Renesas R5F100JGGFA#V0

Overview

R5F100JGGFA#V0 from Renesas is a 52-pin LQFP-0.65mm 8-bit RL78/G13 microcontroller with 256 KB flash, 8 KB data flash, 20 KB RAM, 10-bit ADC (26 channels), and real-time clock - deployed in battery-powered industrial sensors and low-power HMI control units.

For engineers reviewing the R5F100JGGFA#V0 datasheet, R5F100JGGFA#V0 pinout, R5F100JGGFA#V0 application, or R5F100JGGFA#V0 equivalent, key selection criteria include ultra-low power operation (66 μA/MHz active, 0.57 μA RTC+LVD mode), integrated LIN-capable UARTs, and 52-pin LQFP package compatibility with space-constrained industrial PCB layouts.

Technical Context

The R5F100JGGFA#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). It integrates dual voltage domains (1.6–5.5 V operation) and hardware-accelerated peripherals including DMA (4-channel), multiplier/divider, and background data flash rewriting (BGO).

Its timing subsystem includes one 12-bit interval timer, one calendar-based real-time clock (RTC) with alarm and correction, and eight 16-bit timers - all synchronized to configurable on-chip oscillators (32 MHz ±1.0% accuracy, 1–32 MHz selectable). Power management features HALT, STOP, and SNOOZE modes with independent peripheral clock gating.

Key Specifications

Pinout & Package

Package: 52-pin LQFP, 10 × 10 mm, 0.65 mm pitch, exposed pad (PLQP0052JA-A / PLQP0052JD-B), RoHS-compliant, moisture sensitivity level 3.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F100JGGFA#V0, R5F100JGAFA#V0 trades flash/RAM capacity for lower unit cost in fixed-function designs, while R5F101JGGFA#V0 removes data flash entirely - making it appropriate for static firmware deployments where runtime parameter persistence is handled externally.

Availability

R5F100JGGFA#V0 is available at Aetrix Electronics and suitable for smart metering, industrial HMI, and wireless sensor node designs requiring stable component supply, long-term industrial temperature support, and verified low-power performance.

Supply support for R5F100JGGFA#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 specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.

The RL78/G13 family delivers true low-power embedded control for industrial and consumer applications - optimized for energy efficiency, code density, and peripheral integration in resource-constrained systems.

FAQ

What is the maximum operating frequency of the R5F100JGGFA#V0?

The R5F100JGGFA#V0 operates at up to 32 MHz using its high-speed on-chip oscillator, delivering 41 DMIPS performance. Its minimum instruction execution time is 0.03125 μs under this condition, and the oscillator maintains ±1.0% accuracy across 1.8–5.5 V and −20 to +85°C ambient conditions - confirmed in the R01DS0131EJ0380 datasheet Section 1.1.

Does the R5F100JGGFA#V0 support LIN bus communication?

Yes, the R5F100JGGFA#V0 supports LIN 2.2 communication via UART0, which includes dedicated hardware features such as automatic sync-break detection, LIN-specific baud rate generation, and timeout handling. This capability is documented in the "Serial Interface" section of the R01DS0131EJ0380 datasheet and applies specifically to UART channels in RL78/G13 devices with data flash (e.g., R5F100x series).

What is the purpose of the FAF00H RAM address in the R5F100JGGFA#V0?

The FAF00H address marks the start of a dedicated RAM area used by the flash self-programming library for data flash rewriting operations in the R5F100JGGFA#V0. As specified in the RL78 Family Flash Self-Programming Library documentation (R20UT2944), this 256-byte region is reserved exclusively for flash library runtime variables and must not be allocated for application use - ensuring reliable background data flash updates.

How many ADC channels does the R5F100JGGFA#V0 support, and what is their resolution?

The R5F100JGGFA#V0 integrates a 10-bit successive approximation ADC with up to 26 analog input channels (ANI0–ANI25), supporting both single-ended and differential measurement modes. It includes an internal 1.45 V reference voltage and a calibrated temperature sensor - all functional across the full 1.6–5.5 V supply range, as detailed in Section 1.1 "A/D converter" of the R01DS0131EJ0380 datasheet.

Is the R5F100JGGFA#V0 qualified for industrial temperature operation?

Yes, the R5F100JGGFA#V0 carries the 'G' suffix indicating Industrial grade qualification with guaranteed operation from −40°C to +105°C ambient temperature. This rating is explicitly defined in Figure 1-1 ("Part Number, Memory Size, and Package of RL78/G13") and confirmed in Table 1-1 of the R01DS0131EJ0380 datasheet - making it suitable for demanding environments like factory automation and outdoor metering.