R5F56216BDFB - 100MHz 32-bit RX621 MCU, 256KB Flash | Renesas
Référence : R5F56216BDFB ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $9.8 | $9,80 |
| 10 | $8.85 | $88,50 |
| 100 | $7.92 | $792,00 |
| 500 | $7.05 | $3 525,00 |
| 1 000 | $6.3 | $6 300,00 |
R5F56216BDFB Présentation
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.
Alternatives de remplacement direct pour R5F56216BDFB — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec R5F56216BDFB (même facteur de forme et même empreinte) — différant par Core Architecture, Operating Temperature.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
R5F56217BDFB
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
R5F562N7BDFB
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
R5F56216BDFP#V0
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
R5F56216BDFB#10
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
R5F56216BDLK#V0
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
R5F56216BDFB Valeurs maximales et caractéristiques électriques
| Core Architecture | RXv1 32-bit RISC with FPU |
| Fréquence d'horloge maximale | 100 MHz |
| DMIPS Performance | 165 DMIPS |
| Program Flash | 256 KB (256K x 8) |
| SRAM | 64 KB |
| Tension d'alimentation | 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 |
| Température de fonctionnement | -40 C to +85 C |
| Boîtier | 144-LFQFP (20x20 mm) |
| Type de montage | Surface Mount |
| Flash Access Accelerator | Yes (on-chip) |
| Lead-Free / RoHS | Yes / Compliant |
Configuration des broches de R5F56216BDFB
| Broche 1 | VSS — Digital ground |
| Broche 2 | P40/AN000 — Port 4 / ADC input |
| Broche 3 | P41/AN001 — Port 4 / ADC input |
| Broche 4 | P42/AN002 — Port 4 / ADC input |
| Broche 5 | P43/AN003 — Port 4 / ADC input |
| Broche 6 | AVSS — Analog ground |
| Broche 7 | P44/AN004 — Port 4 / ADC input |
| Broche 8 | P45/AN005 — Port 4 / ADC input |
| Broche 9 | P46/AN006 — Port 4 / ADC input |
| Broche 10 | P47/AN007 — Port 4 / ADC input |
| Broche 11 | AVCC — Analog supply 3.3 V |
| Broche 12 | VREF — ADC reference voltage |
| Broche 13 | P50/RXD0 — Port 5 / SCI0 RXD |
| Broche 14 | P51/TXD0 — Port 5 / SCI0 TXD |
| Broche 15 | P52/SCK0 — Port 5 / SCI0 clock |
| Broche 16 | P53 — Port 5 |
| Broche 17 | VCC — Digital supply 3.3 V |
| Broche 18 | VSS — Digital ground |
| Broche 19 | P54 — Port 5 |
| Broche 20 | P55 — Port 5 |
| Broche 21 | P56 — Port 5 |
| Broche 22 | P57 — Port 5 |
| Broche 23 | P60 — Port 6 (external bus lower byte) |
| Broche 24 | P61 — Port 6 |
| Broche 25 | P62 — Port 6 |
| Broche 26 | P63 — Port 6 |
| Broche 27 | P64 — Port 6 |
| Broche 28 | P65 — Port 6 |
| Broche 29 | P66 — Port 6 |
| Broche 30 | P67 — Port 6 |
| Broche 31 | P70 — Port 7 (external bus) |
| Broche 32 | P71 — Port 7 |
| Broche 33 | P72 — Port 7 |
| Broche 34 | P73 — Port 7 |
| Broche 35 | P74 — Port 7 |
| Broche 36 | P75 — Port 7 |
| Broche 37 | P76 — Port 7 |
| Broche 38 | P77 — Port 7 |
| Broche 39 | P80 — Port 8 (external bus) |
| Broche 40 | P81 — Port 8 |
| Broche 41 | P82 — Port 8 |
| Broche 42 | P83 — Port 8 |
| Broche 43 | P84 — Port 8 |
| Broche 44 | P85 — Port 8 |
| Broche 45 | P86 — Port 8 |
| Broche 46 | P87 — Port 8 |
| Broche 47 | P90 — Port 9 |
| Broche 48 | P91 — Port 9 |
| Broche 49 | P92 — Port 9 |
| Broche 50 | P93 — Port 9 |
| Broche 51 | P94 — Port 9 |
| Broche 52 | P95 — Port 9 |
| Broche 53 | P96 — Port 9 |
| Broche 54 | P97 — Port 9 |
| Broche 55 | PA0/A0 — Port A / address bus |
| Broche 56 | PA1/A1 — Port A |
| Broche 57 | PA2/A2 — Port A |
| Broche 58 | PA3/A3 — Port A |
| Broche 59 | PA4/A4 — Port A |
| Broche 60 | PA5/A5 — Port A |
| Broche 61 | PA6/A6 — Port A |
| Broche 62 | PA7/A7 — Port A |
| Broche 63 | PB0/A8 — Port B / address bus |
| Broche 64 | PB1/A9 — Port B |
| Broche 65 | PB2/A10 — Port B |
| Broche 66 | PB3/A11 — Port B |
| Broche 67 | PB4/A12 — Port B |
| Broche 68 | PB5/A13 — Port B |
| Broche 69 | PB6/A14 — Port B |
| Broche 70 | PB7/A15 — Port B |
| Broche 71 | PC0/A16 — Port C / address bus |
| Broche 72 | PC1/A17 — Port C |
| Broche 73 | PC2/A18 — Port C |
| Broche 74 | PC3/A19 — Port C |
| Broche 75 | PC4/A20 — Port C |
| Broche 76 | PC5/A21 — Port C |
| Broche 77 | PC6/CS0 — Port C / chip-select 0 |
| Broche 78 | PC7/CS1 — Port C / chip-select 1 |
| Broche 79 | PD0/D0 — Port D / data bus |
| Broche 80 | PD1/D1 — Port D |
| Broche 81 | PD2/D2 — Port D |
| Broche 82 | PD3/D3 — Port D |
| Broche 83 | PD4/D4 — Port D |
| Broche 84 | PD5/D5 — Port D |
| Broche 85 | PD6/D6 — Port D |
| Broche 86 | PD7/D7 — Port D |
| Broche 87 | PE0/D8 — Port E / data bus upper |
| Broche 88 | PE1/D9 — Port E |
| Broche 89 | PE2/D10 — Port E |
| Broche 90 | PE3/D11 — Port E |
| Broche 91 | PE4/D12 — Port E |
| Broche 92 | PE5/D13 — Port E |
| Broche 93 | PE6/D14 — Port E |
| Broche 94 | PE7/D15 — Port E |
| Broche 95 | PF0 — Port F |
| Broche 96 | PF1 — Port F |
| Broche 97 | PF2 — Port F |
| Broche 98 | PF3 — Port F |
| Broche 99 | PF4 — Port F |
| Broche 100 | PF5 — Port F |
| Broche 101 | PF6 — Port F |
| Broche 102 | PF7 — Port F |
| Broche 103 | P00 — Port 0 |
| Broche 104 | P01 — Port 0 |
| Broche 105 | P02 — Port 0 |
| Broche 106 | P03 — Port 0 |
| Broche 107 | P10 — Port 1 (interrupt / SCI) |
| Broche 108 | P11 — Port 1 |
| Broche 109 | P12 — Port 1 |
| Broche 110 | P13 — Port 1 |
| Broche 111 | P14 — Port 1 |
| Broche 112 | P15 — Port 1 |
| Broche 113 | P16 — Port 1 |
| Broche 114 | P17 — Port 1 |
| Broche 115 | P20 — Port 2 (USB D+/D- etc.) |
| Broche 116 | P21 — Port 2 |
| Broche 117 | P22 — Port 2 |
| Broche 118 | P23 — Port 2 |
| Broche 119 | P24 — Port 2 |
| Broche 120 | P25 — Port 2 |
| Broche 121 | P26 — Port 2 |
| Broche 122 | P27 — Port 2 |
| Broche 123 | P30 — Port 3 (CAN etc.) |
| Broche 124 | P31 — Port 3 |
| Broche 125 | P32 — Port 3 |
| Broche 126 | P33 — Port 3 |
| Broche 127 | P34 — Port 3 |
| Broche 128 | P35 — Port 3 |
| Broche 129 | P36 — Port 3 |
| Broche 130 | P37 — Port 3 |
| Broche 131 | RES# — Reset input (active-low) |
| Broche 132 | XTAL/EXTAL — Crystal oscillator pins |
| Broche 133 | VSS — Digital ground |
| Broche 134 | XIN/XOUT — Low-speed crystal / EXTAL2 |
| Broche 135 | PLLVCC — PLL supply |
| Broche 136 | VCC — Digital supply 3.3 V |
| Broche 137 | USBVBUS — USB VBUS detect |
| Broche 138 | USBDP — USB D+ |
| Broche 139 | USBDM — USB D- |
| Broche 140 | VSS_USB — USB ground |
| Broche 141 | MD — Mode pin (boot select) |
| Broche 142 | EMLE — Emulator enable |
| Broche 143 | TRST# — JTAG reset |
| Broche 144 | TDO/TDI/TMS/TCK — JTAG I/O + VSS (multiple test pins) |
Applications typiques
R5F56216BDFB convient pour 6 applications: 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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour R5F56216BDFB — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | 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) |
Principaux différenciateurs
- Balanced 100 MHz CPU with rich industrial connectivity (vs PIC32MX550F256L-I/PT)
- On-chip FPU accelerates closed-loop control (vs R5F2135CCNFP (Renesas R8C series))
- Drop-in Ethernet upgrade via R5F562N7BDFB (vs R5F56216BDFB (this part))
Notes de conception
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.
Informations de conformité
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.
