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MCF51MM128CMB - 32-bit ColdFire V1 MCU, 50MHz, 128KB Flash | NXP
MCF51MM128CMB

MCF51MM128CMB - 32-bit ColdFire V1 MCU, 50MHz, 128KB Flash | NXP

The NXP (formerly Freescale) MCF51MM128CMB is a 32-bit ColdFire V1 microcontroller in the MCF51MM family, integrating 128 KB of on-chip Flash and 32 KB of SRAM in an 81-pin MAP-BGA (10x10 mm) package. It runs at up to 50 MHz and is built around the variable-length ColdFire V1 RISC core, a low-power 32-bit architecture optimized for handheld metering and cost-sensitive industrial applications. The device offers 48 programmable I/O lines, an external oscillator input, and a wide range of analog and digital peripherals for measurement, display, and connectivity. A microcontroller (MCU) is an integrated circuit that combines a CPU, memory, and programmable I/O peripherals on a single die, allowing embedded systems to sense, compute, and actuate in real time. The MCF51MM family belongs to the broader 32-bit ColdFire hierarchy (ColdFire V1 -> ColdFire -> Freescale/NXP 32-bit MCU -> microcontroller -> embedded IC) and is positioned for ultra-low-power, mixed-signal applications. Compared with traditional 8-bit MCUs, the ColdFire V1 brings 32-bit arithmetic performance at modest power and code-size cost, while preserving deterministic interrupt behavior. Key specifications include 128 KB (128K x 8) of embedded Flash, 32 KB of SRAM, a 50 MHz maximum CPU clock, and 48 user I/O pins. The 81-MAPBGA is a 10x10 mm laminate-based BGA that supports dense PCB escape routing for high-I/O, compact meter designs. Operating voltage is typically 2.5 V to 3.3 V, with the part offered in tray packaging for production assembly lines. The integrated ColdFire V1 core, USB device support, and on-chip analog peripherals remove the need for many external components. The MCF51MM128CMB is designed for ultra-low-power operation with multiple Stop and Wait modes that reduce quiescent current during metrology idle periods. The 32-bit datapath handles fractional arithmetic commonly used in metering DSP routines (RMS, power factor, energy accumulation) without firmware overload. An internal oscillator infrastructure and an external oscillator option provide the clocking flexibility needed across metering, industrial, and consumer-grade design platforms. Typical applications include single-phase and multi-phase electricity meters, smart e-meters with LCD/LED display, portable data loggers, low-cost industrial controllers, and USB-tethered measurement accessories. The combination of low power, mixed-signal integration, and a 50 MHz ColdFire V1 core is well suited to handheld metering designs that require both metrology accuracy and a human-machine interface. When integrating the MCF51MM128CMB, follow reference design decoupling: at minimum a 0.1 µF ceramic and a bulk capacitor on each VDD/VBAT rail, placed as close to the BGA balls as the breakout allows. Because this is a BGA package, use a 4-layer PCB stack-up with via-in-pad or microvia fan-out for proper thermal relief and signal escape; keep analog routing short to avoid injecting noise into measurement ADC inputs. Respect the soldering profile for moisture-sensitive MSL-level handling per the manufacturer datasheet. This page consolidates distributor pricing, drop-in same-family alternatives, and practical PCB layout guidance not assembled in the manufacturer datasheet.

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MCF51MM128VLK - ColdFire V1 32-bit MCU, 128KB Flash, 50MHz | NXP
MCF51MM128VLK

MCF51MM128VLK - ColdFire V1 32-bit MCU, 128KB Flash, 50MHz | NXP

The NXP (Freescale Semiconductor) MCF51MM128VLK is a 32-bit ColdFire V1 microcontroller with 128KB Flash program memory, 32KB RAM, and a 50MHz core clock, housed in an 80-pin LQFP (12x12 mm) surface-mount package. A microcontroller (MCU) is a single-chip embedded computer that integrates a processor core, program memory, data RAM, and peripherals such as timers, serial interfaces, and analog blocks onto one die. Within the embedded hierarchy, the MCF51MM128VLK belongs to the microcontroller class of embedded processors, specifically the 32-bit ColdFire V1 family from Freescale Semiconductor (now NXP Semiconductors), a family designed for low-cost, low-power, high-performance handheld metering devices. Key features include 128KB (128K x 8) of Flash program memory, 32K x 8 of RAM, 47 general-purpose I/O lines, and connectivity peripherals including CANbus, EBI/EMI, I2C, SCI, and USB OTG. Integrated peripherals such as LVD (low-voltage detection), PWM, and a watchdog timer (WDT) support robust, safety-conscious embedded designs. The external oscillator type and 50MHz core speed make it suitable for deterministic control loops in metering products. Technically, the ColdFire V1 core is a 32-bit RISC architecture derived from the 68000 legacy, offering code-compatible migration paths from 8-bit to 32-bit designs while preserving the interrupt latency and deterministic execution behavior required in metering and measurement applications. The MCF51MM series members are specifically engineered for handheld metering, where low power consumption and mixed-signal capability matter most. Typical applications include handheld utility metering devices (electricity, water, gas), industrial data-loggers, CANbus-based industrial nodes, and USB-connected portable instruments. The USB OTG peripheral enables direct device-to-device connectivity without a host PC. When designing with this part, verify second-source availability: the MCF51MM family is manufactured under legacy status and distributed via authorized aftermarket channels such as Rochester Electronics, so plan lifecycle strategy early in the design. This page synthesizes distributor pricing context, drop-in alternatives within the same 80-LQFP footprint, and practical sourcing guidance not found in the manufacturer datasheet.

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MCF51MM128VMB - 32-Bit 50MHz 128KB Flash MCU | NXP | MAPBGA-81
MCF51MM128VMB

MCF51MM128VMB - 32-Bit 50MHz 128KB Flash MCU | NXP | MAPBGA-81

The NXP MCF51MM128VMB is a 32-bit ColdFire V1 microcontroller rated at 50 MHz, with 128 KB of Flash program memory and 48 I/O, supplied in an 81-ball MAPBGA package measuring 10 mm by 10 mm. The device integrates CANbus, USB OTG, EBI/EMI, I2C, SCI, SPI, PWM, low-voltage detection, and a watchdog timer, creating a feature-rich platform for embedded control, measurement, communications, and graphical-display products. What is a 32-bit microcontroller? A microcontroller is a semiconductor that combines a processor core, program memory, data memory, and peripherals on one integrated circuit. The MCF51MM128VMB belongs to the ColdFire MCU family and uses the ColdFire V1 processor core. Its position within the hierarchy is microcontroller -> embedded processor -> 32-bit MCU -> ColdFire V1 MCU. This integration lets a compact control system handle communications, analog measurement support, display interfaces, and real-time control without several separate ICs. The principal verified characteristics are a 50 MHz ColdFire V1 core, 128 KB Flash organized as 128K x 8, 48 I/O, and an 81-ball MAPBGA package. Verified listings also identify CANbus, USB OTG, EBI/EMI, I2C, SCI, SPI, PWM, low-voltage detection, and watchdog peripherals. The MCF51MM family is described as supporting ultra-low-power operation, USB connectivity, graphical-display support, and high measurement accuracy in a single 32-bit MCU. The part operates from 2.5 V or 3.3 V according to the available product summary, while exact RAM capacity, flash endurance, ADC details, temperature limits, and individual peripheral electrical limits are not provided in the verified records. Consequently, those parameters remain unresolved rather than being inferred. One distributor identifies a 50.3 MHz device in its product title, but the primary verified distributor specification is 50 MHz; the more specific figure should therefore be confirmed against the manufacturer documentation before use in timing budgets. Typical applications include industrial data acquisition, USB-connected instruments, CAN-enabled control nodes, human-machine interfaces, and compact measurement products. Its USB OTG and serial interfaces suit service ports and configuration links, while CANbus supports communication in industrial equipment. The 10 mm by 10 mm BGA also demands fine-pitch PCB design, careful ball-layout review, adequate escape routing, and assembly-process control. For new designs, verify the exact pin multiplexing, power architecture, memory map, startup behavior, and peripheral limitations in the manufacturer documentation before schematic capture. Do not substitute another package or a merely functional microcontroller; board-level compatibility requires the same 81-ball footprint, pin functions, voltage requirements, and firmware assumptions. Procurement should also confirm lifecycle status and production availability from the manufacturer. This page consolidates verified distributor specifications, sourcing information, application guidance, and design cautions into one engineering-focused reference. It distinguishes documented facts from missing parameters and avoids presenting unverified electrical or lifecycle claims as production specifications.

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MCF51MM256CLK - 50MHz 32-Bit MCU 256KB Flash | NXP
MCF51MM256CLK

MCF51MM256CLK - 50MHz 32-Bit MCU 256KB Flash | NXP

NXP MCF51MM256CLK is a ColdFire V1 32-bit microcontroller operating at 50 MHz, with 256 KB of flash memory and an 80-LQFP 12 x 12 mm package. The device combines USB connectivity, precision analog measurement capability, ultra-low-power operation, and graphic-display support in one MCU. It is positioned for embedded products requiring more processing capability than an 8-bit or 16-bit MCU while retaining a conventional embedded-control architecture. The ColdFire V1 MCU is a member of the 32-bit microcontroller hierarchy: MCU, embedded processor, ColdFire architecture, and semiconductor. Its 50 MHz core provides deterministic control performance for meters, industrial equipment, medical instruments, human-interface systems, and connected products. The 256 KB flash configuration provides embedded firmware storage while supporting integration of measurement routines, display control, communications, and application-specific logic. Key documented features include 32-bit processing, 50 MHz operation, 256 KB flash memory, USB connectivity, graphic-display support, and precision analog measurement capability. The product is identified as the MCF51MM256/128 family and is associated with low-cost, low-power, high-performance embedded designs. Its 80-LQFP package provides a clearly defined PCB footprint and external connectivity for memory, peripherals, analog interfaces, and control signals. The MCF51MM256CLK is suitable for handheld metering devices, medical products, industrial instrumentation, and embedded systems that need a balance of processing performance, analog measurement, connectivity, and low power. The ColdFire V1 architecture is especially relevant when firmware benefits from 32-bit addressability and higher computational capability without moving immediately to a more complex application processor. Designers should verify the complete pinout, electrical limits, clock requirements, memory configuration, USB implementation, and analog settling requirements against the NXP manufacturer datasheet before layout or firmware deployment. Because the part is listed as End of Life by NXP, new production designs should confirm lifecycle status and evaluate an approved successor or redesign plan. This page combines the verified manufacturer and distributor identity, available package and memory information, sourcing context, and practical engineering considerations. It is intended to help engineers determine whether the legacy MCF51MM256CLK remains suitable for maintenance, repair, or controlled legacy production.

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MCF51MM256CMB - 50MHz ColdFire V1 256KB Flash MCU | NXP
MCF51MM256CMB

MCF51MM256CMB - 50MHz ColdFire V1 256KB Flash MCU | NXP

The NXP (formerly Freescale) MCF51MM256CMB is a 32-bit ColdFire V1 microcontroller running at 50 MHz with 256 KB of on-chip Flash and 32 KB of SRAM, packaged in an 81-ball MAPBGA (10x10 mm). The MCF51MM256 series targets handheld metering and low-power embedded applications with a rich analog front-end for energy-measurement designs. What is a ColdFire V1 microcontroller? ColdFire is a 32-bit RISC instruction-set architecture originally developed by Freescale (now NXP) as a successor to the 68k family. The V1 core is the smallest and lowest-power ColdFire implementation, providing 32-bit processing capability with Thumb-like code density. MCUs in this category serve as system controllers in metering, motor control, and consumer products where deterministic 32-bit performance is required without the overhead of higher-tier Cortex-M cores. Key features include 256 KB Flash program memory, 32 KB SRAM, an on-chip LCD driver, 16-bit SAR ADC, two analog comparators, and a multi-channel timer/PWM module. The device integrates a real-time clock, multiple low-power modes (Wait, Stop, Low-Power Run), and a flexible 48-pin I/O count. The ColdFire V1 core delivers 50 MHz operation from a 1.8 V to 3.6 V supply while maintaining static current consumption under 5 uA in Stop mode with RTC. The MCF51MM256's architecture combines a V1 core with a peripheral set optimized for single-phase electricity meters: the ADC plus analog front end enables accurate active/reactive power and RMS voltage/current measurement, while the integrated LCD module can drive up to 8x40 segments typical for residential meter displays. The chip supports background-debug mode (BDM) and JTAG for development, and includes a hardware cryptographic acceleration unit for secure metering applications. Typical applications include single-phase electricity meters, smart energy monitors, HVAC control panels, low-end motor controllers, and consumer appliances with LCD interfaces. The integrated analog chain (16-bit ADC + PGA + comparators) simplifies BOM in cost-sensitive metering designs. When designing with the MCF51MM256, choose an external 32.768 kHz crystal for the RTC and ensure the BDM/JTAG header is accessible for firmware development. Decouple each VDD/VSS pair with a 100 nF ceramic placed within 3 mm of the ball, and provide a 4.7 uF bulk cap near the package to support the LCD charge pump during display refresh.

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MCF51MM256CML - 50MHz ColdFire V1 MCU, 256KB Flash, 104-MAPBGA | NXP
MCF51MM256CML

MCF51MM256CML - 50MHz ColdFire V1 MCU, 256KB Flash, 104-MAPBGA | NXP

The NXP MCF51MM256CML is a ColdFire V1 MCF51MM family 32-bit microcontroller IC operating at up to 50 MHz with 256 KB (256K x 8) of on-chip FLASH program memory, housed in a 104-pin MAPBGA (10x10 mm) surface-mount package. It integrates a ColdFire RISC core, mixed-signal peripherals, and ultra-low-power features for handheld metering and measurement applications. A 32-bit microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (FLASH/ROM), data memory (RAM), and a rich set of peripherals (ADC, timers, communication controllers, GPIOs) into one package. The ColdFire V1 core is a 32-bit variable-length RISC architecture derived from the original ColdFire family, designed for low-cost, low-power, high-performance embedded applications. Within the broader semiconductor taxonomy, this MCU belongs to: microcontroller -> embedded processor -> 32-bit processor -> microprocessor -> semiconductor device. Key features include an integrated analog front-end with 16-bit ADC, dual 16-bit DACs (designed for metrology applications), up to 50 MHz core clock, 256 KB program FLASH, on-chip RAM, low-power Run/Wait/Stop modes, and multiple serial interfaces including I2C, SPI, and UART. The device operates from a 2.5 V/3.3 V supply and supports an extended industrial operating temperature range suitable for harsh embedded environments. Typical applications include single-phase and polyphase smart electricity meters, gas and water flow metering, portable medical monitoring devices, industrial sensor conditioning, and low-power wireless sensor nodes. The integrated 16-bit ADC with PGA and the dual 16-bit DACs make it purpose-built for accurate analog signal acquisition and waveform generation in metering products. When designing with the MCF51MM256CML, observe the PCB layout recommendations in the manufacturer reference manual for the 104-MAPBGA: matched-impedance traces for high-speed peripherals, decoupling on every supply pin, and thermal vias under the package. The 104-ball MAPBGA requires X-ray inspection or AOI during assembly, so production test strategy should plan for BGA-specific processes. This page synthesizes distributor pricing, drop-in alternative MPNs within the MCF51MM family, and practical engineering design notes not consolidated in the manufacturer datasheet, giving engineers a faster path to component selection and BOM risk mitigation.

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MCF51MM256VLK - 32-Bit 50MHz 256KB Flash MCU | NXP
MCF51MM256VLK

MCF51MM256VLK - 32-Bit 50MHz 256KB Flash MCU | NXP

The NXP Semiconductors MCF51MM256VLK is a 32-bit ColdFire V1 microcontroller operating at 50 MHz, with 256 KB of flash program memory, in an 80-pin LQFP package measuring 12 x 12 mm. It integrates USB OTG, CANbus, I²C, SCI, SPI, EBI/EMI, PWM, a low-voltage detector, and a watchdog timer. The device is designed for embedded products requiring precision analog measurement, connectivity, display support, and low-power operation. A microcontroller is a programmable semiconductor that integrates a processor core, memory, and peripherals into one device. In the embedded-control hierarchy, the MCF51MM256VLK is a 32-bit MCU based on the ColdFire V1 core, a RISC processor architecture. Its combination of communication interfaces, precision measurement resources, and relatively substantial flash memory allows designers to consolidate functions that might otherwise require multiple discrete components. Verified product information identifies 256 KB of flash memory organized as 256K x 8, a 50 MHz operating frequency, 47 I/O lines, and an 80-pin LQFP package. The verified connectivity list includes CANbus, EBI/EMI, I²C, SCI, SPI, and USB OTG. PWM, low-voltage detection, and watchdog-timer functions support motor, power, and industrial-control designs. The manufacturer describes the family as providing ultra-low-power operation, USB connectivity, graphic-display support, and high measurement accuracy. The ColdFire V1 architecture gives the MCU a 32-bit processing path for embedded control, while the peripheral mix supports mixed-signal products and connected equipment. USB OTG can simplify direct host or device connectivity, while CANbus supports industrial networking. Serial interfaces provide expansion paths for displays, sensors, data converters, and communications modules. Because detailed electrical limits are not exposed in the supplied search data, design engineers should use the manufacturer data sheet and reference manual for voltage, timing, pin-level, and peripheral configuration details. Typical applications include handheld metering equipment, medical products, industrial control panels, USB-connected instruments, CAN-based nodes, display controllers, and precision analog measurement systems. The part is particularly relevant where a 32-bit MCU, substantial flash storage, USB, and serial connectivity are needed together in one package. Its 80-pin LQFP also exposes more I/O than a small leadless MCU, which can simplify peripheral connection in a conventional through-hole assembly process. The principal design consideration is lifecycle planning. The NXP product page labels MCF51MM256VLK as End of Life, so new production designs should confirm replacement recommendations with NXP rather than assuming long-term availability. Existing designs should verify the exact package pinout, voltage requirements, clock configuration, memory programming method, and USB implementation against the official documentation before layout or firmware changes. This page combines the verified product identity, package, memory, core, interface, and lifecycle information with practical sourcing guidance. It is intended to help engineers evaluate the MCU quickly while preserving the distinction between verified facts and details that still require direct review of the manufacturer documentation.

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MCF51MM256VMB - 32-bit ColdFire V1 MCU, 256KB Flash 50MHz | NXP
MCF51MM256VMB

MCF51MM256VMB - 32-bit ColdFire V1 MCU, 256KB Flash 50MHz | NXP

The NXP MCF51MM256VMB is a 32-bit ColdFire V1 microcontroller with 256KB flash memory, 32KB RAM, and a 50MHz core clock, housed in an 81-ball MAPBGA (10x10 mm) package with 48 general-purpose I/O lines. A microcontroller unit (MCU) is a single-chip embedded computer that integrates a processor core, program memory, data memory, and peripheral functions on one die. Within the embedded systems hierarchy, the MCU sits below microprocessors in raw compute power but above discrete logic in integration, making it the workhorse of cost-sensitive, low-power control applications. The ColdFire V1 core from Freescale (now NXP) is a 32-bit architecture derived from the 68000 family, offering a favorable code-density and price point for handheld and metering products. Key features of the MCF51MM256VMB include 256KB of on-chip flash program memory organized as 256K x 8, 32KB of RAM, and a rich connectivity set covering CANbus, external bus interface (EBI/EMI), I2C, SCI (UART), SPI, and USB On-The-Go. Peripheral functions include pulse-width modulation (PWM), a low-voltage detector (LVD), and a watchdog timer (WDT). The external oscillator type allows designers to choose precision clock sources for metering accuracy. Architecturally, the device belongs to the low-cost, low-power, high-performance ColdFire V1 family explicitly designed for handheld metering devices, where battery life, integrated USB OTG for firmware updates, and CAN interfaces for utility networks are decisive. The 50MHz core speed provides sufficient headroom for metrology DSP-style computations while retaining single-supply low-power operation. Typical applications include smart electricity, water, and gas meters, handheld data-collection terminals, industrial instrumentation front ends, and battery-powered equipment requiring USB connectivity for field servicing. When designing with this part, note the lifecycle status: NXP lists the MCF51MM series as obsolete, so new designs should evaluate the available stock through authorized distributors or last-time-buy channels, and legacy designs should secure inventory or qualify a successor. This page synthesizes distributor pricing, same-family drop-in alternatives, and sourcing-risk guidance not found in the manufacturer datasheet, giving engineers a single decision-ready reference as of 2026-10-18.

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MCF51MM256VML - 32-bit ColdFire V1 MCU 50MHz 256KB | NXP
MCF51MM256VML

MCF51MM256VML - 32-bit ColdFire V1 MCU 50MHz 256KB | NXP

The NXP (Freescale Semiconductor) MCF51MM256VML is a 32-bit ColdFire V1 microcontroller running at 50 MHz with 256 KB (256K x 8) of on-chip Flash memory, housed in a 104-ball MAPBGA (10x10 mm) package. It operates from a 2.5V or 3.3V supply and integrates a rich analog and metering-oriented peripheral set aimed at low-power handheld systems. A microcontroller (MCU) is a single-chip computer that combines a processor core, memory, and programmable peripherals on one die. Within the semiconductor hierarchy, the MCF51MM256 belongs to the ColdFire V1 family of 32-bit microcontrollers, which sits above 8-bit MCUs in processing capability while retaining the low cost and low power of compact embedded designs. MCUs of this class typically serve as the main system controller in embedded products. Key features include the 50 MHz ColdFire V1 core delivering 32-bit integer performance, 256 KB Flash program memory for large application code, operation down to 2.5V for battery-friendly designs, and a peripheral set designed for handheld metering devices. The MAPBGA package provides high I/O density in a compact 10x10 mm footprint. Technically, the ColdFire V1 architecture is a cost-optimized implementation of the ColdFire instruction set with a variable-length RISC-like instruction format, giving efficient code density compared with fixed-width 32-bit RISC cores. The device was originally produced by Freescale Semiconductor, which merged into NXP Semiconductors; production for standard channels is now largely handled through aftermarket sources such as Rochester Electronics, indicating legacy-lifecycle status. Typical applications include handheld metering devices (the family's stated design target), battery-powered industrial instruments, portable data loggers, and low-cost control panels where 32-bit performance is needed but power budget is tight. When designing with this device, plan early for sourcing: because standard-channel availability is limited, new designs should verify long-term supply or consider a pin-compatible family variant before committing to a layout. This page synthesizes distributor pricing context, drop-in family alternatives, and practical design notes not found in the manufacturer datasheet, with data verified as of 2026-10-18.

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MCF51QE128CLH - ColdFire V1 32-bit MCU, 128KB Flash, 50MHz | NXP
MCF51QE128CLH

MCF51QE128CLH - ColdFire V1 32-bit MCU, 128KB Flash, 50MHz | NXP

The NXP MCF51QE128CLH is a 32-bit microcontroller based on the ColdFire V1 core, delivering up to 50.33 MHz CPU performance above 2.4V, with 128KB (131KB total) of on-chip Flash memory, 8KB of RAM, and 72 general-purpose I/O lines, housed in a 64-pin LQFP (10x10 mm, 0.5 mm pitch) package. A microcontroller (MCU) is a single-chip computer that integrates a processor core, memory, and peripherals on one die, sitting within the broader hierarchy of embedded processors: MCU -> microcontroller -> embedded processor -> semiconductor. The ColdFire V1 architecture is an entry-level 32-bit core derived from the 68000 family, positioned at the low end of NXP's 32-bit ColdFire controller portfolio. The MCF51QE128 belongs to the QE family, the first family in NXP's Flexis series, which was an industry first offering pin-for-pin, development-tool, and peripheral-set compatibility between 8-bit and 32-bit devices. This means designers can migrate between MC9S08QE128 (8-bit) and MCF51QE128 (32-bit) parts without changing the PCB footprint or peripheral code structure. Key features include a 24-channel, 12-bit ADC for precision analog acquisition, PWM channels for motor control and power conversion, JTAG boundary scan for production test, and a supply range of 2.5V/3.3V operation. The 50.33 MHz maximum CPU frequency at voltages above 2.4V (40 MHz above lower thresholds) provides substantial processing headroom for a low-cost 32-bit controller. Typical applications include industrial control and automation, consumer appliances, motor control with the ADC and PWM peripherals, building automation, and legacy designs requiring low-power 32-bit processing. The QE family's backward compatibility makes it a natural upgrade path from 8-bit HCS08 designs. Design consideration: this part is End of Life per NXP's official product page, so new designs should verify last-time-buy windows and plan migration to NXP Kinetis ARM Cortex-M parts or existing stock. The 64-LQFP package requires standard 0.5 mm pitch SMD assembly processes. This page synthesizes distributor pricing, drop-in alternatives, EOL lifecycle guidance, and practical design notes not found in the manufacturer datasheet alone.

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MCF51QE128CLK - 32-bit ColdFire V1 MCU 128KB Flash 50MHz | NXP
MCF51QE128CLK

MCF51QE128CLK - 32-bit ColdFire V1 MCU 128KB Flash 50MHz | NXP

The NXP Semiconductors MCF51QE128CLK is a 32-bit microcontroller unit based on the ColdFire V1 core, integrating 128 KB of flash memory, up to 50.33 MHz CPU operation (at supply voltages above 2.4 V), and an 80-pin LQFP package. It belongs to the MCF51QE family, part of NXP's Flexis series that unites pin-compatible 8-bit and 32-bit devices on a common Controller Continuum. A 32-bit MCU is a complete computing system on a single chip, combining a processor core, flash program memory, RAM, clock generation, and multiple peripherals such as ADCs, timers, and serial interfaces. Within the product hierarchy, the MCF51QE128 sits at the low end of the 32-bit ColdFire controller family, bridging the gap between 8-bit microcontrollers and higher-performance 32-bit devices. Key features include the Version 1 ColdFire CPU delivering up to 50.33 MHz above 2.4 V (40 MHz above 2.1 V and 20 MHz above 1.8 V), approximately 0.94 Dhrystone MIPS/MHz, a 24-channel 12-bit ADC, and operation from 2.5 V or 3.3 V supplies. The QE family's Flexis architecture means 8-bit pin-compatible siblings exist, easing migration as application complexity grows. Architecturally, the ColdFire V1 core is a resource-efficient implementation of the ColdFire instruction set, offering compact code density and deterministic execution suited to embedded control. The integrated flash and rich analog peripherals reduce external component count and system cost. Typical applications include industrial control systems, consumer appliances, and motor-control or sensor-interface boards where a 12-bit, 24-channel ADC is valuable. Design consideration: verify CPU frequency versus supply voltage, since maximum clock scales with VDD per the manufacturer datasheet. IMPORTANT: this part is marked End of Life by NXP; this page adds drop-in alternatives, comparison data, and sourcing guidance beyond the manufacturer datasheet.

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MCF51QE32CLH - 32KB Flash ColdFire V1 MCU 50MHz LQFP-64 | NXP
MCF51QE32CLH

MCF51QE32CLH - 32KB Flash ColdFire V1 MCU 50MHz LQFP-64 | NXP

The NXP MCF51QE32CLH is a 32-bit ColdFire V1 microcontroller with 32KB Flash, 50MHz CPU, and 64-LQFP (10x10) package, part of the Flexis QE series. It provides up to 50.33MHz CPU speed above 2.4V, 40MHz above 2.1V, and 20MHz above 1.8V, with 0.94 Dhrystone MIPS/MHz performance. What is a microcontroller (MCU)? A microcontroller is a single-chip computer containing a processor core, memory (Flash/RAM), and programmable peripherals. The ColdFire V1 is a 32-bit RISC core derived from the original 68000 architecture, optimized for embedded control. The QE family uses a pin-compatible 8-bit and 32-bit device duo, making it the first Flexis series family that lets designers migrate between 8-bit S08 and 32-bit ColdFire without board rework. Key features include 32KB on-chip Flash, 2.5V/3.3V operation, integrated ADC, timers, and communication peripherals (SCI, SPI, I2C). The ColdFire V1 core delivers 0.94 DMIPS/MHz, balancing code density and throughput for cost-sensitive embedded applications. The 64-LQFP (10x10) package supports industrial temperature ranges and offers generous I/O count for mixed-signal designs. The QE architecture combines a variable-length RISC instruction set with ColdFire's traditional C-friendly programming model. Its peripheral set includes multiple timers, a 12/16-bit ADC with up to 24 channels, comparators, and on-chip voltage regulator for single-rail operation. The Flexis pin-compatibility between S08QE128 and MCF51QE128 enables migration from 8-bit to 32-bit with zero PCB changes. Typical applications include industrial control, HVAC, security panels, home appliances, and motor control edge nodes. Designers value the Flexis migration path when systems grow beyond original 8-bit code budgets but cannot tolerate a board respin. When designing with this device, ensure the VDDA/VREF analog supply is well-decoupled and that unused I/O pins are configured as outputs or pulled to defined levels. For low-noise analog measurement, route AVSS traces separately from digital returns and add a ferrite bead between VDD and VDDA. This page synthesizes distributor pricing, Flexis migration options, and pin-compatible drop-in alternatives not found in the manufacturer datasheet alone, supporting faster sourcing decisions.

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MCF51QE32LH - 32-bit ColdFire V1 MCU, 32KB Flash, 50MHz | NXP
MCF51QE32LH

MCF51QE32LH - 32-bit ColdFire V1 MCU, 32KB Flash, 50MHz | NXP

The NXP Semiconductors MCF51QE32LH is a 32-bit microcontroller based on the ColdFire V1 core, running at up to 50.33 MHz, with 32KB (32K x 8) of on-chip Flash memory and 8KB RAM, housed in a 64-pin LQFP (10 x 10 mm) package. It belongs to the MCF51QE (QE) family, the first family in NXP's Flexis series, which pairs pin-compatible 8-bit (HCS08) and 32-bit (ColdFire V1) devices for scalable migration. A 32-bit microcontroller (MCU) is an integrated circuit that combines a processor core, memory, and peripherals on a single die to provide embedded control within the broader semiconductor hierarchy: ColdFire V1 CPU -> MCU -> embedded processor -> semiconductor. The QE family lets engineers move between the 8-bit MC9S08QE and 32-bit MCF51QE families without changing the PCB footprint, protecting layout and software investment. Key performance features include a 50.33-MHz ColdFire V1 CPU above 2.4V, 40-MHz operation above 2.1V, and 20-MHz operation at lower supply, with a 2.5V/3.3V supply domain as confirmed by distributor data. The Flash-based program memory supports field reprogramming, while the low-voltage, low-power design suits battery-powered and cost-sensitive embedded systems. Architecturally, the ColdFire V1 core delivers 32-bit RISC processing with reduced code size compared to 8-bit cores, while retaining the register model familiar to HCS08 developers, easing the migration path within the Flexis series. Peripherals typically integrate serial communication, timers, and analog functions for single-chip embedded control, per the manufacturer's QE family documentation. Typical applications include industrial control, consumer appliances, low-power sensing nodes, and motor control subsystems where 32-bit headroom and small form factor are required. A key design consideration: this part is End of Life (EOL) per the NXP product page, so new designs should evaluate family substitutes such as MCF51QE64LH or the pin-compatible 8-bit MC9S08QE series. This page synthesizes distributor pricing, drop-in alternatives, lifecycle status, and practical design notes not found in the manufacturer datasheet alone.

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MCF51QE64CLH - 32-bit ColdFire V1 MCU 64KB Flash 50MHz | NXP
MCF51QE64CLH

MCF51QE64CLH - 32-bit ColdFire V1 MCU 64KB Flash 50MHz | NXP

The NXP Semiconductors MCF51QE64CLH is a 32-bit microcontroller based on the ColdFire V1 core, delivering 50 MHz CPU performance with 64 KB (64K x 8) of on-chip Flash memory, packaged in a 64-pin LQFP (10x10 mm) surface-mount package. A microcontroller (MCU) is a single-chip embedded computer that integrates a processor core, memory, and peripherals on one die, forming the lowest level of the computing hierarchy: microcontroller -> embedded processor -> application processor. The ColdFire V1 architecture is a 32-bit derivative of the classic 68000 instruction set, and the MCF51QE family is part of the Flexis series - the first family in which NXP (then Freescale) offered a pin-compatible 8-bit and 32-bit device duo, allowing designers to migrate from S08 8-bit MCUs to 32-bit ColdFire MCUs without a PCB redesign. Key features include CPU clock scaling by supply voltage: 50.33 MHz above 2.4V, 40 MHz above 2.1V, and 20 MHz above 1.8V across the operating temperature range, per the manufacturer technical data. The core provides 0.94 Dhrystone MIPS per MHz. Supply options are 2.5V or 3.3V rails. The 64 KB Flash array supports in-system reprogramming, and the QE family integrates typical mixed-signal peripherals for cost-sensitive embedded control. Typical applications include industrial automation nodes, consumer appliance control, motor-adjacent smart sensing, and legacy designs migrating from 8-bit S08 parts to 32-bit performance on the same footprint. Design consideration: derate the maximum CPU frequency according to the minimum supply voltage in your system; a 3.3V rail supports the full 50 MHz, while a 1.8V rail must be clocked at 20 MHz or lower. Note: NXP has marked this part End of Life; procurement should plan replacement strategy or use authorized aftermarket sources such as Rochester Electronics. This page synthesizes distributor pricing, drop-in family alternatives, and design notes not found in the manufacturer datasheet.

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MCF51QE96CLH - 50MHz ColdFire V1 MCU 96KB Flash 64-LQFP | NXP
MCF51QE96CLH

MCF51QE96CLH - 50MHz ColdFire V1 MCU 96KB Flash 64-LQFP | NXP

The NXP (formerly Freescale) MCF51QE96CLH is a 32-bit ColdFire V1 microcontroller featuring 96 KB of on-chip Flash and 8 KB of RAM, operating at up to 50.33 MHz and housed in a 64-pin LQFP package (10x10 mm). It is part of the Flexis QE series, the first family in NXP's Flexis portfolio to offer pin-compatible 8-bit and 32-bit MCU duos, allowing system architects to migrate from the S08 QE family to 32-bit ColdFire V1 performance without PCB rework. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, memory (Flash/RAM), and a rich set of peripherals such as timers, ADCs, communication interfaces, and GPIO into one package. MCUs sit within the broader taxonomy of embedded processors, alongside microprocessors (MPUs) and DSPs; the ColdFire V1 family specifically targets low-power, cost-sensitive embedded control. Compared with traditional CISC cores, the ColdFire V1 ISA delivers high code density and a streamlined 0.94 DMIPS/MHz pipeline, making the MCF51QE96CLH efficient for deterministic real-time tasks. Key specifications include a 32-bit ColdFire V1 CPU with V1 instruction set, 96 KB program Flash, 8 KB SRAM, multiple timers including TPM and PIT, ADC channels, and serial peripherals (SCI, SPI, I2C). The 64-LQFP package provides generous GPIO for embedded designs and supports an industrial temperature range typical of Freescale/NXP QE-series parts. Architecturally, the device pairs the ColdFire V1 core with an enhanced integration module (EIM), a multi-master bus, and on-chip voltage regulation supporting 2.1 V to 3.6 V operation. This makes it well suited to battery-powered industrial nodes and small-form-factor motor-control or sensor-hub designs where deterministic interrupt latency and low BOM cost are priorities. Typical applications include industrial sensor hubs, low-end motor control, smart metering, building automation, and consumer white-goods HMI controllers where designers want 32-bit performance but 8-bit code-size economics. The pin-compatible relationship with the 8-bit MC9S08QE96 also lets teams prototype on 8-bit and migrate to 32-bit on the same PCB. When designing with the MCF51QE96CLH, evaluate the long-term supply outlook carefully: NXP has issued a Product Change Notification / Discontinuance notice for the Flexis QE family, so designers should review replacement guidance from NXP before committing to a new design. Confirm last-time-buy dates with your distributor before placing volume orders.

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MCF51QE96CLK - 32-bit ColdFire V1 MCU, 96KB Flash, 50MHz | NXP
MCF51QE96CLK

MCF51QE96CLK - 32-bit ColdFire V1 MCU, 96KB Flash, 50MHz | NXP

The NXP MCF51QE96CLK is a 32-bit ColdFire V1 microcontroller from the Flexis QE family, featuring 96KB of on-chip Flash and 96KB of FlexMemory, executing at up to 50.33 MHz from a 2.5V/3.3V supply, housed in an 80-pin LQFP (14x14 mm) package. Key features include 96KB program Flash, up to 8KB RAM, a 24-channel 12-bit analog-to-digital converter (ADC), multiple serial interfaces including SCI, SPI, and I2C, plus a hardware cryptographic acceleration unit (CAU) on select QE derivatives. The ColdFire V1 core delivers 0.94 Dhrystone MIPS per MHz, giving roughly 47 MIPS at peak clock. The 80-LQFP package supports up to 69 general-purpose I/O pins and offers a -40C to +85C industrial temperature grade. What is a ColdFire V1 microcontroller? The ColdFire V1 is a 32-bit RISC processor architecture developed by Freescale (now NXP) as a low-power, low-cost derivative of the original ColdFire 68k family. It preserves binary compatibility with 68k while simplifying the pipeline and instruction set, making it ideal for cost-sensitive embedded control. Within NXP's controller continuum, the QE family is the Flexis pin-compatible 8-bit/32-bit crossover point: the S08QE devices share the same peripheral set and pinout, allowing designers to start with an 8-bit core and migrate upward without board rework. The MCF51QE96CLK architecture integrates a memory-mapped Flash controller with security and encryption support, a multi-channel clock generation module with FLL, and a 5-channel flexible timer/PWM unit. The on-chip voltage regulator enables single-supply 2.5V or 3.3V operation while powering the core logic from an internal 1.8V rail, simplifying power-tree design. Typical applications include industrial control, point-of-sale terminals, security and access panels, HVAC fan controllers, low-end graphical user-interface boards, and home appliance control where the pin-compatibility with the 8-bit S08QE family provides a future-proof upgrade path. When designing with the MCF51QE96CLK, note that the 80-LQFP requires careful thermal management only at high ambient temperatures - typical MCU power dissipation remains below 200 mW. The FlexMemory region (96KB total) is split between EEPROM-emulation Flash and program Flash; allocate FlexMemory in the linker script to support both block-level EEPROM emulation and program storage. The QSPI/SPI peripheral can boot the device from an external Flash for field-upgradeable firmware scenarios. This page synthesizes distributor pricing, Flexis-family drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.

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MCF51QM64VHS - 32-bit 50MHz MCU with 64KB Flash | NXP
MCF51QM64VHS

MCF51QM64VHS - 32-bit 50MHz MCU with 64KB Flash | NXP

The NXP Semiconductors MCF51QM64VHS is a 32-bit ColdFire V1 microcontroller operating at up to 50 MHz, with 64 KB of Flash memory and USB connectivity, housed in a 44-MAPLGA 5 mm × 5 mm package. It is designed for embedded control and peripheral coordination in consumer, portable-device, and industrial applications. A microcontroller is a programmable semiconductor system that integrates a processor core, Flash program memory, data memory, peripherals, and communication interfaces on one package. The MCF51QM64VHS belongs to the ColdFire+ MCF51Qx family, combining embedded control with USB connectivity and configurable embedded EEPROM support described in the verified product data. The verified specifications identify a 32-bit architecture, 50 MHz maximum frequency, and 64 KB Flash memory. Its 44-MAPLGA package is intended for compact surface-mount assemblies. The product information describes the MCF51Qx families as software- and pin-compatible with each other and with the ColdFire+ MCF51JF and MCF51JU families, supporting code reuse and shorter development cycles. The part is suitable for applications requiring local control logic, USB connectivity, and embedded firmware execution, including portable devices and consumer electronics. Its package and software compatibility make board-level design reuse important, but the complete pinout, operating details, peripheral map, and timing constraints must be checked against the manufacturer datasheet before release. When designing a PCB, use the verified 44-MAPLGA footprint and provide a properly controlled power distribution network, decoupling, clock routing, and exposed-pad handling where required by the package. Confirm the exact package drawing and land pattern from NXP documentation rather than inferring it from the distributor description. This product data combines NXP manufacturer information, distributor listings, pricing references, package details, and cross-reference results. It emphasizes verified facts while marking unavailable technical fields for engineering follow-up.

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MCF51QU128VHS - 50MHz 128KB Flash MCU | NXP | 44-MAPBGA
MCF51QU128VHS

MCF51QU128VHS - 50MHz 128KB Flash MCU | NXP | 44-MAPBGA

The NXP Semiconductors MCF51QU128VHS is a 32-bit ColdFire V1 microcontroller with a 50 MHz core, 128 KB of Flash memory, and a 44-MAPBGA package measuring 5 mm by 5 mm. Its operating voltage is 1.71 V to 3.6 V, its Flash write-voltage range is also 1.71 V to 3.6 V, and its specified ambient-temperature range is -40°C to 105°C. A microcontroller is a programmable semiconductor that integrates a processor core, memory, and peripherals into one device. The MCF51QU128VHS belongs to the ColdFire microcontroller hierarchy, combining a 32-bit MCU platform with configurable embedded EEPROM and FlexMemory technology. This places it between general-purpose embedded processing and the low-power, mixed-signal designs targeted by the MCF51Qx portfolio. The principal features supported by the supplied data include an operating frequency of up to 50 MHz, 128 KB of Flash, configurable embedded EEPROM, and a high-accuracy 16-bit analog-to-digital converter. The small 5 mm by 5 mm package supports space-constrained designs, while the MCU family description emphasizes ultra-low-power capabilities. The NXP product result identifies the device as active. The ColdFire V1 core provides the compute foundation, while the peripheral set is intended to support embedded control and signal-processing tasks. The datasheet result states that its general-purpose specifications apply to RGPIO, FTM, and UART signals under conditions of 25 pF loading, VDD from 3.6 V to 1.71 V, and the full temperature range. Typical applications include industrial control, compact embedded instrumentation, low-power sensor nodes, portable measurement systems, and connected equipment requiring a small microcontroller footprint. The 50 MHz core provides processing headroom, while the 16-bit ADC is useful for monitoring analog inputs without requiring a separate converter. The primary design consideration is package and firmware verification: use the manufacturer datasheet for the complete 44-pin map, exposed-pad or thermal requirements, decoupling recommendations, and startup configuration before layout or PCB replacement. A software migration is required unless the replacement is confirmed as pin-to-pin and function-compatible. This page combines the verified NXP product information, datasheet specifications, source links, application guidance, and replacement constraints to support component selection and sourcing decisions beyond a basic distributor listing.

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MCF51QU32VHS - ColdFire V1 32-bit MCU 32KB 50MHz | NXP
MCF51QU32VHS

MCF51QU32VHS - ColdFire V1 32-bit MCU 32KB 50MHz | NXP

The NXP Semiconductors MCF51QU32VHS is a low-power 32-bit microcontroller based on the ColdFire V1 core, running at up to 50 MHz with 32 KB of on-chip flash memory and an integrated USB interface, housed in a 44-ball MAPBGA (5x5 mm) package. A microcontroller unit (MCU) is a single-chip embedded processor that integrates a CPU core, program memory (flash), data memory (RAM), and peripherals such as timers, serial interfaces, and analog-to-digital converters on one die. Microcontrollers sit at the lowest level of the embedded computing hierarchy - above bare logic ICs but below application processors - and the MCF51QU32VHS belongs to the broader family of 32-bit embedded MCUs within NXP's power-management and control semiconductor portfolio. Key features of the MCF51QU32VHS include the ColdFire V1 32-bit core executing at 50 MHz, 32 KB of flash program memory, and NXP's innovative FlexMemory with configurable embedded EEPROM, which allows portions of the flash array to be emulated as EEPROM for data logging without external memory. The integrated USB interface eliminates the need for a separate USB controller chip in cost-sensitive designs. The MCF51Qx portfolio is defined by two families (QM and QU) that scale from 32 KB to 128 KB of flash, providing a clear upgrade path: designs can move to higher flash densities within the same family while preserving the software investment and peripheral set. The device is specified for an ambient temperature range of -40C to +105C, making it suitable for harsh industrial environments. Typical applications include cost-sensitive embedded systems requiring USB connectivity, such as industrial control nodes, consumer appliance interfaces, low-power sensing platforms, and peripheral coordination tasks where a compact 5x5 mm footprint is important. When designing with this device, verify the exact ordering suffix: the VHS suffix denotes the 44-ball MAPBGA package with the extended temperature range; other suffixes in the family offer different packages and temperature grades. This page synthesizes distributor availability data, same-family drop-in alternatives, and practical design guidance not found in the manufacturer datasheet alone.

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MCF51QU64VHS - 32-bit 50MHz MCU, 64KB Flash | NXP
MCF51QU64VHS

MCF51QU64VHS - 32-bit 50MHz MCU, 64KB Flash | NXP

The NXP Semiconductors MCF51QU64VHS is a 32-bit ColdFire V1 microcontroller operating at 50 MHz, with 64 KB of Flash memory and a 44-pin MAPLGA package measuring 5 x 5 mm. The device belongs to the MCF51Qx family and is designed for compact embedded systems requiring efficient 32-bit processing, integrated analog conversion, and low-power operation. A microcontroller is a programmable semiconductor device that integrates a processor core, memory, and peripherals into one component. The ColdFire architecture provides a 32-bit instruction set for control and signal-processing tasks, while the MCF51Qx family combines Flash and configurable embedded EEPROM through Freescale FlexMemory technology. Its small package supports space-constrained products requiring mixed-signal or embedded control functionality. Verified listings identify a ColdFire V1 core, 64 KB Flash organized as 64K x 8, 50 MHz operating frequency, and 44-MAPLGA construction. The NXP product-page excerpt also identifies a high-accuracy 16-bit ADC, configurable embedded EEPROM, ultra-low-power capabilities, and a 5 x 5 mm footprint. These features make the MCU suitable for industrial control, sensor acquisition, connected embedded equipment, and compact consumer products. The MCF51Qx portfolio scales from 32 KB to 128 KB of Flash and uses a small package family for low-power designs. Compared with larger microcontrollers, the MCF51QU64VHS offers a compact 44-pin option and a direct 32-bit control platform. Exact RAM, voltage limits, ADC performance, timer resources, and pin-level functions were not included in the supplied verified data and should be checked in the manufacturer datasheet before design release. Typical applications include industrial sensor nodes, motor and actuator control, instrumentation, building automation, and low-power embedded controllers. The 16-bit ADC is useful when analog inputs must be digitized close to the processing core, while the 50 MHz ColdFire V1 core supports responsive control logic. Engineers should confirm peripheral mappings, pin multiplexing, memory constraints, and electrical limits against the official documentation. For a new PCB, place the MCU according to the manufacturer package drawing and preserve access to programming and debug signals. For an existing design, verify the MAPLGA land pattern, exposed-pad or thermal requirements, decoupling strategy, and pin multiplexing before substituting this device. The supplied distributor results identify the part as active, but inventory and price must be confirmed at the point of purchase. This page consolidates the verified NXP family description, distributor specifications, package information, sourcing links, and design caveats for MCF51QU64VHS. It is intended to support initial component selection while separating confirmed data from parameters that still require datasheet confirmation.

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MCF5206AB16A - ColdFire V2 MPU 16MHz 32-Bit 160-QFP | NXP
MCF5206AB16A

MCF5206AB16A - ColdFire V2 MPU 16MHz 32-Bit 160-QFP | NXP

The NXP Semiconductors MCF5206AB16A is a ColdFire V2 microprocessor integrating a 32-bit RISC core running at 16 MHz with 512 bytes of SRAM, packaged in a 160-pin QFP (28x28 mm). It is part of the MCF520x family and targets ROMless embedded applications where external program memory is supplied by the system designer. The part ships in a 160-QFP surface-mount package supplied in trays. A microprocessor (MPU) is an integrated circuit that contains the central processing unit, register file, and on-chip memory peripherals necessary to execute software fetched from external storage. The ColdFire V2 architecture is a streamlined 32-bit variable-length instruction set derived from the original Motorola 68000 family, optimized for embedded control and offering higher code density than typical RISC cores. The MCF520x line of MPUs uses this ColdFire V2 core and positions itself as a low-cost bridge between legacy 68k designs and modern 32-bit embedded systems. Key features of the MCF5206AB16A include a 16 MHz ColdFire V2 32-bit CPU, 512 bytes of on-chip SRAM, ROMless operation for flexible boot configuration, an external oscillator input, and a 160-QFP package measuring 28x28 mm. The part operates from a single supply and includes 8 programmable I/O lines plus integrated peripherals typical of the ColdFire MCF5206 series such as timers, serial interfaces, and a system integration module. The MCF5206 architecture combines the ColdFire V2 core with a unified 32-bit address and data bus structure. Designers benefit from deterministic instruction execution, low interrupt latency, and an easy migration path from older 68k-based designs. The absence of internal flash means firmware is held in external ROM or flash, simplifying memory qualification and allowing larger program images than on-chip storage would permit. Typical applications for the MCF5206AB16A include industrial control, factory automation, networked equipment controllers, building automation, motor control hubs, and legacy 68k retrofit designs. Designers also use the MCF5206 in communications equipment where a deterministic 32-bit controller is needed for protocol stacks and supervisory tasks. When using this device, ensure the external oscillator circuit meets the ColdFire V2 AC timing requirements and that address/data bus loading is properly terminated. The 160-QFP footprint allows rework and inspection with conventional surface-mount tools, simplifying prototypes and field repair. This page synthesizes distributor pricing, same-brand pin-compatible variants, and design considerations not assembled in the manufacturer datasheet.

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MCF5206AB25A - ColdFire V2 MPU 25MHz ROMless 160-QFP | NXP
MCF5206AB25A

MCF5206AB25A - ColdFire V2 MPU 25MHz ROMless 160-QFP | NXP

The NXP Semiconductors (formerly Motorola/Freescale) MCF5206AB25A is a ColdFire V2 32-bit microprocessor unit (MPU) running at 25 MHz, packaged in a 160-pin Power QFP (PQFP / 160-BQFP), with 8-bit external data bus and ROMless boot configuration. The MCF5206 family integrates an enhanced ColdFire V2 core with on-chip SRAM, DRAM controller, timers, serial peripheral interfaces, and system integration logic designed for embedded control applications that require deterministic 32-bit performance without the cost of an external MMU. ColdFire microprocessors belong to the MPU (microprocessor unit) hierarchy, sitting between 8/16-bit microcontrollers and full application processors. An MPU is a CPU-plus-integration chip that requires external ROM/Flash and typically RAM, but includes selected peripherals on-die. The ColdFire ISA is a streamlined form of the original Motorola 68000 instruction set, optimized for code density and embedded cost. The MCF5206 family is positioned for industrial control, networking access, printer/graphics controllers, and point-of-sale terminals where deterministic response and proven toolchains matter more than raw MHz. Key features of the MCF5206AB25A include a 32-bit ColdFire V2 core with hardware multiply/divide, 8-bit external data port, an integrated DRAM controller supporting FPM/EDO DRAM, two enhanced timer units, a UART, a queued serial peripheral interface (QSPI), and an 8-bit general-purpose I/O port. The device operates from a 3.3 V core / I/O supply and supports industrial temperature ranges. The 160-pin PQFP package is preferred for designs where the additional board height is acceptable for ease of rework and prototype debugging. Typical applications include industrial serial-protocol bridges, factory-floor RS-232/RS-485 gateways, embedded control modules, motion control frontend processors, and legacy equipment mainboards where software has been validated against the ColdFire V2 ISA. When selecting a ColdFire part, engineers weigh pin count, on-chip peripherals, temperature grade, and core speed; the MCF5206AB25A specifically addresses the 25 MHz / ROMless / 160-PQFP corner of that matrix.

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MCF5206AB33A - ColdFire V2 33MHz MPU, 512B SRAM, 160-QFP | NXP
MCF5206AB33A

MCF5206AB33A - ColdFire V2 33MHz MPU, 512B SRAM, 160-QFP | NXP

The NXP MCF5206AB33A is a ColdFire V2 32-bit microprocessor unit (MPU) running at 33 MHz with 512 bytes of integrated SRAM, housed in a 160-pin QFP (28x28 mm) surface-mount package. As a member of the MCF520x ColdFire family, it delivers an 8-bit-style microcontroller interface with 32-bit RISC performance, targeting cost-sensitive embedded control applications. A ColdFire microprocessor (MPU) is a 32-bit RISC processor core derived from the Motorola 68000 instruction set architecture (ISA), optimized for low power consumption and high code density in embedded systems. ColdFire V2 is the second-generation variant, balancing performance and silicon efficiency for industrial control, networking edge nodes, and consumer electronics. The MCF5206A sits in the MPU hierarchy between microcontrollers (which integrate Flash/Memory and CPU) and high-end application processors, typically requiring external program memory. Key features of the MCF5206AB33A include 33 MHz core clock, 8-bit data bus operation, ROMless architecture (requires external program memory), 8 GPIO-style I/O lines, and an external oscillator input. The part supports a single ColdFire V2 core in a 160-pin PQFP package measuring 28x28 mm, designed for surface-mount assembly on standard 1.0 mm or 0.8 mm pitch PCB footprints depending on variant. ColdFire devices are widely supported by NXP/Freescale toolchains including CodeWarrior IDE and the GDB-based ColdFire toolchain. From an architectural perspective, the ColdFire V2 core uses a variable-length ISA (16/32/48-bit instructions) for high code density, and the MCF5206A integrates a configurable system bus, timers, and interrupt controller. Compared with ARM Cortex-M0 parts in the same MHz range, ColdFire V2 typically delivers higher code density per MHz, beneficial for ROMless designs. Typical applications include industrial automation controllers, embedded networking equipment, point-of-sale terminals, HVAC controllers, and legacy 68k replacement designs. The wide package and external memory interface also support educational development boards and prototyping platforms requiring ColdFire ISA compatibility. A primary design consideration when using the MCF5206AB33A is the requirement for external program memory (ROMless), which adds PCB area and BOM cost compared with Flash-equipped microcontrollers. Engineers should also evaluate the part's lifecycle status because ColdFire V2 is a mature product family with limited new design recommendations. This page synthesizes distributor pricing, same-package ColdFire alternatives, and practical design notes not found in the manufacturer datasheet, providing engineers with a single, decision-ready reference.

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MCF5206CAB16A - ColdFire V2 32-Bit MPU 16MHz 160-QFP | NVIDIA
MCF5206CAB16A

MCF5206CAB16A - ColdFire V2 32-Bit MPU 16MHz 160-QFP | NVIDIA

The NXP (formerly Freescale) MCF5206CAB16A is a ColdFire V2 32-bit microprocessor (MPU) without on-chip flash, integrating a single V2 core running up to 16 MHz, packaged in a 160-pin QFP (28x28 mm, BQFP). It is part of the MCF520x family of integrated peripherals designed for embedded control applications requiring deterministic performance with low power consumption. A microprocessor (MPU) like the ColdFire V2 is a CPU-centric integrated circuit that relies on external memory for program and data storage, in contrast to a microcontroller (MCU) which integrates flash, RAM and peripherals on-die. The ColdFire architecture belongs to the 68k family lineage and is positioned between legacy 8/16-bit MCUs and high-performance application processors. Within NXP's portfolio, the MCF5206 sits in the embedded-MPU segment aimed at industrial control, factory automation, networking edge nodes, and human-machine interface (HMI) terminals where deterministic instruction throughput and a rich peripheral set outweigh the need for zero external memory components. Key features include the ColdFire V2 core with 32-bit ALU, integrated SDRAM/DDR-style memory controller, DMA engine, timers, UART, I2C, QSPI, CAN, USB device, and general-purpose I/O. The device operates from a 3.3 V supply with 5 V tolerant I/O on selected pins, and the 160-QFP QFP package provides generous board-routing area for legacy designs. The ROMless configuration allows designers to use external boot memory such as parallel NOR flash, supporting flexible firmware upgrades and secure boot schemes in field-deployed equipment. The ColdFire V2 core uses a variable-length RISC-style instruction set (ColdFire ISA revision A) with a two-stage pipeline, delivering approximately 16 MIPS at 16 MHz while consuming under 300 mW typical. The integrated memory controller supports SDRAM, SRAM and ROM with chip-select glueless interface, reducing external logic. The deterministic interrupt controller and enhanced debug module (single-wire BDM) simplify real-time firmware development, while peripherals such as the Fast Ethernet MAC-ready bus and USB device controller allow direct connectivity to industrial networks and PC hosts. Typical applications include industrial PLC and motion controllers, factory HMI panels, networked sensor hubs, point-of-sale terminals, medical instrument front-ends, and legacy equipment upgrades where a known ColdFire software base is preserved. The wide operating temperature range and proven ColdFire toolchain (CodeWarrior, GCC ColdFire, Eclipse-based IDEs) make it a stable platform for long-lifecycle industrial products. When designing with the MCF5206CAB16A, ensure proper decoupling (100 nF + 10 uF bulk) at each VDD/VSS pin pair and maintain a continuous ground plane under the 160-QFP footprint to reduce EMI on the external memory bus. Use series termination on address and data lines when the bus length exceeds 50 mm to preserve signal integrity at 16 MHz. This page synthesizes distributor pricing, drop-in alternative MPNs from the MCF5206 family, and practical design notes not found in the standalone NXP product brief.

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