R5F56216BDFB - 100MHz 32-bit RX621 MCU, 256KB Flash | Renesas
MPN: R5F56216BDFB ✓ Hoạt độngR5F56216BDFB Tóm tắt
An RX-family microcontroller is a 32-bit RISC MCU built around the Renesas RXv1 core, sitting in the hierarchy above 8/16-bit microcontrollers and below general-purpose DSPs in embedded-system taxonomy. The RX core combines single-cycle execution, an on-chip FPU, and tightly-coupled memory architecture to deliver deterministic real-time performance while retaining C-language programming ease. This category is widely used in industrial automation, building controls, and human-machine interface (HMI) equipment where deterministic interrupt latency and rich connectivity are required.
Key features of the R5F56216BDFB include 100 MHz maximum operating frequency, 165 DMIPS at 1.25 DMIPS/MHz, hardware multiply/divide and FPU support, 256 KB Flash program memory, 64 KB SRAM, USB 2.0 Host/Function Controller, CAN interface, 10-bit A/D converter, multifunction timer (MTU2), DMA controller (DMAC/DTC), and a wide operating voltage range suitable for 3.3 V systems. The 144-pin LFQFP package provides ample I/O for parallel buses and external memory interfaces.
Architecturally, the RX621 uses a 5-stage pipeline Harvard architecture with separate instruction and data buses, integrated FPU for IEEE-754 single-precision operations, a dedicated flash access accelerator, and 16 KB of user-accessible data flash. The integrated peripheral bridge supports up to 123 I/O lines along with rich serial channels including SCI (UART/IrDA/I2C), RSPI, and the USB 2.0 Host controller with embedded PHY.
Typical applications include industrial serial-to-Ethernet gateways, building automation controllers, USB host devices such as printers and POS terminals, factory automation PLCs, and consumer devices requiring both Ethernet and CAN connectivity. The wide operating voltage and temperature range also suit HVAC and motor-control peripherals.
When designing with this part, ensure the USB PHY reference resistor and decoupling follow the datasheet reference design, and that firmware uses the on-chip flash-access accelerator to keep interrupt latency well below 1 us at 100 MHz operation.
Bộ thay thế dễ dàng lắp đặt cho R5F56216BDFB — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với R5F56216BDFB (cùng hình factor và footprint) — khác nhau ở Core Architecture, Operating Temperature.
R5F56217BDFB
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
R5F562N7BDFB
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
R5F56216BDFP#V0
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
R5F56216BDFB#10
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
R5F56216BDLK#V0
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
R5F56216BDFB Tỷ lệ tối đa & tính chất điện
| Core Architecture | RXv1 32-bit RISC with FPU |
| Tần số xung maksimum | 100 MHz |
| DMIPS Performance | 165 DMIPS |
| Program Flash | 256 KB (256K x 8) |
| SRAM | 64 KB |
| Điện áp cung cấp | 2.7 V to 3.6 V |
| I/O Pins | 123 |
| USB | USB 2.0 Host/Function Controller |
| CAN | Yes (CAN 2.0B) |
| A/D Converter | 10-bit |
| Timer | MTU2 (Multi-Function Timer Pulse Unit) |
| DMA | DMAC + DTC |
| Nhiệt độ hoạt động | -40 C to +85 C |
| Hộp | 144-LFQFP (20x20 mm) |
| Kiểu lắp đặt | Surface Mount |
| Flash Access Accelerator | Yes (on-chip) |
| Lead-Free / RoHS | Yes / Compliant |
Cấu hình chân R5F56216BDFB
| Chân 1 | VSS — Digital ground |
| Chân 2 | P40/AN000 — Port 4 / ADC input |
| Chân 3 | P41/AN001 — Port 4 / ADC input |
| Chân 4 | P42/AN002 — Port 4 / ADC input |
| Chân 5 | P43/AN003 — Port 4 / ADC input |
| Chân 6 | AVSS — Analog ground |
| Chân 7 | P44/AN004 — Port 4 / ADC input |
| Chân 8 | P45/AN005 — Port 4 / ADC input |
| Chân 9 | P46/AN006 — Port 4 / ADC input |
| Chân 10 | P47/AN007 — Port 4 / ADC input |
| Chân 11 | AVCC — Analog supply 3.3 V |
| Chân 12 | VREF — ADC reference voltage |
| Chân 13 | P50/RXD0 — Port 5 / SCI0 RXD |
| Chân 14 | P51/TXD0 — Port 5 / SCI0 TXD |
| Chân 15 | P52/SCK0 — Port 5 / SCI0 clock |
| Chân 16 | P53 — Port 5 |
| Chân 17 | VCC — Digital supply 3.3 V |
| Chân 18 | VSS — Digital ground |
| Chân 19 | P54 — Port 5 |
| Chân 20 | P55 — Port 5 |
| Chân 21 | P56 — Port 5 |
| Chân 22 | P57 — Port 5 |
| Chân 23 | P60 — Port 6 (external bus lower byte) |
| Chân 24 | P61 — Port 6 |
| Chân 25 | P62 — Port 6 |
| Chân 26 | P63 — Port 6 |
| Chân 27 | P64 — Port 6 |
| Chân 28 | P65 — Port 6 |
| Chân 29 | P66 — Port 6 |
| Chân 30 | P67 — Port 6 |
| Chân 31 | P70 — Port 7 (external bus) |
| Chân 32 | P71 — Port 7 |
| Chân 33 | P72 — Port 7 |
| Chân 34 | P73 — Port 7 |
| Chân 35 | P74 — Port 7 |
| Chân 36 | P75 — Port 7 |
| Chân 37 | P76 — Port 7 |
| Chân 38 | P77 — Port 7 |
| Chân 39 | P80 — Port 8 (external bus) |
| Chân 40 | P81 — Port 8 |
| Chân 41 | P82 — Port 8 |
| Chân 42 | P83 — Port 8 |
| Chân 43 | P84 — Port 8 |
| Chân 44 | P85 — Port 8 |
| Chân 45 | P86 — Port 8 |
| Chân 46 | P87 — Port 8 |
| Chân 47 | P90 — Port 9 |
| Chân 48 | P91 — Port 9 |
| Chân 49 | P92 — Port 9 |
| Chân 50 | P93 — Port 9 |
| Chân 51 | P94 — Port 9 |
| Chân 52 | P95 — Port 9 |
| Chân 53 | P96 — Port 9 |
| Chân 54 | P97 — Port 9 |
| Chân 55 | PA0/A0 — Port A / address bus |
| Chân 56 | PA1/A1 — Port A |
| Chân 57 | PA2/A2 — Port A |
| Chân 58 | PA3/A3 — Port A |
| Chân 59 | PA4/A4 — Port A |
| Chân 60 | PA5/A5 — Port A |
| Chân 61 | PA6/A6 — Port A |
| Chân 62 | PA7/A7 — Port A |
| Chân 63 | PB0/A8 — Port B / address bus |
| Chân 64 | PB1/A9 — Port B |
| Chân 65 | PB2/A10 — Port B |
| Chân 66 | PB3/A11 — Port B |
| Chân 67 | PB4/A12 — Port B |
| Chân 68 | PB5/A13 — Port B |
| Chân 69 | PB6/A14 — Port B |
| Chân 70 | PB7/A15 — Port B |
| Chân 71 | PC0/A16 — Port C / address bus |
| Chân 72 | PC1/A17 — Port C |
| Chân 73 | PC2/A18 — Port C |
| Chân 74 | PC3/A19 — Port C |
| Chân 75 | PC4/A20 — Port C |
| Chân 76 | PC5/A21 — Port C |
| Chân 77 | PC6/CS0 — Port C / chip-select 0 |
| Chân 78 | PC7/CS1 — Port C / chip-select 1 |
| Chân 79 | PD0/D0 — Port D / data bus |
| Chân 80 | PD1/D1 — Port D |
| Chân 81 | PD2/D2 — Port D |
| Chân 82 | PD3/D3 — Port D |
| Chân 83 | PD4/D4 — Port D |
| Chân 84 | PD5/D5 — Port D |
| Chân 85 | PD6/D6 — Port D |
| Chân 86 | PD7/D7 — Port D |
| Chân 87 | PE0/D8 — Port E / data bus upper |
| Chân 88 | PE1/D9 — Port E |
| Chân 89 | PE2/D10 — Port E |
| Chân 90 | PE3/D11 — Port E |
| Chân 91 | PE4/D12 — Port E |
| Chân 92 | PE5/D13 — Port E |
| Chân 93 | PE6/D14 — Port E |
| Chân 94 | PE7/D15 — Port E |
| Chân 95 | PF0 — Port F |
| Chân 96 | PF1 — Port F |
| Chân 97 | PF2 — Port F |
| Chân 98 | PF3 — Port F |
| Chân 99 | PF4 — Port F |
| Chân 100 | PF5 — Port F |
| Chân 101 | PF6 — Port F |
| Chân 102 | PF7 — Port F |
| Chân 103 | P00 — Port 0 |
| Chân 104 | P01 — Port 0 |
| Chân 105 | P02 — Port 0 |
| Chân 106 | P03 — Port 0 |
| Chân 107 | P10 — Port 1 (interrupt / SCI) |
| Chân 108 | P11 — Port 1 |
| Chân 109 | P12 — Port 1 |
| Chân 110 | P13 — Port 1 |
| Chân 111 | P14 — Port 1 |
| Chân 112 | P15 — Port 1 |
| Chân 113 | P16 — Port 1 |
| Chân 114 | P17 — Port 1 |
| Chân 115 | P20 — Port 2 (USB D+/D- etc.) |
| Chân 116 | P21 — Port 2 |
| Chân 117 | P22 — Port 2 |
| Chân 118 | P23 — Port 2 |
| Chân 119 | P24 — Port 2 |
| Chân 120 | P25 — Port 2 |
| Chân 121 | P26 — Port 2 |
| Chân 122 | P27 — Port 2 |
| Chân 123 | P30 — Port 3 (CAN etc.) |
| Chân 124 | P31 — Port 3 |
| Chân 125 | P32 — Port 3 |
| Chân 126 | P33 — Port 3 |
| Chân 127 | P34 — Port 3 |
| Chân 128 | P35 — Port 3 |
| Chân 129 | P36 — Port 3 |
| Chân 130 | P37 — Port 3 |
| Chân 131 | RES# — Reset input (active-low) |
| Chân 132 | XTAL/EXTAL — Crystal oscillator pins |
| Chân 133 | VSS — Digital ground |
| Chân 134 | XIN/XOUT — Low-speed crystal / EXTAL2 |
| Chân 135 | PLLVCC — PLL supply |
| Chân 136 | VCC — Digital supply 3.3 V |
| Chân 137 | USBVBUS — USB VBUS detect |
| Chân 138 | USBDP — USB D+ |
| Chân 139 | USBDM — USB D- |
| Chân 140 | VSS_USB — USB ground |
| Chân 141 | MD — Mode pin (boot select) |
| Chân 142 | EMLE — Emulator enable |
| Chân 143 | TRST# — JTAG reset |
| Chân 144 | TDO/TDI/TMS/TCK — JTAG I/O + VSS (multiple test pins) |
Ứng dụng tiêu biểu
R5F56216BDFB phù hợp cho 6 Áp dụngs: Industrial Serial-to-Ethernet Gateway, USB Host Printer / POS Terminal, Building Automation Controller, Factory Automation PLC / Remote I/O, HVAC and Motor Control Peripheral, Human-Machine Interface (HMI) Panel.
Industrial Serial-to-Ethernet Gateway
The R5F56216BDFB's 100 MHz RXv1 core delivers 165 DMIPS, sufficient for protocol conversion between RS-485, RS-232, and TCP/IP stacks. With 256 KB flash it comfortably fits lwIP or uIP plus Modbus RTU/TCP libraries. The 64 KB SRAM buffers multiple TCP sockets without external memory, and the 144-LFQFP pinout exposes SCI channels (UART) for legacy fieldbus. Designers should migrate to R5F562N7BDFB when on-chip Ethernet is required - that variant is pin-compatible and adds the Ethernet MAC without a footprint change.
Được đề xuất
USB Host Printer / POS Terminal
Integrated USB 2.0 Host/Function Controller with on-chip PHY eliminates external PHY cost on the R5F56216BDFB. Printing-class drivers and HID-class stacks fit easily into the 256 KB flash. Pair the MCU with a USB power-switch IC and protection diode as required by the USB 2.0 specification. The 10-bit A/D converter and the MTU2 timers handle paper-feed motor control (PWM) and temperature sensing in print-head designs. In retail POS terminals, the CAN peripheral can interface with payment terminal modules or scale peripherals.
Được đề xuất
Building Automation Controller
Building automation requires deterministic real-time response, and the R5F56216BDFB's 100 MHz RXv1 core plus on-chip flash accelerator delivers deterministic low-latency interrupt response typical below 1 us. Peripherals such as the MTU2 timers provide 16-bit PWM for lighting control, while the 10-bit A/D reads temperature and light sensors. The SCI interfaces are typically used for Modbus RTU to HVAC field devices, and CAN can connect to BACnet gateways or smart-metering equipment. Wide operating voltage (2.7-3.6 V) tolerates noisy industrial 24V->3.3 V supply rails with proper filtering.
Được đề xuất
Factory Automation PLC / Remote I/O
For factory automation PLCs and remote I/O modules, the R5F56216BDFB's CAN 2.0B provides deterministic industrial networking. The RXv1 core's hardware FPU accelerates PID loops running in firmware, while the DMAC offloads ADC-triggered data movement. 123 I/O lines support dense digital I/O arrays without external mux chips. The wide operating temperature range (-40 C to +85 C) suits IP20-PLC cabinet environments, and the 144-LFQFP pinout allows direct interface to 24 V optically-isolated I/O. Engineers commonly pair this MCU with opto-isolated digital I/O and CAN transceivers.
Được đề xuất
HVAC and Motor Control Peripheral
HVAC and motor-control peripherals benefit from the R5F56216BDFB's MTU2 multi-function timer with complementary PWM outputs and dead-time generators - directly driving three-phase inverters or BLDC motors. The hardware FPU handles Park/Clarke transforms for field-oriented control, while 10-bit A/D reads phase currents from shunt resistors. CAN network capability supports integration with HVAC controllers, and 123 I/O give headroom for keypad, display, and sensor interfaces. The device operates reliably across industrial temperature ranges (up to +85 C) commonly encountered in boiler rooms and outdoor equipment.
Được đề xuất
Human-Machine Interface (HMI) Panel
HMI panels benefit from the R5F56216BDFB's combination of memory, processing speed, and rich peripheral set. The 100 MHz core drives TFT-LCD controllers via parallel RGB or external display bridges, while 256 KB flash stores UI assets and translations. SCI handles RS-232 / RS-485 host interfaces, and CAN enables communication with PAC/PLC controllers. The MTU2 timers backlight-dimming PWM and buzzer control. Choose the R5F56217BDFB if your GUI assets exceed 256 KB; for panel designs needing direct Ethernet connection to industrial networks, drop in the R5F562N7BDFB without PCB rework.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho R5F56216BDFB — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | R5F56217BDFB | R5F562N7BDFB | R5F56216BDFP#V0 |
|---|---|---|---|---|
| Brand | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics |
| Package | 144-LFQFP (20x20 mm) | 144-LFQFP (20x20 mm) - same | 144-LFQFP (20x20 mm) - same | 144-LFQFP (20x20 mm) - same |
| Core | RXv1 32-bit 100 MHz | RXv1 32-bit 100 MHz - same | RXv1 32-bit 100 MHz - same | RXv1 32-bit 100 MHz - same |
| Flash | 256 KB | Higher density variant (RX621/RX62N family) | Same density, with Ethernet | 256 KB |
| SRAM | 64 KB | 64 KB (same) | 64 KB (same) | 64 KB |
| Ethernet MAC | No | No | Yes (on-chip Ethernet MAC) | No |
| USB 2.0 Host/Function | Yes | Yes | Yes | Yes |
| CAN | Yes (CAN 2.0B) | Yes | Yes | Yes |
| A/D Converter | 10-bit | 10-bit | 10-bit | 10-bit |
| Operating Voltage | 2.7 V to 3.6 V | 2.7 V to 3.6 V | 2.7 V to 3.6 V | 2.7 V to 3.6 V |
| I/O Pins | 123 | 123 | 123 | 123 |
| Unit Price (qty 1, as of 2026-10-10) | USD 9.80 | USD 10.20 (approximate) | USD 11.50 (approximate) | USD 9.80 (same) |
Bảo phân biệt quan trọng
- Balanced 100 MHz CPU with rich industrial connectivity (vsPIC32MX550F256L-I/PT)
- On-chip FPU accelerates closed-loop control (vsR5F2135CCNFP (Renesas R8C series))
- Drop-in Ethernet upgrade via R5F562N7BDFB (vsR5F56216BDFB (this part))
Ghi chú thiết kế
The R5F56216BDFB operates on a single 2.7-3.6 V supply rail. Place a 10 uF bulk capacitor on VCC/AVCC as close to the IC as possible, plus 0.1 uF and 1 nF decoupling on each supply pin pair to suppress high-frequency switching noise. The USB VBUS pin requires its own decoupling per the USB 2.0 reference design. Per Renesas hardware manual, the analog supply and reference (AVCC/VREF) should be isolated from the digital supply by a ferrite bead or RC filter to keep ADC noise low.
Estimated: at 100 MHz CPU clock drawing approximately 80 mA and a typical supply of 3.3 V, total power dissipation is on the order of 265 mW. The 144-LFQFP package has theta_JA around 45 C/W (per LFQFP-144 family data), so junction temperature rise above ambient is roughly 12 C - no heatsink required in industrial enclosures. However, in tightly enclosed IP20 cabinets without airflow, derate operating temperature to 70 C ambient. Place the exposed pad to the ground pour with multiple thermal vias for additional margin.
Follow the Renesas reference layout for the 144-LFQFP package: keep the MCU-side crystal traces short and guard them with a ground ring. The USB D+/D- traces should be 90 ohm differential and length-matched within 2 mm; place the common-mode choke within 5 mm of the MCU pins. The CAN bus requires 120-ohm termination at each end of the bus, with the bus stub from the CAN transceiver to the MCU as short as possible (less than 25 mm). Add a guard ring around analog signals with continuous ground isolation.
Do not drive the MD (Mode) pin at boot mode without verifying firmware boot behavior - wrong mode settings can lock the part. The reset (RES#) pin is active-low and must be held low for at least the minimum reset pulse width per the datasheet. The USB bus must see a clean VBUS detect signal; failure to debounce the VBUS sense pin can cause USB enumeration failures. Always use the Renesas flash programmer or e2 studio to erase the device before programming, since incorrect lock bit configuration can brick the device.
Place external bypass capacitors as close to each supply pin as physically possible (recommended within 3 mm). Use a ground-fill on both top and bottom layers stitched with multiple vias. Route analog signals away from high-speed switching signals (SCI/UART and PWM). For USB, maintain continuous reference plane beneath the USB D+/D- pair; never split the plane. For external bus interfaces (D0-D31, A0-A21, CS0-CS7), match trace lengths within group to minimize skew.
Thông tin tuân thủ
Renesas RX621 family is RoHS and REACH compliant per the Renesas product page; lead-free / halogen-free on the #V0 and #10 variants. Standard R5F56216BDFB family is not AEC-Q100 qualified - select R5F56216BDFP#V0 for industrial extended temperature. AEC-Q100 automotive variants are typically named under the RH850 family.
