Renesas R5F104MGAFA#30

Overview

R5F104MGAFA#30 from Renesas is a 32-bit RL78/G14 microcontroller with 96 KB flash, 12 KB RAM, and 80-pin LQFP-0.65mm package, operating from 1.6–5.5 V at -40 to +85°C. It delivers 44 DMIPS at 32 MHz, features 20-channel 10-bit ADC, dual UART/LIN, 12-channel 16-bit TAU timer, RTC with calendar, and ultra-low-power HALT/STOP/SNOOZE modes-used in industrial sensor nodes and smart metering interfaces.

For engineers reviewing the R5F104MGAFA#30 datasheet, R5F104MGAFA#30 pinout, R5F104MGAFA#30 application, or R5F104MGAFA#30 equivalent, key selection criteria include its 80-pin LQFP-0.65mm footprint, 96 KB code flash with data flash shield window, integrated LIN-capable UARTs, and support for background data flash rewriting (BGO) without CPU stall.

Technical Context

The R5F104MGAFA#30 implements the RL78 CPU core with 3-stage pipeline, supporting instruction execution times from 0.03125 µs (32 MHz high-speed mode) to 30.5 µs (32.768 kHz ultra-low-speed mode), plus multiply/divide/accumulate instructions and 1 MB address space. Its on-chip peripherals include Event Link Controller (ELC) for hardware-triggered peripheral chaining and Data Transfer Controller (DTC) with block/repeat transfer modes activated by interrupt sources.

Power management integrates on-chip POR, 14-level LVD with selectable reset/interrupt, and multiple low-power modes: HALT (66 µA/MHz), STOP (0.60 µA with RTC+LVD active), and SNOOZE (peripheral-triggered wake-up while CPU sleeps). Clocking supports 64–1 MHz internal oscillator with ±1.0% accuracy across 1.8–5.5 V and -20 to +85°C.

Key Specifications

Pinout & Package

Package: 80-pin LQFP, 14 × 14 mm, 0.65 mm pitch, exposed pad not applicable (non-QFN).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F104LGAFA#30 and R5F104MGAFP#30, the R5F104MGAFA#30 provides optimal balance of memory (96 KB), I/O count (64 GPIO), and compact 0.65 mm pitch packaging-making it ideal for cost-sensitive industrial controls where board space is constrained but full peripheral access is required.

Availability

R5F104MGAFA#30 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart energy meter interfaces, and factory automation I/O terminals requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for R5F104MGAFA#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, power, and SoC solutions for automotive, industrial, and IoT markets.

The RL78/G14 product line delivers true low-power performance (66 µA/MHz, 0.60 µA STOP) with rich analog/mixed-signal integration-designed specifically for cost-sensitive industrial controls, sensor hubs, and battery-operated edge devices.

FAQ

What is the maximum operating frequency and corresponding DMIPS rating for the R5F104MGAFA#30?

The R5F104MGAFA#30 operates at up to 32 MHz using its high-speed on-chip oscillator, delivering 44 DMIPS performance. This is measured under standard conditions (VDD = 1.8–5.5 V, TA = -40 to +85°C) and reflects the RL78 CPU core's 3-stage pipeline efficiency with optimized instruction mix. The R5F104MGAFA#30 maintains this performance across its full voltage and temperature range without derating.

Does the R5F104MGAFA#30 support background data flash rewriting (BGO), and what is the endurance specification?

Yes, the R5F104MGAFA#30 supports Background Operation (BGO) for data flash rewriting, allowing CPU instruction execution from program memory during data flash write/erase cycles. Its 4 KB data flash is rated for 1,000,000 rewrite cycles (typical) at VDD = 1.8–5.5 V. The R5F104MGAFA#30 implements flash shield window and block erase prohibition to protect critical firmware sections during field updates.

What are the supported low-power modes of the R5F104MGAFA#30, and what is the current consumption in STOP mode?

The R5F104MGAFA#30 supports HALT, STOP, and SNOOZE low-power modes. In STOP mode-with only RTC and LVD active-the device draws 0.60 µA (typical) at VDD = 1.8–5.5 V and TA = -20 to +85°C. Wake-up is possible via external interrupt, RTC alarm, or LVD event. The R5F104MGAFA#30 achieves this ultra-low current through optimized power gating and clock domain isolation.

How many analog input channels and what ADC resolution does the R5F104MGAFA#30 provide?

The R5F104MGAFA#30 integrates a 10-bit successive-approximation ADC with up to 20 analog input channels (ANI0–ANI19), supporting single-ended and differential configurations. It includes an internal 1.45 V reference voltage and on-die temperature sensor, enabling direct thermal monitoring without external components. The R5F104MGAFA#30 ADC operates across the full 1.6–5.5 V supply range with guaranteed monotonicity and ±1 LSB INL.

Which serial communication interfaces are available on the R5F104MGAFA#30, and does it support LIN bus protocol?

The R5F104MGAFA#30 provides 3 UART/LIN channels, 4 CSI (SPI-compatible) channels, and 4 I²C/simplified I²C channels. All UART modules support LIN 2.2 physical layer compliance-including automatic sync-break detection, checksum generation/verification, and slave node response timing-enabling direct connection to LIN bus networks without external transceivers. The R5F104MGAFA#30 uses dedicated UART registers and hardware assist for LIN frame handling.