Renesas R5F101SHAFB#V0

Overview

R5F101SHAFB#V0 from Renesas is a 128-pin LFQFP (0.5 mm pitch), 16 KB flash, 2 KB RAM, no data flash, industrial-grade RL78/G13 16-bit MCU operating from 1.6 V to 5.5 V, delivering 41 DMIPS at 32 MHz with ultra-low power consumption (66 μA/MHz active, 0.57 μA RTC+LVD mode), used in battery-powered sensor nodes and industrial control panels.

For engineers reviewing the R5F101SHAFB#V0 datasheet, R5F101SHAFB#V0 pinout, R5F101SHAFB#V0 application, or R5F101SHAFB#V0 equivalent, key selection criteria include its 128-pin LFQFP-0.5mm package, absence of on-chip data flash, -40°C to +85°C industrial temperature rating (D grade), and integrated peripherals including 16-bit timers, 10-bit ADC (26 channels), UART/LIN, I²C, and CSI interfaces.

Technical Context

The R5F101SHAFB#V0 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 μs (32 MHz high-speed mode) to 30.5 μs (32.768 kHz subsystem clock). It integrates a 16-bit timer array (16 channels), real-time clock with calendar/alarm, and 10-bit A/D converter with internal 1.45 V reference and temperature sensor.

Power management includes HALT, STOP, and SNOOZE low-power modes, on-chip POR and LVD (14 selectable levels), and DMA controller with 2 channels. Serial interfaces comprise up to 8 CSI channels, 4 UART/LIN channels, and 10 I²C/Simplified I²C channels - all confirmed for this variant per RL78/G13 family documentation.

Key Specifications

Pinout & Package

Package: 128-pin LFQFP, 0.5 mm pitch, 14 × 20 mm body size, lead-free, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F101SHAFB#V0, R5F101SLAFB#V0 trades flash density for scalability in feature-rich firmware, while R5F100SHAFB#V0 adds data flash for nonvolatile parameter retention - both retain identical timing, I/O, and peripheral compatibility but differ in memory architecture trade-offs.

Availability

R5F101SHAFB#V0 is available at Aetrix Electronics and suitable for industrial sensor nodes, programmable logic relays, and smart HVAC controllers requiring stable component supply across extended production lifecycles.

Supply support for R5F101SHAFB#V0 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, and power solutions for industrial, automotive, and IoT markets.

The RL78/G13 product line delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive, battery-operated, and industrial control applications where energy efficiency and peripheral integration outweigh raw processing throughput.

FAQ

What is the maximum operating frequency and performance of the R5F101SHAFB#V0?

The R5F101SHAFB#V0 operates at up to 32 MHz with a peak performance of 41 DMIPS. Its RL78 CPU core achieves this using a 3-stage pipeline CISC architecture and a high-accuracy on-chip oscillator (±1.0% over -20°C to +85°C). This frequency is fully supported across the full 1.6 V to 5.5 V supply range, making R5F101SHAFB#V0 suitable for applications demanding deterministic real-time response without external clock sources.

Does the R5F101SHAFB#V0 include on-chip data flash memory?

No, the R5F101SHAFB#V0 does not include on-chip data flash memory. Per Renesas' part numbering convention ("101" series), this variant provides only 16 KB of code flash and 2 KB of RAM. Applications requiring nonvolatile parameter storage must use external serial EEPROM or leverage the code flash with wear-leveling software - unlike the "100" series (e.g., R5F100SHAFB#V0), which integrates 8 KB of dedicated data flash.

What package type and pin count does the R5F101SHAFB#V0 use?

The R5F101SHAFB#V0 uses a 128-pin LFQFP package with 0.5 mm pitch and 14 × 20 mm body dimensions. The "FB" suffix in the part number explicitly denotes LFQFP-0.5mm, and the "#V0" packaging code indicates tray delivery. This package provides full access to all 120 GPIOs, multiple serial interfaces, and analog peripherals documented for the RL78/G13 family's 128-pin variants.

What is the operating temperature range certified for the R5F101SHAFB#V0?

The R5F101SHAFB#V0 is rated for industrial operation from -40°C to +85°C (D grade). This is confirmed by its "D" suffix in the part number and aligns with Renesas' qualification standards for industrial applications. It does not support the extended -40°C to +105°C (G grade) range - users requiring higher ambient tolerance must select an equivalent "G"-suffixed variant such as R5F101SHAGB#V0 (if available in same package).

Which serial communication interfaces are available on the R5F101SHAFB#V0?

The R5F101SHAFB#V0 supports up to 8 CSI (Simplified SPI) channels, 4 UART/LIN channels, and 10 I²C/Simplified I²C channels - all confirmed in the RL78/G13 datasheet for 128-pin devices. These interfaces share multiplexed pins (e.g., P10/P11), and their activation is controlled via software configuration of peripheral enable registers and pin function select bits, enabling flexible hardware reuse without PCB changes.