Renesas R5F101JEDFA#30

Overview

R5F101JEDFA#30 from Renesas is a 52-pin LQFP-0.65mm microcontroller in the RL78/G13 family, featuring 64 KB flash memory, 4 KB data flash, 4 KB RAM, 10-bit ADC (16 channels), and real-time clock with calendar function - deployed in industrial sensor nodes requiring low-power operation across -40°C to +85°C.

For engineers reviewing the R5F101JEDFA#30 datasheet, R5F101JEDFA#30 pinout, R5F101JEDFA#30 application, or R5F101JEDFA#30 equivalent, key selection criteria include its 64 KB code flash with self-programming, 1.6–5.5 V supply range, ultra-low power STOP mode (0.57 μA), 32 MHz max CPU speed, and integrated LIN-capable UART for automotive body electronics and smart metering interfaces.

Technical Context

The R5F101JEDFA#30 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). It integrates a 12-bit interval timer, watchdog timer with dedicated low-speed oscillator, and background operation (BGO) for concurrent data flash rewriting and program execution.

Its peripheral set includes up to 16-channel 10-bit ADC with internal 1.45 V reference and temperature sensor, 8× 16-bit timers, 3× I²C/Simplified I²C channels, 2× UART/LIN interfaces, and 2-channel DMA - all operating within a single 1.6–5.5 V supply without external level shifters.

Key Specifications

Pinout & Package

Package: 52-pin LQFP, 10 × 10 mm, 0.65 mm pitch (JEDEC MS-026AC), RoHS-compliant, industrial-grade thermal profile (-40°C to +85°C).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F101JEDFA#50 and R5F101JEDFA#10, the R5F101JEDFA#30 offers identical core functionality and electrical behavior but is optimized for manual handling and evaluation due to its tray packaging - making it ideal for design-in validation and low-volume pilot runs where tape-and-reel logistics are unnecessary.

Availability

R5F101JEDFA#30 is available at Aetrix Electronics and suitable for smart metering, industrial sensor nodes, automotive body electronics, and home appliance control requiring stable component supply and long-term industrial qualification.

Supply support for R5F101JEDFA#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 delivering microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.

The RL78/G13 product line targets cost-sensitive, ultra-low-power general-purpose embedded applications - emphasizing energy efficiency, integrated peripherals, and rapid development with scalable memory and pin counts.

FAQ

What is the maximum operating frequency of the R5F101JEDFA#30?

The R5F101JEDFA#30 supports a maximum CPU operating frequency of 32 MHz using the high-speed on-chip oscillator, delivering 41 DMIPS performance. This speed is achievable across the full 1.6–5.5 V supply range and -40°C to +85°C ambient temperature, with oscillator accuracy of ±1.0% under specified conditions. The R5F101JEDFA#30 also supports lower-speed subsystem clocks down to 32.768 kHz for RTC and ultra-low-power modes.

Does the R5F101JEDFA#30 include data flash memory?

Yes, the R5F101JEDFA#30 includes 4 KB of on-chip data flash memory with 1,000,000 write/erase cycles (typical), operating at VDD = 1.8–5.5 V. It supports background operation (BGO), allowing program execution from code flash while rewriting data flash - essential for nonvolatile parameter storage in field-upgradable devices. The R5F101JEDFA#30 uses this capability for calibration data logging and configuration retention without halting application code.

What package type and pin count does the R5F101JEDFA#30 use?

The R5F101JEDFA#30 uses a 52-pin LQFP package with 10 × 10 mm body size and 0.65 mm lead pitch (JEDEC MS-026AC compliant). This package provides 42 general-purpose I/O pins, including 16 analog input channels, and supports industrial temperature operation from -40°C to +85°C. The R5F101JEDFA#30's pin layout is compatible with Renesas' standard RL78/G13 52-pin footprint, enabling drop-in replacement within the same family variants.

Can the R5F101JEDFA#30 operate from a single 3.3 V supply?

Yes, the R5F101JEDFA#30 operates fully across 1.6 V to 5.5 V, making 3.3 V a supported and commonly used supply voltage. At 3.3 V, it maintains full 32 MHz operation, all peripheral functionality (including ADC, UART, I²C, timers), and ultra-low-power modes. Its I/O structure supports different-potential interfacing, allowing direct connection to 1.8 V or 2.5 V peripherals without level shifters - a key advantage in mixed-voltage embedded systems using the R5F101JEDFA#30.

Does the R5F101JEDFA#30 support LIN bus communication?

Yes, the R5F101JEDFA#30 supports LIN 2.2 communication through its UART0 peripheral, which includes hardware features such as automatic sync-break detection, checksum generation, and configurable baud rates down to 1.2 kbps. This enables the R5F101JEDFA#30 to serve as a LIN slave node in automotive body electronics - eliminating the need for an external LIN transceiver in many implementations. The UART is pin-multiplexed on P11, supporting both standard UART and LIN protocol modes.