Renesas R5F104PFGFB#30

Overview

R5F104PFGFB#30 from Renesas is a 100-pin LFQFP, 0.5 mm pitch, industrial-grade (G) RL78/G14 16-bit MCU 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 UART, I²C, SPI, 16-bit timers, 10-bit ADC (19 channels), and real-time clock.

For engineers reviewing the R5F104PFGFB#30 datasheet, R5F104PFGFB#30 pinout, R5F104PFGFB#30 application, or R5F104PFGFB#30 equivalent, key selection criteria include its 100-pin LFQFP-0.5 mm package, industrial temperature rating (G), 96 KB flash/12 KB RAM configuration, integrated analog peripherals (ADC, DAC, comparator), and support for low-power sensor node and motor control designs requiring high I/O count and deterministic timing.

Technical Context

The R5F104PFGFB#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 embeds a configurable Event Link Controller (ELC) enabling hardware-triggered peripheral chaining without CPU intervention.

Its power management includes HALT, STOP, and SNOOZE modes, plus on-chip LVD with 14 selectable voltage thresholds and POR. The device supports background operation (BGO) for data flash rewriting while executing code from program memory, with 1,000,000 write cycles endurance.

Key Specifications

Pinout & Package

Package: 100-pin LFQFP, 14 × 14 mm body, 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 microcontroller applications.

Compared with R5F104PFGFB#30, R5F104PGGFB#30 offers +32 KB flash and +4 KB RAM at identical footprint and temperature grade-ideal for incremental firmware expansion-while R5F104PHGFB#30 adds +96 KB flash and +8 KB RAM, enabling richer HMI or safety-monitoring layers without PCB redesign.

Availability

R5F104PFGFB#30 is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, energy metering interfaces, and automotive body control modules requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for R5F104PFGFB#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 family is designed for cost-sensitive, ultra-low-power general-purpose embedded applications-balancing performance, integration, and energy efficiency in compact packages for industrial automation and consumer appliances.

FAQ

What is the maximum operating frequency and corresponding performance of the R5F104PFGFB#30?

The R5F104PFGFB#30 operates at up to 32 MHz, delivering 44 DMIPS of processing performance. This speed is achieved using the high-speed on-chip oscillator with ±1.0% accuracy across 1.8–5.5 V and -20 to +85°C. At this frequency, the RL78 core executes instructions in as little as 0.03125 µs, supporting real-time control tasks such as motor commutation and sensor fusion. The R5F104PFGFB#30 maintains full functionality-including ADC, timers, and serial interfaces-at maximum clock rate.

Does the R5F104PFGFB#30 support in-system programming and secure firmware updates?

Yes, the R5F104PFGFB#30 supports self-programming of both code and data flash memory with boot swapping and flash shield window protection. It includes an on-chip debug function and prohibits block erase/rewrite via security settings to prevent unauthorized access. Firmware updates can be performed via UART, CSI, or I²C using Renesas' standard flash programming algorithms. The R5F104PFGFB#30 also supports background operation (BGO), allowing code execution during data flash writes-critical for fail-safe over-the-air updates.

What analog peripherals are integrated into the R5F104PFGFB#30, and how many channels do they support?

The R5F104PFGFB#30 integrates a 10-bit successive-approximation ADC with 19 input channels (ANI0–ANI19), an 8-bit D/A converter with two output channels (ANO0, ANO1), and up to two comparators with window and low/high-speed modes. The ADC supports internal 1.45 V reference and on-die temperature sensing. All analog blocks operate across the full 1.6–5.5 V supply range. These peripherals are accessible on dedicated pins (e.g., P20–P23, P120–P147) and support simultaneous sampling triggered by ELC or timers-enabling synchronized acquisition in R5F104PFGFB#30-based measurement systems.

How does the R5F104PFGFB#30 manage power in battery-operated applications?

The R5F104PFGFB#30 provides three ultra-low-power modes: HALT (CPU stopped, peripherals active), STOP (all clocks halted except RTC/LVD), and SNOOZE (selected peripherals active while CPU sleeps). In STOP mode with only RTC and LVD enabled, it consumes just 0.60 μA. Its 66 μA/MHz active current and flexible clock gating minimize dynamic power. Voltage regulation is handled internally via the REGC pin, requiring only a 0.47–1 µF capacitor to VSS. These features make the R5F104PFGFB#30 ideal for coin-cell or energy-harvesting applications where runtime and wake-up latency are critical.

Is the R5F104PFGFB#30 pin-compatible with other RL78/G14 variants in the same package?

Yes, all RL78/G14 devices in the 100-pin LFQFP-0.5 mm package-including R5F104PFGFB#30, R5F104PGGFB#30, and R5F104PHGFB#30-are fully pin-compatible. They share identical pin functions, electrical characteristics, and thermal pad layout. Memory size differences (96 KB vs. 128 KB vs. 192 KB flash) and RAM capacity do not affect pin behavior or peripheral mapping. This allows drop-in replacement during design iteration or volume production scaling without PCB changes-provided the target application fits within the smaller memory footprint of the R5F104PFGFB#30.