R5F571MLDDFC#10 - RX71M 240MHz 4MB Flash MCU | Renesas
N.º de pieza: R5F571MLDDFC#10 ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $14.66 | $14,66 |
| 10 | $13.6 | $136,00 |
| 100 | $12.7 | $1.270,00 |
| 500 | $11.9 | $5.950,00 |
| 1.000 | $11.2 | $11.200,00 |
R5F571MLDDFC#10 Descripción general
A microcontroller (MCU) is a single-chip embedded computer that integrates a processor core, memory, and peripherals such as timers, communication interfaces, and analog converters on one die. Within the embedded systems hierarchy, the RX71M sits in Renesas' high-performance RX family segment: microcontroller -> 32-bit microcontroller -> high-performance real-time engine class, positioned for industrial equipment that needs both high compute throughput and deterministic real-time response.
Key differentiating features include the RXv2 CPU core, an evolved form of the original RX core that maintains code compatibility with earlier RX devices while increasing instruction throughput. With 4 MB of flash and 512 KB of RAM, this device supports large, feature-rich firmware images, complex communication stacks, and motor-control algorithms without external memory. The 240 MHz clock rate enables single-cycle DSP-style multiply and fast interrupt handling suited to real-time control loops.
Technically, the RX71M integrates an external bus controller with eight chip-select areas (CS0 to CS7), each with independent access settings, plus 298 peripheral interrupt sources and a battery-backed VBATT input that keeps the real-time clock running when VCC drops. This combination targets applications that mix heavy computation with extensive I/O and timekeeping.
Typical applications include industrial equipment such as factory automation controllers, motor-driven systems, and networked human-machine interfaces, where the 240 MHz core and large on-chip memory reduce the need for external processors.
When designing with this MCU, budget power supply decoupling across the 176-pin package carefully and verify external memory timing on the chip-select bus for each CS area, since settings are independently configurable.
This page synthesizes distributor pricing from Mouser, DigiKey, and LCSC, family drop-in alternatives, and practical design guidance not found in the manufacturer datasheet alone.
Alternativas directas para R5F571MLDDFC#10 — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
R5F571MLCDFC#10
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
R5F571MLGGFC#V0
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
R5F564MLCDFC#V1
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
R5F564MLDDFC#V1
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
R5F571MLDDFC#10 Valores máximos y características eléctricas
| Core Processor | RXv2 |
| Core Size | 32-bit, single-core |
| Frecuencia de reloj máxima | 240 MHz |
| Program Memory Size | 4 MB (4M x 8) Flash |
| SRAM Size | 512 KB |
| Series | RX71M |
| Encapsulado | 176-LFQFP (24x24 mm) |
| Tipo de montaje | Surface Mount |
| Interrupt Sources | 298 peripheral interrupt sources |
| External Chip Selects | 8 areas (CS0 to CS7), independent access settings |
| Real-Time Clock Backup | VBATT pin supplies RTC when VCC drops |
| Core Architecture | RXv2, evolved RX core, code-compatible with previous RX devices |
| Product Status | Active |
Guía de configuración de pines de R5F571MLDDFC#10 176-lfqfp (24x24 mm)
Configuración de pines para R5F571MLDDFC#10 (encapsulado 176-lfqfp (24x24 mm)). Este CI digital incluye GPIO, interfaces de comunicación (UART, SPI, I2C) y pines de alimentación. Consulte la hoja de datos del fabricante para conocer las funciones alternativas de los pines y las opciones de configuración. Esencial para el diseño de sistemas embebidos y el diseño de PCB.
No hay datos detallados de patillaje disponibles para R5F571MLDDFC#10.
Consulte la hoja de datos para ver la configuración completa de patillas.
Aplicaciones típicas
R5F571MLDDFC#10 es adecuado para 6 aplicacións: Industrial Factory Automation Controllers, Motor Drive and Inverter Control, Networked HMI and Display Systems, Data Loggers and Battery-Backed Metering, Industrial Communication Gateways, Embedded Test and Measurement Equipment.
Industrial Factory Automation Controllers
The R5F571MLDDFC#10 fits factory automation controller boards where the 240 MHz RXv2 core must service deterministic control loops, 298 peripheral interrupt sources, and industrial communication stacks simultaneously. Its 4 MB flash hosts protocol stacks and application code without external program memory, while the 512 KB SRAM buffers process data and network frames. The eight independently configurable chip-select areas (CS0 to CS7) allow glueless attachment of external FPGA, display, or memory devices. Deployed between a 24V industrial supply front end and I/O drivers, the MCU trades lower clock rates of mainstream MCUs for single-cycle DSP throughput, cutting scan times on complex PLC-class logic.
Recomendado
Motor Drive and Inverter Control
In motor drive and inverter control, the R5F571MLDDFC#10 leverages its 240 MHz RXv2 core with high-throughput multiply performance to execute field-oriented control at fast loop rates, updating PWM with low jitter. The 298 interrupt sources allow prioritized handling of current-sense, fault, and encoder inputs, while 4 MB flash stores multi-motor firmware profiles and diagnostics. Positioned as the supervisory and control processor ahead of gate-driver ICs on the power stage, the MCU benefits from the RX71M's real-time engine class determinism. Compared with 100 MHz-class MCUs, the doubled clock halves control-loop execution time, enabling higher switching frequencies and smaller magnetics.
Recomendado
Networked HMI and Display Systems
For networked human-machine interface terminals, the R5F571MLDDFC#10 combines a 240 MHz core with 4 MB of flash and 512 KB of SRAM, enough to host graphics assets, a GUI framework, and the external bus controller drives display or touch peripherals via the eight chip-select areas with independent timing. The large flash supports multilingual and multi-protocol firmware images in a single device, avoiding external SPI flash. Sitting between the Ethernet PHY front end and the LCD driver chain, the MCU's interrupt richness keeps communication and rendering responsive. Its QFP-176 package supplies the pin count needed to fan out a display bus without multiplexers.
Recomendado
Data Loggers and Battery-Backed Metering
The R5F571MLDDFC#10 is well suited to industrial data loggers and metering equipment because its VBATT pin sustains the real-time clock when VCC drops, guaranteeing continuous, accurate timestamping through power interruptions per the RX71M datasheet. The 4 MB flash stores long logging histories locally without external nonvolatile memory, and the 512 KB SRAM provides write-caching. The MCU reads sensor front ends through its peripheral set and timestamps events via the battery-backed RTC. Compared with a discrete RTC plus MCU combination, the integrated VBATT feature removes a component, its I2C wiring, and its failure point, improving long-term reliability in unattended installations.
Recomendado
Industrial Communication Gateways
Protocol gateways converting between fieldbus systems benefit from the R5F571MLDDFC#10's combination of 240 MHz processing, 4 MB flash for multiple concurrent protocol stacks, and 298 interrupt sources for responsive message handling. The large SRAM buffers receive queues during burst traffic, and the eight independently configured chip-select areas can attach dual-port RAM or external memory-mapped interfaces for legacy bus bridging. Positioned between two network PHY/transceiver front ends, the MCU performs translation at wire speed for moderate-throughput industrial protocols. The RXv2 core's compatibility with earlier RX code lets teams reuse proven fieldbus firmware, shortening certification cycles versus porting to an unfamiliar architecture.
Recomendado
Embedded Test and Measurement Equipment
In embedded test instruments and measurement modules, the R5F571MLDDFC#10 provides the 240 MHz real-time processing needed for trigger management, waveform preprocessing, and instrument state machines, while 4 MB flash hosts calibration tables, measurement libraries, and USB or Ethernet communication firmware. The external bus controller with CS0-CS7 allows glueless attachment of high-speed acquisition memory or front-end ASICs, and the rich interrupt structure times acquisitions precisely. Placed between analog front-end converters and the user interface or PC link, the MCU consolidates control and communication. Its QFP-176 pin count supports parallel data buses that would otherwise require external logic on lower-pin devices.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para R5F571MLDDFC#10 — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | R5F571MLCDFC#10 | R5F571MLGGFC#V0 | R5F564MLCDFC#V1 |
|---|---|---|---|---|
| Package | 176-LFQFP (24x24 mm) | 176-LFQFP (24x24 mm) - same | 176-LFQFP (24x24 mm) - same | 176-LFQFP (24x24 mm) - same |
| Brand | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics |
| Series / Family | RX71M | RX71M | RX71M | RX64M |
| Core | RXv2, 32-bit | RXv2, 32-bit | RXv2, 32-bit | RXv2, 32-bit |
| Product Status | Active | Active | Active | Active |
Diferenciadores clave
- Maximum on-chip memory in the RX71M family (frente a R5F571MLCDFC#10)
- Glueless eight-area external bus (frente a R5F564MLCDFC#V1)
- Battery-backed RTC via VBATT pin (frente a R5F571MLGGFC#V0)
Notas de diseño
Provide clean, well-decoupled supply rails to the 176-pin LFQFP: place 100 nF ceramic decoupling capacitors at each VCC/VSS pin pair plus bulk capacitance near the package, and route VCC on an internal plane to minimize impedance. Because the RX71M core clocks at 240 MHz, switching currents are significant and ground bounce on the 0.5 mm-pitch pins can corrupt high-speed external bus cycles if return paths are poor. Estimated: with 8-10 VCC pairs sharing ~0.5-1 A peak core/I/O current, plane-based distribution keeps rail droop within typical MCU tolerance budgets.
The 24x24 mm QFP-176 has 0.5 mm lead pitch: specify 4-mil trace/4-mil clearance fan-out under the body and consider an escape pattern verified against the Renesas recommended land pattern in the RX71M datasheet. Keep crystal/oscillator traces short and guarded, and group the eight chip-select external bus signals (CS0-CS7, address, data) with matched lengths where access timing approaches datasheet limits. Add VBATT backup cell wiring per the RTC-backup circuit shown in the datasheet so timekeeping survives main supply interruptions.
Two frequent mistakes with this device: (1) treating the eight chip-select areas as uniformly configured - each of CS0 to CS7 has independent access settings, so mixed external memories with different timings require per-area setup in the bus controller, and a global assumption causes intermittent bus faults; (2) omitting the VBATT backup path - without it the RTC loses time whenever VCC drops, defeating battery-backed timekeeping. Also verify interrupt vector configuration across all 298 peripheral interrupt sources early, since priority mis-assignment in dense interrupt designs is a common root cause of latency issues.
Información de cumplimiento
Compliance details were not stated in the provided distributor snippets or Renesas product page excerpt; consult the official Renesas product page or datasheet for RoHS/REACH declarations.
