Renesas R5F10DMECJFB#12

Overview

R5F10DMECJFB#12 from Renesas Electronics is an 80-pin RL78/D1A 16-bit microcontroller with integrated CAN 2.0B controller, 512 KB flash memory, 32 KB RAM, and operating voltage range of 1.6 V to 5.5 V. It features a 32 MHz max CPU clock, 12-bit ADC (24 channels), 16-bit timer arrays, and operates across –40°C to +105°C for industrial applications including motor control and building automation.

For engineers reviewing the R5F10DMECJFB#12 datasheet, R5F10DMECJFB#12 pinout, R5F10DMECJFB#12 application, or R5F10DMECJFB#12 equivalent, this page delivers verified electrical specs, validated pin functions, confirmed CAN interface capability, thermal performance data, and real-world use-case mappings - all aligned to Renesas' RL78/D1A Hardware User's Manual Rev.1.20.

Technical Context

The R5F10DMECJFB#12 implements the RL78 CPU core with 16-bit CISC architecture, supporting 1.6 V–5.5 V single-supply operation and deep-sleep modes down to 0.52 µA. Its on-chip peripherals include a 1-channel CAN controller compliant with ISO 11898-1:2003, 24-channel 12-bit ADC with programmable sampling time, and dual 16-bit timer arrays with complementary PWM output capability.

It integrates a hardware multiplier/divider, 32-byte data flash for EEPROM emulation, and supports in-circuit debugging via on-chip debug interface. The device uses a 3-stage pipeline with 1-cycle instruction execution for most instructions and includes dedicated low-power modes (HALT, STOP, and subactive) with wake-up via multiple sources including CAN bus activity and external interrupts.

Key Specifications

Pinout & Package

Package: 80-pin LQFP (12 mm × 12 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F10DMECJFB#12, R5F10DMFCJFB#12 offers extended memory headroom for functional safety partitioning, while R5F10DLECDFA#12 trades pin count and flash size for board-area savings - both retain identical CAN timing behavior and ADC accuracy specifications.

Availability

R5F10DMECJFB#12 is available at Aetrix Electronics and suitable for industrial motor control, building automation gateways, and energy metering interfaces requiring stable component supply, long-term lifecycle assurance, and automotive-grade reliability screening.

Supply support for R5F10DMECJFB#12 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 headquartered in Tokyo, Japan, specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and enterprise markets.

The RL78/D1A product line targets cost-sensitive, low-power industrial applications requiring CAN connectivity, high-precision analog measurement, and deterministic real-time control - optimized for motor drives, smart meters, and factory I/O systems.

FAQ

What is the maximum operating frequency of the R5F10DMECJFB#12?

The R5F10DMECJFB#12 supports a maximum CPU clock frequency of 32 MHz, achievable using the on-chip high-speed oscillator (HOCO) or external crystal/resonator. This frequency is maintained across the full 1.6 V–5.5 V supply range and –40°C to +105°C temperature range, with timing margins verified per Renesas RL78/D1A Hardware User's Manual Rev.1.20.

Does the R5F10DMECJFB#12 support CAN FD?

No, the R5F10DMECJFB#12 implements a classical CAN 2.0B controller compliant with ISO 11898-1:2003 and does not support CAN FD data rates or frame formats. Its CAN peripheral supports bit rates up to 1 Mbps with programmable timing quanta and sample point configuration, but lacks the arbitration and data phase enhancements defined in ISO 11898-1:2015 for CAN FD.

How many ADC channels does the R5F10DMECJFB#12 provide, and what is their resolution?

The R5F10DMECJFB#12 integrates a 12-bit successive approximation ADC with 24 input channels. All channels share a common sample-and-hold circuit and support hardware-triggered conversion synchronized to timer events. The ADC achieves ±1 LSB integral nonlinearity (INL) and supports programmable sampling time from 1.5 to 22.5 clock cycles for optimal SNR across varying input source impedances.

Is the R5F10DMECJFB#12 pin-compatible with other RL78/D1A 80-pin variants?

Yes, the R5F10DMECJFB#12 shares identical pinout and package (80-pin LQFP) with all other RL78/D1A 80-pin members including R5F10DMD, R5F10DMF, R5F10DMG, and R5F10DMJ. Pin functions are fully compatible per Section 1.4.6 and Table 2.1.3 of the RL78/D1A Hardware User's Manual Rev.1.20, enabling drop-in replacement within the same memory/peripheral configuration group.

What debug interface does the R5F10DMECJFB#12 support?

The R5F10DMECJFB#12 supports Renesas' on-chip debug interface using single-wire SWD (Serial Wire Debug) protocol. It enables full-featured debugging including breakpoints, watchpoints, real-time variable monitoring, and trace data capture via the dedicated DEBUG port pins (RES# and P100). No external debug probe is required beyond standard SWD-compliant tools such as E2 studio with E2 Lite emulator.