Renesas R5F104MFGFB#30

Overview

R5F104MFGFB#30 from Renesas is a 80-pin LFQFP (0.5 mm pitch), industrial-grade RL78/G14 16-bit microcontroller with 96 KB flash, 12 KB RAM, and 8 KB data flash, operating from 1.6–5.5 V at -40 to +105°C. It delivers 44 DMIPS at 32 MHz, features ultra-low power consumption (66 μA/MHz active, 0.60 μA RTC+LVD), and integrates 12-bit ADC (16 channels), UART/SCI/I²C interfaces, and real-time clock.

For engineers reviewing the R5F104MFGFB#30 datasheet, R5F104MFGFB#30 pinout, R5F104MFGFB#30 application, or R5F104MFGFB#30 equivalent, this device is selected for battery-powered industrial sensors, motor control subsystems, and embedded HMI modules where low-power operation, integrated analog peripherals, and extended temperature reliability are critical.

Technical Context

The R5F104MFGFB#30 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 µs (32 MHz) to 30.5 µs (32.768 kHz). It includes on-chip high-accuracy oscillator (±1.0% over -20 to +85°C), Event Link Controller (ELC) for peripheral event chaining, and Data Transfer Controller (DTC) with block/repeat transfer modes.

Its memory subsystem comprises 96 KB code flash (1 KB blocks), 8 KB data flash with background operation (BGO) and 1M rewrite cycles, and 12 KB SRAM. Power management includes HALT, STOP, and SNOOZE modes, plus on-chip LVD (14 selectable levels) and POR.

Key Specifications

Pinout & Package

Package: 80-pin LFQFP, 12 × 12 mm, 0.5 mm pitch, exposed thermal pad (recommended to connect to VSS).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F104MFGFB#30, R5F104MGGB#30 offers scalable memory for future firmware expansion without layout change, while R5F104LEGB#30 trades package size and data flash capacity for lower assembly cost and smaller board area - both require validation of thermal and signal integrity in target mechanical constraints.

Availability

R5F104MFGFB#30 is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, automotive body electronics, and human-machine interface modules requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for R5F104MFGFB#30 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 industrial, automotive, and IoT markets.

The RL78/G14 product line delivers true low-power 16-bit MCUs optimized for cost-sensitive, battery-operated, and thermally demanding embedded applications - balancing performance, integration, and energy efficiency.

FAQ

What is the maximum operating frequency and corresponding DMIPS rating for the R5F104MFGFB#30?

The R5F104MFGFB#30 operates at up to 32 MHz and achieves 44 DMIPS performance per the RL78/G14 datasheet. This metric reflects integer computational throughput under standard benchmark conditions and is sustained across its full 1.6–5.5 V supply range and -40°C to +105°C ambient temperature. The R5F104MFGFB#30 uses an on-chip high-speed oscillator with ±1.0% accuracy to maintain timing integrity without external crystals.

Does the R5F104MFGFB#30 support background data flash rewriting while executing application code?

Yes, the R5F104MFGFB#30 supports Background Operation (BGO) for data flash. This allows the CPU to execute instructions from program memory while simultaneously erasing or writing to the 8 KB data flash area. The feature enables seamless firmware parameter updates, calibration storage, and event logging without interrupting real-time tasks - a capability confirmed in Section 1.1 "Features" of the R01DS0053EJ0370 datasheet.

What are the key power-saving modes available on the R5F104MFGFB#30 and their typical current consumption?

The R5F104MFGFB#30 provides HALT, STOP, and SNOOZE modes. In STOP mode with only RTC and LVD active, it draws 0.60 μA (typical); HALT mode consumes 66 μA/MHz during active operation. These values are measured at VDD = 3.0 V and TA = 25°C per the datasheet's electrical characteristics table. The R5F104MFGFB#30 achieves these figures using an integrated low-dropout regulator and clock gating architecture.

How many analog input channels does the R5F104MFGFB#30 ADC support, and what reference options are available?

The R5F104MFGFB#30 integrates a 12-bit successive-approximation ADC with 16 analog input channels (ANI0–ANI15). It supports selectable references: external AVREFP/AVREFM pins, internal 1.45 V bandgap reference, or VDD. Channel configuration, sampling time, and trigger sources (software, timer, or peripheral event) are programmable via dedicated ADC control registers - all verified in the "A/D Converter" section of the R01DS0053EJ0370 datasheet.

Is the R5F104MFGFB#30 pin-compatible with other RL78/G14 variants in the same 80-pin LFQFP package?

Yes, the R5F104MFGFB#30 shares identical pinout and electrical characteristics with all other RL78/G14 devices in the 80-pin LFQFP (0.5 mm pitch) package, including R5F104MGGB#30 and R5F104MHGFB#30. Pin functions, power domains, and debug interface signals are fully aligned per the "Pin Configuration" diagrams in Sections 1.3.7–1.3.8 of R01DS0053EJ0370, enabling drop-in replacement for memory or feature upgrades.