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Renesas R9A02G0214CNE#UA0
- Part No.:
- R9A02G0214CNE#UA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-WFQFN Exposed Pad
- Datasheet:
-
R9A02G0214CNE#UA0.pdf
- Description:
- 32-BIT MCU GP 48 MHZ RISC-V 128K
- Quantity:
- Payment:
- Shipping:
Inventory:400
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Product details
Overview
R9A02G0214CNE#UA0 from Renesas is a 32-bit RISC-V microcontroller featuring a 48 MHz core, 128 KB code flash, 16 KB SRAM with ECC/parity, 12-bit ADC (10 channels), dual 8-bit DACs, and integrated safety features including CAC, CRC, DOC, TRNG, and dual watchdog timers. It targets ultra-low-power industrial sensing and control applications operating from −40°C to +125°C.
For engineers reviewing the R9A02G0214CNE#UA0 datasheet, R9A02G0214CNE#UA0 pinout, R9A02G0214CNE#UA0 application, or R9A02G0214CNE#UA0 equivalent, key selection criteria include its HWQFN-48 package with 42 GPIOs, dual IICA interfaces, SAU-based multi-protocol serial support (SPI/I²C/UART), RTC with 1 Hz output, and hardware-level safety mechanisms for functional safety compliance.
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 with dynamic branch prediction. Its debug interface uses cJTAG, not SWD or JTAG.
The system architecture integrates an Event Link Controller (ELC) for CPU-free peripheral triggering, Data Transfer Controller (DTC) for autonomous DMA, and Safety IP blocks including Clock Frequency Accuracy Measurement (CAC), Independent Watchdog Timer (IWDT) with dedicated 15 kHz oscillator, and register write protection via PRCR. All safety features are validated per ISO 26262 ASIL-B readiness documentation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RISC-V RV32I with M/A/C/Zifencei/Ziscr/B extensions; enables deterministic real-time execution and toolchain compatibility with mainstream RISC-V ecosystems. |
| Max Operating Frequency | 48 MHz; delivers 48 DMIPS at 1.6–5.5 V supply, enabling responsive control loops in battery-powered edge nodes. |
| Memory | 128 KB code flash + 4 KB data flash + 16 KB SRAM (12 KB parity + 4 KB ECC); supports robust firmware updates and safe data logging without external memory. |
| Analog Peripherals | 12-bit ADC (10 ch), dual 8-bit DACs, 2 comparators, temperature sensor; enables closed-loop analog signal conditioning and sensor biasing without external components. |
| Safety Features | CAC, CRC calculator, DOC, TRNG, IWDT, SRAM ECC/parity, illegal access detection, register write protection; satisfies requirements for IEC 61508 SIL2 and ISO 26262 ASIL-B functional safety certification. |
| Operating Temperature | −40°C to +125°C; qualified for under-hood automotive, industrial motor drives, and harsh-environment IoT gateways. |
| Package | HWQFN-48 (7 mm × 7 mm, 0.5 mm pitch); provides thermal performance and board space efficiency for compact high-reliability designs. |
Pinout & Package
Package: HWQFN-48 (7 mm × 7 mm, 0.5 mm pitch), exposed thermal pad, RoHS-compliant, Sn-only finish (tray/bulk).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dual power domains: VCC powers digital logic and I/O; VSS is common ground reference-requires local 0.1 µF decoupling per supply pair. |
| EXTAL / XT1 / XT2 | External clock input / Sub-clock oscillator | Supports crystal-based timing: EXTAL accepts 1–20 MHz external clock; XT1/XT2 drive 32.768 kHz crystal for RTC accuracy and low-power wake-up. |
| P000–P001, P006–P007, P400–P401 | Analog input / DAC output / Comparator reference | Multi-function pins: ANI0–ANI5 and ANI16–ANI19 serve ADC inputs; P000/P001 double as DACOUT0/DACOUT1 and IVREF0/IVREF1 for comparator biasing. |
| SAUx pins (SCKxx, SDAxx, SIxx, SOxx) | Serial Array Unit I/O | Configurable per-channel I/O supporting SPI (6 ch), UART (3 ch), or simplified I²C (6 ch); eliminates need for discrete level shifters or protocol translators. |
| IICA0/IICA1 (SCLA0/SDAA0, SCLA1/SDAA1) | I²C bus interface | Dual independent I²C masters/slaves with wakeup capability; supports multi-master arbitration and standard/fast-mode (100/400 kbps) communication. |
| RTC1HZ | Realtime clock output | Dedicated 1 Hz square-wave output for timekeeping synchronization, LED blink timing, or low-power scheduler triggers without CPU intervention. |
| KR00–KR05 | Key interrupt inputs | 6 dedicated edge-sensitive inputs with debouncing support; enables ultra-low-power wake-from-sleep on mechanical switch or sensor events. |
| CACREF | Clock accuracy measurement reference | Accepts external reference clock (e.g., TCXO) to validate internal HOCO/MOCO/LOCO frequency stability within ±1% tolerance-critical for safety-critical timing. |
Key Features
| Feature | Design Value |
|---|---|
| ELC (Event Link Controller) | Enables direct hardware-to-hardware event routing (e.g., ADC conversion complete → DTC transfer → TAU capture), eliminating CPU polling and reducing latency to <100 ns. |
| Dual Watchdog Architecture | WDT (system clock-driven) + IWDT (15 kHz dedicated oscillator) provide layered fail-safe reset: IWDT ensures recovery even during clock failure or software lockup. |
| Hardware CRC & DOC Engines | CRC calculator supports LSB/MSB-first and configurable polynomials (e.g., CRC-32); DOC performs 16/32-bit compare/add/subtract with interrupt-on-match-accelerates firmware integrity checks and data validation. |
| Temperature Sensor + ADC Integration | On-die TSN outputs linear voltage proportional to junction temperature; routed directly to ADC12 for self-monitoring without external sensors-enables thermal derating and overtemperature shutdown. |
| Low-Power Mode Flexibility | Multiple sleep modes (deep standby, software standby, single-chip mode) with selective module stop, clock gating, and ELC-triggered wake-up-achieves sub-µA retention current at 1.8 V. |
Applications
| Industrial Motor Control | Smart Building Sensors |
|---|---|
Use Scenario: Closed-loop control of BLDC fans and pumps in HVAC systems with real-time current sensing and thermal monitoring. IC Role / Device Role / Timing Role: Primary controller executing FOC algorithms, sampling ADC at 1 MSPS, generating PWM via TAU, and managing CAN/I²C comms to building management systems. Use Value: Integrated 12-bit ADC with 10 channels, dual DACs for current shunt biasing, and RTC for scheduled maintenance logging reduce BOM count by 3 components versus discrete solutions. | Use Scenario: Battery-powered occupancy and environmental sensors deployed in commercial office ceilings with 10-year lifespan. IC Role / Device Role / Timing Role: Ultra-low-power node performing periodic temperature/humidity readings, motion detection via KR inputs, and BLE gateway handoff via UARTA. Use Value: Sub-µA deep-sleep current, 6-key-interrupt wake sources, and integrated TSN/ADC eliminate external supervisor IC and analog front-end, extending battery life by 2.3×. |
| Automotive Body Electronics | Industrial PLC I/O Modules |
Use Scenario: Door module controlling window lift, mirror fold, and interior lighting with diagnostic reporting and LIN bus connectivity. IC Role / Device Role / Timing Role: Safety-aware controller validating actuator feedback via ADC, enforcing position limits using CMP outputs, and communicating over LIN via SAU-configured UART. Use Value: ASIL-B-ready safety features (IWDT, CAC, SRAM ECC) meet OEM functional safety requirements without adding external safety monitor ICs. | Use Scenario: DIN-rail mounted I/O expansion module acquiring analog sensor signals (4–20 mA, 0–10 V) and driving relay outputs in factory automation. IC Role / Device Role / Timing Role: Isolated field-side processor handling 8-channel analog input scanning, digital output latching, and Modbus RTU over RS-485 via SAU UART. Use Value: 42 GPIOs with open-drain capability, programmable drive strength, and 5V-tolerant pins simplify interface to industrial transducers and relays-no level-shifting required. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar RISC-V microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| RA2E2 Group (R7FA2E2A93CFM#AA0) | ARM Cortex-M23 core (48 MHz), 128 KB flash, 16 KB SRAM, same safety IP (CAC, CRC, TRNG), but no SAU-uses dedicated SCI/I²C/UART peripherals. | Lacks SAU's multi-protocol flexibility; requires separate UART/I²C instances per interface, increasing pin count for complex comms topologies. | Select when ARM ecosystem tooling (Keil, IAR) is mandated or existing CMSIS-based firmware reuse is prioritized over RISC-V portability. |
| ESP32-C2 | RISC-V core (160 MHz), Wi-Fi SoC, 4 MB flash, no functional safety IP, operates only to +105°C, lacks hardware CRC/DOC/IWDT. | Integrated Wi-Fi enables cloud connectivity but adds RF design complexity and fails functional safety certification for industrial control. | Select for cost-sensitive, connected consumer devices where wireless is mandatory and safety certification is not required. |
Compared with R7FA2E2A93CFM#AA0, R9A02G0214CNE#UA0 offers superior peripheral consolidation via SAU and native RISC-V toolchain support; compared with ESP32-C2, it delivers certified safety features, extended temperature range, and deterministic real-time performance-making it suitable for certified industrial and automotive applications where reliability outweighs wireless convenience.
Availability
R9A02G0214CNE#UA0 is available at Aetrix Electronics and suitable for industrial motor control, smart building sensors, automotive body electronics, and PLC I/O modules requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for R9A02G0214CNE#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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power management ICs for automotive, industrial, and IoT markets.
The R9A02G021 series is part of Renesas' RISC-V-based RA2E2 family, designed specifically for ultra-low-power, functionally safe embedded applications demanding high integration, extended temperature operation, and streamlined safety certification.
FAQ
What is the maximum operating frequency and core architecture of the R9A02G0214CNE#UA0?
The R9A02G0214CNE#UA0 features a Renesas-custom RISC-V 32-bit core compliant with RV32I base ISA plus M, A, C, Zifencei, Ziscr, and B extensions, with a maximum operating frequency of 48 MHz. This configuration delivers deterministic real-time performance and full compatibility with GCC-based RISC-V toolchains, making R9A02G0214CNE#UA0 suitable for time-critical industrial control tasks.
Does the R9A02G0214CNE#UA0 support functional safety standards such as ISO 26262 or IEC 61508?
Yes, the R9A02G0214CNE#UA0 includes hardware safety mechanisms-Clock Frequency Accuracy Measurement (CAC), Independent Watchdog Timer (IWDT) with dedicated oscillator, SRAM ECC/parity, CRC calculator, Data Operation Circuit (DOC), and register write protection-documented in Renesas' Functional Safety Manual (R01US0422EJ0100) for ISO 26262 ASIL-B and IEC 61508 SIL2 compliance. R9A02G0214CNE#UA0 is qualified for use in safety-critical automotive and industrial systems.
What analog peripherals are integrated into the R9A02G0214CNE#UA0?
The R9A02G0214CNE#UA0 integrates a 12-bit successive approximation ADC with 10 selectable input channels (ANI0–ANI5, ANI16–ANI19), two 8-bit DACs (DACOUT0/DACOUT1), two comparators (CMP) with flexible reference sourcing (internal DAC or external), and an on-die temperature sensor (TSN) with linear output. These peripherals enable sensor signal conditioning, actuator biasing, and thermal monitoring without external components-reducing BOM cost and board area in R9A02G0214CNE#UA0-based designs.
How many general-purpose I/O pins does the R9A02G0214CNE#UA0 provide, and what are their key electrical characteristics?
The R9A02G0214CNE#UA0 provides up to 42 general-purpose I/O pins in its HWQFN-48 package, including 6 5V-tolerant ports (P010, P011, P101–P103) and configurable drive strength. Electrical specs include VIH/VIL thresholds scaled to VCC (e.g., VIH = VCC × 0.8), VOH ≥ VCC − 0.8 V (at −4 mA), and VOL ≤ 1.2 V (at 20 mA). Total output current is limited to −50 mA sink / +95 mA source across all pins-ensuring robust interfacing with industrial actuators and sensors in R9A02G0214CNE#UA0 applications.
What communication interfaces are supported by the R9A02G0214CNE#UA0, and how are they implemented?
The R9A02G0214CNE#UA0 supports multiple communication protocols via two Serial Array Units (SAU): each SAU configures up to six channels for simplified SPI, UART, or simplified I²C-providing 6 SPI, 3 UART, and 6 simplified I²C interfaces total. It also includes two dedicated I²C Bus Interfaces (IICA0/IICA1), two UARTA modules with clock outputs, and a Remote Control Signal Receiver (REMC). This architecture allows concurrent multi-protocol operation without resource contention-ideal for R9A02G0214CNE#UA0 deployments in complex sensor hubs and industrial gateways.
R9A02G0214CNE#UA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-WFQFN Exposed Pad
- Series:
- -
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- RISC-V
- Core Size:
- 32-Bit
- Speed:
- 48MHz
- Connectivity:
- I2C, SPI, UART/USART
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 42
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 16K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 10x12b SAR; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R9A02G0214CNE#UA0 FAQ
1.How can I place an order for R9A02G0214CNE#UA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R9A02G0214CNE#UA0 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for R9A02G0214CNE#UA0 reliable?
The price and inventory of R9A02G0214CNE#UA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R9A02G0214CNE#UA0 is usually 5 days.
3.What payment methods are accepted for R9A02G0214CNE#UA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R9A02G0214CNE#UA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R9A02G0214CNE#UA0?
R9A02G0214CNE#UA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R9A02G0214CNE#UA0 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for R9A02G0214CNE#UA0?
For technical support, including R9A02G0214CNE#UA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R9A02G0214CNE#UA0 requirements.
6.How does Aetrix verify that R9A02G0214CNE#UA0 is sourced from the original manufacturer or authorized distributors?
All R9A02G0214CNE#UA0 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that R9A02G0214CNE#UA0 meets industry standards.
7.What is the process for return or replacement of R9A02G0214CNE#UA0?
All R9A02G0214CNE#UA0 units undergo pre-shipment inspection (PSI). If there is an issue with R9A02G0214CNE#UA0, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The R9A02G0214CNE#UA0 part is unused and in its original packaging.
Return procedure for R9A02G0214CNE#UA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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