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Renesas R5F52316CDND#20
- Part No.:
- R5F52316CDND#20
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-WFQFN Exposed Pad
- Datasheet:
-
R5F52316CDND#20.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 64HWQFN
- Quantity:
- Payment:
- Shipping:
Inventory:520
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Product details
Overview
R5F52316CDND#20 from Renesas is a 32-bit RXv2 core microcontroller operating at up to 54 MHz (88.56 DMIPS), featuring 256 KB on-chip flash, 32 KB SRAM, 12-bit A/D converter (24 channels), USB 2.0 full-speed host/function/OTG, and capacitive touch sensing unit - deployed in industrial HMI and smart sensor edge nodes requiring real-time control and secure connectivity.
For engineers reviewing the R5F52316CDND#20 datasheet, R5F52316CDND#20 pinout, R5F52316CDND#20 application, or R5F52316CDND#20 equivalent, key selection considerations include its 64-pin HWQFN (PWQN0064KC-A) package, absence of CAN and SDHI modules, D-version −40 to +85°C rating, and TSIP-Lite encryption support for firmware integrity.
Technical Context
The R5F52316CDND#20 belongs to the RX231 Group and implements the RXv2 CPU core with IEEE 754-compliant 32-bit FPU, 32-bit multiply-accumulate, and memory protection unit (MPU). It supports little-endian data arrangement and executes instructions in one cycle at 54 MHz under optimal conditions.
Its clock system integrates main, sub, and on-chip oscillators with PLL and USB-dedicated PLL; system clock (ICLK) runs at 54 MHz, while peripheral clocks (PCLKA–PCLKD) are independently configurable - enabling precise timing partitioning for ADC, timers, and communication peripherals.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RXv2 32-bit CISC Harvard architecture with 5-stage pipeline, 88.56 DMIPS @ 54 MHz |
| Max Operating Frequency | 54 MHz system clock (ICLK); enables deterministic real-time response in motor control loops |
| Memory | 256 KB flash (no-wait up to 32 MHz), 32 KB SRAM (no-wait @ 54 MHz), 8 KB data flash (1M erase cycles) |
| Analog Peripherals | 12-bit S12ADE A/D converter (24 channels, 0.83 µs conversion), 2-channel 12-bit R12DAA D/A |
| Communication Interfaces | USB 2.0 full-speed host/function/OTG (12 Mbps), 7× SCI, 1× I²C, 1× RSPI, 1× IrDA (via SCI5), 1× SSI |
| Security & Safety | TSIP-Lite with AES-128/256 (GCM/CBC/ECB), true random number generator, IEC60730 self-test assistance |
| Package & Temp Range | PWQN0064KC-A: 64-pin HWQFN, 9 × 9 mm, 0.5 mm pitch; operating temperature −40 to +85°C (D version) |
Pinout & Package
Packaged in a 64-pin HWQFN (PWQN0064KC-A), the R5F52316CDND#20 features exposed thermal pad, 0.5 mm pitch, and 9 × 9 mm footprint optimized for compact industrial PCB layouts with high thermal efficiency.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC, VSS | Power supply and ground | Core and I/O supply pins; supports single 1.8–5.5 V operation with internal regulators |
| XTAL, EXTAL | Main clock oscillator terminals | Accepts 1–20 MHz crystal; enables precise timing for USB and RTC synchronization |
| USB_VBUS, USB_DP, USB_DM | USB transceiver interface | Full-speed USB 2.0 physical layer; VBUS detection enables OTG role switching |
| AD0–AD23 | Analog input channels | 24 dedicated A/D input pins; each configurable with independent sampling time for sensor signal conditioning |
| CTSU0–CTSU23 | Capacitive touch sensing inputs | Supports self-capacitance mode (24 keys) or mutual-capacitance matrix (up to 144 keys) without external components |
| SCI0_TXD, SCI0_RXD | Asynchronous serial interface | Hardware UART channel with baud rate generator; used for debug console or host MCU communication |
Key Features
| Feature | Design Value |
|---|---|
| Floating-point unit (FPU) | IEEE 754-compliant 32-bit single-precision arithmetic accelerates motor control algorithms and sensor fusion |
| Event Link Controller (ELC) | Direct hardware-triggered peripheral chaining (e.g., timer → ADC start) eliminates CPU overhead in low-power modes |
| Capacitive Touch Sensing Unit (CTSU) | Self- and mutual-capacitance support enables robust touch UI on metal-overlaid panels without shield layers |
| Low-power timer (LPT) | 16-bit counter running on sub-clock (32.768 kHz) during software standby enables wake-up every 2–65 sec without RTC overhead |
| TSIP-Lite encryption engine | Hardware-accelerated AES-128/256 with GCM mode provides authenticated encryption for firmware updates and secure boot |
Applications
| Industrial HMI Panel | Smart Sensor Node |
|---|---|
|
Use Scenario: Touch-enabled local control panel for HVAC or PLC interface with LED indicators and status feedback. IC Role / Device Role / Timing Role: Main controller executing real-time UI rendering, capacitive touch decoding, and RS485/SCI-based fieldbus communication. Use Value: Integrated CTSU eliminates external touch controller IC; 54 MHz CPU handles graphics overlay and sensor polling concurrently. |
Use Scenario: Battery-powered environmental monitor measuring temperature, humidity, and air quality with wireless upload. IC Role / Device Role / Timing Role: System-on-chip managing analog sensor acquisition (A/D), local data processing (FPU), and USB-based configuration/firmware update. Use Value: LPT + deep sleep mode achieves <10 µA standby current; on-chip TSIP-Lite secures OTA update payloads. |
| USB-Capable Test Instrument | Secure Firmware Gateway |
|
Use Scenario: Portable calibration tool connecting to PC via USB for waveform generation and measurement logging. IC Role / Device Role / Timing Role: USB device controller with CDC ACM class implementation; generates precise PWM waveforms using MTU2a timers. Use Value: USB-dedicated PLL ensures 48 MHz clock stability for isochronous transfers; 12-bit D/A outputs calibrated reference signals. |
Use Scenario: Edge gateway authenticating and decrypting firmware images before loading into external flash or secure enclave. IC Role / Device Role / Timing Role: Secure boot loader verifying digital signatures using TSIP-Lite SHA-256 and AES-GCM decryption. Use Value: Hardware key isolation prevents extraction; true RNG seeds cryptographic operations for anti-cloning resilience. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 32-bit MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F52316ADND#U0 | Same package and pinout; includes 8 KB data flash (R5F52316CDND#20 omits it) | Required for field-upgradable parameter storage or bootloader metadata persistence | Select R5F52316ADND#U0 when background operation (BGO) for data flash writes is essential |
| R5F52317ADND#U0 | 384 KB flash, 32 KB RAM, same peripherals; no TSIP-Lite or CTSU | Suitable for cost-sensitive control-only applications without touch or crypto needs | Choose R5F52317ADND#U0 when larger code space is needed but security/touch features are unused |
Compared with R5F52316CDND#20, R5F52316ADND#U0 adds data flash endurance for firmware parameter retention, while R5F52317ADND#U0 trades TSIP-Lite and CTSU for higher flash capacity - making each optimal for distinct security, storage, and UI requirements.
Availability
R5F52316CDND#20 is available at Aetrix Electronics and suitable for industrial HMI, smart sensor nodes, USB test instrumentation, and secure firmware gateways requiring stable component supply across extended product lifecycles.
Supply support for R5F52316CDND#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, power, and SoC solutions for industrial, automotive, and IoT markets.
The RX231 Group, including R5F52316CDND#20, is designed for cost-effective, secure, and low-power embedded applications demanding real-time performance, rich analog integration, and USB connectivity.
FAQ
What is the maximum operating frequency and CPU performance of the R5F52316CDND#20?
The R5F52316CDND#20 operates at a maximum system clock frequency of 54 MHz, delivering 88.56 DMIPS. Its RXv2 core includes a 32-bit FPU compliant with IEEE 754, supporting single-precision floating-point operations critical for motor control and sensor fusion algorithms within the R5F52316CDND#20's real-time execution environment.
Does the R5F52316CDND#20 support CAN or SD host interface functionality?
No, the R5F52316CDND#20 does not include CAN or SD host interface (SDHI) modules. Per Table 1.2 in the datasheet, these peripherals are excluded from all 64-pin and 48-pin RX231 packages - including the PWQN0064KC-A package used by R5F52316CDND#20. Only 100-pin RX231 variants support CAN and SDHI.
What package type and pin count does the R5F52316CDND#20 use?
The R5F52316CDND#20 uses the PWQN0064KC-A package: a 64-pin HWQFN with 9 × 9 mm body size, 0.5 mm pitch, and exposed thermal pad. This package is confirmed in Table 1.3 (D Version product list) and supports reflow soldering for high-volume industrial PCB assembly of the R5F52316CDND#20.
Is the R5F52316CDND#20 qualified for automotive or extended temperature operation?
No, the R5F52316CDND#20 is rated for −40 to +85°C (D version), not the −40 to +105°C (G version) required for extended industrial or automotive under-hood applications. Its qualification aligns with general industrial and consumer equipment per the datasheet's Applications section - confirming R5F52316CDND#20 is intended for controlled-environment deployments.
Does the R5F52316CDND#20 include hardware encryption capabilities?
Yes, the R5F52316CDND#20 integrates TSIP-Lite - a trusted secure IP module supporting AES-128/256 in ECB, CBC, GCM, and other modes, plus SHA-256 hashing and a true random number generator. These features enable secure boot, encrypted firmware updates, and key management directly within the R5F52316CDND#20 without external security ICs.
R5F52316CDND#20 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-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:
- 43
- Program Memory Size:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 32K 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:
R5F52316CDND#20 FAQ
1.How can I place an order for R5F52316CDND#20 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F52316CDND#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 R5F52316CDND#20 reliable?
The price and inventory of R5F52316CDND#20 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F52316CDND#20 is usually 5 days.
3.What payment methods are accepted for R5F52316CDND#20?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F52316CDND#20 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F52316CDND#20?
R5F52316CDND#20 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F52316CDND#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 R5F52316CDND#20?
For technical support, including R5F52316CDND#20 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F52316CDND#20 requirements.
6.How does Aetrix verify that R5F52316CDND#20 is sourced from the original manufacturer or authorized distributors?
All R5F52316CDND#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 R5F52316CDND#20 meets industry standards.
7.What is the process for return or replacement of R5F52316CDND#20?
All R5F52316CDND#20 units undergo pre-shipment inspection (PSI). If there is an issue with R5F52316CDND#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 R5F52316CDND#20 part is unused and in its original packaging.
Return procedure for R5F52316CDND#20:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F52316CDND#20 Tags
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