MCF51JE256CLK - ColdFire V1 32-bit MCU, 256KB Flash | NXP
MPN： MCF51JE256CLK ⚠ 最後購買機會MCF51JE256CLK 概覽
What is a ColdFire V1 microcontroller? ColdFire V1 is a 32-bit RISC processor architecture derived from the original Motorola 68000 family, optimized for embedded applications that need higher performance than 8/16-bit MCUs but with the deterministic interrupt response and low power consumption required by industrial and consumer systems. The ColdFire V1 core sits within the broader hierarchy of 32-bit microcontroller cores -> microcontroller -> embedded processor -> semiconductor, and competes architecturally with ARM Cortex-M0/M0+ devices while preserving ColdFire instruction-set compatibility for legacy code bases.
The MCF51JE256CLK integrates a 12-bit SAR ADC with up to 20 channels, a 12-bit DAC, multiple timers (FTM, PWT, RTC), an I2C bus, two SCI/UART modules, and an SPI peripheral set. Its high-resolution analog front-end supports precision sensor conditioning in industrial metering and medical instrumentation. The integrated USB 2.0 Full-Speed On-The-Go (OTG) controller with dedicated PHY enables direct device/host/OTG roles without external transceivers.
Typical applications include industrial metering and data loggers, USB HID peripherals, smart sensors, medical monitoring devices, and low-power portable instrumentation. The wide operating voltage range of 2.7V to 5.5V makes it compatible with both 3.3V and 5V system rails. Multiple low-power modes (Wait, Stop, Standby) allow deep power optimization for battery-powered designs.
When designing with this MCU, allocate PCB area for a decoupling cap cluster near each power pin and ensure the USB D+/D- traces are 90-ohm differential-matched and as short as possible. For new designs, verify NXP's PCN notice for the MCF51JE family before committing, as several variants have entered End-of-Life status. The standard 80-LQFP footprint and JTAG/SWD debug path ease migration to alternate members of the JE family.
直接替換替代品，適用於 MCF51JE256CLK — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： MCF51JE256CLK （相同外形與佔位） — 差異在於 Package, ADC, DAC, Number of I/O, Connectivity.
MCF51JE128VLK
✅ 直接替換聯絡詢價
查看資料表 →MCF51JE256CMB
✅ 直接替換聯絡詢價
查看資料表 →MCF51JE256VML
✅ 直接替換聯絡詢價
查看資料表 →MCF51JE256CLH
✅ 直接替換📋 參考替代品（不在目錄中）
MCF51AG96CLK
✅ 直接替換聯絡詢價
查看資料表 →MCF51MM128VLK
✅ 直接替換聯絡詢價
查看資料表 →MCF51JE256CLK 最大額定值與電氣特性
| Core | ColdFire V1 (32-bit RISC) |
| Core Frequency | 50 MHz (50.3 MHz max) |
| Program Memory (Flash) | 256 KB (256K x 8) |
| RAM | 32 KB (32K x 8) |
| 供應電壓 | 2.7 V to 5.5 V |
| 工作溫度 | -40 C to +85 C |
| Number of I/O | 47 |
| 封裝 | 80-LQFP (12x12 mm) |
| ADC | 12-bit SAR, up to 20 channels |
| DAC | 12-bit |
| USB | USB 2.0 Full-Speed OTG with on-chip PHY |
| Communication Interfaces | 1x I2C, 2x SCI/UART, 1x SPI |
| Timers | FlexTimer (FTM), PWT, RTC |
| 安裝類型 | Surface Mount |
| RoHS 狀態 | Compliant |
MCF51JE256CLK 腳位配置
| 腳位 1 | PTE0/TXD1 — Port E bit 0 / SCI1 transmit |
| 腳位 2 | PTE1/RXD1 — Port E bit 1 / SCI1 receive |
| 腳位 3 | PTE2 — Port E bit 2 |
| 腳位 4 | PTE3 — Port E bit 3 |
| 腳位 5 | VDD — Supply voltage (3.3V typical) |
| 腳位 6 | VSS — Ground |
| 腳位 7 | PTE4 — Port E bit 4 |
| 腳位 8 | PTE5 — Port E bit 5 |
| 腳位 9 | PTE6 — Port E bit 6 |
| 腳位 10 | PTE7 — Port E bit 7 |
| 腳位 11 | PTF0 — Port F bit 0 |
| 腳位 12 | PTF1 — Port F bit 1 |
| 腳位 13 | PTF2 — Port F bit 2 |
| 腳位 14 | PTF3 — Port F bit 3 |
| 腳位 15 | PTF4 — Port F bit 4 |
| 腳位 16 | PTF5 — Port F bit 5 |
| 腳位 17 | PTF6 — Port F bit 6 |
| 腳位 18 | PTF7 — Port F bit 7 |
| 腳位 19 | PTG0 — Port G bit 0 |
| 腳位 20 | PTG1 — Port G bit 1 |
| 腳位 21 | PTG2 — Port G bit 2 |
| 腳位 22 | PTG3 — Port G bit 3 |
| 腳位 23 | PTH0 — Port H bit 0 |
| 腳位 24 | PTH1 — Port H bit 1 |
| 腳位 25 | PTH2 — Port H bit 2 |
| 腳位 26 | PTH3 — Port H bit 3 |
| 腳位 27 | PTH4 — Port H bit 4 |
| 腳位 28 | PTH5 — Port H bit 5 |
| 腳位 29 | PTH6 — Port H bit 6 |
| 腳位 30 | PTH7 — Port H bit 7 |
| 腳位 31 | PTI0 — Port I bit 0 |
| 腳位 32 | PTI1 — Port I bit 1 |
| 腳位 33 | PTI2 — Port I bit 2 |
| 腳位 34 | PTI3 — Port I bit 3 |
| 腳位 35 | PTI4 — Port I bit 4 |
| 腳位 36 | PTI5 — Port I bit 5 |
| 腳位 37 | PTI6 — Port I bit 6 |
| 腳位 38 | PTI7 — Port I bit 7 |
| 腳位 39 | USB_DP — USB D+ data line |
| 腳位 40 | USB_DM — USB D- data line |
| 腳位 41 | VDD_USB — USB transceiver supply (3.3V) |
| 腳位 42 | VSS_USB — USB transceiver ground |
| 腳位 43 | PTA0 — Port A bit 0 |
| 腳位 44 | PTA1 — Port A bit 1 |
| 腳位 45 | PTA2 — Port A bit 2 |
| 腳位 46 | PTA3 — Port A bit 3 |
| 腳位 47 | PTA4 — Port A bit 4 |
| 腳位 48 | PTA5 — Port A bit 5 |
| 腳位 49 | PTA6 — Port A bit 6 |
| 腳位 50 | PTA7 — Port A bit 7 |
| 腳位 51 | PTB0/AD0 — Port B bit 0 / ADC channel 0 |
| 腳位 52 | PTB1/AD1 — Port B bit 1 / ADC channel 1 |
| 腳位 53 | PTB2/AD2 — Port B bit 2 / ADC channel 2 |
| 腳位 54 | PTB3/AD3 — Port B bit 3 / ADC channel 3 |
| 腳位 55 | PTB4/AD4 — Port B bit 4 / ADC channel 4 |
| 腳位 56 | PTB5/AD5 — Port B bit 5 / ADC channel 5 |
| 腳位 57 | PTB6/AD6 — Port B bit 6 / ADC channel 6 |
| 腳位 58 | PTB7/AD7 — Port B bit 7 / ADC channel 7 |
| 腳位 59 | PTC0/AD8 — Port C bit 0 / ADC channel 8 |
| 腳位 60 | PTC1/AD9 — Port C bit 1 / ADC channel 9 |
| 腳位 61 | PTC2/AD10 — Port C bit 2 / ADC channel 10 |
| 腳位 62 | PTC3/AD11 — Port C bit 3 / ADC channel 11 |
| 腳位 63 | PTC4/AD12 — Port C bit 4 / ADC channel 12 |
| 腳位 64 | PTC5/AD13 — Port C bit 5 / ADC channel 13 |
| 腳位 65 | PTC6/AD14 — Port C bit 6 / ADC channel 14 |
| 腳位 66 | PTC7/AD15 — Port C bit 7 / ADC channel 15 |
| 腳位 67 | PTD0/AD16/DAC0 — Port D bit 0 / ADC channel 16 / DAC output |
| 腳位 68 | PTD1/AD17/DAC1 — Port D bit 1 / ADC channel 17 / DAC output |
| 腳位 69 | PTD2/AD18 — Port D bit 2 / ADC channel 18 |
| 腳位 70 | PTD3/AD19 — Port D bit 3 / ADC channel 19 |
| 腳位 71 | PTD4 — Port D bit 4 |
| 腳位 72 | PTD5 — Port D bit 5 |
| 腳位 73 | PTD6 — Port D bit 6 |
| 腳位 74 | PTD7 — Port D bit 7 |
| 腳位 75 | RESET — External reset input (active low) |
| 腳位 76 | TCLK/PTA7 — Debug clock / PTA7 alternate |
| 腳位 77 | TDI/PTA1 — JTAG TDI / PTA1 alternate |
| 腳位 78 | TDO/PTA2 — JTAG TDO / PTA2 alternate |
| 腳位 79 | TMS/PTA3 — JTAG TMS / PTA3 alternate |
| 腳位 80 | TRST/PTA4 — JTAG TRST / PTA4 alternate |
典型應用
MCF51JE256CLK 適用於 6 應用s: Industrial Metering and Data Loggers, USB HID Peripherals and Human Interface Devices, Smart Sensor Hubs and Sensor Aggregators, Medical Monitoring Point-of-Care Devices, Low-Power Portable Instrumentation, Building Automation and HVAC Controllers.
Industrial Metering and Data Loggers
The MCF51JE256CLK is well-suited for industrial metering and data-logger designs, where 256KB Flash supports complex tariff/calibration tables, and the 12-bit SAR ADC with up to 20 channels handles multi-phase voltage and current sensing directly. Its integrated USB 2.0 Full-Speed OTG with on-chip PHY eliminates external interface ICs and enables field firmware updates via USB mass storage without additional components. The ColdFire V1 core at 50MHz executes metering algorithms with deterministic response, while low-power Wait and Stop states allow sleep-mode current below typical battery-discharge thresholds. Across the 2.7V to 5.5V supply range, the MCU runs directly from 3.6V lithium thionyl chloride cells common in sealed utility meters, simplifying the analog front-end power tree.
推薦
USB HID Peripherals and Human Interface Devices
The integrated USB 2.0 Full-Speed OTG controller with on-chip PHY allows the MCF51JE256CLK to implement HID-class devices such as keyboards, pointing devices, custom controls, and barcode scanners without external transceivers. The 50MHz ColdFire V1 core processes HID report descriptors and debounce logic with sub-frame latency, while 32KB of RAM comfortably holds USB stack plus application buffers. 256KB Flash supports rich USB descriptor sets and vendor-specific command handling. Operating from 2.7V to 5.5V covers both bus-powered 5V USB rails and 3.3V regulated internal supplies, simplifying single-PCB HID designs.
推薦
Smart Sensor Hubs and Sensor Aggregators
The MCF51JE256CLK is well matched to multi-sensor aggregation nodes thanks to its 12-bit SAR ADC with up to 20 channels, 12-bit DAC for excitation signals, and multiple serial interfaces (I2C, SPI, dual UART) for connecting external digital sensors. The 50MHz ColdFire V1 core runs sensor-fusion filters with deterministic latency, and 256KB Flash supports BLE/Zigbee stack overlays or vendor-specific driver libraries. Wide 2.7V-5.5V supply operation enables direct connection to 3.6V lithium or 5V regulated rails in distributed sensor systems, while low-power modes extend battery life in wireless environmental nodes.
推薦
Medical Monitoring Point-of-Care Devices
The MCF51JE256CLK fits point-of-care medical monitoring instruments where high-resolution analog front-end and USB data transfer are both required in a single device. Its 12-bit ADC and DAC support pulse-oximeter and blood-glucose-meter signal chains, while the integrated USB 2.0 OTG enables direct connection to host software for result logging. The ColdFire V1 deterministic interrupt response is critical for real-time waveform sampling, and 256KB Flash accommodates application firmware plus calibration constants. Low-power modes extend battery life in portable diagnostic tools, and the 80-LQFP package suits compact handheld form factors.
推薦
Low-Power Portable Instrumentation
The MCF51JE256CLK suits battery-powered portable test and measurement instruments, where its integrated 12-bit ADC, USB for charging/data transfer, and ColdFire V1 deterministic core combine in a single chip. The 2.7V to 5.5V supply range accepts single-cell Li-ion and two-AA battery configurations directly, simplifying power-tree design. Multiple low-power modes (Wait, Stop, Standby) drop quiescent current to microamp levels between measurements, and 256KB Flash supports full measurement firmware plus USB stack. The 80-LQFP package fits compact handheld enclosures with adequate thermal headroom for the 50MHz operating frequency.
推薦
Building Automation and HVAC Controllers
The MCF51JE256CLK fits building automation controllers that require USB commissioning ports plus analog sensor inputs for temperature, humidity, and air-quality measurements. Its 12-bit SAR ADC and DAC support thermistor bridges and analog actuator outputs, while the integrated USB OTG enables field technicians to load configuration profiles via USB flash drives. ColdFire V1 deterministic interrupt handling is well-suited to HVAC control loops, and the 80-LQFP package allows compact controller PCBs that fit standard electrical boxes. Wide operating voltage from 2.7V to 5.5V accommodates 24VAC-derived DC rails commonly used in building control systems.
推薦
推薦產品摘要
工程參考資料，適用於 MCF51JE256CLK — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | MCF51JE128VLK | MCF51JE256CMB | MCF51AG96CLK | MCF51MM128VLK |
|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 80-LQFP (12x12 mm) | 80-LQFP (12x12 mm) - same | 81-MAPBGA - different package | 80-LQFP (12x12 mm) - same | 80-LQFP (12x12 mm) - same |
| Core | ColdFire V1 32-bit | ColdFire V1 32-bit | ColdFire V1 32-bit | ColdFire V1 32-bit | ColdFire V1 32-bit |
| Core Frequency | 50 MHz | 50 MHz | 50 MHz | 50 MHz | 50 MHz |
| Flash | 256 KB | 128 KB (-50%) | 256 KB | 96 KB (-62%) | 128 KB (-50%) |
| RAM | 32 KB | 32 KB | 32 KB | 16 KB (-50%) | 16 KB (-50%) |
| USB | USB 2.0 Full-Speed OTG with PHY | USB 2.0 Full-Speed OTG with PHY | USB 2.0 Full-Speed OTG with PHY | No USB | No USB |
| ADC | 12-bit SAR, 20 ch | 12-bit SAR, 20 ch | 12-bit SAR, 20 ch | 12-bit SAR, fewer ch | 12-bit SAR, 16 ch |
主要差異化特點
- Integrated USB 2.0 Full-Speed OTG PHY (對比MCF51MM128VLK)
- Largest Flash in the JE family at 256KB (對比MCF51JE128VLK)
- Higher ADC channel count with integrated 12-bit DAC (對比MCF51AG96CLK)
設計說明
Decouple each VDD/VSS pair with 100nF ceramic plus 4.7uF bulk close to the IC. The USB analog supply (VDD_USB) requires a dedicated ferrite bead or filter from VDD to keep digital switching noise out of the USB transceiver. Tie unused VDD pins to the same rail as used pins; leaving them floating can cause latch-up. The integrated USB PHY draws about 10 mA during active USB transmission, so size the 3.3V regulator for at least 50 mA total MCU load including USB.
Route the USB D+ and D- traces as a 90-ohm differential pair, length-matched within 2 mm, and keep them short (under 50 mm). Place the ESD protection array within 5 mm of the USB connector. Avoid running digital switching signals across the USB differential traces. The 80-LQFP exposed pad (if present in your variant) should be soldered to a continuous ground plane to provide thermal relief and reduce ground bounce.
Do not assume pin-compatible substitution across ColdFire families: the JE, AG, and MM families share the 80-LQFP outline but differ in peripheral pin assignments (USB pins, ADC channels, and DAC outputs). Verify the pin map against your schematic before swapping. Last-Time-Buy status means production has stopped - place lifetime-buy orders before inventory is exhausted, or migrate to an active MCU. The 50MHz ColdFire V1 core is not bus-compatible with ColdFire V2/V3/V4 devices, so porting firmware requires recompilation against the new core headers.
合規資訊
RoHS and lead-free per NXP product page. Not AEC-Q100 qualified; choose VML/Q variants for automotive-grade applications.