MCF51JE256CLK - ColdFire V1 32-bit MCU, 256KB Flash | NXP
N.º da peça: MCF51JE256CLK ⚠ Última compra| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $14.2 | $14,20 |
| 10 | $12.85 | $128,50 |
| 100 | $11.42 | $1.142,00 |
| 500 | $10.1 | $5.050,00 |
| 1.000 | $8.95 | $8.950,00 |
MCF51JE256CLK Visão geral
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.
Alternativas drop-in para MCF51JE256CLK — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com MCF51JE256CLK (mesmo formato e footprint) — diferindo em Package, ADC, DAC, Number of I/O, Connectivity.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
MCF51JE128VLK
✅ Drop-In✓ Em estoque
$6.95 / unidade
Ver ficha técnica →MCF51JE256CMB
✅ Drop-In✓ Em estoque
Consulte o preço
Ver ficha técnica →MCF51JE256VML
✅ Drop-In✓ Em estoque
Consulte o preço
Ver ficha técnica →MCF51JE256CLH
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
MCF51AG96CLK
✅ Drop-In✓ Em estoque
$10.4 / unidade
Ver ficha técnica →MCF51MM128VLK
✅ Drop-In✓ Em estoque
Consulte o preço
Ver ficha técnica →MCF51JE256CLK Classificações máximas e características elétricas
| 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) |
| Tensão de alimentação | 2.7 V to 5.5 V |
| Temperatura de operação | -40 C to +85 C |
| Number of I/O | 47 |
| Encapsulamento | 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 |
| Tipo de montagem | Surface Mount |
| Status RoHS | Compliant |
Configuração de pinos do MCF51JE256CLK
| Pino 1 | PTE0/TXD1 — Port E bit 0 / SCI1 transmit |
| Pino 2 | PTE1/RXD1 — Port E bit 1 / SCI1 receive |
| Pino 3 | PTE2 — Port E bit 2 |
| Pino 4 | PTE3 — Port E bit 3 |
| Pino 5 | VDD — Supply voltage (3.3V typical) |
| Pino 6 | VSS — Ground |
| Pino 7 | PTE4 — Port E bit 4 |
| Pino 8 | PTE5 — Port E bit 5 |
| Pino 9 | PTE6 — Port E bit 6 |
| Pino 10 | PTE7 — Port E bit 7 |
| Pino 11 | PTF0 — Port F bit 0 |
| Pino 12 | PTF1 — Port F bit 1 |
| Pino 13 | PTF2 — Port F bit 2 |
| Pino 14 | PTF3 — Port F bit 3 |
| Pino 15 | PTF4 — Port F bit 4 |
| Pino 16 | PTF5 — Port F bit 5 |
| Pino 17 | PTF6 — Port F bit 6 |
| Pino 18 | PTF7 — Port F bit 7 |
| Pino 19 | PTG0 — Port G bit 0 |
| Pino 20 | PTG1 — Port G bit 1 |
| Pino 21 | PTG2 — Port G bit 2 |
| Pino 22 | PTG3 — Port G bit 3 |
| Pino 23 | PTH0 — Port H bit 0 |
| Pino 24 | PTH1 — Port H bit 1 |
| Pino 25 | PTH2 — Port H bit 2 |
| Pino 26 | PTH3 — Port H bit 3 |
| Pino 27 | PTH4 — Port H bit 4 |
| Pino 28 | PTH5 — Port H bit 5 |
| Pino 29 | PTH6 — Port H bit 6 |
| Pino 30 | PTH7 — Port H bit 7 |
| Pino 31 | PTI0 — Port I bit 0 |
| Pino 32 | PTI1 — Port I bit 1 |
| Pino 33 | PTI2 — Port I bit 2 |
| Pino 34 | PTI3 — Port I bit 3 |
| Pino 35 | PTI4 — Port I bit 4 |
| Pino 36 | PTI5 — Port I bit 5 |
| Pino 37 | PTI6 — Port I bit 6 |
| Pino 38 | PTI7 — Port I bit 7 |
| Pino 39 | USB_DP — USB D+ data line |
| Pino 40 | USB_DM — USB D- data line |
| Pino 41 | VDD_USB — USB transceiver supply (3.3V) |
| Pino 42 | VSS_USB — USB transceiver ground |
| Pino 43 | PTA0 — Port A bit 0 |
| Pino 44 | PTA1 — Port A bit 1 |
| Pino 45 | PTA2 — Port A bit 2 |
| Pino 46 | PTA3 — Port A bit 3 |
| Pino 47 | PTA4 — Port A bit 4 |
| Pino 48 | PTA5 — Port A bit 5 |
| Pino 49 | PTA6 — Port A bit 6 |
| Pino 50 | PTA7 — Port A bit 7 |
| Pino 51 | PTB0/AD0 — Port B bit 0 / ADC channel 0 |
| Pino 52 | PTB1/AD1 — Port B bit 1 / ADC channel 1 |
| Pino 53 | PTB2/AD2 — Port B bit 2 / ADC channel 2 |
| Pino 54 | PTB3/AD3 — Port B bit 3 / ADC channel 3 |
| Pino 55 | PTB4/AD4 — Port B bit 4 / ADC channel 4 |
| Pino 56 | PTB5/AD5 — Port B bit 5 / ADC channel 5 |
| Pino 57 | PTB6/AD6 — Port B bit 6 / ADC channel 6 |
| Pino 58 | PTB7/AD7 — Port B bit 7 / ADC channel 7 |
| Pino 59 | PTC0/AD8 — Port C bit 0 / ADC channel 8 |
| Pino 60 | PTC1/AD9 — Port C bit 1 / ADC channel 9 |
| Pino 61 | PTC2/AD10 — Port C bit 2 / ADC channel 10 |
| Pino 62 | PTC3/AD11 — Port C bit 3 / ADC channel 11 |
| Pino 63 | PTC4/AD12 — Port C bit 4 / ADC channel 12 |
| Pino 64 | PTC5/AD13 — Port C bit 5 / ADC channel 13 |
| Pino 65 | PTC6/AD14 — Port C bit 6 / ADC channel 14 |
| Pino 66 | PTC7/AD15 — Port C bit 7 / ADC channel 15 |
| Pino 67 | PTD0/AD16/DAC0 — Port D bit 0 / ADC channel 16 / DAC output |
| Pino 68 | PTD1/AD17/DAC1 — Port D bit 1 / ADC channel 17 / DAC output |
| Pino 69 | PTD2/AD18 — Port D bit 2 / ADC channel 18 |
| Pino 70 | PTD3/AD19 — Port D bit 3 / ADC channel 19 |
| Pino 71 | PTD4 — Port D bit 4 |
| Pino 72 | PTD5 — Port D bit 5 |
| Pino 73 | PTD6 — Port D bit 6 |
| Pino 74 | PTD7 — Port D bit 7 |
| Pino 75 | RESET — External reset input (active low) |
| Pino 76 | TCLK/PTA7 — Debug clock / PTA7 alternate |
| Pino 77 | TDI/PTA1 — JTAG TDI / PTA1 alternate |
| Pino 78 | TDO/PTA2 — JTAG TDO / PTA2 alternate |
| Pino 79 | TMS/PTA3 — JTAG TMS / PTA3 alternate |
| Pino 80 | TRST/PTA4 — JTAG TRST / PTA4 alternate |
Aplicações típicas
MCF51JE256CLK é adequado para 6 aplicaçãos: 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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para MCF51JE256CLK — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | 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 |
Principais diferenciais
- Integrated USB 2.0 Full-Speed OTG PHY (vs MCF51MM128VLK)
- Largest Flash in the JE family at 256KB (vs MCF51JE128VLK)
- Higher ADC channel count with integrated 12-bit DAC (vs MCF51AG96CLK)
Notas de projeto
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.
Informações de conformidade
RoHS and lead-free per NXP product page. Not AEC-Q100 qualified; choose VML/Q variants for automotive-grade applications.