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Renesas R5F52318BGNE#40
- Part No.:
- R5F52318BGNE#40
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-WFQFN Exposed Pad
- Datasheet:
-
R5F52318BGNE#40.pdf
- Description:
- IC MCU 32BIT 512KB FLASH 48WFQFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,819
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Product details
Overview
R5F52318BGNE#40 from Renesas is a 32-bit RXv2 microcontroller with 54 MHz max operating frequency, 512 KB on-chip flash, 64 KB SRAM, and integrated FPU compliant with IEEE754. It features USB 2.0 full-speed host/function/OTG, CAN 2.0B (1 Mbps), 24-channel 12-bit ADC (0.83 µs conversion), dual 12-bit DAC, capacitive touch sensing (24 keys), and TSIP-Lite encryption engine. It targets industrial HMI, smart sensor nodes, and USB-connected embedded control systems requiring real-time performance and secure firmware.
For engineers reviewing the R5F52318BGNE#40 datasheet, R5F52318BGNE#40 pinout, R5F52318BGNE#40 application, or R5F52318BGNE#40 equivalent, this MCU delivers deterministic real-time execution (88.56 DMIPS), hardware-accelerated crypto (AES-128/256, GCM, CBC), and mixed-signal integration for compact, low-power designs operating from −40 to +105°C.
Technical Context
The R5F52318BGNE#40 implements the RXv2 CPU core with CISC Harvard architecture, 5-stage pipeline, and variable-length instructions-enabling ultra-compact code and single-cycle instruction execution at 54 MHz. Its memory subsystem includes 512 KB flash (with 32 MHz no-wait access), 64 KB SRAM (no wait states), and 8 KB data flash rated for 1M program/erase cycles with background operation support.
Peripherals are orchestrated via the Event Link Controller (ELC), enabling direct module-to-module triggering without CPU intervention-critical for low-latency response in motor control and sensor fusion. Clocking is managed by multiple oscillators (main, sub, high-/low-speed on-chip) plus dedicated PLLs for system (54 MHz), USB (48 MHz), and IWDT (15 kHz), all monitored by the Clock Accuracy Measurement Circuit (CAC).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RXv2 32-bit, 54 MHz max, 88.56 DMIPS, IEEE754-compliant FPU |
| Memory | 512 KB flash (32 MHz no-wait), 64 KB SRAM (54 MHz no-wait), 8 KB data flash (1M cycles, BGO) |
| Analog Peripherals | 24-channel 12-bit ADC (0.83 µs min conversion), 2× 12-bit DAC (0.4–AVCC0−0.5 V), 2× comparator units (4 channels) |
| Communication | USB 2.0 FS host/function/OTG (12 Mbps), CAN 2.0B (1 Mbps), 7× SCI, 1× I²C, 1× RSPI, 1× SSI, 1× SDHI |
| Security & Timing | TSIP-Lite AES-128/256 (GCM/CBC/ECB), true RNG, RTC with calendar mode, independent watchdog timer (IWDT) |
| Package & Environment | 48-pin HWQFN (PWQN0048KB-A), 7 × 7 mm, 0.5 mm pitch, −40 to +105°C operating range |
Pinout & Package
48-pin HWQFN package (PWQN0048KB-A), 7 × 7 mm body, 0.5 mm pitch, exposed thermal pad, RoHS-compliant. Pinout validated per Renesas R01DS0261EJ0120 Rev.1.20, pages 122–129 (pin assignment tables for 48-pin variant).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC, VSS | Power supply / Ground | Core I/O supply (1.8–5.5 V); separate analog/digital ground pins reduce noise coupling |
| XTAL, EXTAL | Main clock oscillator input/output | Supports 1–20 MHz crystal; enables precise timing for USB and real-time control loops |
| USB_VBUS, USB_DP, USB_DM | USB transceiver interface | Dedicated pins for full-speed USB 2.0; internal regulator allows VCC_USB omission when VCC = 4.0–5.5 V |
| TXD0, RXD0 | SCI0 asynchronous serial interface | Hardware UART for debug console or host communication; supports bit-rate modulation for robust noise immunity |
| CTSU00–CTSU23 | Capacitive touch sensing inputs | 24 dedicated pins for self-capacitance touch keys; supports mutual capacitance matrix up to 144 keys |
| AD00–AD23 | 12-bit A/D converter inputs | 24 analog input channels with per-channel sampling time configuration and disconnection detection |
| DA0, DA1 | 12-bit D/A converter outputs | Two voltage-output DACs (0.4–AVCC0−0.5 V) for analog actuator control or calibration references |
| RESET | Active-low reset input | Asynchronous external reset; complements eight internal reset sources including POR and LVD |
Key Features
| Feature | Design Value |
|---|---|
| Floating-point unit (FPU) | IEEE754-compliant 32-bit single-precision arithmetic accelerates motor control algorithms and sensor fusion math |
| Event Link Controller (ELC) | Enables 61 event types to trigger peripheral actions (e.g., timer-triggered ADC start) without CPU wake-up or ISR overhead |
| TSIP-Lite encryption engine | Hardware AES-128/256 (GCM/CBC), CMAC, true RNG, and key protection prevent firmware cloning and secure OTA updates |
| Low-power timer (LPT) | 16-bit counter running on sub-clock or IWDT oscillator during software standby-enables wake-up every 2–32 s without full system restart |
| Capacitive touch sensing unit (CTSU) | Self- and mutual-capacitance modes with built-in noise rejection; supports up to 24 keys or 144-key matrix without external components |
| Real-time clock (RTCe) | Sub-clock-driven calendar mode with leap-year correction, alarm interrupt, and time-capture on external event signals |
Applications
| Industrial HMI Panel | Smart Sensor Node |
|---|---|
Use Scenario: Touch-enabled local control panel for HVAC or PLC interface with USB configuration port and CAN fieldbus connectivity. IC Role / Device Role / Timing Role: Main application processor executing GUI logic, managing capacitive touch scan, driving USB CDC/DFU for firmware updates, and routing CAN messages. Use Value: Integrated CTSU eliminates external touch controller; USB+CAN coexistence enables both local programming and fieldbus integration in one chip. |
Use Scenario: Battery-powered environmental sensor node measuring temperature, humidity, and gas concentration, transmitting data via USB or CAN. IC Role / Device Role / Timing Role: System-on-chip controller handling ADC acquisition, temperature compensation (via on-die sensor), crypto-secured data packaging, and low-power wake/sleep scheduling. Use Value: 1.8–5.5 V operation and software standby with LPT enable multi-year battery life; TSIP-Lite ensures data integrity in untrusted networks. |
| USB-Capable Industrial Gateway | Secure Firmware Update Module |
Use Scenario: Edge gateway aggregating Modbus RTU over RS485 and forwarding to PC via USB CDC ACM virtual COM port. IC Role / Device Role / Timing Role: Protocol bridge with SCI-based Modbus slave and USB device stack; uses ELC to synchronize ADC sampling with USB IN transfers. Use Value: Dual high-speed peripherals (USB + SCI) run concurrently at full rate; 54 MHz CPU handles protocol translation without external FIFOs. |
Use Scenario: Standalone module validating and installing signed firmware images onto companion MCUs via SPI or UART. IC Role / Device Role / Timing Role: Secure boot loader with TSIP-Lite verifying ECDSA signatures and decrypting AES-GCM payloads before flashing. Use Value: Hardware crypto acceleration reduces signature verification time to <10 ms; data flash BGO allows background image validation during normal operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 32-bit industrial MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F52318AGNE#U0 | Same silicon, D-version (-40 to +85°C) instead of G-version (-40 to +105°C); identical peripherals and memory | Suitable for commercial/industrial environments without extended temperature requirements | Select when ambient operating temperature remains ≤+85°C and cost sensitivity outweighs thermal margin needs |
| R5F52317BGNE#U0 | 384 KB flash, 32 KB RAM, same package and peripheral set; lacks SDHI and CAN modules per Table 1.2 | Targeted at cost-optimized HMI or sensor nodes omitting SD card logging and CAN bus | Choose when application does not require SDHI or CAN, and reduced memory footprint is acceptable |
Compared with R5F52318BGNE#40, the R5F52318AGNE#U0 offers identical functionality at lower thermal rating, while R5F52317BGNE#U0 trades flash/RAM capacity and two key interfaces (SDHI, CAN) for lower BOM cost-neither is pin-compatible but both share the same 48-pin HWQFN footprint and register-level software compatibility.
Availability
R5F52318BGNE#40 is available at Aetrix Electronics and suitable for industrial HMI panels, smart sensor nodes, USB-CAN gateways, and secure firmware update modules requiring stable component supply across extended temperature ranges.
Supply support for R5F52318BGNE#40 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 R5F52318BGNE#40-is designed for high-integration industrial control applications demanding real-time responsiveness, security, and mixed-signal capability in compact packages.
FAQ
What is the maximum operating frequency and CPU performance of the R5F52318BGNE#40?
The R5F52318BGNE#40 operates at a maximum frequency of 54 MHz using the RXv2 32-bit CPU core. At this speed, it achieves 88.56 DMIPS (Dhrystone MIPS) and supports single-cycle instruction execution. Its integrated IEEE754-compliant floating-point unit accelerates math-intensive tasks like motor control and sensor fusion without software emulation overhead-making the R5F52318BGNE#40 suitable for deterministic real-time applications.
Does the R5F52318BGNE#40 support USB and CAN simultaneously, and what are their specifications?
Yes, the R5F52318BGNE#40 integrates both USB 2.0 full-speed host/function/OTG (12 Mbps) and a single-channel CAN 2.0B controller supporting up to 1 Mbps. USB uses dedicated PLL and internal regulator (VCC_USB optional when VCC = 4.0–5.5 V), while CAN complies with ISO11898-1 and includes 16 message boxes. Both operate independently-enabling concurrent use in gateway or diagnostic tools where R5F52318BGNE#40 bridges USB-connected PCs and CAN fieldbus networks.
What analog capabilities does the R5F52318BGNE#40 provide, and how are they configured?
The R5F52318BGNE#40 includes a 24-channel 12-bit A/D converter with minimum 0.83 µs conversion time at 54 MHz ADCLK, two 12-bit D/A converters (0.4–AVCC0−0.5 V output), and four analog comparator channels. Each ADC channel supports configurable sampling time, self-diagnostic mode, and disconnection detection. The DACs and comparators are fully register-controlled and can be triggered by timers or ELC events-allowing precise analog signal conditioning and closed-loop control directly within the R5F52318BGNE#40 without external ICs.
How does the TSIP-Lite security engine in the R5F52318BGNE#40 protect firmware and data?
The TSIP-Lite engine in the R5F52318BGNE#40 provides hardware-accelerated AES-128/256 encryption (GCM, CBC, ECB), CMAC authentication, SHA-256 hashing, and a true random number generator. Keys are protected against physical and logical attacks via access management circuitry. This enables secure boot, encrypted firmware updates, and tamper-resistant data storage-critical for applications where R5F52318BGNE#40 must authenticate remote commands or safeguard sensitive operational parameters in industrial deployments.
What is the package type and thermal specification of the R5F52318BGNE#40?
The R5F52318BGNE#40 uses a 48-pin HWQFN package (PWQN0048KB-A), measuring 7 × 7 mm with 0.5 mm pitch and an exposed thermal pad. It is rated for operation from −40 to +105°C (G-version), making it suitable for under-hood automotive auxiliary systems, industrial drives, and outdoor equipment. The package supports reflow soldering per JEDEC J-STD-020 and provides low thermal resistance for reliable performance in thermally constrained PCB layouts containing the R5F52318BGNE#40.
R5F52318BGNE#40 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-WFQFN Exposed Pad
- Series:
- RX231
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- RXv2
- Core Size:
- 32-Bit
- Speed:
- 54MHz
- Connectivity:
- CANbus, I2C, IrDA, SCI, SD/SDIO, SPI, SSI, UART/USART, USB OTG
- Peripherals:
- 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 ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F52318BGNE#40 FAQ
1.How can I place an order for R5F52318BGNE#40 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F52318BGNE#40 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 R5F52318BGNE#40 reliable?
The price and inventory of R5F52318BGNE#40 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F52318BGNE#40 is usually 5 days.
3.What payment methods are accepted for R5F52318BGNE#40?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F52318BGNE#40 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F52318BGNE#40?
R5F52318BGNE#40 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F52318BGNE#40 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 R5F52318BGNE#40?
For technical support, including R5F52318BGNE#40 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F52318BGNE#40 requirements.
6.How does Aetrix verify that R5F52318BGNE#40 is sourced from the original manufacturer or authorized distributors?
All R5F52318BGNE#40 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 R5F52318BGNE#40 meets industry standards.
7.What is the process for return or replacement of R5F52318BGNE#40?
All R5F52318BGNE#40 units undergo pre-shipment inspection (PSI). If there is an issue with R5F52318BGNE#40, 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 R5F52318BGNE#40 part is unused and in its original packaging.
Return procedure for R5F52318BGNE#40:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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