Renesas R5F104PHAFB#V0

Overview

R5F104PHAFB#V0 from Renesas is a 100-pin LFQFP, 0.5 mm pitch, industrial-grade (G) 16-bit RL78/G14 microcontroller with 128 KB flash, 8 KB data flash, 16 KB RAM, and operation from -40°C to +105°C. It integrates a 32 MHz RL78 CPU core delivering 44 DMIPS, ultra-low power consumption (66 μA/MHz active, 0.60 μA in RTC+LVD mode), and peripherals including 10-channel 10-bit ADC, dual 8-bit DACs, real-time clock, and multiple serial interfaces (UART/LIN, I²C, CSI). It targets battery-powered industrial control nodes requiring long runtime and robust timing.

For engineers reviewing the R5F104PHAFB#V0 datasheet, R5F104PHAFB#V0 pinout, R5F104PHAFB#V0 application, or R5F104PHAFB#V0 equivalent, key selection criteria include its 100-pin LFQFP-0.5 mm package, G-grade temperature rating, integrated LIN-capable UARTs for automotive body electronics, hardware DTC/ELC for deterministic low-CPU-load peripheral coordination, and on-chip debug with flash shield window security.

Technical Context

The R5F104PHAFB#V0 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and configurable instruction cycle time (0.03125 μs at 32 MHz to 30.5 μs at 32.768 kHz). Its power management includes HALT, STOP, and SNOOZE modes, plus an on-chip LVD with 14 selectable voltage thresholds and POR circuit.

Peripheral integration centers on event-driven operation: the Event Link Controller (ELC) supports up to 26 event sources linked directly to peripherals without CPU intervention, while the Data Transfer Controller (DTC) enables block, repeat, and chain transfers triggered by interrupts - both critical for deterministic sensor acquisition and actuator response in closed-loop industrial systems.

Key Specifications

Pinout & Package

Package: 100-pin LFQFP, 14 × 14 mm, 0.5 mm pitch (Renesas code PLQP0100KE-A); 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 R5F104PGAFB#V0 and R5F104PJAFB#V0, the R5F104PHAFB#V0 delivers optimal balance of memory resources (128 KB flash / 16 KB RAM) and industrial temperature resilience (-40°C to +105°C) for mid-complexity embedded control tasks - avoiding under-provisioning of code space while maintaining cost efficiency over higher-memory variants.

Availability

R5F104PHAFB#V0 is available at Aetrix Electronics and suitable for industrial motor control nodes, smart building HVAC sensor hubs, PLC I/O modules, medical infusion pump controllers, and programmable power supplies requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for R5F104PHAFB#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, power, and SoC solutions for automotive, industrial, and IoT markets.

The RL78/G14 product line delivers true low-power 16-bit MCUs optimized for cost-sensitive, battery-operated, and thermally demanding industrial applications - emphasizing ultra-low active/sleep current, integrated analog peripherals, and hardware acceleration for deterministic real-time operation.

FAQ

What is the maximum operating frequency and corresponding DMIPS rating for the R5F104PHAFB#V0?

The R5F104PHAFB#V0 operates at up to 32 MHz using its high-speed on-chip oscillator, achieving 44 DMIPS performance. This rating is measured under standard conditions (VDD = 2.7–5.5 V, TA = -40°C to +105°C) and reflects integer instruction throughput - not floating-point or synthetic benchmarks. The RL78 core's 3-stage pipeline and efficient CISC architecture enable this performance at low power.

Does the R5F104PHAFB#V0 support LIN bus communication, and which UART channels provide it?

Yes, the R5F104PHAFB#V0 supports LIN 2.2 and SAE J2602 protocols via its UART peripherals. Specifically, UART0, UART1, and UART2 all include hardware LIN functionality - including automatic sync-break detection, checksum generation (classic and enhanced), and wakeup signal handling - enabling robust, low-overhead implementation of LIN slave or master nodes without software bit-banging.

What are the flash memory configuration details - block size, erase granularity, and security features - for the R5F104PHAFB#V0?

The R5F104PHAFB#V0 features 128 KB of code flash organized in 1 KB blocks. Erase operations occur at the block level only; individual sector or byte erasure is not supported. Security includes flash shield window protection (configurable address ranges), prohibition of block erase/rewrite for protected zones, and lock bits to prevent unauthorized readout - all enforced by on-chip hardware without software dependency.

How many analog-to-digital converter (ADC) channels does the R5F104PHAFB#V0 support, and what reference options are available?

The R5F104PHAFB#V0 integrates a 10-bit successive-approximation ADC with up to 20 analog input channels. Reference voltage options include external AVREFP/AVREFM pins, internal 1.45 V bandgap reference, and VDD. The ADC supports scan mode, group conversion, and hardware trigger sources (e.g., timer overflow or ELC events), enabling synchronized multi-channel acquisition for motor control or sensor fusion.

What is the purpose of the REGC pin on the R5F104PHAFB#V0, and how must it be connected?

The REGC pin on the R5F104PHAFB#V0 connects to the internal voltage regulator's stabilization capacitor. It must be tied to VSS via a 0.47 μF to 1.0 μF ceramic capacitor placed as close as possible to the pin. Failure to connect REGC correctly causes unstable internal regulation, leading to erratic reset behavior, flash programming errors, or failure to enter low-power modes - per Renesas design requirements in the R01DS0053EJ0340 datasheet.