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Renesas R5F52306ADNE#20
- Part No.:
- R5F52306ADNE#20
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-WFQFN Exposed Pad
- Datasheet:
-
R5F52306ADNE#20.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 48HWQFN
- Quantity:
- Payment:
- Shipping:
Inventory:832
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Product details
Overview
R5F52306ADNE#20 from Renesas is a 32-bit RXv2 microcontroller targeting industrial and consumer embedded control applications, featuring a 54 MHz CPU core delivering 88.56 DMIPS, on-chip 256 KB flash memory, 32 KB SRAM, 8 KB data flash, and integrated 12-bit A/D (24-channel) and D/A (2-channel) converters. It operates across −40 to +85°C with single-supply 1.8–5.5 V support and includes hardware encryption (TSIP-Lite), capacitive touch sensing (24-key self-capacitance), RTC, and low-power timer.
For engineers reviewing the R5F52306ADNE#20 datasheet, R5F52306ADNE#20 pinout, R5F52306ADNE#20 application, or R5F52306ADNE#20 equivalent, key selection considerations include its 48-pin HWQFN (PWQN0048KB-A, 7 × 7 mm, 0.5 mm pitch) package, absence of CAN and SDHI modules (per Table 1.3), USB 2.0 full-speed host/function/OTG capability, and IEC60730-compliant safety features including self-diagnostic A/D and IWDT.
Technical Context
The R5F52306ADNE#20 implements the RXv2 CPU core with IEEE 754-compliant 32-bit floating-point unit, 32-bit multiply-accumulate, and fast interrupt response-enabling deterministic real-time control in motor drives and sensor fusion. Its clock system integrates PLL, USB-dedicated PLL (4/6/8/12 MHz), sub-clock oscillator (32.768 kHz), and CAC for frequency accuracy monitoring.
Peripheral integration centers on event-driven operation via ELC, supporting linked module activation without CPU intervention during sleep modes. The MCU supports three low-power states (sleep, deep sleep, software standby), with LPT running on sub-clock or IWDT oscillator during standby, and MPU-enforced memory protection for secure firmware execution.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RXv2 32-bit, 54 MHz max, 88.56 DMIPS - enables high-efficiency C/C++ code execution for real-time control loops |
| Memory | 256 KB flash (1.8 V programmable), 32 KB SRAM (no wait states at 54 MHz), 8 KB data flash (1M erase cycles) - supports field firmware updates and parameter storage |
| Analog Peripherals | 12-bit S12ADE A/D converter (24 channels, 0.83 µs conversion), 12-bit R12DAA D/A (2 channels, 0.4–AVCC0−0.5 V output) - suitable for closed-loop analog signal conditioning |
| Communication | USB 2.0 full-speed host/function/OTG (12 Mbps), 7 SCI channels (including IrDA via SCI5), 1 I²C (400 kbps), 1 RSPI (16 Mbps), no CAN or SDHI - balances connectivity with cost-optimized peripheral set |
| Security & Safety | TSIP-Lite AES-128/256 (GCM/ECB/CBC), true random number generator, IEC60730 self-test functions for A/D, IWDT, and RAM - meets Class B functional safety requirements |
| Package & Environment | PWQN0048KB-A: 48-pin HWQFN, 7 × 7 mm, 0.5 mm pitch, −40 to +85°C - compact footprint for space-constrained industrial HMI and appliance control |
Pinout & Package
PWQN0048KB-A is a 48-pin wettable flank QFN package (7 × 7 mm, 0.5 mm pitch) with exposed thermal pad, optimized for automated optical inspection and thermal dissipation in compact industrial designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC, VSS | Power supply and ground | Dual VCC/VSS pairs ensure stable core/peripheral rail decoupling; 5-V-tolerant I/O allows direct interface with legacy logic |
| XTAL, EXTAL | Main clock oscillator terminals | Support 1–20 MHz crystal or external clock input; required for precise timing in USB and RTC applications |
| USB_VBUS, USB_DP, USB_DM | USB transceiver interface | Full-speed USB 2.0 differential pair with internal VBUS detection - enables self-powered device operation without external USB power regulation |
| CTSU_RX0–CTSU_RX23 | Capacitive touch sense inputs | 24 dedicated CTSU channels support self-capacitance key scanning up to 24 independent buttons with noise immunity |
| AD00–AD23 | Analog input channels | 24-pin-mapped A/D inputs with per-channel sampling time control - critical for multi-sensor acquisition in environmental monitoring |
| DA0, DA1 | Digital-to-analog outputs | Two buffered 12-bit voltage outputs (0.4–AVCC0−0.5 V) - used for reference generation or analog actuator control |
Key Features
| Feature | Design Value |
|---|---|
| Floating-point unit (FPU) | IEEE 754-compliant 32-bit single-precision arithmetic accelerates motor control algorithms and sensor fusion math without software library overhead |
| Event Link Controller (ELC) | Direct hardware linking of 61 event sources (e.g., timer overflow → A/D trigger) eliminates CPU polling and reduces latency in deterministic systems |
| Capacitive Touch Sensing Unit (CTSU) | Self-capacitance mode supports 24-key matrix with built-in noise cancellation - enables robust touch interfaces in noisy industrial environments |
| Low-power timer (LPT) | 16-bit counter operating on sub-clock or IWDT oscillator during software standby - maintains timekeeping with <1 µA current draw |
| IEC60730 compliance support | Hardware-assisted RAM test (DOC), A/D disconnection detection, and IWDT clock validation - reduces certification effort for household appliances |
Applications
| Industrial HMI Panel | Smart Appliance Control |
|---|---|
Use Scenario: Touch-enabled control panel for HVAC or PLC operator interface with local display and relay control. IC Role / Device Role / Timing Role: Main system controller executing UI logic, reading capacitive keys, driving relays via GPIO, and managing USB-based configuration updates. Use Value: Integrated CTSU eliminates external touch controller IC; 24-channel A/D monitors temperature/humidity sensors; USB OTG enables field firmware upgrades via thumb drive. |
Use Scenario: Washing machine main board performing motor phase control, water level sensing, and user interface management. IC Role / Device Role / Timing Role: Real-time motor control executor using MTU2 PWM outputs, A/D acquisition of pressure/temperature signals, and TSIP-Lite for encrypted communication with cloud gateway. Use Value: RXv2 FPU enables efficient Clarke/Park transforms; 54 MHz core sustains 20 kHz PWM carrier frequency; IEC60730 diagnostics satisfy UL60730 certification. |
| Energy Monitoring Gateway | Medical Sensor Hub |
Use Scenario: DIN-rail mounted energy meter aggregating current/voltage readings from CT sensors and communicating via USB to building management system. IC Role / Device Role / Timing Role: Data acquisition hub synchronizing 24-channel A/D sampling with precise 54 MHz system clock, buffering results in SRAM, and transmitting via USB CDC class. Use Value: 0.83 µs A/D conversion enables >1 MHz effective sampling rate; 8 KB data flash stores calibration coefficients and historical logs; LVD detects brown-out events. |
Use Scenario: Portable patient monitor collecting ECG, temperature, and SpO₂ signals with local display and USB data export. IC Role / Device Role / Timing Role: Signal conditioner and aggregator converting analog biosignals via 12-bit A/D, generating analog references via D/A, and securing data with AES-GCM before USB transfer. Use Value: TSIP-Lite prevents firmware tampering; 12-bit D/A provides precision bias voltages for analog front-end; −40 to +85°C rating ensures reliability in clinical environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F52305ADNE#U0 | 128 KB flash, 32 KB SRAM, no data flash - reduced memory capacity and no background programming capability | Suitable for simpler control tasks without field-upgrade or data-logging requirements | Select when firmware size <128 KB and EEPROM-like parameter storage is unnecessary |
| R5F52316ADNE#U0 | 256 KB flash, 32 KB SRAM, 8 KB data flash, but adds CAN interface - identical memory and package, plus ISO11898-1 compliant CAN channel | Required for industrial networks using CANopen or DeviceNet protocols | Choose when CAN bus connectivity is mandatory; otherwise R5F52306ADNE#20 offers lower cost and same core/peripheral set |
Compared with R5F52305ADNE#U0, the R5F52306ADNE#20 provides essential data flash for runtime parameter storage; compared with R5F52316ADNE#U0, it omits CAN to reduce BOM cost and simplify layout where bus networking is absent.
Availability
R5F52306ADNE#20 is available at Aetrix Electronics and suitable for industrial HMI panels, smart appliance controllers, energy monitoring gateways, and medical sensor hubs requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for R5F52306ADNE#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 is a global semiconductor leader specializing in microcontrollers, analog, and power solutions for automotive, industrial, and IoT markets.
The RX230 Group, which includes the R5F52306ADNE#20, was designed for cost-sensitive industrial and consumer applications requiring high computational throughput, integrated analog peripherals, and functional safety support without CAN or SDIO complexity.
FAQ
What is the maximum operating frequency and CPU performance of the R5F52306ADNE#20?
The R5F52306ADNE#20 operates at a maximum frequency of 54 MHz using the RXv2 32-bit CPU core, achieving 88.56 DMIPS. Its architecture includes a 5-stage pipeline, variable-length instructions, and hardware FPU-delivering deterministic real-time performance for motor control and sensor processing. This performance level is confirmed in the R01DS0261EJ0120 datasheet Section 1.1.
Does the R5F52306ADNE#20 include CAN or SD host interface functionality?
No, the R5F52306ADNE#20 does not include CAN or SD host interface (SDHI) modules. Per Table 1.3 in the R01DS0261EJ0120 datasheet, these peripherals are explicitly marked "Not available" for all R5F52306 variants-including R5F52306ADNE#20-in the RX230 Group. This distinguishes it from higher-pin-count RX231 devices that support both.
What package type and pin count does the R5F52306ADNE#20 use?
The R5F52306ADNE#20 uses the PWQN0048KB-A package: a 48-pin wettable flank QFN measuring 7 × 7 mm with 0.5 mm pitch and an exposed thermal pad. This compact, surface-mount package supports automated optical inspection and is specified in Table 1.2 and Figure 1.1 of the R01DS0261EJ0120 datasheet.
What security and functional safety features does the R5F52306ADNE#20 provide?
The R5F52306ADNE#20 integrates TSIP-Lite for AES-128/256 encryption (GCM/ECB/CBC), true random number generation, and IEC60730-compliant self-test functions-including A/D disconnection detection, IWDT clock validation, and DOC-assisted RAM testing. These features are documented in Sections 1.1 and 1.2 of the R01DS0261EJ0120 datasheet.
How does the capacitive touch sensing unit (CTSU) operate on the R5F52306ADNE#20?
The R5F52306ADNE#20's CTSU supports self-capacitance mode with up to 24 dedicated input pins (CTSU_RX0–CTSU_RX23), enabling robust touch button detection without external components. It includes built-in noise cancellation and automatic calibration-detailed in Section 1.1 "Capacitive touch sensing unit" of the R01DS0261EJ0120 datasheet.
R5F52306ADNE#20 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-WFQFN Exposed Pad
- Series:
- RX230
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- RXv2
- Core Size:
- 32-Bit Single-Core
- Speed:
- 54MHz
- Connectivity:
- I2C, IrDA, SCI, SPI, SSI
- Peripherals:
- Capacitive Touch, DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 34
- Program Memory Size:
- 256KB (256K 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 8x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F52306ADNE#20 FAQ
1.How can I place an order for R5F52306ADNE#20 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F52306ADNE#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 R5F52306ADNE#20 reliable?
The price and inventory of R5F52306ADNE#20 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F52306ADNE#20 is usually 5 days.
3.What payment methods are accepted for R5F52306ADNE#20?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F52306ADNE#20 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F52306ADNE#20?
R5F52306ADNE#20 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F52306ADNE#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 R5F52306ADNE#20?
For technical support, including R5F52306ADNE#20 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F52306ADNE#20 requirements.
6.How does Aetrix verify that R5F52306ADNE#20 is sourced from the original manufacturer or authorized distributors?
All R5F52306ADNE#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 R5F52306ADNE#20 meets industry standards.
7.What is the process for return or replacement of R5F52306ADNE#20?
All R5F52306ADNE#20 units undergo pre-shipment inspection (PSI). If there is an issue with R5F52306ADNE#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 R5F52306ADNE#20 part is unused and in its original packaging.
Return procedure for R5F52306ADNE#20:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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