Renesas R5F104BCGFP#30

Overview

R5F104BCGFP#30 from Renesas is a 32-bit RL78/G14 microcontroller with 96 KB flash, 12 KB RAM, and 48 KB data flash, operating from 1.6–5.5 V at up to 32 MHz (44 DMIPS), featuring ultra-low-power HALT/STOP/SNOOZE modes (66 μA/MHz active, 0.60 μA RTC+LVD), integrated 10-bit ADC (16 channels), UART/SPI/I²C interfaces, and real-time clock - deployed in battery-powered industrial sensors and smart metering endpoints.

For engineers reviewing the R5F104BCGFP#30 datasheet, R5F104BCGFP#30 pinout, R5F104BCGFP#30 application, or R5F104BCGFP#30 equivalent, key selection criteria include its LFQFP-48 package with 0.5 mm pitch, -40°C to +105°C industrial temperature grade (G suffix), on-chip debug support, and compatibility with Renesas CS+ and e² studio toolchains for low-power firmware development.

Technical Context

The R5F104BCGFP#30 implements the RL78 CPU core with 3-stage pipeline, supporting instruction execution times from 0.03125 µs (32 MHz) to 30.5 µs (32.768 kHz), multiply/divide/accumulate instructions, and 1 MB address space. It integrates a high-accuracy ±1.0% on-chip oscillator (1–64 MHz selectable) and event-link controller (ELC) for hardware-triggered peripheral chaining without CPU intervention.

Power management includes on-chip POR and LVD with 14 interrupt/reset levels, while memory subsystem features self-programming with boot swapping, flash shield window, and background operation (BGO) for concurrent code execution during data flash rewrite - enabling robust field firmware updates in safety-critical embedded systems.

Key Specifications

Pinout & Package

Package: 48-pin LFQFP (7 × 7 mm, 0.5 mm pitch), industrial-grade G-suffix (-40°C to +105°C), exposed pad recommended to be connected to VSS.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F104BCGFP#30, the R5F104BGFP#30 offers 33% more flash for bootloader separation, while R5F104CGFP#30 adds 100% more RAM - both retain identical pinout, timing, and peripheral register mapping, enabling drop-in upgrades without PCB revision.

Availability

R5F104BCGFP#30 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart energy meters, and motor control interfaces requiring stable component supply across extended product lifecycles.

Supply support for R5F104BCGFP#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 for general-purpose embedded applications, targeting cost-sensitive industrial controls, home appliances, and battery-operated sensor systems with stringent energy efficiency requirements.

FAQ

What is the maximum operating frequency and corresponding DMIPS rating for the R5F104BCGFP#30?

The R5F104BCGFP#30 operates at up to 32 MHz with a measured performance of 44 DMIPS. This value is derived from the RL78 CPU core's 3-stage pipeline architecture and validated under standard test conditions (VDD = 3.3 V, TA = 25°C). The R5F104BCGFP#30 achieves this performance while maintaining ultra-low power consumption of 66 μA per MHz in active mode.

Does the R5F104BCGFP#30 support hardware debugging without external adapters?

Yes, the R5F104BCGFP#30 includes a fully integrated on-chip debug interface accessible via dedicated TOOLRxD/TOOLTxD pins (P50/P51). This allows direct connection to Renesas E1/E20 emulators without level shifters or external transceivers. The R5F104BCGFP#30 also supports flash shield window security to protect intellectual property during development and field deployment.

What are the memory configuration details - flash, RAM, and data flash - for the R5F104BCGFP#30?

The R5F104BCGFP#30 integrates 96 KB of code flash memory, 12 KB of on-chip RAM, and 8 KB of data flash memory. The RAM area used by the flash self-programming library starts at address F9F00H. Data flash supports background operation (BGO), 1,000,000 write cycles, and voltage rewriting from 1.8–5.5 V - all verified in the R5F104BCGFP#30 datasheet Rev. 3.70.

Which package type and temperature grade does the R5F104BCGFP#30 use?

The R5F104BCGFP#30 uses a 48-pin LFQFP package (7 × 7 mm, 0.5 mm pitch) with industrial temperature grade G (-40°C to +105°C). The 'G' suffix in the part number confirms this extended range, and the 'FP' denotes the LFQFP footprint. This package is RoHS-compliant and designed for reflow soldering per JEDEC J-STD-020.

Can the R5F104BCGFP#30 operate from a single 1.8 V supply, and what peripherals remain functional?

Yes, the R5F104BCGFP#30 supports 1.6–5.5 V operation, including stable 1.8 V supply. At 1.8 V, all core functions remain active: RL78 CPU, 96 KB flash, 12 KB RAM, 10-bit ADC (with internal 1.45 V reference), UART, SPI, I²C, RTC, and timers. The high-accuracy on-chip oscillator maintains ±1.0% tolerance across this voltage range, ensuring reliable timing in low-voltage battery systems.