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Renesas R5F52318BGND#00
- Part No.:
- R5F52318BGND#00
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-WFQFN Exposed Pad
- Datasheet:
-
R5F52318BGND#00.pdf
- Description:
- IC MCU 32BIT 512KB FLASH 64WFQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,447
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Product details
Overview
R5F52318BGND#00 from Renesas is a 32-bit RXv2 microcontroller with 54 MHz max operating frequency, 512 KB on-chip flash, 64 KB SRAM, and 8 KB data flash. It integrates USB 2.0 full-speed host/function/OTG, CAN 2.0B (1 Mbps), 24-channel 12-bit A/D converter (0.83 µs conversion), dual 12-bit D/A outputs, capacitive touch sensing (24 keys), FPU (IEEE 754 single-precision), and TSIP-Lite encryption engine. It targets industrial HMI and embedded control systems requiring real-time responsiveness, secure firmware, and mixed-signal interfacing.
For engineers reviewing the R5F52318BGND#00 datasheet, R5F52318BGND#00 pinout, R5F52318BGND#00 application, or R5F52318BGND#00 equivalent, this page delivers verified specifications, package mapping to PWQN0064KC-A (9 × 9 mm HWQFN), functional pinout, real-world use cases in motor control and secure IoT edge nodes, and two validated alternative parts with documented technical and application differences.
Technical Context
The R5F52318BGND#00 implements the RXv2 CPU core with Harvard architecture, 5-stage pipeline, and variable-length instructions-enabling 88.56 DMIPS at 54 MHz. It supports little- or big-endian data arrangement and includes an on-chip FPU compliant with IEEE 754 for deterministic floating-point math in motion control algorithms.
Its peripheral set is orchestrated via the Event Link Controller (ELC), allowing timer-triggered A/D conversions and low-power module activation without CPU intervention. Clock domains are strictly partitioned: ICLK (54 MHz system clock), PCLKA (54 MHz for MTU2a), PCLKD (54 MHz for S12AD), and PCLKB (32 MHz for most peripherals), ensuring predictable timing across mixed-criticality functions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RXv2 32-bit CISC with 5-stage pipeline, 88.56 DMIPS @ 54 MHz - enables real-time deterministic execution of complex control loops |
| Max Operating Frequency | 54 MHz system clock (ICLK) - supports high-speed communication stacks and fast analog sampling |
| Memory | 512 KB flash (no wait states up to 32 MHz), 64 KB SRAM (no wait @ 54 MHz), 8 KB data flash (1M erase cycles) - sufficient for secure OTA updates and runtime parameter storage |
| Analog Peripherals | 24-channel 12-bit A/D (0.83 µs min conversion), 2× 12-bit D/A (0.4–AVCC0−0.5 V output), 2× comparator units - supports closed-loop analog feedback in motor drives |
| Digital Interfaces | USB 2.0 FS host/function/OTG, CAN 2.0B (1 Mbps), 7× SCI, 1× RIIC, 1× RSPI, 1× SSI, 1× SDHI - enables multi-protocol fieldbus connectivity and local storage |
| Security & Safety | TSIP-Lite AES-128/256 (GCM/CBC/ECB), true RNG, MPU, IEC60730 self-test support - meets basic functional safety and firmware integrity requirements |
| Power & Temp | 1.8–5.5 V supply, −40 to +105°C operation (G version), three low-power modes - suitable for unregulated industrial power rails and extended ambient environments |
Pinout & Package
Packaged in a 64-pin HWQFN (PWQN0064KC-A), the R5F52318BGND#00 features a 9 × 9 mm body with 0.5 mm pitch, exposed thermal pad, and 5-V-tolerant I/Os on designated pins. This compact, thermally enhanced package supports high-density PCB layouts in space-constrained industrial modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC, VSS | Core & I/O power supply / ground | Separate 3.3 V domains for analog (AVCC0) and digital sections ensure noise isolation for precision A/D conversion |
| XTAL, EXTAL | Main crystal oscillator input/output | Supports 1–20 MHz crystals for precise system timing; oscillator stop detection enables fail-safe recovery |
| USB_VBUS, USB_DP, USB_DM | USB 2.0 full-speed transceiver interface | Integrated PHY allows direct connection to USB connectors; internal VCC_USB regulator eliminates external LDO for VBUS-powered operation |
| TXD0, RXD0 | SCI0 asynchronous serial interface | Hardware flow control and bit-rate modulation reduce UART errors in noisy industrial environments |
| CTX0–CTX23 | Capacitive touch sensing inputs | Self-capacitance mode supports up to 24 independent touch keys using dedicated CTSU hardware, minimizing CPU overhead |
| AN00–AN23 | Analog input channels for S12ADE | Each channel supports programmable sampling time and disconnection detection - critical for sensor health monitoring |
| DA0, DA1 | 12-bit D/A converter outputs | Independent voltage outputs (0.4–AVCC0−0.5 V) enable analog setpoint generation or calibration signal injection |
Key Features
| Feature | Design Value |
|---|---|
| Floating-point unit (FPU) | IEEE 754-compliant single-precision arithmetic accelerates motor vector control and sensor fusion without software emulation overhead |
| Event Link Controller (ELC) | Enables 61 event sources (e.g., timer overflow, GPIO edge) to trigger peripheral actions directly - reduces interrupt latency and CPU load in real-time tasks |
| TSIP-Lite encryption engine | Hardware-accelerated AES-128/256 with GCM mode provides authenticated encryption for secure firmware updates and encrypted communication |
| Capacitive touch sensing unit (CTSU) | Supports both self- and mutual-capacitance modes - enables robust touch HMI on metal-front panels or curved surfaces without external ICs |
| Realtime clock (RTCe) with battery backup | Sub-clock-driven calendar/timekeeping with leap-year and 30-second adjustment - maintains accurate timestamps during main power loss |
| Low-power timer (LPT) | 16-bit counter running on sub-clock or IWDT oscillator during software standby - enables periodic wake-up for sensor polling without full MCU restart |
Applications
| Industrial Motor Control | Secure IoT Edge Node |
|---|---|
Use Scenario: Closed-loop control of BLDC/PMSM motors in HVAC blowers or pump drives, requiring real-time current sensing, PWM generation, and thermal monitoring. IC Role / Device Role / Timing Role: Central controller executing FOC algorithm, generating complementary PWM via MTU2, sampling current/voltage via S12ADE, and managing CAN bus diagnostics. Use Value: 54 MHz RXv2 core + FPU delivers <1 µs loop time; 24-channel A/D captures phase currents simultaneously; CAN interface enables interoperability with building management systems. |
Use Scenario: Battery-powered environmental sensor node collecting temperature, humidity, and air quality data, then transmitting securely over USB or CAN to gateway. IC Role / Device Role / Timing Role: Sensor aggregator, cryptographic processor (AES-GCM), and protocol bridge between analog sensors, USB host, and CAN network. Use Value: TSIP-Lite ensures firmware authenticity and encrypted payload transmission; low-power timer wakes MCU every 10 s for measurement; 8 KB data flash stores signed sensor logs. |
| Human-Machine Interface (HMI) | Industrial Power Supply Monitoring |
Use Scenario: Touch-enabled front panel for PLCs or inverters, supporting button, slider, and proximity gestures in dusty or wet environments. IC Role / Device Role / Timing Role: Dedicated CTSU frontend with self-capacitance scanning, coupled with SCI/USB for GUI rendering and configuration updates. Use Value: 24-key CTSU operates reliably through 3 mm plastic overlay; built-in disconnection detection alerts on sensor failure; 5-V-tolerant I/O interfaces directly with legacy display controllers. |
Use Scenario: Real-time monitoring of AC/DC power supply parameters (input voltage, output ripple, temperature) with fault logging and alarm signaling. IC Role / Device Role / Timing Role: Analog acquisition hub with simultaneous 12-bit A/D sampling, RTC-stamped event capture, and CAN-based alarm reporting. Use Value: 0.83 µs A/D conversion enables 1 MHz ripple analysis; time-capture on external fault signals correlates anomalies with timestamped logs; LVD circuits provide configurable brownout protection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 32-bit industrial microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F52318AGND#U0 | Same package (PWQN0064KC-A), identical peripherals and memory, but D-version (-40 to +85°C) instead of G-version (-40 to +105°C) | Not rated for extended temperature environments; unsuitable for under-hood automotive or high-ambient industrial enclosures | Select R5F52318AGND#U0 only if operating ambient stays ≤85°C and cost sensitivity outweighs thermal margin |
| R5F52317BGND#U0 | Same package and temperature grade, but reduced flash (384 KB) and RAM (32 KB); no SDHI or CAN support per Table 1.2 | Lacks CAN and SD host interface - cannot serve as drop-in replacement in designs requiring fieldbus connectivity or local data logging | Choose R5F52317BGND#U0 when application fits within smaller memory footprint and omits CAN/SDHI functionality |
Compared with R5F52318BGND#00, R5F52318AGND#U0 trades thermal rating for lower cost in benign environments, while R5F52317BGND#U0 reduces memory and peripheral count to meet simpler control tasks-neither offers pin-to-pin compatibility nor identical feature parity.
Availability
R5F52318BGND#00 is available at Aetrix Electronics and suitable for industrial motor control, secure IoT edge nodes, human-machine interface (HMI) panels, and power supply monitoring systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R5F52318BGND#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 is a global semiconductor leader specializing in microcontrollers, analog, and power solutions for industrial, automotive, and infrastructure markets.
The RX231 Group-including R5F52318BGND#00-is designed for cost-sensitive, high-reliability industrial applications demanding real-time performance, integrated security, and rich analog/mixed-signal capability in compact packages.
FAQ
What is the maximum operating frequency and CPU architecture of the R5F52318BGND#00?
The R5F52318BGND#00 operates at a maximum frequency of 54 MHz using the 32-bit RXv2 CPU core with Harvard architecture, 5-stage pipeline, and variable-length instruction set. It delivers 88.56 DMIPS performance and includes an IEEE 754-compliant floating-point unit for deterministic real-time computation in control applications.
Does the R5F52318BGND#00 support CAN communication, and what is its compliance level?
Yes, the R5F52318BGND#00 integrates a CAN module compliant with ISO 11898-1, supporting standard and extended frames at up to 1 Mbps. It includes 16 message boxes and operates independently of the CPU via the Event Link Controller-enabling reliable fieldbus communication in industrial automation systems.
What package type and pin count does the R5F52318BGND#00 use?
The R5F52318BGND#00 is housed in a 64-pin HWQFN package designated PWQN0064KC-A, measuring 9 × 9 mm with 0.5 mm pitch and an exposed thermal pad. This RoHS-compliant package supports high-density layout and efficient heat dissipation in compact industrial modules.
How much on-chip memory does the R5F52318BGND#00 include, and what are its endurance characteristics?
The R5F52318BGND#00 includes 512 KB of on-chip flash memory (for code and constants), 64 KB of SRAM (zero-wait-state at 54 MHz), and 8 KB of data flash rated for 1,000,000 program/erase cycles. The data flash supports background operation (BGO), enabling concurrent firmware updates and data logging.
What security features are implemented in the R5F52318BGND#00 for firmware protection?
The R5F52318BGND#00 incorporates TSIP-Lite-a hardware security module supporting AES-128/256 in ECB, CBC, and GCM modes, a true random number generator, secure key management, and tamper-resistant access control. These features enable secure boot, encrypted OTA updates, and authenticated communication in IEC 60730-certifiable designs.
R5F52318BGND#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 ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F52318BGND#00 FAQ
1.How can I place an order for R5F52318BGND#00 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F52318BGND#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 R5F52318BGND#00 reliable?
The price and inventory of R5F52318BGND#00 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F52318BGND#00 is usually 5 days.
3.What payment methods are accepted for R5F52318BGND#00?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F52318BGND#00 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F52318BGND#00?
R5F52318BGND#00 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F52318BGND#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 R5F52318BGND#00?
For technical support, including R5F52318BGND#00 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F52318BGND#00 requirements.
6.How does Aetrix verify that R5F52318BGND#00 is sourced from the original manufacturer or authorized distributors?
All R5F52318BGND#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 R5F52318BGND#00 meets industry standards.
7.What is the process for return or replacement of R5F52318BGND#00?
All R5F52318BGND#00 units undergo pre-shipment inspection (PSI). If there is an issue with R5F52318BGND#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 R5F52318BGND#00 part is unused and in its original packaging.
Return procedure for R5F52318BGND#00:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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