Renesas R5F52315CDND#20

Overview

R5F52315CDND#20 from Renesas is a 32-bit RXv2 microcontroller targeting industrial and consumer embedded systems requiring integrated USB, CAN, capacitive touch, and cryptographic security. It operates at up to 54 MHz (88.56 DMIPS), integrates 128 KB on-chip flash, 32 KB SRAM, 8 KB data flash, a 12-bit 24-channel ADC, dual 12-bit DACs, and TSIP-Lite AES-128/256 encryption engine.

For engineers reviewing the R5F52315CDND#20 datasheet, R5F52315CDND#20 pinout, R5F52315CDND#20 application, or R5F52315CDND#20 equivalent, this MCU delivers deterministic real-time control with FPU-assisted math, low-power RTC operation, ELC-driven event-triggered peripheral coordination, and IEC60730-compliant self-test functions for safety-critical firmware deployment.

Technical Context

The R5F52315CDND#20 implements the RXv2 CPU core with Harvard architecture, 5-stage pipeline, and variable-length instructions-enabling ultra-compact code density and single-cycle instruction execution at 54 MHz. It includes a single-precision IEEE 754 FPU, 32-bit multiplier, and hardware divider for deterministic floating-point and integer arithmetic in motor control and sensor fusion.

Its peripheral set is coordinated via the Event Link Controller (ELC), allowing timer-triggered ADC conversions, PWM updates, or DMA transfers without CPU intervention-even during deep sleep. The TSIP-Lite module provides hardware-accelerated AES-GCM/CBC/ECB, true random number generation, and key protection for secure boot and firmware update integrity.

Key Specifications

Pinout & Package

Packaged in a 64-pin HWQFN (PWQN0064KC-A) measuring 9 × 9 mm with 0.5 mm pitch, the R5F52315CDND#20 features 47 general-purpose I/O pins-including 5-V tolerant inputs, open-drain outputs, and configurable pull-ups-plus dedicated pins for USB D+/D−, CAN H/L, crystal oscillators, and debug (FINE interface).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 32-bit industrial MCU applications.

Compared with R5F52315CDND#20, R5F52315ADND#U0 adds CAN and SDHI at the expense of TSIP-Lite, while R5F52316CDND#U0 trades data flash, DACs, and security for doubled flash capacity-making each alternative optimal only when those specific trade-offs align with system-level requirements.

Availability

R5F52315CDND#20 is available at Aetrix Electronics and suitable for industrial HMI panels, smart energy meters, medical patient monitors, and home appliance control units requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for R5F52315CDND#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-of which R5F52315CDND#20 is a member-is designed for high-integration, safety-aware embedded applications demanding USB, CAN, capacitive touch, and hardware security in compact packages.

FAQ

What is the maximum operating frequency and performance rating of the R5F52315CDND#20?

The R5F52315CDND#20 operates at a maximum system clock frequency of 54 MHz, delivering 88.56 DMIPS of processing performance. Its RXv2 CPU core supports single-cycle instruction execution, a 32-bit hardware multiplier, and a single-precision IEEE 754 FPU-enabling deterministic real-time computation for motor control and sensor fusion tasks within the R5F52315CDND#20's thermal and power envelope.

Does the R5F52315CDND#20 include hardware cryptographic acceleration?

Yes, the R5F52315CDND#20 integrates TSIP-Lite, a hardware security module supporting AES-128 and AES-256 in ECB, CBC, GCM, and other modes, along with a true random number generator and secure key management. This enables fast, tamper-resistant secure boot and firmware authentication-critical for certified industrial and medical deployments using the R5F52315CDND#20.

Which communication interfaces are supported by the R5F52315CDND#20?

The R5F52315CDND#20 supports USB 2.0 full-speed/host/function/OTG, CAN 2.0B (1 Mbps), seven serial communication interfaces (SCI), I²C, RSPI, serial sound interface (SSI), and SD host interface (SDHI). Notably, it lacks CAN and SDHI in the 'C' variant-confirmed in Table 1.2 of the datasheet-so these interfaces are not present in the R5F52315CDND#20.

What analog peripherals are integrated into the R5F52315CDND#20?

The R5F52315CDND#20 integrates a 12-bit 24-channel ADC with 0.83 µs minimum conversion time, two independent 12-bit DAC channels, two analog comparator units (four total channels), and an on-die temperature sensor. All analog blocks are calibrated and supported by self-diagnostic functions required for IEC60730 compliance-key capabilities confirmed for the R5F52315CDND#20 in the device specification tables.

What package type and pin count does the R5F52315CDND#20 use?

The R5F52315CDND#20 is supplied in a 64-pin HWQFN package (PWQN0064KC-A), measuring 9 × 9 mm with 0.5 mm pitch. It provides 47 general-purpose I/O pins, including 5-V tolerant inputs and open-drain outputs, alongside dedicated pins for USB, crystal oscillators, reset, and the FINE debug interface-matching the mechanical and electrical specifications defined for this orderable part in Renesas documentation.