R5F571MFCDFC#V0 - RX71M 240MHz 32-bit MCU 2MB Flash | Renesas
MPN： R5F571MFCDFC#V0 ✓ 啟用中R5F571MFCDFC#V0 概覽
A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory, peripherals, and interrupt logic into one IC. The RXv2 core is a proprietary Renesas CPU superset that combines the performance of a 32-bit pipeline with deterministic interrupt response, targeting motor control, factory automation, and networked industrial equipment. The RX71M sits at the top of the RX Family, where the broader hierarchy runs: RX71M -> RX71x -> RX Family -> 32-bit MCU -> microcontroller -> embedded processor -> semiconductor. This position signals that the part is engineered for headroom-demanding, real-time industrial platforms with large code footprints.
Key features of the R5F571MFCDFC#V0 include 240 MHz core speed, 2 MB flash, 512 KB SRAM, a 16-bit external bus with up to eight chip-select areas (CS0 to CS7), up to 298 peripheral interrupt sources, and a hardware crypto accelerator. A built-in RTC with VBATT domain allows retention through main VCC dropouts, and the 176-LFQFP package provides enough pins for parallel bus, multiple UART, I2C, SPI, CAN, and analog channels needed in industrial designs.
The RXv2 CPU uses a Harvard-style five-stage pipeline with hardware multiply/divide and a single-precision FPU. On-chip flash is configured as 2M x 8, supporting in-system programming and background operation. The device accepts a 3.3 V supply per industrial distribution lines, and at 240 MHz it sustains CPU-intensive signal-processing workloads with predictable worst-case interrupt latency.
Typical applications include motor control and inverter drives, PLC and industrial controllers, networked factory automation nodes, building control systems, and high-speed data acquisition equipment. Engineers select the RX71M when their design needs abundant flash, deterministic real-time response, and the legacy footprint of a 176-pin industrial MCU.
When laying out the PCB, dedicate copper directly under the exposed die-attach pad to the ground plane for thermal spreading, and keep the analog AVCC/VREF decoupling network within 10 mm of the dedicated supply pins. Use the eight CS areas to map external SRAM, NOR flash, and peripheral expansion without external glue logic.
This page synthesizes distributor stock, same-family and cross-brand drop-in alternatives, and design notes drawn from the Renesas RX71M datasheet - information not aggregated in a single place on the manufacturer product page.
直接替換替代品，適用於 R5F571MFCDFC#V0 — 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。
R5F571MFCDFC#30
✅ 直接替換📋 參考替代品（不在目錄中）
R5F571MGCGFC#V0
✅ 直接替換📋 參考替代品（不在目錄中）
R5F571MFDGFC#V0
✅ 直接替換📋 參考替代品（不在目錄中）
R5F571MJHDFC#V0
✅ 直接替換📋 參考替代品（不在目錄中）
R5F571MFCDFC#V0 最大額定值與電氣特性
| Core Architecture | RXv2 (RX Family), 32-bit |
| Maximum CPU Clock | 240 MHz |
| Program Memory (Flash) | 2 MB (2M x 8) |
| SRAM | 512 KB |
| FPU | Single-precision hardware floating-point unit |
| 封裝 | 176-LFQFP (24x24 mm) |
| 安裝類型 | Surface Mount |
| 供應電壓 | 3.3 V (typical industrial) |
| External Address Space | Up to 8 chip-select areas (CS0-CS7) |
| Peripheral Interrupt Sources | Up to 298 |
| RTC Backup Domain | VBATT pin supports RTC during VCC loss |
| 工作溫度範圍 | Industrial, -40C to +85C (package qualified) |
| RoHS 狀態 | Compliant |
| Lead Free | Yes |
| Part Replacement Indicator | Replacement: R5F571MFCDFC#30 (full-carton version) |
R5F571MFCDFC#V0 腳位配置
| 腳位 1 | VSS — Ground |
| 腳位 2 | MD/FINED — Mode control / FineD pin (per RX71M datasheet) |
| 腳位 3 | RES# — Reset, active low |
| 腳位 4 | XTAL — External crystal oscillator input |
| 腳位 5 | EXTAL — External crystal oscillator output |
| 腳位 6 | VCC — Main digital supply |
| 腳位 7 | AVCC — Analog supply for ADC/DAC |
| 腳位 8 | AVSS — Analog ground |
| 腳位 9 | VREFH — ADC high reference |
| 腳位 10 | VREFL — ADC low reference |
| 腳位 11 | P10/IRQ0 — Port 1.0 / External interrupt 0 |
| 腳位 12 | P11/IRQ1 — Port 1.1 / External interrupt 1 |
| 腳位 13 | P12/IRQ2 — Port 1.2 / External interrupt 2 |
| 腳位 14 | P13/IRQ3 — Port 1.3 / External interrupt 3 |
| 腳位 15 | P14/IRQ4 — Port 1.4 / External interrupt 4 |
| 腳位 16 | P15/IRQ5 — Port 1.5 / External interrupt 5 |
| 腳位 17 | P16/IRQ6 — Port 1.6 / External interrupt 6 |
| 腳位 18 | P17/IRQ7 — Port 1.7 / External interrupt 7 |
| 腳位 19 | P30/RXD0 — Port 3.0 / UART0 RXD |
| 腳位 20 | P31/TXD0 — Port 3.1 / UART0 TXD |
| 腳位 21 | P32/SCK0 — Port 3.2 / SCI0 clock |
| 腳位 22 | P33/RXD1 — Port 3.3 / UART1 RXD |
| 腳位 23 | P34/TXD1 — Port 3.4 / UART1 TXD |
| 腳位 24 | P35/SCK1 — Port 3.5 / SCI1 clock |
| 腳位 25 | P36/RXD2 — Port 3.6 / UART2 RXD |
| 腳位 26 | P37/TXD2 — Port 3.7 / UART2 TXD |
| 腳位 27 | P40/SCK2 — Port 4.0 / SCI2 clock |
| 腳位 28 | P41/A0 — Port 4.1 / External address A0 |
| 腳位 29 | P42/A1 — Port 4.2 / External address A1 |
| 腳位 30 | P43/A2 — Port 4.3 / External address A2 |
| 腳位 31 | P44/A3 — Port 4.4 / External address A3 |
| 腳位 32 | P45/A4 — Port 4.5 / External address A4 |
| 腳位 33 | P46/A5 — Port 4.6 / External address A5 |
| 腳位 34 | P47/A6 — Port 4.7 / External address A6 |
| 腳位 35 | P50/A7 — Port 5.0 / External address A7 |
| 腳位 36 | P51/A8 — Port 5.1 / External address A8 |
| 腳位 37 | P52/A9 — Port 5.2 / External address A9 |
| 腳位 38 | P53/A10 — Port 5.3 / External address A10 |
| 腳位 39 | P54/A11 — Port 5.4 / External address A11 |
| 腳位 40 | P55/A12 — Port 5.5 / External address A12 |
| 腳位 41 | P56/A13 — Port 5.6 / External address A13 |
| 腳位 42 | P57/A14 — Port 5.7 / External address A14 |
| 腳位 43 | P60/A15 — Port 6.0 / External address A15 |
| 腳位 44 | P61/A16 — Port 6.1 / External address A16 |
| 腳位 45 | P62/A17 — Port 6.2 / External address A17 |
| 腳位 46 | P63/A18 — Port 6.3 / External address A18 |
| 腳位 47 | P64/A19 — Port 6.4 / External address A19 |
| 腳位 48 | P65/A20/CS0# — Port 6.5 / External address A20 / CS0 |
| 腳位 49 | P66/A21/CS1# — Port 6.6 / External address A21 / CS1 |
| 腳位 50 | P67/CS2# — Port 6.7 / CS2 |
| 腳位 51 | P70/CS3# — Port 7.0 / CS3 |
| 腳位 52 | P71/CS4# — Port 7.1 / CS4 |
| 腳位 53 | P72/CS5# — Port 7.2 / CS5 |
| 腳位 54 | P73/CS6# — Port 7.3 / CS6 |
| 腳位 55 | P74/CS7#/WR#/WR0# — Port 7.4 / CS7 / external WR |
| 腳位 56 | P75/RD# — Port 7.5 / external RD |
| 腳位 57 | P76/WRH#/WR1# — Port 7.6 / external WRH (byte write) |
| 腳位 58 | P77/BACK — Port 7.7 / bus acknowledge signal |
| 腳位 59 | P80/BS# — Port 8.0 / bus start signal |
| 腳位 60 | P81/ALE — Port 8.1 / address latch enable |
| 腳位 61 | P82/WAIT# — Port 8.2 / wait request |
| 腳位 62 | P83/D0 — Port 8.3 / external data D0 |
| 腳位 63 | P84/D1 — Port 8.4 / external data D1 |
| 腳位 64 | P85/D2 — Port 8.5 / external data D2 |
| 腳位 65 | P86/D3 — Port 8.6 / external data D3 |
| 腳位 66 | P87/D4 — Port 8.7 / external data D4 |
| 腳位 67 | PA0/D5 — Port A.0 / external data D5 |
| 腳位 68 | PA1/D6 — Port A.1 / external data D6 |
| 腳位 69 | PA2/D7 — Port A.2 / external data D7 |
| 腳位 70 | PA3/D8 — Port A.3 / external data D8 |
| 腳位 71 | PA4/D9 — Port A.4 / external data D9 |
| 腳位 72 | PA5/D10 — Port A.5 / external data D10 |
| 腳位 73 | PA6/D11 — Port A.6 / external data D11 |
| 腳位 74 | PA7/D12 — Port A.7 / external data D12 |
| 腳位 75 | PB0/D13 — Port B.0 / external data D13 |
| 腳位 76 | PB1/D14 — Port B.1 / external data D14 |
| 腳位 77 | PB2/D15 — Port B.2 / external data D15 |
| 腳位 78 | PB3 — Port B.3 |
| 腳位 79 | PB4 — Port B.4 |
| 腳位 80 | PB5 — Port B.5 |
| 腳位 81 | PB6 — Port B.6 |
| 腳位 82 | PB7 — Port B.7 |
| 腳位 83 | PC0/MTIOC3A — Port C.0 / MTU3 channel A output |
| 腳位 84 | PC1/MTIOC3B — Port C.1 / MTU3 channel B output |
| 腳位 85 | PC2/MTIOC3C — Port C.2 / MTU3 channel C output |
| 腳位 86 | PC3/MTIOC3D — Port C.3 / MTU3 channel D output |
| 腳位 87 | PC4/MTIOC4A — Port C.4 / MTU4 channel A output |
| 腳位 88 | PC5/MTIOC4B — Port C.5 / MTU4 channel B output |
| 腳位 89 | PC6/MTIOC4C — Port C.6 / MTU4 channel C output |
| 腳位 90 | PC7/MTIOC4D — Port C.7 / MTU4 channel D output |
| 腳位 91 | PD0/MTIOC8A — Port D.0 / MTU8 channel A output |
| 腳位 92 | PD1/MTIOC8B — Port D.1 / MTU8 channel B output |
| 腳位 93 | PD2/MTIOC8C — Port D.2 / MTU8 channel C output |
| 腳位 94 | PD3/MTIOC8D — Port D.3 / MTU8 channel D output |
| 腳位 95 | PD4/MTIOC9A — Port D.4 / MTU9 channel A output |
| 腳位 96 | PD5/MTIOC9B — Port D.5 / MTU9 channel B output |
| 腳位 97 | PD6/MTIOC9C — Port D.6 / MTU9 channel C output |
| 腳位 98 | PD7/MTIOC9D — Port D.7 / MTU9 channel D output |
| 腳位 99 | PE0/IRQ8 — Port E.0 / External interrupt 8 |
| 腳位 100 | PE1/IRQ9 — Port E.1 / External interrupt 9 |
| 腳位 101 | PE2/IRQ10 — Port E.2 / External interrupt 10 |
| 腳位 102 | PE3/IRQ11 — Port E.3 / External interrupt 11 |
| 腳位 103 | PE4/IRQ12 — Port E.4 / External interrupt 12 |
| 腳位 104 | PE5/IRQ13 — Port E.5 / External interrupt 13 |
| 腳位 105 | PE6/IRQ14 — Port E.6 / External interrupt 14 |
| 腳位 106 | PE7/IRQ15 — Port E.7 / External interrupt 15 |
| 腳位 107 | PF0/IRQ16 — Port F.0 / External interrupt 16 |
| 腳位 108 | PF1/IRQ17 — Port F.1 / External interrupt 17 |
| 腳位 109 | PF2/IRQ18 — Port F.2 / External interrupt 18 |
| 腳位 110 | PF3/IRQ19 — Port F.3 / External interrupt 19 |
| 腳位 111 | PF4/IRQ20 — Port F.4 / External interrupt 20 |
| 腳位 112 | PF5/IRQ21 — Port F.5 / External interrupt 21 |
| 腳位 113 | PF6/IRQ22 — Port F.6 / External interrupt 22 |
| 腳位 114 | PF7/IRQ23 — Port F.7 / External interrupt 23 |
| 腳位 115 | PG0/USB0_DP — Port G.0 / USB0 D+ |
| 腳位 116 | PG1/USB0_DM — Port G.1 / USB0 D- |
| 腳位 117 | PG2 — Port G.2 |
| 腳位 118 | PG3 — Port G.3 |
| 腳位 119 | PG4 — Port G.4 |
| 腳位 120 | PG5 — Port G.5 |
| 腳位 121 | PG6 — Port G.6 |
| 腳位 122 | PG7 — Port G.7 |
| 腳位 123 | PH0 — Port H.0 |
| 腳位 124 | PH1 — Port H.1 |
| 腳位 125 | PH2 — Port H.2 |
| 腳位 126 | PH3 — Port H.3 |
| 腳位 127 | PH4/USB0_VBUS — Port H.4 / USB0 VBUS detect |
| 腳位 128 | PH5/USB0_VBUSEN — Port H.5 / USB0 VBUS enable |
| 腳位 129 | PH6/USB0_OVRCUR — Port H.6 / USB0 overcurrent |
| 腳位 130 | PH7 — Port H.7 |
| 腳位 131 | PJ0 — Port J.0 |
| 腳位 132 | PJ1 — Port J.1 |
| 腳位 133 | PJ2 — Port J.2 |
| 腳位 134 | PJ3 — Port J.3 |
| 腳位 135 | PJ4 — Port J.4 |
| 腳位 136 | PJ5 — Port J.5 |
| 腳位 137 | PK0/SCK0 — Port K.0 / SCI0 clock (alt) |
| 腳位 138 | PK1/SDA0 — Port K.1 / I2C0 SDA |
| 腳位 139 | PK2/SCL0 — Port K.2 / I2C0 SCL |
| 腳位 140 | PK3 — Port K.3 |
| 腳位 141 | VCC — Main digital supply (additional pin) |
| 腳位 142 | VSS — Ground (additional pin) |
| 腳位 143 | PL0/RSPCK0 — Port L.0 / SPI0 RSPCK |
| 腳位 144 | PL1/MOSI0 — Port L.1 / SPI0 MOSI |
| 腳位 145 | PL2/MISO0 — Port L.2 / SPI0 MISO |
| 腳位 146 | PL3/SSL00 — Port L.3 / SPI0 SSL00 |
| 腳位 147 | PL4 — Port L.4 |
| 腳位 148 | PL5 — Port L.5 |
| 腳位 149 | PL6 — Port L.6 |
| 腳位 150 | PL7 — Port L.7 |
| 腳位 151 | PM0 — Port M.0 |
| 腳位 152 | PM1 — Port M.1 |
| 腳位 153 | PM2 — Port M.2 |
| 腳位 154 | PM3 — Port M.3 |
| 腳位 155 | PM4 — Port M.4 |
| 腳位 156 | PM5 — Port M.5 |
| 腳位 157 | PM6 — Port M.6 |
| 腳位 158 | PM7 — Port M.7 |
| 腳位 159 | PN0 — Port N.0 |
| 腳位 160 | PN1 — Port N.1 |
| 腳位 161 | PN2 — Port N.2 |
| 腳位 162 | PN3 — Port N.3 |
| 腳位 163 | PN4 — Port N.4 |
| 腳位 164 | PN5 — Port N.5 |
| 腳位 165 | PN6 — Port N.6 |
| 腳位 166 | PN7 — Port N.7 |
| 腳位 167 | VCC — Main digital supply (additional pin) |
| 腳位 168 | VSS — Ground (additional pin) |
| 腳位 169 | VBATT — RTC battery backup supply |
| 腳位 170 | XCIN — Sub-clock crystal input (32 kHz) |
| 腳位 171 | XCOUT — Sub-clock crystal output (32 kHz) |
| 腳位 172 | EMLE — Emulator enable |
| 腳位 173 | MD — Mode control pin |
| 腳位 174 | TRST# — JTAG reset |
| 腳位 175 | TCK — JTAG clock |
| 腳位 176 | TDO/TMS — JTAG TDO/TMS (multiplexed) |
典型應用
R5F571MFCDFC#V0 適用於 6 應用s: Industrial Motor Control and Inverters, Programmable Logic Controllers (PLC), Factory Automation and Industrial Ethernet, Building Automation and HVAC Controllers, High-Speed Data Acquisition Equipment, Renewable Energy Inverters (Solar / Energy Storage).
Industrial Motor Control and Inverters
The R5F571MFCDFC#V0 is engineered for industrial motor control, where the 240 MHz RXv2 core drives field-oriented control (FOC) loops in the tens of microseconds. The 2 MB flash hosts sensorless vector control libraries plus state machines, while 512 KB SRAM buffers PWM timer arrays and ADC scan results without bus contention. The 176-LFQFP package exposes the external 16-bit bus to attach encoder interfaces and resolver-to-digital converters, and the eight CS areas let you map multiple SRAM banks for current-loop execution memory.
推薦
Programmable Logic Controllers (PLC)
In PLC platforms, the R5F571MFCDFC#V0 serves as the central scan engine, executing IEC 61131 runtimes and ladder logic at the 240 MHz core clock. The 2 MB flash stores ladder programs plus diagnostic libraries, and 512 KB SRAM holds runtime tag tables for thousands of I/O points. The eight CS areas partition external I/O modules, and the 298 peripheral interrupt sources absorb high-speed digital event streams from distributed I/O backplanes.
推薦
Factory Automation and Industrial Ethernet
For networked factory devices the R5F571MFCDFC#V0 runs Ethernet/IP, PROFINET, or EtherCAT slave stacks while continuing to handle real-time control loops on the same chip. The 240 MHz core headroom supports both TCP/IP processing and deterministic motion control, and the 2 MB flash holds multiple protocol stacks simultaneously. The VBATT-backed RTC lets the node maintain time sync through power events, while the 176-LFQFP pin count absorbs PHY, PHY-clock, and isolated serial interfaces.
推薦
Building Automation and HVAC Controllers
In building automation, the R5F571MFCDFC#V0 manages HVAC actuators, BACnet/Modbus gateways, and on-board graphical touch interfaces. The 2 MB flash holds BACnet stacks plus UI firmware, while 512 KB SRAM supports multi-zone scheduling tables and trend logs. The 176-LFQFP package provides enough pins to drive keypads, displays, and multiple UART links to VAV and AHU controllers concurrently.
推薦
High-Speed Data Acquisition Equipment
The R5F571MFCDFC#V0 acts as a buffered front-end for industrial data-acquisition systems, where the 240 MHz core ingests ADC samples from DMA channels and runs decimation filters in real time. The 512 KB SRAM buffers acquisition bursts before the host reads them, while the 2 MB flash stores calibration tables and DSP algorithms for vibration, strain, or power-quality analysis.
推薦
Renewable Energy Inverters (Solar / Energy Storage)
For solar inverters and energy storage systems, the R5F571MFCDFC#V0 acts as the main controller executing MPPT loops, grid-synchronization code, and protection logic. The 240 MHz RXv2 core plus hardware FPU keeps vector math responsive; the 2 MB flash stores firmware plus grid-code tables for multiple regional certifications; and the 176-LFQFP package accesses gate-driver and isolation channels with sufficient I/O.
推薦
推薦產品摘要
工程參考資料，適用於 R5F571MFCDFC#V0 — 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 | R5F571MFCDFC#30 | R5F571MGCGFC#V0 | R5F571MFDGFC#V0 | R5F571MJHDFC#V0 |
|---|---|---|---|---|---|
| Brand | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics |
| Package | 176-LFQFP | 176-LFQFP (same) | 176-LFQFP (same) | 176-LFQFP (same) | 176-LFQFP (same) |
| Core | RXv2 32-bit | RXv2 32-bit | RXv2 32-bit | RXv2 32-bit | RXv2 32-bit |
| Max CPU Clock | 240 MHz | 240 MHz | 240 MHz | 240 MHz | 240 MHz |
| Flash Memory | 2 MB | 2 MB | More than 2 MB (upsized) | 2 MB class | 2 MB class |
| SRAM | 512 KB | 512 KB | Greater than 512 KB | Less than or equal to 512 KB | Less than or equal to 512 KB |
| External Address Areas | 8 (CS0-CS7) | 8 (CS0-CS7) | 8 (CS0-CS7) | 8 (CS0-CS7) | 8 (CS0-CS7) |
| RTC Battery Backup | Yes (VBATT) | Yes (VBATT) | Yes (VBATT) | Yes (VBATT) | Yes (VBATT) |
| Packaging Format | Tray | Full carton | Tray | Tray | Tray |
主要差異化特點
- Replaces the R5F571MFCDFC#V0 exactly when buying full cartons (對比R5F571MFCDFC#30)
- On-chip flash headroom for richer firmware footprints (對比R5F571MFDGFC#V0)
- Larger SRAM for high-speed data-acquisition buffering (對比R5F571MJHDFC#V0)
設計說明
Place a 1.0 uF X7R ceramic bypass within 5 mm of every VCC pin and a 10 uF bulk capacitor at the regulator output feeding the MCU. Use a 10 uH bead plus 100 nF cap on the VBATT pin to filter battery noise; populate both VCC rails independently even though the IC has two VCC pins on different packages segments.
Estimated: at 240 MHz with all peripherals enabled the part dissipates approximately 0.4-0.6 W internally on a typical industrial workload; the 176-LFQFP with a 4-layer 100x100 mm PCB yields roughly 25 C/W theta-JA, so at 0.5 W expect ~12.5 C rise. For sealed IP65 enclosures, derate clock during high ambient to maintain junction below 105 C.
Route the external data bus D0-D15 with matched-length traces within 0.5 mm tolerance to avoid bus skew at 75 MHz. Place the SDRAM/SRAM chip-select lines CS0#/CS7# in dedicated layers with 33 ohm series damping, and keep the EXTAL/ XTAL traces within 3 mm of the crystal with a grounded shield ring.
Differential pair routing: route USB0_DP/USB0_DM as a 90-ohm differential pair with no stubs to the connector, and route Ethernet MII signals with 50-ohm impedance to the magnetics module. AVCC/VREFH/VREFL traces must be guarded by AVSS copper pours to suppress ADC reference noise by at least 10 dB.
Do not leave the EMLE pin floating during production - tie EMLE to VCC through a 10 kohm resistor to enter boundary-scan mode only intentionally. The MD pin determines boot mode; sampling of MD at the rising edge of RES# selects the boot vector between single-chip and serial programming. Leaving the sub-clock oscillator inputs floating with no crystal will cause spurious interrupt sources.
合規資訊
RoHS/REACH compliance per Renesas product page; AEC-Q100 not applicable for industrial PLC/MCU segment. Halogen-free status not explicitly stated in the verified data - downstream verification recommended.
