Renesas R7FA6T2BB3CFP#BA1

Overview

R7FA6T2BB3CFP#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 supply RTC, and AES-128/256 encryption. It targets battery-powered industrial HMI, portable medical sensors, and smart utility meters requiring high-precision analog measurement and secure firmware updates.

For engineers reviewing the R7FA6T2BB3CFP#BA1 datasheet, R7FA6T2BB3CFP#BA1 pinout, R7FA6T2BB3CFP#BA1 application, or R7FA6T2BB3CFP#BA1 equivalent, this page delivers verified technical context, exact package mapping (100-pin LQFP), confirmed pin functions, real-world use cases, and two validated alternative parts with documented functional and application-level differences.

Technical Context

The R7FA6T2BB3CFP#BA1 implements an Armv8-M architecture Cortex-M23 core with 8-region MPU, DWT/FPB debug support, and SW-DP interface. It integrates dual-bank flash for safe firmware updates and a Memory Mirror Function enabling load-link address decoupling.

Analog subsystem includes a 24-bit Sigma-Delta ADC with programmable gain amplifier supporting up to 4 differential inputs, sampling at 3.906–7.813 kHz, plus a separate 12-bit SAR ADC with 4 channels and on-chip temperature sensor. The SLCDC drives up to 45 segments × 4 commons or 41 segments × 8 commons using internal boosting or capacitor-split methods.

Key Specifications

Pinout & Package

Package: 100-pin LQFP (PLQP0100KB-B), 14 mm × 14 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 R7FA6T2BB3CFP#BA1, R7FA2A2AD3CFP offers expanded analog channel count in identical packaging for seamless upgrade, while R7FA6M5BH3CFP shifts focus to connectivity and compute at the expense of integrated HMI/analog features-requiring hardware and firmware redesign.

Availability

R7FA6T2BB3CFP#BA1 is available at Aetrix Electronics and suitable for industrial HMI panels, portable medical sensors, and smart utility meters requiring stable component supply across extended product lifecycles.

Supply support for R7FA6T2BB3CFP#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 Corporation is a global semiconductor leader delivering trusted embedded solutions for automotive, industrial, infrastructure, and IoT markets.

The RA2A2 group-including R7FA6T2BB3CFP#BA1-is designed specifically for cost-sensitive, ultra-low-power applications demanding high-precision analog measurement, secure firmware execution, and integrated human-machine interface capabilities.

FAQ

What is the maximum operating frequency and core architecture of the R7FA6T2BB3CFP#BA1?

The R7FA6T2BB3CFP#BA1 operates at a maximum frequency of 48 MHz and uses the Arm Cortex-M23 core based on the Armv8-M architecture. It includes an 8-region Memory Protection Unit (MPU), SW-DP debug interface, and DWT/FPB trace modules. This architecture enables secure, deterministic real-time performance ideal for certified industrial and medical applications where R7FA6T2BB3CFP#BA1 serves as the primary control and measurement engine.

Does the R7FA6T2BB3CFP#BA1 support true hardware-based AES encryption?

Yes, the R7FA6T2BB3CFP#BA1 integrates a dedicated AES accelerator supporting ECB, CBC, CTR, GCM, CMAC, and CCM cipher modes with 128-bit and 256-bit key lengths. It operates independently of the CPU, enabling secure firmware updates and encrypted sensor data storage without compromising real-time responsiveness. This hardware AES block is a defined feature of R7FA6T2BB3CFP#BA1 per Renesas documentation R01DS0418EJ0130.

What LCD driving capability does the R7FA6T2BB3CFP#BA1 provide?

The R7FA6T2BB3CFP#BA1 includes a Segment LCD Controller (SLCDC) capable of driving up to 45 segments with 4 commons or 41 segments with 8 commons. It supports internal voltage boosting, capacitor-split, and external resistor-divider bias methods, plus selectable waveform A or B for optimized contrast and power efficiency. This integrated SLCDC eliminates external driver ICs in R7FA6T2BB3CFP#BA1-based designs targeting low-cost, low-power displays.

How many analog-to-digital converter channels does the R7FA6T2BB3CFP#BA1 include?

The R7FA6T2BB3CFP#BA1 integrates two distinct ADC subsystems: a 24-bit Sigma-Delta ADC (SDADC24) with 4 differential input channels (ANIP0–ANIP3 / ANIN0–ANIN3), and a 12-bit successive-approximation ADC (ADC12) with 4 single-ended channels (AN000–AN003). Both converters operate concurrently and are supported by on-chip temperature sensing and programmable gain amplification-key differentiators confirmed for R7FA6T2BB3CFP#BA1 in the RA2A2 datasheet.

What package type and pin count does the R7FA6T2BB3CFP#BA1 use?

The R7FA6T2BB3CFP#BA1 is supplied in a 100-pin LQFP package (PLQP0100KB-B), measuring 14 mm × 14 mm with 0.5 mm pitch. It provides 67 general-purpose I/O pins, 3 input-only pins, 1 output-only pin, and dedicated analog, RTC, debug, and LCD interface pins as defined in the official pin assignment diagram (Figure 1.4). This package is fully compatible with R7FA2A2AD3CFP and R7FA2A2BD3CFP variants.