Renesas R9A02G0214CNH#UA0

Overview

R9A02G0214CNH#UA0 from Renesas is a 32-bit RISC-V microcontroller featuring a 48 MHz ultra-low-power core, 128 KB code flash, 16 KB SRAM (12 KB parity + 4 KB ECC), 12-bit ADC with 8 input channels, dual 8-bit DACs, and integrated safety features including SRAM ECC, CAC, CRC, DOC, TRNG, and IWDT. It targets industrial sensor nodes and battery-powered control systems requiring functional safety compliance.

For engineers reviewing the R9A02G0214CNH#UA0 datasheet, R9A02G0214CNH#UA0 pinout, R9A02G0214CNH#UA0 application, or R9A02G0214CNH#UA0 equivalent, key selection criteria include its 32-pin HWQFN package, -40°C to +125°C operating range, 1.6–5.5 V supply, dual I²C interfaces, SAU-based UART/SPI/I²C flexibility, and hardware safety accelerators for ASIL-B–capable designs.

Technical Context

This MCU implements the RISC-V RV32I base ISA with M, A, C, Zifencei, Ziscr, and B extensions-including bit manipulation (Zba/Zbb/Zbs)-and supports machine-mode privilege only. Its debug interface uses cJTAG with four hardware breakpoints and trace capability via external debug support.

The system architecture integrates an Event Link Controller (ELC) for CPU-free peripheral triggering, a Data Transfer Controller (DTC) for autonomous memory transfers, and a Clock Frequency Accuracy Measurement Circuit (CAC) that validates clock sources against reference oscillators-critical for fail-safe timing in safety-critical applications.

Key Specifications

Pinout & Package

Package: 32-pin HWQFN (5 mm × 5 mm, 0.5 mm pitch), moisture sensitivity level (MSL) 3, RoHS-compliant, Sn (tin) terminal finish.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R9A02G0214CNE#UA0 and R9A02G0214CNK#UA0, the R9A02G0214CNH#UA0 delivers optimal balance: sufficient I/O (26 pins) and analog resources (8 ADC, 2 DAC) for mid-tier industrial nodes, while retaining sub-clock support and full safety feature set-without over-provisioning package size or cost.

Availability

R9A02G0214CNH#UA0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart actuator control, functional safety PLC modules, and edge gateway interfaces requiring stable component supply across extended temperature and long product lifecycles.

Supply support for R9A02G0214CNH#UA0 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 deep expertise in microcontrollers, analog, power, and connectivity technologies.

The R9A02G021 series is part of Renesas' RISC-V-based RA2E2 group-designed specifically for ultra-low-power, safety-aware industrial and consumer edge applications demanding high integration, robustness, and long-term supply assurance.

FAQ

What is the maximum operating frequency and core architecture of the R9A02G0214CNH#UA0?

The R9A02G0214CNH#UA0 features a Renesas-optimized RISC-V 32-bit core compliant with RV32IMACB instruction set, supporting integer, multiplication/division, atomic, compressed, and bit-manipulation extensions. Its maximum operating frequency is 48 MHz, validated across the full -40°C to +125°C temperature range and 1.6–5.5 V supply voltage.

Does the R9A02G0214CNH#UA0 support hardware functional safety features required for IEC 61508 or ISO 26262 compliance?

Yes, the R9A02G0214CNH#UA0 includes multiple hardware safety mechanisms: SRAM ECC error detection and correction, flash area protection, Clock Frequency Accuracy Measurement Circuit (CAC), Cyclic Redundancy Check (CRC) calculator, Data Operation Circuit (DOC), True Random Number Generator (TRNG), Independent Watchdog Timer (IWDT), and register write protection-all documented in the R01DS0422EJ0110 datasheet as part of its safety concept.

How many analog-to-digital converter (ADC) channels and digital-to-analog converter (DAC) outputs does the R9A02G0214CNH#UA0 provide?

The R9A02G0214CNH#UA0 integrates a 12-bit successive approximation ADC with 8 selectable input channels (ANI0–ANI5 and ANI16–ANI19), plus an on-chip temperature sensor. It also includes two independent 8-bit DAC outputs (DACOUT0 and DACOUT1), each usable as analog actuator drivers or programmable reference voltages for the dual comparators.

What communication interfaces are available on the R9A02G0214CNH#UA0, and how are they implemented?

The R9A02G0214CNH#UA0 provides Serial Array Units (SAU × 2) supporting up to 3 UART, 3 SPI, and 3 I²C channels on shared pins; one I²C Bus Interface (IICA0); and Remote Control Signal Receiver (REMC). No UARTA or second IICA is present-unlike the 48-pin variant-making SAU the primary serial engine for flexible, pin-multiplexed protocol implementation.

What is the package type, pin count, and operating temperature range of the R9A02G0214CNH#UA0?

The R9A02G0214CNH#UA0 is housed in a 32-pin HWQFN package (5 mm × 5 mm, 0.5 mm pitch) with Sn (tin) terminal finish. It operates across the industrial temperature range of -40°C to +125°C and supports supply voltages from 1.6 V to 5.5 V-enabling deployment in harsh environments such as factory automation, building controls, and transportation systems.