Renesas R5F100JDAFA#V0

Overview

R5F100JDAFA#V0 from Renesas is a 52-pin LQFP-0.65mm, industrial-grade RL78/G13 16-bit MCU with 128 KB flash, 8 KB data flash, 12 KB RAM, and true low-power operation (66 μA/MHz active, 0.57 μA RTC+LVD). It integrates 16-bit timers (12 channels), 10-bit ADC (24 channels), UART/SPI/I²C interfaces, and real-time clock - deployed in battery-powered industrial sensors and motor control edge nodes.

For engineers reviewing the R5F100JDAFA#V0 datasheet, R5F100JDAFA#V0 pinout, R5F100JDAFA#V0 application, or R5F100JDAFA#V0 equivalent, key selection criteria include its 52-pin LQFP package, -40°C to +85°C industrial temperature grade, integrated data flash with 1M rewrite cycles, and support for SNOOZE mode wake-up via serial interface events.

Technical Context

The R5F100JDAFA#V0 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 μs (32 MHz HS mode) to 30.5 μs (32.768 kHz subsystem clock). Its memory subsystem includes 128 KB code flash (1 KB block size), 8 KB background-operable data flash, and 12 KB on-chip RAM - all accessible under single 1.6–5.5 V supply.

Power management includes HALT/STOP/SNOOZE modes, on-chip POR and 14-level LVD, and DMA controller (4 channels) enabling 2-clock transfers between SFR and RAM. Peripheral integration covers 12× 16-bit timers, calendar RTC with alarm/correction, and 24-channel 10-bit ADC with internal 1.45 V reference and temperature sensor.

Key Specifications

Pinout & Package

Package: 52-pin LQFP, 10 mm × 10 mm, 0.65 mm pitch, exposed pad not present, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F100JDAFA#V0, R5F100JCAFA#V0 reduces cost and power in memory-constrained designs, while R5F100JEAFA#V0 enables scalable firmware architecture and longer-term field upgradeability - both retain identical peripheral sets, timing behavior, and industrial temperature rating.

Availability

R5F100JDAFA#V0 is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, energy metering interfaces, and programmable logic controller I/O modules requiring stable component supply across extended product lifecycles.

Supply support for R5F100JDAFA#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 delivering microcontrollers, analog, power, and SoC solutions for automotive, industrial, 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 reliability, code density, and mixed-signal integration are critical.

FAQ

What is the maximum operating frequency and corresponding performance of the R5F100JDAFA#V0?

The R5F100JDAFA#V0 operates up to 32 MHz using its high-speed on-chip oscillator, delivering 41 DMIPS of processing performance. Its minimum instruction execution time is 0.03125 μs in HS mode, and it supports dynamic clock switching down to 32.768 kHz for ultra-low-power RTC operation. This dual-speed capability enables both high-throughput control loops and extended battery life in the same design.

Does the R5F100JDAFA#V0 support in-system programming and secure flash protection?

Yes, the R5F100JDAFA#V0 supports full in-system programming via on-chip debug interface and includes flash shield window and block erase prohibition features. These security mechanisms prevent unauthorized read-out or modification of code flash contents, making R5F100JDAFA#V0 suitable for applications requiring IP protection and firmware integrity assurance.

How many analog input channels does the R5F100JDAFA#V0 support, and what reference options are available?

The R5F100JDAFA#V0 supports 24 analog input channels. It provides flexible reference options including external AVREFP/AVREFM pins, internal 1.45 V bandgap reference (selectable only in HS mode), and VDD as reference. The internal temperature sensor is also routed to the ADC, enabling system-level thermal monitoring without external components.

What low-power modes are available on the R5F100JDAFA#V0, and what peripherals remain active in each?

The R5F100JDAFA#V0 offers HALT, STOP, and SNOOZE modes. In STOP mode (0.57 μA), only RTC and LVD remain active; in SNOOZE mode, selected peripherals like UART or CSI can wake the core while main clocks are gated. HALT mode retains full register state with CPU halted but peripherals running - ideal for interrupt-latency-critical applications.

Is the R5F100JDAFA#V0 pin-compatible with other RL78/G13 variants in the same package?

Yes, all RL78/G13 devices in the 52-pin LQFP-0.65mm package (e.g., R5F100JCAFA#V0, R5F100JEAFA#V0) share identical pinouts and electrical characteristics. This enables drop-in memory scalability - designers can migrate between 96 KB, 128 KB, and 192 KB flash variants without PCB revision, simplifying BOM management and platform reuse.