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Renesas R5F52318ADNE#20
- Part No.:
- R5F52318ADNE#20
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-WFQFN Exposed Pad
- Datasheet:
-
R5F52318ADNE#20.pdf
- Description:
- IC MCU 32BIT 512KB FLASH 48HWQFN
- Quantity:
- Payment:
- Shipping:
Inventory:336
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Product details
Overview
R5F52318ADNE#20 from Renesas is a 32-bit RXv2 core microcontroller operating at up to 54 MHz (88.56 DMIPS), featuring 512 KB on-chip flash, 64 KB SRAM, 8 KB data flash, IEEE 754-compliant FPU, and integrated USB 2.0 full-speed host/function/OTG, CAN, SD host interface, capacitive touch sensing (10 channels), 12-bit A/D (12 channels), 12-bit D/A (2 channels), RTC, and TSIP-Lite encryption. It targets industrial HMI and smart sensor nodes requiring secure, low-power, mixed-signal control with USB-C connectivity.
For engineers reviewing the R5F52318ADNE#20 datasheet, R5F52318ADNE#20 pinout, R5F52318ADNE#20 application, or R5F52318ADNE#20 equivalent, this MCU delivers verified 54 MHz real-time performance, hardware-accelerated AES-128/256, deterministic USB+CAN coexistence, and validated IEC60730 self-test support for Class B safety-critical firmware updates and field diagnostics.
Technical Context
The R5F52318ADNE#20 implements the RXv2 CPU core with CISC Harvard architecture, 5-stage pipeline, and variable-length instructions-enabling ultra-compact code density and single-cycle instruction execution at 54 MHz. Its memory subsystem includes no-wait 64 KB SRAM, 512 KB flash with background programming, and 8 KB data flash rated for 1M program/erase cycles.
Peripherals are orchestrated via the Event Link Controller (ELC), enabling interrupt-free timer-triggered ADC conversions, PWM waveform generation, and DMA transfers. The device integrates dual-clock domain operation: ICLK at 54 MHz for CPU/system, PCLKA at 54 MHz for MTU2a, PCLKD at 54 MHz for S12AD, and PCLKB at 32 MHz for most peripherals-including USB PHY clock derived from dedicated PLL.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RXv2 32-bit, 54 MHz max, 88.56 DMIPS, IEEE 754 FPU, MPU, fast interrupt |
| Memory | 512 KB flash (no-wait ≤32 MHz), 64 KB SRAM (no-wait @54 MHz), 8 KB data flash (1M cycles) |
| Analog Peripherals | 12-bit S12ADE ADC (12 ch, 0.83 µs conv.), 12-bit R12DAA DAC (2 ch), TEMPSA sensor, CMPBa (4 ch) |
| Communication | USB 2.0 FS host/function/OTG (12 Mbps), CAN (1 ch, ISO11898-1, 1 Mbps), SCI (5 ch), RIIC (1 ch), RSPI (1 ch), SDHI (1 ch) |
| Timers & Control | MTU2a (6 ch), TPU (6 ch), CMT (4 ch), IWDT (1 ch, dedicated 15 kHz oscillator), LPT (1 ch, sub-clock source) |
| Security & Compliance | TSIP-Lite (AES-128/256, GCM/CBC/CTR, TRNG), IEC60730 self-test assist (ADC, clock, RAM, IWDT) |
| Package & Environment | PWQN0048KB-A: 48-pin HWQFN, 7 × 7 mm, 0.5 mm pitch, −40 to +85°C (D version) |
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 (AOI) and high-density PCB layouts. Pin functions align with RX231 Group 48-pin configuration per Table 1.2 of R01DS0261EJ0120 Rev.1.20.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC, VSS | Power supply / Ground | Dual 1.8–5.5 V supply domains; VCC powers digital core/I/O; VSS provides reference return path |
| XTAL, EXTAL | Main clock oscillator input/output | Supports 1–20 MHz crystal; enables precise timing for USB/RTC and system clock synthesis via PLL |
| USB_VBUS, USB_DP, USB_DM | USB transceiver interface | Full-speed USB 2.0 physical layer; VBUS detection enables OTG role negotiation; internal regulator supports VCC_USB-less operation |
| TXD5, RXD5 | SCI5 serial interface | IrDA-capable UART channel; ELC-linked trigger enables event-driven communication without CPU wake-up |
| CTSU00–CTSU09 | Capacitive touch sensing inputs | 10-channel CTSU support (mutual/self-capacitance); dedicated hardware scan engine reduces CPU load in HMI applications |
| AN00–AN11 | Analog input channels | 12-channel 12-bit ADC input; per-channel sampling time programmability enables multi-sensor signal conditioning |
| DA00, DA01 | Digital-to-analog outputs | 2-channel 12-bit voltage output (0.4–AVCC0−0.5 V); supports analog feedback loops and calibration references |
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 |
| Event Link Controller (ELC) | Enables 61-event direct peripheral linking (e.g., MTU trigger → ADC start → DMA transfer), eliminating interrupt latency in real-time control loops |
| TSIP-Lite security engine | Hardware-accelerated AES-128/256 (GCM/CBC/CTR), TRNG, and key protection prevent firmware cloning and enable secure OTA updates |
| IEC60730 Class B support | Built-in diagnostic assistance for ADC, clock accuracy (CAC), IWDT, and RAM (via DOC) simplifies functional safety certification |
| Low-power timer (LPT) | 16-bit counter running on sub-clock or IWDT oscillator during software standby mode enables precise wake-up scheduling without main CPU power |
Applications
| Industrial HMI Panel | Smart Sensor Node |
|---|---|
Use Scenario: Touch-enabled local control panel for HVAC or PLC interface with USB-C configuration port and CAN bus integration. IC Role / Device Role / Timing Role: Main application controller managing capacitive touch UI, real-time CAN messaging, USB device enumeration, and encrypted firmware updates. Use Value: Integrated CTSU (10 ch), USB+CAN coexistence, and TSIP-Lite eliminate external ICs-reducing BOM cost and PCB area while meeting IEC61000-4-6 immunity requirements. |
Use Scenario: Battery-powered environmental monitor with temperature, humidity, and air quality sensors feeding data over CAN to gateway. IC Role / Device Role / Timing Role: Low-power sensor aggregator performing ADC acquisition, CRC-protected CAN frame assembly, and scheduled USB mass-storage dump. Use Value: Software standby mode with LPT wake-up, 12-bit ADC (0.83 µs), and 1M-cycle data flash enable 10-year field deployment with minimal maintenance. |
| Medical Diagnostic Tool | USB-C Peripheral Controller |
Use Scenario: Portable blood glucose meter with analog front-end, LCD driver, and USB-C data export to clinic PC. IC Role / Device Role / Timing Role: Safety-certified controller executing IEC60730 self-tests, driving 12-bit DAC for calibration reference, and managing USB CDC ACM interface. Use Value: On-chip TSIP-Lite ensures HIPAA-compliant data encryption; built-in ADC disconnection detection prevents false readings from sensor cable faults. |
Use Scenario: USB-C dock controller managing power delivery negotiation, display alt-mode handshaking, and legacy peripheral bridging (CAN/UART). IC Role / Device Role / Timing Role: USB 2.0 function controller with BC1.2 battery charging support, acting as USB device while routing CAN/SCI traffic to host. Use Value: Single-chip USB+CAN+SCI solution replaces discrete bridge ICs; dedicated USB PLL ensures stable 48 MHz clock independent of system clock jitter. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 32-bit MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F52318BDNE#U0 | Same package and pinout; adds CAN module (RSCAN) and SDHI interface | Required for systems needing CAN bus connectivity or SD card logging | Select when CAN or SDIO functionality is mandatory; otherwise R5F52318ADNE#20 offers lower cost and identical core/peripheral set |
| R5F52317ADNE#U0 | Same package; reduced flash (384 KB) and RAM (32 KB); same peripheral count except no USB module | Suitable for cost-sensitive, non-USB applications like standalone CAN nodes or sensor concentrators | Choose for USB-free designs where 384 KB flash suffices; eliminates USB PHY power and layout complexity |
Compared with R5F52318ADNE#20, R5F52318BDNE#U0 adds CAN/SDHI at identical footprint and price premium, while R5F52317ADNE#U0 removes USB and halves memory-making both viable alternatives depending on whether USB or CAN/SDIO defines the system's I/O architecture.
Availability
R5F52318ADNE#20 is available at Aetrix Electronics and suitable for industrial HMI panels, smart sensor nodes, medical diagnostic tools, and USB-C peripheral controllers requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for R5F52318ADNE#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, power, and SoC solutions for automotive, industrial, and IoT markets.
The RX231 Group-including R5F52318ADNE#20-is designed for secure, low-power, mixed-signal applications demanding real-time responsiveness, USB+CAN coexistence, and functional safety compliance in compact form factors.
FAQ
What is the maximum operating frequency and core type of the R5F52318ADNE#20?
The R5F52318ADNE#20 features a 32-bit RXv2 CPU core with a maximum operating frequency of 54 MHz, delivering 88.56 DMIPS performance. It uses a CISC Harvard architecture with 5-stage pipeline and variable-length instructions, enabling single-cycle execution for most operations and ultra-compact code density essential for memory-constrained embedded applications.
Does the R5F52318ADNE#20 include USB and CAN interfaces?
The R5F52318ADNE#20 integrates a full-speed USB 2.0 host/function/OTG module supporting 12 Mbps, BC1.2 charging, and isochronous transfers-but does not include a CAN module. CAN capability is present only in the 'B' variant (e.g., R5F52318BDNE#U0). This makes R5F52318ADNE#20 ideal for USB-centric applications where CAN is unnecessary.
What package type and pin count does the R5F52318ADNE#20 use?
The R5F52318ADNE#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 RoHS-compliant package supports automated optical inspection and high-density PCB assembly, and matches the RX231 Group's 48-pin peripheral mapping defined in Renesas documentation R01DS0261EJ0120.
How much flash, SRAM, and data flash memory does the R5F52318ADNE#20 provide?
The R5F52318ADNE#20 includes 512 KB of on-chip flash memory (with no-wait access up to 32 MHz), 64 KB of zero-wait-state SRAM operating at full 54 MHz, and 8 KB of data flash rated for 1,000,000 program/erase cycles. These memory resources support complex real-time firmware, secure boot partitions, and reliable field-upgrade storage without external memory.
Is the R5F52318ADNE#20 qualified for industrial temperature range and functional safety standards?
Yes, the R5F52318ADNE#20 is rated for −40 to +85°C (D version) and includes hardware-assisted features for IEC60730 Class B compliance-including ADC self-diagnostic, clock accuracy measurement (CAC), independent watchdog timer (IWDT), and RAM test support via the Data Operation Circuit (DOC). These capabilities streamline certification for safety-critical industrial and medical equipment.
R5F52318ADNE#20 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-WFQFN Exposed Pad
- Series:
- RX231
- 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, USB OTG
- Peripherals:
- Capacitive Touch, DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 30
- Program Memory Size:
- 512KB (512K 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 8x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F52318ADNE#20 FAQ
1.How can I place an order for R5F52318ADNE#20 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F52318ADNE#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 R5F52318ADNE#20 reliable?
The price and inventory of R5F52318ADNE#20 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F52318ADNE#20 is usually 5 days.
3.What payment methods are accepted for R5F52318ADNE#20?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F52318ADNE#20 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F52318ADNE#20?
R5F52318ADNE#20 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F52318ADNE#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 R5F52318ADNE#20?
For technical support, including R5F52318ADNE#20 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F52318ADNE#20 requirements.
6.How does Aetrix verify that R5F52318ADNE#20 is sourced from the original manufacturer or authorized distributors?
All R5F52318ADNE#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 R5F52318ADNE#20 meets industry standards.
7.What is the process for return or replacement of R5F52318ADNE#20?
All R5F52318ADNE#20 units undergo pre-shipment inspection (PSI). If there is an issue with R5F52318ADNE#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 R5F52318ADNE#20 part is unused and in its original packaging.
Return procedure for R5F52318ADNE#20:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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