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Renesas R5F51405BDFL#30
- Part No.:
- R5F51405BDFL#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
R5F51405BDFL#30.pdf
- Description:
- IC MCU 32BIT 128MB FLASH 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:740
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Product details
Overview
R5F51405BDFL#30 from Renesas is a 32-bit RXv2 core MCU operating at up to 48 MHz, featuring 128 KB flash, 32 KB SRAM, on-chip FPU, 12-bit A/D converter (11 external channels), and hardware AES encryption. It supports CAN, SCI, I²C, RSPI, capacitive touch sensing (24 keys), and operates from 1.8–5.5 V in industrial temperature range (–40°C to +85°C) - used in smart sensors and embedded HMI control.
For engineers reviewing the R5F51405BDFL#30 datasheet, R5F51405BDFL#30 pinout, R5F51405BDFL#30 application, or R5F51405BDFL#30 equivalent, this page delivers verified technical context, package-specific pin roles, real-world use cases, and validated alternative parts for industrial control, touch-enabled UIs, and secure IoT edge nodes.
Technical Context
The R5F51405BDFL#30 implements the RXv2 CPU core with Harvard architecture, 5-stage pipeline, and IEEE-754-compliant 32-bit FPU - enabling deterministic floating-point math for motor control and sensor fusion. Its clock system integrates HOCO (48 MHz ±1%), sub-clock (32.768 kHz), PLL, and CAC for accuracy monitoring.
Peripheral integration includes ELC for interrupt-free event chaining, DTC for autonomous data transfers, and CTSU2SL supporting self-capacitance (24-key) and mutual-capacitance (8×8 matrix) touch - all while maintaining low-power operation with 0.25 µA software standby current and 6.2 µs wake-up time.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RXv2 32-bit CISC core with 5-stage pipeline, 204 CoreMark @ 48 MHz - enables high-efficiency code density and real-time determinism. |
| Max Operating Frequency | 48 MHz (HOCO ±1%) - supports real-time control loops with sub-µs timer resolution and fast ADC conversion (0.67 µs). |
| Memory | 128 KB on-chip flash (no-wait ≤32 MHz), 32 KB SRAM, 8 KB data flash (1M erase cycles) - sufficient for secure firmware updates and parameter storage. |
| Analog Peripherals | 12-bit S12ADE ADC (11 external + 1 internal channel), 2×8-bit DAC, 2-channel comparator B, integrated temperature sensor - enables closed-loop analog signal conditioning. |
| Communication | 1×CAN (ISO 11898-1, 1 Mbps), 5×SCI (asynchronous/smart card/SPI/I²C modes), 1×RIIC (400 kbps), 1×RSPI (16 Mbps), 1×I²C - supports mixed-protocol industrial networks. |
| Security & Compliance | AESA hardware accelerator (AES-128/256), RNGA true random number generator, IEC60730 self-test support - meets Class B functional safety requirements. |
| Power & Temp | 1.8–5.5 V single supply; –40°C to +85°C operation; 0.25 µA software standby current (typ.) - suitable for battery-backed and wide-input industrial power rails. |
Pinout & Package
Package: PLQP0048KB-B - 48-pin LFQFP, 7 × 7 mm, 0.5 mm pitch, exposed pad (thermal enhancement), RoHS compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dual VCC pins (Pins 1, 48) and multiple VSS (Pins 2, 3, 46, 47) ensure stable core/peripheral rail decoupling; VCL (Pin 4) requires 4.7 µF capacitor to VSS. |
| XTAL / EXTAL | Main clock oscillator interface | Supports external crystal (1–20 MHz) or clock input; enables precise timing for RTC, communication baud rates, and system synchronization. |
| XCIN / XCOUT | Sub-clock oscillator interface | 32.768 kHz crystal connection for RTC calendar mode and low-power wake-up sources (LPT, IWDT). |
| RES# | Active-low reset input | Asynchronous hardware reset; debounced externally to prevent spurious resets in noisy industrial environments. |
| MTIOC0A–D, MTIOC1A–B, etc. | MTU2 waveform I/O | 16-bit multi-function timer pins support complementary PWM, phase counting, and ADC trigger generation - critical for motor drive and power conversion. |
| SCIx TXD/RXD, SCL0/SDA0 | Serial interface I/O | 5×SCI channels (including LIN-capable SCIh), 1×I²C (SCL0/SDA0 open-drain), all with ELC linkage - enable protocol-flexible peripheral bridging without CPU load. |
| CTSU0–23 | Capacitive touch sensing inputs | 24 dedicated CTSU pins (self-capacitance mode) - support robust touch buttons/sliders in space-constrained HMI designs with noise immunity. |
Key Features
| Feature | Design Value |
|---|---|
| Hardware AES-128/256 Accelerator | Encrypts/decrypts data in 176/240 cycles - enables secure OTA firmware updates and encrypted sensor data transmission without CPU overhead. |
| Event Link Controller (ELC) | Direct hardware routing of 48 event signals between peripherals (e.g., MTU → ADC start, SCI RX → DMA) - eliminates ISR latency and reduces power via CPU sleep during data movement. |
| Capacitive Touch Sensing Unit (CTSU2SL) | 24-key self-capacitance support with automatic correction/judgment - delivers production-ready touch performance in humid/dirty environments without external ICs. |
| IEC60730 Safety Support | Integrated RAM test assistance, ADC self-diagnostic, clock accuracy monitoring (CAC), and IWDT disconnection detection - simplifies Class B certification effort. |
| Low-Power Timer (LPT) | 16-bit timer running on sub-clock or IWDT oscillator during software standby - provides precise wake-up intervals (e.g., 1 s, 10 s) with 0.25 µA quiescent current. |
Applications
| Industrial Sensor Node | Smart Appliance Control Panel |
|---|---|
|
Use Scenario: Battery-powered environmental sensor collecting temperature, humidity, and air quality data with periodic BLE upload. IC Role / Device Role / Timing Role: Central controller managing ADC sampling, AES-encrypted data packaging, RTC-timed wake-up, and SCI-based UART-to-BLE bridge. Use Value: 0.25 µA software standby current extends battery life to >5 years; CAC validates clock integrity for accurate timestamping; hardware RNG ensures secure key generation. |
Use Scenario: Touch-enabled oven control panel with rotary encoder emulation, status LEDs, and relay drivers. IC Role / Device Role / Timing Role: HMI processor handling CTSU2SL touch detection, PWM dimming for LEDs, MTU2-driven relay timing, and SCI communication with main MCU. Use Value: 24-key self-capacitance touch eliminates mechanical switches; complementary PWM output drives zero-cross SSRs; 48 MHz core handles real-time touch response <10 ms. |
| Secure Gateway Edge Node | Motor Drive Feedback Controller |
|
Use Scenario: Field gateway aggregating Modbus RTU data from legacy PLCs and forwarding via encrypted TLS to cloud. IC Role / Device Role / Timing Role: Protocol translator with SCI (Modbus), RSPI (SPI-to-Ethernet MAC), AESA crypto engine, and RTC for certificate validity checks. Use Value: Hardware AES-256 accelerates TLS handshake; 16 Mbps RSPI interfaces to Ethernet PHY without bottleneck; dual-voltage IO (5-V tolerant) eases legacy bus interfacing. |
Use Scenario: BLDC motor controller using hall-effect sensors and shunt current feedback for field-oriented control (FOC). IC Role / Device Role / Timing Role: Real-time motor controller executing FOC algorithm, generating 3-phase PWM via MTU2, sampling current via 12-bit ADC with double-trigger sync. Use Value: RXv2 FPU computes Clarke/Park transforms in <5 µs; 0.67 µs ADC conversion enables 150 kHz current loop; complementary PWM outputs drive gate drivers with dead-time insertion. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F51405ADFL#30 | No AESA or RNGA hardware; identical flash/RAM/peripherals otherwise. | Suitable where cryptographic functions are implemented in software or omitted entirely. | Select when security acceleration is unnecessary and cost sensitivity outweighs future-proofing. |
| R5F51403BDFL#30 | 64 KB flash, 16 KB RAM, 4 KB data flash, no RTC, no CAN, reduced CTSU (12 keys), no D/A. | Targeted at simpler control tasks without communication redundancy or analog output needs. | Choose for cost-optimized, non-networked embedded controllers where memory and peripheral headroom are constrained. |
Compared with R5F51405BDFL#30, R5F51405ADFL#30 removes hardware crypto but retains full peripheral set for non-secure applications, while R5F51403BDFL#30 reduces memory and analog resources - making both viable alternatives only when specific feature subsets are sufficient and no PCB layout change is required.
Availability
R5F51405BDFL#30 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart appliance HMIs, secure edge gateways, and motor feedback controllers requiring stable component supply across extended product lifecycles.
Supply support for R5F51405BDFL#30 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 automotive, industrial, and IoT markets.
The RX140 Group targets cost-sensitive, low-power industrial and consumer applications requiring security, touch, and mixed-signal integration - designed to replace legacy 8/16-bit MCUs with scalable 32-bit performance.
FAQ
What is the maximum operating frequency and clock source accuracy of the R5F51405BDFL#30?
The R5F51405BDFL#30 achieves a maximum operating frequency of 48 MHz using its high-speed on-chip oscillator (HOCO) with ±1% accuracy. This HOCO can be used directly or fed into the PLL for stable system clock generation. The CAC (Clock Accuracy Measurement) circuit allows runtime validation of oscillator drift against an external reference, ensuring timing integrity for communication and safety-critical functions in the R5F51405BDFL#30.
Does the R5F51405BDFL#30 support CAN communication, and what version of the standard does it comply with?
Yes, the R5F51405BDFL#30 integrates one RSCAN (CAN) module compliant with ISO 11898-1, supporting both standard (11-bit) and extended (29-bit) frame formats at bit rates up to 1 Mbps. It includes 16 mailboxes for flexible message filtering and prioritization. Note that CAN is only available in 64-pin and 80-pin RX140 packages - the R5F51405BDFL#30 (48-pin LFQFP) does not include CAN functionality per Table 1.2 in the datasheet.
How many capacitive touch keys does the R5F51405BDFL#30 support, and what sensing methods are available?
The R5F51405BDFL#30 supports up to 24 capacitive touch keys using the CTSU2SL unit in self-capacitance mode. It does not support mutual capacitance (8×8 matrix) or CTSU2L functionality in this package variant, as confirmed by Table 1.2. All 24 keys are implemented via dedicated CTSU pins mapped to Port 0–3, with built-in automatic correction and judgment logic to maintain reliability under varying environmental conditions in the R5F51405BDFL#30.
What is the flash and SRAM capacity of the R5F51405BDFL#30, and is background operation supported?
The R5F51405BDFL#30 features 128 KB of on-chip flash memory for program code and 32 KB of SRAM for data - both accessible with zero wait states up to 32 MHz. Its 8 KB data flash supports Background Operation (BGO), allowing read access during program/erase cycles. This enables seamless firmware updates and parameter logging without halting application execution in the R5F51405BDFL#30.
What low-power modes are available on the R5F51405BDFL#30, and what is the typical current consumption in software standby mode?
The R5F51405BDFL#30 offers four low-power modes: Sleep, Deep Sleep, Software Standby, and Snooze. In Software Standby mode - where the CPU and most peripherals are halted but RAM and certain wake-up sources remain active - typical supply current is 0.25 µA at 25°C. Wake-up occurs in 6.2 µs (typ.) using the HOCO (32 MHz), enabling rapid responsiveness to external events while minimizing energy use in the R5F51405BDFL#30.
R5F51405BDFL#30 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-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:
- 39
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 32K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 5.5V
- Data Converters:
- A/D 11x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F51405BDFL#30 FAQ
1.How can I place an order for R5F51405BDFL#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F51405BDFL#30 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 R5F51405BDFL#30 reliable?
The price and inventory of R5F51405BDFL#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F51405BDFL#30 is usually 5 days.
3.What payment methods are accepted for R5F51405BDFL#30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F51405BDFL#30 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F51405BDFL#30?
R5F51405BDFL#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F51405BDFL#30 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 R5F51405BDFL#30?
For technical support, including R5F51405BDFL#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F51405BDFL#30 requirements.
6.How does Aetrix verify that R5F51405BDFL#30 is sourced from the original manufacturer or authorized distributors?
All R5F51405BDFL#30 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 R5F51405BDFL#30 meets industry standards.
7.What is the process for return or replacement of R5F51405BDFL#30?
All R5F51405BDFL#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F51405BDFL#30, 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 R5F51405BDFL#30 part is unused and in its original packaging.
Return procedure for R5F51405BDFL#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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