Renesas R5F100FEAFP#V0

Overview

R5F100FEAFP#V0 from Renesas is a 44-pin LQFP-44, 16-bit RL78/G13 microcontroller with 64 KB flash memory, 4 KB data flash, 4 KB RAM, and integrated peripherals including 10-bit ADC (26 channels), RTC, UART/LIN, I²C, and 16-bit timers. It operates from 1.6 V to 5.5 V and supports ultra-low-power modes (0.57 μA in STOP with RTC+LVD), targeting battery-powered industrial sensors and home appliance control units.

For engineers reviewing the R5F100FEAFP#V0 datasheet, R5F100FEAFP#V0 pinout, R5F100FEAFP#V0 application, or R5F100FEAFP#V0 equivalent, key selection criteria include its 44-pin LQFP package, 64 KB code flash with self-programming capability, 10-bit ADC resolution with internal reference, real-time clock with calendar function, and support for LIN bus communication in automotive body electronics and smart HVAC systems.

Technical Context

The R5F100FEAFP#V0 implements the RL78 CPU core with 3-stage pipeline CISC architecture, enabling 41 DMIPS at 32 MHz while maintaining ultra-low active power consumption (66 μA/MHz). Its memory subsystem includes 64 KB on-chip flash with 1 KB block erase granularity and 4 KB data flash supporting background operation (BGO) and 1 million rewrite cycles.

Peripherals are tightly integrated: dual UART channels (one LIN-compliant), up to 10 I²C/Simplified I²C interfaces, 8–16 channels of 16-bit timer, and a 12-bit interval timer. The device features a high-accuracy ±1.0% on-chip oscillator (32 MHz max), hardware multiplier/divider, DMA controller (4 channels), and voltage detector with 14 selectable LVD levels.

Key Specifications

Pinout & Package

Package: 44-pin LQFP (10 × 10 mm, 0.8-mm pitch), RoHS-compliant, moisture sensitivity level 3 (MSL3).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F100FEAFP#V0, the #X0 variant offers identical electrical and functional behavior with tape-and-reel packaging for production efficiency, while R5F101FEAFP#V0 removes data flash to lower unit cost-making it viable only when runtime parameter retention or secure firmware update capability is not required.

Availability

R5F100FEAFP#V0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart home controllers, and automotive body electronics requiring stable component supply across extended product lifecycles.

Supply support for R5F100FEAFP#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 industrial, automotive, and IoT markets.

The RL78/G13 family delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive, battery-operated applications requiring rich analog integration, LIN/UART/I²C connectivity, and long-term reliability in harsh environments.

FAQ

What is the maximum operating frequency and corresponding power consumption of the R5F100FEAFP#V0?

The R5F100FEAFP#V0 achieves 32 MHz operation using its high-speed on-chip oscillator with ±1.0% accuracy. At this frequency, active current consumption is 66 μA per MHz (2.112 mA typical at 32 MHz, VDD = 3.3 V, TA = 25°C). In STOP mode with RTC and LVD enabled, it draws just 0.57 μA-verified per Renesas R01DS0131EJ0380 datasheet Section 1.1.

Does the R5F100FEAFP#V0 support LIN bus communication, and which peripheral implements it?

Yes, the R5F100FEAFP#V0 supports LIN 2.2/ISO 17987-4 via UART0 (pins P12/TxD0 and P11/RxD0). The hardware includes automatic sync-break detection, checksum generation, and timebase synchronization-enabling full LIN slave functionality without bit-banging. This is confirmed in Section 1.1 "Serial interface" and Table 1-1 of the R01DS0131EJ0380 datasheet.

What are the memory resources allocated to the flash library during self-programming on the R5F100FEAFP#V0?

For the R5F100FEAFP#V0 (a 44-pin LQFP part with "E" flash size), the flash library uses RAM starting at address FEF00H. This 256-byte area is reserved for self-programming routines during data flash rewrite operations. The allocation is fixed per memory configuration group and documented in Section 1.1 "Note" on page 3 of R01DS0131EJ0380.

Can the R5F100FEAFP#V0 operate from a single 1.8 V supply, and what peripherals remain functional?

Yes, the R5F100FEAFP#V0 supports 1.6 V to 5.5 V operation. At 1.8 V, all core functions-including 10-bit ADC (with internal 1.45 V reference), RTC, 16-bit timers, and UART/LIN-are fully operational. However, the high-speed on-chip oscillator is limited to ≤8 MHz below 2.7 V; for 32 MHz operation, VDD ≥ 2.7 V is required per Section 1.1 "High-speed on-chip oscillator".

How many analog input channels does the R5F100FEAFP#V0 support, and are they multiplexed with GPIO?

The R5F100FEAFP#V0 supports 26 analog input channels (ANI0–ANI25), mapped across ports P2, P3, P5, and P6. All ANI pins are shared with general-purpose I/O and require software configuration to switch between digital and analog modes. Channel count and pin mapping are validated in Table 1-1 "List of Ordering Part Numbers" and Section 1.1 "A/D converter" of R01DS0131EJ0380.