Renesas R7FA6T2BD3CFM#AA0

Overview

R7FA6T2BD3CFM#AA0 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 hardware AES/TRNG security. It targets battery-powered industrial HMI, portable medical sensors, and smart utility meters requiring high-precision analog sensing and secure real-time operation.

For engineers reviewing the R7FA6T2BD3CFM#AA0 datasheet, R7FA6T2BD3CFM#AA0 pinout, R7FA6T2BD3CFM#AA0 application, or R7FA6T2BD3CFM#AA0 equivalent, this page delivers verified specifications, package mapping to 64-pin LQFP, functional pin roles, real-world use cases, and two validated alternative parts for design flexibility in low-power, safety-aware embedded systems.

Technical Context

The R7FA6T2BD3CFM#AA0 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.

Analog subsystem integrates a 24-bit Sigma-Delta ADC (SDADC24) with programmable gain amplifier, differential input support across 4 channels, and PLL-derived clocking (32.768 kHz → 12.0/12.8 MHz) for stable high-resolution measurement. The independent power supply RTC operates from VRTC with calendar mode (2000–2099) and alarm/correction functions.

Key Specifications

Pinout & Package

Package: 64-pin LQFP (PLQP0064KB-C), 10 mm × 10 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 ultra-low-power Arm Cortex-M23 microcontroller applications.

Compared with R7FA2A2BD3CFN, R7FA6T2BD3CFM#AA0 reduces PCB area and BOM count via 64-pin integration while maintaining identical analog precision and security features; versus R7FA6T2AD3CFM#AA0, it trades 3 SDADC24 channels and 24 extra segments for lower unit cost and identical power profile in resource-constrained deployments.

Availability

R7FA6T2BD3CFM#AA0 is available at Aetrix Electronics and suitable for industrial HMI panels, portable medical sensors, and smart utility meters requiring stable component supply, long-term lifecycle assurance, and automotive-grade reliability under -40°C to +105°C operation.

Supply support for R7FA6T2BD3CFM#AA0 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 specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and enterprise applications.

The RA2A2 Group-including R7FA6T2BD3CFM#AA0-is designed for ultra-low-power, safety-certifiable embedded systems demanding high-precision analog sensing, secure connectivity, and human interface integration in compact form factors.

FAQ

What is the maximum operating frequency and core architecture of the R7FA6T2BD3CFM#AA0?

The R7FA6T2BD3CFM#AA0 features an Arm Cortex-M23 core compliant with Armv8-M architecture, operating at a maximum frequency of 48 MHz. It includes an 8-region Memory Protection Unit (MPU), single-cycle integer multiplier, and CoreSight™ MTB-M23 trace capability. This architecture enables deterministic real-time performance and memory isolation critical for functional safety applications. The R7FA6T2BD3CFM#AA0 uses the same core revision (r1p0-00rel0) and instruction set as documented in the RA2A2 datasheet R01DS0418EJ0130.

Does the R7FA6T2BD3CFM#AA0 support hardware encryption and random number generation?

Yes, the R7FA6T2BD3CFM#AA0 integrates a hardware AES engine supporting ECB, CBC, CTR, GCM, CMAC, and CCM cipher modes with 128-bit and 256-bit key lengths. It also includes a True Random Number Generator (TRNG) compliant with NIST SP 800-90B entropy standards. These security peripherals operate independently of the CPU, enabling secure key derivation, encrypted firmware updates, and tamper-resistant data logging-all verified in the R7FA6T2BD3CFM#AA0's security feature set per Renesas documentation.

What analog-to-digital converter capabilities does the R7FA6T2BD3CFM#AA0 provide?

The R7FA6T2BD3CFM#AA0 integrates two ADC subsystems: a 24-bit Sigma-Delta ADC (SDADC24) with 4 differential or single-ended input channels, and a 12-bit successive-approximation ADC (ADC12) with 4 channels. The SDADC24 supports programmable gain amplification, PLL-derived clocking (12.0/12.8 MHz), and sampling rates of 7.813 kHz or 3.906 kHz. Both converters share dedicated analog supplies (AVCC/AVSS/AVCM/AVRT) to ensure noise-immune precision-key for R7FA6T2BD3CFM#AA0's target applications in medical and metrology systems.

What LCD driving capability does the R7FA6T2BD3CFM#AA0 offer?

The R7FA6T2BD3CFM#AA0 includes a Segment LCD Controller/Driver (SLCDC) supporting up to 21 segment × 4 common or 17 segment × 8 common configurations. It provides three voltage-generation methods-internal boosting, capacitor split, and external resistor division-and selectable waveforms (A/B) for optimized contrast and power efficiency. This integrated LCD driver eliminates external components for R7FA6T2BD3CFM#AA0-based handheld displays, reducing bill-of-materials and PCB complexity in industrial and medical HMI designs.

What package type and pin count does the R7FA6T2BD3CFM#AA0 use?

The R7FA6T2BD3CFM#AA0 is packaged in a 64-pin LQFP (PLQP0064KB-C) with 10 mm × 10 mm body size and 0.5 mm pitch. It provides 39 general-purpose I/O pins, including 3 input-only, 1 output-only, 37 with pull-up resistors, 32 N-channel open-drain outputs, and 2 pins with 5-V tolerance. This package matches the mechanical and thermal specifications defined in the RA2A2 datasheet and is RoHS-compliant with Pb-free terminations.