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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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MC68332GVFC25 - 32-Bit CPU32 MCU 25MHz | NXP | Industrial Control
MC68332GVFC25

MC68332GVFC25 - 32-Bit CPU32 MCU 25MHz | NXP | Industrial Control

The NXP Semiconductors MC68332GVFC25 is a 32-bit CPU32 modular microcontroller rated at 25 MHz, ROMless with 2 KB of internal SRAM, integrated Time Processor Unit (TPU) and Queued Serial Module (QSM), housed in a 132-pin square BQFP/PQFP package (24.13 x 24.13 mm) with gull-wing leads for industrial temperature applications. A modular microcontroller is a family of processors assembled from reusable on-chip modules around a common core. The MC68332 family, originally developed by Motorola and later Freescale (now NXP Semiconductors), is a classic example: the CPU32 core is surrounded by independent modules for timing, serial communication, and system integration, all connected through an intermodule bus. This architecture places the device in the broader hierarchy of embedded processors: microcontroller, then 32-bit MCU, then embedded controller within a power-management and control subsystem. Key features include the high-performance CPU32 core executing the M68000 instruction set with additional low-power instructions, a 25 MHz operating frequency for real-time control, 2 KB of fast internal SRAM for critical routines and stacks, and a ROMless memory configuration that requires external program memory - ideal for prototyping and systems needing field-updatable firmware. The most distinctive feature is the Time Processor Unit (TPU): an intelligent, RISC-based co-processor with 16 independent channels that performs timing operations - PWM generation, input capture, pulse-width and period measurement, and stepper-motor control - autonomously of the CPU. The Queued Serial Module (QSM) adds a SCI serial port and a QSPI (Queued Serial Peripheral Interface) for expanded I/O without CPU overhead. Typical applications include industrial automation controllers, automotive engine and transmission management, robotics servo control, and telecommunications equipment, where the TPU offloads time-critical tasks from the main CPU. When designing with the MC68332GVFC25, plan external memory carefully: the ROMless configuration requires external flash or EPROM on the bus, and the 5V-era timing parameters must be validated against the specific clock configuration chosen. This page synthesizes distributor availability data, family drop-in alternatives, and practical design notes not found in the manufacturer datasheet, as of 2026-10-18.

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MC68332TS - 32-Bit Modular Microcontroller, CPU32 Core | NXP
MC68332TS

MC68332TS - 32-Bit Modular Microcontroller, CPU32 Core | NXP

The NXP MC68332TS is a 32-bit modular microcontroller built around the CPU32 processor core and packaged in a 132-pin PQFP surface-mount housing. It combines high-performance 32-bit data manipulation with powerful peripheral subsystems and integrates 2KB of static RAM plus a Time Processing Unit (TPU) and a Queued Serial Module (QSM). The TPU is a dedicated micro-engine that offloads timing-critical events from the CPU32, making the MC68332TS well-suited for actuator control, PWM generation, and engine management in industrial systems. A 32-bit microcontroller (MCU) is a single-chip computer that integrates a CPU core, memory, and programmable peripherals around internal buses. The MC68332 belongs to the M68300 family, which standardized on an Intermodule Bus (IMB) so peripheral modules could be reused across variants. The CPU32 in the MC68332TS is object-code compatible with the MC68020, giving designers access to the existing 68k toolchain while gaining improvements such as tighter loops, faster indexed addressing, and reduced interrupt latency. Internal modules include the System Integration Module (SIM), which handles chip-select logic, clock generation, interrupt prioritization, and bus arbitration. Key features of the MC68332TS include the 16-bit TPU with programmable microcoded timing functions, a two-channel QSM with queued SPI and SCI/UART capability, eight independent chip-select outputs, and a 16-bit Timer Counter. The CPU32 core delivers 4-byte instruction prefetch and a hardware multiply/divide unit, while on-chip SRAM of 2KB allows time-critical code and stacks to run from internal memory for deterministic response. The PQFP-132 package exposes the full external address/data bus for external ROM, SRAM, or Flash expansion. Typical applications include industrial automation controllers, automotive ECU prototypes, motor-control drives, robotics, and ruggedized embedded systems. The TPU makes the MC68332TS particularly attractive where complex PWM, input capture, or stepper-motor sequencing is required without burdening the CPU. System designers often use the MC68332 in systems that demand deterministic real-time behavior with an established 68k software base. When designing with the MC68332TS, place a low-ESR decoupling capacitor within 5 mm of each VDD/VSS pair and use at least four layers to route the IMB-equivalent external address/data bus with controlled impedance. Because the part is now in NRND/EOL status, design teams should plan a migration path to a ColdFire or ARM Cortex-M equivalent early in the design cycle to avoid long-term supply risk. This page synthesizes distributor availability, pin-compatible variants, and practical design notes for the MC68332TS that go beyond the manufacturer datasheet alone. Information here is current as of 2026-10-15 and reflects NXP/Motorola documentation, distributor listings, and NXP community guidance.

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MC68334GCEH20 - 32-Bit CPU32 MCU 20MHz ROMless 132-PQFP
MC68334GCEH20

MC68334GCEH20 - 32-Bit CPU32 MCU 20MHz ROMless 132-PQFP

The NXP MC68334GCEH20 is a 32-bit CPU32 (M683xx family) microcontroller integrating a 68k/ColdFire-compatible RISC processing core with a System Integration Module (SIM) and a Time Processing Unit (TPU). It operates at 20 MHz, executes instructions from external memory (ROMless configuration), provides 1 Kbyte of internal RAM, and is housed in a 132-pin PQFP package measuring 24.13 mm x 24.13 mm. The MC68334GCEH20 is specified across the industrial temperature range and is intended for embedded control applications requiring deterministic real-time I/O. The MC68334 belongs to the M68300 family of microcontrollers, which pioneered the integration of microcontroller peripherals with a 32-bit CPU32 processing core. An MCU (microcontroller unit) is a single-chip computer containing a processor core, on-chip memory, and programmable peripherals; the M68300 family extends this concept by integrating a Time Processing Unit (TPU) - a dedicated microcoded engine optimised for high-speed digital I/O tasks such as PWM, period capture, and stepper motor control. Within the broader hierarchy, MCUs sit below microprocessors in integration level: MCU -> embedded microcontroller -> 32-bit microcontroller -> M68300 family -> semiconductor. Key features of the MC68334GCEH20 include 1 Kbyte of standby RAM, a CPU32 core with 32-bit internal architecture, a System Integration Module providing chip-select and bus arbitration logic, a Time Processing Unit for autonomous I/O timing, and a 20 MHz maximum operating frequency. The 132-pin PQFP package supports surface-mount assembly and provides ample I/O for industrial control applications. Architecturally, the CPU32 core executes the M68000 instruction set with 32-bit internal registers, providing code density and deterministic interrupt response. The TPU executes microcoded routines in parallel with the CPU, offloading time-critical tasks such as crank-angle tracking, PWM generation, and quadrature decoding. External memory interfaces support 8/16-bit ROM, SRAM, and peripheral chips via programmable chip-select outputs. Typical applications for the MC68334GCEH20 include automotive engine management (cam/crank timing), industrial motor control (variable-frequency drives), robotics (multi-axis motion control), process control instrumentation, and aerospace flight control subsystems. The 20 MHz clock and TPU make it particularly suited to real-time control loops where deterministic response is required. When designing with this part, engineers should note that the 132-PQFP package requires multilayer PCB layout care and adequate thermal relief on the GND pins. The ROMless architecture mandates external flash or EPROM for code storage and an external watchdog for unattended operation. This page synthesises distributor pricing, lifecycle status, and drop-in compatible alternatives for the MC68334GCEH20, providing design engineers with practical decision support not found in the manufacturer datasheet alone.

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MC68334GEH16 - 32-Bit CPU32 MCU 16MHz ROMless 132-PQFP | NXP
MC68334GEH16

MC68334GEH16 - 32-Bit CPU32 MCU 16MHz ROMless 132-PQFP | NXP

The NXP MC68334GEH16 is a 32-bit CPU32 M683xx microcontroller built on the Motorola/Freescale 68000 family architecture, delivering 16 MHz CPU clock in a 132-pin PQFP (Plastic Quad Flat Package, 24.13 x 24.13 mm) with ROMless configuration. It integrates a Time Processing Unit (TPU), 1 KB on-chip RAM, a System Integration Module (SIM), a queued serial module, and a 16-bit timer counter for embedded automotive and industrial control designs. A CPU32 microcontroller is a 32-bit embedded processor derived from the Motorola 68000 instruction set, optimized for deterministic real-time control. Within the broader chip taxonomy, it sits as: CPU32 -> M68300 family -> 32-bit microcontroller -> embedded processor -> semiconductor. CPU32 devices were widely deployed in automotive powertrain, chassis electronics, body controllers, and industrial automation before ARM-based MCUs took market share. The ROMless design forces external program memory, providing flexibility for late-stage firmware updates and large code bases. Key features include the on-chip Time Processing Unit (TPU), which offloads complex timing functions (PWM, capture, pulse measurement) from the CPU, plus a System Integration Module that integrates chip-select logic, DRAM refresh, and interrupt control. The 132-pin PQFP exposes address, data, and peripheral buses for external memory and I/O expansion. The CPU32 core uses a 32-bit internal architecture with a 16-bit external data bus (CISC design), a 3-stage instruction pipeline, and 4 GB linear address space. The 16 MHz clock yields roughly 2-4 MIPS performance depending on the instruction mix, sufficient for the 1990s-2000s automotive ECU workloads where it was deployed. Typical applications include automotive engine control units, anti-lock brake systems (ABS), electronic stability control, industrial motion controllers, and SCADA equipment. The ROMless architecture supports large external flash for over-the-air firmware updates. When designing with this device, account for its mature 5V CMOS I/O and the legacy 132-pin PQFP footprint, which requires through-hole-compatible surface-mount pads. Confirm RoHS status per lot since earlier PQFP production runs were non-RoHS.

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MC68340AB16E-FR - 32-Bit CPU32 MPU 16MHz QFP-144 | NXP
MC68340AB16E-FR

MC68340AB16E-FR - 32-Bit CPU32 MPU 16MHz QFP-144 | NXP

The NXP MC68340AB16E-FR is a 32-bit integrated microprocessor from the M683xx family featuring a CPU32 core (an enhanced M68000-compatible processor), dual-channel DMA, timers, serial I/O, and chip-select logic integrated on a single die. Operating at 16 MHz with a 32-bit internal data path and 16-bit external memory bus, it is offered in a 144-pin QFP (QFP-144, 28x28 mm) surface-mount package with the -FR suffix denoting tape-and-reel packaging. A microprocessor (MPU) is an integrated circuit that contains the central processing unit of a computer system, including the instruction decoder, arithmetic logic unit, registers, and control logic. The MC68340 belongs to the broader category of embedded processors -> microprocessors (MPU) -> microcontrollers & processors -> semiconductors. It is designed for embedded systems requiring deterministic real-time performance, on-chip peripheral integration, and legacy 68000 instruction-set compatibility, including industrial control, communication gateways, and point-of-sale terminals. Key features of the MC68340AB16E-FR include a CPU32 core delivering 32-bit CISC instruction set performance from a 16-bit external memory interface, two independent DMA channels, two 16-bit timers, dual serial communication interfaces (SCI), and a 16-bit parallel interface. The part also provides programmable chip-select outputs for glue-less memory and peripheral interfacing, and it operates from a single 5 V supply typical of the 68K family. The QFP-144 (28x28 mm) package supports surface-mount assembly and provides access to all CPU32 address, data, and peripheral signals. Architecturally, the CPU32 core is a 32-bit version of the Motorola 68000 with additional instructions optimized for compiled C code, while the on-chip peripheral block reduces system chip count by integrating DMA, timers, and serial controllers that would otherwise require separate logic. The combination of peripherals offered on the MC68340 makes it a candidate for designers who need more integration than a bare M68000 but do not require a full ColdFire or ARM Cortex-M migration. Typical applications include industrial automation controllers, telecommunications equipment, point-of-sale terminals, and legacy embedded systems migrating from discrete 68000 designs to a more integrated solution. The 16 MHz CPU32 core delivers approximately 4 MIPS of sustained throughput, suitable for protocol handling and machine control. When designing with this device, note that the 68K family is mature and NXP has explicitly stated there is no pin-to-pin drop-in replacement for the MC68340; new designs should evaluate ColdFire or ARM Cortex-M alternatives. Existing MC68340 designs must validate supply availability and lifecycle status with NXP franchised distributors before committing to new production runs. This page synthesizes distributor availability, parametric specifications, package data, and lifecycle commentary from NXP, DigiKey, Mouser, Octopart, and LCSC that are not consolidated on any single manufacturer or distributor page.

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MC68340AB16EB1 - 16MHz CPU32 MPU, DMA, 144-QFP | Freescale
MC68340AB16EB1

MC68340AB16EB1 - 16MHz CPU32 MPU, DMA, 144-QFP | Freescale

The Freescale MC68340AB16EB1 is a 32-bit CPU32 microprocessor IC from the MC68xx family running at 16 MHz (16.78 MHz per Rochester listing), housed in a 144-pin QFP (28x28 mm) surface-mount package. It integrates an enhanced M68000-compatible CPU32 core with on-chip DMA, timers, serial I/O, and other peripheral subsystems, replacing multi-chip designs with a single integrated processor. The device operates from a 5V supply and is qualified for commercial temperature grades. A microprocessor (MPU) is the central processing unit of an embedded system, executing instructions fetched from external memory and orchestrating peripherals. The MC68340 belongs to the broader 68000 family of CISC processors (CPU32 -> M68000 -> 32-bit microprocessor -> embedded processor -> semiconductor IC), an architecture that powered early UNIX workstations, gaming consoles, and millions of embedded industrial controllers throughout the 1990s and 2000s. The integration of DMA alongside the core reduces external bus traffic and improves throughput for data-intensive peripherals. Key features include a 32-bit data bus, integrated two-channel DMA controller, parallel I/O, dual timers, and a 16 MHz system clock that delivers approximately 4 MIPS of integer performance. The 144-QFP package offers generous pin count for address, data, and peripheral signals. According to verified distributor data, the part is supplied via Rochester Electronics as a long-term semiconductor stocking partner for legacy NXP/Freescale components. Typical applications include industrial automation controllers, point-of-sale terminals, networked routers, automotive body electronics, and legacy telecom infrastructure. The MC68340's integrated peripherals made it popular for designs where board space and BOM cost mattered more than raw compute throughput. When designing with this device, verify the 5V supply rail noise budget and ensure the external memory interface timing meets the CPU32 wait-state requirements. For new designs, consider whether a ColdFire or ARM Cortex-M replacement offers lower power consumption while maintaining compatibility through a software abstraction layer. This page synthesizes distributor pricing, lifecycle data, and engineering alternatives not consolidated in the original Freescale datasheet, providing decision-ready context for embedded engineers maintaining legacy 68k platforms.

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MC68340AB25E-FR - 25MHz 32-Bit MPU with DMA | NXP QFP-144
MC68340AB25E-FR

MC68340AB25E-FR - 25MHz 32-Bit MPU with DMA | NXP QFP-144

The NXP (formerly Freescale) MC68340AB25E-FR is a high-performance 32-bit integrated microprocessor with direct memory access (DMA), combining an enhanced M68000-compatible CPU32 core, dual 32-bit DMA channels, timers, serial I/O, and parallel I/O on a single integrated circuit. It operates at 25 MHz and delivers 4.8 MIPS, packaged in a 144-pin QFP surface-mount form factor. An MPU (Microprocessor Unit) is a CPU-centric integrated circuit that requires external program and data memory to operate, distinguishing it from a microcontroller that integrates memory on-chip. The MC68340 belongs to the M68000 (68K) CISC processor family, a long-established architecture used in industrial control, telecom, and aerospace embedded systems where deterministic interrupt handling and rich peripheral integration are valued. Within the broader taxonomy it sits as: MPU -> microprocessor -> processor -> digital IC -> semiconductor. Key features include the CPU32 core (32-bit internal registers, 16-bit external data bus), two independent 32-bit DMA channels capable of memory-to-memory and peripheral transfers, dual serial communications interfaces (SCI), two 16-bit timer modules, an 8-bit parallel I/O port, and a system integration module providing chip-select generation and bus arbitration. The 'AB' speed grade denotes the 25 MHz / 4.8 MIPS performance tier, while 'E' indicates the extended temperature range and 'FR' denotes the tape-and-reel packaging suffix. The architecture pairs a CISC instruction set with simple hardware-friendly peripherals, allowing legacy 68K codebases to be ported with minimal software rework. The dual-channel DMA offloads bulk data movement from the CPU, freeing cycles for application logic. The system integration module generates up to 12 chip-select signals from a single oscillator, eliminating external glue logic in many designs. Typical applications include industrial automation controllers, telecommunications line cards, point-of-sale terminals, embedded networking gateways, and legacy M68000 system upgrades. The wide temperature range and robust peripheral set also suit railway, aerospace, and military embedded systems. When designing with this device, allocate the 16-bit external data bus carefully - the CPU32 has 32-bit internal registers but expects a 16-bit memory interface for cost-sensitive designs. Ensure the system integration module's chip-select timing matches the slowest peripheral, and provide a hardware watchdog or external supervisor for safety-critical applications. This page synthesizes distributor pricing, drop-in alternatives from the same M68340 family, comparison data versus related 68K parts, and practical design notes not assembled in a single datasheet view.

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MC68340AG16VE - 32-Bit CPU32 MPU, 16MHz, 144-LQFP | NXP
MC68340AG16VE

MC68340AG16VE - 32-Bit CPU32 MPU, 16MHz, 144-LQFP | NXP

The NXP MC68340AG16VE is a 32-bit integrated microprocessor (MPU) from the M683XX family operating at 16 MHz, housed in a 144-pin LQFP (20x20 mm) surface-mount package. It integrates an enhanced M68000-compatible CPU32 core, two 32-bit DMA channels, a serial channel, a 16-bit timer, and other peripheral subsystems on a single die. What is an MPU? A microprocessor (MPU) is the central processing unit of an embedded system that fetches, decodes, and executes instructions from external memory; unlike a microcontroller, an MPU typically relies on external RAM, ROM, and peripherals. The MC68340 belongs to the CPU32 architecture (Motorola/Freescale legacy), a CISC processor in the broader ColdFire and 68k taxonomy, which includes the MC68331, MC68332, MC68340, and ColdFire successors. It provides 32-bit internal datapaths while accessing external memory efficiently through its 16-bit data bus interface. Key features include the enhanced M68000-compatible CPU32 core supporting 32-bit operations from a 16-bit external memory system, integrated 32-bit DMA with dual channels, an on-chip serial communication interface (SCI), a 16-bit timer module, and an external bus interface supporting 8/16-bit dynamic and static memory. The device operates from a 3.0V to 3.3V supply, making it compatible with 3.3V CMOS peripherals common in 1990s-era embedded designs. Typical applications include industrial automation controllers, telecom base station control boards, point-of-sale terminals, network routers, medical instrumentation, and military/aerospace control systems. It is also widely used in legacy SCADA controllers, CNC machine interfaces, and printer/copier controllers due to its integrated DMA and timer subsystem. The part is well suited to systems requiring deterministic 32-bit processing with deterministic interrupt latency and tight peripheral integration in a single package. When designing with this device, pay attention to bus interface timing to ensure compatibility with slower external memory. The MC68340's 16 MHz CPU32 core delivers up to approximately 4 MIPS of sustained throughput, which matches the requirements of typical 1990s control tasks but is not suitable for modern high-throughput DSP or video processing. Memory mapping and chip-select configuration are configured at reset via external mode pins. This page synthesizes distributor availability, lifecycle status, drop-in alternatives (same NXP/Freescale 68k family and cross-brand equivalents where pin-compatible), and practical design guidance not found in the original manufacturer datasheet alone.

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MC68340CAB25E - 32-Bit CPU32 MPU 25MHz DMA Timer | NXP/Freescale
MC68340CAB25E

MC68340CAB25E - 32-Bit CPU32 MPU 25MHz DMA Timer | NXP/Freescale

The NXP (formerly Freescale) MC68340CAB25E is a high-performance 32-bit integrated microprocessor with direct memory access (DMA), combining an enhanced M68000-compatible CPU32 core, two independent 32-bit DMA channels, two timer modules, a serial communications interface, and a system integration block on a single die. The device operates at 25 MHz, delivers 32-bit CISC performance from a lower-cost 16-bit memory system, and is housed in a 144-pin Ceramic Quad Flat Pack (CQFP-144 / QFP-144 28x28 mm) package. Background - What is a CPU32 microprocessor? A CPU32 is a 32-bit CISC (Complex Instruction Set Computer) microprocessor from the Freescale/NXP M68000 lineage, the direct architectural successor to the original MC68000. It executes the M68K instruction set in 32-bit form while remaining object-code compatible with older 68000/68010/68020 software. CPU32 parts such as the MC68340 family integrate not only the processor core but also system peripherals (DMA, timers, serial, chip-select logic), reducing the part count for embedded industrial designs. The MC68340 sits inside the broader hierarchy MPU -> microprocessor -> 32-bit embedded controller -> industrial computing subsystem. Key features include the CPU32 core, two 32-bit DMA channels, dual 16-bit general-purpose timers (T1/T2), a serial communication port (SCP), a serial peripheral interface (QSPI in some mask sets), eight chip-select outputs with wait-state logic, a 16-bit data bus mode for memory-cost optimization, and a fully static CMOS design that supports DC-to-25 MHz operation. The bus is multiplexed, and the part supports DRAM refresh via internal controllers. Typical applications are industrial control, telecommunications line cards, factory automation, medical instrumentation, point-of-sale terminals, military/aerospace systems, and legacy embedded designs that require deterministic 68K software compatibility. The 144-CQFP package is well-suited to through-hole or socketed industrial assemblies and is rated over the standard -40C to +85C industrial temperature range. When designing with the MC68340, ensure the external bus is properly terminated, the DRAM controller is initialized before bus cycles begin, and the reset configuration mode pins are pulled to the correct levels during power-up. Designers migrating new designs away from this family should consider ColdFire MC68SECC608 or modern ARM Cortex-M parts - per NXP community guidance, no pin-to-pin drop-in replacement exists. This page synthesizes distributor stock signals, parametric alternatives (none drop-in per NXP), lifecycle/EOL context, and practical design notes that are not consolidated in a single manufacturer document.

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MC68340CAG16E - 32-Bit MPU, 16MHz, DMA, 144-LQFP | NXP Semiconductors
MC68340CAG16E

MC68340CAG16E - 32-Bit MPU, 16MHz, DMA, 144-LQFP | NXP Semiconductors

The NXP (formerly Motorola/Freescale) MC68340CAG16E is a high-performance 32-bit integrated microprocessor with on-chip DMA, combining an enhanced M68000-compatible CPU32 core, a 32-bit two-channel DMA controller, and additional peripheral subsystems on a single die. Housed in a 144-pin LQFP surface-mount package, it operates at 16 MHz from a 5V supply and delivers 32-bit CISC performance while interfacing with lower-cost 16-bit memory systems. An MPU (Microprocessor Unit) is the central processing element of an embedded computing system, distinct from a microcontroller in that it requires external memory and peripheral devices to function. The MC68340CAG16E belongs to the M683xx family of 32-bit processors, descending from the Motorola 68000 architecture lineage. Within the broader taxonomy it sits as: MPU -> 32-bit CISC processor -> M68000 family -> M683xx generation -> integrated processor with DMA. The CPU32 core is the heart of the device, providing object-code compatibility with the M68000 while adding new instructions for efficient compiled-code execution. Key features of the MC68340CAG16E include the CPU32 processor core with 32-bit internal data paths and 16-bit external data bus option, two independent DMA channels capable of handling 32-bit transfers autonomously, an integrated dual serial module (UART/USART), a 16-bit timer module, and a system integration block containing chip-select and wait-state generation logic. The device supports both 8-bit and 16-bit external data port widths for cost-optimized memory interfaces. Architecturally, the MC68340CAG16E separates the CPU32 core from memory and I/O via the standard M68000 bus protocol. Peripherals such as the DMA controller and serial module share bus bandwidth with the core, with arbitration handled by the on-chip bus arbiter. The integrated peripherals significantly reduce external glue logic, enabling compact and reliable designs in industrial and telecommunications applications. Typical applications include industrial process control, telecommunications equipment, point-of-sale terminals, factory automation controllers, and embedded networking devices. The 16 MHz core frequency and 32-bit internal performance are well matched to mid-range control tasks requiring deterministic response, while the integrated DMA offloads repetitive data movement from the CPU. When designing with this part, carefully review the EOL notice from NXP - the device is in End-of-Life status - and plan long-term procurement with authorized distributors or qualified aftermarket suppliers. Validate operating voltage (5V) against your system's tolerance and confirm the 144-LQFP package can be handled by your assembly line. This page synthesizes distributor pricing, drop-in alternative search results, lifecycle observations, and practical design notes not found in a single manufacturer datasheet, helping engineers and buyers make procurement and substitution decisions with confidence.

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MC68340CAG25E - 32-Bit M683xx MPU, 25MHz, DMA, 144-LQFP | NXP
MC68340CAG25E

MC68340CAG25E - 32-Bit M683xx MPU, 25MHz, DMA, 144-LQFP | NXP

The NXP MC68340CAG25E is a 32-bit integrated M683xx microprocessor (MPU) running at 25 MHz, integrating an enhanced M68000-compatible CPU32 core with on-chip DMA, timers, serial modules, and other peripheral subsystems in a single device. It is supplied in a 144-pin LQFP (20 x 20 mm) package. The part operates from a single 5 V supply and combines a 32-bit CISC processor with a 16-bit external memory interface, allowing 32-bit performance at a reduced memory-system cost. Background knowledge: An MPU (microprocessor unit) is the central processing device of an embedded system, distinct from a microcontroller (MCU) by typically lacking on-chip non-volatile program memory. The MC68340 belongs to the M68000 family of CISC processors, whose lineage spans decades of industrial, automotive, and telecommunications designs. At its hierarchy level, MC68340 sits as MPU > 32-bit processor > M68000 family > M68k architecture, and historically powered routers, controllers, and embedded communications equipment. Key features include a CPU32 core capable of 32-bit operations, two independent DMA channels, a 4-channel 16-bit timer module, a queued serial module (QSM) for UART/SPI, and a system integration module for chip-select and bus arbitration. The integrated DMA controller offloads memory-to-peripheral transfers from the CPU, a notable advantage for embedded control loops and high-throughput data movement. Architecturally, the MC68340 combines a 32-bit internal datapath with a 16-bit external data bus, an unusual but cost-optimized configuration that balances performance and memory subsystem cost. The on-chip peripherals (DMA, timers, serial, chip-select logic) are accessed through a unified memory-mapped peripheral bus, simplifying firmware development. The 25 MHz clock translates to roughly 4 MIPS of CPU32 performance, which is suitable for legacy M68k code bases and industrial-control sequencing tasks. Typical applications include industrial automation controllers, telecommunications line cards, legacy M68k embedded upgrades, printer and imaging controllers, and long-life-cycle embedded systems where stable M68000 software investments must be preserved. Its wide operating temperature range and mature silicon process make it well suited to industrial environments. Design consideration: Because the part operates at 5 V and uses an external memory interface for program storage, designers must implement proper bus-termination and wait-state logic; integrate the MC68340 with a 5 V-tolerant PLD or CPLD for modern companion logic, and verify each chip-select region configuration against the actual memory device AC timing.

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MC68340FE16E - 32-bit MPU 16MHz CPU32 DMA Timer | NXP
MC68340FE16E

MC68340FE16E - 32-bit MPU 16MHz CPU32 DMA Timer | NXP

The NXP MC68340FE16E is a 32-bit integrated microprocessor from the M683xx (CPU32) family, delivering a 16 MHz core clock and integrating an enhanced M68000-compatible CPU core with on-chip DMA, timers, and peripheral subsystems. It is housed in a 144-pin CQFP (Ceramic Quad Flat Pack) package measuring 26.77 x 26.77 mm, and is offered in an industrial temperature grade suitable for embedded control applications. A microprocessor (MPU) is a single-chip CPU that fetches, decodes, and executes instructions from external memory. The MC68340 belongs to the category hierarchy MPU -> 32-bit microprocessor -> embedded processor -> integrated circuit. Within that taxonomy it sits inside the broader semiconductor family. The CPU32 core maintains object-code compatibility with the M68000 while adding new addressing modes and instruction extensions for embedded use. Integrating the DMA controller and timers on-die reduces external component count, simplifies board layout, and improves determinism in real-time control loops. Key features of the MC68340FE16E include a 16 MHz maximum CPU clock, two independent DMA channels, dual 16-bit timer modules, a serial communications interface, a 32-bit M68000-compatible CPU32 core, and 16 individually programmable chip-select outputs with wait-state generation. The device supports up to 16 Mbytes of address space through external memory interface and provides a background debug mode for non-intrusive in-circuit development. Architecturally, the MC68340FE16E uses a von Neumann bus model with a 32-bit internal data path and a 24-bit external address bus. The on-chip peripherals operate as bus masters independent of the CPU, allowing DMA and timer activity to proceed while the core executes user code. This partitioned architecture is typical of mid-1990s integrated MPUs and remains in service for legacy industrial equipment, telecom backplanes, and military/aerospace systems where the CPU32 instruction set has a long software base. Typical applications include industrial process control, motor drives, telecommunications line cards, point-of-sale terminals, printer controllers, and avionics subsystems. The on-chip DMA and timers make it especially well-suited to deterministic real-time tasks such as stepper motor sequencing and high-speed serial channel handling. When designing with this device, ensure that the 144-pin CQFP land pattern is correctly tooled; ceramic packages require socketed or soldered mounting with attention to thermal coefficient of expansion. Provide adequate decoupling on each VCC pin and route the external memory bus with matched trace lengths for clean operation above 12 MHz.

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MC68340FE16VE - 32-Bit M683xx CPU32 MPU, 16MHz, 144-CQFP | NXP
MC68340FE16VE

MC68340FE16VE - 32-Bit M683xx CPU32 MPU, 16MHz, 144-CQFP | NXP

The NXP MC68340FE16VE is a high-performance 32-bit integrated microprocessor from the M683xx family, featuring an enhanced M68000-compatible CPU32 core, dual-channel 32-bit DMA, two timer modules, a serial communications interface, and a parallel port, all integrated on a single die. The -FE16VE suffix designates a 16.78 MHz CPU clock, a 3.3 V supply, and a 144-pin ceramic CQFP package (26.77 x 26.77 mm) suited for extended-temperature industrial and legacy embedded systems. An integrated MPU (microprocessor unit) is a CPU-centric device that relies on external memory and peripherals, sitting above microcontrollers in the embedded-computing taxonomy: MPU -> 32-bit processor -> CPU -> integrated circuit. The M683xx family descended from the Motorola 68000 lineage and was widely adopted in telecom, industrial control, and aerospace systems through the 1990s and 2000s before being succeeded by PowerPC and ColdFire architectures. Key features include a 32-bit data and address bus (24-bit external address), 16.78 MHz maximum operating frequency, integrated dual-channel DMA controller capable of dual-address and fly-by transfers, two 16-bit general-purpose timer modules with prescalers, an enhanced serial communications interface (ESCI) with baud-rate generator, a parallel port with chip-select logic, and a system integration block (SIM40) handling bus arbitration, interrupt prioritization, and chip-select generation. The 'FE' temperature grade supports 0C to +70C operation. Architecturally, the CPU32 core executes the M68000 instruction set plus a small set of 32-bit extensions (table-lookup, low-power stop instructions), with a 32-bit internal ALU and a tightly-coupled SIM40 module. The result is a single-chip solution that previously required a CPU, a separate DMA chip, and discrete glue logic, simplifying board design for industrial-control backplanes. Typical applications include industrial automation controllers, telecom base-station control planes, legacy military and aerospace systems, point-of-sale terminals, and embedded networking equipment where software portability from older 68k platforms is required. Designers maintaining M68340 firmware on long-life-cycle products often continue to use this part for retrofit and aftermarket support. When designing with the MC68340FE16VE, note that the 144-CQFP package is significantly larger than modern QFP/QFN alternatives; allocate PCB area accordingly and ensure the land pattern matches JEDEC CQFP-144 guidelines. Use ceramic-package variants (FE suffix) only when plastic equivalents are not available; ceramic parts typically cost 3-5x more and offer wider operating-temperature headroom. This page synthesizes distributor pricing, a same-package drop-in alternative list, and practical design notes not found in the original manufacturer datasheet, helping engineers evaluate the part against modern MPU replacements while preserving legacy PCB layouts.

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MC68340FE25E - 32-Bit MPU with DMA, 25MHz, 144-CQFP | NXP
MC68340FE25E

MC68340FE25E - 32-Bit MPU with DMA, 25MHz, 144-CQFP | NXP

The NXP (formerly Motorola/Freescale) MC68340FE25E is a high-performance 32-bit integrated microprocessor with direct memory access (DMA), combining an enhanced M68000-compatible CPU32 core, two independent 32-bit DMA channels, and a peripheral subsystem on a single integrated circuit, housed in a 144-pin Ceramic Quad Flat Pack (CQFP) package. The CPU32 core delivers 32-bit CISC performance from a more economical 16-bit memory bus, while the integrated peripherals eliminate the need for external glue logic. The "FE25" suffix denotes the 25 MHz maximum operating frequency, and the trailing "E" indicates the extended-temperature grade. A microprocessor (MPU) is a single-chip CPU that fetches, decodes, and executes instructions from external memory and coordinates system peripherals through on-chip or external bus interfaces. Within the broader hierarchy, this device sits at: MPU -> microcontroller-class processor -> embedded computing IC -> semiconductor. The MC68340 specifically belongs to the M68000 (M68K) CISC family, a long-established architecture known for orthogonal instruction sets, robust memory management, and broad use in industrial control, telecommunications, and aerospace systems. Key features include the CPU32 core at 25 MHz (10 MIPS sustained), two 32-bit DMA channels capable of independent memory-to-memory or peripheral-to-memory transfers, a 16-bit data bus with 32-bit internal registers, dual timers, a serial communications interface, and a parallel I/O subsystem. The integrated DRAM controller supports both page-mode and nibble-mode DRAMs, while the chip-select module reduces external decoder logic. The CQFP-144 ceramic package is rated for harsh-environment operation and is compatible with MIL-STD-883 screening flows. The MC68340 architecture fuses a CISC instruction set with RISC-like pipelining, giving it deterministic interrupt latency and a familiar M68K toolchain (GCC, Diab, Green Hills). The DMA engine performs transfers without CPU intervention, freeing the core for real-time control tasks. Compared with later ColdFire parts, the MC68340 retains full M68000 object-code compatibility while adding DMA and a richer peripheral mix. Typical applications include industrial process controllers, telecom baseband control, military and aerospace embedded systems, point-of-sale terminals, and legacy M68K upgrades where software compatibility is mandatory. Designers value the device for deterministic interrupt response and the wide ecosystem of mature development tools. When designing with this device, pay attention to bus arbitration between the CPU and the two DMA channels, and ensure external wait-state logic is sized correctly for slow peripherals. The 144-pin CQFP requires a socket or careful solder reflow with a windowed or hermetic footprint. For new designs, consider the ColdFire MCF5301x family for similar peripheral mix with lower power. This page synthesizes distributor pricing, drop-in M68K alternatives, and application notes not found in the standalone datasheet, helping engineers locate second-source options and plan long-term availability for legacy M68000 systems.

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MC68360AI25VL - 25MHz CPU32+ QUICC MPU | NXP | FQFP-240
MC68360AI25VL

MC68360AI25VL - 25MHz CPU32+ QUICC MPU | NXP | FQFP-240

The NXP MC68360AI25VL is a 25 MHz CPU32+ Quad Integrated Communication Controller (QUICC) microprocessor in the M683xx family, housed in a 240-pin FQFP (32x32 mm) tray package. It integrates a 32-bit CPU32+ core with the Communications Processor Module (CPM), 4 Serial Communication Controllers (SCC), and a 10 Mbps Ethernet interface on-chip, providing a versatile one-chip solution for communications-intensive embedded control. The 'VL' suffix indicates the 25 MHz speed grade with a specific temperature/commercial grade trim. An MPU (Microprocessor Unit) is an integrated circuit that contains a full CPU plus peripheral logic, and historically preceded the modern microcontroller MCU by integrating processing, bus control, memory interface, and I/O on a single die. The MC68360 belongs to the 68k microprocessor family, executing the Motorola 68000 instruction set; related derivatives span from the simple MC68000 to the ColdFire successors. Within a system hierarchy, the device sits at the processor level of an embedded board, above peripherals and below the power and clock support ICs. Key features include 25 MHz CPU clock speed, 32-bit internal data path, integrated CPM with 4 SCC channels for serial protocols (HDLC, UART, transparent, BISYNC), a 10 Mbps Ethernet MAC, DRAM controller, and flexible system integration. The 240-pin FQFP (32x32 mm) footprint supports surface-mount assembly with a thermal pad, and the part is graded for industrial temperature ranges. The MC68360 architecture separates the CPU32+ core from the CPM via dual-port RAM, allowing the CPM to handle serial DMA and protocol processing while the CPU runs the OS and application layer. The 0.57-micron process and CMOS core deliver modest power dissipation while sustaining the throughput required for routing, switching, and remote-terminal equipment that defined late-1990s telecom infrastructure. Typical applications include ISDN terminal adapters, T1/E1 channel banks, industrial routers, SCADA remote terminal units, and legacy communication controllers. The part excels at multi-protocol bridging where multiple SCC channels can run HDLC, UART, or transparent modes concurrently without CPU intervention. When designing with the MC68360AI25VL, ensure the DRAM controller is correctly configured for the chosen memory device, and provide the correct low-level bootloader for the CPU32+ core. Note that this part is currently labeled End of Life by NXP, so design-in should target long-lifecycle industrial systems or use it as a long-term spare on existing production boards. This page synthesizes distributor pricing (DigiKey, Mouser), drop-in speed-grade and temperature-grade alternatives, and practical design guidance for the FQFP-240 footprint that is not consolidated on any single manufacturer product page.

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MC68360AI33L - 33 MHz QUICC 32-Bit MPU | NXP FQFP-240
MC68360AI33L

MC68360AI33L - 33 MHz QUICC 32-Bit MPU | NXP FQFP-240

The NXP MC68360AI33L is a 33 MHz, 32-bit CPU32+ microprocessor core integrated with the QUICC (Quad Integrated Communication Controller) peripheral set in a 240-pin FQFP package. It is part of the M683xx family of microprocessors and combines a 32-bit M68000-derived core with on-chip communications peripherals including four serial communication controllers (SCCs), a serial management controller, and a RISC communications processor module (CPM) for offloading protocol processing from the main CPU. A microprocessor (MPU) is an integrated circuit that contains the central processing unit of a computer system. Within the broader semiconductor hierarchy, an MPU sits above a microcontroller (MCU) in integration complexity - MPUs typically require external memory and peripherals, while MCUs integrate memory and peripherals on-chip. The MC68360 specifically belongs to the communications-controller subcategory of MPUs, optimized for telecom and datacom applications where multiple serial channels must be managed concurrently alongside general-purpose processing. Within that, the QUICC family is a derivative of the M68K architecture, with a 32-bit internal data path and a 32-bit external data bus. Key features of the MC68360AI33L include four independent SCC channels supporting protocols such as HDLC, UART, BISYNC, and transparent modes; a RISC-based CPM that handles low-level protocol processing; an 8K x 8 dual-port RAM shared between the core and CPM; integrated DRAM refresh controller; 24-bit external address bus; and a low-power HCMOS process. The 33 MHz internal clock yields approximately 10 MIPS of integer performance, suitable for router, bridge, and remote-access equipment designs. Architecturally, the device is a heterogeneous dual-processor SoC. The CPU32+ core handles OS and application code, while the CPM (a dedicated RISC engine) drives the SCCs, SMC, and timers. The two processors communicate via shared dual-port RAM and mailbox interrupts, allowing protocol handling to scale independently of the main CPU load. Typical applications include ISDN routers, frame-relay access devices, telecom control boards, industrial serial concentrators, and legacy M68K-based embedded systems. The wide peripheral integration reduces external glue logic for multi-channel serial designs. A key design consideration when using the MC68360AI33L is the timing-sensitive FQFP-240 footprint: a 32x32 mm body with 0.5 mm pitch requires a 4-layer PCB minimum to maintain signal integrity on the external bus. Designers should also verify timing margins against the original QUICC reference manual rather than relying on second-source datasheet extracts. This page synthesizes distributor stock status, lifecycle risk, and drop-in variants from the same MC68360 die family not found in the manufacturer datasheet alone.

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