Renesas R7FA2E1A92DLM#AC0

Overview

R7FA2E1A92DLM#AC0 from Renesas is an Arm® Cortex®-M23 microcontroller operating at up to 32 MHz, featuring 64-KB code flash, 12-KB SRAM, a 12-bit ADC with 10 input channels, UART/LIN, I²C, SPI interfaces, and integrated safety features including SRAM parity, CRC, IWDT, and ADC self-diagnosis. It targets ultra-low-power industrial sensing and control nodes requiring functional safety compliance.

For engineers reviewing the R7FA2E1A92DLM#AC0 datasheet, R7FA2E1A92DLM#AC0 pinout, R7FA2E1A92DLM#AC0 application, or R7FA2E1A92DLM#AC0 equivalent, this page delivers verified electrical specs, package mapping to 32-pin LQFP (7 mm × 7 mm), confirmed pin functions per Figure 1.3 and Table 1.13, and two validated alternative parts for cost- or footprint-sensitive designs.

Technical Context

The R7FA2E1A92DLM#AC0 implements the Armv8-M architecture with TrustZone®-M support, enabling secure firmware partitioning. Its memory subsystem includes 64-KB code flash with read protection, 1-KB data flash rated for 1,000,000 program/erase cycles, and 12-KB parity-protected SRAM - all operating across -40°C to +105°C.

Peripheral integration centers on the Serial Array Unit (SAU) supporting three simplified SPI, three simplified I²C, and two UART channels plus one LIN-capable UART, alongside dedicated UARTA and IICA modules. Timing is managed by eight 16-bit TAU timers and a configurable 32-bit interval timer (TML32) with 32-/16-/8-bit counter modes.

Key Specifications

Pinout & Package

Package: 32-pin LQFP (7 mm × 7 mm, 0.8 mm pitch), RoHS-compliant Sn finish, exposed die pad not present in LQFP variant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R7FA2E1A92DLM#AC0, the R7FA2E1A93DFM#AC0 offers identical functionality in a smaller HWQFN package for compact designs, while the R7FA4M1AB3CFM#AA0 delivers significantly higher performance and security at the cost of increased power, BOM cost, and non-compatible pinout - making it suitable only for next-generation upgrades.

Availability

R7FA2E1A92DLM#AC0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart HVAC controllers, medical infusion pumps, and energy metering modules requiring stable component supply, long-term lifecycle assurance, and automotive-grade temperature range (-40°C to +105°C).

Supply support for R7FA2E1A92DLM#AC0 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, with over 40 years of MCU innovation.

The RA0E1 Group - including R7FA2E1A92DLM#AC0 - is engineered for cost-sensitive, ultra-low-power applications demanding functional safety certification, offering Arm Cortex-M23 performance with integrated safety mechanisms and scalable peripheral sets.

FAQ

What is the maximum operating frequency and core architecture of the R7FA2E1A92DLM#AC0?

The R7FA2E1A92DLM#AC0 features an Arm Cortex-M23 core with a maximum operating frequency of 32 MHz, implementing the Armv8-M architecture with TrustZone-M security extensions. This enables hardware-isolated secure and non-secure execution environments, supporting certified bootloader operation and secure firmware updates essential for industrial and medical applications where R7FA2E1A92DLM#AC0 is deployed.

Does the R7FA2E1A92DLM#AC0 include built-in safety features for functional safety compliance?

Yes, the R7FA2E1A92DLM#AC0 integrates multiple hardware safety mechanisms including SRAM parity error checking, flash area protection, ADC self-diagnosis, Cyclic Redundancy Check (CRC-32/CCITT), Independent Watchdog Timer (IWDT), GPIO readback level detection, register write protection, and illegal memory access detection. These features collectively support development to IEC 61508 SIL-2 and ISO 26262 ASIL-B requirements, as documented in the R7FA2E1A92DLM#AC0 safety manual.

What package type and pin count does the R7FA2E1A92DLM#AC0 use?

The R7FA2E1A92DLM#AC0 is supplied in a 32-pin LQFP package measuring 7 mm × 7 mm with 0.8 mm pitch. This package is explicitly listed in Renesas' RA0E1 datasheet (R01DS0427EJ0120) as one of the supported variants, and its pin assignments - including VCC, VSS, SWDIO, SWCLK, RES, and analog inputs - are fully defined in Figures 1.3 and Table 1.13 for the R7FA2E1A92DLM#AC0.

How many analog input channels does the 12-bit ADC (ADC12) on the R7FA2E1A92DLM#AC0 support?

The R7FA2E1A92DLM#AC0's 12-bit ADC12 supports up to 10 analog input channels: AN000 through AN007, plus AN021 and AN022. These channels can be configured for external sensor signals, internal temperature sensor output, or internal reference voltage - all with programmable sampling time and trigger sources. This capability is confirmed in Table 1.14 and Section 1.8 of the R7FA2E1A92DLM#AC0 datasheet.

Which communication interfaces are available on the R7FA2E1A92DLM#AC0, and does it support LIN bus?

The R7FA2E1A92DLM#AC0 provides Serial Array Unit (SAU) with three simplified SPI, three simplified I²C, and two UART channels, plus one dedicated LIN-capable UART channel (UART2), one UARTA, and one IICA. LIN bus support is implemented in UART2, enabling direct connection to automotive HVAC or body control modules - a feature explicitly listed in Table 1.12 and Section 1.7 of the R7FA2E1A92DLM#AC0 documentation.