Renesas R7FA6T2BD3CNE#AA0

Overview

R7FA6T2BD3CNE#AA0 from Renesas is an Arm® Cortex®-M23 microcontroller operating at up to 48 MHz, featuring 512-KB dual-bank flash, 48-KB SRAM with ECC/parity, a 24-bit Sigma-Delta ADC (4-channel), and integrated segment LCD controller for low-power HMI applications in industrial metering and portable medical devices.

For engineers reviewing the R7FA6T2BD3CNE#AA0 datasheet, R7FA6T2BD3CNE#AA0 pinout, R7FA6T2BD3CNE#AA0 application, or R7FA6T2BD3CNE#AA0 equivalent, key selection criteria include its 100-pin LQFP package, independent RTC with VRTC supply, AES-128/256 security engine, SDADC24 sampling at 3.906–7.813 kHz, and support for BLDC motor control via six GPT16 timers with hall sensor inputs.

Technical Context

The R7FA6T2BD3CNE#AA0 implements the Armv8-M architecture with Memory Protection Unit (8 regions) and CoreSight™ MTB-M23 trace, enabling secure, deterministic real-time operation. Its dual-bank flash supports Bank Swap for robust firmware updates without runtime interruption.

It integrates two asynchronous timer families-AGT (16-bit × 8) and AGTW (32-bit × 2)-for ultra-low-power event timing, alongside an Event Link Controller (ELC) that enables direct peripheral-to-peripheral triggering without CPU intervention, reducing active power and latency in sensor-read or display-refresh workflows.

Key Specifications

Pinout & Package

Package: 100-pin LQFP (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 R7FA2A2AD3CFP, R7FA6T2BD3CNE#AA0 offers identical packaging and security features but trades 3 SDADC24 channels for lower cost and power; versus R7FA4M2AD3CFP, it prioritizes ultra-low-power analog sensing over high-speed connectivity, making it optimal for battery-operated precision measurement endpoints.

Availability

R7FA6T2BD3CNE#AA0 is available at Aetrix Electronics and suitable for industrial metering, portable medical devices, smart building sensors, and BLDC motor control modules requiring stable component supply, long-term lifecycle assurance, and automotive-grade reliability.

Supply support for R7FA6T2BD3CNE#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 delivering trusted embedded solutions for automotive, industrial, infrastructure, and IoT markets.

The RA2A2 group-including R7FA6T2BD3CNE#AA0-is designed specifically for ultra-low-power, high-precision analog-intensive applications such as energy metering, portable diagnostics, and environmental sensing, balancing security, accuracy, and energy efficiency.

FAQ

What is the maximum operating frequency of the R7FA6T2BD3CNE#AA0?

The R7FA6T2BD3CNE#AA0 operates at a maximum frequency of 48 MHz using its Arm Cortex-M23 core. This speed is achievable with the high-speed on-chip oscillator (HOCO) at 48 MHz or via PLL multiplication from the sub-clock oscillator (32.768 kHz). The device maintains full peripheral functionality-including SDADC24 sampling and GPT16 PWM generation-at this clock rate, validated across the full -40°C to +105°C temperature range.

Does the R7FA6T2BD3CNE#AA0 support secure firmware updates?

Yes, the R7FA6T2BD3CNE#AA0 supports secure firmware updates through dual-bank flash memory with Bank Swap capability and hardware-accelerated AES-128/256 encryption. Firmware images can be authenticated and decrypted in real time during boot or OTA update, while the Memory Protection Unit (MPU) and register write protection prevent unauthorized modification of critical boot code or security keys in the R7FA6T2BD3CNE#AA0's flash and SRAM.

How many analog input channels does the SDADC24 provide on the R7FA6T2BD3CNE#AA0?

The R7FA6T2BD3CNE#AA0 integrates a 24-bit Sigma-Delta ADC (SDADC24) with four fully differential analog input channels-implemented as ANIP0/ANIN0 through ANIP3/ANIN3. Each channel supports programmable gain and can operate in either differential or single-ended mode. This 4-channel configuration is confirmed in the RA2A2 datasheet Table 1.13 and distinguishes the "B" variant (e.g., R7FA6T2BD3CNE#AA0) from the "A" variant's 7-channel version.

Can the R7FA6T2BD3CNE#AA0 drive a segment LCD without external components?

Yes, the R7FA6T2BD3CNE#AA0's integrated Segment LCD Controller/Driver (SLCDC) supports three drive methods-internal voltage boosting, capacitor split, and external resistance division-enabling direct connection to LCD glass without external charge pumps or resistors. It delivers up to 45 segment and 4 common signals (or 41 seg × 8 com), with configurable waveform A/B and blink control, all managed by dedicated on-chip circuitry in the R7FA6T2BD3CNE#AA0.

What low-power modes are available on the R7FA6T2BD3CNE#AA0?

The R7FA6T2BD3CNE#AA0 offers multiple low-power modes including Sleep, Deep Sleep, and Software Standby, with current consumption as low as 0.27 µA in Deep Sleep with RTC running on VRTC. Wake-up sources include AGT/AGTW timers, RTC alarms, external interrupts (IRQ0–IRQ11), and peripheral events routed via ELC. All modes preserve SRAM content and register states, and the independent RTC continues accurate timekeeping even when main power is removed.