Renesas R5F104PHAFA#10

Overview

R5F104PHAFA#10 from Renesas is a 48-pin LQFP-0.65 mm pitch, 96 KB flash, 12 KB RAM RL78/G14 16-bit microcontroller with ultra-low power consumption (66 μA/MHz), integrated 10-bit ADC (16 channels), RTC, and dual UART/SPI/I²C interfaces - deployed in industrial sensor nodes and battery-powered control modules.

For engineers reviewing the R5F104PHAFA#10 datasheet, R5F104PHAFA#10 pinout, R5F104PHAFA#10 application, or R5F104PHAFA#10 equivalent, key selection criteria include its -40°C to +105°C industrial temperature grade (G), 1.6–5.5 V wide supply range, and on-chip debug support for rapid firmware validation in resource-constrained embedded designs.

Technical Context

The R5F104PHAFA#10 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 µs (@32 MHz) to 30.5 µs (@32.768 kHz). It integrates a Data Transfer Controller (DTC) and Event Link Controller (ELC) for autonomous peripheral coordination without CPU intervention.

Its mixed-signal subsystem includes an 8/10-bit ADC with internal 1.45 V reference and temperature sensor, dual 8-bit D/A converters (0–VDD output), and two analog comparators with window mode - all operating across the full 1.6–5.5 V supply range and qualified for industrial ambient temperatures up to +105°C.

Key Specifications

Pinout & Package

Package: 48-pin LQFP, 10 × 10 mm body, 0.65 mm pitch, exposed pad not present (standard LQFP).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F104PHAFA#10, R5F104PGAFA#10 trades memory headroom for cost reduction in fixed-function controllers, while R5F104LHAFA#10 adds buffer for OTA updates and multi-protocol gateways - both retain identical thermal, electrical, and mechanical compatibility.

Availability

R5F104PHAFA#10 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart thermostats, and PLC I/O modules requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for R5F104PHAFA#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/G14 product line delivers true low-power 16-bit MCUs optimized for cost-sensitive industrial and consumer control applications - emphasizing energy efficiency, integrated analog, and simplified development.

FAQ

What is the maximum operating frequency and corresponding power consumption of the R5F104PHAFA#10?

The R5F104PHAFA#10 operates at up to 32 MHz with a typical active current of 66 μA per MHz. At full speed, this yields ~2.1 mA total active current (VDD = 3.3 V, TA = 25°C), verified in the RL78/G14 datasheet Section 18.2. Its high-speed on-chip oscillator achieves ±1.0% accuracy across 1.8–5.5 V and -20 to +85°C - eliminating need for external crystal in many timing-critical applications.

Does the R5F104PHAFA#10 support in-system programming and secure flash protection?

Yes, the R5F104PHAFA#10 supports self-programming of code and data flash memory with boot swapping and flash shield window features. It includes block-erase prohibition and write-protection mechanisms to prevent unauthorized firmware modification - critical for industrial deployments where firmware integrity must be assured across 10+ year product lifecycles.

What are the analog capabilities of the R5F104PHAFA#10, and how are they calibrated?

The R5F104PHAFA#10 integrates a 10-bit ADC with 16 input channels, internal 1.45 V reference voltage, and factory-calibrated temperature sensor. Its 8-bit D/A converter provides two independent analog outputs (0–VDD range) with real-time update capability. All analog blocks operate across the full 1.6–5.5 V supply range and are characterized over -40°C to +105°C per Renesas datasheet Section 15.

How does the Event Link Controller (ELC) enhance real-time performance in the R5F104PHAFA#10?

The ELC in the R5F104PHAFA#10 enables direct hardware linking of 19–26 peripheral events - such as ADC end-of-conversion triggering a DTC transfer to RAM - without CPU involvement. This reduces interrupt latency to sub-microsecond levels and frees the CPU for higher-layer tasks, making it ideal for deterministic control loops in motor drives or power supplies.

Is the R5F104PHAFA#10 pin-compatible with other RL78/G14 variants in the same package?

Yes, all RL78/G14 devices in the 48-pin LQFP-0.65 mm package (including R5F104PHAFA#10, R5F104PGAFA#10, and R5F104LHAFA#10) share identical pinouts and electrical characteristics. This allows drop-in replacement during design iteration or production ramp - provided firmware accommodates differences in flash size, RAM, and peripheral enablement per device variant.