Renesas R5F101GHAFB#30

Overview

R5F101GHAFB#30 from Renesas is a 48-pin LFQFP-packaged 16-bit RL78/G13 microcontroller with 128 KB flash, 8 KB data flash, 12 KB RAM, 32 MHz max CPU speed (41 DMIPS), and ultra-low-power operation (66 μA/MHz active, 0.57 μA RTC+LVD). It targets battery-powered industrial sensors and smart metering interfaces requiring integrated analog peripherals and secure firmware updates.

For engineers reviewing the R5F101GHAFB#30 datasheet, R5F101GHAFB#30 pinout, R5F101GHAFB#30 application, or R5F101GHAFB#30 equivalent, key selection criteria include its 48-pin LFQFP-0.5mm package, absence of on-chip data flash (R5F101x series), -40°C to +105°C industrial temperature grade (G suffix), and support for BGO data flash rewriting during program execution.

Technical Context

The R5F101GHAFB#30 implements the RL78 CPU core with 3-stage pipeline CISC architecture, 1 MB address space, and configurable instruction timing (0.03125 μs @ 32 MHz to 30.5 μs @ 32.768 kHz). It integrates a 12-bit interval timer, real-time clock with calendar/alarm, and watchdog timer with dedicated low-speed oscillator.

Peripherals include an 8/10-bit 26-channel ADC with internal 1.45 V reference and temperature sensor, up to 16× 16-bit timers, 3–10× I²C/Simplified I²C channels, 2–4× UART/LIN, and 2–8× CSI (SPI-compatible) interfaces - all operating across 1.6–5.5 V supply range with HALT/STOP/SNOOZE power modes.

Key Specifications

Pinout & Package

Package: 48-pin LFQFP (7 mm × 7 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F100GHAFB#30, the R5F101GHAFB#30 removes data flash to reduce die size and cost while retaining full peripheral compatibility - ideal for applications using external EEPROM or FRAM. Versus RL78/G14, it trades CAN and memory headroom for lower power and smaller footprint in cost-sensitive industrial edge nodes.

Availability

R5F101GHAFB#30 is available at Aetrix Electronics and suitable for smart metering, industrial motor control, wireless sensor nodes, and building automation systems requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for R5F101GHAFB#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/G13 family delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive industrial and consumer applications demanding high integration, robustness, and long-term supply stability.

FAQ

What is the maximum operating frequency and corresponding DMIPS rating of the R5F101GHAFB#30?

The R5F101GHAFB#30 operates at up to 32 MHz with a measured performance of 41 DMIPS. This is achieved using the high-speed on-chip oscillator (±1.0% accuracy over -40°C to +85°C), and the RL78 CPU core's 3-stage pipeline ensures deterministic instruction timing critical for real-time control loops in the R5F101GHAFB#30.

Does the R5F101GHAFB#30 include on-chip data flash memory?

No, the R5F101GHAFB#30 does not include on-chip data flash memory. The "101" in the part number explicitly denotes absence of data flash (per RL78/G13 documentation). Applications requiring nonvolatile parameter storage must use external EEPROM, FRAM, or serial flash - unlike the R5F100x series which includes 4–8 KB data flash. This distinction is confirmed in the R5F101GHAFB#30's memory configuration table.

What package type and pin count does the R5F101GHAFB#30 use?

The R5F101GHAFB#30 uses a 48-pin LFQFP package with 0.5 mm pitch (7 mm × 7 mm body), identified by the "FB" suffix per Renesas' ordering code convention. This package is RoHS-compliant and rated for industrial temperature operation (-40°C to +105°C), making it suitable for dense PCB layouts in space-constrained industrial modules where the R5F101GHAFB#30 is deployed.

How does the R5F101GHAFB#30 support low-power operation in battery-powered systems?

The R5F101GHAFB#30 achieves ultra-low-power operation via multiple hardware states: 66 μA/MHz active current, 0.57 μA in STOP mode with RTC + LVD active, and configurable HALT/SNOOZE modes. Its 1.6–5.5 V supply range allows direct connection to primary lithium cells or energy harvesters, and the on-chip LVD with 14 thresholds enables precise brown-out management - all essential for extending runtime in remote sensor deployments using the R5F101GHAFB#30.

Which communication interfaces are available on the R5F101GHAFB#30?

The R5F101GHAFB#30 integrates up to 3–10 channels of I²C/Simplified I²C, 2–4 channels of UART/LIN, and 2–8 channels of CSI (SPI-compatible serial interface). It does not include CAN or USB. These interfaces support common industrial protocols including Modbus RTU (UART), sensor communication (I²C), and display/backlight control (CSI), enabling flexible connectivity in applications built around the R5F101GHAFB#30.