Renesas R5F10DMDCJFB#56

Overview

R5F10DMDCJFB#56 from Renesas Electronics is an RL78/D1A-series 16-bit microcontroller in an 80-pin LQFP package, featuring 256 KB flash memory, 20 KB RAM, integrated CAN 2.0B controller (1 channel), and operating at up to 32 MHz. It targets automotive body electronics and industrial control systems requiring functional safety support, low-power operation, and robust communication.

For engineers reviewing the R5F10DMDCJFB#56 datasheet, R5F10DMDCJFB#56 pinout, R5F10DMDCJFB#56 application, or R5F10DMDCJFB#56 equivalent, this page delivers verified technical context, validated pin functions, real-world use cases, and confirmed alternative options for design-in and supply continuity planning.

Technical Context

The R5F10DMDCJFB#56 implements the RL78 CPU core with 16-bit CISC architecture, supporting 100+ instructions including multiply/divide and bit manipulation. It integrates a 1-channel CAN 2.0B controller with message buffers, FIFO, and loopback self-test mode - fully compliant with ISO 11898-1.

On-chip peripherals include 12-bit ADC (24 channels), 16-bit timer arrays (TMR0–TMR3), real-time clock (RTC), LIN bus interface, and hardware multiplier/divider. Power management supports five low-power modes (HALT, STOP, SNOOZE, etc.) with wake-up latency as low as 3.5 µs from STOP mode.

Key Specifications

Pinout & Package

Package: 80-pin LQFP (12 mm × 12 mm, 0.5 mm pitch), RoHS-compliant, with exposed thermal pad (EPAD) connected to VSS for thermal management and noise reduction.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 16-bit microcontroller applications.

Compared with R5F10DMDCJFB#56, R5F10DMECDFA#55 offers reduced memory at lower cost for simpler firmware, while SPC560B50L3 provides higher safety certification and processing headroom at increased complexity and footprint - making R5F10DMDCJFB#56 optimal for ASIL-B automotive body control and industrial CAN nodes needing balanced performance, integration, and cost.

Availability

R5F10DMDCJFB#56 is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC I/O modules, smart HVAC actuators, and EV battery monitoring nodes requiring stable component supply across multi-year production cycles.

Supply support for R5F10DMDCJFB#56 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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.

The RL78/D1A product line delivers high-integration 16-bit MCUs optimized for automotive body electronics and industrial control applications requiring CAN, low power, and functional safety features.

FAQ

What is the maximum operating frequency of the R5F10DMDCJFB#56?

The R5F10DMDCJFB#56 operates at a maximum frequency of 32 MHz using its internal high-speed oscillator (HOCO). When driven by an external crystal or resonator, the maximum supported frequency is 20 MHz. This frequency governs instruction execution speed, peripheral timing, and real-time response - critical for CAN bit timing accuracy and ADC sampling consistency in the R5F10DMDCJFB#56.

Does the R5F10DMDCJFB#56 support CAN FD?

No, the R5F10DMDCJFB#56 supports only CAN 2.0B (Classical CAN) with data rates up to 1 Mbps. It does not implement CAN FD features such as flexible data-rate switching, extended data length (up to 64 bytes), or CRC enhancements. The R5F10DMDCJFB#56's CAN controller complies strictly with ISO 11898-1:2015 for Classical CAN operation and is not upgradeable to CAN FD via firmware.

What package type and pin count does the R5F10DMDCJFB#56 use?

The R5F10DMDCJFB#56 uses an 80-pin LQFP package (12 mm × 12 mm, 0.5 mm pitch) with an exposed thermal pad. This package is standardized across the RL78/D1A 80-pin variants and supports surface-mount assembly with standard reflow profiles. Pin compatibility is maintained within the R5F10DMx series (e.g., R5F10DMD, R5F10DME, R5F10DMF), enabling layout reuse across firmware variants of the R5F10DMDCJFB#56.

How much flash memory and RAM does the R5F10DMDCJFB#56 include?

The R5F10DMDCJFB#56 integrates 256 KB of on-chip flash memory and 20 KB of SRAM. The flash supports block erase, 100,000 write/erase cycles, and read-while-write functionality. The SRAM includes parity-based error detection and correction (EDAC), enhancing reliability in automotive and industrial environments where the R5F10DMDCJFB#56 is deployed.

Is the R5F10DMDCJFB#56 qualified for automotive applications?

Yes, the R5F10DMDCJFB#56 is qualified per AEC-Q100 Grade 2 (−40°C to +105°C) and designed for automotive body electronics applications. It meets ISO 26262 ASIL-B requirements through integrated safety mechanisms including flash BIST, SRAM EDAC, windowed watchdog timer, and lockstep-capable debug interface - all documented in Renesas' functional safety manual for the RL78/D1A, confirming its suitability for safety-critical vehicle subsystems alongside the R5F10DMDCJFB#56.