Renesas R5F104PHAFA#30

Overview

R5F104PHAFA#30 from Renesas is a 48-pin LQFP-0.65 mm pitch, 96 KB flash, 12 KB RAM RL78/G14 16-bit microcontroller operating from 1.6–5.5 V, delivering 44 DMIPS at 32 MHz with ultra-low-power HALT/STOP/SNOOZE modes (66 μA/MHz active, 0.60 μA RTC+LVD), used in battery-powered industrial sensor nodes and smart metering interfaces.

For engineers reviewing the R5F104PHAFA#30 datasheet, R5F104PHAFA#30 pinout, R5F104PHAFA#30 application, or R5F104PHAFA#30 equivalent, this page delivers verified electrical specs, validated I/O mapping, real-world timing and power trade-offs, and direct alternative part guidance for production design-in.

Technical Context

The R5F104PHAFA#30 integrates an RL78 CPU core with 3-stage pipeline, supporting instruction execution times from 0.03125 µs (@32 MHz high-speed oscillator) to 30.5 µs (@32.768 kHz subsystem clock), plus multiply/divide/accumulate instructions and 1 MB address space. It embeds dual-clock domains: high-accuracy ±1.0% on-chip oscillator (selectable 1–64 MHz) and independent 32.768 kHz RTC source.

Peripheral integration includes 10-channel 10-bit A/D converter (8–20 inputs, internal 1.45 V reference), 12-bit interval timer, calendar RTC with alarm/correction, 8-channel 16-bit Timer Array Unit (TAU), 3× UART/LIN, 4× I²C, and 3–8 CSI (SPI-compatible) channels - all managed via Event Link Controller (ELC) for hardware-triggered peripheral chaining without CPU intervention.

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#30, R5F104PGAFA#30 offers scalable memory for evolving firmware, while R5F104LEAFA#30 adds analog output capability - both retain identical timing, power, and peripheral compatibility, enabling drop-in upgrades where flash or DAC functionality is the primary constraint.

Availability

R5F104PHAFA#30 is available at Aetrix Electronics and suitable for smart metering, industrial sensor nodes, and home appliance control requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant manufacturing.

Supply support for R5F104PHAFA#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/G14 product line targets cost-sensitive, ultra-low-power general-purpose applications - balancing performance, energy efficiency, and integrated analog/mixed-signal capability for battery-operated and energy-harvesting systems.

FAQ

What is the maximum operating frequency and corresponding DMIPS rating for the R5F104PHAFA#30?

The R5F104PHAFA#30 achieves a maximum operating frequency of 32 MHz using its high-speed on-chip oscillator, delivering 44 DMIPS of processing performance. This rating is measured under standard conditions (VDD = 3.3 V, TA = 25°C) and reflects sustained integer throughput - not peak burst performance. The RL78 core's 3-stage pipeline and optimized instruction set enable deterministic execution critical for real-time control loops in the R5F104PHAFA#30.

Does the R5F104PHAFA#30 support background data flash rewriting while executing application code?

Yes, the R5F104PHAFA#30 supports Background Operation (BGO) for data flash rewriting. While rewriting its 4 KB data flash memory, the CPU can continue executing instructions from program flash without interruption. This capability is essential for logging sensor data or storing configuration parameters in battery-powered applications where continuous operation must be maintained - a confirmed feature of the R5F104PHAFA#30 per Renesas documentation.

What are the key power-saving modes available on the R5F104PHAFA#30, and what is the lowest current consumption achievable?

The R5F104PHAFA#30 offers HALT, STOP, and SNOOZE low-power modes. In STOP mode with only RTC and LVD active, it consumes 0.60 μA (typical) at VDD = 3.0 V and TA = 25°C. HALT mode draws 66 μA/MHz, scaling linearly with clock frequency. SNOOZE enables rapid wake-up (< 3.5 µs) from low-power states while retaining peripheral operation - all verified for the R5F104PHAFA#30 in the RL78/G14 datasheet Rev. 3.70.

How many analog input channels does the R5F104PHAFA#30 support, and what ADC resolution and reference options are available?

The R5F104PHAFA#30 integrates a 10-bit successive-approximation ADC with up to 20 analog input channels (ANI0–ANI19). It supports internal 1.45 V reference voltage and external reference inputs (AVREFP/AVREFM), enabling ratiometric measurements. The ADC operates across the full 1.6–5.5 V supply range and includes an integrated temperature sensor - specifications confirmed for the R5F104PHAFA#30 in the RL78/G14 functional outline.

Is the R5F104PHAFA#30 pin-compatible with other RL78/G14 variants in the same 48-pin LQFP-0.65 mm package?

Yes, the R5F104PHAFA#30 is fully pin-compatible with all RL78/G14 devices in the 48-pin LQFP-0.65 mm package (e.g., R5F104PGAFA#30, R5F104LEAFA#30), sharing identical pin functions, electrical characteristics, and mechanical footprint. This allows direct substitution within the same package family for memory or peripheral upgrades - a documented compatibility confirmed in Renesas' RL78/G14 ordering information tables.