PCF51QU64VLF - Coldfire V1 MCU 32-Bit 50MHz 64KB Flash 48-LQFP | NXP Semiconductors
N.º da peça: PCF51QU64VLF ✗ Fim de vida| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $4.4973 | $4,50 |
| 10 | $4.05 | $40,50 |
| 100 | $3.62 | $362,00 |
| 500 | $3.18 | $1.590,00 |
| 1.000 | $2.79 | $2.790,00 |
PCF51QU64VLF Visão geral
A microcontroller (MCU) is a single-chip computer that combines a CPU core, program and working memory, peripherals, and I/O on one die. The Coldfire V1 core is an NXP-specific implementation of a variable-length RISC architecture derived from the original Coldfire line, optimized for deterministic embedded control with low power consumption. MCUs sit hierarchically beneath microprocessors and systems-on-chip, and they dominate the embedded controller category in industrial, appliance, and consumer products.
Key specifications include 64KB (64K x 8) embedded flash memory, 35 general-purpose I/O lines, and a peripheral set featuring DMA, LVD (low-voltage detect), POR (power-on reset), PWM channels, and an EBI/EMI external bus interface. Connectivity options include one I2C bus, one SPI bus, and one UART/USART channel. The device is characterized for a supply voltage range from 1.8V to 3.6V (with flash write voltage range specified separately), and operates across an extended industrial temperature range.
The Coldfire V1 core implements a single-cycle multiply-accumulate and a tightly-coupled peripheral bridge, enabling deterministic interrupt latency suitable for motor control and power conversion loops. The 50MHz maximum CPU frequency yields approximately 50 MIPS of throughput, and the unified address space simplifies C-language firmware development with standard toolchains such as CodeWarrior.
Typical applications include industrial control modules, low-end consumer appliances, smart sensor nodes, and small-format human-machine interface boards. The combination of 64KB flash and an external bus makes the PCF51QU64VLF especially well suited to designs that must execute a real-time control loop while still communicating with external memory-mapped peripherals.
A critical design consideration is decoupling: place a 100nF ceramic bypass on each VDD/VSS pair within two millimeters of the package, and reserve a 4.7uF bulk capacitor near the regulator output. The external bus pins (EBI/EMI) require series termination when driving long PCB traces to avoid ringing.
This page synthesizes distributor stock, drop-in alternatives from the same Freescale/NXP MCF51Q family, and practical design notes not found on a single manufacturer product page.
Alternativas drop-in para PCF51QU64VLF — 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 PCF51QU64VLF (mesmo formato e footprint) — diferindo em Mounting Type, Operating Temperature Range, Supply Voltage Range.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
MCF51QU64VLF
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
MCF51JU64VLF
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
MK10DX64VLF5
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
PCF51QU64VLF Classificações máximas e características elétricas
| Core Processor | Coldfire V1 |
| Core Size | 32-Bit |
| Core Count | Single-Core |
| Maximum CPU Speed | 50 MHz |
| Program Memory Size | 64 KB (64K x 8) |
| Program Memory Type | FLASH |
| Number of I/O | 35 |
| Connectivity | EBI/EMI, I2C, SPI, UART/USART |
| Peripherals | DMA, LVD, POR, PWM |
| Supply Voltage Range | 1.8 V to 3.6 V |
| Faixa de temperatura de operação | -40C to +105C |
| Package Type | 48-LQFP (7x7 mm) |
| Tipo de montagem | Surface Mount |
| Lead Free / RoHS | Compliant per NXP product page |
| Series | MCF51Qx |
Configuração de pinos do PCF51QU64VLF
| Pino 1 | PTE0/TXD1 — Port E bit 0 / UART1 transmit |
| Pino 2 | PTE1/RXD1 — Port E bit 1 / UART1 receive |
| Pino 3 | PTE2 — Port E bit 2 GPIO |
| Pino 4 | PTE3 — Port E bit 3 GPIO |
| Pino 5 | VDD — Digital supply voltage |
| Pino 6 | VSS — Digital ground |
| Pino 7 | PTE4 — Port E bit 4 GPIO |
| Pino 8 | PTE5 — Port E bit 5 GPIO |
| Pino 9 | PTE6 — Port E bit 6 GPIO |
| Pino 10 | PTE7 — Port E bit 7 GPIO |
| Pino 11 | PTF0/3 — Port F bit 0/3 GPIO |
| Pino 12 | PTF1 — Port F bit 1 GPIO |
| Pino 13 | PTF2 — Port F bit 2 GPIO |
| Pino 14 | PTF3 — Port F bit 3 GPIO |
| Pino 15 | PTF4 — Port F bit 4 GPIO |
| Pino 16 | PTF5 — Port F bit 5 GPIO |
| Pino 17 | PTF6 — Port F bit 6 GPIO |
| Pino 18 | PTF7 — Port F bit 7 GPIO |
| Pino 19 | PTG0 — Port G bit 0 GPIO |
| Pino 20 | PTG1 — Port G bit 1 GPIO |
| Pino 21 | PTG2 — Port G bit 2 GPIO |
| Pino 22 | PTG3 — Port G bit 3 GPIO |
| Pino 23 | VDDA — Analog supply voltage |
| Pino 24 | VSSA — Analog ground |
| Pino 25 | PTA0 — Port A bit 0 GPIO |
| Pino 26 | PTA1 — Port A bit 1 GPIO |
| Pino 27 | PTA2 — Port A bit 2 GPIO |
| Pino 28 | PTA3 — Port A bit 3 GPIO |
| Pino 29 | PTA4 — Port A bit 4 GPIO |
| Pino 30 | PTA5 — Port A bit 5 GPIO |
| Pino 31 | PTA6 — Port A bit 6 GPIO |
| Pino 32 | PTA7 — Port A bit 7 GPIO |
| Pino 33 | PTB0 — Port B bit 0 GPIO |
| Pino 34 | PTB1 — Port B bit 1 GPIO |
| Pino 35 | PTB2 — Port B bit 2 GPIO |
| Pino 36 | PTB3 — Port B bit 3 GPIO |
| Pino 37 | PTB4 — Port B bit 4 GPIO |
| Pino 38 | PTB5 — Port B bit 5 GPIO |
| Pino 39 | PTB6 — Port B bit 6 GPIO |
| Pino 40 | PTB7 — Port B bit 7 GPIO |
| Pino 41 | PTC0 — Port C bit 0 GPIO |
| Pino 42 | PTC1 — Port C bit 1 GPIO |
| Pino 43 | PTC2 — Port C bit 2 GPIO |
| Pino 44 | PTC3 — Port C bit 3 GPIO |
| Pino 45 | PTD0 — Port D bit 0 GPIO |
| Pino 46 | PTD1 — Port D bit 1 GPIO |
| Pino 47 | RESET — Active-low reset input |
| Pino 48 | VSS — Digital ground |
Aplicações típicas
PCF51QU64VLF é adequado para 6 aplicaçãos: Industrial Control Modules, Low-End Consumer Appliances, Smart Sensor Hubs, Small HMI Boards, Battery-Powered Monitoring Devices, Motor Control Sub-Systems.
Industrial Control Modules
The PCF51QU64VLF is well matched to industrial control modules where deterministic interrupt latency and 50MHz of CPU throughput are required. The integrated DMA channels offload sensor polling and UART traffic, while the PWM outputs drive actuators, valves, and motor phases. The EBI/EMI controller extends the device to external SRAM for data logging, and the -40C to +105C temperature rating covers factory-floor environments without derating.
Recomendado
Low-End Consumer Appliances
The PCF51QU64VLF fits low-end consumer appliances such as coffee machines, dishwashers, and washing-machine control boards where 64KB of flash accommodates the user-interface firmware plus a control loop. The PWM channels drive motor phases or heating elements directly, while the I2C bus talks to temperature sensors and EEPROM. The 48-LQFP package is straightforward to assemble on a single-layer consumer-grade PCB.
Recomendado
Smart Sensor Hubs
The PCF51QU64VLF serves as a smart sensor hub aggregating data from I2C sensors, SPI sensors, and UART peripherals over its multi-protocol connectivity. The Coldfire V1 core executes on-sensor filtering and decision algorithms, while DMA reduces CPU overhead during high-rate sampling. The 64KB flash holds a real-time operating system kernel plus application logic, and the EBI bus can attach external flash for logging.
Recomendado
Small HMI Boards
The PCF51QU64VLF drives small human-machine interface boards that combine a character LCD, rotary encoder inputs, and a few push buttons. The 35 GPIO lines are sufficient for scan-matrix keypads and LED indicators, while the SPI bus interfaces to graphical LCD controllers. The 50MHz CPU keeps display refresh responsive without external graphics hardware.
Recomendado
Battery-Powered Monitoring Devices
The PCF51QU64VLF suits battery-powered monitoring devices such as remote telemetry units and portable instrumentation, where its LVD peripheral provides brownout protection across the 1.8V to 3.6V supply range. The Coldfire V1 core's efficient interrupt handling enables long sleep intervals between sensor reads, and the POR peripheral handles clean cold-start from a deeply discharged battery.
Recomendado
Motor Control Sub-Systems
The PCF51QU64VLF drives small motor control sub-systems such as BLDC fans, stepper-motor positioning stages, and small DC servo loops. Its PWM channels generate complementary switching signals for half-bridge drivers, while the DMA channels sample ADC readings at deterministic intervals. The EBI/EMI bus attaches an external encoder counter for position feedback in servo loops.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para PCF51QU64VLF — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | MCF51QU64VLF | MCF51JU64VLF | MK10DX64VLF5 |
|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 48-LQFP (7x7 mm) | 48-LQFP (7x7 mm) - same | 48-LQFP (7x7 mm) - same | 48-LQFP (7x7 mm) - same |
| Core | Coldfire V1 32-Bit | Coldfire V1 32-Bit | Coldfire V1 32-Bit | ARM Cortex-M4 32-Bit |
| Maximum CPU Speed | 50 MHz | 50 MHz | 50 MHz | 50 MHz |
| Program Flash | 64 KB | 64 KB | 64 KB | 64 KB |
| Lifecycle Status | Obsolete (pre-qualification sample) | Production | Active | Active |
| USB Peripheral | No | No | Yes (USB 2.0 FS) | Yes (USB 2.0 FS) |
Principais diferenciais
- Pre-qualification sample status with obsolete lifecycle marking (vs MCF51QU64VLF)
- USB peripheral availability in same 48-LQFP footprint (vs MCF51JU64VLF)
- Coldfire V1 core with deterministic interrupt latency (vs MK10DX64VLF5)
Notas de projeto
Place a 100nF ceramic bypass capacitor on each VDD/VSS pair within 2mm of the LQFP pins, and add a single 4.7uF bulk capacitor near the regulator output. The PCF51QU64VLF supply range is 1.8V to 3.6V; a low-dropout regulator such as NXP's MC33730 or a discrete LDO with adequate headroom is recommended for industrial designs. Use a star-ground topology when mixing analog and digital grounds to keep ADC readings clean.
The 48-LQFP package has a 0.5mm pitch and requires careful PCB layout - use 4-mil traces and 4-mil spaces between pads, with a ground pour on the opposite layer for shielding. The exposed pad (if present in your specific LQFP variant) should be soldered to a copper island connected to VSS for thermal relief. Avoid running noisy signal traces beneath the package body to minimize coupling into the analog domain.
Do not substitute the PCF51QU64VLF (pre-qualification sample) for the MCF51QU64VLF (production part) without confirming the firmware signature - production firmware signed against the PCF die may not boot on the MCF die if security fuses differ. For new designs, order the MCF51QU64VLF directly to avoid lifecycle risk since the PCF variant is now obsolete. Also note that the part has been marked obsolete - plan a migration to the Kinetis E-series MK10DX64VLF5 or the LPC1100 family for active production.
Informações de conformidade
RoHS and lead-free per NXP product page. AEC-Q100 not applicable - this part is not automotive qualified. The PCF51QU64VLF is now marked obsolete on multiple distributors; the production equivalent MCF51QU64VLF carries the same compliance status.