Renesas R5F52108CDLJ#U0

Overview

R5F52108CDLJ#U0 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 compliance functions - deployed in industrial control panels requiring deterministic real-time response and functional safety support.

For engineers reviewing the R5F52108CDLJ#U0 datasheet, R5F52108CDLJ#U0 pinout, R5F52108CDLJ#U0 application, or R5F52108CDLJ#U0 equivalent, key selection criteria include its 100-pin TFLGA package (7 × 7 mm, 0.65-mm pitch), −40°C to +85°C temperature grade, chip version C feature set (including full RTC and 16-channel A/D), and compatibility with Renesas E1 emulator via FINE interface.

Technical Context

The R5F52108CDLJ#U0 implements a CISC Harvard-architecture 32-bit RX core with 5-stage pipeline, variable-length instructions, and 64-bit accumulator for single-cycle 32×32-bit multiply-accumulate operations. It supports little-endian or big-endian data arrangement and executes instructions in one system clock cycle at 50 MHz.

Its clock system integrates PLL, sub-clock (32.768 kHz), high-/low-speed on-chip oscillators, and IWDT-dedicated oscillator, with independent domain clocks (ICLK up to 50 MHz, PCLK up to 32 MHz, BCLK up to 12.5 MHz, FCLK up to 32 MHz). The ELC enables direct event-triggered peripheral operation without CPU intervention, enabling low-power deterministic timing control.

Key Specifications

Pinout & Package

Package: 100-pin TFLGA (PTLG0100JA-A), 7 × 7 mm, 0.65-mm pitch, 5-V tolerant I/O on selected pins (P00–P03), 122 total I/O lines (122 GPIO, 1 dedicated input, 76 open-drain outputs).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F52108ADLJ#U0, the R5F52108CDLJ#U0 adds full RTC and dual 10-bit D/A for time-aware control and analog actuation; versus R5F52108BDFP#30, it offers smaller 7×7 mm TFLGA packaging and TPU support for high-resolution position feedback - making it optimal for compact, safety-certified industrial edge nodes.

Availability

R5F52108CDLJ#U0 is available at Aetrix Electronics and suitable for industrial motor drives, smart metering systems, and building automation controllers requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.

Supply support for R5F52108CDLJ#U0 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 R5F52108CDLJ#U0, was designed for cost-sensitive industrial and consumer applications demanding high performance, functional safety features (IEC60730), and low-power operation in compact packages.

FAQ

What is the maximum operating frequency and CPU performance of the R5F52108CDLJ#U0?

The R5F52108CDLJ#U0 operates at a maximum frequency of 50 MHz and delivers 78 DMIPS of processing performance. Its 32-bit RX CPU core features a 5-stage pipeline, variable-length instructions, and a 64-bit accumulator capable of single-cycle 32×32-bit multiply-accumulate operations - enabling efficient execution of real-time control algorithms in the R5F52108CDLJ#U0.

Does the R5F52108CDLJ#U0 include a real-time clock (RTC) and what are its capabilities?

Yes, the R5F52108CDLJ#U0 includes a fully featured RTC module powered by the 32.768 kHz sub-clock. It supports calendar/time display (year/month or 32-bit seconds), leap-year and 30-second adjustments, time-capture on external events, and RTC-initiated wake-up from deep software standby mode - all confirmed in the RX210 Group datasheet for chip version C, which applies to the R5F52108CDLJ#U0.

What analog peripherals are integrated into the R5F52108CDLJ#U0?

The R5F52108CDLJ#U0 integrates a 12-bit A/D converter with 16 input channels and 1 μs conversion time, two 10-bit D/A converters, two 2-channel analog comparators (CMPA/CMPB), and an on-chip temperature sensor. These peripherals are fully supported in chip version C and are accessible via dedicated pins and registers documented in the R5F52108CDLJ#U0 datasheet.

Is the R5F52108CDLJ#U0 qualified for industrial temperature range operation?

Yes, the R5F52108CDLJ#U0 is rated for operation from −40°C to +85°C (D version), as specified in Table 1.6 of the RX210 Group datasheet. This qualification covers all core functionality including flash, SRAM, A/D, RTC, and communication peripherals - making the R5F52108CDLJ#U0 suitable for uncontrolled industrial environments without derating.

What debug and programming interface does the R5F52108CDLJ#U0 support?

The R5F52108CDLJ#U0 supports the FINE (Fast In-Circuit Emulator) interface for on-chip debugging and flash programming, compatible with Renesas E1 emulator hardware. This interface requires only four pins (VCC, VSS, FINE_CLK, FINE_DATA) and enables non-intrusive real-time trace, breakpoint debugging, and secure firmware updates - confirmed for chip version C devices including the R5F52108CDLJ#U0.