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Renesas R5F52318BDNE#20
- Part No.:
- R5F52318BDNE#20
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-WFQFN Exposed Pad
- Datasheet:
-
R5F52318BDNE#20.pdf
- Description:
- IC MCU 32BIT 512KB FLASH 48HWQFN
- Quantity:
- Payment:
- Shipping:
Inventory:416
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Product details
Overview
R5F52318BDNE#20 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 to IEEE 754. 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 time), and capacitive touch sensing unit supporting up to 24 self-capacitance keys - deployed in industrial HMI and smart sensor edge nodes.
For engineers reviewing the R5F52318BDNE#20 datasheet, R5F52318BDNE#20 pinout, R5F52318BDNE#20 application, or R5F52318BDNE#20 equivalent, key selection considerations include its 48-pin HWQFN (7 × 7 mm, 0.5 mm pitch) package, −40 to +85°C temperature grade, absence of SDHI and CAN modules per package-specific configuration, and support for TSIP-Lite encryption with AES-128/256.
Technical Context
The R5F52318BDNE#20 implements the RXv2 CPU core with Harvard architecture, 5-stage pipeline, and variable-length instructions enabling 88.56 DMIPS at 54 MHz. It integrates an IEEE 754-compliant single-precision FPU, 32-bit multiplier, and 32-bit divider with two-cycle minimum execution.
Its peripheral set includes four-channel DMAC, event link controller (ELC) for interrupt-free module triggering, and dual 16-bit timer units (MTU2a and TPUa) supporting PWM, input capture, and phase counting - all synchronized to configurable PCLK domains (up to 54 MHz for MTU2a and S12AD).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RXv2 32-bit CISC with 5-stage pipeline, 88.56 DMIPS @ 54 MHz |
| Max Operating Frequency | 54 MHz system clock (ICLK); enables real-time control loop execution ≤18.5 ns per instruction cycle |
| Memory | 512 KB flash (no-wait ≤32 MHz), 64 KB SRAM (no-wait @ 54 MHz), 8 KB data flash (1M erase cycles) |
| Analog Peripherals | 24-channel 12-bit S12ADE ADC (0.83 µs min conversion), 2-channel 12-bit R12DAA DAC, TEMPSA temperature sensor |
| Communication | USB 2.0 FS host/function/OTG (12 Mbps), 7× SCI, 1× I2C, 1× RSPI, 1× IrDA (SCI5), no CAN or SDHI per package mapping |
| Security & Timing | TSIP-Lite with AES-128/256, GCM/CBC/ECB modes; RTC with calendar mode, LPT running in software standby |
| Power & Environment | 1.8–5.5 V supply; −40 to +85°C operating range; three low-power modes including deep sleep |
Pinout & Package
Package: 48-pin HWQFN (PWQN0048KB-A), 7 × 7 mm body, 0.5 mm pitch, exposed thermal pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC, VSS | Power supply and ground | Dual 1.8–5.5 V supply pins; supports independent analog/digital domain decoupling |
| XTAL, EXTAL | Main clock oscillator interface | Connects to 1–20 MHz crystal; enables precise timing for USB and RTC via PLL synthesis |
| RTC_VDD, RTC_VSS | Battery backup domain power | Enables RTC operation during main power loss using external coin cell or capacitor |
| USB_DP, USB_DM | USB 2.0 differential data lines | Full-speed (12 Mbps) transceiver with internal termination; no external PHY required |
| CTSU_RX0–CTSU_RX23 | Capacitive touch sense inputs | 24 dedicated channels for self-capacitance key scanning; supports noise-immune delta-sigma measurement |
| AD00–AD23 | Analog input channels | 24-pin-mapped A/D inputs; each supports programmable sampling time and disconnection detection |
| P00–P15, P20–P27, P30–P37 | General-purpose I/O | 43 GPIOs total; 5-V tolerant, open-drain capable, with MPC-configurable alternate functions |
Key Features
| Feature | Design Value |
|---|---|
| Floating-point unit (FPU) | IEEE 754-compliant 32-bit single-precision arithmetic accelerates motor control and sensor fusion math |
| Event Link Controller (ELC) | Direct hardware-triggered peripheral operation (e.g., timer-triggered ADC start) without CPU intervention or ISR latency |
| Capacitive Touch Sensing Unit (CTSU) | Self-capacitance mode supports 24 independent touch keys with built-in noise cancellation and auto-calibration |
| Trusted Secure IP (TSIP-Lite) | AES-128/256 encryption engine with true random number generator and key protection prevents firmware cloning and data exfiltration |
| Low-power timer (LPT) | 16-bit counter running on sub-clock or IWDT oscillator during software standby enables wake-up every 32.768 ms without full MCU restart |
Applications
| Industrial HMI Panel | Smart Sensor Node |
|---|---|
Use Scenario: Touch-enabled local control panel for HVAC or PLC interface with real-time status display and parameter adjustment. IC Role / Device Role / Timing Role: Main application processor executing GUI logic, managing USB CDC virtual COM for configuration, and scanning 24 capacitive keys. Use Value: Integrated CTSU eliminates external touch controller; 54 MHz RXv2 core ensures <10 ms UI response; TSIP-Lite secures firmware updates over USB. |
Use Scenario: Battery-powered environmental sensor aggregating temperature, humidity, and vibration data for predictive maintenance. IC Role / Device Role / Timing Role: System-on-chip managing sensor ADC reads, local FFT processing via FPU, encrypted BLE packet prep (via UART-to-BLE bridge), and ultra-low-power wake scheduling. Use Value: LPT + deep sleep mode extends battery life to >2 years; 12-bit ADC with per-channel sampling control improves signal fidelity; TSIP-Lite signs sensor payloads before transmission. |
| USB-C Enabled Power Tool | Medical Diagnostic Handset |
Use Scenario: Cordless power tool with USB-C port for firmware update, runtime diagnostics, and battery health reporting. IC Role / Device Role / Timing Role: USB device controller handling CDC/DFU class requests while concurrently monitoring motor current (via ADC), temperature (TEMPSA), and battery voltage. Use Value: On-chip USB transceiver eliminates external PHY; 54 MHz core processes real-time torque limiting; internal voltage detection (LVD) triggers safe shutdown at 3.0 V. |
Use Scenario: Portable diagnostic handset performing ECG signal conditioning, analog front-end calibration, and secure patient data logging. IC Role / Device Role / Timing Role: Precision analog hub acquiring 12-bit ECG waveforms, applying digital filtering (FPU-accelerated), storing encrypted logs to internal flash, and displaying results via SPI-driven OLED. Use Value: 0.83 µs ADC conversion captures high-frequency cardiac artifacts; TSIP-Lite meets IEC 62304 cryptographic requirements; RTC timestamps all clinical events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 32-bit MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F52318ADNE#U0 | No TSIP-Lite security engine; identical package, memory, and peripheral set otherwise | Unsecured firmware deployment; suitable for cost-sensitive consumer devices without data confidentiality needs | Select when cryptographic acceleration and key protection are unnecessary and BOM cost reduction is prioritized |
| R5F52317BDNE#U0 | 384 KB flash, 32 KB SRAM, same peripherals and package; lacks USB-dedicated PLL for 48 MHz clock generation | Lower memory footprint suffices for simpler control tasks; USB full-speed operation requires external clock source or reduced tolerance | Choose when application code size fits within 384 KB and USB timing margin allows non-PLL clock sourcing |
Compared with R5F52318BDNE#20, R5F52318ADNE#U0 removes hardware encryption but retains identical performance and I/O, while R5F52317BDNE#U0 reduces memory and omits USB PLL - making R5F52318BDNE#20 optimal for secure, USB-dependent edge nodes requiring full 512 KB flash headroom.
Availability
R5F52318BDNE#20 is available at Aetrix Electronics and suitable for industrial HMI, smart sensor nodes, USB-C power tools, and medical diagnostic handsets requiring stable component supply across extended product lifecycles.
Supply support for R5F52318BDNE#20 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 automotive, industrial, and IoT markets.
The RX231 Group - including R5F52318BDNE#20 - is engineered for real-time industrial control and secure human-machine interfaces, combining high-performance RXv2 cores with robust analog integration and IEC 60730 safety assist functions.
FAQ
What is the maximum operating frequency and CPU architecture of the R5F52318BDNE#20?
The R5F52318BDNE#20 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 single-precision FPU, 32-bit multiplier, and 32-bit divider - all confirmed in the official R01DS0261EJ0120 datasheet Rev.1.20.
Does the R5F52318BDNE#20 include CAN or SD host interface functionality?
No, the R5F52318BDNE#20 does not include CAN or SD host interface (SDHI) functionality. As documented in Table 1.2 of the R01DS0261EJ0120 datasheet, these modules are explicitly marked "Not supported" for the 48-pin HWQFN package (PWQN0048KB-A) used by R5F52318BDNE#20 - unlike 100-pin variants which enable both features.
What security features are implemented in the R5F52318BDNE#20?
The R5F52318BDNE#20 integrates TSIP-Lite (Trusted Secure IP Lite), providing AES-128/256 encryption with GCM/CBC/ECB modes, true random number generation, and hardware-enforced key protection. These features are confirmed in Section 1.1 of the R01DS0261EJ0120 datasheet and support IEC 60730 compliance for secure firmware updates and data integrity.
What is the package type and pin count of the R5F52318BDNE#20?
The R5F52318BDNE#20 uses a 48-pin HWQFN package designated PWQN0048KB-A: 7 × 7 mm body, 0.5 mm pitch, with exposed thermal pad. This is explicitly listed in Table 1.3 (D Version products) and Package column of the R01DS0261EJ0120 datasheet Rev.1.20, confirming mechanical and thermal compatibility for compact industrial PCB layouts.
How much flash, SRAM, and data flash memory does the R5F52318BDNE#20 provide?
The R5F52318BDNE#20 provides 512 KB of on-chip flash memory (with no-wait access up to 32 MHz), 64 KB of SRAM (no-wait at 54 MHz), and 8 KB of data flash rated for 1,000,000 program/erase cycles. These values are specified in Table 1.1 (Outline of Specifications) and verified in the "List of Products" table (R5F52318BDNE#U0 row) of the R01DS0261EJ0120 datasheet.
R5F52318BDNE#20 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-WFQFN Exposed Pad
- Series:
- RX231
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- 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:
- 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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F52318BDNE#20 FAQ
1.How can I place an order for R5F52318BDNE#20 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F52318BDNE#20 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 R5F52318BDNE#20 reliable?
The price and inventory of R5F52318BDNE#20 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F52318BDNE#20 is usually 5 days.
3.What payment methods are accepted for R5F52318BDNE#20?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F52318BDNE#20 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F52318BDNE#20?
R5F52318BDNE#20 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F52318BDNE#20 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 R5F52318BDNE#20?
For technical support, including R5F52318BDNE#20 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F52318BDNE#20 requirements.
6.How does Aetrix verify that R5F52318BDNE#20 is sourced from the original manufacturer or authorized distributors?
All R5F52318BDNE#20 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 R5F52318BDNE#20 meets industry standards.
7.What is the process for return or replacement of R5F52318BDNE#20?
All R5F52318BDNE#20 units undergo pre-shipment inspection (PSI). If there is an issue with R5F52318BDNE#20, 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 R5F52318BDNE#20 part is unused and in its original packaging.
Return procedure for R5F52318BDNE#20:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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