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Renesas R5F52318AGND#40
- Part No.:
- R5F52318AGND#40
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-WFQFN Exposed Pad
- Datasheet:
-
R5F52318AGND#40.pdf
- Description:
- IC MCU 32BIT 512KB FLASH 64WFQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,772
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Product details
Overview
R5F52318AGND#40 from Renesas is a 32-bit RXv2 microcontroller with 54 MHz max operating frequency, 512 KB on-chip flash memory, 64 KB SRAM, and integrated FPU compliant with IEEE 754 single-precision floating-point standard. It features USB 2.0 full-speed host/function/OTG, CAN 2.0B (ISO 11898-1), 24-channel 12-bit A/D converter (0.83 µs conversion time), and capacitive touch sensing unit supporting up to 24 self-capacitance keys - deployed in industrial HMI and smart sensor gateway applications.
For engineers reviewing the R5F52318AGND#40 datasheet, R5F52318AGND#40 pinout, R5F52318AGND#40 application, or R5F52318AGND#40 equivalent, key selection considerations include its 64-pin HWQFN (PWQN0064KC-A) package, −40 to +105°C temperature grade (G version), SD host interface support, and absence of external bus interface - critical for compact, thermally demanding embedded control designs requiring USB-CAN bridging and analog signal acquisition.
Technical Context
The R5F52318AGND#40 implements the RXv2 CPU core with 5-stage CISC Harvard pipeline, variable-length instructions, and hardware divider completing 32-bit ÷ 32-bit in two cycles. Its clock system integrates PLL, USB-dedicated PLL (4/6/8/12 MHz), sub-clock oscillator (32.768 kHz), and clock frequency accuracy measurement circuit (CAC) for RTC and system timing validation.
Peripheral integration includes ELC for interrupt-free module linking, DTC for chain-transfer DMA, TSIP-Lite encryption engine (AES-128/256, GCM/CBC/ECB), and dual 12-bit D/A converters (0.4–AVCC0−0.5 V output range). The device supports IEC 60730 safety functions including RAM test assistance, A/D self-diagnostic, and IWDT disconnection detection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RXv2 32-bit CPU with 5-stage pipeline, 88.56 DMIPS @ 54 MHz |
| Max Operating Frequency | 54 MHz system clock; 48 MHz USB clock via dedicated PLL |
| Memory | 512 KB flash (no-wait ≤32 MHz), 64 KB SRAM (no-wait @ 54 MHz), 8 KB data flash (1M erase/program cycles) |
| Analog Peripherals | 24-channel 12-bit S12ADE A/D (0.83 µs min conversion), 2-channel 12-bit R12DAA D/A, 2-unit CMPBa comparator (4 channels total) |
| Communication Interfaces | USB 2.0 FS/LS host/function/OTG, CAN 2.0B (1 Mbps), 7× SCI, 1× RIIC, 1× RSPI, 1× SSI, 1× SDHI (1-/4-bit SD/SDIO/eMMC) |
| Security & Safety | TSIP-Lite AES-128/256 (GCM/CBC/ECB), true RNG, IEC 60730 self-test support (A/D, IWDT, RAM, CAC) |
| Power & Temp | 1.8–5.5 V supply; −40 to +105°C operating range (G-grade); three low-power modes including software standby with LPT operation |
Pinout & Package
Package: PWQN0064KC-A - 64-pin HWQFN, 9 × 9 mm body, 0.5 mm pitch, exposed thermal pad, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC, VSS | Power supply and ground | Dual 3.3 V supply domains (VCC/VSS for digital core, AVCC/AVSS for analog); 5-V tolerant I/O pins enable direct interfacing with legacy logic |
| XTAL/EXTAL | Main clock oscillator terminals | Supports 1–20 MHz crystal; enables precise timing for USB and real-time control loops |
| USB_VBUS, USB_DP, USB_DM | USB transceiver interface | Full-speed USB 2.0 physical layer with internal VBUS sensing; no external transceiver required |
| TXD0/RXD0, TXD1/RXD1 | SCI0/SCI1 serial I/O | Asynchronous/clock-synchronous communication with baud rate generator; supports LIN and IrDA (via SCI5) |
| CTX0–CTX23 | Capacitive touch sensing inputs | Direct connection to CTSU electrode pins; supports self-capacitance mode for up to 24 independent touch keys |
| AD00–AD23 | Analog input channels | 24 dedicated A/D input pins with per-channel sampling time programmability and analog disconnection detection |
| DA0, DA1 | Digital-to-analog outputs | Two buffered 12-bit voltage outputs (0.4–AVCC0−0.5 V) for precision analog control signals |
| CAN_TX, CAN_RX | CAN bus differential interface | Direct connection to external CAN transceiver; supports ISO 11898-1 at up to 1 Mbps with message filtering and FIFO buffering |
Key Features
| Feature | Design Value |
|---|---|
| Floating-point unit (FPU) | IEEE 754-compliant 32-bit single-precision arithmetic enabling real-time motor control and sensor fusion without software emulation overhead |
| Event Link Controller (ELC) | 61 event sources trigger peripheral operations (e.g., timer-triggered A/D conversion) without CPU intervention, reducing latency and power in sleep states |
| TSIP-Lite encryption engine | Hardware-accelerated AES-128/256 with GCM mode and secure key management prevents firmware tampering and ensures secure OTA updates |
| Capacitive touch sensing unit (CTSU) | Self-capacitance configuration supports 24-key HMI with noise immunity and automatic baseline calibration - no external RC components required |
| SD host interface (SDHI) | 1-/4-bit SD/SDIO/eMMC support with CRC7/CRC16 error checking and DMA-linked buffer transfers for local data logging and firmware storage |
| IEC 60730 safety assist | Integrated diagnostic functions for A/D converter, IWDT, clock accuracy, and RAM reduce BOM cost and certification effort for Class B appliance control |
Applications
| Industrial HMI Panel | Smart Sensor Gateway |
|---|---|
Use Scenario: Touch-enabled control panel for PLC-connected machinery with real-time status display and parameter adjustment. IC Role / Device Role / Timing Role: Main application MCU executing UI rendering, CAN bus communication with field devices, and USB host for configuration tool connectivity. Use Value: Integrated CTSU eliminates external touch controller; 54 MHz RXv2 core handles multitasking and floating-point calculations for dynamic UI scaling and alarm math. |
Use Scenario: Edge node aggregating temperature, pressure, and vibration data from multiple sensors, then forwarding via USB or CAN to central SCADA. IC Role / Device Role / Timing Role: Data acquisition and protocol translation hub with simultaneous A/D sampling, SD card logging, and dual-interface (USB+CAN) upstream communication. Use Value: 24-channel A/D with 0.83 µs conversion enables high-fidelity multi-sensor sampling; SDHI and USB OTG allow local storage and field technician reprogramming without network dependency. |
| Thermal Management Controller | Appliance Safety Module |
Use Scenario: HVAC control unit regulating compressor speed, fan RPM, and refrigerant valve position based on ambient and coil temperature feedback. IC Role / Device Role / Timing Role: Real-time control processor managing PWM outputs to inverters, reading analog sensor inputs, and executing PID loops with FPU acceleration. Use Value: On-chip FPU delivers deterministic 54 MHz PID execution; 12-bit D/A outputs drive analog actuators directly; −40 to +105°C rating ensures reliability in hot equipment enclosures. |
Use Scenario: Safety-critical subsystem in commercial oven verifying door interlock, temperature limit, and heating element integrity before enabling power. IC Role / Device Role / Timing Role: Dedicated safety monitor performing periodic self-tests (RAM, A/D, clock, IWDT) and enforcing fail-safe shutdown via hardware watchdog escalation. Use Value: IEC 60730-compliant diagnostics reduce external safety IC count; TSIP-Lite prevents unauthorized firmware modification; dual IWDT and WDT provide redundant fault coverage. |
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 |
|---|---|---|---|
| R5F52318BGND#U0 | Same package and peripherals, but with enhanced security function enabled (TSIP-Lite fully activated) | Required where cryptographic key provisioning and secure boot are mandatory (e.g., medical or regulated industrial devices) | Select R5F52318BGND#U0 when AES-GCM authenticated encryption and secure key lifecycle management are needed beyond basic TSIP-Lite features |
| R5F52317AGND#U0 | 384 KB flash, 32 KB SRAM, same 64-pin HWQFN package and peripheral set; lacks SDHI and CAN modules | Suitable for cost-sensitive HMI or sensor nodes without local storage or CAN bus requirements | Choose R5F52317AGND#U0 when application firmware fits within 384 KB flash and SD/CAN interfaces are unnecessary - reduces BOM cost without sacrificing core compute or analog capability |
Compared with R5F52318AGND#40, R5F52318BGND#U0 adds production-ready security activation while R5F52317AGND#U0 trades flash size and interface count for lower unit cost - both retain identical thermal grade, package, and real-time peripheral timing behavior.
Availability
R5F52318AGND#40 is available at Aetrix Electronics and suitable for industrial HMI panels, smart sensor gateways, thermal management controllers, and appliance safety modules requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R5F52318AGND#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 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 R5F52318AGND#40 belongs - was designed for high-integration, safety-aware embedded control in thermally demanding environments, emphasizing real-time performance, analog precision, and functional safety compliance.
FAQ
What is the maximum operating frequency and core architecture of the R5F52318AGND#40?
The R5F52318AGND#40 operates at a maximum frequency of 54 MHz using the 32-bit RXv2 CPU core with 5-stage pipeline, variable-length instruction set, and hardware floating-point unit compliant with IEEE 754. Its 88.56 DMIPS performance enables real-time processing for industrial control and sensor fusion tasks without software emulation overhead.
Does the R5F52318AGND#40 support USB and CAN interfaces simultaneously?
Yes, the R5F52318AGND#40 integrates both USB 2.0 full-speed host/function/OTG and a single-channel CAN 2.0B module compliant with ISO 11898-1. These operate independently - USB uses its dedicated PLL and CAN uses the main PLL - allowing concurrent use in gateway applications such as USB-to-CAN bridge devices or field-configurable controllers.
What is the package type and thermal rating of the R5F52318AGND#40?
The R5F52318AGND#40 uses the PWQN0064KC-A package: a 64-pin HWQFN measuring 9 × 9 mm with 0.5 mm pitch and an exposed thermal pad. It is rated for −40 to +105°C operation (G-grade), making it suitable for industrial environments where ambient temperatures exceed standard commercial limits.
How many analog-to-digital and digital-to-analog channels does the R5F52318AGND#40 include?
The R5F52318AGND#40 includes a 24-channel 12-bit A/D converter (S12ADE) with minimum conversion time of 0.83 µs and per-channel sampling time programmability. It also provides two independent 12-bit D/A converter channels (R12DAA) with output voltage range of 0.4 V to AVCC0 − 0.5 V, supporting precision analog control and calibration functions.
Is the R5F52318AGND#40 qualified for functional safety standards like IEC 60730?
Yes, the R5F52318AGND#40 includes built-in IEC 60730 compliance assistance features: A/D self-diagnostic, IWDT disconnection detection, clock frequency accuracy measurement (CAC), RAM test support via DOC, and voltage monitoring circuits. These reduce external component count and simplify certification for Class B appliance control applications.
R5F52318AGND#40 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
- Speed:
- 54MHz
- Connectivity:
- CANbus, I2C, IrDA, SCI, SPI, SSI, UART/USART, USB OTG
- Peripherals:
- 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:
R5F52318AGND#40 FAQ
1.How can I place an order for R5F52318AGND#40 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F52318AGND#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 R5F52318AGND#40 reliable?
The price and inventory of R5F52318AGND#40 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F52318AGND#40 is usually 5 days.
3.What payment methods are accepted for R5F52318AGND#40?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F52318AGND#40 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F52318AGND#40?
R5F52318AGND#40 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F52318AGND#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 R5F52318AGND#40?
For technical support, including R5F52318AGND#40 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F52318AGND#40 requirements.
6.How does Aetrix verify that R5F52318AGND#40 is sourced from the original manufacturer or authorized distributors?
All R5F52318AGND#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 R5F52318AGND#40 meets industry standards.
7.What is the process for return or replacement of R5F52318AGND#40?
All R5F52318AGND#40 units undergo pre-shipment inspection (PSI). If there is an issue with R5F52318AGND#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 R5F52318AGND#40 part is unused and in its original packaging.
Return procedure for R5F52318AGND#40:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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