Renesas R7FA2A2BD3CFN#HA1

Overview

R7FA2A2BD3CFN#HA1 from Renesas is an ultra-low-power 32-bit Arm® Cortex®-M23 microcontroller operating at up to 48 MHz, featuring 512-KB dual-bank flash, 48-KB SRAM with ECC/parity split, 4-channel 24-bit sigma-delta ADC (SDADC24), 12-bit ADC (ADC12), and integrated segment LCD controller for battery-powered industrial HMI applications.

For engineers reviewing the R7FA2A2BD3CFN#HA1 datasheet, R7FA2A2BD3CFN#HA1 pinout, R7FA2A2BD3CFN#HA1 application, or R7FA2A2BD3CFN#HA1 equivalent, this device delivers certified functional safety support (IEC 61508 SIL2-ready peripherals), AES-128/256 encryption, independent power supply RTC, and low-voltage detection across VCC, VRTC, and EXLVDVBAT rails - critical for medical sensors, smart meters, and portable instrumentation.

Technical Context

The R7FA2A2BD3CFN#HA1 implements Armv8-M architecture with Memory Protection Unit (8 regions) and CoreSight™ MTB-M23 trace, enabling secure, deterministic real-time execution. Its dual-bank flash supports Bank Swap for seamless firmware updates without runtime interruption.

It integrates two asynchronous timer families: eight 16-bit AGT timers and two 32-bit AGTW timers - all operable in low-power modes with independent clock sources (LOCO/SOSC). The SDADC24 uses PLL-multiplied 32.768 kHz sub-clock for high-precision measurement at 3.906/7.813 kHz sampling rates with differential input support on ANIP/ANIN pins.

Key Specifications

Pinout & Package

Package: 80-pin LQFP (12 mm × 12 mm, 0.5 mm pitch), RoHS-compliant, Pb-free terminal material.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R7FA2A2BD3CFN#HA1, the R7FA2A2AD3CFP offers expanded analog and display resources at higher pin count, while R7FA2A2BD3CFM reduces size and I/O count - both retain identical security, safety, and low-power features but require PCB changes due to non-overlapping pin assignments.

Availability

R7FA2A2BD3CFN#HA1 is available at Aetrix Electronics and suitable for smart metering, portable diagnostics, industrial HMI, and asset tracking applications requiring stable component supply, long-term lifecycle assurance, and automotive-grade reliability under extended temperature conditions.

Supply support for R7FA2A2BD3CFN#HA1 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 Corporation is a global semiconductor leader delivering trusted embedded solutions for automotive, industrial, infrastructure, and IoT markets, with deep expertise in microcontrollers, analog, and power management.

The RA2A2 Group targets ultra-low-power, safety- and security-conscious applications in industrial sensing and human-machine interfaces, combining Arm Cortex-M23 efficiency with Renesas' proprietary analog and LCD IP.

FAQ

What is the maximum operating frequency and core architecture of the R7FA2A2BD3CFN#HA1?

The R7FA2A2BD3CFN#HA1 features an Arm Cortex-M23 core compliant with Armv8-M architecture and operates at a maximum frequency of 48 MHz. It includes an 8-region Memory Protection Unit (MPU), CoreSight™ MTB-M23 trace, and SW-DP debug interface - all confirmed in the R01DS0418EJ0130 datasheet Rev. 1.30. This configuration enables deterministic real-time performance with hardware-enforced memory isolation for safety-critical tasks.

Does the R7FA2A2BD3CFN#HA1 support secure firmware updates?

Yes, the R7FA2A2BD3CFN#HA1 supports secure firmware updates via its dual-bank flash memory with Bank Swap functionality and integrated AES-128/256 encryption engine. The Memory Mirror Function (MMF) further simplifies bootloader development by decoupling load and link addresses. These capabilities are documented in Section 1.2 and Table 1.2 of the R01DS0418EJ0130 datasheet.

How many analog input channels does the R7FA2A2BD3CFN#HA1 provide, and what types of converters are included?

The R7FA2A2BD3CFN#HA1 integrates two independent analog subsystems: a 4-channel 24-bit sigma-delta ADC (SDADC24) with programmable gain amplifier and differential input support on ANIP/ANIN pins, and a 4-input 12-bit successive-approximation ADC (ADC12). Both converters share dedicated analog supplies (AVCC/AVSS) and reference pins (VREFH0/VREFL0, AVRT/AVCM).

What LCD driving capability does the R7FA2A2BD3CFN#HA1 offer, and how is it configured?

The R7FA2A2BD3CFN#HA1 includes a Segment LCD Controller (SLCDC) supporting either 35 segments × 8 commons or 45 segments × 4 commons, configurable via register settings. It provides internal voltage boosting, capacitor-split, and external resistor-divider bias methods, with selectable VL1–VL4 outputs and waveform A/B modes - all verified in Table 1.9 and Figure 1.5 of the R01DS0418EJ0130 datasheet.

Is the R7FA2A2BD3CFN#HA1 qualified for extended temperature operation, and what packaging is used?

Yes, the R7FA2A2BD3CFN#HA1 is rated for operation from −40°C to +105°C and is supplied in an 80-pin LQFP package (12 mm × 12 mm, 0.5 mm pitch) with Pb-free terminal finish. This qualification and packaging are explicitly stated in Section 1.4 "Operating Temperature and Packages" and Table 1.12 of the R01DS0418EJ0130 datasheet Rev. 1.30.