Renesas R5F104LFAFB#30

Overview

R5F104LFAFB#30 from Renesas is a 64-pin LFQFP (0.5 mm pitch), 512 KB flash, 48 KB RAM RL78/G14 16-bit microcontroller operating from 1.6–5.5 V, delivering 44 DMIPS at 32 MHz with ultra-low power consumption (66 μA/MHz active, 0.60 μA RTC+LVD mode), used in industrial motor control and smart sensor nodes.

For engineers reviewing the R5F104LFAFB#30 datasheet, R5F104LFAFB#30 pinout, R5F104LFAFB#30 application, or R5F104LFAFB#30 equivalent, key selection considerations include its 64-pin LFQFP-0.5mm package, integrated 12-bit RTC with calendar/alarm, dual 8-channel 16-bit timer array (TAU), 20-channel 10-bit ADC, and support for LIN-bus UART and hardware DTC/ELC peripheral linking.

Technical Context

The R5F104LFAFB#30 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 µs (32 MHz high-speed on-chip oscillator) to 30.5 µs (32.768 kHz subsystem clock). It integrates a Data Transfer Controller (DTC) with chain transfer and an Event Link Controller (ELC) enabling direct peripheral-to-peripheral event routing without CPU intervention.

Its memory subsystem includes 512 KB code flash (1 KB block size, security lockable), 8 KB data flash (1M rewrite cycles, background operation), and 48 KB on-chip RAM. Power management features HALT, STOP, and SNOOZE modes, plus on-chip POR and 14-level LVD with interrupt/reset selectability.

Key Specifications

Pinout & Package

Package: 64-pin LFQFP, 10 × 10 mm body, 0.5 mm pitch, lead-free, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F104LGAFB#30 and R5F104LJAFB#30, the R5F104LFAFB#30 provides maximum on-chip memory headroom for complex control algorithms and future firmware expansion, while retaining identical peripheral set, power profile, and pinout - making it the highest-capacity drop-in option in the 64-pin LFQFP family.

Availability

R5F104LFAFB#30 is available at Aetrix Electronics and suitable for industrial motor control, smart utility metering, and automotive body electronics requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant manufacturing.

Supply support for R5F104LFAFB#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 industrial, automotive, and IoT markets.

The RL78/G14 product line delivers true low-power 16-bit MCUs optimized for cost-sensitive, battery-operated, and industrial control applications requiring robust peripheral integration and long-term supply stability.

FAQ

What is the maximum operating frequency and corresponding performance of the R5F104LFAFB#30?

The R5F104LFAFB#30 operates up to 32 MHz using its high-accuracy on-chip oscillator (±1.0% over -20 to +85°C), delivering 44 DMIPS. Its minimum instruction execution time is 0.03125 µs at 32 MHz, and it supports lower-speed operation down to 32.768 kHz for ultra-low-power RTC functions. This dual-speed capability allows dynamic power/performance scaling within a single R5F104LFAFB#30 design.

Does the R5F104LFAFB#30 include a built-in DAC or only ADC functionality?

The R5F104LFAFB#30 includes a 10-bit, 20-channel successive-approximation ADC with internal 1.45 V reference and temperature sensor, but it does not integrate any DAC channels. Its analog output capability is limited to PWM-driven buzzer/tone generation via PCLBUZ0/PCLBUZ1 pins. For analog voltage output, external DAC or RC-filtered PWM must be used in designs based on the R5F104LFAFB#30.

What package type and pin count does the R5F104LFAFB#30 use, and is it RoHS-compliant?

The R5F104LFAFB#30 uses a 64-pin LFQFP package with 10 × 10 mm body and 0.5 mm pitch. The "#30" suffix indicates tray packaging per JEDEC standard. It is lead-free and RoHS-compliant, with moisture sensitivity level (MSL) rated per J-STD-020. The package supports reflow soldering and is compatible with standard SMT assembly processes used for the R5F104LFAFB#30.

How many UART/LIN interfaces does the R5F104LFAFB#30 support, and are they hardware-accelerated?

The R5F104LFAFB#30 supports four UART channels, all with LIN-bus protocol acceleration including automatic sync-break detection, checksum generation/verification, and identifier filtering. Channels UART0–UART2 are fully independent; UART3 shares pins with other peripherals and requires configuration. This hardware LIN support eliminates software bit-banging overhead, making the R5F104LFAFB#30 suitable for automotive body networks and industrial fieldbus nodes.

What is the data flash endurance and rewrite voltage range for the R5F104LFAFB#30?

The R5F104LFAFB#30 includes 8 KB of data flash memory rated for 1,000,000 write/erase cycles (typical) and supports background operation (BGO), allowing code execution from program flash during data flash rewriting. Rewrite operations function across the full supply range of VDD = 1.8–5.5 V, enabling in-system updates without external voltage regulation - a key reliability feature for field-deployed R5F104LFAFB#30 applications.