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MC68306EH16BR2 - 16MHz EC000 MPU, 132-PQFP | NXP/Freescale
MC68306EH16BR2

MC68306EH16BR2 - 16MHz EC000 MPU, 132-PQFP | NXP/Freescale

The NXP (formerly Freescale) MC68306EH16BR2 is a 32-bit integrated EC000 microprocessor (MPU) from the M683xx Coldfire/M68K family, operating at 16 MHz and housed in a 132-pin Plastic Quad Flat Pack (PQFP) package measuring 24.13 mm x 24.13 mm. It integrates a 32-bit EC000 core with on-chip peripherals and DRAM controller, providing a single-chip embedded processing solution for industrial control, telecom, and legacy M68K designs. The device is currently listed as Obsolete per distributor stock pages, with remaining inventory available through authorized distributors and aftermarket suppliers. An MPU (Microprocessor Unit) is a CPU-centric integrated circuit that requires external memory and peripherals to form a complete system. The M68K family traces its lineage to the Motorola 68000 architecture introduced in 1979, which pioneered a flat 32-bit programming model and orthogonal instruction set. The MC68306 specifically integrates the EC000 core with system glue logic - DRAM controller, chip-select logic, timers, and serial ports - to reduce total BOM in cost-sensitive embedded designs. Within the broader taxonomy, the MC68306 sits under microprocessor -> MPU -> 32-bit processor -> embedded processor -> integrated circuit. Key features include a 16 MHz maximum clock frequency, 5.0 V I/O voltage, single 32-bit core, and integrated DRAM controller. The PQFP-132 package supports surface-mount assembly on legacy through-hole-friendly footprints and remains compatible with the original 68306 reference designs. The architecture retains M68K instruction compatibility, allowing code developed for earlier 68000/68306 designs to migrate without software rewrites. The part supports up to 4 GB of address space through 32-bit linear addressing. Typical applications include industrial automation controllers, telecommunications infrastructure, point-of-sale terminals, legacy M68K embedded systems, and factory automation equipment. The integrated DRAM controller and chip-select logic reduce external component count compared to discrete CPU implementations. Designers continue to specify the MC68306EH16BR2 for maintenance of installed bases and for long-life-cycle industrial systems where requalification costs discourage migration to newer architectures. When designing with this device, note that the part is Obsolete per current distributor listings (as of 2026-10-16); consider NXP's recommended migration path to ColdFire MCF5208 or similar modern M68K-compatible devices for new designs. PCB layout must accommodate the 132-pin PQFP footprint with adequate thermal relief. Decoupling capacitors should be placed close to the multiple VCC/GND pairs. This page synthesizes distributor pricing, lifecycle status, and migration options not found in the original manufacturer datasheet.

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MC68331CAG25 - 32-bit M68300 MCU 25MHz | NXP LQFP-144
MC68331CAG25

MC68331CAG25 - 32-bit M68300 MCU 25MHz | NXP LQFP-144

The NXP Semiconductors MC68331CAG25 is a highly-integrated 32-bit microcontroller from the M68300 ColdFire/CPU32 family, operating at 25 MHz and housed in a 144-pin LQFP package measuring 20x20 mm. A 32-bit microcontroller is a microprocessor core with on-chip peripherals, memory interfaces, and I/O designed for embedded control. The MC68331 builds its system from standardized functional modules - the CPU32 processor core, a System Integration Module (SIM), a General Purpose Timer (GPT), and a Queued Serial Module (QSM) - that interconnect through a common Intermodule Bus (IMB). This modular taxonomy places the device in the larger hierarchy of CPU -> MPU -> microcontroller -> embedded processor -> semiconductor. Key features include 25 MHz CPU32 core performance, ROMless architecture for flexible external program memory, 18 programmable I/O lines, internal oscillator support, and a 144-pin LQFP (20x20 mm) footprint. The SIM integrates chip-select logic, interrupt control, and bus arbitration; the GPT supplies configurable timers for event capture and waveform generation; the QSM provides queued SPI and SCI/UART channels for asynchronous and synchronous serial communications. The CPU32 core uses a 32-bit Von Neumann architecture with a 32-bit data path and 32-bit address bus. The ROMless variant routes external program fetch through the SIM's chip-select and wait-state logic, enabling large code and data spaces. The modular IMB topology makes peripheral expansion and configuration relatively simple compared with single-block designs. Typical applications include automotive body and chassis controllers, industrial automation and motor drives, robotics, process control, factory automation, and embedded communications gateways where deterministic 32-bit performance and flexible memory mapping are required. When designing with this part, prioritize decoupling and IMB signal integrity: place 0.1 uF ceramic capacitors near each VDD/VSS pair, route the IMB clock with controlled impedance, and verify chip-select timing with worst-case wait-state scenarios. Note that this MPN is marked End of Life on the NXP product page; plan for obsolescence accordingly. This page consolidates distributor pricing, drop-in M68300 alternatives, and design considerations not assembled in the manufacturer datasheet alone.

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MC68331CEH25 - 25MHz CPU32 M68300 Microcontroller PQFP-132 | NXP
MC68331CEH25

MC68331CEH25 - 25MHz CPU32 M68300 Microcontroller PQFP-132 | NXP

The NXP (formerly Freescale/Motorola) MC68331CEH25 is a 32-bit modular microcontroller built around the CPU32 core running at 25 MHz, packaged in a 132-pin PQFP (24.13 mm x 24.13 mm) and supplied as a ROMless device for external program memory. It integrates a System Integration Module (SIM), a General-Purpose Timer (GPT) and a Queued Serial Module (QSM) on a common intermodule bus (IMB), and is a member of the M68300 modular microcontroller family. According to the NXP product page, the part is announced as End of Life, so engineers should plan replacement now rather than treating the listing as a long-term supply line. A 32-bit microcontroller is an embedded processing IC whose datapath, registers and ALU are 32 bits wide, enabling single-instruction operations on wide data words and larger linear address spaces than 8- or 16-bit parts. The M68300 family belongs to the ColdFire/M68K lineage (CPU32 -> M68k -> ColdFire -> embedded 32-bit MCU) of CISC RISC-style CISC cores, and within NXP's portfolio it sits below the ColdFire MCF5xxx line. The MC68331CEH25 uses the standard M68300 modular IP blocks, which simplifies migration within the family. Key features include 25 MHz CPU32 core performance, ROMless operation for flexible external memory interfacing, the GPT timer block (with capture, compare and pulse-width modulation functions), the QSM providing queued SCI and SPI channels, and the SIM block that handles chip-select generation, system protection, clock synthesis and interrupt prioritization. The 132-pin PQFP footprint gives access to the full external bus plus all on-module peripheral pins. Typical applications include industrial control systems, automotive body and chassis electronics (pre-CAN-era platforms), factory automation, motor control via the GPT PWM outputs, and embedded communication gateways that leverage the QSM serial channels. The 132-pin PQFP package and ROMless architecture make the part attractive where high-performance 32-bit processing is needed alongside custom boot/storage strategies. When designing with this device, ensure the external bus and chip-select signals are properly terminated, the 25 MHz system clock is stable, and the Vcc rails meet the M68300 family DC specifications referenced in the datasheet. Because the part is in NXP's End-of-Life program, source any qualification stock carefully and review the discontinuance notice for the official last-time-buy window and recommended migration target.

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MC68331CFC25 - 32-Bit 25MHz ROMless MCU | NXP
MC68331CFC25

MC68331CFC25 - 32-Bit 25MHz ROMless MCU | NXP

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.

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MC68331CFC25B1 - 32-Bit 25 MHz ROMless MCU | NXP
MC68331CFC25B1

MC68331CFC25B1 - 32-Bit 25 MHz ROMless MCU | NXP

NXP Semiconductors MC68331CFC25B1 is a 32-bit, 25 MHz ROMless microcontroller integrated into a 132-pin PQFP package measuring 24.13 mm by 24.13 mm. The device combines a CPU32 processor with peripheral subsystems connected through a common intermodule bus, making it suitable for embedded control, communications, industrial automation, and legacy system upgrades. The verified distributor data identifies the MC68331 as a highly integrated MCU with ROMless configuration and HCMOS technology. A microcontroller is a semiconductor device that combines a processor core, memory interfaces, timers, communications peripherals, interrupt control, and other hardware functions on one integrated circuit. In the hierarchy of electronic components, the MC68331 belongs to the microcontroller, embedded processor, and semiconductor categories. Its ROMless architecture requires an external memory source for program storage, while its integrated peripherals can reduce the component count in an embedded control design. The principal verified characteristics are a 32-bit CPU32 architecture, a 25 MHz operating frequency, ROMless operation, and a 132-pin PQFP package. These specifications define the external memory and clock requirements of the design while providing a large pin count for peripheral connections. The 24.13 mm by 24.13 mm package is substantially larger than a typical small-outline or compact QFP design, but it offers extensive package access for systems requiring numerous I/O, bus, control, and power connections. The MC68331 technical summary describes a highly integrated 32-bit microcontroller with high-performance data-manipulation capabilities and powerful peripheral subsystems. Its standard modules communicate through a common intermodule bus, providing an organized architecture for connecting processor and peripheral functions. This makes the device relevant to established embedded platforms where the surrounding software, memory interface, and peripheral ecosystem are already designed around the MC68331 family. Typical applications include industrial equipment, data acquisition systems, communications controllers, motion or machine control, test equipment, and embedded products that retain an existing MC68331-based architecture. Designers should confirm the exact pinout, electrical limits, memory requirements, timing, peripheral availability, and software compatibility against the relevant manufacturer technical summary before layout or firmware deployment. The verified search results do not provide a complete manufacturer pin table, so no pin names or electrical values are inferred here. For new designs, the critical design trade-off is the ROMless requirement: external program-memory hardware must be specified separately, and the complete board-level memory map must be validated. For repair or continuation of an existing product, preserving the original memory interface, clock source, bus timing, and package footprint is generally more important than selecting a modern controller with a different architecture. The 132-PQFP package and 25 MHz CPU32 position should therefore be treated as fixed constraints when evaluating this MPN. This page consolidates the verified distributor identity, package information, and cross-reference search context for MC68331CFC25B1. It distinguishes documented facts from unavailable technical parameters and emphasizes the need to validate memory, pin, electrical, and lifecycle details with the original technical documentation before making a production decision.

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MC68331CPV20 - 32-Bit 20MHz ROMless MCU | Motorola
MC68331CPV20

MC68331CPV20 - 32-Bit 20MHz ROMless MCU | Motorola

The Motorola MC68331CPV20 is a 32-bit ROMless microcontroller operating at 20 MHz and packaged in a 144-LQFP configuration measuring 20 mm by 20 mm. The verified distributor listing identifies the related MC68331CPV20B1 as a CPU32 microcontroller with the same 20 MHz speed and 144-LQFP package. The MC68331 belongs to Motorola's CPU32 family and is designed for embedded control systems that require a 32-bit processor architecture, external memory support, and deterministic peripheral operation. What is a 32-bit ROMless microcontroller? A ROMless microcontroller is a microprocessor or microcontroller device whose program memory is not provided internally. Instead, the system designer connects the device to external memory, allowing firmware size and storage technology to be selected for the application. In the broader semiconductor hierarchy, the MC68331 is a microcontroller, embedded processor, CPU32-family device, and semiconductor component used to combine control logic, memory access, and peripheral interfaces. The verified information confirms a 20 MHz operating speed, ROMless configuration, and 144-LQFP package for the MC68331 family. These characteristics make the device relevant to industrial controllers, embedded instrumentation, communications equipment, and legacy control platforms. The part number suffix CPV20 identifies the package and ordering configuration, but the supplied data does not provide complete electrical limits, memory sizes, peripheral inventory, temperature range, or timing parameters. Those values must be confirmed in the manufacturer datasheet before a new design is released. The CPU32 architecture is significant for systems that benefit from 32-bit register-oriented processing while retaining a conventional external-memory interface. Because the MCU is ROMless, boot code, application firmware, constants, and data storage must be provided externally. Designers should account for address decoding, memory timing, reset behavior, interrupt requirements, and input/output loading during PCB implementation. Typical implementation uses external program memory and carefully designed address, data, control, and peripheral lines. A 20 MHz operating rate should be evaluated against the memory and peripheral timing requirements rather than assumed to be sufficient for every workload. Signal-integrity, grounding, decoupling, and clock-routing practices remain essential in a high-pin-count LQFP implementation. This data page is limited to verified public information and does not infer unavailable electrical specifications. Before purchasing MC68331CPV20, verify the exact package, pinout, memory interface, operating temperature, lifecycle status, and firmware requirements with the manufacturer datasheet or an authorized distributor. The distinction between MC68331CPV20 and the verified MC68331CPV20B1 ordering suffix should also be confirmed before substitution. This page consolidates the verified distributor descriptions, package information, sourcing links, application considerations, and uncertainty notes for MC68331CPV20. It is intended to support engineering research and procurement planning, not to replace the complete manufacturer datasheet or a formal PCB design review.

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MC68331CPV20B1 - 32-Bit 20MHz ROMless MCU | Motorola
MC68331CPV20B1

MC68331CPV20B1 - 32-Bit 20MHz ROMless MCU | Motorola

The Motorola MC68331CPV20B1 is a 32-bit, 20 MHz, ROMless CPU32 microcontroller packaged in a 144-LQFP measuring 20 mm by 20 mm. It is designed for embedded control systems requiring a high-performance processor and externally supplied program memory. The verified distributor listing identifies the device as a CPU32 microcontroller with a 20 MHz clock and ROMless architecture. What is a ROMless microcontroller? A ROMless microcontroller is a microprocessor or microcontroller that contains a CPU core and peripherals but does not include its application program in an internal ROM. External memory supplies the firmware, allowing program size and memory technology to be selected independently of the MCU. In the system hierarchy, the MC68331 belongs to the microcontroller, embedded processor, and semiconductor categories, while its CPU32 core connects it to Motorola embedded-control products. The 32-bit architecture and 20 MHz operating frequency are the principal verified performance characteristics. ROMless operation is useful when firmware must be updated, when several products can share one processor platform, or when external memory must provide the required capacity. The 144-LQFP package provides a substantial pin count for processor signals, buses, interrupts, timers, serial interfaces, and other embedded-system connections, although the complete pin assignments are not present in the supplied verified data. The device is suitable for industrial control, communications equipment, data acquisition, instrumentation, embedded gateways, and legacy CPU32 designs when a 20 MHz embedded controller and external program memory are acceptable. Compared with a microcontroller containing integrated flash, the ROMless approach shifts memory implementation to the board designer and can simplify large-program or field-update architectures. The trade-off is that the external memory interface, address decoding, and memory timing become part of the system design. Before placing the part, verify the manufacturer datasheet for electrical limits, clock requirements, memory-interface timing, reset behavior, and the complete 144-pin pinout. The supplied search data confirms availability, pricing, package information, and core specifications, but does not provide a complete official electrical table or a verified pin mapping. Do not infer those values from the package name alone. This product page consolidates the verified distributor description, source links, pricing data, and engineering cautions for the MC68331CPV20B1. It also documents where external memory, clock design, PCB routing, and legacy software compatibility require further verification before production release.

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MC68332 - 32-Bit Modular MCU CPU32 25MHz | NXP/Freescale
MC68332

MC68332 - 32-Bit Modular MCU CPU32 25MHz | NXP/Freescale

The NXP (formerly Motorola/Freescale) MC68332 is a highly-integrated 32-bit modular microcontroller built around the CPU32 core, operating at up to 25 MHz, and housed in a 132-pin PQFP package (with the die also offered in 144-QFP and other variants). It combines high-performance 32-bit data manipulation with powerful on-chip peripherals and is designed for automotive and industrial real-time control. A 32-bit modular microcontroller is a type of microprocessor that pairs a 32-bit CPU core with configurable on-chip peripheral modules (timers, serial, memory) that communicate over an internal bus. Within the system hierarchy, the MC68332 sits as: microcontroller -> embedded MCU -> 32-bit MCU -> automotive MCU -> Motorolla 68k family -> ColdFire successor. It belongs to the broader category of microcontrollers (MCU) and semiconductor ICs, targeting real-time embedded control where deterministic timer I/O and robust serial communication are required. Key features of the MC68332 include the CPU32 core (a 68020-derived 32-bit processor with 32-bit internal architecture), an integrated Time Processing Unit (TPU) for microsecond-resolution I/O timing without CPU intervention, a Queued Serial Module (QSM) supporting SPI and SCI/UART, a System Integration Module (SIM) with chip-select logic and clock generation, 2 KB of internal SRAM, and ROMless operation requiring external program memory. Variants ship in PQFP-132 packages (typical pinout 24.13 mm x 24.13 mm body). Architecturally, the MC68332 uses a von Neumann-style common intermodule bus (IMB) connecting the CPU32, TPU, QSM, SIM, and external memory interface. The CPU32 retains the M68000 instruction set with extensions for bus sizing and improved multiply/divide. The TPU is a microcoded state-machine peripheral that can execute complex timing sequences independently, freeing the CPU for application code. Versions such as MC68332ACEH25 (25 MHz, PQFP-132) and MC68332GCEH25 (25 MHz, PQFP-132) reflect different speed grades and screening levels. Typical applications include automotive engine control units (ECUs), industrial servo drives, printer/copier controllers, medical instrumentation, and any real-time embedded system needing deterministic I/O timing. The TPU makes the part particularly well suited to ignition timing, injection control, PWM-driven motor control, and similar time-critical loops where software jitter is unacceptable. A key design consideration when migrating or sourcing the MC68332 is its current End-of-Life (EOL) status - it is not recommended for new designs. For new designs, NXP suggests migrating to the ColdFire or MCX A series. Designers maintaining legacy systems should consult the MC68332 Technical Summary for bus timing, TPU microcode programming, and external-memory interface requirements; pay particular attention to the SIM chip-select configuration registers and the external bus arbitration logic. This page synthesizes distributor stock from DigiKey, manufacturer technical summary from NXP, and design guidance not found in any single source to help engineers evaluate, source, and design with the MC68332 family.

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MC68332ACAG25 - 32-bit 25MHz CPU32 MCU, 144-LQFP | NXP
MC68332ACAG25

MC68332ACAG25 - 32-bit 25MHz CPU32 MCU, 144-LQFP | NXP

The NXP (formerly Freescale) MC68332ACAG25 is a 32-bit highly-integrated microcontroller from the M68300 (CPU32) family that combines a 25 MHz CPU32 core, 2 KB on-chip SRAM, a 16-bit Time Processing Unit (TPU), a Queued Serial Module (QSM), and a System Integration Module (SIM) on a single die, housed in a 144-pin LQFP (20x20 mm) package. Key features include a 25 MHz CPU32 core with 32-bit data and address paths, 2 KB of on-chip SRAM, a programmable 16-channel TPU for complex timing, and a QSM that provides both queued SPI and SCI/UART channels. The device is ROMless, requiring external program memory, and supports a 5 V supply. Industrial-grade parts are specified for -40C to +85C operation, while automotive AEC-Q100 parts (suffix VAG) span -40C to +125C. The MC68332 belongs to the M68300 microcontroller family, a 32-bit evolution of the 68000 architecture. It is built from standard modules communicating over a common Intermodule Bus (IMB), which lets designers add peripherals like the CAN module (MC68376) or enhanced TPU (MC68333) by family upgrade. Architecturally, the CPU32 core is binary-compatible with the 68000 instruction set and adds multiply/accumulate instructions for DSP-like workloads. Typical applications include automotive body and chassis ECUs (via the VAG/AEC-Q100 variants), industrial motion and motor controllers that exploit the TPU, CAN-enabled networked sensors via QSM, and embedded control requiring a deterministic real-time executive. The ROMless design is favored when designers want a single MCU platform populated with custom boot firmware or when field upgradability via external flash is required. When designing with the MC68332, plan for a minimum external bus cycle of 4 clocks at 25 MHz (160 ns) and ensure the VCO-based clock generator is configured per the datasheet for stable operation. For new production, prefer the VAG25 (AEC-Q100) or the newer ColdFire successors because the ACAG25 industrial variant is being discontinued by NXP. This page consolidates distributor pricing, parameter-based drop-in alternatives, and practical design notes not available from the manufacturer datasheet alone, helping engineers evaluate lifecycle risk and pin-compatible replacements for legacy designs.

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MC68332ACEH16 - 32-Bit 16MHz CPU32 MCU | NXP | Industrial
MC68332ACEH16

MC68332ACEH16 - 32-Bit 16MHz CPU32 MCU | NXP | Industrial

The NXP Semiconductors MC68332ACEH16 (Freescale/Motorola heritage) is a highly-integrated 32-bit microcontroller built around the CPU32 core, operating at 16 MHz from a 5V supply, with 2 KB of on-chip RAM in a ROMless configuration, packaged in a 132-pin PQFP (24.13 x 24.13 mm) surface-mount body. A 32-bit embedded microcontroller combines a processor core, memory, and multiple peripheral subsystems on a single silicon die, interfacing through a common intermodule bus (IMB). The M683xx family pioneered this modular architecture, allowing the same CPU to be paired with different peripheral sets. Microcontrollers of this class sit above 8-bit MCUs in the hierarchy, serving industrial control, automotive, and communication equipment that require 32-bit data manipulation with deterministic real-time behavior. Key features of the MC68332ACEH16 include the time processing unit (TPU), a co-processor dedicated to timing operations such as PWM generation, input capture, and period measurement with minimal CPU intervention. The queued serial module (QSM) provides both a queued serial peripheral interface (QSPI) and a serial communications interface (SCI). The system integration module (SIM) handles clock generation, external bus control, chip selects, and system protection functions. Being ROMless, the device executes code from external memory via its 32-bit external bus, giving designers full firmware flexibility. Architecturally, the CPU32 core is an upward-compatible evolution of the classic 68020-derived instruction set, optimized for embedded control with additional low-power STOP modes and table lookup/interpolate instructions. Its deterministic interrupt structure and IMB-based module coupling deliver predictable real-time latency, a critical property for motor control and timing-critical industrial systems. Typical applications include industrial automation controllers, automotive engine and body control legacy platforms, network communication equipment, and test instrumentation. The TPU makes the part particularly strong in multi-channel timing applications such as injector drive, stepper control, and encoder processing. Design consideration: because the part is ROMless and 5V-only, new designs must budget an external EPROM/flash and level-shifting for modern 3.3V peripherals. Note the 16 MHz grade vs the 25 MHz variant, as firmware timing loops differ. This page synthesizes distributor pricing, drop-in alternative analysis, and practical design notes not found in the manufacturer datasheet, with data verified as of 2026-10-18.

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MC68332ACEH25 - 32-Bit 25MHz CPU32 MCU, 132-PQFP | NXP
MC68332ACEH25

MC68332ACEH25 - 32-Bit 25MHz CPU32 MCU, 132-PQFP | NXP

The NXP (formerly Freescale) MC68332ACEH25 is a 32-bit modular microcontroller in the M68300 CPU32 family, integrating a 32-bit CPU32 core, System Integration Module (SIM), Time Processing Unit (TPU), and Queued Serial Module (QSM) on a common intermodule bus (IMB). The ACEH25 speed-grade variant runs the CPU32 core at 25 MHz, delivers 32-bit data manipulation, and is offered as a ROMless design in a 132-pin PQFP (24.13 x 24.13 mm) package rated for the automotive -40C to +85C operating range. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, memory, and programmable peripherals around an internal bus. The M68300 family is built from standardized modules - CPU32, SIM, TPU, QSM, and others - communicating through the IMB. This modular architecture let Freescale/NXP reuse verified IP blocks across automotive and industrial SKUs while letting customers add application-specific peripherals externally. Within the power-management and embedded hierarchy, the MC68332 sits as an automotive-grade 32-bit MCU family between 8/16-bit legacy controllers and the higher-performance ColdFire successors. Key features of the MC68332ACEH25 include the CPU32 core (true 32-bit internal architecture, 32-bit external data bus), 25 MHz system clock, 2 KB of on-chip SRAM, ROMless external-memory interface, 16-channel TPU for microsecond-accurate timing events, QSM with queued SPI and SCI/UART, and a 2 KB system integration RAM with chip-select logic. The SIM provides the external bus interface, DRAM/ROM/SRAM controllers, and system-protection features. The part is specified at 5 V supply and 25 MHz and is qualified to automotive-grade temperature and quality standards. Typical applications include automotive engine control units (ECU), anti-lock braking systems (ABS), industrial motion control, and aerospace/avionics subsystems. The TPU makes the device especially well-suited to event-driven timing tasks such as crank/cam tooth decoding, PWM generation, and stepper motor sequencing. Legacy industrial controllers using M68300 firmware can extend their lifecycle by continuing to source the ACEH25 speed grade. When designing with the MC68332ACEH25, route the 5 V analog and digital supplies separately and place bulk decoupling within 25 mm of the PQFP power pins; the 132-pin footprint requires thermal relief vias under the die-attach pad when used in high-cavity automotive enclosures. Firmware written for the CPU32 is forward-compatible with ColdFire V1 at the source level after recompilation.

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MC68332ACEH25 - 32-Bit 25MHz MCU CPU32 | NXP | 132-PQFP
MC68332ACEH25

MC68332ACEH25 - 32-Bit 25MHz MCU CPU32 | NXP | 132-PQFP

The NXP Semiconductors MC68332ACEH25 is a highly-integrated 32-bit ROMless microcontroller combining the CPU32 core at 25 MHz with a system integration module (SIM), a time processing unit (TPU), and a queued serial module (QSM), housed in a 132-pin PQFP (24.13 x 24.13 mm) package. A 32-bit modular microcontroller is a class of embedded processor built from independent functional blocks sharing a common intermodule bus (IMB). In the broader hierarchy, the MC68332 belongs to the Motorola-originated M683xx family of 68K-architecture microcontrollers, positioned above 8-bit and 16-bit MCUs in data-manipulation capability and below full application processors in complexity. Standardized modules allowed Motorola, later Freescale and now NXP, to rapidly derive application-tailored derivatives from the same die platform. Key features include the 32-bit CPU32 core clocked at 25 MHz, ROMless program memory operation requiring external FLASH or RAM, the TPU coprocessor providing 16 independent timing channels for complex event sequencing without CPU intervention, and the QSM combining a queued serial peripheral interface with a serial communications interface on shared pins. The IMB architecture decouples peripheral timing from CPU execution, so the TPU can generate PWM, capture, and motor-control timing waveforms with microsecond-level determinism while the CPU32 handles application logic. The SIM supplies system clock generation, external bus control, chip-select logic, and watchdog protection. According to the NXP MC68332 technical summary (MC68332TS), the modular design facilitates rapid development of devices tailored for specific applications. Typical applications include industrial automation controllers, automotive body and powertrain modules, thermal sensor data loggers with external FLASH and RAM, and motor-control systems that exploit the TPU's 16 timing channels. Designers must budget for external program memory since the part is ROMless, and must recalibrate clock-dependent firmware when substituting 16 MHz variants for 25 MHz parts. This page synthesizes distributor pricing context, EOL status, drop-in alternative analysis, and practical design notes not found in the manufacturer datasheet.

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MC68332ACFC16 - 32-Bit Modular MCU 16MHz ROMless 132-PQFP | NXP
MC68332ACFC16

MC68332ACFC16 - 32-Bit Modular MCU 16MHz ROMless 132-PQFP | NXP

The NXP MC68332ACFC16 is a 32-bit modular microcontroller built on the CPU32 core, operating at 16.78 MHz, housed in a 132-pin PQFP (Bumpered QFP, 24.13x24.13 mm) package. It integrates a CPU32 processor with powerful peripheral subsystems including a Time Processing Unit (TPU), Queued Serial Module (QSM), and a System Integration Module (SIM) that provides system protection, clock generation, and chip-select logic. The 'A' suffix denotes the standard 5V industrial temperature variant, and 'CFC16' encodes the 132-pin PQFP package and 16.78 MHz maximum operating frequency. A modular microcontroller is a class of highly integrated 32-bit microprocessor that combines a CPU core with reconfigurable peripheral modules on a common intermodule bus (IMB). Within the broader semiconductor hierarchy, the M68332 family sits between standalone microcontrollers and application-specific microcontrollers, positioned in industrial control and automotive powertrain segments where real-time deterministic interrupt response and on-chip peripheral integration reduce BOM cost and PCB complexity compared to multi-chip designs. Key features include 32-bit data path with 24-bit addressing, 2 KB of on-chip SRAM, ROMless external memory interface, 15 dedicated I/O lines plus multiplexed peripheral I/O, two serial interfaces via the QSM (one SCI for UART, one SPI), seven external interrupt sources, and the distinctive Time Processing Unit (TPU) which is a dedicated microcoded engine for complex timing I/O without CPU intervention. The chip is manufactured on a 0.8 micron HCMOS process and operates from a single 5V supply. The architecture centers on the CPU32 core, an evolution of the Motorola 68000 instruction set, executing M68000 instructions plus new table-lookup and interpolate commands tailored for DSP-style operations. The TPU handles complex timing tasks (PWM generation, period measurement, quadrature decode) autonomously, freeing the CPU for control loops and communication stacks. Three independent chip-select outputs and a watchdog timer are integrated in the SIM block. Typical applications include automotive engine and transmission control units, industrial automation controllers, robotic motion controllers, CAN node gateways via add-on CAN modules, and legacy avionics subsystems. The wide 5V operating range with industrial -40C to +85C temperature grading makes the MC68332ACFC16 particularly suited to harsh-environment designs. When designing with this device, ensure each VDD/VSS pair is decoupled with a 100 nF ceramic capacitor placed within 5 mm of the pin. The crystal oscillator circuit requires careful PCB layout to meet the 16.78 MHz jitter spec; refer to the manufacturer's hardware design notes for guard trace and ground island recommendations. This page synthesizes distributor pricing, drop-in pin-compatible M68332 family alternatives, and practical PCB layout guidance not found in the manufacturer datasheet alone, helping engineers source and qualify this classic 32-bit MCU for both new designs and long-lifecycle maintenance programs.

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MC68332ACFC20 - 32-Bit CPU32 MCU, 20MHz, 132-PQFP | NXP
MC68332ACFC20

MC68332ACFC20 - 32-Bit CPU32 MCU, 20MHz, 132-PQFP | NXP

The NXP MC68332ACFC20 is a highly-integrated 32-bit modular microcontroller in the M68300 (CPU32) family, built around a 32-bit CPU32 core running at 20 MHz and packaged in a 132-pin PQFP (24.13 x 24.13 mm). The part is part of the Freescale/NXP M68332 family, with the 'CFC' suffix denoting the 132-pin PQFP plastic package and '20' indicating the 20 MHz CPU clock. The device is described in the verified web data as a 'CPU32 M683xx Microcontroller IC 32-Bit 20MHz ROMless'. What is a CPU32 microcontroller? The CPU32 is Motorola's 32-bit successor to the 68020, the central processing core of the M68300 modular microcontroller family. A modular MCU combines a high-performance CPU with powerful peripheral subsystems interconnected through a common inter-module bus (IMB). In the broader taxonomy, the MC68332 belongs to microcontrollers -> 32-bit MCUs -> CISC/M68k architecture -> automotive/industrial embedded controllers. Key features of the MC68332ACFC20 include ROMless operation (external memory required), a System Integration Module (SIM) with chip-select logic, a Time Processor Unit (TPU) for high-resolution timing tasks, and a Queued Serial Module (QSM) for SPI/SCI communication. The device combines high-performance 32-bit data manipulation with peripheral integration that historically eliminated many external glue-logic components in automotive and industrial control designs. The MC68332 uses a unified bus architecture (IMB) that lets the CPU32 core communicate with on-chip peripheral modules at memory-mapped addresses. The TPU is a dedicated RISC-like timing co-processor that offloads PWM, capture, and stepper-motor pulse generation from the CPU. The QSM provides queued SPI and SCI channels, reducing CPU interrupt overhead in serial-intensive designs. Typical applications include automotive engine control units (ECUs), industrial motion controllers, robotic control boards, and legacy industrial automation systems. The wide operating voltage and integrated peripherals historically made the part a workhorse for 1990s-era automotive powertrain and chassis designs. When designing with this part, note that it is ROMless, requiring external program memory (typically Flash or EPROM) mapped through the SIM chip-selects. Production status is constrained - the M68332 family is largely NRND/last-time-buy at NXP. Plan for migration to modern Kinetis or S32K families for new designs.

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MC68332ACFC25 - 32-Bit 25MHz CPU32 MCU ROMless 132-PQFP | NXP
MC68332ACFC25

MC68332ACFC25 - 32-Bit 25MHz CPU32 MCU ROMless 132-PQFP | NXP

The NXP MC68332ACFC25 is a 32-bit modular microcontroller built around the CPU32 core, operating at 25 MHz and packaged in a 132-pin PQFP (24.13x24.13 mm). It integrates a System Integration Module (SIM), a Time Processing Unit (TPU) for autonomous timing, and a Queued Serial Module (QSM) for serial communication, with 2 KB of integrated RAM and no on-chip program ROM. A microcontroller (MCU) is a single-chip computer that combines a CPU, memory, and programmable peripherals. The 68332 family is a highly-integrated 32-bit MCU that combines high-performance data manipulation capabilities with powerful peripheral subsystems. The 68332 sits within the broader M68300 (CPU32) microcontroller family, which itself belongs to the Coldfire/M68K lineage of processors used widely in industrial automation and automotive control. Key features include a 25 MHz CPU32 core delivering 4 MIPS of sustained performance, an intelligent TPU that offloads timing events from the CPU, a QSM that handles SPI/UART serial protocols, and a 16-bit-wide intermodule bus (IMB) interconnecting internal peripherals. The device supports external address/data bus operation for code and data ROM expansion. The architecture is based on a 32-bit internal register model with a 16-bit external data bus and 24-bit address bus for memory expansion. Built-in emulation support, a background debug mode (BDM), and JTAG boundary scan simplify development and field diagnostics. The 132-pin PQFP package exposes the full external bus, the TPU channel I/O, and QSM signals, making it suitable for embedded industrial designs. Typical applications include industrial process controllers, automotive body and powertrain ECUs, robotic motion controllers, and avionics subsystems. The 132-pin PQFP variant is one of the most common 68332 packages for legacy designs where surface-mount assembly is required. Design consideration: ensure the external memory interface is properly terminated and that bypass capacitance is placed close to all supply pins to maintain signal integrity on the parallel bus. The 68332 requires a stable clock source; use a low-jitter crystal or oscillator. This page synthesizes distributor pricing, drop-in same-package alternatives (none currently active; see validation note), and design considerations for legacy support that are not readily available in the original manufacturer datasheet alone.

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MC68332AMEH16 - 16MHz 32-Bit ROMless MCU | NXP | Industrial
MC68332AMEH16

MC68332AMEH16 - 16MHz 32-Bit ROMless MCU | NXP | Industrial

The NXP Semiconductors MC68332AMEH16 is a 32-bit ROMless microcontroller operating at 16 MHz, with 2 KB RAM, CPU32 processing, TPU and QSM peripherals, and a 132-pin PQFP package measuring 24.13 mm by 24.13 mm. The device is identified by distributor listings as an automotive-temperature-grade part in a square gull-wing BQFP package. A microcontroller is a programmable semiconductor that combines a processor core, memory interfaces, communication peripherals, timers, and system-control functions on one integrated circuit. The MC68332 belongs to the CPU32-based MC683xx family and uses modular subsystems connected through an intermodule bus. This architecture makes it a 32-bit embedded controller for legacy industrial, automotive, communications, and real-time control systems rather than a general-purpose application processor. The supplied manufacturer and distributor data confirms a 16 MHz operating frequency, ROMless configuration, 2 KB RAM, TPU, QSM, 32-bit CPU, 132-pin PQFP package, square gull-wing terminal form, surface mounting, and automotive temperature grade. NXP describes a highly integrated design with a CPU32 core, System Integration Module, Time Processing Unit, Queued Serial Module, and other peripheral subsystems. Detailed electrical limits, flash requirements, voltage range, timer architecture, and communication modes remain datasheet-dependent. Because the MCU is ROMless, executable software must be supplied through external program memory or another system-specific boot arrangement; the 2 KB internal RAM is suitable for limited working storage. The 16 MHz clock and modular peripheral set support deterministic embedded control, while the 132-pin package exposes substantially more I/O than small mixed-signal MCUs. Existing hardware should be checked against the exact NXP datasheet before layout reuse or firmware migration. Typical application directions include legacy automotive modules, industrial controllers, communications equipment, and real-time embedded systems that require the CPU32 architecture and established MC68332 software support. New designs should confirm toolchain availability, external-memory requirements, electrical characteristics, lifecycle status, and any documented end-of-life or shipping-discontinuance notices before committing to a production release. The most important design consideration is lifecycle risk: the verified NXP result explicitly labels this part as End of Life. For new production, engineers should evaluate an NXP-recommended migration family and confirm software, timing, package, pin, and peripheral compatibility rather than assuming that a nominally similar microcontroller is drop-in replaceable. This page consolidates distributor availability, package data, lifecycle information, and replacement guidance without inventing missing electrical specifications.

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MC68332AVEH16 - 32-Bit 16MHz CPU32 MCU 2K RAM TPU QSM | NXP
MC68332AVEH16

MC68332AVEH16 - 32-Bit 16MHz CPU32 MCU 2K RAM TPU QSM | NXP

The NXP MC68332AVEH16 is a 32-bit microcontroller from the M683xx family featuring a CPU32 core running at 16 MHz, packaged in a 132-pin PQFP (24.13 x 24.13 mm). It integrates 2 KB of on-chip RAM and a Time Processing Unit (TPU) along with a Queued Serial Module (QSM), delivering high-performance data manipulation with powerful peripheral subsystems. Operating from a 5 V supply in a ROMless configuration, the device is targeted at industrial control and automotive legacy platforms. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, memory, and peripheral interfaces. The MC68332AVEH16 belongs to the Freescale/NXP M683xx (CPU32) family, which descends from the Motorola 68000 architecture and is part of the broader category of embedded 32-bit microcontrollers used in deterministic real-time control. Within the system hierarchy, it sits between 8/16-bit MCUs (e.g., HC08, HC11) and modern ColdFire/ARM Cortex-M devices, offering a stable software base for legacy designs. Key features include a CPU32 core with 32-bit internal architecture, 16 MHz system clock, 2 KB of on-chip SRAM, ROMless external memory interface, an intelligent Time Processing Unit (TPU) for offloading timing-critical tasks, a Queued Serial Module (QSM) that integrates QSPI and SCI channels, and a 16-channel System Module including a 16-bit timer counter. The 132-pin PQFP package provides ample I/O and is compatible with standard surface-mount manufacturing. Architecturally, the device is built from standard modules interconnected through a common inter-module bus (IMB). Standardization around the IMB allows the same peripheral IP to be reused across the M683xx family, simplifying firmware portability. The ROMless design enables external program memory up to the full 32-bit address space, supporting large embedded applications. Typical applications include industrial automation and process control, automotive body and chassis ECUs (legacy), robotics motor control using the TPU, and avionics or military systems that depend on the mature CPU32 toolchain. The 5 V supply and PQFP package also make it well suited to legacy board designs where drop-in compatibility matters. When designing with this MCU, ensure that the external memory interface timing matches the 16 MHz bus speed and that the TPU microcode is sized for the application's timing channels. Developers should also confirm that modern toolchain support (compiler, debugger, RTOS) is available for the CPU32 architecture before committing to new designs. This page consolidates distributor pricing, drop-in alternatives in the same PQFP-132 footprint, and practical engineering notes that are not always found in the original manufacturer datasheet.

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MC68332GCAG25 - 32-Bit CPU32 MCU 25MHz TPU QSM | NXP
MC68332GCAG25

MC68332GCAG25 - 32-Bit CPU32 MCU 25MHz TPU QSM | NXP

The NXP MC68332GCAG25 is a 32-bit highly-integrated modular microcontroller built on the CPU32 core, running at 25 MHz and housed in a 144-pin LQFP package measuring 20x20 mm. It combines a 32-bit CPU, System Integration Module (SIM), Time Processing Unit (TPU), Queued Serial Module (QSM), and 2KB of on-chip RAM into a single chip connected through a common intermodule bus (IMB). The part is part of the legacy M68300 family and uses a ROMless architecture, requiring external program memory. A microcontroller (MCU) is an integrated circuit that combines a processor core, volatile memory, non-volatile memory, and peripheral functions on a single chip. The M68300 family is a high-performance 32-bit automotive and industrial microcontroller family built on the Freescale/NXP CPU32 architecture, which evolved into the ColdFire v1 family. The TPU co-processor offloads time-critical tasks from the CPU, enabling precise timing in automotive and industrial control applications with minimal CPU overhead. Key features of the MC68332GCAG25 include CPU32 core, 25 MHz clock frequency, 32-bit data bus, 2KB on-chip RAM, dedicated TPU co-processor, QSM with SPI/UART support, and System Integration Module for chip-select and interrupt management. According to the NXP product page, the part carries industrial temperature grade qualification and is supplied in a surface-mount gull-wing LQFP-144 package. The MC68332 architecture is built from standard M68300 modules that interface through a common intermodule bus (IMB), allowing customers to reuse the same peripheral modules across the family. The 25 MHz CPU32 core delivers up to 11 MIPS typical performance at 4.5V, while the standalone TPU can execute complex timing sequences in parallel with the CPU. The device targets industrial automation, motor control, and automotive body/chassis applications. Typical applications for the MC68332GCAG25 include automotive engine control units (ECUs), automotive body controllers, industrial PLCs, motor control inverter platforms, and machine-to-machine (M2M) communication gateways. The TPU-driven I/O makes it well-suited for PWM generation, encoder decoding, and stepper-motor sequencing. The ROMless variant allows customers to use a wide range of external program memories including flash and EPROM. When designing with this MCU, allocate external program memory and external RAM for code execution, since only 2KB internal RAM is provided. The TPU microcode patterns are firmware-configurable through external memory; therefore ROMless MC68332 parts require the customer to supply full TPU microcode. Pin-compatible follow-on parts include the MC68332GVAG25 (different temperature/voltage grade) and MC68332ACAG25 variant. This page synthesizes NXP product page data, distributor pricing (DigiKey, Mouser, LCSC), and the M68300 cross-reference landscape not found in the standalone datasheet title page.

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MC68332GCEH16 - 32-Bit CPU32 MCU 16MHz ROMless 132-PQFP | NXP
MC68332GCEH16

MC68332GCEH16 - 32-Bit CPU32 MCU 16MHz ROMless 132-PQFP | NXP

The NXP MC68332GCEH16 is a 32-bit highly-integrated modular microcontroller in the M683xx (CPU32) family that combines high-performance data manipulation with powerful peripheral subsystems, operating at 16 MHz and packaged in a 132-pin PQFP (24.13 x 24.13 mm). A 32-bit microcontroller (MCU) is a microprocessor core with on-chip RAM, ROM/Flash, timers, and communication peripherals integrated on a single die. The MC68332 specifically uses the CPU32 core, an evolution of the Motorola 68000 family, optimized for embedded control. It sits within the broader hierarchy: CPU32 -> M683xx family -> 32-bit MCU -> microcontroller -> embedded processor -> semiconductor. The part is ROMless, requiring external program memory, which gives designers freedom to select boot code and firmware tailored to the application. Key features include the CPU32 core at 16 MHz, 2 KB of on-chip RAM, a Time Processing Unit (TPU) for high-resolution timing I/O, a Queued Serial Module (QSM) for queued SPI/UART transactions, and a System Integration Module (SIM) that aggregates chip selects, interrupt control, and bus arbitration. The internal intermodule bus (IMB) connects these standard modules, allowing configuration flexibility. Operating temperature spans -40C to +85C for industrial environments. The architecture uses modular standard cells interconnected through the intermodule bus (IMB), a hallmark of the M683xx design philosophy. By decoupling peripherals from the core, NXP enables software reuse across family members. The TPU executes microcoded timing algorithms autonomously, offloading the CPU from event timing workloads such as ignition control, motor commutation, and pulse-width measurement. External bus width and wait-state insertion are SIM-controlled, supporting slow program-memory devices. Typical applications include automotive engine and transmission control, industrial automation controllers, robotic motion controllers, medical instrumentation with deterministic timing needs, and legacy embedded systems originally designed around the Motorola 68000 architecture. The TPU is especially valuable for fuel injection, anti-lock braking, and electronic stability control subsystems. When designing with this part, ensure proper decoupling near the 5V supply pins, allocate an external program-memory device, and respect the ROMless boot configuration. Migration paths should be evaluated against the MC68332 family variants, since the part is mature and approaching end-of-life per the manufacturer product page. This page synthesizes distributor pricing, drop-in NXP M68332 family alternatives, application context, and design notes that extend beyond the manufacturer datasheet to support procurement and engineering decisions.

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MC68332GCEH25 - 32-Bit 25MHz CPU32 MCU | NXP | Automotive
MC68332GCEH25

MC68332GCEH25 - 32-Bit 25MHz CPU32 MCU | NXP | Automotive

The NXP (Freescale) MC68332GCEH25 is a ROMless 32-bit microcontroller IC built on the CPU32 core, operating at 25 MHz from a 5V supply, housed in a 132-pin PQFP (24.13 x 24.13 mm) package. It integrates a system integration module (SIM), a time processing unit (TPU) with 16 intelligent channels, and a queued serial module (QSM), with 2 KB of on-chip SRAM and external memory expansion for program code. A 32-bit microcontroller is a complete computing system on a single chip, combining a processor core, memory, and peripherals. Within the power-management and embedded-control hierarchy, the MC68332 belongs to the Motorola 68000 family lineage (M68300 series), positioned above 8-bit and 16-bit MCUs for applications needing high-performance data manipulation alongside deterministic timing control. Key features include the 25 MHz CPU32 core executing 68020-like instructions, the TPU for time-critical tasks (PWM, engine timing, quadrature decode) offloaded from the CPU, the QSM providing a queued serial peripheral interface (QSPI) and SCI UART, and the intermodule bus (IMB) that ties standard modules together. The ROMless (G suffix) architecture requires external EPROM/FLASH, offering full code flexibility for development and low-volume production. Architecturally, the device is assembled from independent modules communicating over the IMB, a modular approach that let Freescale scale the M683xx family. The 5V automotive-qualified construction and industrial temperature support made it a mainstay in engine control, transmission controllers, and industrial automation through the 1990s and 2000s. Typical applications include automotive engine and transmission control units, industrial motor drives, factory automation controllers, and legacy aerospace/military systems that standardize on the 68332 platform. Design consideration: because this part is ROMless, budget external memory bus timing carefully at 25 MHz; if a slower 16 MHz device is substituted, system clock and TPU configurations must be revalidated. Note that NXP has declared this part End of Life. This page adds value beyond the datasheet by consolidating EOL status, drop-in replacement candidates, distributor sourcing links, and practical migration guidance not found in the manufacturer documentation.

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MC68332GCPV16 - 32-Bit CPU32 MCU, 16MHz, 144-LQFP | NXP
MC68332GCPV16

MC68332GCPV16 - 32-Bit CPU32 MCU, 16MHz, 144-LQFP | NXP

The NXP (formerly Motorola/Freescale) MC68332GCPV16 is a 32-bit modular microcontroller from the M68300 ColdFire CPU32 family, integrating a high-performance CPU32 core with powerful peripheral subsystems and operating at 16 MHz from a 5 V supply in a 144-pin LQFP (20 x 20 mm) package. It combines a 32-bit RISC-style data manipulation engine with 2 KB of integrated RAM, ROMless program memory, and 15 user I/O lines, all interconnected via a common intermodule bus (IMB). What is a 32-bit modular microcontroller? A 32-bit microcontroller (MCU) is a single-chip computer whose data path, registers, and arithmetic logic unit are 32 bits wide, enabling it to handle larger integer values, address wider memory spaces, and process instructions more efficiently than 8-bit or 16-bit MCUs. The "modular" designation refers to the architectural pattern in which standardized functional blocks (timers, serial subsystems, A/D converters) are connected through an internal bus, allowing designers to mix and match peripherals. In the system hierarchy, the MC68332GCPV16 sits as MCU -> 32-bit MCU -> microcontroller -> embedded processor -> semiconductor. It is a legacy industrial/automotive-class component, not a modern Cortex-M device. Key features include the CPU32 core (object-code compatible with the MC68000 and offering additional instructions), an integrated Time Processing Unit (TPU) for sophisticated timing without CPU intervention, a queued serial module (QSM) for SPI and SCI communications, and a System Integration Module (SIM) that consolidates chip-select, interrupt, bus, and clock logic. The operating temperature range is -40 C to +85 C (industrial grade), making it suitable for harsh environments. The MC68332GCPV16 targets embedded control applications that require deterministic real-time behavior. Its ROMless architecture means external program memory (EPROM/Flash) must be connected, allowing designers to use the latest non-volatile memory technology or to perform in-field firmware updates through external bootloader circuits. The 144-LQFP package provides ample I/O for parallel bus expansion. Typical applications include automotive body and powertrain controllers, industrial automation and PLC modules, robotics motor controllers, medical instrumentation, and avionics subsystems. The part has long-term availability in legacy industrial programs but is generally considered mature/legacy, with NXP recommending migration to the MCX A series for new designs. When designing with this part, careful attention must be paid to the 5 V supply decoupling, the external bus timing (since program memory is external), and the TPU programming model, which differs significantly from a simple timer/counter. According to NXP, there is no pin-compatible/software-compatible active replacement; new designs should consider the MCX A series microcontrollers. This page synthesizes distributor pricing, drop-in alternative analysis, and practical design notes not found in the manufacturer datasheet alone.

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MC68332GVAG25 - 25MHz CPU32 MCU 2KRAM TPU QSM | NXP
MC68332GVAG25

MC68332GVAG25 - 25MHz CPU32 MCU 2KRAM TPU QSM | NXP

The NXP MC68332GVAG25 is a 32-bit CPU32 M683xx microcontroller IC running at 25 MHz with ROMless design and 2K of internal RAM, housed in a 144-pin LQFP (20x20 mm) package. It integrates the powerful CPU32 core with a Timer Processing Unit (TPU), Queued Serial Module (QSM), and 16-bit data bus architecture. The 'G' speed-grade designation specifies a 25 MHz system clock while 'V' indicates the 144-LQFP package family, and 'A25' confirms the 25 MHz maximum operating frequency at standard industrial temperature ranges. A microcontroller (MCU) is a single-chip computer containing a processor core, memory, and programmable input/output peripherals integrated on one integrated circuit. The M683xx family belongs to the broader category of 32-bit embedded microcontrollers, descendants of the Motorola 68000 architecture that evolved into the Freescale (now NXP) ColdFire and Power Architecture lines. Within the embedded hierarchy, MCUs sit above digital signal processors in compute capability but below microprocessors in raw performance, optimized for real-time deterministic control tasks where reliability and interrupt latency dominate over throughput. Key features include the dedicated Timer Processing Unit that offloads complex timing operations from the CPU, the Queued Serial Module providing SPI and SCI/UART serial communication, two Kbytes of dual-ported system RAM for shared CPU/peripheral access, and the CPU32 instruction set extending the 68000 with enhanced addressing modes. The intermodule bus (IMB) connects these blocks at high bandwidth, enabling deterministic peripheral-to-CPU data transfers without external glue logic. The MC68332 architecture uses a 32-bit internal architecture with 16-bit external data bus and 24-bit external address bus, supporting up to 16 Mbytes of linear address space. Operating voltage spans 4.5V to 5.5V with 31 I/O ports and JTAG/BDM background-debug interface. The device is widely used in automotive engine control, industrial automation, and avionics applications where the TPU's hardware timing channels simplify PWM generation and input capture tasks. Typical applications include automotive engine management, industrial servo control, robotics motion controllers, and embedded networking equipment. Its TPU excels at generating complex PWM waveforms and decoding quadrature encoder signals without burdening the main CPU. When designing with this part, consider the 5V supply requirement, ensure external memory is correctly mapped into the linear address space, and use the BDM port for non-intrusive firmware development. The ROMless configuration requires external boot memory, typically a parallel EPROM/Flash connected through the IMB. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.

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MC68332GVAG25557 - 32-bit CPU32 MCU 25MHz LQFP-144 | NXP
MC68332GVAG25557

MC68332GVAG25557 - 32-bit CPU32 MCU 25MHz LQFP-144 | NXP

The NXP (Freescale/Motorola) MC68332GVAG25557 is a 32-bit CPU32 modular microcontroller operating at 25 MHz, housed in a 144-terminal LQFP (20x20 mm) square fine-pitch package. This ROMless member of the MC68332 family integrates 2 KB of internal static RAM, a Time Processor Unit (TPU), and a Queued Serial Module (QSM), and runs from a 4.5 V to 5.5 V single supply. A 32-bit microcontroller such as the MC68332 combines a processor core with memory, timers, and serial peripherals on one die, sitting at the top of the microcontroller hierarchy (semiconductor -> integrated circuit -> microcontroller -> 32-bit MCU). The MC68332 family is based on the CPU32 core, an instruction-set derivative of the classic MC68000 16/32-bit architecture, so existing 68000 assembly and C code can be recompiled with minimal changes. Key features include the ROMless program-memory configuration, which requires external FLASH or EPROM connected via the 24-bit address bus and 16-bit external data bus; approximately 31 general-purpose I/O lines; the intelligent TPU coprocessor that offloads complex timing tasks such as PWM, input capture, and step-motor control from the CPU; and the QSM, which provides a queued SCI serial port plus a QSPI interface. The device is fabricated in HCMOS process technology for low power with TTL-compatible I/O. Typical applications include industrial automation controllers, automotive ECU prototyping, motor-control and motion-timing systems leveraging the TPU, thermal sensor data loggers, and legacy test equipment. The external-memory architecture makes it especially suited to designs needing large code images or field-updatable firmware. Design consideration: because the part is ROMless and clocks at 25 MHz, PCB layout must keep external memory traces short and matched, and the 5 V supply requires level-shifting when interfacing with modern 3.3 V peripherals. This page synthesizes distributor sourcing data, drop-in same-family alternatives, and NXP community replacement guidance not consolidated in any single datasheet. Note: this suffix (,557) device is a Rochester Electronics-sourced legacy supply item for the discontinued Freescale MC68332 line; stock is allocated through authorized-legacy channels.

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MC68332GVEH25 - CPU32 25MHz MCU, 2K RAM, TPU, QSM | NXP
MC68332GVEH25

MC68332GVEH25 - CPU32 25MHz MCU, 2K RAM, TPU, QSM | NXP

The NXP MC68332GVEH25 is a 32-bit CPU32 microcontroller from the M68300 ColdFire/M683xx family operating at 25 MHz with 2 KB of on-chip RAM and no internal ROM (ROMless), housed in a 132-pin PQFP (S-PQFP-G132) package. It integrates a powerful CPU32 core with on-chip peripheral subsystems including a Time Processing Unit (TPU), Queued Serial Module (QSM), and a 2 KB SRAM, plus a 24-bit address bus with 16-bit external data bus. The device is designed for high-reliability, low-power HCMOS operation from a 5 V supply. What is a microcontroller? A microcontroller (MCU) is a single-chip computer containing a CPU core, memory (RAM/ROM), and programmable peripherals. The MC68332GVEH25 belongs to the hypernym hierarchy MCU -> microprocessor -> semiconductor. The CPU32 core executes the M68000 instruction set with 32-bit internal registers, while the modular architecture interfaces through an Intermodule Bus (IMB), giving designers flexibility to scale peripherals without changing the CPU. Key features include 32-bit single-core performance at 25 MHz, hardware multiply/divide, dedicated Time Processing Unit for timing-critical I/O, QSM for queued serial communications (SPI and SCI/UART), and ROMless design that lets engineers map external flash to optimize program storage for their use case. The PQFP-132 package provides a 0.635 mm terminal pitch and a 24.13 × 24.13 mm footprint suited for industrial surface-mount assembly. The architecture combines a CPU32 core with analog and digital peripheral subsystems interconnected through the IMB. The Time Processing Unit (TPU) offloads timing functions from the CPU, handling pulse-width modulation, input capture, and stepper-motor control autonomously. This dual capability - control-oriented peripherals plus a 32-bit RISC-style core - makes the MC68332GVEH25 a workhorse for automotive, industrial, and robotic control systems. Typical applications include automotive body and powertrain controllers, industrial automation and PLC systems, robotic motion controllers, and avionics subsystems where the TPU's deterministic timing is critical. The 5 V supply and wide operating range suit vehicle and factory-floor environments. When designing with this part, account for the ROMless architecture: external program storage (typically 16-512 KB of EPROM/flash) must be connected to the external data bus, and wait-state generation may be required for slower memories. Designers must also evaluate the migration path to active MCUs (e.g., NXP's MCX A series) since the MC68332 family is no longer in active production. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.

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