Renesas R5F104JDGFA#30

Overview

R5F104JDGFA#30 from Renesas is a 52-pin LQFP-0.65 mm pitch, industrial-grade (G) RL78/G14 16-bit MCU with 256 KB flash, 8 KB data flash, 20 KB RAM, and -40°C to +105°C operation. It integrates a 32 MHz RL78 CPU core (44 DMIPS), 12-bit RTC, 10-bit 16-channel ADC, dual 8-bit DACs, and multiple serial interfaces including UART/LIN, I²C, and CSI for embedded control in HVAC, motor drives, and smart sensors.

For engineers reviewing the R5F104JDGFA#30 datasheet, R5F104JDGFA#30 pinout, R5F104JDGFA#30 application, or R5F104JDGFA#30 equivalent, this page delivers verified technical context, package mapping, real-world use cases, and validated alternative options - all grounded in Renesas' official RL78/G14 documentation (R01DS0053EJ0370 Rev. 3.70).

Technical Context

The R5F104JDGFA#30 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and configurable instruction timing (0.03125 µs @ 32 MHz to 30.5 µs @ 32.768 kHz). It supports true low-power operation: 66 µA/MHz active current and 0.60 µA in RTC+LVD-only STOP mode.

Peripheral integration includes Event Link Controller (ELC) for hardware-triggered peripheral chaining, Data Transfer Controller (DTC) with block/chain transfer modes, and background operation (BGO) for concurrent code execution during data flash rewriting - enabling deterministic real-time response in safety-critical firmware updates.

Key Specifications

Pinout & Package

Package: 52-pin LQFP, 10 × 10 mm body, 0.65 mm pitch, exposed pad not applicable (plastic LQFP).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F104JDGFA#30, the R5F104JHGFA#30 trades extended temperature range for lower unit cost, while the R5F104JEGFA#30 reduces flash capacity to lower silicon area - both retain identical peripheral sets, pinout, and software compatibility for drop-in migration paths.

Availability

R5F104JDGFA#30 is available at Aetrix Electronics and suitable for industrial motor control, smart HVAC systems, and programmable power supplies requiring stable component supply across long product lifecycles.

Supply support for R5F104JDGFA#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, and power solutions for automotive, industrial, and IoT markets.

The RL78/G14 family targets cost-sensitive, ultra-low-power general-purpose embedded applications - delivering optimized performance-per-milliwatt for battery-operated and energy-conscious industrial controls.

FAQ

What is the maximum operating frequency and corresponding DMIPS rating for the R5F104JDGFA#30?

The R5F104JDGFA#30 operates at up to 32 MHz with its on-chip high-speed oscillator, delivering 44 DMIPS of processing performance. This benchmark is measured per the EEMBC CoreMark methodology and reflects sustained execution speed under typical code mix conditions - not peak burst capability. The RL78 core's 3-stage pipeline and multiply-accumulate instructions enable deterministic real-time response in motor control and sensor fusion applications.

Does the R5F104JDGFA#30 support hardware-based debugging and in-system programming?

Yes, the R5F104JDGFA#30 includes full on-chip debug functionality compatible with Renesas E2 emulator and standard SWD/JTAG interfaces. It supports self-programming with boot swapping and flash shield window protection - enabling secure firmware updates in the field without external programmers. Debug access remains available even when code flash security bits are set, provided the correct unlock sequence is used.

What are the key low-power features that distinguish the R5F104JDGFA#30 in battery-powered applications?

The R5F104JDGFA#30 achieves 0.60 µA in STOP mode with only RTC and LVD active - verified at VDD = 3.3 V and TA = 25°C. Its SNOOZE mode enables ultra-fast wake-up (< 4 µs) from deep sleep while retaining peripheral operation, and HALT mode draws just 0.23 µA. These modes, combined with programmable voltage detector thresholds and automatic clock gating, make the R5F104JDGFA#30 ideal for multi-year battery life in wireless sensor nodes and portable medical devices.

Can the R5F104JDGFA#30 interface directly with common industrial sensors and actuators?

Yes, the R5F104JDGFA#30 integrates 10-bit 16-channel ADC with internal 1.45 V reference and temperature sensor, supporting direct connection to thermistors, RTDs, and analog pressure transducers. Its 3× UART/LIN interfaces enable native communication with LIN bus actuators, while 4–10× I²C channels support standard digital sensors (e.g., Bosch BME280, ST LIS2DH). N-ch open-drain I/Os tolerate 6 V, allowing direct interfacing with 5 V logic and discrete MOSFET gate drivers.

How does the Event Link Controller (ELC) improve real-time determinism in the R5F104JDGFA#30?

The ELC in the R5F104JDGFA#30 enables hardware-level chaining of up to 26 peripheral events - such as ADC end-of-conversion triggering a DMA transfer, which then triggers a timer compare match to toggle a PWM output. This eliminates CPU intervention and interrupt latency, achieving sub-microsecond timing precision for closed-loop control. In motor drive applications, ELC synchronizes ADC sampling, PWM update, and fault detection without software overhead - critical for field-oriented control stability.