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Renesas R5F52318BDND#00
- Part No.:
- R5F52318BDND#00
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-WFQFN Exposed Pad
- Datasheet:
-
R5F52318BDND#00.pdf
- Description:
- IC MCU 32BIT 512KB FLASH 64WFQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,520
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Product details
Overview
R5F52318BDND#00 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 to IEEE754. It features USB 2.0 full-speed host/function/OTG, CAN 2.0B (1 Mbps), 24-channel 12-bit A/D converter (0.83 µs conversion), and TSIP-Lite encryption engine supporting AES-128/256 in GCM/CBC modes - deployed in industrial HMI and smart sensor gateway applications.
For engineers reviewing the R5F52318BDND#00 datasheet, R5F52318BDND#00 pinout, R5F52318BDND#00 application, or R5F52318BDND#00 equivalent, key selection considerations include its 64-pin HWQFN (PWQN0064KC-A) package, dual 12-bit D/A outputs, RTC with battery backup, low-power timer active in software standby mode, and ELC-driven event-triggered peripheral coordination without CPU wake-up.
Technical Context
The R5F52318BDND#00 implements the RXv2 CISC Harvard architecture with 5-stage pipeline, variable-length instructions, and 88.56 DMIPS performance at 54 MHz. Its memory subsystem includes 512 KB flash (with 32 MHz no-wait access), 64 KB zero-wait SRAM, and 8 KB data flash rated for 1M program/erase cycles with background operation support.
Peripheral integration centers on event-driven autonomy: the Event Link Controller (ELC) enables 61 event signal types to directly trigger module operations (e.g., A/D conversion start, PWM output toggle) while the CPU remains in deep sleep. Clock domains are fully segmented - ICLK (54 MHz system clock), PCLKA (54 MHz for MTU2a), PCLKD (54 MHz for S12AD), and BCLK (32 MHz external bus) - ensuring deterministic timing across mixed-speed subsystems.
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) |
| Analog Peripherals | 24-channel 12-bit A/D (0.83 µs min conversion), 2-channel 12-bit D/A, 2× analog comparators |
| Communication | USB 2.0 FS host/function/OTG, CAN 2.0B (1 Mbps), 7× SCI, 1× RIIC, 1× RSPI, 1× SSI, 1× SDHI |
| Timers & RTC | 6× TPU, 6× MTU2, 4× CMT, 1× IWDT, 1× LPT (active in software standby), RTC with calendar mode |
| Security & Safety | TSIP-Lite AES-128/256 (GCM/CBC/ECB), true RNG, IEC60730 self-test assist functions |
| Package & Environment | PWQN0064KC-A: 64-pin HWQFN, 9 × 9 mm, 0.5 mm pitch, −40 to +85°C operating range |
Pinout & Package
Packaged in a 64-pin HWQFN (PWQN0064KC-A) measuring 9 × 9 mm with 0.5 mm pitch, the R5F52318BDND#00 supports 43 general-purpose I/O pins (including 34 open-drain and 5 V-tolerant), dedicated USB DP/DM, CANH/CANL, SDIO command/data lines, and multiple peripheral function multiplexing via MPC.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC, VSS | Power supply and ground | Single 1.8–5.5 V supply; decoupling required per datasheet layout guidelines |
| USB_DP / USB_DM | USB 2.0 differential data pair | Full-speed (12 Mbps) transceiver with internal termination; requires 27 Ω series resistors |
| CANH / CANL | CAN bus differential interface | ISO11898-1 compliant; external 120 Ω termination required between CANH/CANL |
| SD0_CMD / SD0_CLK / SD0_DAT0–3 | SD host interface signals | Supports 1-bit/4-bit SD bus; 3.3 V tolerant; pull-ups required on CMD/CLK/DAT lines |
| MTU0A / MTU0B / TPU0A / TPU0B | Timer waveform output pins | Configurable complementary PWM outputs with POE2 control for high-impedance state management |
| AD00–AD23 | Analog input channels | 24-channel 12-bit A/D inputs; sampling time programmable per channel; disconnection detection supported |
Key Features
| Feature | Design Value |
|---|---|
| Event Link Controller (ELC) | Direct hardware routing of 61 event sources to peripherals (e.g., timer trigger → A/D start), eliminating interrupt latency and CPU wake-up overhead |
| Low-Power Timer (LPT) | 16-bit counter running on sub-clock (32.768 kHz) or IWDT oscillator during software standby, enabling periodic wake-up without full system restart |
| Capacitive Touch Sensing Unit (CTSU) | 24-channel self-capacitance or 144-key mutual-capacitance matrix support with built-in noise cancellation and auto-calibration |
| TSIP-Lite Encryption Engine | Hardware-accelerated AES-128/256 with GCM authentication, secure key storage, and true random number generation for firmware signing and secure boot |
| Real-Time Clock (RTCe) | Sub-clock-driven calendar with leap-year correction, alarm/periodic interrupts, and time-capture on external event pin assertion |
Applications
| Industrial HMI Panel | Smart Sensor Gateway |
|---|---|
Use Scenario: Touch-enabled local operator interface for PLC-controlled machinery with real-time status display and parameter adjustment. IC Role / Device Role / Timing Role: Main controller executing UI rendering, capacitive touch decoding, CAN bus communication with field devices, and USB OTG for configuration updates. Use Value: Integrated CTSU eliminates external touch controller; ELC synchronizes touch scan completion with display refresh; RTC maintains accurate timestamps for event logs. | Use Scenario: Edge node aggregating temperature, pressure, and vibration data from multiple sensors, performing local preprocessing, and forwarding via CAN or USB to central SCADA. IC Role / Device Role / Timing Role: Data acquisition hub managing 24-channel A/D sampling, SD card logging, encrypted data packaging, and battery-backed time-stamped storage. Use Value: 0.83 µs A/D conversion enables high-frequency sampling; 8 KB data flash supports robust firmware update rollback; TSIP-Lite secures OTA payloads. |
| USB-Capable Industrial Programmer | Secure Firmware Update Module |
Use Scenario: Field-deployable tool for reprogramming legacy controllers via USB host interface and SPI/I2C target communication. IC Role / Device Role / Timing Role: USB host controller interfacing with PC, managing target device protocol stacks (SPI flash, I2C EEPROM), and verifying firmware integrity before write. Use Value: On-chip USB host PHY eliminates external transceiver; CRC calculator accelerates checksum validation; 512 KB flash stores multiple firmware images. | Use Scenario: Standalone module validating and installing signed firmware updates onto safety-critical embedded systems using secure boot chain. IC Role / Device Role / Timing Role: Cryptographic co-processor performing AES-GCM decryption, signature verification, and secure key derivation prior to flash programming. Use Value: TSIP-Lite prevents key extraction; true RNG seeds secure session keys; background data flash writes allow concurrent validation and storage. |
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 |
|---|---|---|---|
| R5F52318ADND#U0 | No TSIP-Lite security engine; identical package, memory, and peripheral set otherwise | Unsecured firmware loading and data transmission; suitable for cost-sensitive non-connected devices | Select when cryptographic acceleration and secure key management are not required |
| R5F52317BDND#U0 | 384 KB flash, 32 KB RAM, same peripherals and package; lacks SDHI and CAN modules | Reduced local storage and no CAN bus connectivity; appropriate for simpler sensor nodes or UI-only endpoints | Choose for lower-cost designs where SD card logging and CAN fieldbus are unnecessary |
Compared with R5F52318ADND#U0 and R5F52317BDND#U0, the R5F52318BDND#00 uniquely delivers full security (TSIP-Lite), maximum memory (512 KB/64 KB), and complete peripheral complement (CAN + SDHI) in the 64-pin HWQFN footprint - making it optimal for connected, upgradable, and safety-aware industrial edge nodes.
Availability
R5F52318BDND#00 is available at Aetrix Electronics and suitable for industrial HMI panels, smart sensor gateways, USB-capable programmers, and secure firmware update modules requiring stable component supply across extended temperature and long product lifecycles.
Supply support for R5F52318BDND#00 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 RX231 Group - to which R5F52318BDND#00 belongs - was designed for industrial automation and human-machine interfaces requiring real-time responsiveness, functional safety support (IEC60730), and rich connectivity including USB, CAN, and SD.
FAQ
What is the maximum operating frequency and core architecture of the R5F52318BDND#00?
The R5F52318BDND#00 operates at a maximum frequency of 54 MHz using the 32-bit RXv2 CPU core, delivering 88.56 DMIPS performance. It features a 5-stage pipeline, variable-length instruction set, IEEE754-compliant floating-point unit, and memory protection unit - all confirmed in the official R01DS0261EJ0120 datasheet. This architecture enables deterministic real-time execution in industrial control loops.
Does the R5F52318BDND#00 support USB host functionality and what modes are available?
Yes, the R5F52318BDND#00 integrates a USB 2.0 host/function/OTG module supporting full-speed (12 Mbps) and low-speed (1.5 Mbps) operation, isochronous transfers, and Battery Charging Specification 1.2. It includes an internal USB power supply, eliminating need for external VCC_USB regulation when VCC is 4.0–5.5 V - a capability explicitly documented for the R5F52318BDND#00 in Table 1.1 and Section 1.1 of the datasheet.
What are the flash and RAM capacities of the R5F52318BDND#00, and are they zero-wait at maximum speed?
The R5F52318BDND#00 contains 512 KB of on-chip flash memory and 64 KB of SRAM. Flash access is zero-wait up to 32 MHz; above that, wait states apply unless accelerated by ROM accelerator hits. SRAM provides zero-wait access at the full 54 MHz system clock - verified in Table 1.1 (Page 2) and Section 1.1 "Memory" of the R01DS0261EJ0120 datasheet.
Which communication interfaces does the R5F52318BDND#00 support, and is CAN included?
The R5F52318BDND#00 supports USB 2.0, CAN 2.0B (1 Mbps), 7-channel SCI, 1-channel I2C, 1-channel RSPI, 1-channel SSI, and 1-channel SD host interface. CAN is explicitly enabled in this part variant - Table 1.2 (Page 6) confirms CAN module availability for 64-pin packages in the RX231 Group, and Table 1.3 (Page 7) lists R5F52318BDND#U0 with "Available" under the CAN column.
What security features are implemented in the R5F52318BDND#00, and how do they differ from the 'A' variant?
The R5F52318BDND#00 includes TSIP-Lite: a hardware encryption engine supporting AES-128/256 in GCM/CBC/ECB modes, true random number generation, and secure key management. Unlike the R5F52318ADND#U0 ('A' variant), the 'B' variant enables TSIP-Lite - confirmed in Table 1.3 (Page 7), where "Security Function" is marked "Available" for R5F52318BDND#U0 and "Not available" for R5F52318ADND#U0.
R5F52318BDND#00 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-WFQFN Exposed Pad
- Series:
- RX231
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- RXv2
- Core Size:
- 32-Bit Single-Core
- Speed:
- 54MHz
- Connectivity:
- CANbus, I2C, IrDA, SCI, SD/SDIO, SPI, SSI, USB OTG
- Peripherals:
- Capacitive Touch, DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 43
- 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 12x12b; D/A 2x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F52318BDND#00 FAQ
1.How can I place an order for R5F52318BDND#00 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F52318BDND#00 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 R5F52318BDND#00 reliable?
The price and inventory of R5F52318BDND#00 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F52318BDND#00 is usually 5 days.
3.What payment methods are accepted for R5F52318BDND#00?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F52318BDND#00 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F52318BDND#00?
R5F52318BDND#00 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F52318BDND#00 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 R5F52318BDND#00?
For technical support, including R5F52318BDND#00 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F52318BDND#00 requirements.
6.How does Aetrix verify that R5F52318BDND#00 is sourced from the original manufacturer or authorized distributors?
All R5F52318BDND#00 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 R5F52318BDND#00 meets industry standards.
7.What is the process for return or replacement of R5F52318BDND#00?
All R5F52318BDND#00 units undergo pre-shipment inspection (PSI). If there is an issue with R5F52318BDND#00, 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 R5F52318BDND#00 part is unused and in its original packaging.
Return procedure for R5F52318BDND#00:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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