Renesas R5F52108CDFF#V0

Overview

R5F52108CDFF#V0 from Renesas Electronics is a 32-bit RX CPU-based microcontroller operating at up to 50 MHz (78 DMIPS), featuring 512 KB on-chip flash, 64 KB SRAM, 8 KB data flash, 12-bit A/D converter (16 channels), 10-bit D/A converter (2 channels), RTC, ELC, MPC, and IEC60730-compliant safety functions - deployed in industrial control panels requiring deterministic real-time response and low-power operation.

For engineers reviewing the R5F52108CDFF#V0 datasheet, R5F52108CDFF#V0 pinout, R5F52108CDFF#V0 application, or R5F52108CDFF#V0 equivalent, key selection criteria include its 80-pin LQFP-0.65mm package with 5-V-tolerant I/O, deep software standby mode with RTC wake-up, and support for up to 15 communication channels including SCI, I²C, and RSPI.

Technical Context

The R5F52108CDFF#V0 implements a CISC Harvard architecture with 5-stage pipeline, variable-length instructions, and 64-bit accumulator for single-cycle 32×32-bit multiplication. Its clock system integrates PLL, sub-clock oscillator (32.768 kHz), and IWDT-dedicated 125-kHz oscillator, enabling independent domain clocks (ICLK up to 50 MHz, PCLK up to 32 MHz).

It supports four low-power modes - sleep, all-module clock stop, software standby, and deep software standby - with RTC retention and event-triggered wake-up via ELC. Peripheral modules include MTU2 (6-channel 16-bit timer), TPU (6-channel 16-bit timer), TMR (4-channel 8-bit timer), and CMT (4-channel 16-bit compare match timer), all configurable for PWM, input capture, and A/D trigger generation.

Key Specifications

Pinout & Package

Package: PLQP0080JA-A - 80-pin LQFP, 14 × 14 mm body, 0.65 mm pitch, RoHS-compliant, lead-free finish.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar microcontroller applications.

Compared with R5F52108ADFP#V0, the R5F52108CDFF#V0 adds RTC and TPU in an 80-pin 0.65-mm-pitch package ideal for space-constrained industrial controllers; versus R5F52108BDFB#30, it trades flash/RAM capacity and pin count for compactness and lower BOM cost - making it optimal for cost-sensitive, RTC-dependent edge devices.

Availability

R5F52108CDFF#V0 is available at Aetrix Electronics and suitable for industrial HMI panels, smart energy meters, PLC I/O modules, and medical infusion pump controllers requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant manufacturing.

Supply support for R5F52108CDFF#V0 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 RX210 Group, including the R5F52108CDFF#V0, was designed for cost-sensitive industrial control applications demanding real-time performance, functional safety (IEC60730), and ultra-low-power operation across extended temperature ranges.

FAQ

What is the maximum operating frequency and core performance of the R5F52108CDFF#V0?

The R5F52108CDFF#V0 operates at a maximum frequency of 50 MHz and delivers 78 DMIPS of processing performance using its 32-bit RX CPU core. This enables deterministic execution of real-time control loops and protocol stacks. Its 5-stage pipeline, 64-bit accumulator, and single-cycle 32×32-bit multiply unit make the R5F52108CDFF#V0 well-suited for motor control and sensor fusion tasks where computational throughput matters.

Does the R5F52108CDFF#V0 support real-time clock functionality with wake-up from low-power mode?

Yes, the R5F52108CDFF#V0 integrates a dedicated real-time clock (RTC) driven by a 32.768 kHz sub-clock oscillator. It supports calendar/time mode, alarm and periodic interrupts, and time-capture on external events. Critically, the RTC remains fully operational during deep software standby mode - allowing the R5F52108CDFF#V0 to maintain accurate timekeeping and wake the system on schedule or external trigger without consuming full active power.

What are the analog capabilities of the R5F52108CDFF#V0, and how are they applied in sensing systems?

The R5F52108CDFF#V0 features a 12-bit A/D converter with 16 input channels, 1 μs conversion time, and three-channel synchronized sampling - essential for simultaneous current/voltage/temperature acquisition in power supplies or motor drives. It also includes two 10-bit D/A channels for analog setpoint generation or calibration references. These analog resources, combined with self-diagnostic and disconnection detection functions, make the R5F52108CDFF#V0 suitable for IEC60730-compliant sensing applications where measurement integrity is critical.

How does the Event Link Controller (ELC) enhance system efficiency in the R5F52108CDFF#V0?

The Event Link Controller (ELC) in the R5F52108CDFF#V0 enables direct hardware-level triggering between 59 internal and external event sources and peripheral modules - such as starting an A/D conversion upon a timer match or toggling a GPIO on a UART receive event. This eliminates CPU intervention and interrupt latency, reducing jitter and freeing the R5F52108CDFF#V0 core for higher-level tasks. In applications like closed-loop control or high-speed data logging, ELC improves determinism and throughput without increasing firmware complexity.

What safety and reliability features does the R5F52108CDFF#V0 provide for industrial applications?

The R5F52108CDFF#V0 incorporates multiple IEC60730-compliant safety features: self-diagnostic routines for the A/D converter and clock accuracy measurement circuit (CAC), analog input disconnection detection, independent watchdog timer (IWDT) with dedicated 125-kHz oscillator, and RAM test assistance functions. These features reduce external safety component requirements and simplify certification for Class B applications. The R5F52108CDFF#V0 is rated for −40°C to +85°C operation and supports robust reset mechanisms including power-on, voltage monitor, and software-initiated resets.