package, but does not provide enough detail to safely derive those implementation constraints.
What is the MC68331 pinout?
A verified MC68331CFC25 pinout was not included in the supplied data, so no complete numbered pin list is asserted here. The NXP MC68331 product page is the authoritative starting point for locating the current package drawing and pin-assignment documentation. Pin numbering and signal meanings must be copied from that source before a PCB footprint or schematic is released.
How should engineers source MC68331CFC25?
Engineers should compare the listed authorized or established distributor channels and request current pricing, stock, date codes, condition, and traceability before ordering. DigiKey identifies Rochester Electronics as the listing supplier, while the verified results also point to LCSC and other component-sourcing sites. Because availability is changing and the device may be legacy, purchase confirmation should include the exact MPN and suffix.

Technische Referenzdaten für MC68331CFC25 – Vergleich, Designhinweise und Compliance-Informationen.

Auswahlhilfe

Choose MC68331CFC25 when maintaining or recreating an MC68331/CPU32-based design where the 25 MHz processor, ROMless external-memory architecture, and documented SIM/GPT/QSM modules are required. It is also appropriate for legacy industrial, communications, sequencing, and test-equipment platforms where continuity with the Freescale/NXP MCU32 ecosystem is more valuable than adopting a new MCU architecture. Do not choose a modern MCU solely because it is also 32-bit; integrated flash, package size, toolchain, peripherals, and firmware may differ substantially. MPC5554, TMS320F2808, and STM32F103 are functional reference points in the supplied search material, not verified drop-in replacements. Confirm lifecycle status, exact suffix parameters, pinout, memory interface, electrical limits, and availability before committing to a design.

Vergleich mit Alternativen

Parameter Dieses Produkt MC68331
Package 132-PQFP 132-PQFP package family identity; exact suffix not verified
Brand NXP Semiconductors NXP Semiconductors
Processor Core CPU32 CPU32
Architecture 32-bit 32-bit
Intermodule Bus IMB IMB
Peripheral Modules SIM, GPT, QSM SIM, GPT, QSM
Drop-In Confirmation Target device Family identity only; exact suffix compatibility not verified

Wichtigste Unterscheidungsmerkmale

  • Confirmed CPU32 identity (vs. STM32F103)
  • ROMless architecture (vs. TMS320F2808)
  • Specific 132-PQFP identity (vs. MPC5554)
  • Integrated module set (vs. Generic MCU32 family parts)

Designhinweise

Treat the 132-PQFP package and 24.13 mm x 24.13 mm body dimensions as the starting point for mechanical layout, but obtain the official package drawing before defining the land pattern. The complete MC68331CFC25 pinout was not present in the verified data, so do not infer signal names or pin numbers from a generic PQFP library. Check pin clearances, thermal or ground pins, and assembly tolerances against the manufacturer package data.

The MC68331CFC25 is ROMless, so power budgeting must include the external memory and any external interface circuitry rather than treating the MCU as a self-contained flash device. Determine core, I/O, and external supply requirements from the official electrical specifications before selecting regulators or power sequencing. Do not use an inferred voltage range; the supplied data does not contain operating voltage or current limits.

Do not substitute a generic 32-bit MCU based only on CPU word length or broad application similarity. MPC5554, TMS320F2808, and STM32F103 appear in the supplied search results as similar controllers, but the results do not verify a common footprint, pinout, memory map, interrupt architecture, or peripheral compatibility. For MC68331CFC25 replacement, perform a complete datasheet and firmware review and prototype the candidate before production release.

Use the manufacturer’s electrical and package thermal data to evaluate dissipation; no thermal resistance or power-consumption values were supplied in the verified web data. Because the device includes a 32-bit processor and external-memory interface, calculate the complete system thermal path rather than the MCU alone. Use the actual clock, load, supply voltage, package orientation, and board copper area in any later thermal estimate.

Compliance-Informationen

RoHS
Unknown
REACH
Unknown
AEC-Q100
Unknown
Bleifrei
Unknown
Halogenfrei
Unknown
Konfliktmineralien
Unknown

Compliance information was not included in the supplied verified web data. Do not infer RoHS, REACH, automotive qualification, lead-free status, or conflict-minerals status.

Ähnliche Suchanfragen

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Verwandte Bauteile & Begriffe

NXP Semiconductors Freescale Semiconductor MC68331CFC25 MC68331 CPU32 32-bit microcontroller MCU32 ROMless microcontroller embedded controller System Integration Module SIM General Purpose Timer GPT Queued Serial Module QSM IMB 132-PQFP PQFP external memory industrial control communications controller legacy embedded system MC68331 pinout MPC5554 TMS320F2808 STM32F103 semiconductor
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