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Renesas R5F52318AGFM#50
- Part No.:
- R5F52318AGFM#50
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F52318AGFM#50.pdf
- Description:
- IC MCU 32BIT 512KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,059
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Product details
Overview
R5F52318AGFM#50 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 interface (ISO11898-1), 24-channel 12-bit A/D converter (0.83 µs conversion), and capacitive touch sensing unit supporting up to 24 keys - deployed in industrial HMI and smart appliance control systems.
For engineers reviewing the R5F52318AGFM#50 datasheet, R5F52318AGFM#50 pinout, R5F52318AGFM#50 application, or R5F52318AGFM#50 equivalent, this MCU delivers deterministic real-time performance with ELC-driven event linking, low-power software standby mode with LPT operation, and TSIP-Lite encryption for secure firmware updates and data handling in connected embedded devices.
Technical Context
The R5F52318AGFM#50 implements the RXv2 CISC Harvard architecture with 5-stage pipeline, variable-length instructions, and on-chip MPU for memory protection. Its clock system supports independent domain clocks: ICLK at 54 MHz for CPU, PCLKA at 54 MHz for MTU2a, PCLKD at 54 MHz for S12AD, and PCLKB at 32 MHz for most peripherals.
It integrates dual timer subsystems - six-channel TPU and six-channel MTU2 - both capable of generating A/D conversion triggers and supporting phase counting, complementary PWM, and buffered waveform output via POE2. The ELC enables direct inter-module triggering without CPU intervention, even during sleep modes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RXv2 32-bit, 54 MHz max, 88.56 DMIPS, IEEE754-compliant FPU, 32-bit MAC, hardware divider |
| Memory | 512 KB flash (no-wait ≤32 MHz), 64 KB SRAM (no-wait at 54 MHz), 8 KB data flash (1M erase cycles) |
| Analog Peripherals | 24-channel 12-bit A/D (0.83 µs min conversion), 2-channel 12-bit D/A, 2× comparator units, temperature sensor |
| Communication | USB 2.0 FS host/function/OTG, CAN (1 Mbps, ISO11898-1), 7× SCI, 1× RIIC, 1× RSPI, 1× SSI, 1× SDHI |
| Timers & Control | 6× TPU + 6× MTU2 channels, 4× CMT, 1× LPT, RTC with calendar mode, IWDT with dedicated 15-kHz oscillator |
| Security & Low Power | TSIP-Lite AES-128/256 (GCM/CBC/ECB), 3 low-power modes, 1.8–5.5 V supply, −40 to +105°C operation |
Pinout & Package
Package: PLQP0064KB-C - 64-pin LFQFP, 10 × 10 mm body, 0.5 mm pitch, exposed pad, RoHS compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC, VSS | Power supply / Ground | Dual 1.8–5.5 V core/analog supply pins; multiple VSS pins ensure low-noise grounding for analog and digital domains |
| XTAL, EXTAL | Main clock oscillator interface | Connects to 1–20 MHz crystal; enables high-accuracy system timing and PLL input for 54 MHz ICLK generation |
| RTC_XT1, RTC_XT2 | Sub-clock oscillator interface | 32.768 kHz crystal connection for RTC and LPT operation during software standby mode |
| 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-free operation |
| TXD0, RXD0 | SCI0 asynchronous serial interface | Primary debug and bootloader UART; supports baud rate generation, LSB/MSB-first transfer, and bit modulation for noise immunity |
| CTX0–CTX23 | Capacitive touch sensing inputs | 24 dedicated CTSU channels; self-capacitance mode supports single-key-per-pin configuration for robust front-panel HMI |
Key Features
| Feature | Design Value |
|---|---|
| Event Link Controller (ELC) | 61 event sources directly trigger 16 peripheral modules without CPU interrupt latency - enabling deterministic low-power sensor fusion |
| TSIP-Lite Encryption Engine | AES-128/256 in GCM/CBC/ECB modes with true random number generator and key access control - meets IEC60730 Class B security requirements |
| Realtime Clock (RTCe) | Calendar count mode with leap-year correction, alarm/periodic interrupts, and external event-triggered time capture - supports precise timestamping in data loggers |
| Low-Power Timer (LPT) | 16-bit counter running on sub-clock or IWDT oscillator during software standby - enables wake-up at programmable intervals without full system restart |
| Capacitive Touch Sensing Unit (CTSU) | Self-capacitance support for 24 keys with built-in noise cancellation and disconnection detection - eliminates need for external touch controller in appliance UIs |
Applications
| Industrial HMI Panel | Smart Appliance Controller |
|---|---|
|
Use Scenario: Touch-enabled display interface for PLC operator terminals with real-time status monitoring and parameter adjustment. IC Role / Device Role / Timing Role: Main application processor executing RTOS, driving capacitive touch overlay, managing USB CDC for PC configuration, and synchronizing CAN bus diagnostics. Use Value: Integrated CTSU and USB/SDHI eliminate external ICs; 54 MHz RXv2 core ensures <100 µs response to touch events and CAN frame processing. |
Use Scenario: Central control unit in refrigerator or washing machine managing motor drives, temperature sensors, user interface, and cloud connectivity. IC Role / Device Role / Timing Role: System-on-chip controller handling A/D acquisition from NTC sensors, PWM motor control via MTU2, and secure OTA firmware updates via TSIP-Lite. Use Value: On-chip 12-bit D/A generates precise reference voltages for analog sensor biasing; −40 to +105°C rating ensures reliability in sealed compressor environments. |
| Energy Metering Gateway | Medical Diagnostic Device |
|
Use Scenario: Substation gateway aggregating Modbus RTU data from smart meters and forwarding via USB or CAN to SCADA systems. IC Role / Device Role / Timing Role: Protocol translation engine using SCI with bit modulation for noise-immune RS-485 communication and ELC-synchronized CAN message scheduling. Use Value: Dual SCI interfaces allow simultaneous Modbus master/slave operation; CRC calculator accelerates frame integrity checks without CPU load. |
Use Scenario: Portable blood glucose monitor requiring secure data storage, precision analog measurement, and USB HID interface for clinic data export. IC Role / Device Role / Timing Role: Safety-critical controller performing self-diagnostic A/D calibration, encrypted EEPROM logging, and RTC-stamped result storage. Use Value: Built-in A/D self-test and analog input disconnection detection satisfy IEC60730 Class B; TSIP-Lite prevents unauthorized firmware modification. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 32-bit MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F52318AGFP#30 | 100-pin LFQFP (14 × 14 mm); adds external bus interface and 2 additional SCI channels | Suitable for designs requiring external memory expansion or multi-protocol serial gateways | Select when board layout accommodates larger package and external memory mapping is needed |
| R5F52317AGFM#30 | 384 KB flash, same 64-pin LFQFP package; identical peripheral set except reduced flash and no SDHI | Targeted at cost-sensitive HMI or sensor nodes where SD card interface is unnecessary | Choose for firmware footprint <384 KB and no SD host functionality required |
Compared with R5F52318AGFM#50, the R5F52318AGFP#30 offers greater I/O and memory expansion capability at the cost of board area, while R5F52317AGFM#30 reduces flash capacity and removes SDHI - making it suitable for streamlined applications where those features are unused.
Availability
R5F52318AGFM#50 is available at Aetrix Electronics and suitable for industrial HMI, smart appliance control, and energy metering gateways requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R5F52318AGFM#50 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 R5F52318AGFM#50, is engineered for high-integrity industrial and consumer applications demanding real-time responsiveness, functional safety support (IEC60730), and integrated security - with emphasis on human-machine interaction and edge intelligence.
FAQ
What is the maximum operating frequency and core type of the R5F52318AGFM#50?
The R5F52318AGFM#50 operates at a maximum frequency of 54 MHz using the 32-bit RXv2 CPU core. This core delivers 88.56 DMIPS performance and includes an IEEE754-compliant single-precision floating-point unit, 32-bit multiply-accumulate instructions, and a hardware divider with two-cycle minimum execution time. Its 5-stage pipeline and variable-length instruction set enable compact, high-efficiency code execution critical for real-time embedded applications.
Does the R5F52318AGFM#50 support USB device and host functionality?
Yes, the R5F52318AGFM#50 integrates a USB 2.0 host/function module compliant with full-speed (12 Mbps) and low-speed (1.5 Mbps) operation, including OTG support and isochronous transfers. It also supports BC1.2 battery charging detection and provides an internal USB power supply - allowing operation without external VCC_USB input when VCC is between 4.0 V and 5.5 V. This makes R5F52318AGFM#50 suitable for dual-role portable and docking applications.
What analog peripherals are integrated into the R5F52318AGFM#50?
The R5F52318AGFM#50 integrates a 24-channel 12-bit A/D converter with 0.83 µs minimum conversion time, two 12-bit D/A channels, two analog comparator units (four total channels), and an on-chip temperature sensor. The A/D converter supports self-diagnostic functions, analog input disconnection detection, and flexible sampling time per channel - all essential for precision sensor interfacing in industrial and medical applications where R5F52318AGFM#50 serves as the primary signal acquisition engine.
Is the R5F52318AGFM#50 qualified for extended temperature operation?
Yes, the R5F52318AGFM#50 is rated for operation from −40°C to +105°C (G version), making it suitable for under-hood automotive accessories, industrial motor drives, and sealed-appliance environments. This extended temperature grade is confirmed in Table 1.4 of the official datasheet R01DS0261EJ0120, and the device maintains full specification compliance - including flash programming voltage tolerance and timing accuracy - across this full range.
What security features does the R5F52318AGFM#50 provide for firmware protection?
The R5F52318AGFM#50 includes TSIP-Lite, a hardware-accelerated security engine supporting AES-128/256 in GCM, CBC, ECB, CMAC, XTS, and CTR modes, plus SHA-256 hash and a true random number generator. Key access is strictly controlled by an on-chip access management circuit, preventing unauthorized readout or tampering. These features enable secure boot, encrypted firmware updates, and protected data logging - fulfilling IEC60730 Class B requirements without external security ICs.
R5F52318AGFM#50 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- RX231
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- -
- 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:
- 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:
R5F52318AGFM#50 FAQ
1.How can I place an order for R5F52318AGFM#50 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F52318AGFM#50 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 R5F52318AGFM#50 reliable?
The price and inventory of R5F52318AGFM#50 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F52318AGFM#50 is usually 5 days.
3.What payment methods are accepted for R5F52318AGFM#50?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F52318AGFM#50 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F52318AGFM#50?
R5F52318AGFM#50 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F52318AGFM#50 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 R5F52318AGFM#50?
For technical support, including R5F52318AGFM#50 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F52318AGFM#50 requirements.
6.How does Aetrix verify that R5F52318AGFM#50 is sourced from the original manufacturer or authorized distributors?
All R5F52318AGFM#50 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 R5F52318AGFM#50 meets industry standards.
7.What is the process for return or replacement of R5F52318AGFM#50?
All R5F52318AGFM#50 units undergo pre-shipment inspection (PSI). If there is an issue with R5F52318AGFM#50, 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 R5F52318AGFM#50 part is unused and in its original packaging.
Return procedure for R5F52318AGFM#50:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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