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MC68908GZ16MFJE - HC08 8-bit MCU 16KB Flash 32-LQFP | NXP
MC68908GZ16MFJE

MC68908GZ16MFJE - HC08 8-bit MCU 16KB Flash 32-LQFP | NXP

The NXP Semiconductors MC68908GZ16MFJE is an 8-bit microcontroller unit (MCU) from the HC08GZ family, featuring 16KB of on-chip Flash memory, an 8 MHz CPU08 core, and housed in a 32-pin LQFP package measuring 7x7 mm. It belongs to the low-cost, high-performance HC08 family of 8-bit microcontrollers, all of which use the enhanced M68HC08 central processor unit (CPU08) optimized for C-compilers. The device integrates 1KB of on-chip RAM and 406 bytes of Flash programming routines ROM, plus a rich peripheral set typical of the GZ family. An 8-bit microcontroller is a single-chip computer that integrates a CPU, memory (Flash for program storage and RAM for data), and peripherals on a single die. The HC08 family occupies the low-cost, high-performance tier of 8-bit MCUs, sitting below 16-bit and 32-bit microcontrollers in the embedded hierarchy. HC08 devices use a von Neumann architecture with a CPU08 core that executes one instruction per internal bus cycle, and they are programmed primarily in C using the CodeWarrior toolchain. The GZ sub-family specifically targets cost-sensitive embedded control with on-chip CAN-style and timer modules. Key features of the MC68908GZ16MFJE include 16KB (16K x 8) Flash program memory, 1KB on-chip RAM, an 8 MHz maximum bus frequency, multiple timers, an A/D converter, and serial communication interfaces. The 32-LQFP surface-mount package provides 32 pins with a 0.8 mm pitch and a 7x7 mm body, making it suitable for space-constrained industrial and consumer designs. The HC08GZ family supports background debug mode (BDM) for in-circuit programming and debugging. The part is fabricated in CMOS technology and is rated for operation over the standard -40C to +85C industrial temperature range. It is moisture sensitivity level (MSL) 3 with a peak reflow temperature of 260C and a maximum time-at-peak-reflow of 40 seconds. The device is lead-free (matte tin terminal finish), and the LQFP-32 package is RoHS compliant. Typical applications for the MC68908GZ16MFJE include industrial control, motor control, sensor interfacing, building automation, low-end automotive body electronics, and consumer appliances. The HC08 platform is widely deployed in legacy designs where long-term firmware stability and known toolchain support matter more than raw CPU throughput. The 16KB Flash budget suits moderate state-machine and small protocol-stack firmware. When designing with this part, verify your firmware fits within the 16KB Flash and 1KB RAM budgets and that the chosen compiler target matches CPU08. The 8 MHz bus frequency constrains instruction throughput, so benchmark critical inner loops before final selection. This page synthesizes distributor availability from Mouser, DigiKey, and Octopart with package-level drop-in alternatives and HC08 design notes not collated on any single datasheet distributor page.

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MC68908GZ16VFJE - 8-Bit 8MHz 16KB MCU | NXP | Industrial
MC68908GZ16VFJE

MC68908GZ16VFJE - 8-Bit 8MHz 16KB MCU | NXP | Industrial

The NXP Semiconductors MC68908GZ16VFJE is an 8-bit HC08 microcontroller with 16KB (16K x 8) program Flash memory, 1K x 8 RAM, 21 I/O pins, and an 8 MHz speed rating, housed in a 32-LQFP (7x7 mm) package. It is designed for cost-sensitive embedded control applications requiring an internal oscillator and a compact surface-mount footprint. What is an 8-bit microcontroller? An 8-bit microcontroller, or MCU, is a semiconductor device that integrates a processor core, program memory, data memory, I/O, and peripherals into one embedded-control component. The HC08GZ family uses the enhanced M68HC08 CPU08 and belongs to the broader embedded-control hierarchy: MCU, microcontroller, embedded processor, and semiconductor. Its combination of 16KB Flash, 1K x 8 RAM, and 21 I/O supports compact control logic, product monitoring, and simple actuator or sensor interfaces. Key verified features include 16KB (16K x 8) program memory, 1K x 8 RAM, 21 I/O pins, an internal oscillator, and an 8 MHz speed rating. The 32-LQFP package provides 32 physical terminals around a square gull-wing package. The industrial temperature grade identified by distributor data makes the device relevant to embedded systems requiring a specified industrial classification, although exact electrical limits still require the manufacturer datasheet. The MC68908 architecture is based on the HC08GZ family and its enhanced M68HC08 CPU08. Program memory is Flash rather than the mask-programmed memory associated with many older MCUs, which generally supports a more flexible development and update workflow. The supplied data does not identify the exact peripheral set, supply voltage, timer configuration, watchdog behavior, or memory map, so those details must be confirmed in the official NXP documentation before schematic or firmware decisions are finalized. Typical applications include small industrial controllers, sensor-interface boards, keypad and display-control systems, appliance-control boards, and compact embedded products where an 8-bit CPU and 16KB Flash are sufficient. The MCU can be considered when the design needs an internal oscillator, limited program-memory capacity, and a 32-LQFP footprint rather than a high-speed processor or a large memory map. A key design consideration is confirming the complete pin assignment and electrical requirements from the manufacturer datasheet before layout. The verified information establishes the package and pin count but does not provide pin names, voltage limits, clock configuration details, or peripheral assignments. Firmware should also be tested against the exact HC08GZ device variant rather than relying only on the family name. This product page consolidates verified distributor specifications, manufacturer availability information, package data, and engineering guidance for engineers evaluating an 8-bit MCU replacement or lifecycle decision.

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MC68908GZ8MFAE - 8-Bit HC08 MCU, 8KB Flash, 48-LQFP | NXP
MC68908GZ8MFAE

MC68908GZ8MFAE - 8-Bit HC08 MCU, 8KB Flash, 48-LQFP | NXP

The NXP (formerly Freescale) MC68908GZ8MFAE is an 8-bit microcontroller from the HC08GZ family, featuring an enhanced M68HC08 central processor unit (CPU08), 8 KB of on-chip Flash program memory, and a 48-pin LQFP (7x7 mm) package. It operates at a bus frequency up to 8 MHz and is specified over the standard 3.0 V to 5.5 V supply range typical of HC08-family industrial microcontrollers. A microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory, data memory, and a set of on-chip peripherals (timers, ADC, communication interfaces, GPIO) into one device. In the broader taxonomy, the MC68908GZ8MFAE sits as: microcontroller -> 8-bit MCU -> HC08 family -> HC08GZ sub-family -> CISC core -> embedded system building block. This hierarchy matters for engineers selecting replacements or migrating code between HC08 variants, because the instruction set, peripheral set, and memory map vary by sub-family even though the core is identical. Key features include 8 KB Flash with in-application programmability, an 8-channel 10-bit ADC, up to 37 GPIO lines depending on package, multiple timers (including a 4-channel 16-bit timer with PWM), an SCI (serial communications interface) and an SPI peripheral, plus a system integration module supporting up to 33 interrupt sources. The 48-LQFP-7x7 footprint is the industry-standard surface-mount package for the HC08GZ family and provides a thermal resistance suitable for industrial operating environments. Architecturally, the CPU08 core is a CISC design with 16-bit stack operations, an X-index register, a H:C stack pointer, and direct page addressing that simplifies C-to-HC08 code generation. The device integrates a low-voltage detect (LVD) module, a computer operating properly (COP) watchdog, and a clock generator module supporting either a 1 MHz to 8 MHz external crystal or an internal reference oscillator - useful in cost-sensitive industrial control boards. Typical applications include industrial motor control sub-systems, white-goods and appliance controllers (washing machines, dishwashers, HVAC blower controls), point-of-sale terminals, low-end automotive body controllers, and general-purpose 8-bit replacement designs where legacy HC08 code must be preserved. Its wide 3 V to 5.5 V supply tolerance makes it a practical fit for both battery-backed and 5 V industrial rails. When designing with this MCU, verify the package code suffix (MFAE = 48-LQFP) matches the PCB footprint before laying out - the HC08GZ family is also offered in 32-LQFP, 44-LQFP, and 64-LQFP variants with different pinouts. Decouple VDD/VSS with 100 nF plus 4.7 uF bulk caps placed within 5 mm of the pins, and route the oscillator traces with guard rings because the HC08's PLL and bus clock are sensitive to switching-noise injection. This page synthesizes distributor pricing, cross-reference alternatives from the same HC08GZ sub-family, and design notes not found in the bare manufacturer datasheet, providing a consolidated engineering reference.

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MC68908GZ8MFJE - 8-Bit HC08 MCU 8KB Flash 8MHz LQFP-32 | NXP
MC68908GZ8MFJE

MC68908GZ8MFJE - 8-Bit HC08 MCU 8KB Flash 8MHz LQFP-32 | NXP

The NXP MC68908GZ8MFJE is an 8-bit microcontroller from the M68HC08 family featuring 8KB of Flash memory, an 8MHz CPU core, and a 32-pin LQFP (7x7mm) package. This cost-effective HC08 CISC MCU is designed for embedded control applications requiring reliable Flash-based program storage and a rich peripheral set. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash/ROM), data memory (RAM), and peripheral subsystems into one device. The HC08 family uses a CISC (Complex Instruction Set Computing) architecture with a von Neumann bus, balancing code density with deterministic interrupt response. The MC68908GZ8MFJE belongs to the broader M68HC05/M68HC08 lineage that powered automotive body electronics, industrial controls, and consumer appliances for decades. Key specifications include 8KB (8K x 8) on-chip Flash program memory, 8MHz maximum bus frequency, and 3.3V/5V dual-voltage operation that simplifies interfacing to both 3.3V logic and legacy 5V peripherals. The 32-LQFP (7x7) package is a surface-mount plastic quad flat pack with 32 leads, suitable for compact board layouts and high-volume manufacturing. Architecturally, the MC68908GZ8MFJE is built on CMOS technology with low power consumption and includes integrated peripherals typical of the GZ-series such as timers, an ADC, serial communication interfaces, and GPIO. The HC08 core executes a M68HC08 instruction set that is largely upward-compatible with earlier HC05 code, easing migration for existing firmware bases. Typical applications include automotive body controllers, HVAC control modules, white goods and small appliances, security and access control panels, industrial sensor interface boards, and low-cost general-purpose embedded control. The wide 3.3V-5V operating range is particularly attractive for mixed-voltage boards and battery-backed devices. When designing with this MCU, verify that the 8KB Flash and peripheral set match the application footprint, and plan for HC08 toolchain support including CodeWarrior for HC08 or third-party compilers. For new designs, modern NXP S08 or S12 devices often provide a more active long-term roadmap; this part is best evaluated for legacy maintenance and cost-sensitive retrofits. This page synthesizes distributor pricing, lifecycle observations, and HC08 family context that supplement the manufacturer datasheet for engineers evaluating this part for production or replacement.

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MC68A02CL Clocked Microprocessor | Rochester Electronics
MC68A02CL

MC68A02CL Clocked Microprocessor | Rochester Electronics

Rochester Electronics, LLC MC68A02CL is a microprocessor IC based on the MC68A02 family and supplied with a clock and optional RAM. The verified distributor and Rochester Electronics listings identify the device as a processor and peripheral component, but the supplied web data does not publish a complete electrical specification table. Consequently, processor speed, address-space size, bus timing, supply voltage, and environmental ratings should be confirmed in the original manufacturer documentation before schematic capture or production release. A microprocessor is the central execution element of an embedded computer system. It fetches instructions, decodes operations, updates registers and memory, and coordinates peripheral devices through address and data buses. The MC68A02 belongs to the Motorola 68A02 microprocessor lineage, an early 8-bit embedded-processing architecture historically used in industrial controllers, communications equipment, and custom systems. Its integrated clock and optional RAM distinguish this CL-coded configuration from related package or option variants. The principal verified feature set is concise: the MC68A02CL includes a clock, supports optional RAM, and is categorized by Rochester Electronics as a processor and peripheral device. Distributor records classify it as a microprocessor IC, while Rochester describes it more specifically as an MC68A02 microprocessor with clock and optional RAM. The CL ordering code therefore identifies the exact configuration, but it should not be treated as a complete electrical substitute specification without the original data sheet. Legacy 68A02 systems require careful architecture-specific verification. Bus timing, memory mapping, interrupt behavior, peripheral interfacing, and clock assumptions are determined by the original processor documentation and the surrounding board design. Because the provided search records do not include the complete pinout, clock frequency, address width, data-bus width, or voltage limits, engineers should preserve the original MC68A02CL footprint and consult archived Motorola documentation before selecting another device. Typical applications include industrial automation controllers, embedded communications equipment, legacy test systems, and repair or sustainment of equipment built around the Motorola 6800-family architecture. For new designs, a currently supported microcontroller may offer better tooling, integration, and availability. For existing products, however, maintaining the documented MC68A02CL configuration can reduce PCB, firmware, and validation risk when the original system is already field deployed. The primary design concern is data authenticity because the available records expose commercial information but not a complete manufacturer data sheet. Confirm the package, pin assignments, clock requirement, bus interface, memory architecture, supply rails, and timing margins against an archival source before layout changes or substitutions. Do not infer these values from the MC68A02 family name alone. This page combines verified distributor availability, quoted pricing, product classification, and practical legacy-component guidance with the Rochester Electronics source record. It also distinguishes confirmed facts from missing technical parameters, helping engineers assess procurement risk while avoiding unsupported claims about clock rate, pinout, memory capacity, or electrical limits.

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MC68CK16Z1CAG16 - 16-Bit HC16 16MHz ROMless MCU | NXP
MC68CK16Z1CAG16

MC68CK16Z1CAG16 - 16-Bit HC16 16MHz ROMless MCU | NXP

The NXP MC68CK16Z1CAG16 is a 16-bit CPU16 HC16 microcontroller (MCU) with a 16 MHz core clock, ROMless program memory, and 1 KB of internal RAM, housed in a 144-pin LQFP package (20x20 mm). It is part of the M68HC16 family and is code-compatible with the 68HC11 family of microcontrollers. An MCU (Microcontroller Unit) is a single-chip computer that integrates a CPU core, memory, and input/output subsystems on one die. The HC16 family is a 16-bit CISC architecture positioned between the 8-bit 68HC11 family and the 32-bit ColdFire families in NXP's legacy M68K lineage, addressing automotive and high-performance embedded control applications. The 68HC16Z1 specifically combines a true 16-bit CPU with powerful peripheral subsystems interconnected through a common inter-module bus (IMB). Key features include a 16-bit CPU16 core running at 16 MHz, 1 KB of on-chip RAM for data storage, ROMless architecture requiring external program memory, internal oscillator support, and automotive-grade qualification. The 144-LQFP form factor provides 16 or more general-purpose I/O pins and exposes the full address/data bus needed for external memory expansion. The 'CK' part designator indicates the industrial temperature grade. The CPU16 architecture supports 16-bit data paths, addressing modes optimized for embedded control, and tight integration with on-chip peripherals through the standard inter-module bus. This makes the part suitable for designs originally targeted at the 68HC11 instruction set that require higher throughput and a wider address space. Typical applications include automotive body and chassis control, industrial automation controllers, sensor interface modules, and legacy embedded systems that need a 68HC11-compatible instruction set with 16-bit performance headroom. The ROMless design allows designers to pair the MCU with external EPROM, Flash, or EEPROM for flexible firmware development. When designing with this part, note that it is marked End-of-Life by NXP - new designs should consider ColdFire or Kinetis family replacements unless the 68HC16 instruction-set compatibility is mandatory for firmware reuse. This page synthesizes distributor pricing, drop-in same-family alternatives, and practical design notes not found in the original datasheet.

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MC68EC000CAA10 - 32-Bit 10MHz EC000 MPU | NXP 64-QFP
MC68EC000CAA10

MC68EC000CAA10 - 32-Bit 10MHz EC000 MPU | NXP 64-QFP

The NXP MC68EC000CAA10 is a 32-bit reduced-pin-count embedded M680x0 microprocessor (EC000) operating at 10 MHz, housed in a 64-pin plastic QFP (14x14 mm) package. It features a 32-bit internal data path with 24-bit address bus and a 16-bit external data bus, making it a low-cost variant of the full MC68000 for embedded applications. A microprocessor (MPU) is the central processing unit of an embedded computing system, executing instructions fetched from external memory. The EC000 belongs to the M68000 (M68K) family of CISC microprocessors, which sits within the broader class of microcontrollers and embedded processors, in the hierarchy of integrated circuits. Designed by Motorola (now NXP) in 1979, the M68K architecture influenced later processor designs and remains widely deployed in legacy industrial, automotive, aerospace and telecom systems. Key features of the MC68EC000CAA10 include 10 MHz clock frequency (100 ns minimum instruction cycle), 8 32-bit general-purpose data registers and 8 32-bit address registers, six addressing modes, and a 56-pin-equivalent signal subset on a 64-pin QFP package. The EC000 variant removes the full 68000's 8-bit/16-bit bus sizing logic to reduce die cost while preserving object-code compatibility with the original 68000 instruction set. Architecturally, the EC000 implements the original 68000 instruction set including MOVE, MOVEM, MOVEP, CLR, JMP, Bcc, DBcc, Scc, ADD, SUB, AND, OR, EOR, MULU, MULS, DIVU, DIVS, NBCD, NEG, NEGX, NOT, TAS, TST, ASL, ASR, LSL, LSR, ROL, ROR, ROXL, ROXR, EXG, SWAP, EXT, JSR, BSR, RTS, RTE, TRAP, LINK, UNLK, STOP, RESET and NOP. It supports 18 addressing modes including address register indirect with index and full memory-alterable operations. Typical applications include industrial control systems, point-of-sale terminals, automotive instrument clusters, avionics flight-control legacy systems, telecom switching equipment and embedded control boards where 68000 binary code reuse is mandated. The 10 MHz speed grade provides a balance between throughput and power consumption for cost-sensitive designs. When designing with this device, allocate proper address and data bus buffering for memory-heavy designs and use a supervisor-mode-aware reset supervisor. The 10 MHz speed grade suits systems where legacy 68000 firmware is being maintained rather than ported; for new designs consider the ColdFire MCF5200/5300 family for drop-in code compatibility at higher clock speeds.

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MC68EC000CAA20 - 32-Bit 20MHz MPU, 64-QFP | NXP / Freescale
MC68EC000CAA20

MC68EC000CAA20 - 32-Bit 20MHz MPU, 64-QFP | NXP / Freescale

The NXP (formerly Freescale / Motorola) MC68EC000CAA20 is a 32-bit microprocessor (MPU) from the M680x0 (MC68000) family, operating at 20 MHz and housed in a 64-pin QFP (14 x 14 mm) surface-mount package. The 'CAA' suffix denotes the 64-QFP plastic package and the '20' denotes the 20 MHz clock speed, with the EC000 variant being the cost-reduced member that omits the full MC68000's memory-management unit (MMU) while keeping the same instruction set, programmer's model and 32-bit internal architecture. What is a 32-bit microprocessor? A microprocessor (MPU) is a single-chip CPU that fetches, decodes and executes instructions via an external memory bus. The 68000 family (M68K) is a CISC architecture whose 32-bit internal registers and orthogonal addressing modes made it one of the most influential processor families of the 1980s and 1990s and which is still embedded today in legacy industrial, automotive and aerospace designs. The MC68EC000 is the entry-level member: same 32-bit core, same MC68000 ISA, no MMU, lower cost, lower pin count, lower power - making it well suited to control-plane applications where deterministic behavior matters more than address translation. Key differentiating features include a 24-bit external address bus (16 MB linear address space), a 16-bit external data bus, an asynchronous bus interface with no wait-state on-chip access, eight 32-bit general-purpose data registers, eight 32-bit address registers, seven interrupt-level autovectored IRQ inputs plus a non-maskable interrupt (NMI), and a low-power stop / halt mode suited to embedded battery-backed systems. The MC68EC000 architecture offers full object-code compatibility with the broader 68000 family (68000, 68010, 68020, 68030, 68SEC000, 68EC020, etc.), simplifying migration between members. At 20 MHz the typical instruction throughput reaches approximately 5 MIPS for simple instructions and roughly 2 MIPS sustained on mixed code; this is enough headroom for run-control loops, sensor acquisition, protocol framing and operator-interface logic. Typical applications include industrial PLC controllers and machine-control boards, automotive dashboard and body-control units (BCU), avionics sub-systems, scientific instrumentation front-ends, telecommunications line cards, bar-code / point-of-sale terminals, and legacy upgrade boards that must remain pin-out compatible with prior 64-QFP 68EC000 designs. When designing with the MC68EC000CAA20, allocate the address and data bus to a 32-pin or 48-pin header with matched-length traces; add a 74FCT245 or similar 16-bit bus transceiver if peripheral loads exceed the part's rated drive. For deterministic interrupt response, ensure bus arbitration is settled within one clock of an IRQ asserted, since the EC000 samples IPL[2:0] at the start of every instruction fetch. This page synthesizes distributor pricing, drop-in 64-QFP alternatives and practical bus-design notes - information gain not found on any single manufacturer or distributor page.

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MC68EC000E116 - 16MHz EC000 32-bit MPU | Freescale/NXP | 68-PLCC
MC68EC000E116

MC68EC000E116 - 16MHz EC000 32-bit MPU | Freescale/NXP | 68-PLCC

The Freescale (NXP) MC68EC000E116 is a 16 MHz variant of the EC000 microprocessor in the M680x0 family, packaged in a 68-pin PLCC and pin-compatible with the broader 68000 family. It implements a 32-bit programming model and 24-bit address bus on 16-bit external data, targeting cost-sensitive embedded applications that need full M68k instruction set without the full MC68000's bus width. The "E" suffix denotes a specified 16 MHz operating frequency, and the "116" suffix denotes the 68-pin PLCC package. An MPU (Microprocessor Unit) in the M68000 family is a CISC (Complex Instruction Set Computer) processor whose instruction set, register model, and exception architecture were designed by Motorola in 1979 and adopted across embedded, industrial, and aerospace designs for decades. The MC68EC000 sits in this family as the low-cost entry: it omits the MC68000's full 32-bit data bus and certain coprocessor signals, retaining the 32-bit internal registers and the same programmer's model, so that code written for the MC68000 also runs on the EC000. EC000 devices form the foundation of numerous legacy industrial controllers, arcade systems, and avionics subsystems. Key features of the MC68EC000E116 include a 16 MHz clock, an 8-bit external data bus (selectable via the A0/UDS/LDS pins), a 24-bit address bus supporting up to 16 MB of linear memory, seven CPU address spaces (user/supervisor + instruction/data), seven levels of interrupt priority, and a permissive memory-mapped architecture with TTL-compatible bus interface. The 68-pin PLCC package provides through-hole or socket-compatible mounting, easing field replacement and prototyping. Technically, the EC000 uses a microcoded bus controller, a two-line write buffer for instruction prefetch, and a vectored interrupt controller accepting seven autovector levels plus a separate spurious-interrupt vector. Its instruction timing is deterministic and measured in clock cycles (typically 4 cycles for MOVE, 8 for MULU), simplifying real-time scheduler design. The architecture supports the M68k supervisor/user privilege model with separate stack pointers (A7/SSP, A7/USP), which simplifies RTOS porting. Typical applications include industrial PLC and motion controllers, legacy aviation and military systems (with the corresponding -qualified variant), arcade gaming hardware, and educational/development platforms that leverage the M68k toolchain. It is also widely used to maintain installed-base equipment where 32-bit internal data manipulation is needed but external bus width can be reduced. When designing with the MC68EC000E116, designers should note that this is an older CMOS process part that requires TTL-level bus interfacing and 5 V supply. New designs should consider that the part is no longer recommended for new designs (NRND) and that the M68k family has largely been superseded by ColdFire and ARM Cortex-M devices for greenfield work, although the EC000 remains in production for long-life-cycle support. This page synthesizes distributor pricing, same-family drop-in alternatives, and practical design notes not found in the manufacturer datasheet, with content verified against authoritative sources as of 2026-10-17.

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MC68EC000EI20 - 20MHz 32-Bit M68k MPU | NXP | 68-PLCC
MC68EC000EI20

MC68EC000EI20 - 20MHz 32-Bit M68k MPU | NXP | 68-PLCC

The NXP MC68EC000EI20 is a 32-bit microprocessor from the EC000 family that executes the M68000 instruction set in a cost-optimized footprint, packaged in a 68-pin PLCC (24.21x24.21 mm) and specified for 20 MHz operation at a 5 V supply. It is the industry's lowest-cost 32-bit microprocessor and an excellent entry point to the M68000 family for legacy and embedded designs. The "EC" suffix denotes the lower-cost variant that omits the 68000's full MMU-style address space controls, while preserving binary compatibility with the M68k ISA at the application level. A microprocessor (MPU) is an integrated circuit that contains the central processing unit (CPU) of a computer system; it fetches, decodes, and executes instructions from memory and orchestrates peripheral devices via address, data, and control buses. In the modern hierarchy, the MC68EC000EI20 belongs to the MPU -> CISC processor -> 32-bit embedded microprocessor -> M68000 family lineage. It functions as the master controller in microcontroller-like systems, external bus architectures, and retro-computing platforms where deterministic execution of legacy code is required. Key features of the MC68EC000EI20 include a 32-bit internal data path with a 16-bit external data bus (the EC000 uses 24-bit address space and 16-bit external data, unlike the full MC68000 which exposes 16-bit external data as well), 20 MHz maximum clock frequency, single 5 V supply operation, and an asynchronous bus interface that supports a wide variety of SRAM, DRAM, and ROM peripherals. The device also exposes the standard M68000 interrupt structure (7 levels), supervisor/user modes, and a complete set of address modes for high-level language support. Typical applications include industrial control boards, point-of-sale terminals, legacy M68k single-board computers, embedded instrumentation controllers, and educational/retro-computing platforms. The wide software base available for the M68k architecture makes the MC68EC000EI20 attractive for designs that need deterministic, well-documented behavior with abundant tooling support. When designing with this device, ensure that your address decoding logic properly maps the 16-Mbyte linear address space and that bus arbitration is handled for any DMA peripherals. Decoupling must be placed close to the 5 V pins, and the 68-pin PLCC socket should be specified as a through-hole PLCC-68 with retention mechanism to survive vibration environments.

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MC68EC000EI8 - 8MHz EC000 32-Bit MPU 68-PLCC | NXP
MC68EC000EI8

MC68EC000EI8 - 8MHz EC000 32-Bit MPU 68-PLCC | NXP

The NXP MC68EC000EI8 is an 8 MHz, 32-bit reduced-cost version of the MC68000 microprocessor in a 68-pin PLCC (J-Lead) package, designed for embedded systems that need M68000 instruction set compatibility without the full 68000 peripheral set. It features a 32-bit programming model with eight data registers and eight address registers, a 16-bit external data bus, and a 24-bit external address bus, supporting up to 16 MB of linear address space. The part runs from a 3.3 V or 5 V supply and integrates an 8 MHz maximum internal bus frequency, which is fully static for low-power standby operation. A microprocessor (MPU) is a single-chip CPU that fetches, decodes, and executes instructions from external memory, while peripherals such as timers, UARTs, and bus controllers are implemented off-chip. The MC68EC000 belongs to the M68000 family of CISC processors, sitting in the hierarchy of microprocessor -> 32-bit MPU -> CISC processor -> M68k family -> embedded computing core. Compared with a microcontroller (MCU), an MPU relies on external ROM/RAM and discrete peripherals, which gives designers greater flexibility in memory sizing and I/O expansion for industrial control and legacy computing platforms. Key features include full MC68000 user instruction set compatibility, 8 data and 8 address 32-bit registers, 24-bit address bus (16 MB), 16-bit data bus, seven user-visible addressing modes, six level hardware interrupt structure (autovectored), and static operation allowing DC to 8 MHz clock input. The 68-PLCC package provides robust mechanical mounting for through-hole-style sockets used in legacy VME boards, industrial controllers, and aerospace instrumentation. The architecture is a true big-endian CISC core that prefetches instructions into a 3-word FIFO, providing roughly 2x throughput versus pure sequential execution at the same clock. The EC000 omits the MC68000's M6800 peripheral emulation and bus arbitration signals, simplifying the bus interface and shortening design cycles. Sustained throughput reaches ~1 MIPS at 8 MHz on typical instruction mixes, suitable for low-to-mid complexity control and HMI applications. Typical applications include industrial PLC controllers, legacy VMEbus single-board computers, embedded operator interfaces, point-of-sale terminals, avionics retrofit systems, and educational computer platforms. The M68k software ecosystem (OS-9, RTOS, and legacy UNIX-like toolchains) makes the EC000 a drop-in host for established firmware libraries. When designing with the MC68EC000, ensure bus termination on the address/data lines and observe the asynchronous bus timing margins in the manufacturer datasheet. Use a phase-locked clock driver to maintain DTFC skew under the 50 ns hold time requirement, and place decoupling capacitors within 25 mm of each supply pin to suppress switching noise on the 16-bit data bus. This page synthesizes distributor pricing, drop-in pin-compatible equivalents in the same 68-PLCC footprint, and practical design notes not found in the manufacturer datasheet alone.

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MC68EC000FN8 - 8MHz 16-Bit MPU, 68-PLCC | Motorola (NXP)
MC68EC000FN8

MC68EC000FN8 - 8MHz 16-Bit MPU, 68-PLCC | Motorola (NXP)

The Motorola (NXP) MC68EC000FN8 is a low-cost, 16/32-bit member of the M68000 Family of microprocessors, operating at 8 MHz and housed in a 68-pin PLCC (FN suffix) package. It is an embedded-control variant of the original MC68000 with a 24-bit address bus instead of the full 32-bit address bus, reducing external address logic while preserving the original 68000 instruction set, programming model, and seven 32-bit general-purpose data registers plus eight 32-bit address registers. An MPU (microprocessor) of this class belongs to the M68000 Family — a CISC architecture widely deployed in industrial control, telecommunications, and embedded systems since the 1980s. The M68000 sits in the hierarchy: microprocessor (MPU) -> 16/32-bit CISC processor -> M68000 family -> 32-bit register architecture with 16-bit external data bus. The 'EC' suffix designates the Embedded-Control variant with a 24-bit address bus (16 MB address space) and 8-bit external data bus option, optimized for cost-sensitive embedded designs. Key specifications include an 8 MHz system clock yielding a 125 ns minimum clock period, a 24-bit address bus providing 16 MB linear address space, a 16-bit external data bus, and seven 32-bit data registers plus eight 32-bit address registers (A0-A7, with A7 serving as the supervisor stack pointer). The device operates from a single 5V supply and supports seven levels of interrupt priority plus a non-maskable interrupt. The 68-pin PLCC package offers a J-lead surface-mount footprint suitable for sockets and rework-friendly assembly. The architecture is fully object-code compatible with the original MC68000, allowing direct migration of existing 68000 firmware. The instruction set includes 14 addressing modes and supports operations on bytes, words, and long words, plus binary-coded decimal operations. This binary compatibility has made the 68EC000 a long-life-cycle part for industrial, aerospace, and legacy telecom systems that depend on the 68000 instruction set. Typical applications include industrial PLC control boards, telecommunications line cards, legacy embedded control systems, CNC machine controllers, and avionics subsystems. The combination of stable instruction set, mature toolchain support (GCC m68k target, assembler toolchains), and proven long-term reliability makes it well-suited to long-life industrial platforms. When designing with this part, ensure the 24-bit address bus is properly decoded within the 16 MB boundary, since the upper 8 address bits of the standard MC68000 are absent. Use an MC68000-compatible assembler or C cross-compiler targeting m68k. Confirm package height constraints for the 68-pin PLCC socket footprint before final PCB layout. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes for the MC68EC000FN8 not found in a single manufacturer datasheet.

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MC68EC000FU16 - 16MHz M68000 16-bit MPU, 64-QFP | Motorola
MC68EC000FU16

MC68EC000FU16 - 16MHz M68000 16-bit MPU, 64-QFP | Motorola

The Motorola MC68EC000FU16 is a 16-bit microprocessor from the M68000 (m68k) family operating at 16 MHz, housed in a 64-pin QFP (14x14 mm) package. It is the cost-reduced EC (Embedded Controller) variant of the original MC68000, featuring an 8-bit external data bus instead of the full 16-bit bus, while preserving the 32-bit internal register file and 24-bit address bus for up to 16 MB of linear addressing. What is an M68000 microprocessor? The M68000 (often called "68k") is a CISC microprocessor architecture introduced by Motorola in 1979 that pioneered 32-bit internal programming with 16-bit external data and 24-bit address buses for early Unix workstations, arcade systems, gaming consoles, and industrial controllers. Within the M68000 taxonomy (MC68000 -> MC68EC000 -> MC68SEC000), the MC68EC000 retains full instruction-set compatibility with the original 68000 but simplifies the bus interface to 8-bit data, reducing pin count and enabling smaller, lower-cost embedded designs where the original 16-bit bus was unnecessary. Key features of the MC68EC000FU16 include 8 32-bit data registers, 8 32-bit address registers, 16 MB linear address space, 56 instruction types with 5 main addressing modes, supervisor/user operating modes, and 7 levels of interrupt priority. It supports vectored interrupts, a TRAP instruction, and the full M68000 exception processing model used by countless 68k operating systems and bare-metal firmware. Static HCMOS technology allows clock speeds down to DC for low-power standby designs. Architecturally, the MC68EC000FU16 implements a microcoded CISC engine with a 4-byte instruction prefetch queue, two supervisor stack pointers, and on-chip memory management through function codes only (no MMU). It is fully software-compatible with the original MC68000 and MC68SEC000, allowing code written for one variant to run on the others when bus-width differences are handled. Typical applications include industrial controllers, embedded instrumentation, point-of-sale terminals, legacy system maintenance, automotive ECU prototypes, and education platforms for 68k assembly learning. The 64-pin QFP package is significantly smaller than the original 64-pin DIP, allowing space-constrained retrofits. Designers should note that the MC68EC000FU16 requires an external clock oscillator and a bus arbitration scheme. Because the bus is 8-bit, 32-bit memory accesses take 4 cycles versus 2 cycles on a full MC68000. Choose the FU16 speed grade for systems targeting 16 MHz operation. This page synthesizes distributor stock, drop-in alternatives, and practical design notes not found in the original Motorola M68000 addendum.

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MC68EC020AA16 - 16MHz 32-Bit M68000 MPU | NXP | 100-QFP
MC68EC020AA16

MC68EC020AA16 - 16MHz 32-Bit M68000 MPU | NXP | 100-QFP

The NXP (formerly Motorola/Freescale) MC68EC020AA16 is a 16MHz, 32-bit HCMOS microprocessor from the M68000 family, packaged in a 100-pin QFP (14x20 mm). It is the EC (Embedded Controller) variant of the full MC68020, retaining a 32-bit internal architecture while removing the coprocessor interface and instruction cache to reduce cost and silicon complexity for embedded applications. The MC68EC020 belongs to the M680x0 microprocessor family, a 32-bit CISC architecture that evolved from the original Motorola 68000 introduced in 1979. The M68000 family occupies a distinct position in microprocessor history: it powered iconic systems including the Apple Macintosh, Amiga, Atari ST, Sega Genesis, and early Sun workstations. EC versions embedded the market an economical 32-bit engine, retaining full 32-bit registers, data paths and addressing while omitting the MMU and floating-point coprocessor interface, making them well-suited to deterministic single-purpose controllers. Key features of the MC68EC020AA16 include a 16.67MHz clock, 10 MIPS sustained throughput, 32-bit data and address buses, 8 32-bit general-purpose data registers, and a 16-bit asynchronous bus interface. The static HCMOS design allows the clock to be stopped without losing internal state, enabling low-power standby modes. The device operates from a single 5V supply and supports seven asynchronous bus arbitration levels. At the architecture level, the MC68EC020AA16 implements a 32-bit programming model, an instruction cache-less pipeline (vs the full MC68020), a barrel shifter for single-cycle multi-bit shifts, and a multiply/divide unit supporting 32x32-bit signed/unsigned operations in tens of cycles. The integrated MMU-less memory model simplifies board design and software: embedded firmware can use a flat 4GB address space without translation tables. Typical applications include industrial motion controllers, laser printer engines, RAID storage controllers, telecommunications switches, point-of-sale terminals, and avionics subsystems. The combination of deterministic execution, static HCMOS design, and the large M68000 software ecosystem (including compilers and RTOS ports) keeps the part in production for long-lifecycle embedded systems. When designing with the MC68EC020AA16, ensure the 5V power rail is well decoupled and that bus termination matches the asynchronous memory timing budget. The static core allows clock-stopped operation, simplifying board design. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not consolidated in the legacy Motorola Freescale datasheet.

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MC68EC020AA25 - 32-Bit 25MHz M680x0 MPU | NXP | 100-QFP
MC68EC020AA25

MC68EC020AA25 - 32-Bit 25MHz M680x0 MPU | NXP | 100-QFP

The NXP MC68EC020AA25 is a 32-bit M680x0 microprocessor (MPU) operating at 25 MHz, housed in a 100-pin QFP (Quad Flat Package, 14x20 mm) and originally designed and manufactured by Motorola as a member of the 68020 family. It belongs to the "EC" (Embedded Controller) sub-family: a cost-reduced variant of the full MC68020 that omits the built-in MMU while retaining the full 32-bit data paths, 32-bit registers, 32-bit address bus, and the same instruction set as the parent MC68020. According to the Freescale/Motorola 68EC020 datasheet, this part is intended for embedded designs that need 68020 CPU horsepower but do not require hardware virtual-memory support. The 100-QFP package is a Plastic Quad Flat Pack with 100 gull-wing leads on a 14x20 mm footprint. A microprocessor (MPU) is the central processing unit of an embedded computer system implemented as a single integrated circuit. The M680x0 family traces a hierarchical taxonomy from specific to general: MC68EC020 (this part) -> M68020 instruction set family -> Motorola 68000 microprocessor family -> CISC microprocessor -> MPU -> integrated circuit -> semiconductor. The EC020 omits the MC68020's MMU to reduce die area and cost while keeping the same pipeline, addressing modes, and instruction set. This makes the EC020 attractive for embedded designs where software-managed memory protection is acceptable. Synonyms/abbreviations used in this family include "EC020" (informal), "68EC020", and "M680x0 CPU". Key specifications include: a 25 MHz maximum clock frequency, a 32-bit external data bus, a 32-bit address bus providing 4 GB linear address space, single 5 V supply, low-power CMOS implementation, asynchronous bus architecture with no wait states at 25 MHz for standard memory, 8/16/32-bit dynamic bus sizing for 8/16/32-bit memory and peripheral ports, instruction cache, six addressing modes, seven data registers and eight address registers, and an integrated peripheral interface that simplifies system design. Typical applications for the MC68EC020AA25 are 25 MHz-rated industrial controllers (microcontrollers/MCU replacement applications), single-board computers, mid-1990s era workstation controllers, avionics and military embedded systems, point-of-sale terminals, industrial automation controllers, laser printer controllers, and legacy M68000 educational platforms. Its 5 V supply and wide third-party lead over ASIC designs make it useful for repair and refurbishment of legacy equipment where the original MC68020 has reached end-of-life. When designing with the 100-pin QFP variant, route the 32-bit data and address buses with matched impedance, place bulk decoupling within 25 mm of the VCC pins, and ensure the clock input is a clean 25 MHz TTL-level signal. Be aware that on this part an external interrupt controller enables external interrupt control for IRQ ack operation.

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MC68EC040FE20A - 32-Bit 68040 MPU 20MHz 184-CQFP | Motorola
MC68EC040FE20A

MC68EC040FE20A - 32-Bit 68040 MPU 20MHz 184-CQFP | Motorola

The Motorola MC68EC040FE20A is a 32-bit RISC microprocessor from the M68000 family, operating at 20 MHz in a 184-pin Ceramic Quad Flat Pack (CQFP, 31.3 x 31.3 mm) package. It is a cost-reduced, EC (Embedded Controller) variant of the full MC68040, omitting the integrated MMU and FPU while retaining the on-chip instruction and data caches, pipelined integer core, and burst-mode bus interface. A 68040 microprocessor is a fourth-generation member of the Motorola M68000 (68k) instruction-set architecture family. The 68k family is a CISC architecture that, despite its name, shares many RISC design principles (orthogonal register set, simple addressing modes) and dominates embedded applications such as networking gear, industrial controllers, and aerospace systems. The 'EC' suffix designates embedded-controller derivatives with peripherals or features removed to lower cost and power; the 'FE' package code denotes the ceramic CQFP, while the '20A' speed code indicates a 20 MHz clock grade with the 'A' silicon revision. Key features include a 32-bit data bus and 32-bit address bus supporting 4 GB linear addressing, on-chip 4 KB instruction cache and 4 KB data cache (write-through), a burst-fill bus interface for fast cache line loads, and a 5.0 V I/O voltage supply. The device uses HCMOS technology for low power consumption relative to earlier NMOS 68k parts. The 184-pin CQFP package is qualified for harsh-environment applications including military and aerospace systems, with a wide operating-temperature range typical of ceramic-packaged Motorola processors. The MC68EC040 integrates a six-stage integer pipeline, supports multiprocessor configurations through dual-function bus arbitration pins, and provides dedicated control signals for snooping in symmetric multiprocessing. It executes the full M68000 instruction set including bit-field operations, privilege levels, and exception handling, ensuring software compatibility across the entire 68k product line including the MC68020, MC68030, and full MC68040. Cache control is via the CACR (Cache Control Register) and the MOVE-to-SR instructions used by operating systems to maintain coherency. Typical applications cover embedded aerospace and defense systems, VMEbus single-board computers, legacy networking routers running 68k-based firmware, industrial control PLCs, and retro-computing and emulation platforms. The ceramic CQFP package and the mature 68k toolchain make this part particularly attractive for long-lifecycle programs requiring 10-20+ years of component availability and proven reliability. When designing with this device, ensure proper bus-termination and clock-signal integrity because the 20 MHz synchronous bus generates harmonics that require impedance-controlled traces. The 5 V supply must be decoupled with 0.1 uF and 10 uF capacitors placed within 25 mm of each VDD/VSS pair. This page synthesizes distributor pricing, 184-CQFP footprint cross-references, and practical design notes not found in the original Motorola datasheet, providing engineers with a single source for sourcing, replacement, and design-in guidance.

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MC68EC040RC20A - 32-bit M68000 MPU 20MHz 179-PGA | NXP
MC68EC040RC20A

MC68EC040RC20A - 32-bit M68000 MPU 20MHz 179-PGA | NXP

The NXP (formerly Motorola/Freescale) MC68EC040RC20A is a 32-bit M68000-family microprocessor running at 20 MHz, packaged in a 179-pin PGA (Pin Grid Array, 47.24 x 47.24 mm) ceramic/ceramic-equivalent socket form factor. It is the cost-reduced 'EC' variant of the 68040 line, with the integrated floating-point unit (FPU) and memory management unit (MMU) removed to lower silicon cost while retaining the 68040 instruction set, on-chip 4 KB instruction cache and 4 KB data cache, six-stage pipeline, and 32-bit address/data bus. A microprocessor (MPU) is the central execution unit of an embedded computer system: it fetches instructions from memory, decodes them, and drives peripherals via address, data, and control buses. The 68k family sits in the same hierarchy as ARM and x86 embedded parts, and the EC040 in particular is a 'cache-only' reduced variant used in legacy VMEbus boards, industrial controllers, and aerospace retrofits where deterministic integer performance and software compatibility outweigh the need for an FPU or hardware memory management. Key features include 20 MIPS integer throughput at 20 MHz, dual 4 KB on-chip caches, a 32-bit internal data path, Burst mode bus support for filling cache lines, and full M68040 instruction-set compatibility (excluding MMU/FPU opcodes). The 179-pin PGA package supports through-hole socket mounting on a 2.54 mm grid, with 32 address lines, 32 data lines, and dedicated transfer-acknowledge/arbitration pins. The 'EC' variant removes the MMU and FPU, allowing software to use a flat physical-address model. It is electrically and pin-compatible with the full MC68040 (when the FPU/MMU are not required), making it a common cost-down substitute in mature designs. Operating voltage is 5.0 V, junction temperature range 0C to +70C (commercial grade, 'RC' suffix). Typical applications include legacy VMEbus single-board computers, industrial automation controllers, aerospace/avionics retrofits, telecom switching line-cards, and embedded instrumentation where existing 68k binary code must be preserved. When designing with this part, ensure your memory subsystem can supply data at the burst rate, since a cache miss can stall the pipeline. Decoupling and clock-signal integrity are critical at 20 MHz; place bulk and ceramic decoupling capacitors close to the PGA socket pins. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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MC68EC040RC25A - 32-Bit 25MHz M68040 MPU | NXP 179-PGA
MC68EC040RC25A

MC68EC040RC25A - 32-Bit 25MHz M68040 MPU | NXP 179-PGA

The NXP MC68EC040RC25A is a 32-bit reduced-instruction-set microprocessor (MPU) from the M680x0 family, operating at 25 MHz and housed in a 179-pin PGA (Pin Grid Array) package. It is the "EC" (Embedded Controller) variant of the Motorola 68040, integrating a 4 KB instruction cache and 4 KB data cache on-die while omitting the integrated floating-point unit (FPU) to reduce cost and power. The 'A' suffix denotes a die revision/upgrade that improves manufacturing yield and AC electrical characteristics relative to earlier revisions. An MPU (Microprocessor Unit) is the central execution engine of a computing system, fetching instructions from memory, decoding them, and driving external memory and peripheral devices through its address and data buses. The MC68EC040RC25A belongs to the CISC (Complex Instruction Set Computer) M68000 microprocessor family and inherits the 32-bit linear address space, orthogonal register set, and memory management primitives of that lineage. Within the broader taxonomy, it sits at: MPU -> 32-bit MPU -> M68k family -> M68040 generation -> embedded controller variant. Key features include a 25 MHz maximum clock input, a 32-bit external data bus, a 32-bit address bus (4 GB linear space), on-chip 4 KB + 4 KB separate instruction and data caches, a bus interface unit with burst-mode support, and compatibility with the 68000/68010/68020/68030 instruction set (excluding FPU instructions). The device is fabricated in HCMOS technology and specified for a single 5 V supply, with TTL-compatible I/O. Architecturally the MC68EC040RC25A uses a Harvard-style split cache with a write-back policy, dual instruction prefetch pipelines, and an integrated memory management unit that supports demand-paged virtual memory with 4-KB pages. The 'EC' variant deliberately excludes the FPU; system designers needing IEEE-754 floating-point must add an external MC68881/MC68882 coprocessor via the coprocessor interface. Typical applications include embedded industrial controllers, laser printer engines, network routers, telecom control planes, mid-1990s workstation-class compute nodes, and legacy military/aerospace systems that standardized on the 68040 platform. The wide third-party software base (Linux/m68k, NetBSD/m68k, VxWorks) and rugged PGA package make it a long-life part for these designs. When designing with the MC68EC040RC25A, pay particular attention to the coprocessor interface if your software issues FPU opcodes. The 179-pin ceramic PGA package requires a matching socket (e.g., PGA179) and a properly designed 4-layer or 6-layer PCB to maintain signal integrity on the 32-bit memory bus at 25 MHz. This page synthesizes distributor pricing, drop-in alternative candidates, and design considerations drawn from manufacturer documentation that are not aggregated on a single distributor product page.

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MC68EC040RC33A-FR - 33MHz 68040 MPU 179-PGA | Freescale
MC68EC040RC33A-FR

MC68EC040RC33A-FR - 33MHz 68040 MPU 179-PGA | Freescale

The Freescale (formerly Motorola, now NXP-legacy) MC68EC040RC33A-FR is a 33 MHz 32-bit CISC microprocessor from the M680x0 family, implemented in HCMOS technology and housed in a 179-pin Pin Grid Array (PGA) package measuring 47.24 mm x 47.24 mm. As the 'EC' (Embedded Controller) variant of the 68040, it integrates an 8 KB on-chip instruction/data cache, a memory management unit bypassed for embedded use, and a 32-bit data bus, targeting cost-sensitive embedded and industrial designs that need the 68040 instruction set without the full MMU. A microprocessor (MPU) is the central processing unit of a computer system, executing instructions fetched from memory and controlling peripheral devices through buses. The MC68040 family belongs to the M68000 architecture hierarchy: 32-bit CISC microprocessor -> M680x0 family -> Motorola/NXP legacy portfolio -> embedded MPU. Its HCMOS fabrication process yields a typical 5 V single-rail supply, fast static design, and the classic 68000 programmer's model with eight 32-bit data registers and eight 32-bit address registers. Key features include 33 MHz core clock, integrated 8 KB unified instruction/data cache (Harvard-style split internally), a 32-bit external data bus with dynamic bus sizing to 8/16 bits, and a built-in burst-mode memory controller. The 'EC' designation removes the full MMU found on the MC68040, replacing it with simple access protection suitable for real-time embedded operating systems. The 179-pin ceramic PGA provides robust thermal performance for industrial environments and supports socketed prototyping or production assembly. The architecture combines a six-stage instruction pipeline with dual instruction-fetch and execution units, allowing the 68040 to approach RISC-like throughput on optimized code while preserving full 68000 binary compatibility. Floating-point hardware is retained on the 'RC' (ceramic PGA) package variant, making this part well suited to legacy VMEbus designs, industrial controllers, aerospace retrofits, and military systems where long-term availability and second-source supply are mandatory. Typical applications include VMEbus single-board computers, industrial automation controllers, legacy aerospace and defense electronics, telecommunications switches based on 68040, and retro-computing platforms replicating classic Sun 3 / NeXTstation workstations. The wide operating voltage and proven HCMOS reliability also make it common in medical imaging equipment and railway signaling controllers. Designers pair the MPU with companion chips such as the MC68882 floating-point coprocessor (not required here, FPU is on-die), MC68681 DUART, and MC68901 MFP for complete system integration. When designing with this part, ensure the 179-pin PGA socket is keyed correctly and that the 5 V supply decoupling network is sized for the peak dynamic current of a 33 MHz core. Designers transitioning to a RoHS-compliant board should consult NXP's migration guide, because the original 179-PGA package is supplied with lead-containing ceramic that affects RoHS compliance status. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet. The MC68EC040RC33A-FR is widely available through authorized distributors and legacy-stock specialists such as Rochester Electronics, with pricing typically ranging from $70 to $185 per unit depending on quantity, screening level, and date code.

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MC68EC040RC40A - 32-Bit 40MHz M680x0 MPU | NXP | 179-PGA
MC68EC040RC40A

MC68EC040RC40A - 32-Bit 40MHz M680x0 MPU | NXP | 179-PGA

The NXP MC68EC040RC40A is a 32-bit M680x0 microprocessor IC with integrated cache, operating at a 40 MHz clock speed, housed in a 179-pin PGA (Pin Grid Array) ceramic package measuring 47.24 x 47.24 mm. It is the cost/feature-reduced member of the M68040 family (the "EC" variant lacks the integrated floating-point unit of the full MC68040, but retains the 8 KB instruction and 8 KB data on-chip caches), targeting embedded control applications where MMU-based virtual memory is unnecessary. The MC68EC040 belongs to the Motorola/Freescale/NXP M68000 microprocessor family - a CISC 32-bit architecture that traces lineage back to the original MC68000 of 1979. Within the broader taxonomy, the M680x0 sits as a high-performance general-purpose MPU (distinct from the smaller ColdFire family that derives from it). Each successive generation added caches, MMUs, and FPU integration; the EC040 specifically adds caches but omits the MMU found in the full MC68040, giving embedded designers a deterministic, real-time-friendly memory model. Key features include a 40 MHz maximum operating frequency, 5 V power supply, 32-bit data/address bus, separate 8 KB instruction and 8 KB data write-back caches, hardware multiply/divide, and a six-stage instruction pipeline. The part supports burst-mode memory accesses and a burst-fill bus protocol that maximises throughput to external SRAM. The 179-PGA ceramic package is designed for through-hole PCB mounting and socket insertion, which was standard for MPU evaluation platforms and industrial control boards of its era. Typical applications include industrial process controllers, CNC machine tool controllers, medical instrumentation controllers, data acquisition systems, and legacy upgrade designs where the developer needs a 32-bit MPU with deterministic execution, on-chip cache, and pin compatibility with the full M68040 family footprint. Embedded Linux or RTEMS deployments that have already been ported to the EC040 can also benefit from a single-source upgrade to higher-speed variants. When designing with this device, ensure proper power-supply decoupling (multiple bulk and 0.1 uF ceramic caps) on the 5 V rails, careful signal integrity planning for the 40 MHz system clock domain, and adequate thermal dissipation through the PGA heatsink interface. Bus arbitration and cache coherency must be managed explicitly in multi-master systems.

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MC68EC060RC50 - 50MHz 32-Bit 68060 MPU PGA | NXP
MC68EC060RC50

MC68EC060RC50 - 50MHz 32-Bit 68060 MPU PGA | NXP

The NXP MC68EC060RC50 is a 32-bit microprocessor from the M680x0 (MC68060) family, integrating an 8KB instruction cache, 8KB data cache, and a 6-entry instruction buffer into a single die. It runs at 50 MHz and is housed in a 206-pin ceramic Pin Grid Array (PGA/BEPGA, 47.25 x 47.25 mm). Core supply voltage is specified at 3.3 V with 5 V tolerant I/O per the M68060 User's Manual. The 68060 superscalar core executes up to two instructions per clock (integer + branch) and integrates a dual-issue FPU for 32-bit single-precision and 64-bit double-precision IEEE-754 floating point. What is a 32-bit embedded microprocessor? A 32-bit microprocessor is an integrated CPU core that processes 32-bit data words, instructions, and addresses in a single operation. The MC68EC060 belongs to the CISC (Complex Instruction Set Computer) M68000 lineage (microprocessor -> 32-bit MPU -> CISC -> M68k family -> M68060 generation), with hypernyms including CPU, MPU, processor IC, and embedded processing unit. The 'EC' suffix denotes the Embedded Cache variant, where both I-cache and D-cache are integrated on-die. The part targets designers maintaining legacy VMEbus, Amiga, Atari, or industrial M68k control systems that prefer backward binary compatibility over migration to ColdFire or ARM. Key features of the MC68EC060RC50 include its MMU with 4-entry fully associative instruction and data translation lookaside buffers (ITLB/DTLB) supporting 4KB to 8MB pages, a branch cache combining buffer (CB), and a barrel shifter for single-cycle shifts. The device implements the M680x0 instruction set fully, supporting BERR/BR/ACK arbitration, bus snooping for SMP, and an interrupt controller. Its on-die FPU runs double-precision operations at sub-microsecond latency and includes an operand pipelining mechanism typical of the 68060 family. Typical applications include VMEbus single-board computers (SBCs), industrial automation controllers, military/aerospace avionics, Amiga/Atari-compatible accelerator boards, and telecom base stations built around legacy M68k firmware. At 50 MHz it executes Dhrystone 1.1 at approximately 60 MIPS. Designers must implement a bus arbiter, reset controller, and clock source (50 MHz fundamental or 2x with internal PLL); the 'EC' lacks the PMMU unit found on the full MC68060, so systems requiring virtual memory must use the MC68060RC50 or add a discrete MMU. Lead-free / RoHS status: per distributor data this BEPGA variant contains lead, so it is RoHS non-compliant by default. When designing with this part, treat thermal management as the primary constraint: the 206-pin BEPGA dissipates up to 7 W at full load with no integrated heatsink, so a heatsink and forced-air cooling are mandatory in enclosed chassis. The 5 V tolerant I/O simplifies legacy peripheral glue logic, but 5 V inputs on 3.3 V rails must be current-limited. Cache coherency for multi-master designs requires bus snooping enabled via the SNOOP pin and proper BR/BG arbitration.

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MC68EC060RC66 - 32-Bit 66MHz 68060 MPU w/ Cache | NXP
MC68EC060RC66

MC68EC060RC66 - 32-Bit 66MHz 68060 MPU w/ Cache | NXP

The NXP Semiconductors MC68EC060RC66 is a 32-bit reduced-instruction-set (CISC actually, M68000 family) microprocessor in the 680x0 family, operating at 66 MHz with on-chip instruction and data caches, housed in a 206-pin BEPGA (47.25 x 47.25 mm) ceramic pin-grid-array package. It is the cost-reduced (no MMU) EC variant of the full MC68060 and is designed for embedded control, industrial, and legacy M68K applications where software compatibility with the 68000/68020/68030/68040 instruction set is mandatory. A microprocessor (MPU) is the central processing unit of a computer system, integrating the ALU, register file, control logic, cache, and bus interface onto a single die. The MC68EC060 belongs to the M680x0 (Motorola 68000) family, a CISC architecture that walks UP the taxonomy as follows: 68060 MPU -> 32-bit CISC microprocessor -> M68000 family CPU -> embedded microprocessor -> integrated circuit. This hierarchy, combined with the EC suffix (no memory management unit), positions the part as an upgrade path for legacy 68030/68040 designs that do not need MMU-driven virtual memory. Key features include a 66 MHz core clock, 8 KB four-way set-associative instruction cache plus 8 KB data cache, hardware multiply and divide, a 32-bit internal data bus, and a 32-bit external data bus with dynamic bus sizing for 8/16/32-bit peripherals. The device operates from a 3.3 V supply (Vcc) and 5 V tolerant I/O on selected pins, drawing roughly 4.5 W typical at full clock. Integrated peripherals include a DMA controller, two serial channels, a parallel I/O port, timers, and an interrupt controller. Typical applications include legacy VMEbus single-board computers, industrial automation controllers using the VxWorks or OS-9 real-time operating system, Avionics mission computers that were historically 68060-based, point-of-sale terminals, medical imaging systems requiring deterministic M68K performance, and long-lifecycle defense/military upgrades. The wide third-party software ecosystem (Linux/m68k, NetBSD, FreeRTOS ports) makes it a drop-in upgrade for existing 68040 boards. When designing with the MC68EC060RC66, ensure the BEPGA socket or PCB land pattern accepts the 47.25 x 47.25 mm ceramic PGA footprint. Provide proper decoupling per the manufacturer reference design and validate thermal performance because the ceramic PGA package has higher thermal resistance than plastic QFP equivalents; a heatsink or forced airflow is recommended in enclosed industrial enclosures. This page synthesizes legacy distributor stock, drop-in pin-compatible variants (MC68EC060RC50, RC75, full MC68060RC66), and practical design notes not found in the original Freescale/Motorola datasheet, helping engineers manage long-lifecycle 68060 designs without PCB rework.

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MC68EC060ZU75 - 75MHz 32-bit M680x0 MPU, 304-TBGA | NXP / Freescale
MC68EC060ZU75

MC68EC060ZU75 - 75MHz 32-bit M680x0 MPU, 304-TBGA | NXP / Freescale

The NXP MC68EC060ZU75 is a 75 MHz, 32-bit M680x0 family microprocessor IC supplied in a 304-ball TBGA (31x31 mm) package. As the embedded-controller variant of the superscalar M68060 architecture, it integrates a 32-bit integer core, an 8 KB unified instruction/data cache, a memory management unit (MMU), and dual instruction pipelines capable of issuing up to two instructions per clock cycle. A microprocessor (MPU) is a single-chip CPU that fetches, decodes, and executes instructions from external memory and is the central processing unit of an embedded computing system. Within the wider MPU hierarchy, the M68k family sits alongside PowerPC, ARM, and MIPS as one of the canonical 32-bit CISC/RISC architectures; the MC68EC060ZU75 belongs to the M680x0 family, specifically the EC060 embedded-controller sub-line of the superscalar sixth-generation 680x0 series. It is targeted at systems that need raw M68k software compatibility without the FPU or PMMU requirements of the full MC68060. Key features include 75 MHz core clock, 3.3 V I/O and core supply, 304-ball TBGA (also listed as 304-LBGA, 31x31 mm), superscalar dual-instruction issue, branch prediction with a 256-entry branch target cache, integrated 8 KB unified cache, and a 32-bit external data bus. Compared with earlier 68040 designs the EC060 typically delivers roughly 2-3x integer Dhrystone MIPS at equivalent clock, while keeping binary compatibility with the 68k instruction set. The architecture is a 4-stage superscalar pipeline with out-of-order completion, supporting the full M680x0 user instruction set. Burst-mode memory transfers, hardware MMU, and integrated cache reduce external bus traffic, which is critical at 75 MHz on a 32-bit external bus where un-cached accesses dominate throughput. Typical applications include industrial control, legacy M68k embedded controllers, avionics retrofits, telecommunications line cards, point-of-sale terminals, and VME/cPCI single-board computers that maintain a 68k software base. The 3.3 V supply and high pin-count TBGA make it a drop-in part for existing 68060 board designs that do not require the on-die FPU. When designing with the MC68EC060ZU75, pay attention to TBGA PCB layout - the 1.27 mm ball pitch demands four or more routing layers with microvia technology to escape the inner ball rows. Provide robust 3.3 V decoupling, and verify that any heatsink thermal solution accommodates the 31x31 mm package footprint. This page synthesises distributor pricing, same-package drop-in alternatives (including same-speed/lower-speed 68060 variants), and practical layout guidance not found in the manufacturer datasheet alone.

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MC68EN302AG20BT - 20MHz Ethernet 68K MPU, 144-LQFP | NXP
MC68EN302AG20BT

MC68EN302AG20BT - 20MHz Ethernet 68K MPU, 144-LQFP | NXP

The NXP Semiconductors MC68EN302AG20BT is a multi-channel communications processor (also known as MC68EN302 or "EN302") based on the M68000 microprocessor core, integrating three serial communications channels (SCC) plus a dedicated 10 Mbps Ethernet channel compliant with IEEE 802.3. It is housed in a 144-pin LQFP (20x20 mm) package and operates at 20 MHz, with 1 core on an 8/16-bit external data bus. An embedded microprocessor (MPU) is an integrated processor designed to be the central computing element of an embedded system, combining a CPU, on-chip peripherals, and memory control in a single device. Within the broader hierarchy, the MC68EN302 sits in the sub-family of integrated communications processors, descended from the Motorola/Freescale 683xx family of M68K CPUs - a product lineage that evolved from the MC68000 microprocessor introduced in 1979. The device is intended for embedded networking equipment where deterministic serial communications, on-chip Ethernet MAC, and low BOM cost outweigh raw compute throughput. Key features include an M68000-family CPU core running at 20 MHz, three independent SCC serial channels (usable for UART, HDLC, BISYNC, transparent modes), a separate Ethernet channel with full IEEE 802.3 MAC support and on-chip transmit/receive descriptors that offload bus bandwidth, on-chip DRAM controller, timers, parallel I/O, and interrupt controller. The Ethernet channel supports up to 10 Mbps data rates and uses the "68302" style programming model familiar to legacy firmware developers. Architecturally, the EN302 separates the CPU-side system bus from the peripheral-side bus, so descriptor-based DMA engines move packet data between the Ethernet channel and system memory without CPU intervention. This dual-bus design is critical for sustaining 10 Mbps line-rate throughput while leaving CPU cycles available for protocol processing (TCP/IP stack, PPP, or proprietary industrial protocols) running from external memory. Typical applications include industrial Ethernet routers, ISDN terminal adapters, legacy serial-to-Ethernet protocol converters, factory automation gateways, point-of-sale terminals, and telecom access equipment. The on-chip Ethernet MAC plus multi-protocol SCCs make it a single-chip solution for designs that previously required a discrete CPU plus external Ethernet controller plus UART/HDLC ASIC. When designing with this part, verify that firmware is rebuilt against the 68302 programming model and that the BSD-style Ethernet drivers target the on-chip descriptor ring interface. Supply voltage, junction temperature, and DRAM controller timing parameters not explicitly listed in this product page should be confirmed against the manufacturer datasheet before board bring-up. This page synthesizes distributor stock data, key parametric differences versus other M68K members, and practical design considerations specific to the EN302 variant - information not aggregated on any single manufacturer or distributor product page.

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