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Renesas R5F51406BGFK#10
- Part No.:
- R5F51406BGFK#10
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F51406BGFK#10.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,798
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Product details
Overview
R5F51406BGFK#10 from Renesas is a 32-bit RXv2 core microcontroller operating at up to 48 MHz, featuring 256 KB on-chip flash, 64 KB SRAM, 8 KB data flash, integrated FPU, AES-128/256 hardware accelerator, and CAN 2.0B compliance. It supports IEC60730 safety-critical functions and operates across –40°C to +105°C in industrial environments.
For engineers reviewing the R5F51406BGFK#10 datasheet, R5F51406BGFK#10 pinout, R5F51406BGFK#10 application, or R5F51406BGFK#10 equivalent, this MCU delivers deterministic real-time control with low-power modes (0.25 µA standby), 12-bit A/D conversion in 0.67 µs, capacitive touch sensing (up to 36 keys), and event-driven peripheral coordination via ELC - critical for motor control, HMI, and industrial automation designs.
Technical Context
The R5F51406BGFK#10 implements the RXv2 CPU core with Harvard architecture, 5-stage pipeline, and variable-length instructions enabling ultra-compact code. It integrates an IEEE-754-compliant 32-bit FPU, 32×32-bit multiplier, and 32-bit divider completing in two clock cycles - supporting high-precision math in motor control and sensor fusion.
Its clock system includes HOCO (48 MHz ±1%), sub-clock (32.768 kHz), PLL, and dedicated IWDT oscillator (15 kHz), with independent domain clocks (ICLK/PCLKB/FCLK) enabling precise power/performance trade-offs. The ELC allows timer-triggered A/D conversion and PWM updates without CPU intervention - essential for deterministic timing in closed-loop systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RXv2 32-bit CISC core with 5-stage pipeline, 204 CoreMark @ 48 MHz - enables efficient real-time task execution with minimal code footprint. |
| Max Operating Frequency | 48 MHz (HOCO ±1%) - supports fast control loops and high-bandwidth communication without external crystal dependency. |
| Memory | 256 KB flash (no-wait ≤32 MHz), 64 KB SRAM, 8 KB data flash (1M erase cycles) - sufficient for complex firmware, OTA updates, and parameter storage in field-deployed devices. |
| A/D Converter | 12-bit S12ADE with 18 channels (17 external + 1 internal), 0.67 µs conversion time @ 48 MHz ADCLK - meets tight sampling requirements in motor current sensing and power monitoring. |
| Communication | 1× CAN 2.0B (1 Mbps), 6× SCI (async/clock-sync/smart card), 1× RIIC (400 kbps), 1× RSPI (16 Mbps) - enables robust multi-protocol connectivity in industrial networks. |
| Security & Safety | AES-128/256 hardware accelerator (ECB/CBC/CTR), RNGA, IEC60730 self-test support (RAM, ADC, clock accuracy, IWDT) - satisfies Class B functional safety requirements. |
| Power & Temp | 1.8–5.5 V single supply; software standby current 0.25 µA (typ.); operating range –40°C to +105°C - suitable for harsh industrial and automotive under-hood applications. |
Pinout & Package
Package: PLQP0064GA-A - 64-pin LQFP, 14 × 14 mm, 0.8 mm pitch, RoHS compliant, lead-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dual power domains: VCC powers digital logic and I/O; VSS reference for analog peripherals including ADC and DAC - requires separate decoupling per datasheet layout guidelines. |
| XTAL / EXTAL | Main clock oscillator interface | Supports external crystal (1–20 MHz) or clock input; used for high-accuracy timing in RTC and communication baud rate generation. |
| RES# | Active-low reset input | Asynchronous hardware reset with internal pull-up; initiates full system initialization and register clearing - critical for fail-safe recovery. |
| MTIOC0A–MTIOC4D | MTU2 waveform I/O | 6-channel 16-bit timer outputs supporting complementary PWM, phase counting, and input capture - directly drives gate drivers in 3-phase motor control. |
| RXD12 / TXD12 | SCIh serial interface | Full-duplex UART channel supporting LIN protocol and start-frame detection - used for diagnostics and vehicle network integration. |
| CANRX / CANTX | CAN physical layer interface | Dedicated differential pair for ISO11898-1 compliant CAN bus (1 Mbps) - connects to external transceiver (e.g., RAA120000) for industrial fieldbus communication. |
| AD00–AD17 | Analog input channels | 17 external pins for 12-bit ADC inputs; each configurable with independent sampling time - enables simultaneous current/voltage/temperature acquisition in power converters. |
| DA0 / DA1 | Digital-to-analog outputs | Two 8-bit voltage-output DACs (0–AVCC0) - provide analog setpoints or bias voltages for op-amp conditioning circuits without external DAC ICs. |
Key Features
| Feature | Design Value |
|---|---|
| Event Link Controller (ELC) | 48-event routing capability enables direct peripheral-to-peripheral triggering (e.g., MTU overflow → ADC start) - eliminates interrupt latency and CPU overhead in time-critical sequences. |
| Capacitive Touch Sensing Unit (CTSU2SL) | Supports 36-key self-capacitance or 64-key mutual-capacitance matrix - enables robust, low-BOM HMI implementation with built-in noise immunity and automatic drift compensation. |
| Low-Power Timer (LPT) | 16-bit counter running during software standby mode using sub-clock or IWDT oscillator - provides wake-up timing without exiting low-power state, extending battery life in remote sensors. |
| Multi-Function Pin Controller (MPC) | Per-pin function selection across 64 I/Os - simplifies PCB layout by allowing flexible signal assignment (e.g., remapping SCI to alternate pins) without hardware changes. |
| Background Operation (BGO) | Data flash programming/erasing while CPU executes code - enables seamless firmware updates and runtime parameter logging without system interruption. |
Applications
| Industrial Motor Control | Smart Home HMI |
|---|---|
|
Use Scenario: Closed-loop control of BLDC/PMSM motors in HVAC blowers and pump drives. IC Role / Device Role / Timing Role: Real-time execution of FOC algorithms using FPU, synchronized PWM generation via MTU2, and current sensing via 12-bit ADC with 0.67 µs conversion. Use Value: Enables <1 µs jitter in PWM dead-time insertion and precise current sampling within switching cycle - critical for efficiency and acoustic noise reduction. |
Use Scenario: Capacitive touch panel in thermostats, lighting controls, and appliance interfaces. IC Role / Device Role / Timing Role: CTSU2SL performs self-capacitance scanning of 36 keys with automatic baseline correction and noise rejection at 20 ms frame rate. Use Value: Eliminates external touch controller IC, reduces BOM cost by $0.35/unit, and supports glove operation through programmable sensitivity tuning. |
| Industrial Fieldbus Node | Energy Monitoring Gateway |
|
Use Scenario: CAN-based sensor node aggregating temperature, pressure, and vibration data in factory automation. IC Role / Device Role / Timing Role: RSCAN module handles 1 Mbps CAN messaging with 16 mailboxes; ELC links timer events to ADC triggers for synchronized multi-sensor sampling. Use Value: Guarantees deterministic message transmission within 250 µs worst-case latency and supports concurrent analog acquisition without CPU polling. |
Use Scenario: DIN-rail mounted power meter collecting voltage/current harmonics and thermal data. IC Role / Device Role / Timing Role: Dual 12-bit ADC channels sample AC waveforms at 10 kSPS; AESA encrypts meter readings before transmission over RSPI to secure wireless module. Use Value: Meets IEC62056-21 security requirements while maintaining <±0.5% energy measurement accuracy across –40°C to +105°C ambient. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 32-bit industrial MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F51406ADFK#30 | No AES/RNG hardware; same 256 KB flash, 64 KB RAM, and –40°C to +85°C rating. | Lacks cryptographic acceleration and true random number generation - unsuitable for secure boot or encrypted communications. | Select when security features are unnecessary and cost optimization is prioritized for non-connected industrial controllers. |
| R5F51405BGFK#30 | 128 KB flash, 32 KB RAM, no data flash; otherwise identical peripheral set and temperature grade. | Insufficient memory for complex GUI stacks or dual-bank firmware updates - limits use in feature-rich HMI or OTA-capable devices. | Choose for simpler control tasks where memory headroom is not required and BOM cost must be minimized. |
Compared with R5F51406ADFK#30 and R5F51405BGFK#30, the R5F51406BGFK#10 uniquely combines extended memory (256 KB flash/8 KB data flash), full cryptographic acceleration, and extended temperature support - making it the only option among the three qualified for secure, high-reliability industrial edge nodes requiring long-term field operation.
Availability
R5F51406BGFK#10 is available at Aetrix Electronics and suitable for industrial motor control, smart home HMI, fieldbus nodes, and energy monitoring gateways requiring stable component supply, extended temperature operation, and long-term lifecycle assurance.
Supply support for R5F51406BGFK#10 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Renesas Electronics Corporation is a global semiconductor leader specializing in microcontrollers, analog, and power solutions for industrial, automotive, and IoT markets.
The RX140 Group targets cost-sensitive yet performance-demanding industrial applications, delivering high-integration MCUs with safety, security, and low-power capabilities - designed specifically for motor control, HMI, and sensor aggregation in harsh environments.
FAQ
What is the maximum operating frequency and clock source options for the R5F51406BGFK#10?
The R5F51406BGFK#10 operates at up to 48 MHz using its high-speed on-chip oscillator (HOCO) with ±1% accuracy. Alternative clock sources include external crystal (1–20 MHz), sub-clock (32.768 kHz), PLL (fed by 4–12 MHz input), and low-speed on-chip oscillator (4 MHz). All clock domains (ICLK, PCLKB, FCLK) are independently configurable to optimize performance versus power consumption in the R5F51406BGFK#10.
Does the R5F51406BGFK#10 support IEC60730 Class B compliance out of the box?
Yes, the R5F51406BGFK#10 includes hardware-assisted self-test features required for IEC60730 Class B: RAM test via DOC, ADC self-diagnostic and disconnection detection, clock frequency accuracy measurement (CAC), and independent watchdog timer (IWDT) with dedicated oscillator. These are documented in the R5F51406BGFK#10 hardware manual and supported by Renesas' Functional Safety Package.
How many capacitive touch keys does the R5F51406BGFK#10 support, and what methods are available?
The R5F51406BGFK#10 supports up to 36 keys using self-capacitance mode (CTSU2SL) and up to 64 keys using mutual capacitance matrix (8×8) - both implemented entirely in hardware with automatic calibration and noise suppression. This capability is confirmed in the CTSU2SL/CTSU2L section of the R5F51406BGFK#10 datasheet and applies specifically to the BGFK package variant.
What is the flash endurance and programming voltage requirement for the R5F51406BGFK#10?
The R5F51406BGFK#10 features 256 KB of on-chip flash memory rated for 10,000 program/erase cycles and programmable down to 1.8 V. Its 8 KB data flash is rated for 1,000,000 cycles (typ.) and supports background operation (BGO), allowing concurrent code execution and data logging - key specifications verified in the R5F51406BGFK#10 memory chapter.
Which communication interfaces with hardware-level security support does the R5F51406BGFK#10 include?
The R5F51406BGFK#10 integrates AES-128/256 hardware acceleration (AESA) and a true random number generator (RNGA), enabling secure boot, encrypted firmware updates, and TLS offload. These modules operate independently of the CPU and are accessible via dedicated registers - confirmed in the R5F51406BGFK#10 encryption function section and applicable to all BG-series variants including R5F51406BGFK#10.
R5F51406BGFK#10 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- RX140
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- RXv2
- Core Size:
- 32-Bit Single-Core
- Speed:
- 48MHz
- Connectivity:
- CANbus, I2C, SCI, SPI
- Peripherals:
- AES, Capacitive Touch, DMA, LVD, POR, PWM, Temp Sensor, TRNG, WDT
- Number of I/O:
- 53
- Program Memory Size:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 64K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 5.5V
- Data Converters:
- A/D 15x12b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F51406BGFK#10 FAQ
1.How can I place an order for R5F51406BGFK#10 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F51406BGFK#10 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for R5F51406BGFK#10 reliable?
The price and inventory of R5F51406BGFK#10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F51406BGFK#10 is usually 5 days.
3.What payment methods are accepted for R5F51406BGFK#10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F51406BGFK#10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F51406BGFK#10?
R5F51406BGFK#10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F51406BGFK#10 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for R5F51406BGFK#10?
For technical support, including R5F51406BGFK#10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F51406BGFK#10 requirements.
6.How does Aetrix verify that R5F51406BGFK#10 is sourced from the original manufacturer or authorized distributors?
All R5F51406BGFK#10 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that R5F51406BGFK#10 meets industry standards.
7.What is the process for return or replacement of R5F51406BGFK#10?
All R5F51406BGFK#10 units undergo pre-shipment inspection (PSI). If there is an issue with R5F51406BGFK#10, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The R5F51406BGFK#10 part is unused and in its original packaging.
Return procedure for R5F51406BGFK#10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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