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Renesas R5F51303AGNE#20
- Part No.:
- R5F51303AGNE#20
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-WFQFN Exposed Pad
- Datasheet:
-
R5F51303AGNE#20.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 48HWQFN
- Quantity:
- Payment:
- Shipping:
Inventory:832
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Product details
Overview
R5F51303AGNE#20 from Renesas is a 32-bit RX CPU-based microcontroller optimized for low-power, touch-enabled consumer and industrial control applications. It operates at up to 32 MHz (50 DMIPS), integrates 64 KB flash, 10 KB SRAM, 8 KB data flash, dual 8-bit DACs, 12-bit ADC (17 channels), capacitive touch sensing (24 keys), and supports IEC60730 safety compliance. It targets battery-powered remote controls, smart home sensors, and appliance UIs.
For engineers reviewing the R5F51303AGNE#20 datasheet, R5F51303AGNE#20 pinout, R5F51303AGNE#20 application, or R5F51303AGNE#20 equivalent, key selection criteria include its HWQFN-48 package with 0.5 mm pitch, –40°C to +105°C extended temperature rating, 1.8–5.5 V single-supply operation, sub-µA software standby current (0.37 µA), and integrated CTSU supporting mutual-capacitance matrix layouts.
Technical Context
The R5F51303AGNE#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 includes high-speed on-chip oscillator (32 MHz ±1%), sub-clock (32.768 kHz), PLL, and dedicated IWDT oscillator (15 kHz), all managed via programmable clock dividers and the Clock Accuracy Measurement Circuit (CAC).
Peripheral integration centers on event-driven efficiency: the Event Link Controller (ELC) enables interrupt-free module chaining (e.g., timer-triggered ADC conversion), while the Data Transfer Controller (DTC) supports block/chain transfers across 47 event sources. The capacitive touch unit (CTSU) uses mutual-capacitance mode with up to 24 keys in HWQFN-48 configuration, and the 12-bit ADC achieves 1.4 µs conversion time at 32 MHz ADCLK.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RXv1 32-bit CISC Harvard, 5-stage pipeline, 50 DMIPS @ 32 MHz |
| Flash / RAM / Data Flash | 64 KB / 10 KB / 8 KB - supports background operation (BGO) and 1.8 V programming |
| Operating Voltage / Temp | 1.8–5.5 V supply; –40°C to +105°C ambient - validated for extended industrial environments |
| Low-Power Modes | Software standby (0.37 µA), deep sleep, sleep - with 4.8 µs wake-up from standby |
| ADC / DAC / CTSU | 12-bit ADC (17 ch, 1.4 µs conv.), dual 8-bit DACs (0–AVCC0), CTSU (24-key mutual-capacitance) |
| Communication Interfaces | SCI (3 ch), RIIC (1 ch, 400 kbps), RSPI (1 ch, 16 Mbps), REMC (2 ch) - no RTC or REMC in HWQFN-48 variant |
| Timers & Safety | MTU2 (6 ch), TMR (4 ch), CMT (2 ch), LPT (1 ch), IWDT (14-bit) - IEC60730 self-test support for ADC, clock, RAM, comparator |
Pinout & Package
Packaged in a 48-pin HWQFN (PWQN0048KB-A), 7 × 7 mm, 0.5 mm pitch, with exposed thermal pad. Pin functions are defined per Table 1.4 of R01DS0273EJ0300 Rev.3.00, including dedicated CTSU pins (TS0–TS23), analog supplies (AVCC0/AVSS0/VREFH0/VREFL0), and 38 general-purpose I/Os with 5-V tolerance on 2 pins.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power / Ground | Main digital supply (1.8–5.5 V) and reference ground; decoupling required per layout guidelines |
| AVCC0 / AVSS0 | Analog Power / Ground | Independent analog domain for ADC/DAC; must be routed separately from digital planes |
| TS0–TS23 | Capacitive Touch Sensing | 24 dedicated CTSU electrode pins - configured for mutual-capacitance matrix (max 24 keys in this package) |
| AN000–AN016 | ADC Input Channels | 17 analog input pins - sampling time individually configurable per channel for sensor signal conditioning |
| DA0 / DA1 | DAC Output | Two 8-bit voltage-output DACs - rail-to-rail (0 V to AVCC0), usable for biasing, calibration, or analog waveform generation |
| SCI5_RXD / SCI5_TXD | Asynchronous Serial I/O | Full-duplex UART interface with fine-adjustable baud rate (0–255/255) - suitable for host MCU or sensor bridging |
| RIIC0_SDA / RIIC0_SCL | I²C Bus Interface | Open-drain I²C pins supporting 400 kbps fast-mode - compatible with SMBus and standard I²C peripherals |
| RES# | Active-Low Reset | Asynchronous reset input - internal pull-up; requires external RC or supervisor for reliable power-on sequencing |
Key Features
| Feature | Design Value |
|---|---|
| IEC60730 Safety Support | Hardware-assisted self-diagnostic routines for ADC, clock accuracy (CAC), IWDT, RAM (via DOC), and analog input disconnection detection |
| Event-Driven Peripheral Chaining | ELC enables direct inter-module triggering (e.g., MTU overflow → ADC start) without CPU intervention or ISR latency |
| Low-Power Touch Operation | CTSU operates in deep-sleep mode with sub-µA current draw while scanning 24 keys - ideal for battery-powered remotes |
| Background Data Flash Programming | 8 KB data flash supports 1M program/erase cycles with BGO - firmware updates or parameter storage without halting CPU execution |
| Dual Independent Watchdogs | IWDT (15 kHz dedicated clock) + WDT via software timer - layered safety monitoring for fail-safe embedded control loops |
Applications
| Smart Remote Control | Industrial Panel Sensor Node |
|---|---|
|
Use Scenario: IR/RF remote with touch-sensitive buttons and status LEDs for HVAC or AV equipment. IC Role / Device Role / Timing Role: Main application MCU handling capacitive touch decoding, IR signal generation, LED PWM control, and serial communication to host. Use Value: Integrated CTSU (24 keys) and dual DACs enable precise LED dimming and haptic feedback; 0.37 µA standby extends coin-cell life beyond 5 years. |
Use Scenario: DIN-rail mounted environmental sensor node measuring temperature, humidity, and air quality in factory settings. IC Role / Device Role / Timing Role: Edge-processing MCU acquiring analog sensor data via 12-bit ADC, performing local calibration, and transmitting over I²C/SCI to gateway. Use Value: IEC60730-compliant self-tests ensure long-term reliability; –40°C to +105°C rating guarantees operation in unconditioned enclosures near motors or power supplies. |
| Appliance User Interface | White Goods Control Module |
|
Use Scenario: Touch-enabled front-panel interface for washing machines or microwaves with real-time status display and button feedback. IC Role / Device Role / Timing Role: Dedicated UI controller managing capacitive touch, buzzer tone generation (via TMR), and SPI-driven segment LCD driver. Use Value: Mutual-capacitance CTSU rejects water and EMI; 32 MHz CPU handles debounce, gesture recognition, and audio feedback in <10 ms loop time. |
Use Scenario: Motor control and safety monitor in refrigerators or dishwashers, coordinating compressor, valves, and door sensors. IC Role / Device Role / Timing Role: Safety-critical subsystem MCU executing motor commutation timing (MTU2 PWM), fault detection (comparator B), and watchdog supervision. Use Value: Dual independent watchdogs (IWDT + software) and RAM/ADC self-tests meet Class B IEC60730 requirements; 5-V tolerant I/O interfaces directly with legacy appliance sensors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F51303ADNE#U0 | Same HWQFN-48 package and core, but rated for –40°C to +85°C; lacks extended temp qualification | Suitable for commercial-grade appliances or indoor consumer devices where ambient extremes are not expected | Select when cost sensitivity outweighs extended temperature requirement and safety certification scope is reduced |
| R5F51305AGNE#U0 | 128 KB flash / 16 KB RAM; same package, temp range, and peripheral set - adds memory headroom for OTA updates or larger UI assets | Better suited for feature-rich smart home hubs requiring local voice processing buffers or encrypted firmware storage | Choose when future-proofing memory capacity is critical and BOM cost premium is acceptable for scalability |
Compared with R5F51303AGNE#20, R5F51303ADNE#U0 trades extended temperature support for lower cost in commercial environments, while R5F51305AGNE#U0 provides scalable memory for evolving firmware without changing PCB layout or peripheral integration.
Availability
R5F51303AGNE#20 is available at Aetrix Electronics and suitable for industrial panel sensor nodes, smart remote controls, appliance user interfaces, and white goods control modules requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R5F51303AGNE#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 - including R5F51303AGNE#20 - was designed for cost-sensitive, low-power, touch-enabled embedded systems demanding functional safety (IEC60730) and robust capacitive sensing in compact packages.
FAQ
What is the maximum operating frequency and CPU performance of the R5F51303AGNE#20?
The R5F51303AGNE#20 operates at a maximum frequency of 32 MHz and delivers 50 DMIPS of processing performance. This is achieved using the 32-bit RXv1 CPU core with a 5-stage pipeline, variable-length instruction set, and single-cycle 32×32-bit multiplication capability - enabling efficient real-time control and sensor processing in its target applications.
Does the R5F51303AGNE#20 support capacitive touch sensing, and how many keys are available in its HWQFN-48 package?
Yes, the R5F51303AGNE#20 integrates a Capacitive Touch Sensing Unit (CTSU) supporting up to 24 keys in its PWQN0048KB-A (HWQFN-48) package. This is implemented in mutual-capacitance matrix mode using TS0–TS23 pins, and operates reliably in deep-sleep mode with sub-µA current draw - making it ideal for battery-powered touch interfaces.
What are the memory resources included in the R5F51303AGNE#20?
The R5F51303AGNE#20 includes 64 KB of on-chip flash memory for program code, 10 KB of SRAM for runtime variables, and 8 KB of data flash memory rated for 1,000,000 program/erase cycles. All memory blocks operate with zero wait states at full CPU speed, and the data flash supports Background Operation (BGO) for concurrent execution and reprogramming.
Is the R5F51303AGNE#20 qualified for functional safety standards such as IEC60730?
Yes, the R5F51303AGNE#20 includes hardware-assisted features for IEC60730 Class B compliance, including self-diagnostic routines for the 12-bit ADC, clock frequency accuracy measurement circuit (CAC), independent watchdog timer (IWDT), RAM test assistance (via DOC), and analog input disconnection detection - all documented in the R01DS0273EJ0300 datasheet.
What is the operating temperature range and supply voltage specification for the R5F51303AGNE#20?
The R5F51303AGNE#20 is rated for an operating ambient temperature range of –40°C to +105°C (G-grade) and supports a single supply voltage from 1.8 V to 5.5 V. Its low-power design achieves 0.37 µA supply current in software standby mode and recovers in just 4.8 µs - making it suitable for thermally demanding industrial and appliance environments.
R5F51303AGNE#20 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-WFQFN Exposed Pad
- Series:
- RX130
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- 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:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 10K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 5.5V
- Data Converters:
- A/D 10x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F51303AGNE#20 FAQ
1.How can I place an order for R5F51303AGNE#20 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F51303AGNE#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 R5F51303AGNE#20 reliable?
The price and inventory of R5F51303AGNE#20 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F51303AGNE#20 is usually 5 days.
3.What payment methods are accepted for R5F51303AGNE#20?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F51303AGNE#20 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F51303AGNE#20?
R5F51303AGNE#20 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F51303AGNE#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 R5F51303AGNE#20?
For technical support, including R5F51303AGNE#20 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F51303AGNE#20 requirements.
6.How does Aetrix verify that R5F51303AGNE#20 is sourced from the original manufacturer or authorized distributors?
All R5F51303AGNE#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 R5F51303AGNE#20 meets industry standards.
7.What is the process for return or replacement of R5F51303AGNE#20?
All R5F51303AGNE#20 units undergo pre-shipment inspection (PSI). If there is an issue with R5F51303AGNE#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 R5F51303AGNE#20 part is unused and in its original packaging.
Return procedure for R5F51303AGNE#20:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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