R5F56216BDFB - 100MHz 32-bit RX621 MCU, 256KB Flash | Renesas
MPN: R5F56216BDFB ✓ AktifR5F56216BDFB Ringkasan
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.
Alternatif penggantian untuk R5F56216BDFB — paket yang sama, pin-pada-pin kompatibel. Bagian paket yang berbeda memerlukan kerja ulang PCB diabaikan.
Variasi di dalam seri ini
Model-series yang sama yang kompatibel dengan penggantian R5F56216BDFB (sama faktor bentuk dan footprint) — berbeda di dalam Core Architecture, Operating Temperature.
R5F56217BDFB
✅ Drop-In📋 Alternatif referensi (tidak dalam katalog)
R5F562N7BDFB
✅ Drop-In📋 Alternatif referensi (tidak dalam katalog)
R5F56216BDFP#V0
✅ Drop-In📋 Alternatif referensi (tidak dalam katalog)
R5F56216BDFB#10
✅ Drop-In📋 Alternatif referensi (tidak dalam katalog)
R5F56216BDLK#V0
✅ Drop-In ⚠️ Spesifikasi Tidak Disahkan📋 Alternatif referensi (tidak dalam katalog)
R5F56216BDFB Rating Maksimal & Karakteristik Listrik
| Core Architecture | RXv1 32-bit RISC with FPU |
| Frekuensi Bawah Maximum | 100 MHz |
| DMIPS Performance | 165 DMIPS |
| Program Flash | 256 KB (256K x 8) |
| SRAM | 64 KB |
| Tegangan Pemuat | 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 |
| Suhu Kerja | -40 C to +85 C |
| Paket | 144-LFQFP (20x20 mm) |
| Tipe Mounting | Surface Mount |
| Flash Access Accelerator | Yes (on-chip) |
| Lead-Free / RoHS | Yes / Compliant |
Konfigurasi Pin R5F56216BDFB
| Pin produk 1 | VSS — Digital ground |
| Pin produk 2 | P40/AN000 — Port 4 / ADC input |
| Pin produk 3 | P41/AN001 — Port 4 / ADC input |
| Pin produk 4 | P42/AN002 — Port 4 / ADC input |
| Pin produk 5 | P43/AN003 — Port 4 / ADC input |
| Pin produk 6 | AVSS — Analog ground |
| Pin produk 7 | P44/AN004 — Port 4 / ADC input |
| Pin produk 8 | P45/AN005 — Port 4 / ADC input |
| Pin produk 9 | P46/AN006 — Port 4 / ADC input |
| Pin produk 10 | P47/AN007 — Port 4 / ADC input |
| Pin produk 11 | AVCC — Analog supply 3.3 V |
| Pin produk 12 | VREF — ADC reference voltage |
| Pin produk 13 | P50/RXD0 — Port 5 / SCI0 RXD |
| Pin produk 14 | P51/TXD0 — Port 5 / SCI0 TXD |
| Pin produk 15 | P52/SCK0 — Port 5 / SCI0 clock |
| Pin produk 16 | P53 — Port 5 |
| Pin produk 17 | VCC — Digital supply 3.3 V |
| Pin produk 18 | VSS — Digital ground |
| Pin produk 19 | P54 — Port 5 |
| Pin produk 20 | P55 — Port 5 |
| Pin produk 21 | P56 — Port 5 |
| Pin produk 22 | P57 — Port 5 |
| Pin produk 23 | P60 — Port 6 (external bus lower byte) |
| Pin produk 24 | P61 — Port 6 |
| Pin produk 25 | P62 — Port 6 |
| Pin produk 26 | P63 — Port 6 |
| Pin produk 27 | P64 — Port 6 |
| Pin produk 28 | P65 — Port 6 |
| Pin produk 29 | P66 — Port 6 |
| Pin produk 30 | P67 — Port 6 |
| Pin produk 31 | P70 — Port 7 (external bus) |
| Pin produk 32 | P71 — Port 7 |
| Pin produk 33 | P72 — Port 7 |
| Pin produk 34 | P73 — Port 7 |
| Pin produk 35 | P74 — Port 7 |
| Pin produk 36 | P75 — Port 7 |
| Pin produk 37 | P76 — Port 7 |
| Pin produk 38 | P77 — Port 7 |
| Pin produk 39 | P80 — Port 8 (external bus) |
| Pin produk 40 | P81 — Port 8 |
| Pin produk 41 | P82 — Port 8 |
| Pin produk 42 | P83 — Port 8 |
| Pin produk 43 | P84 — Port 8 |
| Pin produk 44 | P85 — Port 8 |
| Pin produk 45 | P86 — Port 8 |
| Pin produk 46 | P87 — Port 8 |
| Pin produk 47 | P90 — Port 9 |
| Pin produk 48 | P91 — Port 9 |
| Pin produk 49 | P92 — Port 9 |
| Pin produk 50 | P93 — Port 9 |
| Pin produk 51 | P94 — Port 9 |
| Pin produk 52 | P95 — Port 9 |
| Pin produk 53 | P96 — Port 9 |
| Pin produk 54 | P97 — Port 9 |
| Pin produk 55 | PA0/A0 — Port A / address bus |
| Pin produk 56 | PA1/A1 — Port A |
| Pin produk 57 | PA2/A2 — Port A |
| Pin produk 58 | PA3/A3 — Port A |
| Pin produk 59 | PA4/A4 — Port A |
| Pin produk 60 | PA5/A5 — Port A |
| Pin produk 61 | PA6/A6 — Port A |
| Pin produk 62 | PA7/A7 — Port A |
| Pin produk 63 | PB0/A8 — Port B / address bus |
| Pin produk 64 | PB1/A9 — Port B |
| Pin produk 65 | PB2/A10 — Port B |
| Pin produk 66 | PB3/A11 — Port B |
| Pin produk 67 | PB4/A12 — Port B |
| Pin produk 68 | PB5/A13 — Port B |
| Pin produk 69 | PB6/A14 — Port B |
| Pin produk 70 | PB7/A15 — Port B |
| Pin produk 71 | PC0/A16 — Port C / address bus |
| Pin produk 72 | PC1/A17 — Port C |
| Pin produk 73 | PC2/A18 — Port C |
| Pin produk 74 | PC3/A19 — Port C |
| Pin produk 75 | PC4/A20 — Port C |
| Pin produk 76 | PC5/A21 — Port C |
| Pin produk 77 | PC6/CS0 — Port C / chip-select 0 |
| Pin produk 78 | PC7/CS1 — Port C / chip-select 1 |
| Pin produk 79 | PD0/D0 — Port D / data bus |
| Pin produk 80 | PD1/D1 — Port D |
| Pin produk 81 | PD2/D2 — Port D |
| Pin produk 82 | PD3/D3 — Port D |
| Pin produk 83 | PD4/D4 — Port D |
| Pin produk 84 | PD5/D5 — Port D |
| Pin produk 85 | PD6/D6 — Port D |
| Pin produk 86 | PD7/D7 — Port D |
| Pin produk 87 | PE0/D8 — Port E / data bus upper |
| Pin produk 88 | PE1/D9 — Port E |
| Pin produk 89 | PE2/D10 — Port E |
| Pin produk 90 | PE3/D11 — Port E |
| Pin produk 91 | PE4/D12 — Port E |
| Pin produk 92 | PE5/D13 — Port E |
| Pin produk 93 | PE6/D14 — Port E |
| Pin produk 94 | PE7/D15 — Port E |
| Pin produk 95 | PF0 — Port F |
| Pin produk 96 | PF1 — Port F |
| Pin produk 97 | PF2 — Port F |
| Pin produk 98 | PF3 — Port F |
| Pin produk 99 | PF4 — Port F |
| Pin produk 100 | PF5 — Port F |
| Pin produk 101 | PF6 — Port F |
| Pin produk 102 | PF7 — Port F |
| Pin produk 103 | P00 — Port 0 |
| Pin produk 104 | P01 — Port 0 |
| Pin produk 105 | P02 — Port 0 |
| Pin produk 106 | P03 — Port 0 |
| Pin produk 107 | P10 — Port 1 (interrupt / SCI) |
| Pin produk 108 | P11 — Port 1 |
| Pin produk 109 | P12 — Port 1 |
| Pin produk 110 | P13 — Port 1 |
| Pin produk 111 | P14 — Port 1 |
| Pin produk 112 | P15 — Port 1 |
| Pin produk 113 | P16 — Port 1 |
| Pin produk 114 | P17 — Port 1 |
| Pin produk 115 | P20 — Port 2 (USB D+/D- etc.) |
| Pin produk 116 | P21 — Port 2 |
| Pin produk 117 | P22 — Port 2 |
| Pin produk 118 | P23 — Port 2 |
| Pin produk 119 | P24 — Port 2 |
| Pin produk 120 | P25 — Port 2 |
| Pin produk 121 | P26 — Port 2 |
| Pin produk 122 | P27 — Port 2 |
| Pin produk 123 | P30 — Port 3 (CAN etc.) |
| Pin produk 124 | P31 — Port 3 |
| Pin produk 125 | P32 — Port 3 |
| Pin produk 126 | P33 — Port 3 |
| Pin produk 127 | P34 — Port 3 |
| Pin produk 128 | P35 — Port 3 |
| Pin produk 129 | P36 — Port 3 |
| Pin produk 130 | P37 — Port 3 |
| Pin produk 131 | RES# — Reset input (active-low) |
| Pin produk 132 | XTAL/EXTAL — Crystal oscillator pins |
| Pin produk 133 | VSS — Digital ground |
| Pin produk 134 | XIN/XOUT — Low-speed crystal / EXTAL2 |
| Pin produk 135 | PLLVCC — PLL supply |
| Pin produk 136 | VCC — Digital supply 3.3 V |
| Pin produk 137 | USBVBUS — USB VBUS detect |
| Pin produk 138 | USBDP — USB D+ |
| Pin produk 139 | USBDM — USB D- |
| Pin produk 140 | VSS_USB — USB ground |
| Pin produk 141 | MD — Mode pin (boot select) |
| Pin produk 142 | EMLE — Emulator enable |
| Pin produk 143 | TRST# — JTAG reset |
| Pin produk 144 | TDO/TDI/TMS/TCK — JTAG I/O + VSS (multiple test pins) |
Aplikasi Umum
R5F56216BDFB cocok untuk 6 aplikasis: 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.
Direkomendasikan
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.
Direkomendasikan
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.
Direkomendasikan
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.
Direkomendasikan
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.
Direkomendasikan
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.
Direkomendasikan
Ringkasan Produk Direkomendasikan
Data referensi engineering untuk R5F56216BDFB — pembandingan, panduan desain, dan informasi konformitas.
Panduan Pemilihan
Pembandingan dengan Alternatif
| Parameter Umum | Produk Ini | 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) |
Diferensiator Kunci
- 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))
Catatan Desain
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.
Informasi Konformitas
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.
