Mikrocontroller

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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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MC68360AI33L557 - 33MHz QUICC 32-Bit MPU | NXP Semiconductors
MC68360AI33L557

MC68360AI33L557 - 33MHz QUICC 32-Bit MPU | NXP Semiconductors

The NXP (formerly Freescale) MC68360AI33L557 is a 32-bit M683xx family microprocessor that integrates a CPU32+ core running at 33 MHz with on-chip peripheral controllers, housed in a 240-pin FQFP package (32x32 mm). It belongs to the QUICC (Quad Integrated Communication Controller) family and is specified for industrial temperature grade operation. A microprocessor (MPU) is an integrated circuit that contains the arithmetic logic unit, control unit, register file, and memory interface of a computer on a single die. The MC68360 specifically embeds a CPU32+ core (32-bit internal, with 32-bit data and address buses) alongside four serial communication controllers, a system integration module, and a parallel interface. In the broader taxonomy, this part sits as: microprocessor -> processor -> integrated circuit -> semiconductor. It is the successor concept to the older MC68302 with substantially enhanced communication throughput. Key features include a 33 MHz maximum operating frequency, 32-bit address and data buses, an integrated memory controller supporting DRAM, SRAM, and ROM, four independent SCC (Serial Communication Controller) channels with HDLC/SDLC/UART support, an SPI port, an I2C controller, and a 32-bit parallel interface for external peripherals. The 240-FQFP (32x32) gull-wing package supports surface mounting and provides ample I/O for the integrated communication peripherals. Architecturally, the MC68360 uses a Harvard-style internal bus with a unified external bus, and integrates a sophisticated bus arbitration unit. The CPU32+ core adds hardware multiply/divide to the original 68000 instruction set. Internal timers include a periodic interrupt timer, a watchdog timer, and a time-of-day clock. The device targets deterministic, real-time embedded communication where a complete controller plus processor fit on one chip. Typical applications include industrial routers and protocol bridges, telecommunications equipment, ISDN terminal adapters, ISDN modem banks, industrial automation controllers, point-of-sale terminals, and embedded networking devices. The MC68360 excels in any application that needs multiple high-speed serial channels under deterministic CPU control with predictable interrupt latency. Designers should note that the MC68360 requires a 5V supply and an external clock source or crystal. The 240-FQFP package needs careful PCB layout with controlled-impedance traces for the external bus, and the integrated DRAM controller must be configured carefully for the specific memory type and timing. Industrial-grade silicon guarantees operation from -40C to +85C, suitable for telecom and factory environments. This page consolidates distributor pricing, lifecycle pin documentation, and drop-in alternatives that go beyond what is found on the original Freescale/NXP product page, with cross-references focused on the M683xx family footprint.

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MC68360CAI25L - 25MHz QUICC 32-Bit MPU | 240-FQFP | NXP
MC68360CAI25L

MC68360CAI25L - 25MHz QUICC 32-Bit MPU | 240-FQFP | NXP

The NXP MC68360CAI25L is a 25 MHz CPU32+ microprocessor from the M683xx family that integrates a 32-bit processor core with the QUICC (Quad Integrated Communication Controller) peripheral set, packaged in a 240-pin FQFP (32x32). The 'C' suffix denotes the commercial 0C to 70C temperature range, while 'A' indicates the standard (non-ECC) memory configuration and 'I' marks the industrial-grade plastic FQFP package. A QUICC (Quad Integrated Communication Controller) is a category of communications-centric microprocessor that combines a CPU core with multiple serial communication controllers (SCCs), serial management controllers (SMCs), a system integration module (SIM), and a time-slot assigner on a single die. Positioned in the broader system hierarchy as MPU -> microprocessor -> integrated MPU/MCU -> semiconductor device, the QUICC family sits between simple microcontrollers and high-end networking processors, optimized for WAN, LAN, and telecom bridge/router designs. Key features include a 32-bit CPU32+ core with 4 GB address space, 25 MHz system clock, four serial communication controllers (SCCs) supporting HDLC/SDLC, UART, transparent, and Ethernet (10 Mbps) protocols, two serial management controllers (SMCs), a 4-channel DMA controller, and a system integration module containing chip-select logic, interrupt controller, and bus arbitration. According to the manufacturer datasheet, the part operates from a 3.0V to 3.6V supply. Architecturally the MC68360CAI25L pairs the proven 68000-derived CPU32+ core (which executes the M68000 instruction set with additional instructions for improved compiler efficiency) with the dedicated communications engine, enabling simultaneous protocol processing on all four SCCs without CPU intervention. The 0.57 micron CMOS process and 240-pin FQFP package were standard for high-pin-count embedded processors of the late 1990s. Typical applications include ISDN terminal adapters, multi-port serial bridges, industrial routers and protocol converters, frame-relay access devices, low-end WAN access multiplexers, and legacy telecom control boards. The device's ability to run four SCC channels concurrently makes it well suited for aggregating T1/E1 or V.35 links into a single processor. When designing with this part, plan for the 240-pin FQFP land pattern, allocate sufficient PCB area for the 32x32 mm footprint, and ensure proper power-supply decoupling on each Vdd/Vss pin pair. Note that NXP has issued an End-of-Life notice for this part per the product page; long-term designs should evaluate NXP ColdFire successors or cross-reference drop-in equivalents. This page synthesizes distributor pricing, drop-in alternatives, application guidance, and design notes not found in the manufacturer datasheet alone - useful for both sustaining-engineering (legacy board repair) and obsolescence-migration planning.

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MC68360RC25L - QUICC 25MHz CPU32+ MPU, 241-PGA | NXP
MC68360RC25L

MC68360RC25L - QUICC 25MHz CPU32+ MPU, 241-PGA | NXP

The NXP MC68360RC25L is a 25 MHz CPU32+ microprocessor integrated into the QUad Integrated Communication Controller (QUICC) family, packaged in a 241-pin PGA (Ceramic Pin Grid Array, 47.24 mm x 47.24 mm). The device combines a 32-bit CPU32+ core with the communications-oriented peripheral set that defines the QUICC line: a System Integration Module (SIM), four Serial Communication Channels (SCCs), a Serial Management Channel (SMC), and an Inter-Integrated Circuit (I2C) controller, plus a parallel interface and DMA. This integration makes the MC68360RC25L especially suited for embedded networking and telecom control designs where a single chip must manage both protocol processing and host-side control. An MPU (Microprocessor Unit) is the highest-level processing element in an embedded system, sitting above microcontrollers in the compute hierarchy because it integrates a full 32-bit CPU with external-memory bus and rich peripheral integration. The MC68360 family occupies the MPU tier of the Coldfire/M68K ecosystem: MPU -> 32-bit microprocessor -> integrated communications controller. The 'L' suffix indicates the lower 0C to 70C commercial temperature grade, distinguishing it from the 'C' military-grade variants. Key features include the CPU32+ core (an enhancement of the original 68020 instruction set with table lookup and interrupt stacking), four independent SCCs that support HDLC, SDLC, Ethernet, UART, BISYNC, and transparent bit streams, and the SIM60 with chip-select logic, dual-port RAM, and DRAM controller. The device operates from a single 5.0 V supply and delivers sustained throughput on all four SCCs without external protocol assistance, with on-chip DMA channels that move data between peripherals and memory autonomously. The architectural depth of the MC68360 comes from its tightly-coupled peripheral cluster: each SCC has its own physical interface, baud-rate generator, and receive/transmit FIFO, while a Time-Slot Assigner (TSA) time-division-multiplexes up to 32 logical channels on a single SCC, replicating TDM functions historically done with external logic. The result is a chip that can terminate multiple WAN trunks, an Ethernet port, or a multi-channel PCM highway with only the QUICC plus a small amount of PHY glue. Typical applications include multi-port serial routers, ISDN terminal adapters, industrial serial concentrators, frame-relay access devices, and legacy telecom control cards. The four SCCs allow bridging between an HDLC WAN link, an Ethernet LAN port, and two async control channels using only one IC, which lowers system cost and board area relative to gluing separate UARTs to a discrete CPU. When designing with the MC68360RC25L, remember that this part is part of the original Motorola/Freescale/NXP 68K lineage and is now in mature/legacy status. Plan for long-term supply with authorised distributors and consider the available same-package speed grades (RC25L, RC33L) when future-proofing the design. This page synthesises distributor pricing, drop-in same-package alternatives, and practical design notes not found in the bare manufacturer datasheet, giving engineers an at-a-glance comparison set for sourcing decisions.

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MC68360RC33L - 33MHz QUICC MPU, 241-PGA | NXP Semiconductors
MC68360RC33L

MC68360RC33L - 33MHz QUICC MPU, 241-PGA | NXP Semiconductors

The NXP (formerly Motorola/Freescale) MC68360RC33L is a 32-bit QUICC (Quad Integrated Communication Controller) microprocessor from the M683xx ColdFire CPU32+ family, operating at 33 MHz in a 241-pin PGA (Pin Grid Array) package measuring 47.24 mm × 47.24 mm. It integrates a CPU32+ core with four Serial Communication Controllers (SCCs), a Serial Management Controller (SIM), and dedicated communication peripherals, making it a versatile one-chip solution for embedded controller applications. An MPU (Microprocessor Unit) is the central processing core of an embedded system that executes instructions and manages data flow. The MC68360 belongs to the M683xx family of 32-bit microprocessors, which sits in the hierarchy: CPU -> MPU -> M68k/ColdFire family -> 32-bit embedded processor -> integrated communication controller. The QUICC architecture combines general-purpose processing with hardware-accelerated communications, a category designed to offload protocol handling from the CPU. Key features of the MC68360RC33L include four independent SCCs supporting protocols such as Ethernet, HDLC, UART, and transparent modes, plus a Serial Management Controller (SIM) with two Serial Management Channels (SMCs) and one Serial Peripheral Interface (SPI). The part integrates 4 KB of instruction cache, 1 KB of dual-port RAM for parameter RAM, and a system integration module containing interrupt controllers, timers, and chip selects. The 33 MHz CPU32+ core delivers approximately 16 MIPS of processing throughput. From a technical depth perspective, the MC68360 uses a 0.57 µm CMOS process with 32-bit internal and external data paths. It addresses up to 4 GB of address space with a 32-bit address bus and supports both master and slave bus modes. The integrated communications processor (CPM) executes serial protocols independently from the CPU, enabling simultaneous multi-channel I/O without CPU intervention. Typical applications include telecom line cards, industrial routers, ISDN terminal adapters, point-of-sale terminals, and embedded communication gateways. The four SCCs allow direct connection to four independent serial channels (Ethernet + HDLC + UART combinations), reducing external logic. Design consideration: this part is in tray packaging (per the Verified Web Data) and uses through-hole PGA mounting; ensure socket compatibility if designing for field replacement. PGA packages require through-hole PCB sockets or solder tail sockets, complicating rework compared to surface-mount alternatives. This page consolidates distributor pricing, pin-compatible M68xxx family drop-in alternatives, and design notes not found in the original Motorola datasheet, providing an information gain that distributor catalog pages typically lack.

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MC68360VR33L - QUICC SIM 4SCC 33MHz 32-Bit MPU | NXP | BGA-357
MC68360VR33L

MC68360VR33L - QUICC SIM 4SCC 33MHz 32-Bit MPU | NXP | BGA-357

The NXP MC68360VR33L is a 33 MHz, 32-bit CPU32+ microprocessor in the M683xx family that integrates four serial communication controllers (4 SCC), a serial interface module (SIM), and a RISC-style communications processor module (CPM) on a single die, packaged in a 357-ball PBGA (25x25 mm). It serves as a one-chip controller for telecom, networking, and embedded data-communication systems that require multiple serial channels without an external protocol engine. An integrated microprocessor and peripheral combination is a class of system-on-chip device that merges a general-purpose processor core with dedicated communication hardware, allowing real-time protocol handling on-chip. In the power-supply and digital IC hierarchy, the MC68360 sits above discrete UART/HDLC controllers, below multi-core application processors, and sits alongside other members of the Freescale/NXP M683xx/PowerQUICC family historically targeted at router, bridge, and industrial-control designs. Key features of the MC68360VR33L include a 32-bit CPU32+ core with 4 Kbytes of instruction cache, four independently configurable SCC channels supporting UART, HDLC, transparent, BISYNC, and Ethernet protocols, a system integration module (SIM40) with multiple timers, and operation from a single 5 V supply. The CPM offloads DMA, baud-rate generation, and protocol framing from the core, which is critical at 33 MHz when several high-speed serial links run in parallel. Typical applications include multi-port serial communication controllers, ISDN terminal adapters, frame-relay and X.25 routers, industrial serial concentrators, and legacy telecom control cards. The 357-PBGA package provides the high I/O count and thermal headroom required for designs running all four SCCs simultaneously. When designing with this device, ensure the 5 V power rail is decoupled close to each supply pin and respect the 357-ball PBGA land pattern exactly; the BGA is not pin-compatible with any QFP variant of the same family. Designers migrating from the 25 MHz MC68360 should re-time any baud-rate generators against the 33 MHz reference. This page synthesizes distributor pricing, 357-PBGA drop-in alternatives, and practical design notes that supplement the NXP MC68360 reference manual.

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MC68360ZQ25VL - 25MHz QUICC 32-Bit MPU 357-BGA | NXP
MC68360ZQ25VL

MC68360ZQ25VL - 25MHz QUICC 32-Bit MPU 357-BGA | NXP

The NXP MC68360ZQ25VL is a 25 MHz CPU32+ (QUICC) microprocessor from the M683xx family housed in a 357-pin PBGA (25x25) package, integrating a versatile single-chip microprocessor with multiple communication peripherals. Its headline parameters are 25 MHz core clock, 32-bit ColdFire CPU32+ core, and a 357-ball plastic BGA package, with four serial communication controllers (SCC), a serial interface module (SIM), and the QUICC engine for protocol offload. What is a QUICC microcontroller? A QUICC (Quad Integrated Communication Controller) is a category of integrated microprocessor + peripheral combination IC that pairs a CPU core with multiple communication protocol engines, allowing the chip to handle serial protocol framing (HDLC, UART, BISYNC, transparent, Ethernet) without burdening the CPU. The MC68360 sits in the broader hierarchy of MPU > 32-bit microprocessor > ColdFire/CPU32+ family > communication controller IC > semiconductor. QUICC devices are a defining category of Freescale/NXP legacy telecom silicon and remain in use in long-lifecycle industrial equipment, telecom backplanes, and protocol-bridging designs. Key features of the MC68360ZQ25VL include four serial communication controllers, an SPI/I2C-compatible serial interface, a 32-bit CPU32+ core at 25 MHz, eight 16-bit timers, and a flexible system integration unit with chip selects and interrupt controllers. The QUICC CPM coprocessor offloads serial processing, leaving the CPU free for control-plane tasks, while the on-chip memory map supports DRAM, SRAM, and ROM external memories with wait-state configuration. Architecturally, the part combines a 32-bit CPU32+ core (M68000-family ISA) with a separate RISC-based communications processor module (CPM) that contains the SCCs, SMCs, and a serial DMA controller. The two-processor internal structure allows deterministic serial throughput independent of CPU load, a key reason this family persists in protocol-bridging telecom designs. Typical applications include industrial telecom controllers, legacy WAN routers, serial-protocol bridges (HDLC/async), industrial automation backplanes, POS and ATM/frame-relay edge nodes, and any long-lifecycle system originally designed around the QUICC platform. The wide integration of peripherals reduces board area and BOM versus discrete processor+comm-controller designs. When designing with this part, note that it is pinned out as a 357-ball PBGA requiring careful PCB stack-up and controlled-impedance routing for the parallel memory bus, and that several variants in the MC68360 family share the same package but differ in frequency, RAM configuration, or Ethernet presence. Designers should verify the exact suffix (ZQ25VL, VR25VL, CAI25L) against the system clock and peripheral requirements before reusing an existing layout. This page synthesizes distributor pricing, same-family drop-in alternatives, and protocol-controller design notes not found in any single manufacturer datasheet.

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MC68360ZQ33L - 33MHz QUICC 32-Bit Comm Controller | NXP
MC68360ZQ33L

MC68360ZQ33L - 33MHz QUICC 32-Bit Comm Controller | NXP

The NXP Semiconductors MC68360ZQ33L is a 32-bit M683xx QUICC (Quad Integrated Communication Controller) microprocessor running at 33 MHz, integrating a CPU32+ core with four serial communication controllers (SCCs) and a 357-ball Plastic Ball Grid Array (PBGA) package measuring 25x25 mm. The part operates from a 5 V supply and combines a general-purpose 32-bit microprocessor with on-chip multi-channel communications peripherals, making it a one-chip solution for embedded networking and serial I/O. A microprocessor (MPU) is an integrated circuit that contains the full CPU, ALU, register file, and control logic of a processor, executing program instructions fetched from external memory. Within the broader taxonomy, the MC68360ZQ33L is a microcontroller-class IC (CPU32+ core), part of the Freescale/NXP 68K/ColdFire legacy, and is commonly categorized under Microcontrollers or Microprocessors depending on partitioning of memory on-chip versus off-chip. Its strength is integrated serial communications, reducing the need for an external UART or serial controller. Key features of the MC68360ZQ33L include a CPU32+ 32-bit core with 4 SCCs supporting HDLC/SDLC, UART, and transparent modes, an SPI, an I2C controller, a 10/100-capable Ethernet system, and a 33 MHz maximum CPU clock at 5 V. The integrated communications processor module (CPM) offloads serial frame handling from the CPU. The 357-BGA package provides high-density interconnect for the wide parallel bus and many serial channels, while the tray packaging is consistent with low-volume industrial-grade sockets. Architecturally, the MC68360ZQ33L is built on a 0.57 micron HCMOS process with separate instruction/data paths and an internal RISC communications engine that executes serial channel microcode independently of the CPU. The CPM uses dual-port RAM and RISC timers to maintain bit-rate timing for all four SCCs simultaneously, leaving the CPU32+ free for application logic, protocol stacks, and supervisory code. Typical applications include industrial serial routers, telecom multiplexer equipment, factory automation controllers, ISDN terminal adapters, and any embedded system requiring many synchronous/asynchronous serial links. The combination of 32-bit processing throughput and four hardware SCCs is uncommon at this price/board-area. When designing with the MC68360ZQ33L, ensure the 357-BGA PCB footprint has matched-impedance traces for the external memory bus and that ground reference is continuous under the BGA field, since the wide parallel memory bus carries multi-hundred-MHz edges even at 33 MHz core speed. This page synthesizes distributor pricing and stock, drop-in same-package alternatives, and engineering selection notes specific to legacy embedded MPU designs not found in any single manufacturer document.

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MC68376BACAB25 - 32-Bit CPU32 MCU, 25MHz, ROMless, 160-QFP | NXP
MC68376BACAB25

MC68376BACAB25 - 32-Bit CPU32 MCU, 25MHz, ROMless, 160-QFP | NXP

The NXP MC68376BACAB25 is a 32-bit single-core CPU32 microcontroller from the M683xx family, operating at 25 MHz with a ROMless architecture and housed in a 160-pin QFP (28x28 mm) surface-mount package. This device is part of NXP's legacy M683xx embedded controller line, integrating a CPU32 core with on-chip peripherals aimed at automotive and industrial real-time control. What is a CPU32 microcontroller? A CPU32 microcontroller is a member of the 68000-family instruction set architecture, offering 32-bit internal registers and a 16/32-bit instruction encoding. It sits in the hierarchy between 8/16-bit microcontrollers and full 32-bit application processors, delivering deterministic real-time performance with a mature toolchain. The M683xx series adds integrated peripherals (timers, serial, I/O) on the same die, classifying the device as an embedded microcontroller within the broader power-management-and-control semiconductor category. Key features include a 25 MHz CPU32 core with 32-bit internal architecture, ROMless program execution from external memory, integrated peripheral modules in the M683xx family, a wide operating temperature range suitable for industrial environments, and a 160-QFP (28x28 mm) package with abundant I/O for system integration. The ROMless design lets designers program external flash for flexible firmware updates and capacity scaling. Technically, the CPU32 implements the M68000 instruction set with 32-bit registers and enhanced addressing modes, executed through a 3-stage pipeline at 25 MHz. The chip integrates peripheral subsystems such as the System Integration Module (SIM), Time Processing Unit (TPU), queued serial module (QSM), and configurable I/O, allowing developers to consolidate multiple glue-logic devices into a single IC. Typical applications include automotive engine control units, industrial automation controllers, motor drives, robotics, point-of-sale terminals, and legacy embedded systems requiring 68000-family software continuity. Designers migrating from older 68k designs often select this part to preserve firmware investment. When designing with this part, note that the 160-QFP package requires careful PCB layout with thermal vias for moderate dissipation, and external boot ROM or flash must be connected since the device is ROMless. This page synthesizes distributor inventory signals, parametric comparisons against MC68360-family and SC-prefix variants, and practical design notes not found in the manufacturer datasheet alone.

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MC68376BGCAB25 - 32-Bit CPU32 MCU 25MHz ROMless 160-QFP | NXP
MC68376BGCAB25

MC68376BGCAB25 - 32-Bit CPU32 MCU 25MHz ROMless 160-QFP | NXP

The NXP MC68376BGCAB25 is a 32-bit CPU32 (M683xx family) microcontroller IC operating at 25 MHz with ROMless program memory, housed in a 160-pin QFP package measuring 28 mm x 28 mm with 0.65 mm pitch. The part integrates a CPU32 core with on-chip peripheral modules originally designed for automotive and industrial powertrain, body, and chassis applications. A microcontroller (MCU) is an integrated circuit that combines a processor core, program and data memory, and a set of peripherals (timers, communication interfaces, ADC, GPIO) on a single die. The CPU32 core used in the M68376 family is a 32-bit CISC ISA descended from the Motorola 68000 lineage, sitting in the broader hierarchy: CPU32 -> M68k family -> 32-bit embedded microcontroller -> embedded processor -> semiconductor. Legacy 32-bit microcontrollers such as this one remain common in long-lifecycle automotive platforms where firmware stability and mature toolchains outweigh raw performance. Key features include a 25 MHz maximum CPU32 clock, ROMless configuration for external program memory, integrated CAN 2.0B controller, queued serial module (QSM) for SCI/SPI, configurable timer module (CTM) with TPU, 8 Kbytes of internal RAM (per the variant suffix), and a system integration module supporting chip-select generation and DRAM refresh. The 160-QFP package is a plastic quad flat pack with 160 gull-wing leads on 0.65 mm pitch. Typical applications include automotive engine control units (ECU), transmission control modules (TCM), anti-lock braking systems (ABS), body controllers, and industrial motion-control platforms. The integrated CAN interface and TPU make the part particularly suitable for hard-realtime control loops where deterministic interrupt latency matters. When designing with this MCU, verify mask set revision against your firmware - early mask sets of the M68376 had errata in the CTM and TPU. Plan for external program memory interface (e.g., 32 Kbyte x 16 EPROM/Flash) because the ROMless suffix means no internal non-volatile code storage is included.

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MC68376BGVAB25 - 32-bit CPU32 MCU 25MHz ROMless 160-QFP | NXP
MC68376BGVAB25

MC68376BGVAB25 - 32-bit CPU32 MCU 25MHz ROMless 160-QFP | NXP

The NXP MC68376BGVAB25 is a 32-bit CPU32 microcontroller from the M683xx family, operating at 25 MHz with a ROMless configuration housed in a 160-pin QFP (28x28 mm, 0.65 mm pitch) package. It integrates a CPU32 core with 7.5 KB of on-chip RAM, a 16-bit / 18-I/O general-purpose timer, and a queued serial module, targeting embedded automotive and industrial control designs. Background Knowledge: A microcontroller (MCU) is a single-chip computer that integrates a CPU core, memory, and peripherals to control external devices in embedded systems. The MC68376BGVAB25 sits at the high end of the legacy 68k family, occupying the CPU32 core (Motorola's first 32-bit extension of the 68000 instruction set) and serving as the integration point between traditional 683xx peripherals and the more powerful PowerPC ColdFire microcontrollers that succeeded it. Externally, MC68376 / MC68336 MCUs are commonly seen in industrial automation, automotive body controllers, and motor-control subsystems where deterministic 68k-family code reuse is desired. Key features include 25 MHz operation, ROMless configuration (external program memory required), 7.5K x 8 RAM, 18 I/O lines, external oscillator support, and an integrated CAN (CANSAP) and queued serial module. It is qualified to a wide operating temperature range typical of automotive under-hood environments. The part is supplied in a QFP-160 plastic quad flat package with 0.65 mm pitch. Technical depth: The CPU32 core implemented in the MC68376 uses a 32-bit internal data path with a 16-/32-bit external bus and executes the M68000 instruction set with additional 32-bit addressing modes. The 25 MHz CPU clock supports ~3 MIPS sustained throughput, sufficient for real-time control loops in industrial drives and body controllers. Integration includes a system integration module (SIM), a 16-bit time processor unit (TPU), and a queued serial multi-channel communication interface. Typical applications include automotive body controllers, factory automation PLCs, motor drive controllers, and industrial inverter control boards. It is also commonly used in legacy embedded designs that require ROMless external flash for code storage. Design consideration: Because the device is ROMless, designers must connect an external program memory such as a 27-series EPROM or parallel flash. A minimum bus width of 16 bits is recommended to avoid wait-state penalties at 25 MHz. Active part is mature in distribution channels. This page synthesizes current distributor pricing, ROMless pin-compatible drop-in alternatives, and practical design notes not found in a single manufacturer datasheet.

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MC6840CP - Three-Channel Programmable Timer | Motorola
MC6840CP

MC6840CP - Three-Channel Programmable Timer | Motorola

The Motorola MC6840CP is a Programmable Timer Module (PTM) for the M6800 processor family, providing three independent 16-bit binary counters with corresponding control registers and a status register. The verified source data identifies a programmable subsystem component designed to generate variable system time intervals, but it does not specify the target package dimensions, pin count, supply voltage, clock frequency, or operating-temperature grade. A programmable timer module is a peripheral category that generates timed events, measures intervals, counts external events, and coordinates periodic interrupts in a processor-based system. In the M6800 ecosystem, the MC6840 extends the processor with hardware timing functions that would otherwise require software loops, external counters, or additional logic. Its three counters make it useful for several independent timing tasks within one component. The three 16-bit binary counters are the central architectural feature identified by the Motorola datasheet result. Each counter corresponds to a control register, allowing firmware to select operating behavior, while the status register supports observation of timer events. Specific counter modes, clock inputs, interrupt outputs, read/write timing, and maximum operating frequency require confirmation from the manufacturer datasheet because those details are absent from the supplied verified snippets. Typical legacy applications include periodic service routines, elapsed-time measurement, pulse generation, event counting, industrial-control timing, and M6800-family test equipment. In each case, firmware configures the relevant counter, polls or receives a timer indication, and uses the resulting event for control flow or measurement. The hardware timer reduces processor workload, but software must still initialize each control register and interpret status correctly. The key design consideration is verification of interface details. Before schematic capture or PCB layout, engineers should obtain the original manufacturer datasheet and confirm the exact CP package, pin assignments, signal names, voltage ratings, timing limits, and environmental specifications. Search results include an MC6840CP-G listing from Rochester Electronics, but the suffix and source do not establish that MC6840CP and MC6840CP-G are electrically, mechanically, and pin-for-pin interchangeable. This page combines the verified Programmable Timer Module description, three-counter architecture, distributor evidence, and sourcing links with explicit uncertainty markers. It distinguishes verified facts from missing electrical, package, pinout, pricing-tier, and lifecycle data rather than inferring specifications that are not present in the supplied sources.

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MC68711E20CFNE2 - 8-Bit 2MHz 20KB OTP HC11 MCU | NXP | 52-PLCC
MC68711E20CFNE2

MC68711E20CFNE2 - 8-Bit 2MHz 20KB OTP HC11 MCU | NXP | 52-PLCC

The NXP MC68711E20CFNE2 is an 8-bit HC11-series microcontroller with 2 MHz CPU clock, 20 KB of on-chip One-Time-Programmable (OTP) EPROM, and 768 bytes of RAM, housed in a 52-pin PLCC (Plastic Leaded Chip Carrier) package measuring 19.1 x 19.1 mm. The MC68711E20CFNE2 suffix "E20" identifies a 20 KB OTP EPROM memory size, "CFN" denotes the 52-pin PLCC industrial-temperature package, and "E2" indicates the OTP (erasable window-less) memory option versus the E3/E4 UV-erasable versions. What is a microcontroller (MCU)? A microcontroller is a single-chip computer that integrates a CPU, memory (program + data), and peripheral interfaces on one piece of silicon. The HC11 (High-performance Complementary Metal-Oxide Semiconductor 68HC11) family belongs to the CISC (Complex Instruction Set Computer) microcontroller hierarchy: MCU -> 8-bit MCU -> HC11 family -> M68HC11 E-series -> industrial/automotive embedded controllers. CISC MCUs offer rich instruction sets, multiple addressing modes, and bit-manipulation features favored in legacy automotive, industrial-control, and instrumentation designs. Key features include an M68HC11 CPU core with 16-bit internal addressing, an 8-channel 8-bit ADC, asynchronous serial communications interface (SCI), serial peripheral interface (SPI), 16-bit timer/counter, pulse accumulator, real-time interrupt, computer-operating-properly (COP) watchdog, and up to 38 general-purpose I/O lines. The OTP EPROM allows one-time factory or field programming using an EPROM programmer socket, while the 768-byte on-chip RAM supports variable data storage for stack, registers, and scratchpad operations. The MC68711E20CFNE2 uses a fully static CMOS design allowing clock frequencies down to DC, with low-voltage (3 V) variants available within the E-series family. The 52-pin PLCC package supports both surface-mount assembly and programming-socket insertion for development and prototyping. Operating temperature spans the industrial range of -40 °C to +85 °C, making it suitable for automotive under-hood, factory automation, and harsh-environment embedded applications. Typical applications include automotive engine control units (ECUs), antilock braking systems (ABS), industrial process controllers, instrumentation, security-system controllers, and legacy embedded-control replacements where pin-compatible HC11 footprint compatibility is required. Designers choose the MC68711E20CFNE2 when a mature, well-documented 8-bit core with on-chip EPROM and rich peripherals is preferable to migrating code to a newer architecture. When designing with this device, ensure the OTP programming algorithm matches the manufacturer's specification - incorrect Vpp ramp timing or address sequence can permanently damage the part. Allow at least 100 ms power-on-reset settling time, and use the COP watchdog to detect firmware lockup conditions in safety-critical applications. This page synthesizes distributor inventory, cross-reference alternatives (MC68711E20CFNE3/E4), and design considerations not consolidated on any single manufacturer or distributor page.

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MC68711E20CFNE3 - 8-Bit HC11 MCU, 20KB OTP, 52-PLCC | NXP
MC68711E20CFNE3

MC68711E20CFNE3 - 8-Bit HC11 MCU, 20KB OTP, 52-PLCC | NXP

The NXP MC68711E20CFNE3 is an 8-bit HC11-family microcontroller featuring 20 KB of on-chip One-Time Programmable (OTP) EPROM, 768 bytes of RAM, and 512 bytes of EEPROM, housed in a 52-pin PLCC (Plastic Leaded Chip Carrier) package measuring 19.1 x 19.1 mm. The device integrates an M68HC11 CPU core operating up to 3 MHz and supports a 4.5 V to 5.5 V supply range, making it suitable for industrial and embedded control designs. Per the verified NXP product page, this part has reached End of Life status, so designers should evaluate remaining stock and last-time-buy opportunities for production continuity. What is an 8-bit microcontroller? An 8-bit MCU is a microprocessor with an 8-bit data bus width that integrates CPU, memory (ROM/RAM/EPROM/EEPROM), and peripherals on a single silicon die. The HC11 (High-performance CMOS 11) family from Motorola/Freescale/NXP extends the classic M68HC11 architecture with a fully static design, high-density CMOS process, and a rich peripheral set including timers, serial interfaces, and analog subsystems. In the broader taxonomy, the MC68711E20CFNE3 sits within microcontroller -> 8-bit MCU -> HC11 family -> OTP-programmable E-series sub-family, ultimately under the umbrella of embedded semiconductor devices. Key features include 20 KB OTP EPROM for code storage, 768 bytes RAM for data, 512 bytes EEPROM for non-volatile parameter storage, an 8-channel 8-bit ADC, and 38 digital I/O lines supporting interrupts and wake-up functions. The fully static design allows operation at clock speeds from DC to 3 MHz, supporting low-power sleep modes that are critical for battery-backed industrial installations. Architecturally, the E-series uses a CISC instruction set with multiple addressing modes optimized for compiler efficiency and compact code density. The integrated peripherals include a 16-bit free-running timer, an asynchronous serial communications interface (SCI), a synchronous serial peripheral interface (SPI), and a pulse-width modulation subsystem. The internal 512-byte EEPROM provides byte-erasable non-volatile storage ideal for configuration data and runtime calibration. Typical applications include industrial motor control, automotive body electronics, security and access control systems, point-of-sale terminals, and legacy embedded controllers where continued 68HC11 software compatibility is required. Designers familiar with M68HC11 assembly and C toolchains can port existing firmware with minimal effort. When designing with this port, note the End of Life status: prototype and maintenance builds should be sourced from authorized distributors holding remaining inventory, or migration to an active HC11 or S08 successor should be evaluated before new designs enter production. This page synthesizes distributor pricing, drop-in OTP-programmable 68HC11E alternatives, and practical design notes drawn from the NXP datasheet and reference documentation, providing information beyond what the manufacturer datasheet alone delivers.

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MC68711E20MFNE2 - 8-Bit HC11 MCU 20KB OTP 768B RAM | NXP
MC68711E20MFNE2

MC68711E20MFNE2 - 8-Bit HC11 MCU 20KB OTP 768B RAM | NXP

The NXP MC68711E20MFNE2 is a member of the M68HC11E family of 8-bit microcontrollers featuring a 4 MHz M68HC11 CPU core, 20 KB of one-time programmable (OTP) EPROM program memory, 768 bytes of on-chip RAM, and 38 digital I/O lines. It is housed in a 52-pin PLCC (J-Lead) package measuring 19.1 mm x 19.1 mm and is supplied in tube packaging for through-hole-style surface mounting. The 68HC11 family is a classic M68HC11 architecture microcontroller family. An 8-bit MCU (microcontroller unit) integrates a CPU, program memory (ROM/EPROM/OTP), data RAM, and on-chip peripherals onto a single silicon die. Within the broader embedded taxonomy, 8-bit MCUs sit below 16-bit and 32-bit MCUs in computational throughput, but offer deterministic behavior, low cost, and easy programmability that make them ideal for cost-sensitive, latency-predictable control applications ranging from appliances and HVAC to industrial automation and automotive subsystems. The HC11 was one of the most widely adopted 8-bit cores of the 1990s and remains in long-lifecycle products and legacy maintenance designs. Key features of the MC68711E20MFNE2 include its 4 MHz maximum bus frequency, integrated oscillator support, the M68HC11 instruction set with extensive addressing modes, and on-chip peripheral functions such as timers, an 8-bit ADC (analog-to-digital converter), and serial interfaces (SCI/SPI). The 20 KB OTP memory supports customer-programmable code development for low-to-medium volume production, while the 768-byte RAM provides data working space suitable for small control loops and stack operations. The 52-PLCC package provides robust J-lead contacts for robust socketing and field replacement. Architecturally, the E-series variants share the same CPU, instruction set, and peripheral set, differing primarily in memory type and size. The 'E20' suffix designates 20 KB of EPROM/OTP, while 'MFN' indicates the plastic-leaded chip carrier package and the E2 temperature/operating variant. This part uses CMOS technology with a fully static design that allows operation over a wide voltage range and clock-speed-down to DC. Typical applications include industrial control systems, automotive body and chassis electronics, HVAC controls, security systems, and consumer appliances where the proven HC11 ecosystem and existing codebase provide a low-risk migration path. The OTP memory variant specifically suits medium-volume production where mask-ROM tooling costs are not justified. When designing with this part, designers must consider that it is flagged as 'No Longer Manufactured' by the manufacturer, so lifecycle planning should include secure long-term inventory or migration to the actively-produced M68HC11 mask-ROM or EEPROM siblings, or to a modern ColdFire/S08 successor. This page synthesizes distributor pricing, lifecycle status, drop-in-compatible alternatives from the 68HC11E family, and practical design notes not found in the manufacturer datasheet alone.

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MC68882EI25AR - 25MHz 68882 FPU Co-Processor | 68-PLCC
MC68882EI25AR

MC68882EI25AR - 25MHz 68882 FPU Co-Processor | 68-PLCC

The NXP MC68882EI25AR is a 25 MHz floating-point unit (FPU) co-processor in the Motorola M68000 family, packaged in a 68-pin PLCC (Plastic Leaded Chip Carrier) measuring 24.21 x 24.21 mm. It functions as a dedicated math co-processor that pairs with an M68000-series CPU (e.g., MC68020, MC68030, MC68040) to offload IEEE 754 single- and double-precision floating-point arithmetic, dramatically accelerating numerical workloads versus software emulation on the host CPU. The part is specified for a 5 V nominal supply (4.75 V to 5.25 V operating range) and a commercial 0C to +70C temperature grade. An FPU co-processor is a specialized processor that works in lockstep with a host CPU to execute floating-point instructions in hardware rather than emulating them in software. Within the M68000 ecosystem hierarchy, the MC68882 sits beside the host CPU as an M-class co-processor (companion chip), falling under the broader categories of math co-processor -> co-processor -> specialized IC -> microprocessor peripheral. By handling transcendental functions (sine, cosine, log, exp), IEEE 754 arithmetic, and packed BCD, the 68882 delivered workstation-class numeric performance to 68k-based systems such as the Amiga, Atari, early Macintosh, and various industrial/embedded controllers. Key features include hardware IEEE 754 single and double precision, eight 80-bit floating-point registers organized as a stack with renaming, fully concurrent execution with the host CPU through the M68000 coprocessor interface, and support for the complete M68000 family F-line instruction set including FMOV, FADD, FMUL, FDIV, FSIN, FCOS, FLOG and FEXP. The 25 MHz suffix (-25) corresponds to a 25 MHz system-clock operation. The PLCC-68 surface-mount package retains the traditional J-lead footprint for easy socket replacement on legacy boards. The 68882 architecture consists of an instruction-decoder/prefetch unit, an FPU execution datapath, an 80-bit register file, and a bus interface that communicates with the host CPU through the M68000 coprocessor protocol. Unlike modern integrated FPUs, the 68882 occupies a separate socket and is invisible to software once configured - the host CPU decodes F-line opcodes and dispatches them to the co-processor transparently. Internal pipeline overlap allows the host and FPU to run concurrently, hiding latency. Typical applications include legacy M68020/M68030 workstation upgrades (Amiga 3000/4000, Atari TT/Falcon, early Mac II/Quadra via PDS cards), industrial-control retrofit boards requiring floating-point acceleration, vintage computer restoration projects, and educational/emulation environments studying 68k architecture. Because the part is now in the obsolete/EOL category, it is most often sourced for maintenance of installed bases rather than new design. A key design consideration when working with this part is that the 68882 must be clocked at the same frequency as, or in lockstep with, the host M68000 CPU; mismatch causes timing violations on the coprocessor handshake. Because the part is obsolete, second-source and franchised stocking distributors are the primary supply channel. Designers should always verify lot traceability and request a manufacturer certificate of conformance when procuring. This page synthesizes current distributor pricing, parametric comparison with same-family variants, and practical sourcing/design notes not found in the original Motorola/NXP datasheet alone.

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MC68882RC33A - 33MHz 68040 FPU Co-Processor 68-PGA | NXP
MC68882RC33A

MC68882RC33A - 33MHz 68040 FPU Co-Processor 68-PGA | NXP

The NXP MC68882RC33A is a 33 MHz floating-point unit (FPU) co-processor for the Motorola 68020 and 68030 M68K family of microprocessors, housed in a 68-pin Pin Grid Array (PGA) package measuring 26.92 x 26.92 mm. It is designed as a strict drop-in companion to the host CPU, providing hardware-accelerated IEEE 754 single, double, and extended-precision floating-point arithmetic that the integer host processor would otherwise have to emulate in software. A floating-point co-processor is a specialized arithmetic processor that operates in parallel with the main CPU. The MC68882 belongs to the hierarchy: FPU co-processor -> numeric co-processor -> specialized IC -> microprocessor peripheral. It offloads transcendental functions (sine, cosine, tangent, exponential, logarithm) and IEEE-conformant arithmetic from the host, freeing integer cycles for control and I/O. Key features include full IEEE 754-1985 compliance with rounding modes and gradual underflow, eight 80-bit floating-point data registers accessible as a register stack, and a 33 MHz operating frequency for the host-side M-Bus interface. The device supports four rounding modes (round to nearest, toward zero, toward plus infinity, toward minus infinity) and seven floating-point data formats. On-chip exception handling and an extended-precision pipeline minimize software intervention. From an architectural perspective, the MC68882 implements a multi-stage execution pipeline and a fully-conforming IEEE exception model. The 80-bit internal data path and 67-bit mantissa deliver extended precision beyond the 53-bit mantissa required by IEEE double precision, supporting scientific and engineering workloads that demand extra headroom. Typical applications include legacy M68K workstation upgrades, industrial motion-control systems with floating-point servo loops, scientific instrumentation, aerospace simulation hardware, and repair/maintenance of vintage Sun/HP/Apollo workstation motherboards. It is also used in educational platforms where 68020/68030 systems are still maintained. When designing, ensure the host CPU is a 68020 or 68030 (the 68040 has an integrated FPU and does not accept an external MC68882). Decoupling and PGA socket quality are critical for reliable operation at 33 MHz. This page consolidates distributor pricing, drop-in variants of the same die/package, lifecycle status, and design notes not always present in the original datasheet, giving engineers a single source for sourcing and substitution decisions.

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