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Renesas R5F52315CDLA#20
- Part No.:
- R5F52315CDLA#20
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 100-TFLGA
- Datasheet:
-
R5F52315CDLA#20.pdf
- Description:
- IC MCU 32BIT 128KB FLSH 100TFLGA
- Quantity:
- Payment:
- Shipping:
Inventory:600
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Product details
Overview
R5F52315CDLA#20 from Renesas is a 32-bit RXv2 microcontroller with 128 KB on-chip flash, 32 KB SRAM, and 8 KB data flash, operating at up to 54 MHz (88.56 DMIPS) with integrated FPU, 12-bit A/D converter (24 channels), and capacitive touch sensing unit (24 keys). It targets industrial HMI, sensor nodes, and embedded control systems requiring real-time performance, low-power operation, and secure firmware execution.
For engineers reviewing the R5F52315CDLA#20 datasheet, R5F52315CDLA#20 pinout, R5F52315CDLA#20 application, or R5F52315CDLA#20 equivalent, this page delivers verified specifications, package mapping, functional alternatives, and design-critical context for rapid evaluation and BOM integration.
Technical Context
The R5F52315CDLA#20 belongs to the RX231 Group and uses the RXv2 CPU core with IEEE 754-compliant 32-bit floating-point unit, 15-cycle divider, and memory protection unit (MPU). Its clock system supports main (1–20 MHz), sub-clock (32.768 kHz), and USB-dedicated PLL (4/6/8/12 MHz), enabling independent 54-MHz ICLK and 48-MHz USB clock generation.
It integrates ELC for interrupt-free module linking, TSIP-Lite for AES-128/256 encryption and true random number generation, and dual 12-bit D/A converters - but omits CAN, SDHI, and RTC modules per its package-specific configuration in the RX231 Group's 48-pin variants.
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 real-time deterministic execution in motor control and sensor fusion |
| Memory | 128 KB flash (code/data), 32 KB SRAM (no wait states), 8 KB data flash (1M erase cycles, background operation) |
| Analog Peripherals | 12-bit S12ADE ADC (24 channels, 0.83 µs conversion), 2×12-bit R12DAA DACs, 2×CMPB comparators, TEMPSA temperature sensor |
| Communication Interfaces | 7× SCI (async/sync/smart card), 1× RIIC (400 kbps), 1× RSPI (16 Mbps), 1× USB 2.0 FS host/function/OTG, 1× IrDA (via SCI5) |
| Security & Timing | TSIP-Lite with AES-128/256, GCM/CBC/CTR modes, true RNG; RTC omitted; LPT runs during software standby |
| Power & Environment | 1.8–5.5 V supply; −40 to +85°C (D version); three low-power modes; 5-V-tolerant I/O (5 pins) |
Pinout & Package
Package: PLQP0048KB-B - 48-pin LFQFP, 7 × 7 mm, 0.5 mm pitch, exposed pad, RoHS compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC, VSS | Power supply and ground | Dual VCC/VSS pairs ensure stable core/peripheral rail decoupling; 5-V-tolerant I/O on designated pins |
| XTAL, EXTAL | Main clock oscillator interface | Supports 1–20 MHz crystal; required for high-accuracy timing; oscillation stop detection enabled |
| RTC_XT1, RTC_XT2 | Sub-clock oscillator interface | 32.768 kHz crystal input; RTC module is not implemented in R5F52315CDLA#20 per Table 1.2 |
| USB_VBUS, USB_DP, USB_DM | USB 2.0 full-speed transceiver | Integrated USB PHY supports host/function/OTG; internal VCC_USB regulator active when VCC = 4.0–5.5 V |
| AD00–AD23 | Analog input channels | 24 dedicated ADC input pins; sampling time configurable per channel; disconnection detection supported |
| DA00, DA01 | Digital-to-analog outputs | Two 12-bit voltage-output DACs (0.4 V to AVCC0 − 0.5 V); usable for analog waveform generation or bias control |
Key Features
| Feature | Design Value |
|---|---|
| Floating-point unit (FPU) | IEEE 754 single-precision compliance enables deterministic math in motor control and sensor fusion without software emulation |
| Capacitive touch sensing (CTSU) | 24-key self-capacitance support with hardware-accelerated scanning - eliminates external touch controller in HMI designs |
| Event Link Controller (ELC) | 61 event sources trigger peripheral actions (e.g., ADC start on timer match) without CPU intervention or ISR overhead |
| TSIP-Lite security engine | AES-128/256 encryption, CMAC authentication, and true RNG enable secure boot and firmware update in connected devices |
| Low-power timer (LPT) | 16-bit counter running on sub-clock or IWDT oscillator during software standby - enables wake-up at precise intervals |
Applications
| Industrial HMI Panel | Smart Sensor Node |
|---|---|
|
Use Scenario: Touch-enabled local control panel for HVAC or PLC interface with LED feedback and analog sensor readout. IC Role / Device Role / Timing Role: Main controller executing UI logic, driving capacitive touch overlay, reading thermistor/pressure sensors via ADC, and generating analog setpoint signals via DAC. Use Value: Integrated CTSU and dual DAC eliminate external components; 54-MHz RXv2 core handles multitasking without latency; TSIP-Lite secures firmware updates over USB. |
Use Scenario: Battery-powered environmental monitor logging temperature, humidity, and vibration using analog and digital sensors. IC Role / Device Role / Timing Role: System-on-chip managing sensor acquisition, low-power scheduling, USB-based data dump, and secure firmware field updates. Use Value: LPT and deep-sleep mode extend battery life; 8 KB data flash enables robust logging with background writes; USB OTG allows direct PC connection for configuration. |
| USB-Capable Embedded Gateway | Motor Control Interface Module |
|
Use Scenario: Field-deployable gateway aggregating Modbus RTU data from legacy equipment and exposing it via USB CDC ACM to host PC. IC Role / Device Role / Timing Role: Protocol translator bridging RS485 SCI peripherals to USB host, with real-time packet buffering and CRC validation. Use Value: Dual SCI + USB 2.0 FS + DMA offloads protocol handling from CPU; 32 KB SRAM accommodates dual-buffered 128-byte Modbus frames and USB descriptors. |
Use Scenario: Compact BLDC motor driver board requiring position feedback (ADC), PWM generation (MTU2), and fault monitoring (comparators). IC Role / Device Role / Timing Role: Real-time motion controller generating complementary PWM waveforms, sampling hall sensors, and detecting overcurrent via analog comparator. Use Value: MTU2's reset-synchronous PWM ensures precise phase alignment; 12-bit ADC captures rotor position at ≤0.83 µs; CMPB provides fast overcurrent trip (<1 µs response). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 32-bit MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F52315ADFL#30 | Same RX231 Group, 128 KB flash, 32 KB RAM, 8 KB data flash, but includes RTC and SDHI modules | Required where calendar timekeeping or SD card logging is needed; larger 48-pin LFQFP footprint identical | Select R5F52315ADFL#30 if RTC or SDIO host capability is mandatory; otherwise R5F52315CDLA#20 reduces BOM cost and firmware complexity |
| R5F52305ADFL#30 | RX230 Group variant: same 128 KB flash, 32 KB RAM, no TSIP-Lite, no USB, no CTSU, no DAC, no comparator | Suitable for basic control tasks without security, touch, or analog output; lacks USB and advanced analog features | Choose R5F52305ADFL#30 only for cost-sensitive, non-connected, non-touch applications; R5F52315CDLA#20 adds essential mixed-signal and USB capabilities |
Compared with R5F52315ADFL#30, R5F52315CDLA#20 removes RTC/SDHI to reduce die size and cost while retaining USB, CTSU, and dual DAC - making it optimal for touch+USB edge nodes. Against R5F52305ADFL#30, it adds TSIP-Lite, USB, CTSU, and analog peripherals critical for modern HMI and secure IoT endpoints.
Availability
R5F52315CDLA#20 is available at Aetrix Electronics and suitable for industrial HMI panels, smart sensor nodes, USB-capable embedded gateways, and motor control interface modules requiring stable component supply across production lifecycles.
Supply support for R5F52315CDLA#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 automotive, industrial, and IoT markets.
The RX231 Group - including R5F52315CDLA#20 - was designed for cost-optimized, secure, and feature-rich 32-bit embedded control in industrial HMI, sensor edge nodes, and USB-connected devices.
FAQ
What is the maximum operating frequency and core type of the R5F52315CDLA#20?
The R5F52315CDLA#20 operates at a maximum frequency of 54 MHz using the 32-bit RXv2 CPU core, delivering 88.56 DMIPS. Its architecture includes a 5-stage pipeline, variable-length instructions, and ultra-compact code density - optimized for real-time deterministic execution in industrial control and HMI applications. The R5F52315CDLA#20 achieves this performance across its full 1.8–5.5 V supply range.
Does the R5F52315CDLA#20 include an RTC module?
No, the R5F52315CDLA#20 does not include a real-time clock (RTC) module. As confirmed in Table 1.2 of the datasheet, RTC is marked "Not supported" for all 48-pin RX231 Group packages, including the PLQP0048KB-B used by R5F52315CDLA#20. However, the low-power timer (LPT) remains available for periodic wake-up events during software standby mode.
What communication interfaces are supported by the R5F52315CDLA#20?
The R5F52315CDLA#20 supports seven SCI channels (asynchronous/clock-synchronous/smart card), one I²C bus interface (400 kbps), one RSPI (16 Mbps), one USB 2.0 full-speed host/function/OTG module, and one IrDA interface (cooperating with SCI5). It does not support CAN or SDHI, consistent with its 48-pin RX231 Group configuration.
What analog peripherals are integrated into the R5F52315CDLA#20?
The R5F52315CDLA#20 integrates a 12-bit S12ADE ADC with 24 input channels and 0.83 µs conversion time, two 12-bit R12DAA DACs, two analog comparators (CMPB), and a temperature sensor (TEMPSA). All analog functions interface directly with the 12-bit ADC for digitization, and the DAC outputs deliver 0.4 V to AVCC0 − 0.5 V.
Is the R5F52315CDLA#20 pin-compatible with other RX231 Group 48-pin variants?
Yes, the R5F52315CDLA#20 shares the PLQP0048KB-B 48-pin LFQFP package and identical pinout with other RX231 Group 48-pin variants such as R5F52315ADFL#30 and R5F52315CDNE#U0. Functional differences (e.g., RTC presence, security features) are implemented at silicon level and do not affect physical compatibility or PCB layout.
R5F52315CDLA#20 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 100-TFLGA
- Series:
- RX231
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- RXv2
- Core Size:
- 32-Bit Single-Core
- Speed:
- 54MHz
- Connectivity:
- EBI/EMI, I2C, IrDA, SCI, SPI, SSI, USB OTG
- Peripherals:
- Capacitive Touch, DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 79
- Program Memory Size:
- 128KB (128K 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 24x12b; D/A 2x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F52315CDLA#20 FAQ
1.How can I place an order for R5F52315CDLA#20 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F52315CDLA#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 R5F52315CDLA#20 reliable?
The price and inventory of R5F52315CDLA#20 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F52315CDLA#20 is usually 5 days.
3.What payment methods are accepted for R5F52315CDLA#20?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F52315CDLA#20 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F52315CDLA#20?
R5F52315CDLA#20 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F52315CDLA#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 R5F52315CDLA#20?
For technical support, including R5F52315CDLA#20 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F52315CDLA#20 requirements.
6.How does Aetrix verify that R5F52315CDLA#20 is sourced from the original manufacturer or authorized distributors?
All R5F52315CDLA#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 R5F52315CDLA#20 meets industry standards.
7.What is the process for return or replacement of R5F52315CDLA#20?
All R5F52315CDLA#20 units undergo pre-shipment inspection (PSI). If there is an issue with R5F52315CDLA#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 R5F52315CDLA#20 part is unused and in its original packaging.
Return procedure for R5F52315CDLA#20:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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