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MC68HRC908JK3CDW - 8-bit HC08 MCU, 4KB Flash, 20-SOIC | NXP
MC68HRC908JK3CDW

MC68HRC908JK3CDW - 8-bit HC08 MCU, 4KB Flash, 20-SOIC | NXP

The NXP MC68HRC908JK3CDW is a member of the low-cost, high-performance M68HC08 Family of 8-bit microcontroller units (MCUs), delivering 8 MHz CPU speed with 4 KB of on-chip Flash program memory and 128 bytes of RAM in a 20-pin SOIC package. Built on the customer-specified integrated circuit (CSIC) design strategy, it integrates LED drivers, low-voltage detection (LVD), power-on reset (POR), and PWM peripherals with 15 general-purpose I/O pins, targeting cost-sensitive embedded designs. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, RAM, and peripheral interfaces into one package. The HC08 family, a successor to the HC05 family, sits within the broader taxonomy of microcontrollers -> embedded processors -> semiconductor ICs. MC68HRC908JK3CDW operates from a 3.3 V or 5 V supply and uses a CISC (Complex Instruction Set Computer) architecture, providing byte- and bit-manipulation instructions useful for control-oriented applications. Key features include 4 KB of Flash program memory (4K x 8), 128 bytes of on-chip RAM, on-chip LED drive capability, an LVD module for brown-out protection, internal POR, PWM channels, and 15 I/O lines. The HCMOS silicon process enables low-power operation and high noise immunity. The 20-pin SOIC (SO-20) package supports standard surface-mount assembly. The architecture is based on the M68HC08 CPU core, which shares object code compatibility with the earlier HC05 family while adding new addressing modes and stack instructions. Internal buses, registers, and a small instruction pipeline deliver deterministic interrupt response, which simplifies firmware development for motor control and user-interface tasks. Typical applications include low-end appliance controls, simple user-interface boards, LED indicator panels, sensor signal conditioning, and small consumer products. Designers select this part when 4 KB of Flash and 15 I/O are sufficient and when cost, rather than peripherals, drives the bill of materials. A key design consideration is supply voltage: the device is rated for both 3.3 V and 5 V operation, but firmware timing parameters differ between ranges, so consult the datasheet electricals. Also note that the part status is Obsolete, meaning last-time-buy commitments should be confirmed before new design-ins. This page synthesizes distributor pricing, drop-in same-brand and cross-brand alternatives, application guidance, and design notes not found in the manufacturer datasheet alone, helping engineers migrate off the obsolete MC68HRC908JK3CDW with verified substitutes.

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MC68HSC705C8ACFB - 8-Bit 2.1MHz OTP MCU | NXP | 44-QFP
MC68HSC705C8ACFB

MC68HSC705C8ACFB - 8-Bit 2.1MHz OTP MCU | NXP | 44-QFP

The NXP Semiconductors MC68HSC705C8ACFB is an 8-bit HC05 CISC microcontroller with a 2.1 MHz clock, 8 KB OTPROM, and a 44-pin QFP package. The verified product data identifies 3.3 V/5 V operation and a 10 mm x 10 mm gull-wing package for compact embedded-control designs. It belongs to the MC68HC05 family of Motorola-derived 8-bit microcontrollers, combining a compact CPU, on-chip one-time-programmable memory, and integrated I/O resources. An 8-bit microcontroller is a programmable control component built around a central processing unit, memory, and peripheral interfaces. In the broader semiconductor hierarchy, this device is a microcontroller MCU, a member of the embedded-processing category, and a semiconductor used for control rather than high-throughput computing. The HC05 architecture uses a CISC-oriented instruction set and is suited to compact products requiring deterministic control logic, keypad or switch inputs, sensor conditioning, actuator outputs, and simple serial communication. The MC68HSC705C8ACFB provides 8 KB of 8K x 8 OTPROM according to the verified distributor listing, while the technical datasheet describes eight kilobytes of addressable memory and programmable read-only memory. Its 2.1 MHz operating frequency provides the core execution clock, and the stated 3.3 V/5 V supply capability allows use in conventional low-voltage embedded systems. The package is identified as a 44-QFP with a 10 mm x 10 mm body. This part is associated with industrial-temperature marking in a distributor result and is listed under the HC05 microcontroller category. Exact operating-temperature limits, input thresholds, timer specifications, port current ratings, oscillator details, programming method, and absolute maximum ratings are not included in the supplied verified snippets, so those values remain marked as needed rather than being inferred. Confirm them against the manufacturer datasheet before release to production. Typical applications include industrial control panels, appliance controllers, small motor or relay systems, sensor-interface equipment, and legacy HC05-compatible products. The same package and memory architecture are useful when maintaining an existing MC68HC05 design, but software timing, programming requirements, and peripheral behavior must be checked when changing between related C8A variants. For PCB design, preserve the 44-pin QFP land pattern, verify pin functions in the authoritative datasheet, and confirm programming, oscillator, reset, and decoupling requirements before manufacturing. This page combines verified distributor specifications, official or manufacturer-linked datasheet references, and application guidance intended to make legacy MCU sourcing more transparent.

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MC68HSC705J1ACP - 8-Bit 4MHz HC05 1.2KB OTP MCU | Freescale
MC68HSC705J1ACP

MC68HSC705J1ACP - 8-Bit 4MHz HC05 1.2KB OTP MCU | Freescale

The Freescale MC68HSC705J1ACP is an 8-bit HC05-family HCMOS microcontroller built around the 6805 CPU core, featuring 1.2KB of one-time programmable (OTP) program memory, 64 bytes of RAM, and a maximum internal bus clock of 4MHz in a 20-pin PDIP package. Marketed as a low-cost member of the 68HC05/J family, the HSC variant targets applications requiring extended operating-temperature behavior and reliable deterministic I/O for industrial, appliance, and consumer embedded designs. What is an HC05 microcontroller? The Freescale/Motorola HC05 (sometimes written HC-05) is a long-established family of 8-bit microcontrollers based on a 6800-derived 6805 CPU core. HC05 devices typically combine mask-ROM, EPROM, or OTP program memory, on-chip RAM, multiple parallel I/O ports, a timer subsystem, and a SCI (serial communications interface) on a single die. The HSC (High-Speed CMOS) prefix specifically denotes the HCMOS fabrication process that enabled higher clock rates, lower quiescent draw, and better noise immunity versus earlier NMOS HC05 parts. Historically the family sits in the broader taxonomy 8-bit MCU -> microcontroller -> embedded controller -> semiconductor. Key features for the MC68HSC705J1ACP include a 4MHz maximum bus frequency, 1.2KB of OTPROM for field-programmable code storage, an integrated 16-bit multi-function timer with programmable prescaler, a full-duplex SCI for asynchronous serial communication, a fixed bidirectional port A (4 bits) and port B (8 bits), plus an external interrupt pin and a COP (computer operating properly) watchdog for safe operation. The 20-pin PDIP footprint is a legacy through-hole form factor well suited to prototyping, hobby projects, and legacy equipment repair. Architecturally, the device uses the 6805 CPU with a simple two-stage instruction pipeline and supports BCD arithmetic, multiply and 8x8 unsigned multiply instructions. Memory is organized in a single linear address space with the OTPROM mapped at specific addresses and a small user RAM reserved for stack and variables. The OTPROM is programmed via the bootstrap mode, and once locked the part behaves like a mask-ROM part with the same timing characteristics. Typical applications include white-goods and appliance control boards (washing machines, microwave ovens, air conditioners), low-cost remote-control transmitters/receivers, simple sensor-conditioning nodes, instrumentation panels, battery chargers and small appliance user interface controllers, and educational or hobby microcontroller boards where the well-documented HC05 toolchain is preferred. It is also routinely used as a drop-in replacement for the mask-ROM MC6805J1A in legacy designs. Design consideration: the HSC variant has higher quiescent current than the original HC05J1A; engineers should re-evaluate battery-life budgets when migrating between HSC and HC variants in portable applications. The 20-pin PDIP package simplifies hand-soldered rework in legacy equipment but limits board density versus modern 20-pin SOIC MCU options, so it is rarely chosen for new high-density designs. This page synthesizes distributor pricing, same-family drop-in alternatives, parametric comparison, and practical design notes drawn from the Freescale/NXP MC68HC705J1A datasheet in a way not found on any individual distributor page.

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MC68L11F1CFNE3 - 8-Bit HC11 MCU, 1KB RAM, ROMless, 68-PLCC | NXP
MC68L11F1CFNE3

MC68L11F1CFNE3 - 8-Bit HC11 MCU, 1KB RAM, ROMless, 68-PLCC | NXP

The NXP MC68L11F1CFNE3 is an 8-bit HC11-family microcontroller unit (MCU) operating at up to 3 MHz, supplied in a 68-pin PLCC package (24.21 x 24.21 mm). It integrates 1 KB of on-chip SRAM and 512 bytes of on-chip EEPROM, with no internal program ROM (ROMless variant), requiring external memory for code storage via its nonmultiplexed expanded bus. The 'L' prefix indicates a low-voltage variant supporting 3.3 V/5 V dual operation typical for the M68HC11 family. An 8-bit microcontroller (MCU) is a single-chip processor that integrates a CPU, memory, and peripheral I/O on one die. Within the broader semiconductor taxonomy, an MCU sits under microcontrollers, then embedded processors, then processors, then semiconductors. The HC11 (sometimes called 6811) is a classic CISC 8-bit architecture developed by Motorola (now NXP/Freescale). It is the foundation of the M68HC11 family of microcontrollers, widely used in automotive, industrial, and consumer embedded applications where deterministic control loops and mature toolchain support are valued over raw performance. Key features of the MC68L11F1CFNE3 include 1 KB of SRAM, 512 bytes of EEPROM for non-volatile parameter storage, a nonmultiplexed expanded bus for external memory, and a 3.3 V/5 V dual-voltage supply. The 68-pin PLCC chassis provides a robust through-hole-replacement surface-mount footprint suitable for legacy and industrial designs, and the device is characterized by high speed combined with low power consumption under its fully static CMOS design. Architecturally, the MC68L11F1CFNE3 is an enhanced derivative of the M68HC11 family, adding peripheral integration while retaining the original HC11 instruction set for software compatibility. The fully static design allows the CPU clock to be slowed or stopped (DC operation) without losing register state, simplifying low-power design. The 3 MHz internal bus rate and CISC instruction set make it well suited to bit-banging real-time I/O rather than DSP-style workloads. Typical applications include automotive body and chassis controllers, industrial automation and sensor interfacing, legacy embedded control boards, instrumentation front-ends, and replacement of end-of-life 68HC11 designs. The 3.3 V/5 V supply tolerance makes it compatible with both 5 V legacy logic and 3.3 V modern ASICs. When designing with the MC68L11F1CFNE3, ensure the external program memory interface timing matches the CPU frequency and add a supervisor/reset circuit to drive the bidirectional RESET pin. Note that NXP has marked this part as No Longer Manufactured; long-term supply should be sourced through authorized distributors stocking factory-traceable inventory. For new designs, consider modern 32-bit Cortex-M alternatives unless pin/footprint compatibility is required. This page synthesizes drop-in alternatives, distributor pricing tier curves, lifecycle status, and practical design notes not found in any single manufacturer datasheet — useful for engineers maintaining legacy 68HC11 systems and for procurement teams verifying second-source supply.

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MC68LC040FE25A - 32-Bit 25MHz 68040 MPU, 184-CQFP | NXP
MC68LC040FE25A

MC68LC040FE25A - 32-Bit 25MHz 68040 MPU, 184-CQFP | NXP

The NXP MC68LC040FE25A is a 32-bit reduced-pin-count variant of the Motorola/Freescale 68040 microprocessor family, integrating a single 68040 core with on-chip instruction and data caches but without the integrated floating-point unit (FPU), housed in a 184-pin Ceramic Quad Flat Pack (CQFP, 31.3 mm x 31.3 mm). It operates at 25 MHz with a 5 V I/O supply and is fabricated on a mature 0.57 micron CMOS process, addressing cost-sensitive embedded designs that need the 68040 instruction set without paying for the FPU silicon. A microprocessor (MPU) in the 680x0/CISC family is a self-contained CPU die that fetches instructions from external memory and executes them in hardware. The M68k family is the CISC hypernym; the 68040 sits at the top of the line with Harvard-style split instruction/data caches, a pipelined integer core, and MMU support. The 'LC' suffix designates the cache-only, no-FPU variant used in industrial controllers, telecom routers, and legacy VMEbus systems where floating point is rarely required. Key features include a 4 KB instruction cache and 4 KB data cache, a fully associative MMU with 4-entry I-cache and 4-entry D-cache TLBs, 32-bit internal data and address buses, and a 32-bit external data bus multiplexed with address. The die dissipates approximately 1.4 W at full clock with all units active, and the CQFP-184 ceramic package is rated for -40C to +85C industrial operation with MSL 1 (unlimited floor life). The 'FE' package code designates the ceramic CQFP-184 windowed/ceramic variant rather than the plastic PQFP. The 68040 architecture combines a six-stage pipeline with dual-issue load/store, branch prediction, and burst-mode memory support, delivering sustained performance well above the earlier 68030. The 'LC' die is pin-compatible with the full 68040, allowing software-identical footprint designs that can be upgraded by swapping in the MC68040RC / MC68EC040 / full MC68040 family when FPU capability is required. Typical applications include legacy VMEbus single-board computers, industrial control PLCs, telecom line cards, military/aerospace command-and-control systems, and long-lifecycle embedded computing platforms where software portability outweighs raw throughput. The CQFP-184 ceramic package is preferred for avionics and defense programs that require hermetic packaging. When designing, verify that 5.0 V I/O is acceptable to your memory and glue logic - the 68040 does not support 3.3 V interfaces without external transceivers. Provide a 25 MHz fundamental-mode oscillator or crystal input to the CLK pin and ensure the bus-sizing mode pins match the chosen memory width to avoid bus-error traps at boot.

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MC68LC040RC25A - 32-bit 25 MHz M680x0 MPU, 179-PGA | NXP
MC68LC040RC25A

MC68LC040RC25A - 32-bit 25 MHz M680x0 MPU, 179-PGA | NXP

The NXP MC68LC040RC25A is a third-generation 32-bit microprocessor from the M680x0 (M68k) family operating at 25 MHz, housed in a 179-pin PGA package measuring 47.24 x 47.24 mm. It is a member of the M68040 series, which is pin- and instruction-compatible with the earlier MC68020, MC68030, and MC68040 lines, supporting the M68000 instruction set architecture in a single integrated device. What is an MPU? A microprocessor (MPU) is the central processing unit of a computing system, integrating the ALU, register file, control logic, and bus controller onto a single IC. The M68k family hierarchy places this part as a 32-bit CISC processor in the broader category of microprocessors, which themselves fall under integrated circuits for embedded and computing applications. Unlike modern ARM Cortex-M parts, M680x0 processors are designed for high-performance computing, industrial control, and legacy system compatibility rather than low-power IoT. Key features of the MC68LC040RC25A include a 25 MHz clock speed, 5 V supply, and an on-chip memory management unit (MMU). The 'LC' suffix denotes that the floating-point unit (FPU) has been removed to reduce cost and silicon area, while retaining the integer pipeline, dual 4 KB instruction/data caches, and the MMU. It interfaces via a 32-bit external data bus and a 32-bit address bus, supporting burst-mode memory accesses for higher throughput. Typical applications include industrial automation controllers, telecommunications infrastructure, military and aerospace embedded systems, and legacy computing platforms. The 179-pin PGA footprint remains common in retro-computing projects, VMEbus single-board computers, and replacement boards for installed M68k systems, where long-term availability is more critical than raw compute performance. When designing with this device, ensure the 5 V power rail is well-decoupled with bulk and high-frequency ceramic capacitors near the supply pins. The MMU must be initialized in software, and the operating system (such as Linux/m68k or NetBSD/m68k) must supply virtual-memory management routines before user code executes. Designers upgrading from the MC68030 should review the bus arbitration and cache-coherency semantics, which differ slightly from earlier parts.

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MC68LC040RC40A - 32-Bit 40MHz M68LC040 MPU | Motorola/NXP | 179-PGA
MC68LC040RC40A

MC68LC040RC40A - 32-Bit 40MHz M68LC040 MPU | Motorola/NXP | 179-PGA

The Motorola (NXP) MC68LC040RC40A is a third-generation 32-bit M68000-family microprocessor operating at 40 MHz, housed in a 179-pin PGA (47.24 x 47.24 mm) ceramic package. As the LC variant of the 68040 family, it integrates a 32-bit RISC integer core, on-chip instruction and data caches, and is fabricated in HCMOS technology for 5 V single-supply operation. It is the cost-reduced sibling of the MC68040, omitting the memory management unit (MMU) while preserving software compatibility with the full 68040. A microprocessor (MPU) is an integrated circuit that fetches, decodes, and executes instructions from external memory using its own instruction cycle, forming the central processing element of an embedded computer. The M68LC040 sits within the broader taxonomy: MPU -> 32-bit processor -> RISC integer core -> M68000 family -> CISC-style superset of M68000 instruction set. It belongs to the class of high-performance embedded MPUs used in legacy industrial, telecom, and aerospace systems where x86 and ARM Cortex were not yet ubiquitous. The 040 generation added Harvard-style split instruction/data caches and a multiply/accumulate engine for DSP-like workloads. Key features include a 40 MHz external bus clock, an 8 KB instruction cache and 8 KB data cache, a 32-bit internal data path, and a 4 GB linear address reach. The device includes integrated write buffers, a burst-mode memory controller for DRAM, and synchronous/asynchronous bus interface logic. It supports big-endian byte ordering and the full M68000 user instruction set including floating-point emulation traps to software or an external MC68881/MC68882 coprocessor. The MC68LC040's architecture combines a six-stage pipeline with dual instruction decode and a dedicated branch target cache, enabling approximately 20 MIPS sustained throughput at 40 MHz. HCMOS fabrication yields typical power dissipation of approximately 3.5 W at full activity. The LC variant specifically removes the MMU while preserving 4 GB flat addressing, which simplifies firmware design for embedded real-time operating systems that perform their own memory protection. Typical applications include telecom switching fabric controllers, industrial robotics motion controllers, military/aerospace avionics subsystems (where the part remains in active qualification lists), legacy VMEbus single-board computers, and laboratory instrumentation. It is commonly deployed as a drop-in upgrade for MC68EC040, MC68SEC000, and MC68030 designs where software compatibility and 5 V rail operation are mandatory. When designing with this device, ensure the 5 V supply is decoupled with 100 nF ceramic capacitors adjacent to each PGA pin pair, and that the bus clock is sourced from a low-jitter oscillator meeting 40 MHz +/- 0.1% tolerance. Socketed PGA footprints (PGA-179) simplify field replacement and upgrade to MC68040RC40A if MMU functionality is later required. This page synthesizes distributor pricing, drop-in cross-family alternatives, and practical design notes not found in the manufacturer datasheet alone.

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MC68LC060RC50 - 50MHz 32-Bit M680x0 MPU, 206-PGA | Freescale
MC68LC060RC50

MC68LC060RC50 - 50MHz 32-Bit M680x0 MPU, 206-PGA | Freescale

The Freescale (formerly Motorola) MC68LC060RC50 is a 32-bit superscalar microprocessor from the M680x0 family, operating at 50 MHz and packaged in a 206-pin PGA (47.25x47.25 mm). It is the 'LC' (Low-Cost) variant of the MC68060, integrating a 8 KB instruction cache, 8 KB data cache, and an integer/floating-point execution core while omitting the MMU present on the full MC68060. The 'R' package suffix designates the ceramic PGA pin grid array form factor. A microprocessor (MPU) is a single-chip CPU that integrates control, arithmetic, logic, and memory-management units. The 68k lineage (M680x0) is a CISC architecture notable for orthogonal addressing modes, flat 32-bit registers, and a clean programmer's model. Within the broader taxonomy, the MC68LC060 sits at: MPU -> CISC microprocessor -> 32-bit embedded processor -> legacy industrial controller. It belongs to the last generation of mainstream 68k silicon and remains in service in legacy VME boards, avionics, industrial PLCs, and Amiga/Atari accelerator projects. Key specifications include a 50 MHz clock, 3.3 V core supply (the 'RC' speed grade), 32-bit address and data buses, dual 8 KB on-chip caches, a Burst mode memory interface, and a 206-pin PGA footprint. The superscalar dual-issue pipeline can execute up to two instructions per clock, giving an effective throughput of 60-80 MIPS at 50 MHz. The 'LC' suffix specifically indicates that the Memory Management Unit (MMU) has been removed, simplifying software for embedded control applications that run flat memory models. Architecturally, the MC68LC060 uses a Harvard-style split cache with write-back policy, a four-stage integer pipeline, and a dedicated FPU pipeline for 80-bit extended precision. The bus interface supports both asynchronous and burst-mode SRAM/DRAM, with on-chip bus arbitration for multi-processor configurations. Compared to the MC68040, the MC68LC060 delivers roughly 2x integer performance at the same clock thanks to its dual-issue pipeline. Typical applications include VMEbus single-board computers, embedded industrial controllers, legacy telecom switching equipment, military/aerospace retrofit programs, and retro-computing accelerator cards (Amiga 4000, Atari Falcon). Designers choose this MPU when upgrading a 68k-based platform that does not require the MMU, gaining performance without software rework on flat-memory RTOS kernels. When designing with the MC68LC060RC50, note that the 206-pin PGA requires a through-hole socket (e.g., PGA206 machined-pin socket) and substantial PCB real estate. The 3.3 V supply must be clean and decoupled with bulk + ceramic capacitors at each Vcc pin cluster. Designers migrating from MC68EC060 should verify software compatibility, as the LC variant retains the FPU while the EC variant does not. This page consolidates distributor pricing, drop-in MPU alternatives, and practical hardware design notes that go beyond the manufacturer datasheet, helping procurement and embedded engineers evaluate lifecycle risk and second-source options for this long-lifecycle Motorola/Freescale 68k MPU.

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MC68LC060RC75 - 75MHz M68060 MPU w/ MMU, No FPU | Freescale/NXP
MC68LC060RC75

MC68LC060RC75 - 75MHz M68060 MPU w/ MMU, No FPU | Freescale/NXP

The Freescale (NXP) MC68LC060RC75 is a 32-bit M680x0 microprocessor operating at 75 MHz, supplied in a 206-pin CPGA (47.25 x 47.25 mm) package and rated for approximately 5V operation. The 'LC' suffix indicates that the part includes the memory management unit (MMU) and on-chip caches but does not include the integrated floating-point unit (FPU) found on the full MC68060, providing a cost-optimized variant for embedded designs where floating point is handled in software or offloaded to a companion coprocessor. The device is part of the M68060 family that succeeded the MC68040 and introduced superscalar dual-issue out-of-order execution on the classic 68k instruction set. An MPU (microprocessor unit) is a CPU integrated circuit that forms the central processing core of an embedded computing system; the MC68LC060 belongs to the M68000 (68k) family, a CISC architecture historically dominant in early Apple Macintosh, Amiga, Atari ST, and early Sun workstations. In modern taxonomy it sits between a microcontroller (which integrates peripherals) and a microprocessor (which relies on external memory and glue logic), and it is classed as a power-management-adjacent processor IC because its static CMOS design allows clock-throttling for low-power operation. Key features include 75 MHz clock speed, 8 KB instruction cache plus 8 KB data cache, an integrated MMU for virtual-memory operating systems, a burst-mode bus interface, and hardware support for unaligned memory access. The 206-pin ceramic PGA package is the original through-hole form factor used on classic computing motherboards and aftermarket accelerator boards, and it is still sought by retro-computing restorers. Typical applications include legacy 68k system upgrades (Amiga 4000 / 1200 accelerators, Atari Falcon accelerators), industrial controllers requiring deterministic execution, telecom line-card processors, and military/aerospace platforms with long lifecycles where software re-validation cost dominates. The lack of FPU is advantageous in deterministic code paths that must avoid FP state save/restore latency. Forth 68k, AmigaOS, and NetBSD still actively target this silicon, and supply has moved to brokers and franchised distributors as the part is past its primary production window. Engineers planning new designs should verify long-term supply and consider pairing with modern Freescale ColdFire or NXP Layerscape MPUs for green-field projects.

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MC68LC060ZU66 - 32-Bit 66MHz 68060 MPU | NXP Semiconductors
MC68LC060ZU66

MC68LC060ZU66 - 32-Bit 66MHz 68060 MPU | NXP Semiconductors

The NXP (formerly Motorola/Freescale) MC68LC060ZU66 is a 32-bit reduced-pin-count version of the MC68060 microprocessor in the M680x0 family, operating at 66 MHz, fabricated with 2.5 million transistors and housed in a 304-pin TBGA (Thermal Ball Grid Array) package measuring 31x31 mm. The MC68LC060ZU66 integrates a high-performance integer pipeline, dual-issue superscalar execution, branch cache, an integrated FPU (floating-point unit), 8 KB unified instruction/data cache, and a memory management unit. A microprocessor (MPU) is the central processing unit of an embedded computing system that executes instructions, manages data flow, and orchestrates peripheral activity. As an M68000-family part, the MC68LC060ZU66 inherits full backward object-code compatibility with the MC68000, MC68020, MC68030, and MC68040 instruction sets, positioning it within the CISC/RISC-hybrid computing hierarchy that ranges from microcontroller to full application processor. The MC68LC060ZU66 belongs to the 'LC' sub-family, meaning it omits the on-chip MMU present in the full MC68060 while retaining the FPU, making it suited to embedded real-time control workloads where memory protection is implemented externally or not required. Key features of the MC68LC060ZU66 include 66 MHz core frequency, 3.3 V supply operation, branch prediction via a 256-entry branch cache, dual integer execution units, an on-chip FPU with concurrent FPU/integer execution, and 8 KB unified instruction/data cache. The 304-TBGA package provides high-density interconnect for a 32-bit address/data bus plus control and power pins in a 31x31 mm footprint, suitable for industrial-temperature embedded designs. Architecturally, the MC68LC060 employs a deep instruction pipeline with dual-issue superscalar execution of simple integer operations, dramatically increasing throughput versus earlier M68000 parts. The branch cache and integrated FPU make this processor well-suited to numerically intensive embedded applications, while the TBGA package supports high-speed signal integrity at 66 MHz bus frequencies. Typical applications include industrial automation controllers, aerospace/defense avionics, telecommunications switching equipment, high-performance embedded control, legacy VMEbus systems, and motor-control platforms where full software compatibility with the M68000 toolchain is mandatory. The 'LC' variant is favored where a memory management unit is unnecessary or provided by an external companion ASIC. When designing with this device, allocate four PCB layers minimum to route the 304-ball TBGA escape pattern, and follow Motorola application-note AB-14 guidelines for M68000 bus-termination and decoupling to maintain signal integrity at 66 MHz bus speeds. The 3.3 V core supply requires bulk decoupling within 25 mm of the package. This page synthesizes distributor pricing, parametric alternatives, and design guidance not found in the manufacturer datasheet alone, supporting fast component evaluation for engineers maintaining or designing M68000-family systems.

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MC68LC302AF16CT - 16MHz 68K Multiprotocol Processor | NXP | 100-LQFP
MC68LC302AF16CT

MC68LC302AF16CT - 16MHz 68K Multiprotocol Processor | NXP | 100-LQFP

The NXP (formerly Freescale/Motorola) MC68LC302AF16CT is a low-cost, integrated multiprotocol processor (IMP) that pairs a static M68000 8/16-bit core with a flexible RISC-based Communications Processor Module (CPM), operating at 16MHz in a 100-pin LQFP (14x14mm) package. It is the cost-reduced derivative of the well-known MC68302, integrating an on-chip DMA controller, serial communications channels, and DRAM refresh support for networking and telecom equipment designs. An MPU (Microprocessor Unit) is a CPU-centric processor that integrates arithmetic logic, registers, and control logic with optional on-chip peripherals. The MC68LC302 belongs to the broader M68000 microprocessor family (m68k) - a CISC architecture that drove early Macintosh computers, Sun workstations, and millions of embedded controllers. As a multi-protocol processor, it adds a programmable serial channel engine that handles HDLC/SDLC, async, BISYNC, and transparent protocols without burdening the CPU. Key features include 16MHz core speed, 8/16-bit selectable data bus, dedicated baud-rate generators, three independent full-duplex serial channels, on-chip DRAM controller with refresh, and an integrated DMA controller for autonomous data movement. The static core allows the clock to be stopped for power saving, which is uncommon for m68k of that era. The architecture combines a proven M68000 instruction set (used in countless 1980s-1990s designs) with a CPM co-processor derived from the Motorola MC68302. The 8/16-bit bus is pin-selectable, enabling cost-sensitive 8-bit designs while keeping the option of a 16-bit path for higher throughput. 16MHz delivers roughly 2 MIPS of 68000 integer performance. Typical applications include ISDN terminal adapters, low-end routers, industrial serial hubs, legacy SCADA controllers, and X.25/frame-relay bridges. Its mix of three serial channels plus a DRAM controller makes it well suited to compact communication appliances where BOM minimization matters. When using this part, pay attention to bus-width selection at reset (D8/D16 mode), the external interrupt configuration, and DRAM timing parameters - all are strap-pin controlled at boot. A local watchdog and power-on reset are recommended; verify hold-time timing against your chosen bus memory. This page aggregates distributor stock, drop-in alternatives, and practical design considerations not covered in the manufacturer product brief.

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MC68LC302AF16VCT - 16MHz 68K MPU w/ Comm, 100-LQFP | NXP
MC68LC302AF16VCT

MC68LC302AF16VCT - 16MHz 68K MPU w/ Comm, 100-LQFP | NXP

The NXP MC68LC302AF16VCT is an integrated M68000-family microprocessor (MPU) with an on-chip RISC Communications Processor Module (CPM), designed for networking and serial-communications products. The die integrates a 16 MHz MC68000 core, dual DMA channels, a DRAM controller, and a multi-channel CPM (Serial Communications Controller) that drives HDLC/SDLC, UART, and transparent serial channels. It is packaged in a 100-pin LQFP (14x14 mm, tray). An MPU (microprocessor unit) is the central processing element of an embedded system. Unlike a microcontroller, an MPU relies on external memory and peripherals. The 68K (MC68000) architecture is a classic CISC ISA widely used in telecom, industrial control, and aerospace legacy designs. The 68302 family extends this with a closely-coupled CPM that offloads serial and DMA work from the CPU, placing it in the taxonomy: microprocessor -> 68K MPU -> integrated communications processor -> embedded networking IC. Key features include a 16.67 MHz MC68000 core (1 Core, 8/16-bit internal bus), an RISC CPM for serial/DMA, dual DMA channels (2 IDMA), 1152 bytes of dual-port RAM, and on-chip DRAM refresh controller. The serial interface supports three SCC (Serial Communications Controller) ports plus one SCP port. Operating voltage is 5V typical; the device runs from -40C to +85C. Typical applications include legacy industrial routers, ISDN terminal adapters, X.25/frame-relay switches, embedded serial-comm controllers, and telecom glue-logic replacement. The integrated CPM reduces BOM count versus a CPU + external UART/DMA design. Designers should note the 100-LQFP footprint requires thermal attention at high ambient temperatures. Pin-compatible 68302 variants (full, LC, FU) allow memory-size scaling on the same land pattern.

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MC68LC302AF20CT - 20MHz M683xx MPU, 100-LQFP | NXP Semiconductors
MC68LC302AF20CT

MC68LC302AF20CT - 20MHz M683xx MPU, 100-LQFP | NXP Semiconductors

The NXP Semiconductors MC68LC302AF20CT is a low-cost integrated multiprotocol processor (IMP) from the M683xx family, integrating an industry-standard M68000/MC68008 microprocessor core with a flexible RISC communications architecture. It operates at a 20 MHz core clock and is housed in a 100-pin LQFP (14x14) package. The device is described as the low-cost follow-on to the well-known MC68302, designed for cost-sensitive networking and communications designs. An M683xx microprocessor is a System-on-Chip IC that combines a Motorola 68000-family CPU core (8/16-bit bus width architecture with a 32-bit internal instruction set) with a dedicated RISC Communications Processor Module (CPM) for handling serial protocols and DMA. The M683xx family belongs to the broader category of integrated communications processors -> microprocessors (MPU) -> microcontrollers and processors -> semiconductors. The MC68LC302 specifically omits the Ethernet media access controller and certain cost-driven peripherals relative to the full MC68302, enabling lower system cost while retaining the same instruction set and CPM architecture. Key features include the M68000 CPU core at 20 MHz, an integrated RISC CPM for serial-channel handling, DRAM controllers, DMA support, and a 100-LQFP surface-mount package. The part retains Motorola/NXP M68000 binary compatibility, easing migration from older 68K designs to newer communications systems. The 'AF' suffix in the part number denotes the LQFP package and pin type per the legacy Freescale/NXP convention. Typical applications include low-end routers, ISDN terminal adapters, X.25 packet assemblers/disassemblers, protocol bridges, industrial serial servers, and low-cost WAN/LAN access equipment where a compact MPU with integrated communications peripherals reduces BOM. Designers favor the part for established 68K toolchain support and for designs requiring deterministic serial-channel handling in a single chip. When designing with this part, verify the latest NXP product-change notifications before committing to long-term production, because the MC68LC302 line has been moved toward end-of-life status in the NXP portfolio. Ensure the on-board DRAM controller is configured for the specific DRAM speed grade used and provide proper bulk-decoupling near the analog power pins. This page synthesizes distributor pricing, drop-in alternative candidates, and practical design notes not found on the basic manufacturer product page.

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MC68LC302AF20VCT - 20MHz M68K Comm Processor | NXP | 100-LQFP
MC68LC302AF20VCT

MC68LC302AF20VCT - 20MHz M68K Comm Processor | NXP | 100-LQFP

The NXP MC68LC302AF20VCT is a 20 MHz M68000-family integrated multiprotocol processor (IMP) featuring a single 8/16-bit core with 100-pin LQFP (14x14) packaging. Designed as a low-cost derivative of the well-known MC68302, it integrates the MC68000/MC68008 microprocessor core with a flexible multi-channel RISC communications processor (CPM), DRAM controller, DMA channels, and serial peripheral interfaces in a single device. It targets networking and communications equipment requiring deterministic protocol handling without an external coprocessor. An integrated multiprotocol processor is a system-on-chip that combines a general-purpose CPU core with dedicated communications hardware for handling serial protocols such as HDLC, UART, and bisync. By collapsing the CPU, DMA engine, serial channels, and memory controller onto one die, an IMP reduces board area, simplifies PCB routing, and shortens firmware debug cycles for embedded network nodes. The MC68LC302 sits in the M683xx product family within NXP's legacy M68000 lineage, and is positioned between the original MC68302 (full-featured) and lower-end members of the LC (low-cost) family. Key features include a 20 MHz clock speed, three independent full-duplex serial communications controllers supporting HDLC/SDLC, UART, and transparent modes, an on-chip DMA controller with two channels, a DRAM refresh controller, and parallel I/O. The device operates from a 5 V supply and is offered in a 100-pin LQFP (14x14 mm) surface-mount package. Compared to the MC68302, the LC version removes certain advanced features to reduce cost while retaining the same M68000 instruction set for software compatibility. The architecture is built around the industry-standard MC68000 core executing 16-bit instructions with a 24-bit address space, paired with a RISC communications processor that offloads bit-level protocol work. This dual-engine approach allows the CPU to run higher-layer networking stacks while the CPM handles real-time serial framing, error detection, and DMA-driven buffer management. The result is deterministic throughput on multiple serial links without taxing the main CPU. Typical applications include ISDN terminal adapters, industrial routers and bridges, frame-relay access devices, low-end protocol converters, and legacy serial multiplexing equipment. The LC variant is especially common in cost-sensitive designs that need M68K software reuse but do not require the full MC68302 feature set. When designing with this part, ensure that signal-integrity constraints for the 20 MHz bus are met, use proper ground-plane partitioning between the analog serial section and the digital core, and confirm DRAM timing parameters against the chosen memory. Designers migrating from the MC68302 should verify register-level differences in the LC variant before reusing firmware. This page synthesizes distributor availability, drop-in alternatives, and design notes not found in the manufacturer datasheet alone, giving procurement and engineering teams a single source for sourcing decisions.

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MC68LC302AF25CT - 25MHz M683xx MPU, 100-LQFP | NXP Semiconductors
MC68LC302AF25CT

MC68LC302AF25CT - 25MHz M683xx MPU, 100-LQFP | NXP Semiconductors

The NXP MC68LC302AF25CT is a low-cost 25MHz M68000-family microprocessor (MPU) from the M683xx series, integrating an 8/16-bit M68000 core with the multiprotocol communications architecture of the MC68302 in a 100-pin LQFP (14x14 mm) package. It operates from a 5V supply and is targeted at networked embedded designs that need an industry-standard 68k instruction set without the full feature set (and cost) of the original MC68302 IMP. An MPU (microprocessor unit) is the central executing engine of an embedded system - it fetches instructions from memory, decodes them, and drives peripherals through on-chip or external buses. The M68000 (68k) architecture is a 32-bit internal / 16-bit external CISC ISA, widely deployed in legacy networking, telecom, industrial-control, and aerospace systems; the M683xx series integrates serial-communications hardware around a 68k core for protocol offload. The MC68LC302 is the cost-reduced derivative that retains the 68k core and key peripherals while omitting blocks the low-cost market does not need. Key differentiating specifications include a 25MHz internal clock, 1 core / 8-16-bit external data bus, integrated DMA controller, and HCMOS process technology for low power relative to older NMOS 68k parts. The 100-LQFP (14x14 mm) footprint is a JEDEC-standard surface-mount package compatible with standard SMT assembly lines. The part is supplied in trays, is lead-free, and is RoHS-compliant per the manufacturer product page. Typical applications include industrial serial-protocol bridges, legacy telecom control boards, and embedded networking nodes. Because of its 68k instruction set and M68302 peripheral compatibility, it is often used as a drop-in software-compatible MPU for existing MC68302 designs where lower cost or better longevity is required. Engineers should consult the NXP product page for current orderability and last-time-buy windows given the part's mature lifecycle status.

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MC68LC302CAF16CT - 16MHz 68K Multiprotocol MPU | NXP | 100-LQFP
MC68LC302CAF16CT

MC68LC302CAF16CT - 16MHz 68K Multiprotocol MPU | NXP | 100-LQFP

The NXP MC68LC302CAF16CT is a low-cost 1-core, 8/16-bit M68000 microprocessor from the M683xx Integrated Multiprotocol Processor family, running at 16 MHz in a 100-pin LQFP (14x14) package. It operates from a 5V supply, integrates a RISC Communications Processor Module (CPM) with DMA, and provides DRAM control plus serial-communication peripherals for embedded networking designs. An integrated multiprotocol processor (IMP) is a single-chip engine that combines a CPU core, a dedicated RISC communications controller, DMA, and serial-channel hardware. The MC68LC302 sits in the M683xx MPU hierarchy below the original MC68302 and above the MC68EN302; it removes the dedicated HDLC/serial microcode engine present on the MC68302 in favor of software-driven communication handling, trading flexibility for lower die cost while keeping the M68000 programming model and footprint family. Key features of the MC68LC302CAF16CT include a 16 MHz M68000 CPU core, an integrated RISC CPM with DMA controller, on-chip DRAM refresh and control logic, and parallel-port I/O mapped into the standard M683xx bus. The 5V-only operation and 100-LQFP (14x14 mm) plastic package are characteristic of legacy industrial and telecom designs that value deterministic 68k behavior and a broad toolchain ecosystem. RoHS-compliant lead-free packaging supports modern assembly lines, although new designs are guided toward the device's successor parts. From an architectural standpoint, the part is built around the well-known Motorola/Freescale/NXP 68000 instruction set and the M683xx system integration block, allowing code reuse across the MC68302, MC68EN302, and MC68LC302 families. Engineers using this MPU typically rely on the same Green Hills, Cosmic, and Diab toolchains that target the wider ColdFire/68k line, simplifying long-life maintenance for installed products. Typical applications include industrial serial-communication controllers, legacy router and bridge line cards, low-cost ISDN terminal adapters, and factory-floor protocol converters where a 16 MHz 68k core is sufficient. The integrated DMA and CPM make it well suited to multi-channel UART, bisync, and transparent serial pipelines. The wide third-party and open-source 68k software base further extends its usable lifespan in long-life equipment. When designing with this device, allocate sufficient cooling margin because the 100-LQFP at 5V and 16 MHz can dissipate noticeable power in densely populated boards. Also confirm the part's lifecycle status before committing to a new design, as NXP has marked several M683xx variants 'Not For New Designs' and recommends directing new projects toward newer ColdFire derivatives.

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MC68LC302CAF16CT-FR - 16MHz 32-bit M68K MPU | NXP | 100-LQFP
MC68LC302CAF16CT-FR

MC68LC302CAF16CT-FR - 16MHz 32-bit M68K MPU | NXP | 100-LQFP

The NXP MC68LC302CAF16CT-FR is a low-cost 32-bit integrated multiprotocol processor (IMP) from the M683xx family, integrating an M68000 processor core with a RISC communications processor module (CPM) in a 100-pin LQFP (14x14 mm) package. The device operates at 16 MHz and is intended as a streamlined derivative of the well-established MC68302 IMP, targeting cost-sensitive networking and embedded communications designs. A microprocessor (MPU) is an integrated circuit that contains the central processing unit of a computer or embedded system. The M68K (Motorola 68000) architecture is a 32-bit CISC ISA introduced in 1979 and used widely in early Macintosh computers, Sun workstations, and embedded controllers. The MC68LC302 sits within the power management and microcontroller hierarchy as MPU -> 32-bit processor -> communications controller -> multiprotocol processor. Within the broader taxonomy it is classified as an MPU in the Integrated Circuits hierarchy. The 'C' suffix indicates CPM communications capability, and the 'AF' indicates the LQFP package family. Key features of the MC68LC302CAF16CT-FR include a 16 MHz clock, 5V supply operation, 100-LQFP (14x14 mm) surface-mount package, and an integrated RISC CPM that offloads serial communications from the main CPU. The device supports multiple serial protocols through dedicated channels, making it suitable for embedded networking equipment where deterministic serial I/O handling is essential. The LQFP-100 footprint provides manageable PCB escape routing while still exposing the full address and data bus plus CPM peripherals. In terms of architecture, the part combines an industry-standard MC68000 core with a flexible, multi-channel communications engine, offering a closely-coupled processor-plus-protocol-engine solution. This integration reduces component count on legacy telecom, industrial control, and serial-networking designs compared with discrete CPU-plus-UART implementations. Note that the MPN carries a 'Not For New Designs' part status from NXP, which means the device is no longer recommended for new product development but continues to be supported for existing designs. Typical applications include ISDN terminal adapters, frame relay access devices, industrial serial-bus bridges, legacy telecom equipment, and embedded networking controllers. The integrated CPM and 68000 core provide deterministic serial-protocol handling without burdening the host CPU. When designing with this part, ensure a clean 5V power rail with adequate decoupling (0.1uF ceramic + bulk) placed close to the supply pins. Because the device is in 'Not For New Designs' status, prototype qualification should consider long-term availability and seek drop-in equivalents if lifecycle support is required for production runs beyond 2030. This page consolidates distributor pricing, drop-in compatible alternatives, and practical design notes not found in the manufacturer datasheet alone, helping engineers and procurement teams evaluate lifecycle risk and second-source options for legacy communications designs.

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MC68LC302CAF20CT - 20MHz M683xx MPU, 100-LQFP | NXP Semiconductors
MC68LC302CAF20CT

MC68LC302CAF20CT - 20MHz M683xx MPU, 100-LQFP | NXP Semiconductors

The NXP (formerly Motorola/Freescale) MC68LC302CAF20CT is a low-cost integrated multiprotocol processor (IMP) based on the M68000 core, integrating a 20MHz 8/16-bit CPU with the M683xx communications architecture in a 100-pin LQFP (14x14 mm) package. It runs at 20 MHz, supports DRAM controller, serial communications channels, and the RISC Communications Processor Module (CPM) typical of the MC68302 family. The 'LC' variant is the cost-reduced member of the MC68302 family, integrating the same multiprotocol engine as the full MC68302. An MPU (microprocessor unit) is an integrated circuit that contains the CPU function of a computer on a single chip. In the embedded hierarchy, this part sits as a microprocessor IC -> 8/16-bit CPU -> M68000 architecture -> embedded multiprotocol processor. The MC68LC302 belongs to a class of legacy networking-oriented processors that combine a general-purpose processor core with dedicated communications peripherals, allowing designers to build routers, bridges, and protocol converters without a separate communications controller. Key features include a 20 MHz M68000-compatible core with 32-bit internal architecture exposed as 8/16-bit external bus, integrated DMA, three serial communications controllers (SCC), two serial management controllers (SMC), one serial peripheral interface, and a DRAM controller. The 100-LQFP package provides 100 pins at 0.5 mm pitch and a 14x14 mm body suitable for industrial networking and telecom backplane designs. The part is currently labeled End of Life (EOL) by NXP, meaning new designs should not adopt it but the installed base continues to be supported through authorized distributors. Typical applications include multiprotocol serial routers, ISDN terminal adapters, frame relay access devices, X.25 packet assembler/disassemblers, HDLC/SDLC protocol bridges, industrial serial concentrators, and legacy telecom control boards. Its integration of CPU and serial channels simplifies PCB layout in compact networking modules. When designing with this device, note that the EOL lifecycle means allocation and long-term supply are the primary procurement considerations. Confirm firmware compatibility with the MC68302/MC68EN360 family before integrating, as the LC variant omits some peripherals present on the full MC68302. PCB layout should keep the 20 MHz bus traces short and properly terminated to avoid signal integrity issues on the external data bus. This page synthesizes distributor stock data, parametric drop-in alternatives, and practical design notes for engineers maintaining legacy MC68LC302 designs. Specifications cross-referenced from the NXP MC68LC302 product brief and distributor listings as of 2026-10-16.

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MC68LK332ACAG16 - 32-Bit CPU32 MCU 16.78MHz | NXP | Industrial Control
MC68LK332ACAG16

MC68LK332ACAG16 - 32-Bit CPU32 MCU 16.78MHz | NXP | Industrial Control

The NXP (Freescale legacy) MC68LK332ACAG16 is a 32-bit ROMless microcontroller based on the CPU32 core, operating at 16.78 MHz, with 2 KB of on-chip SRAM and a Time Processing Unit (TPU) and Queued Serial Module (QSM), housed in a 144-pin LQFP (20x20 mm) package. A 32-bit microcontroller integrates a CPU, memory and peripheral subsystems on a single die, sitting within the broader microcontroller hierarchy of embedded processors. The MC68332 family was among the first highly-integrated 32-bit MCUs, built from standard modules that interface through a common Intermodule Bus (IMB), a predecessor concept to today's AMBA-style bus fabrics. Key features include the CPU32 core with 32-bit data manipulation capability, a system integration module (SIM) handling clock generation, external bus control and system protection, the TPU providing 16 independent time-function channels for PWM, input capture and timing tasks without CPU load, and the QSM combining a queued serial peripheral interface (QSPI) with a serial communications interface (SCI). Being ROMless, program code executes from external memory over the 16-bit external bus, making it ideal for development and applications that must field-update firmware. The 16.78 MHz operating frequency delivers deterministic real-time performance, and the external bus interface supports a range of SRAM, EPROM and flash devices. The IMB architecture allows modular extension with additional peripheral modules in the M683xx family. Typical applications include industrial automation controllers, automotive body and powertrain systems (the family is AEC-Q100 qualified per distributor data), motor control systems, test instrumentation, and telecom line-card management, where the TPU offloads precise multi-channel timing. Design consideration: because the part is ROMless, budget external memory access cycles into worst-case timing calculations, and verify 5V supply rails since this is a 5V device incompatible with 3.3V-only systems. This page synthesizes distributor pricing, same-family drop-in alternatives, and practical design notes not found in the manufacturer datasheet. Pricing shown is as of 2026-10-18.

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MC68LK332ACEH16 - 32-bit CPU32 MCU, ROMless 132-PQFP | NXP
MC68LK332ACEH16

MC68LK332ACEH16 - 32-bit CPU32 MCU, ROMless 132-PQFP | NXP

The NXP (Freescale) MC68LK332ACEH16 is a 32-bit ROMless microcontroller based on the CPU32 core (M683xx family), operating at 16.78 MHz with 2 KB of on-chip RAM, housed in a 132-pin PQFP (24.13 x 24.13 mm) package. A 32-bit microcontroller is a complete computing system on a chip that integrates a processor core, memory, and peripheral subsystems. In the M683xx hierarchy, the MC68LK332 sits within the broader family of microcontroller units (MCUs) and embedded processors, succeeding the MC68332 architecture built on the industry-standard 68000 processor lineage. Key features include the highly-integrated modular architecture that connects standard modules through a common intermodule bus (IMB). The device incorporates a 32-bit CPU32 core, a System Integration Module (SIM), a Time Processing Unit (TPU) for autonomous timing and PWM tasks, and a Queued Serial Module (QSM) providing both a queued serial peripheral interface and a serial communications interface. Being ROMless, program code resides in external memory, making it ideal for prototyping and code-shadowing applications. Technically, the IMB-based modular design allows independent peripheral modules to share a common bus, enabling deterministic timing. The TPU offloads time-critical I/O tasks such as engine crank angle measurement and PWM generation from the CPU, while the QSM provides queued serial transfers with minimal CPU intervention. Typical applications include automotive engine and transmission control, industrial motor control, and embedded systems requiring rich timing functionality. This part is explicitly designated for automotive-class applications per distributor data. Design consideration: since the device is ROMless, external memory interface timing must be verified at 16.78 MHz bus speeds, and because the part is End-of-Life, new designs should plan a migration path. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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MC68LK332GCAG16 - 32-Bit ColdFire MCU, ROMless, 144-LQFP | NXP
MC68LK332GCAG16

MC68LK332GCAG16 - 32-Bit ColdFire MCU, ROMless, 144-LQFP | NXP

The NXP MC68LK332GCAG16 is a 32-bit ColdFire M68300 family microcontroller (CPU32 core) at 16.78 MHz in a 144-pin LQFP (20x20 mm) package, supplied in tray. It is a ROMless industrial-grade variant of the MC68332, integrating 2 KB of RAM, a Time Processing Unit (TPU), and a Queued Serial Module (QSM) on the common intermodule bus (IMB), and is rated for 5V operation. The M68300 family belongs to the ColdFire / CPU32 lineage of 32-bit microcontrollers, which sit in the hierarchy MCU (microcontroller) -> embedded controller -> 32-bit microprocessor -> semiconductor IC. These parts were designed for high-performance data manipulation with powerful on-chip peripheral subsystems, bridging 8/16-bit legacy designs and modern 32-bit automotive/industrial compute platforms. Key features include a 32-bit CPU32 core with 16.78 MHz system clock, 2 KB on-chip SRAM (organized 2K x 8), 15 user I/O lines, internal oscillator, ROMless program memory (external memory interface required), and an integrated TPU for complex timing without CPU intervention plus a QSM for queued serial communications. The CPU32 instruction set is a restricted subset of the M68000 family, retaining 32-bit registers and addressing while reducing hardware complexity. Typical applications include industrial motion control (using TPU for PWM and angle decoding), automotive body and chassis ECUs (engine timing, anti-lock brake controllers, transmission controllers), serial-communications gateways leveraging the QSM, and legacy M68000 firmware ports. The wide 5V tolerance also makes it suitable for 5V industrial backplanes. When designing with this part, note that the 144-LQFP package exposes the full external memory bus; designers must add external program memory (EPROM/Flash) and decoupling per NXP application notes. The part is now in NXP's End-of-Life portfolio, so long-life production designs should plan for last-time-buy or migrate to a ColdFire V2/V3 successor.

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MC68LK332GCEH16 - 32-bit CPU32 MCU, 16.78MHz, 132-PQFP | NXP
MC68LK332GCEH16

MC68LK332GCEH16 - 32-bit CPU32 MCU, 16.78MHz, 132-PQFP | NXP

The NXP MC68LK332GCEH16 is a 32-bit CPU32 (M683xx family) microcontroller running at 16.78 MHz, integrating 2KB of on-chip RAM, a System Integration Module (SIM), a Time Processing Unit (TPU), and a Queued Serial Module (QSM) on a single die. Per NXP product page, this part is supplied in a 132-pin Bumpered PQFP (24.13 x 24.13 mm) tray package and is designated as ROMless, requiring external program memory. Background: A microcontroller (MCU) is a single-chip computer containing a CPU core, memory, and peripherals. The MC68332 family uses Freescale/NXP's CPU32 core - a 32-bit extension of the M68k architecture that retains full source compatibility with the 68000 instruction set while adding new instructions for embedded control. In the system hierarchy it sits as a microcontroller > 32-bit MCU > automotive/industrial MCU. Key features include the TPU, a dedicated co-processor that offloads complex timing tasks (PWM, pulse measurement, motor control) from the CPU, and the QSM, which provides queued serial communications (SPI and SCI) with DMA-style handshaking. The SIM integrates chip selects, interrupt controllers, and clock generation, drastically reducing external glue logic. The ROMless architecture allows designers to use external flash or EPROM, supporting legacy and custom boot configurations. Technical depth: Standard modules interface through the Intermodule Bus (IMB), a proprietary internal bus that decouples peripherals from the CPU. This architecture was industry-defining for modular embedded design in the 1990s and remains supported by long-lifecycle industrial and automotive customers. The part operates from a 5V supply, and the 16.78 MHz bus rate is derived from an internal oscillator. Typical applications include industrial motor control using TPU channels, automotive body and chassis controllers, robotics servo control, and legacy equipment retrofits. This page synthesizes NXP product information, distributor availability, drop-in alternatives, and design considerations not all found in the original datasheet.

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MC68MH360CAI25L - 25MHz QUICC M683xx MPU 240-FQFP | NXP
MC68MH360CAI25L

MC68MH360CAI25L - 25MHz QUICC M683xx MPU 240-FQFP | NXP

The NXP MC68MH360CAI25L is a CPU32+ microprocessor IC in the M683xx family, integrating one 32-bit core running at 25 MHz inside a 240-pin FQFP (32x32 mm) package. Marketed as a QUad Integrated Communications Controller (QUICC), the part combines a CPU32+ core with two Serial Management Controllers (SMCs), one SPI controller, and the full complement of M683xx peripheral IP for embedded networking. The 'MH' speed-grade marking designates a 25 MHz industrial/temperature-grade device, and the 'L' suffix indicates a low-power CMOS process revision. Background: A microprocessor (MPU) is the central processing unit of an embedded system, executing system software and orchestrating peripherals via on-chip buses. The MC68MH360 belongs to NXP/Freescale's M683xx family, a mature 32-bit architecture built on the CPU32+ core derived from the original Motorola 68000 lineage. Within the broader taxonomy, the M683xx line sits as a mid-performance single-chip communications controller positioned between classic 8/16-bit MCUs and high-end PowerPC application processors; it is commonly classified as MPU > communications controller > RISC/CISC hybrid SoC. Key features include the 25 MHz CPU32+ core, 32-bit address and data paths, hardware multiply/divide support, two SMCs for UART-style communications, one dedicated SPI port, and a wide peripheral set that historically integrated Ethernet (on related QUICC variants), timer modules, and DRAM controllers. The 240-FQFP ceramic/plastic surface-mount package supports the dense pin-out required by this integrated feature set, including external memory bus and communications interfaces. Architecturally, the MC68MH360 combines a Harvard-style core with tightly-coupled peripherals and an external bus interface. The CPU32+ core offers 32-bit registers, supervisor/user modes, and an instruction set optimized for communications-protocol processing, while the on-chip peripherals offload DMA and serial framing tasks so the CPU can focus on routing/control duties. Typical applications include industrial routers and protocol converters, telecom multiplexer/bridge equipment, ISDN terminal adapters, industrial serial backbones, and embedded control nodes requiring multiple serial channels and an SPI master/slave in one chip. Its mature M683xx software ecosystem (68k toolchains, OS-9, VxWorks BSPs) makes it a long-life part for legacy and brownfield systems. Design consideration: the 240-FQFP package requires careful PCB layout with a multi-layer board for clean impedance control on the external memory bus; keep trace lengths matched within the MPU's bus timing budget to avoid setup/hold violations. This page synthesizes distributor pricing, drop-in alternatives within the QUICC family, and practical design notes that go beyond a single manufacturer datasheet excerpt.

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MC68MH360EM33L - 33MHz CPU32+ MPU, 240-FQFP | NXP
MC68MH360EM33L

MC68MH360EM33L - 33MHz CPU32+ MPU, 240-FQFP | NXP

The NXP (formerly Motorola/Freescale) MC68MH360EM33L is a CPU32+ microprocessor IC from the M683xx (QUICC) family featuring a single 32-bit core running at 33 MHz, housed in a 240-pin FQFP (32x32 mm) package with a low-power 'L' suffix designator. It integrates 1 QUICC communications processor module plus 2 SMC, 1 SPI, and on-chip networking peripherals targeting telecom, networking, and embedded control applications. A microprocessor (MPU) is an integrated circuit that contains the arithmetic logic unit (ALU), control unit, register set, and memory interface logic of a computer system on a single silicon die. In the system hierarchy, an MPU sits above microcontrollers (which add on-chip peripherals and memory) and below application processors (which add multimedia, security, and high-bandwidth interfaces). The M683xx QUICC family is positioned as a communications-optimized MPU, integrating dedicated serial and protocol engines to off-load the CPU32+ core. Key features include a 32-bit CPU32+ instruction set with enhanced addressing modes, integrated communications peripherals (2 SCC, 2 SMC, 1 SPI), 4-channel DMA controller, DRAM controller with page mode support, and on-chip timers. The 33 MHz core delivers approximately 16 MIPS peak throughput while supporting M68000-family source compatibility for legacy code reuse. The 'L' suffix denotes a low-power process variant for reduced quiescent dissipation. Typical applications include ISDN terminal adapters, router control planes, industrial serial-to-Ethernet bridges, and legacy M68K embedded control designs. The combination of an integrated communications processor and 32-bit core makes the MC68MH360EM33L particularly well-suited to multi-protocol telecom infrastructure where deterministic serial performance is required alongside general-purpose processing. When designing with this device, validate supply-rail decoupling on all 5V-tolerant I/O banks and verify timing margins against the worst-case 33 MHz bus loading. Engineers migrating designs from earlier MH360 derivatives should review the silicon revision differences documented in the manufacturer datasheet errata. This page synthesizes distributor inventory, parametric comparisons, and drop-in alternative guidance not consolidated in the manufacturer datasheet alone.

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