Renesas R7FA6T2BD3CNE#BA1

Overview

R7FA6T2BD3CNE#BA1 from Renesas is an ultra-low-power 48 MHz Arm® Cortex®-M23 microcontroller with 512-KB dual-bank flash, 48-KB SRAM, 24-bit Sigma-Delta ADC (4-channel), 12-bit ADC, segment LCD controller, independent-power RTC, and hardware AES/TRNG security. It targets battery-powered industrial sensors and portable medical devices requiring high-precision analog measurement and secure real-time display.

For engineers reviewing the R7FA6T2BD3CNE#BA1 datasheet, R7FA6T2BD3CNE#BA1 pinout, R7FA6T2BD3CNE#BA1 application, or R7FA6T2BD3CNE#BA1 equivalent, this MCU delivers verified low-power operation across -40°C to +105°C, integrated sigma-delta conversion for sensor signal conditioning, and pin-confirmed LQFP-100 packaging with 67 GPIOs, 3 input-only pins, and 1 output-only pin.

Technical Context

The R7FA6T2BD3CNE#BA1 implements Armv8-M architecture with Memory Protection Unit (8 regions) and CoreSight™ MTB-M23 trace, enabling certified functional safety designs. Its dual-bank flash supports Bank Swap for seamless firmware updates without runtime interruption.

It integrates two independent A/D subsystems: a 24-bit Sigma-Delta ADC (SDADC24) with programmable gain amplifier and 7.813 kHz sampling, and a 12-bit successive-approximation ADC (ADC12) with 4-channel input and temperature sensor interface - both operating under shared AVCC/AVSS analog supply with dedicated reference pins.

Key Specifications

Pinout & Package

Package: 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch), RoHS-compliant, Pb-free terminal finish.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R7FA6T2AD3CNE#BA1, the R7FA6T2BD3CNE#BA1 reduces SDADC24 channel count while retaining identical security, RTC, and LCD capabilities - making it optimal for cost-sensitive, single-sensor endpoints. Against RA4M2, it trades raw CPU speed for integrated analog and human-interface functions essential in sensor-display edge nodes.

Availability

R7FA6T2BD3CNE#BA1 is available at Aetrix Electronics and suitable for industrial sensor nodes, portable medical monitors, smart utility meters, and energy-harvesting IoT endpoints requiring stable component supply across extended temperature and long product lifecycles.

Supply support for R7FA6T2BD3CNE#BA1 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 RA2A2 group - including R7FA6T2BD3CNE#BA1 - is engineered for ultra-low-power, high-precision analog-intensive applications such as battery-operated sensors and medical devices with integrated display and security.

FAQ

What is the maximum operating frequency and core architecture of the R7FA6T2BD3CNE#BA1?

The R7FA6T2BD3CNE#BA1 features an Arm Cortex-M23 core operating at up to 48 MHz, implementing the Armv8-M architecture with Memory Protection Unit (MPU) supporting 8 memory regions. It includes debug and trace capabilities via CoreSight™ MTB-M23 and SW-DP interface. This architecture enables secure, deterministic real-time operation ideal for certified industrial and medical applications where R7FA6T2BD3CNE#BA1 serves as the primary control and signal processing unit.

Does the R7FA6T2BD3CNE#BA1 support hardware encryption and secure boot?

Yes, the R7FA6T2BD3CNE#BA1 integrates hardware AES-128/256 engines supporting ECB, CBC, CTR, GCM, CMAC, and CCM modes, plus a True Random Number Generator (TRNG) for cryptographic key generation. While it does not include a dedicated secure boot ROM, its flash protection, register write lock, and CAC clock monitoring enable robust secure boot implementations using Renesas' Flexible Software Package (FSP). These features are fully operational in R7FA6T2BD3CNE#BA1 and validated per RA2A2 datasheet Rev.1.30.

What analog peripherals are integrated into the R7FA6T2BD3CNE#BA1?

The R7FA6T2BD3CNE#BA1 integrates two independent A/D converters: a 24-bit Sigma-Delta ADC (SDADC24) with 4 differential or single-ended input channels and programmable gain amplifier, and a 12-bit successive-approximation ADC (ADC12) with 4 input channels and integrated temperature sensor interface. Both share dedicated analog supply pins (AVCC/AVSS) and reference inputs (VREFH0/VREFL0), and their conversion results feed directly into DMA-accessible registers - all confirmed in the R7FA6T2BD3CNE#BA1 datasheet section 1.8.

What LCD driving capability does the R7FA6T2BD3CNE#BA1 provide?

The R7FA6T2BD3CNE#BA1 includes a Segment LCD Controller/Driver (SLCDC) supporting up to 45 segment × 4 common or 41 segment × 8 common configurations. It offers three voltage-generation methods - internal boosting, capacitor split, and external resistor division - and supports waveform A/B selection and blinking. All SLCDC functionality is present and pin-confirmed in the R7FA6T2BD3CNE#BA1 100-pin LQFP package, with SEG0–SEG44 and COM0–COM7 assigned to dedicated output pins per Figure 1.3.

What package type and pin count does the R7FA6T2BD3CNE#BA1 use?

The R7FA6T2BD3CNE#BA1 uses a 100-pin LQFP package (14 mm × 14 mm, 0.5 mm pitch), designated by the "CNE" suffix in its part number. It provides 67 general-purpose I/O pins, 3 input-only pins, and 1 output-only pin, with 5-V tolerance on three pins (including RTCIC0–RTCIC2). This package is explicitly listed for R7FA6T2BD3CNE#BA1 in Table 1.12 and Figure 1.4 of the RA2A2 datasheet R01DS0418EJ0130 Rev.1.30.