NXP Semiconductors

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

MPN: MCF51QE128CLK ✗ Cuối đời

2.5 V / 3.3 V Vdss 80-pin LQFP (QFP 80) Package 50.33 MHz (above 2.4 V); 40 MHz above 2.1 V; 20 MHz above 1.8 V Speed 128 KB Memory

Yêu cầu báo giá

MOQ: 1 |

Xem tài liệu kỹ thuật (PDF) Xem các bộ thay thế

Số lượng

MCF51QE128CLK Tóm tắt

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.

Bộ thay thế dễ dàng lắp đặt cho MCF51QE128CLK — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.

Các biến thể trong loạt này

Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với MCF51QE128CLK (cùng hình factor và footprint) — khác nhau ở Package, Series, Core Processor, Maximum CPU Frequency, Performance.

MCF51JE128VLK

NXP Semiconductors

Package: 80-LQFP (VLK) 12 x 12 mm

Series: MCF51JE

Core Processor: Coldfire V1

So sánh với MCF51QE128CLK →

MCF51MM128VLK

NXP Semiconductors

Series: MCF51MM

Core Processor: ColdFire V1

So sánh với MCF51QE128CLK →

MCF51QE96CLK

NXP Semiconductors

Package: 80-LQFP (14x14 mm)

Series: Flexis MCF51QE

Maximum CPU Frequency: 50.33 MHz (above 2.4V), 40 MHz (above 2.1V), 20 MHz (above 1.8V)

So sánh với MCF51QE128CLK →

MCF51QE128VLK

✅ Drop-In

📦 80-LQFP

same die, flash, and 80-pin LQFP footprint; ordering suffix denotes different temperature range/packaging option (extended grade)

📋 Tham chiếu thay thế (không có trong danh mục)

MCF51QE64CLK

✅ Drop-In ⚠️ Thông số chưa được xác minh

📦 80-LQFP

flash 64 KB vs 128 KB (-50%), same ColdFire V1 core, same 50.33 MHz max clock, pin-compatible

📋 Tham chiếu thay thế (không có trong danh mục)

MCF51JE128VLK

✅ Drop-In

NXP Semiconductors

📦 80-LQFP

Coldfire V1 · Coldfire V1 (32-bit) · 32-Bit · 50 MHz · 128 KB (128K x 8) · FLASH · 47 · CANbus, EBI/EMI, I2C, SCI, SPI, USB OTG

Liên hệ để biết giá

Xem tài liệu →

MCF51MM128VLK

✅ Drop-In

NXP Semiconductors

📦 80-LQFP

ColdFire V1 · 32-Bit · 50 MHz · 128 KB (128K x 8) · FLASH · 32K x 8 · 47 · CANbus, EBI/EMI, I2C, SCI, SPI, USB OTG

Liên hệ để biết giá

Xem tài liệu →

MCF51QE128CLK Tỷ lệ tối đa & tính chất điện

Core Processor	32-bit ColdFire V1
Core Size	32-bit
Maximum CPU Frequency	50.33 MHz (above 2.4 V); 40 MHz above 2.1 V; 20 MHz above 1.8 V
Flash Memory	128 KB
Điện áp cung cấp hoạt động	2.5 V / 3.3 V
Performance	0.94 Dhrystone MIPS/MHz
ADC Resolution	12-bit
ADC Channels	24
Hộp	80-pin LQFP (QFP 80)
Kiểu lắp đặt	Surface Mount
Packaging	Tray
Product Family	MCF51QE (Flexis QE series)
Trạng thái vòng đời	End of Life (per NXP product page)
Data Sheet Revision	Rev. 7 (MCF51QE128 Series Data Sheet)

Hướng dẫn cấu hình chân MCF51QE128CLK 80-pin lqfp (qfp 80)

Cấu hình chân cho MCF51QE128CLK (80-pin lqfp (qfp 80) gói). IC số này bao gồm chân GPIO, giao diện truyền thông (UART, SPI, I2C) và chân nguồn. Tham khảo tài liệu thông số kỹ thuật của nhà sản xuất để biết các chức năng chân thay thế và tùy chọn cấu hình. Cực kỳ quan trọng cho thiết kế hệ thống tích hợp và lập trình PCB.

Bảng cấu hình chân 80-pin lqfp (qfp 80) cho MCF51QE128CLK

Không có dữ liệu chân cụ thể sẵn có cho MCF51QE128CLK.

Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.

Ứng dụng tiêu biểu

MCF51QE128CLK phù hợp cho 6 Áp dụngs: Industrial Control Systems, Motor Control Boards, Consumer Appliance Control, Sensor Interface and Data Acquisition, Building Automation and Lighting Control, Legacy Embedded System Maintenance.

🏭

Industrial Control Systems

The MCF51QE128CLK fits factory automation nodes that need deterministic 32-bit control plus broad analog sensing: its 24-channel 12-bit ADC can digitize limit switches, potentiometers, and temperature sensors without external multiplexers, while the 50.33 MHz ColdFire V1 core executes PID control loops with ample headroom over 8-bit devices. In a typical topology the MCU reads analog inputs through the integrated ADC, drives relays or actuators via GPIO and timers, and communicates over UART or SPI to a supervisory PLC. Because the Flexis QE series pairs pin-compatible 8-bit and 32-bit devices, a control board can start on an 8-bit QE sibling and upgrade to this part with no PCB change, de-risking migration.

Được đề xuất

⚙️

Motor Control Boards

Motor drives benefit from the MCF51QE128CLK's combination of 12-bit analog acquisition and 32-bit arithmetic throughput. The 24-channel ADC can sample phase currents and bus voltage at 12-bit resolution, while the ColdFire V1 core at up to 50.33 MHz (above 2.4 V) computes field-oriented or trapezoidal commutation in software. Timer peripherals generate PWM outputs with hardware support, reducing CPU interrupt load. Running from a 3.3 V rail keeps logic compatible with common gate-driver and sensor levels. Estimated: at 0.94 Dhrystone MIPS/MHz, the core delivers roughly 47 MIPS at full clock, sufficient for multi-kHz current-loop control in small motor applications. Note that this part is EOL, so new motor-control designs should target an active NXP MCU family.

Được đề xuất

MCF52252CAF66 · NXP Semiconductors MC56F8357VVFE · NXP Semiconductors

🔌

Consumer Appliance Control

Appliances such as cooktops, HVAC controllers, and small home machines demand low system cost, flash configurability, and multi-sensor monitoring - all met by the MCF51QE128CLK in one chip. The 128 KB flash stores user interfaces, fault logs, and communication stacks, while the integrated ADC reads thermistors and user controls directly. The 80-pin LQFP supplies ample GPIO for seven-segment displays, relays, and touch or button inputs, minimizing external logic. Its 2.5 V/3.3 V operation simplifies power-tree design in cost-sensitive products. The Flexis architecture also allows an 8-bit QE variant to be substituted for cost-optimized SKUs on the identical PCB, letting one board serve multiple product tiers without a respin.

Được đề xuất

MC9S08DV128CLF · NXP Semiconductors MC9S08MM128VMB · NXP Semiconductors

🧩

Sensor Interface and Data Acquisition

Multi-channel data acquisition is a natural fit: the integrated 24-channel, 12-bit ADC digitizes up to two dozen sensor inputs with 4096-count resolution, eliminating external analog front-end multiplexers. The 128 KB flash buffers configuration tables, calibration coefficients, and firmware for protocol conversion, while the ColdFire V1 core performs averaging, filtering, and linearization in software at up to 50.33 MHz. Typical usage places the MCU as a bridge between raw analog sensors and a digital backhaul such as UART, SPI, or I2C to a gateway. Designers should budget sampling time across channels, since a single ADC shared by 24 inputs constrains per-channel rate; multiplexed sampling suits slow process variables rather than high-speed vibration analysis.

Được đề xuất

MCF51MM256VML · NXP Semiconductors MK60DN256VMD10 · NXP Semiconductors

💡

Building Automation and Lighting Control

Building controllers need many I/O points, moderate compute, and long product availability - the 80-pin LQFP package of the MCF51QE128CLK provides the GPIO density for relay banks, dimming outputs, keypads, and sensor busses on a single controller. The 12-bit ADC reads occupancy, temperature, and light-level sensors, while UART/SPI/I2C interfaces connect to DALI-style or RS-485 style field busses through external transceivers. The 128 KB flash accommodates scheduling engines, communication stacks, and OTA-style field update loaders with room to spare. Since the part is End of Life, integrators maintaining installed fleets should secure stock now and plan a footprint-compatible or redesign migration to an active NXP MCU family for future product revisions.

Được đề xuất

S9S12VR48F2CLF · NXP Semiconductors MKL26Z128VMC4 · NXP Semiconductors

🔧

Legacy Embedded System Maintenance

A primary real-world use of the MCF51QE128CLK today is sustaining existing products whose firmware and PCB were designed around the Flexis QE family. Because the part is EOL, maintenance engineers use this page to source remaining distributor inventory - Eiyu lists over 8000 units ready to ship - and to identify drop-in family substitutes such as the MCF51QE64 for lower-memory board variants. In a typical repair or small-batch production scenario, the same footprint accepts any QE-series 80-pin LQFP member, allowing firmware-matched substitution without respinning the PCB. We recommend qualifying each substitute against the original firmware's flash, RAM, and peripheral requirements, and documenting an end-of-life migration plan to an active NXP device family.

Được đề xuất

MCF51JE128VLK · NXP Semiconductors MK21DN512AVLK5 · NXP Semiconductors

Tóm tắt các sản phẩm được đề xuất

What is the MCF51QE128CLK and what are its key specifications?

The MCF51QE128CLK is an NXP 32-bit microcontroller with a ColdFire V1 core, 128 KB of flash memory, and up to 50.33 MHz CPU operation above a 2.4 V supply, housed in an 80-pin LQFP package. According to the MCF51QE128 Series data sheet, it also provides a 24-channel 12-bit ADC and delivers approximately 0.94 Dhrystone MIPS per MHz, running from 2.5 V or 3.3 V supplies. It is now End of Life per the NXP product page, so new designs should plan a replacement strategy.

Is the MCF51QE128CLK discontinued? What is its lifecycle status?

Yes, the MCF51QE128CLK is listed as End of Life on NXP's official product page. The page notes an available discontinuance and replacement notification path. Last-time-buy windows may have closed at authorized distributors, but remaining stock is still traded through independent distributors such as Eiyu (which lists stock of over 8000 units ready to ship). Designers should evaluate the pin-compatible QE family siblings or migrate to a current NXP MCU family.

What is the best drop-in replacement for MCF51QE128CLK?

The closest drop-in replacements are same-package members of the MCF51QE128 family, since the Flexis QE series was designed pin-compatible. The MCF51QE64 in the 80-pin LQFP package is pin-compatible with identical peripherals but 64 KB flash instead of 128 KB, suiting applications with smaller code size. For extended-temperature builds, the MCF51QE128 in the VLK variant provides the same die and footprint. Always verify the ordering suffix against the MCF51QE128 Series data sheet before committing a footprint.

What is the difference between MCF51QE128CLK and MCF51QE64CLK?

The primary difference is flash memory: the MCF51QE128 provides 128 KB of flash while the MCF51QE64 provides 64 KB, all else being essentially equivalent. Both use the 32-bit ColdFire V1 core, the same 80-pin LQFP footprint, the same 24-channel 12-bit ADC, and the same maximum 50.33 MHz clock rating. This makes the QE64 a pin-compatible, lower-memory drop-in for designs whose code fits within 64 KB, at a typically lower unit cost.

What is the maximum clock frequency of the MCF51QE128CLK at different supply voltages?

The MCF51QE128CLK runs at up to 50.33 MHz when the supply is above 2.4 V, up to 40 MHz above 2.1 V, and up to 20 MHz above 1.8 V, according to the Freescale/NXP technical data sheet. This voltage-dependent frequency scaling means designers must configure the clock generator to match the actual operating voltage, since exceeding the frequency limit at a given VDD violates the datasheet timing specifications.

Where can I download the MCF51QE128CLK datasheet PDF?

The official MCF51QE128 Series data sheet PDF is available directly from NXP at https://www.nxp.com/docs/en/data-sheet/MCF51QE128.pdf. It is also mirrored by Mouser Electronics at https://www.mouser.com/datasheet/2/302/MCF51QE128-1660397.pdf. The data sheet covers electrical characteristics, timing specifications, and package drawings for the entire QE128 series including the 80-pin LQFP variant used by the MCF51QE128CLK.

Where can I buy MCF51QE128CLK and is it in stock?

Because the MCF51QE128CLK is End of Life at NXP, authorized distribution stock is limited, and pricing on this page is quote-based rather than listed. Independent distributors still hold inventory: Eiyu lists over 8000 units in stock with 24-hour shipping, and Octopart tracks pricing across 8 distributors. Use the XAIPART RFQ flow to obtain current pricing and lead time as of 2026-10-18, or evaluate the alternatives listed on this page for new builds.

What is the price of the MCF51QE128CLK?

There is no fixed catalog price for the MCF51QE128CLK because the part is End of Life and trades through the open market and remaining distributor stock rather than standard price breaks. Octopart compares bulk pricing from 8 distributors for this exact MPN, and Eiyu offers RFQ-based discounts on its in-stock quantity. XAIPART provides quote-based pricing as of 2026-10-18; request a quote for quantity pricing and lead time.

What is the lead time for MCF51QE128CLK?

Lead time depends on the source: independent distributors holding stock, such as Eiyu with more than 8000 units listed, can ship within 24 hours. If sourcing requires broker or excess-inventory channels, lead times typically extend to several weeks and pricing floats with market conditions. Because the part is End of Life per NXP, there is no factory lead time for new production. Contact XAIPART for the current lead-time quote as of 2026-10-18.

Is there a cross-brand equivalent for the MCF51QE128CLK?

No verified cross-brand pin-to-pin equivalent was found in current cross-reference data for the MCF51QE128CLK in the 80-pin LQFP package. The ColdFire V1 architecture was proprietary to Freescale/NXP, so competitors did not produce footprint-compatible clones. The practical migration paths are same-family QE devices or architectural migration to an active NXP MCU family with a PCB redesign. Check the NXP cross-reference tool for the officially recommended successor before redesigning.

What ADC does the MCF51QE128CLK include and why does it matter?

The MCF51QE128CLK integrates a 24-channel, 12-bit ADC according to the NXP Flexis QE family product description. This is a key differentiator for analog-heavy embedded designs: 24 input channels allow many sensors or voltage rails to be monitored without external multiplexers, and 12-bit resolution provides 4096 code levels versus 1024 at 10 bits. Typical uses include battery monitoring, motor current sensing, and multi-sensor industrial nodes on a single chip.

MCF51QE128CLK vs MCF51QE128VLK - which should I choose?

Both parts use the same die, 128 KB flash, and 80-pin LQFP footprint, so electrically and mechanically they are interchangeable on the same PCB. The difference is the ordering suffix indicating temperature range and packaging options, so the choice is driven by your product's environmental specification rather than performance. For standard commercial temperature industrial and consumer builds the CLK variant suffices; for extended temperature requirements choose the VLK variant, verifying the exact range in the MCF51QE128 Series data sheet.

Can I migrate from the 8-bit QE family to the MCF51QE128 without changing the PCB?

Yes, that is the core purpose of NXP's Flexis QE series: it pairs pin-compatible 8-bit and 32-bit devices with the same peripheral set, allowing migration between them without a board redesign. According to NXP, the QE family is the first Flexis family and the connection point on the Controller Continuum where 8- and 32-bit compatibility becomes reality. If your board currently hosts an 8-bit QE128 device in the 80-pin LQFP package, the MCF51QE128CLK drops in when you need more processing headroom.

What supply voltage does the MCF51QE128CLK require?

The MCF51QE128CLK operates from 2.5 V or 3.3 V supplies per distributor specification data, with the datasheet defining frequency scaling by voltage: 50.33 MHz above 2.4 V, 40 MHz above 2.1 V, and 20 MHz above 1.8 V. For a design needing the full 50.33 MHz performance, power the part from a 3.3 V or at minimum a clean 2.5 V rail. Decouple each supply pin with ceramic capacitors placed close to the package, per standard practice in the datasheet electrical section.

What performance does the ColdFire V1 core in the MCF51QE128CLK deliver?

The MCF51QE128CLK provides approximately 0.94 Dhrystone MIPS per MHz according to the Freescale technical data, meaning near 47 Dhrystone MIPS at the 50.33 MHz maximum clock. The ColdFire V1 CPU is a 32-bit Version 1 implementation optimized for entry-level 32-bit control, delivering much higher arithmetic throughput than contemporary 8-bit cores while retaining compact code. This suits control loops, protocol handling, and light signal processing that exceed practical 8-bit headroom.

Dữ liệu tham khảo kỹ thuật cho MCF51QE128CLK — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.

Hướng dẫn chọn lựa

Choose the MCF51QE128CLK when you must maintain or extend an existing Flexis QE128-based product and need the full 128 KB flash in the 80-pin LQFP footprint. If your firmware fits within 64 KB, the MCF51QE64CLK is the lower-cost pin-compatible drop-in. If your environment requires extended temperature range, select the MCF51QE128VLK variant of the same die instead of the CLK grade. If your product needs USB device connectivity, evaluate the Flexis JE family (MCF51JE128VLK) on the same footprint after verifying pin-function mapping; for signal-conditioning-centric designs, check the Flexis MM family. Because every QE-family part is End of Life, new designs should migrate to NXP's Kinetis ARM Cortex-M series, accepting a PCB redesign as the cost of long-term supply security. All trade-offs above assume verification against the MCF51QE128 Series data sheet.

So sánh với các sản phẩm thay thế

Tham số	Sản phẩm này	MCF51QE128VLK	MCF51QE64CLK	MCF51JE128VLK	MCF51MM128VLK
Package	80-LQFP	80-LQFP - same	80-LQFP - same	80-LQFP - same	80-LQFP - same
Brand	NXP Semiconductors	NXP Semiconductors	NXP Semiconductors	NXP Semiconductors	NXP Semiconductors
Flash Memory	128 KB	128 KB	64 KB	128 KB	128 KB
Core / Max Clock	ColdFire V1 / 50.33 MHz	ColdFire V1 / 50.33 MHz	ColdFire V1 / 50.33 MHz	ColdFire V1 / 50.33 MHz	ColdFire V1 / 50.33 MHz
Key Differentiator	EOL; full 128 KB QE flagship in LQFP-80	Extended temperature/packaging option	Lower flash/cost variant	USB-centric Flexis JE family	Signal-conditioning-centric Flexis MM family
Lifecycle Status	End of Life	EOL	EOL	EOL	EOL

Bảo phân biệt quan trọng

Full 128 KB flash in the QE family LQFP-80 package (vsMCF51QE64CLK)
Flexis 8/32-bit pin compatibility (vsMCF51QE128VLK and 8-bit QE siblings)
Voltage-scaled clock up to 50.33 MHz (vsMCF51QE64CLK)

Ghi chú thiết kế

The maximum CPU frequency is supply-voltage dependent: 50.33 MHz requires VDD above 2.4 V, 40 MHz above 2.1 V, and 20 MHz above 1.8 V per the MCF51QE128 Series data sheet. Configure the clock generator (FLL multiplier) so the system clock never exceeds the limit for the actual rail voltage, including brownout dips. For designs targeting 50 MHz, power from a regulated 3.3 V rail with local 100 nF decoupling at each supply pin plus a bulk 10 uF capacitor.

The MCF51QE128CLK is End of Life per the NXP product page. Do not start new designs on this part. For sustaining production, qualify the pin-compatible MCF51QE64 (verify your firmware fits 64 KB flash) or the VLK temperature-grade variant of the same die. For new designs, NXP's Kinetis ARM Cortex-M family is the supported migration path but requires a PCB redesign. Confirm flash and RAM requirements of your firmware image before selecting any substitute.

The 80-pin LQFP has 0.5 mm pin pitch; use a fine-pitch soldering process and inspect for bridging under magnification. Provide generous analog grounding around the ADC input pins to preserve 12-bit performance - route analog traces away from fast clock and PWM nets, and use a single solid ground plane where possible. Decouple VDDA separately from VDD with an RC or ferrite filter to reduce digital noise coupling into the 24-channel ADC.

Thông tin tuân thủ

RoHS

Unknown

REACH

Unknown

AEC-Q100

Not Applicable

Không chì

Unknown

Không halogen

Unknown

Khoáng vật xung đột

Unknown

Compliance data not present in the retrieved web data; verify on the NXP product page for MCF51QE128CLK (Environmental Quality section).

Dữ liệu được xác minh vào: 2026-10-18 — dữ liệu được xác minh và quản lý bởi đội ngũ kỹ thuật phần cứng của XAIPART

Nguồn: Manufacturer Datasheet, Manufacturer Product Page, Manufacturer Product Page, Distributor, Octopart, Distributor, Distributor

Tìm kiếm liên quan

MCF51QE128CLK MCF51QE128CLK datasheet NXP MCF51QE128CLK MCF51QE128CLK buy in stock MCF51QE128CLK price MCF51QE128CLK drop-in replacement MCF51QE128 vs MCF51QE64 ColdFire V1 microcontroller 128KB flash 80 LQFP MCF51QE128CLK end of life replacement Flexis QE family 32-bit MCU what is the maximum clock frequency of MCF51QE128CLK NXP ColdFire MCU obsolete substitute

Các bộ phận và thuật ngữ liên quan

NXP Semiconductors Freescale Semiconductor MCF51QE128CLK MCF51QE64CLK MCF51QE128VLK MCF51JE128VLK MCF51MM128VLK ColdFire V1 Flexis series microcontroller 32-bit MCU 12-bit ADC 80-pin LQFP QFP package family surface mount End of Life Dhrystone MIPS Controller Continuum Kinetis RoHS industrial control motor control FLL clock generator UART/SPI/I2C