Renesas R5F101PHAFB#10

Overview

R5F101PHAFB#10 from Renesas is a 100-pin LFQFP (0.5-mm pitch), 16-bit RL78/G13 microcontroller with 96 KB flash memory, 8 KB RAM, and no data flash, designed for ultra-low-power industrial control applications operating from 1.6 V to 5.5 V across –40°C to +85°C ambient. It delivers 41 DMIPS at 32 MHz, integrates a real-time clock, 10-bit A/D converter (26 channels), UART/LIN, I²C, and CSI interfaces, and supports HALT/STOP/SNOOZE low-power modes.

For engineers reviewing the R5F101PHAFB#10 datasheet, R5F101PHAFB#10 pinout, R5F101PHAFB#10 application, or R5F101PHAFB#10 equivalent, key selection criteria include its 100-pin LFQFP-0.5 mm package, absence of on-chip data flash, industrial-grade temperature range, and support for background data flash programming in compatible variants - though this specific part omits data flash entirely.

Technical Context

The R5F101PHAFB#10 implements the RL78 CPU core with a 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 ultra-low-speed mode). Its memory map spans 1 MB address space, with 96 KB code flash organized in 1 KB blocks and 8 KB on-chip RAM.

Peripheral integration includes eight 16-bit timers, one 12-bit interval timer, one calendar-capable real-time clock, one watchdog timer, a 10-bit A/D converter with up to 26 input channels and internal temperature sensor, and serial interfaces: up to four UART/LIN channels, up to ten I²C/Simplified I²C channels, and up to eight CSI (SPI-compatible) channels.

Key Specifications

Pinout & Package

Package: 100-pin LFQFP (14 × 14 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 R5F100PHAFB#10, the R5F101PHAFB#10 removes data flash to lower unit cost and simplify flash management, while retaining identical performance, peripherals, and industrial temperature rating; versus R5F101PJAFB#10, it trades flash/RAM capacity for tighter BOM control in stable, feature-complete designs.

Availability

R5F101PHAFB#10 is available at Aetrix Electronics and suitable for industrial motor control, smart energy metering, building automation sensors, and white goods control panels requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.

Supply support for R5F101PHAFB#10 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 product line targets cost-sensitive, ultra-low-power general-purpose embedded applications - emphasizing energy efficiency, integrated peripherals, and rapid development with scalable toolchains and middleware.

FAQ

What is the maximum operating frequency and corresponding performance of the R5F101PHAFB#10?

The R5F101PHAFB#10 operates at up to 32 MHz, delivering 41 DMIPS of processing performance. This is achieved using the high-speed on-chip oscillator with ±1.0% accuracy across 1.8 V to 5.5 V supply and –20°C to +85°C ambient. The RL78 CPU core's 3-stage pipeline ensures consistent instruction throughput for real-time control tasks without external clock sources.

Does the R5F101PHAFB#10 include on-chip data flash memory?

No, the R5F101PHAFB#10 does not include on-chip data flash memory. As indicated by the "101" prefix in the part number per Renesas documentation, this variant provides only code flash (96 KB) and SRAM (8 KB). For applications requiring non-volatile parameter storage, the pin-compatible R5F100PHAFB#10 (with 4 KB data flash) is the direct alternative.

What low-power modes are supported by the R5F101PHAFB#10, and what is the lowest achievable current draw?

The R5F101PHAFB#10 supports HALT, STOP, and SNOOZE modes. In STOP mode with only the real-time clock (RTC) and low-voltage detector (LVD) active, it draws just 0.57 μA - verified under VDD = 1.8 V to 5.5 V and TA = –40°C to +85°C. This enables decade-long battery operation in metering and sensor applications.

Which serial communication interfaces are integrated into the R5F101PHAFB#10?

The R5F101PHAFB#10 integrates three serial interface types: up to four UART/LIN channels (supporting LIN 2.2), up to ten I²C/Simplified I²C channels, and up to eight CSI (SPI-compatible) channels. All share multiplexed pins (e.g., P10–P13), allowing flexible peripheral assignment without requiring additional GPIO resources.

What is the analog capability of the R5F101PHAFB#10, and does it include an internal temperature sensor?

The R5F101PHAFB#10 features a 10-bit A/D converter with up to 26 input channels and an internal reference voltage of 1.45 V. It also includes an integrated temperature sensor usable in HS (high-speed main) mode - enabling board-level thermal monitoring without external components, provided the device is configured to operate in HS mode during measurement.