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Renesas R5F51308ADNE#20
- Part No.:
- R5F51308ADNE#20
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-WFQFN Exposed Pad
- Datasheet:
-
R5F51308ADNE#20.pdf
- Description:
- IC MCU 32BIT 512KB FLASH 48WFQFN
- Quantity:
- Payment:
- Shipping:
Inventory:832
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Product details
Overview
R5F51308ADNE#20 from Renesas is a 32-bit RX CPU-based microcontroller operating at up to 32 MHz (50 DMIPS), featuring 512 KB on-chip flash, 48 KB SRAM, 8 KB data flash, 12-bit A/D converter (10 channels), two 8-bit D/A outputs, capacitive touch sensing (24 keys), and IEC60730-compliant safety functions - deployed in battery-powered industrial HMI and consumer appliance control systems.
For engineers reviewing the R5F51308ADNE#20 datasheet, R5F51308ADNE#20 pinout, R5F51308ADNE#20 application, or R5F51308ADNE#20 equivalent, this page delivers verified package mapping (PWQN0048KB-A, 48-pin HWQFN), validated peripheral configuration (SCIg ×3, RIIC ×1, RSPI ×1, MTU2 ×6), confirmed low-power operation (0.37 µA standby), and real-world timing constraints (4.8 µs wake-up, 1.4 µs A/D conversion).
Technical Context
The R5F51308ADNE#20 implements the RXv1 core with CISC Harvard architecture, 5-stage pipeline, and variable-length instructions - enabling ultra-compact code and single-cycle 32×32 multiply. Its clock system integrates high-speed (32 MHz ±1%) and sub-clock (32.768 kHz) oscillators, PLL, and CAC for accuracy monitoring.
Peripheral coordination is managed via Event Link Controller (ELC), allowing timer-triggered A/D conversion and module activation without CPU intervention. The Data Transfer Controller (DTC) supports normal, repeat, and block transfer modes triggered by 47 event sources - critical for deterministic sensor data acquisition in sleep-aware designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RXv1 32-bit CISC Harvard, 32 MHz max, 50 DMIPS - enables real-time motor control loops and protocol stacks without external co-processors. |
| Memory | 512 KB flash (no wait states @32 MHz), 48 KB SRAM, 8 KB data flash (1M erase cycles) - supports field firmware updates and parameter storage with background operation. |
| A/D Converter | 12-bit resolution, 10 input channels, 1.4 µs conversion time - sufficient for precision temperature sensing and analog feedback in closed-loop systems. |
| Low-Power Modes | Software standby mode draws 0.37 µA with LPT running; 4.8 µs wake-up time - ideal for intermittent-sensing applications like smart thermostats. |
| Communication | SCIg ×3 (asynchronous/clock-sync/Smart Card), RIIC ×1 (400 kbps), RSPI ×1 (16 Mbps) - covers UART debug, I²C sensor buses, and high-speed SPI displays. |
| Capacitive Touch | 24-key support via CTSU (self-capacitance), 5-V tolerant I/O - enables robust front-panel interfaces in white goods with noise immunity. |
| Safety Features | IEC60730 compliance aids: RAM test assistance, A/D self-diagnostic, clock accuracy measurement (CAC), IWDT with dedicated 15-kHz oscillator. |
Pinout & Package
Packaged in PWQN0048KB-A: 48-pin HWQFN, 7 mm × 7 mm, 0.5 mm pitch, exposed thermal pad - optimized for compact, thermally constrained PCB layouts in space-constrained appliances.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dual power domains: VCC (1.8–5.5 V digital), AVCC0/AVSS0 (analog supply/ground) - require separate decoupling for noise-sensitive A/D and D/A operation. |
| XTAL / EXTAL | Main crystal oscillator interface | Supports 1–20 MHz crystals; enables precise timing for RTC and communication baud rates - essential for LIN/UART synchronization. |
| AN000–AN007, AN016–AN025 | Analog inputs | 10-channel 12-bit A/D input set (per Table 1.2 for 48-pin packages); sampling time configurable per channel - allows mixed-signal signal conditioning in HVAC control. |
| DA0 / DA1 | Analog outputs | Two 8-bit voltage-output DACs (0–AVCC0 range); used for programmable biasing or analog actuator control without external DAC ICs. |
| TS0–TS23 | Capacitive touch sense pins | 24 dedicated CTSU channels (self-capacitance mode); supports proximity and button detection with built-in noise rejection - reduces BOM count in touch-enabled panels. |
| SCI0_TXD / SCI0_RXD, SCI1_TXD / SCI1_RXD, SCI5_TXD / SCI5_RXD | Asynchronous serial interfaces | Three independent SCIg channels with software-selectable baud rates - enables simultaneous debug console, sensor telemetry, and display command interface. |
| SCL0 / SDA0 | I²C bus interface | Open-drain I²C master/slave port (400 kbps fast-mode); connects directly to temperature, humidity, and EEPROM peripherals without level shifters. |
| RSPCKA / MOSIA / MISOA / SSLA0 | Serial peripheral interface | Full-duplex SPI master interface (16 Mbps); drives OLED displays or external flash memory with minimal GPIO overhead. |
Key Features
| Feature | Design Value |
|---|---|
| Event Link Controller (ELC) | Direct hardware linking of 47 event sources (e.g., timer overflow → A/D trigger) eliminates interrupt latency and CPU load during sensor sampling. |
| Background Operation (BGO) | Data flash programming/erasing proceeds concurrently with CPU execution - enables seamless over-the-air firmware updates without system freeze. |
| Capacitive Touch Sensing Unit (CTSU) | Self-capacitance mode supports 24 keys with automatic noise cancellation and drift compensation - achieves >99% touch reliability in humid kitchen environments. |
| Low Power Timer (LPT) | 16-bit counter running on sub-clock or IWDTCLK during software standby - provides accurate wake-up intervals for periodic sensor polling at sub-µA quiescent current. |
| IEC60730 Safety Assist | Integrated RAM test patterns, A/D disconnection detection, and clock accuracy measurement reduce external safety component count for Class B certification. |
Applications
| Smart Appliance Control Panel | Industrial Temperature Monitor |
|---|---|
|
Use Scenario: Touch-enabled user interface on refrigerator or oven with real-time status display and fault logging. IC Role / Device Role / Timing Role: Main system controller executing UI logic, managing capacitive touch, driving SPI OLED, and logging events to data flash. Use Value: Integrated CTSU (24 keys) and 512 KB flash eliminate external touch controller and nonvolatile memory - reducing BOM cost and board area by 35%. |
Use Scenario: Standalone DIN-rail mounted temperature logger with local LCD, SD card interface, and USB-CDC upload. IC Role / Device Role / Timing Role: Sensor hub acquiring thermistor/RTD readings via 12-bit A/D, storing calibrated data in data flash, and managing low-power sleep cycles. Use Value: 1.4 µs A/D conversion + ELC-triggered sampling ensures 100+ samples/sec per channel while maintaining 0.37 µA standby - extending battery life to >2 years on coin cell. |
| White Goods Motor Drive Interface | Home Automation Gateway Node |
|
Use Scenario: Washing machine main board coordinating motor phase control, water valve actuation, and door lock monitoring. IC Role / Device Role / Timing Role: Real-time controller generating complementary PWM via MTU2 (6 channels), reading hall sensors, and validating safety interlocks. Use Value: MTU2's reset-synchronous PWM and double-trigger A/D mode enable precise motor commutation timing and current sensing - meeting IEC60730 Class B requirements. |
Use Scenario: Zigbee-to-Matter bridge aggregating BLE/Z-Wave sensors and exposing them via Ethernet/Wi-Fi to home hub. IC Role / Device Role / Timing Role: Protocol translation engine handling UART-based sensor commands, I²C peripheral management, and CRC-protected packet framing. Use Value: Three SCIg ports + RIIC + RSPI allow concurrent connection to BLE module (SCI5), environmental sensor cluster (I²C), and external flash (SPI) - eliminating need for multi-protocol bridge ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F51308ADFL#30 | Same RX130 Group, identical core/peripherals, but in PLQP0048KB-B (48-pin LFQFP) - larger footprint (7×7 mm vs 7×7 mm), no exposed thermal pad. | Limited thermal dissipation in sealed enclosures; less suitable for sustained 32 MHz operation under ambient >70°C. | Select R5F51308ADNE#20 for thermally demanding, space-constrained designs requiring enhanced heat transfer. |
| R5F51307ADNE#U0 | Same package and pinout, but 384 KB flash / 48 KB SRAM - reduced code storage, same peripheral count and speed. | Inadequate for complex GUI frameworks or dual-application firmware images requiring >400 KB flash. | Choose R5F51308ADNE#20 when field-upgradable feature sets, bootloader + app partitioning, or safety-certified code size margins are required. |
Compared with R5F51308ADFL#30 and R5F51307ADNE#U0, the R5F51308ADNE#20 uniquely combines maximum flash density (512 KB), HWQFN thermal performance, and full peripheral complement - making it the optimal choice for next-generation appliance controllers where code growth, thermal headroom, and long-term maintainability are critical.
Availability
R5F51308ADNE#20 is available at Aetrix Electronics and suitable for smart appliance control panels, industrial temperature monitors, and home automation gateway nodes requiring stable component supply across multi-year production cycles.
Supply support for R5F51308ADNE#20 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, power, and SoC solutions for automotive, industrial, and IoT markets.
The RX130 Group targets cost-sensitive, safety-aware embedded applications - delivering IEC60730-compliant MCUs with integrated touch, analog, and low-power features for white goods, HVAC, and industrial HMI.
FAQ
What is the maximum operating frequency and core performance of the R5F51308ADNE#20?
The R5F51308ADNE#20 operates at a maximum frequency of 32 MHz and delivers 50 DMIPS using the 32-bit RXv1 CPU core. Its 5-stage pipeline, single-cycle 32×32 multiply, and variable-length instruction set enable efficient execution of real-time control algorithms - confirmed in Renesas documentation R01DS0273EJ0300.
Which package type does the R5F51308ADNE#20 use, and what are its thermal characteristics?
The R5F51308ADNE#20 uses the PWQN0048KB-A package: a 48-pin HWQFN with 7 mm × 7 mm body, 0.5 mm pitch, and an exposed thermal pad. This construction provides superior thermal resistance compared to LFQFP variants - critical for sustained 32 MHz operation in enclosed appliance housings.
How many A/D converter channels and what resolution does the R5F51308ADNE#20 support?
The R5F51308ADNE#20 integrates a 12-bit A/D converter with 10 input channels (per Table 1.2 for 48-pin packages), achieving 1.4 µs conversion time at 32 MHz ADCLK. Channel-specific sampling time configuration and self-diagnostic capability are documented in Section 22 of R01DS0273EJ0300.
Does the R5F51308ADNE#20 support capacitive touch sensing, and how many keys can it handle?
Yes, the R5F51308ADNE#20 includes a Capacitive Touch Sensing Unit (CTSU) supporting up to 24 keys in self-capacitance mode - matching the 48-pin package's TS0–TS23 pin allocation. This is explicitly listed in Table 1.2 and detailed in Section 27 of R01DS0273EJ0300.
What low-power modes and wake-up capabilities does the R5F51308ADNE#20 offer?
The R5F51308ADNE#20 supports three low-power modes, including software standby drawing 0.37 µA while keeping the Low Power Timer (LPT) active. Wake-up occurs in 4.8 µs from standby - verified in Section 7.3.2 of R01DS0273EJ0300 - enabling rapid response to sensor events in battery-powered monitoring devices.
R5F51308ADNE#20 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-WFQFN Exposed Pad
- Series:
- RX130
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- RX
- Core Size:
- 32-Bit Single-Core
- Speed:
- 32MHz
- Connectivity:
- I2C, LINbus, SCI, SPI
- Peripherals:
- Capacitive Touch, DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 38
- Program Memory Size:
- 512KB (512K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 48K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 5.5V
- Data Converters:
- A/D 10x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F51308ADNE#20 FAQ
1.How can I place an order for R5F51308ADNE#20 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F51308ADNE#20 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 R5F51308ADNE#20 reliable?
The price and inventory of R5F51308ADNE#20 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F51308ADNE#20 is usually 5 days.
3.What payment methods are accepted for R5F51308ADNE#20?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F51308ADNE#20 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F51308ADNE#20?
R5F51308ADNE#20 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F51308ADNE#20 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 R5F51308ADNE#20?
For technical support, including R5F51308ADNE#20 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F51308ADNE#20 requirements.
6.How does Aetrix verify that R5F51308ADNE#20 is sourced from the original manufacturer or authorized distributors?
All R5F51308ADNE#20 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 R5F51308ADNE#20 meets industry standards.
7.What is the process for return or replacement of R5F51308ADNE#20?
All R5F51308ADNE#20 units undergo pre-shipment inspection (PSI). If there is an issue with R5F51308ADNE#20, 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 R5F51308ADNE#20 part is unused and in its original packaging.
Return procedure for R5F51308ADNE#20:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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