Renesas R5F100BAANA#20

Overview

R5F100BAANA#20 from Renesas is a 32-pin RL78/G13 16-bit microcontroller with 16 KB flash memory, 2 KB RAM, and 4 KB data flash, operating from 1.6 V to 5.5 V across -40°C to +85°C. It delivers 41 DMIPS at 32 MHz, features ultra-low-power modes (66 μA/MHz active, 0.57 μA RTC+LVD), and integrates 10-bit ADC (6 channels), RTC, UART, I²C, and 8×16-bit timers - used in battery-powered industrial sensors and smart metering endpoints.

For engineers reviewing the R5F100BAANA#20 datasheet, R5F100BAANA#20 pinout, R5F100BAANA#20 application, or R5F100BAANA#20 equivalent, key selection criteria include its HWQFN-32 package, integrated data flash with 1M rewrite cycles, real-time clock with calendar function, and support for LIN-bus via UART.

Technical Context

The R5F100BAANA#20 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, enabling instruction execution times from 0.03125 μs (32 MHz high-speed mode) to 30.5 μs (32.768 kHz subsystem clock). Its memory subsystem includes 16 KB code flash (1 KB block size), 4 KB data flash with background operation (BGO), and 2 KB on-chip RAM.

Power management includes HALT, STOP, and SNOOZE low-power modes, on-chip POR and LVD (14-level selectable), and a high-accuracy ±1.0% on-chip oscillator (32 MHz max). Peripheral integration covers 2×UART (LIN-capable), 3×I²C, 2×CSI, 8×16-bit timers, 1×12-bit interval timer, and 1×RTC with alarm and clock correction.

Key Specifications

Pinout & Package

Package: 32-pin HWQFN (5 × 5 mm, 0.5-mm pitch), moisture-sensitive level 3, RoHS-compliant, thermal pad exposed on underside for enhanced heat dissipation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F100BAANA#20, R5F101BAANA#20 removes data flash to reduce cost and die size while retaining full functional compatibility for code-only use cases; R5F104BAANA#20 adds memory headroom and ADC capability for next-generation designs without changing PCB layout.

Availability

R5F100BAANA#20 is available at Aetrix Electronics and suitable for smart metering, industrial sensor nodes, and home appliance control requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.

Supply support for R5F100BAANA#20 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 product line targets cost-sensitive, ultra-low-power general-purpose embedded applications - emphasizing energy efficiency, integrated peripherals, and rapid development with scalable toolchains.

FAQ

What is the maximum operating frequency and performance of the R5F100BAANA#20?

The R5F100BAANA#20 operates up to 32 MHz and delivers 41 DMIPS. Its RL78 CPU core achieves a minimum instruction execution time of 0.03125 μs in high-speed mode using the on-chip oscillator. This performance level supports real-time control loops, sensor fusion, and communication stack processing in resource-constrained edge devices. The R5F100BAANA#20 maintains consistent timing across its 1.6 V to 5.5 V supply range.

Does the R5F100BAANA#20 support in-system programming and secure firmware updates?

Yes, the R5F100BAANA#20 supports full in-system programming via on-chip debug interface and includes boot swap functionality for fail-safe firmware updates. Its flash shield window feature prevents unauthorized access to protected memory regions during programming. The R5F100BAANA#20 also allows block-wise erase prohibition to safeguard critical bootloader code - essential for certified industrial and medical deployments.

What low-power modes does the R5F100BAANA#20 offer, and what are their typical current draws?

The R5F100BAANA#20 provides HALT (66 μA/MHz), STOP (0.57 μA with RTC and LVD active), and SNOOZE modes. In STOP mode, it maintains real-time clock operation and voltage monitoring while drawing less than 1 μA - enabling decade-long battery life in metering and environmental monitoring. The R5F100BAANA#20 enters and exits these modes in microseconds without external components.

Can the R5F100BAANA#20 interface directly with 1.8 V or 2.5 V peripherals?

Yes, the R5F100BAANA#20 supports different-potential interfaces: its I/O ports can be configured for 1.8 V, 2.5 V, or 3 V logic levels without level shifters. Input buffers accept TTL thresholds, and N-ch open-drain outputs tolerate up to 6 V. This capability allows direct connection to low-voltage sensors, displays, and communication ICs - reducing BOM count and board area in mixed-voltage systems using the R5F100BAANA#20.

What is the ADC configuration of the R5F100BAANA#20, and does it include calibration support?

The R5F100BAANA#20 integrates a 10-bit successive-approximation ADC with 6 analog input channels, internal 1.45 V reference voltage, and an on-chip temperature sensor. It supports single-ended and differential measurements, and its conversion results are accessible via DMA. While no factory-trimmed calibration is provided, the R5F100BAANA#20 allows software-based offset/gain adjustment using its internal reference - enabling ±1 LSB accuracy after system-level calibration.