Renesas R7FA6T2AD3CNE#AA1

Overview

R7FA6T2AD3CNE#AA1 from Renesas is an Arm® Cortex®-M23 microcontroller operating at 48 MHz, featuring 512-KB dual-bank code flash, 48-KB SRAM with ECC/parity, 24-bit Sigma-Delta ADC (7-channel), 12-bit ADC (4-channel), segment LCD controller (45 seg × 4 com), and independent power supply RTC - deployed in industrial metering, portable medical sensors, and low-power HMI panels.

For engineers reviewing the R7FA6T2AD3CNE#AA1 datasheet, R7FA6T2AD3CNE#AA1 pinout, R7FA6T2AD3CNE#AA1 application, or R7FA6T2AD3CNE#AA1 equivalent, key selection criteria include its 7-channel SDADC24 with programmable gain amplifier, dual-bank flash for safe firmware updates, on-chip AES-128/256 and TRNG for secure boot, and 100-pin LQFP package supporting up to 67 GPIOs with 5-V tolerant inputs.

Technical Context

This MCU implements Armv8-M architecture with Memory Protection Unit (8 regions), debug via SW-DP, and dual-clock domain operation: main oscillator (1–20 MHz) and sub-clock (32.768 kHz) feed independent RTC and SDADC24 PLL. Its Event Link Controller (ELC) enables direct peripheral-to-peripheral triggering without CPU intervention.

The analog subsystem integrates two independent A/D converters: SDADC24 supports differential input with sampling rates of 3.906/4.166 kHz or 7.813/8.333 kHz using MOSC (12/16 MHz) or PLL-multiplied SOSC clock; ADC12 provides 12-bit conversion on four channels with internal temperature sensor and reference voltage inputs.

Key Specifications

Pinout & Package

Package: 100-pin LQFP (PLQP0100KB-B), 14 mm × 14 mm, 0.5 mm pitch, exposed pad not specified. Pin count includes 67 general-purpose I/O, 3 input-only (P200, P214, P215), 1 output-only (P600), and dedicated analog, clock, debug, and LCD signals.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R7FA2A2AD3CFP and R7FA6M2AD3CFP, R7FA6T2AD3CNE#AA1 uniquely balances ultra-high-resolution sigma-delta conversion, independent RTC power domain, and hardware security - making it optimal for safety-critical, analog-first embedded systems where measurement integrity and long-term firmware trust outweigh raw compute throughput or connectivity.

Availability

R7FA6T2AD3CNE#AA1 is available at Aetrix Electronics and suitable for industrial energy metering, portable medical sensors, smart building HMI panels, and low-power industrial RTUs requiring stable component supply across extended product lifecycles.

Supply support for R7FA6T2AD3CNE#AA1 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.

R7FA6T2AD3CNE#AA1 belongs to the RA2A2 group - designed specifically for ultra-low-power, high-precision analog applications demanding integrated SDADC, secure boot, and robust RTC functionality in harsh environments.

FAQ

What is the maximum operating frequency and core architecture of the R7FA6T2AD3CNE#AA1?

The R7FA6T2AD3CNE#AA1 features an Arm Cortex-M23 core compliant with Armv8-M architecture and operates at a maximum frequency of 48 MHz. It includes an Arm Memory Protection Unit with 8 configurable regions and supports debug via Serial Wire Debug (SW-DP). This architecture delivers efficient real-time performance with built-in security extensions essential for certified industrial firmware.

Does the R7FA6T2AD3CNE#AA1 support secure firmware updates?

Yes, the R7FA6T2AD3CNE#AA1 supports secure firmware updates through dual-bank flash memory with Bank Swap functionality and hardware-accelerated AES-128/256 encryption. The Memory Mirror Function (MMF) allows application code to be linked at fixed virtual addresses regardless of physical flash location, simplifying bootloader development and enabling authenticated, atomic updates verified by on-chip CRC and signature checks.

How many analog input channels does the R7FA6T2AD3CNE#AA1 support, and what are their types?

The R7FA6T2AD3CNE#AA1 supports two independent analog subsystems: a 24-bit Sigma-Delta ADC (SDADC24) with up to 7 differential or single-ended input channels (ANIP0–ANIP6 / ANIN0–ANIN6), and a 12-bit successive approximation ADC (ADC12) with 4 input channels (AN000–AN003). Both include internal temperature sensor and reference voltage inputs for self-calibration and environmental compensation.

What LCD driving capability does the R7FA6T2AD3CNE#AA1 provide?

The R7FA6T2AD3CNE#AA1 integrates a Segment LCD Controller/Driver (SLCDC) supporting up to 45 segment outputs and 4 common outputs (or 41 segments × 8 commons). It offers three drive methods - internal voltage boosting, capacitor split, and external resistance division - and supports waveform A/B selection and blinking control. All LCD signals (SEG0–SEG44, COM0–COM7) are routed to dedicated pins in the 100-pin LQFP package.

What is the operating temperature range and package type of the R7FA6T2AD3CNE#AA1?

The R7FA6T2AD3CNE#AA1 is packaged in a 100-pin LQFP (PLQP0100KB-B) with 14 mm × 14 mm body size and 0.5 mm pitch, rated for industrial operation from -40°C to +105°C. This package supports 67 general-purpose I/O pins, 3 input-only pins (P200, P214, P215), 1 output-only pin (P600), and dedicated analog, clock, debug, and LCD signal routing - validated for long-term reliability in thermally demanding deployments.