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Renesas R7FA2E1A92DNE#AA0
- Part No.:
- R7FA2E1A92DNE#AA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-WFQFN Exposed Pad
- Datasheet:
-
R7FA2E1A92DNE#AA0.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 48HWQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,199
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Product details
Overview
R7FA2E1A92DNE#AA0 from Renesas Electronics is an ultra-low-power 32-bit Arm® Cortex®-M23 microcontroller operating at up to 48 MHz, featuring 128-KB code flash, 16-KB SRAM, a 12-bit ADC, capacitive touch sensing (CTSU2), and hardware AES/256 + TRNG security. It targets battery-powered HMI, smart sensors, and industrial control nodes requiring robust safety features and sub-100 µA/MHz active power.
For engineers reviewing the R7FA2E1A92DNE#AA0 datasheet, R7FA2E1A92DNE#AA0 pinout, R7FA2E1A92DNE#AA0 application, or R7FA2E1A92DNE#AA0 equivalent, key selection criteria include its 48-pin HWQFN package with 37 I/O pins, -40°C to +85°C industrial temperature grade, integrated CTSU2 for 20-channel touch, dual AGT timers for low-power event timing, and support for SCI × 4, SPI × 1, and I²C × 1 interfaces.
Technical Context
The R7FA2E1A92DNE#AA0 implements the Armv8-M architecture with Memory Protection Unit (MPU) and CoreSight™ MTB-M23 trace, enabling secure, deterministic real-time operation. Its clock system integrates HOCO (48 MHz), SOSC (32.768 kHz), and LOCO oscillators with CAC for frequency accuracy monitoring - critical for RTC and communication timing integrity.
System-level safety is enforced via SRAM parity checking, flash area protection, ADC self-diagnosis, IWDT with dedicated 15-kHz oscillator, and register write protection. The Event Link Controller (ELC) enables autonomous peripheral-to-peripheral triggering without CPU intervention, reducing latency and power in sensor data acquisition and motor control loops.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | Arm Cortex-M23 @ 48 MHz - energy-efficient 32-bit core with MPU and TrustZone-ready architecture for secure firmware partitioning. |
| Memory | 128-KB code flash + 4-KB data flash + 16-KB SRAM with parity - supports over-the-air updates, parameter storage, and error-detectable runtime data. |
| Analog | 12-bit ADC12 (13 channels), 2× ACMPLP, TSN - enables precision sensor signal conditioning and on-die temperature monitoring for thermal management. |
| Timers | GPT32 × 1, GPT16 × 6, AGT × 2, RTC, WDT/IWDT - provides flexible PWM generation (including BLDC control), low-power asynchronous counting, and calendar-aware timekeeping. |
| Connectivity | SCI × 4 (UART/SPI/I²C/Smart Card), SPI × 1, I²C × 1 - delivers multi-protocol serial interfacing for sensor hubs, displays, and legacy peripherals. |
| HMI & Security | CTSU2 (20 touch channels), AES128/256, TRNG - enables robust capacitive touch UIs and cryptographic key generation for secure boot and data encryption. |
| Power & Temp | VCC = 1.6–5.5 V; Ta = –40°C to +85°C; 48-pin HWQFN (7 mm × 7 mm, 0.5 mm pitch) - suitable for compact, wide-input industrial and consumer edge devices. |
Pinout & Package
Packaged in a 48-pin HWQFN (7 mm × 7 mm, 0.5 mm pitch) with exposed die pad recommended for VSS connection. Features 37 general-purpose I/O pins, 3× 5-V-tolerant inputs, 26× N-ch open-drain outputs, and integrated debug (SWDIO/SWCLK) and touch (TSxx/CAP) pins.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dual VCC pins (pins 1, 48) and three VSS pins (pins 2, 24, 47) enable low-noise analog/digital separation and stable decoupling. |
| SWDIO / SWCLK | Debug interface | Standard 2-pin Serial Wire Debug (SW-DP) for non-intrusive programming and real-time trace via CoreSight MTB-M23. |
| P010/VREFH0 / P011/VREFL0 | ADC reference | Configurable analog reference inputs supporting external or internal VREF; essential for accurate 12-bit ADC measurements across voltage ranges. |
| TS00–TS18, TS21–TS25 | Capacitive touch sense | 20 dedicated CTSU2 input pins (e.g., TS00, TS02-CFC, TS04–TS07) enable robust proximity/touch detection with noise immunity and auto-calibration. |
| GTIOCnA/B (n=0,4–9) | PWM I/O | 12-channel PWM output compare pins supporting complementary outputs, dead-time insertion, and BLDC motor phase control (U/V/W). |
| AGTIO0/AGTIO1 | Low-power timer I/O | External event capture and pulse output pins for AGT timers - used for wake-on-event, pulse-width measurement, or low-power periodic signaling. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | Sub-100 µA/MHz active current and <1 µA deep-sleep mode with AGT wake capability - extends battery life in coin-cell-powered IoT endpoints. |
| Integrated capacitive touch | CTSU2 supports 20 independent touch channels with built-in noise rejection, auto-tuning, and proximity detection - eliminates need for external touch controllers. |
| Hardware security engine | AES128/256 acceleration + True Random Number Generator (TRNG) - enables fast, FIPS-compliant encryption and secure key derivation for TLS and OTA updates. |
| Safety-certified peripherals | SRAM parity, flash protection, ADC self-test, IWDT with independent clock, and CAC - meets IEC 61508 SIL-2 and ISO 26262 ASIL-B readiness requirements. |
| Flexible clock architecture | Multiple on-chip oscillators (HOCO/MOCO/LOCO/SOSC) with trim and CAC-based accuracy validation - ensures reliable timing across voltage/temperature without external crystals. |
Applications
| Smart Home Thermostat | Industrial Sensor Node |
|---|---|
Use Scenario: Compact wall-mounted thermostat with capacitive touch buttons, ambient temperature/humidity sensing, and wireless connectivity. IC Role / Device Role / Timing Role: Main system controller handling touch UI, ADC sampling, RTC scheduling, and SPI/I²C peripheral management. Use Value: CTSU2 enables seamless glass-front touch interface; 12-bit ADC and TSN deliver ±0.5°C temperature accuracy; low-power modes extend battery life to >2 years. |
Use Scenario: Battery-powered vibration/temperature node deployed in factory machinery for predictive maintenance. IC Role / Device Role / Timing Role: Edge data aggregator performing analog sensor conditioning, event-triggered sampling, and secure data packaging before transmission. Use Value: Dual AGT timers enable precise wake-on-vibration events; AES+TRNG secures sensor data payloads; 48-MHz core processes FFTs locally before upload. |
| Medical Wearable Monitor | White Goods Control Panel |
Use Scenario: Disposable ECG patch with dry-electrode sensing, motion compensation, and Bluetooth LE interface. IC Role / Device Role / Timing Role: Signal acquisition MCU managing analog front-end, motion sensor fusion, and low-energy BLE packet formatting. Use Value: ACMPLP compares electrode impedance in real time; CTSU2 detects skin contact; 16-KB SRAM buffers raw waveform data for burst transmission. |
Use Scenario: Appliance control board for washing machine with rotary encoder, LED display, relay drivers, and water-level sensing. IC Role / Device Role / Timing Role: Central HMI and motor control unit coordinating user input, display updates, pump/valve actuation, and fault diagnostics. Use Value: GPT16 × 6 generates synchronized PWM for brushless drum motor; SCI × 4 handles UART debug, I²C display, and SPI EEPROM; 5-V-tolerant I/O interfaces directly with legacy logic. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FA2E1A93CNE#AA0 | Same RA2E1 family, identical 48-pin HWQFN package and peripherals, but rated for –40°C to +105°C industrial extended temperature range. | Required for high-ambient environments (e.g., under-hood automotive, industrial ovens) where +85°C is insufficient. | Select R7FA2E1A93CNE#AA0 when operating ambient exceeds +85°C; all firmware and PCB layout remain identical. |
| STM32L552REY6Q | Arm Cortex-M33 core, 320-KB flash, 256-KB SRAM, TrustZone, but no integrated CTSU2 and higher active power (~110 µA/MHz). | Better suited for complex secure boot + RTOS applications requiring larger memory, but lacks native capacitive touch support. | Choose STM32L552REY6Q only if TrustZone isolation and larger memory outweigh loss of CTSU2 and higher power consumption. |
Compared with R7FA2E1A93CNE#AA0, the R7FA2E1A92DNE#AA0 offers identical functionality at lower cost for standard industrial temperature use; versus STM32L552REY6Q, it delivers superior integration for touch-centric designs with lower power and smaller footprint, albeit with less memory headroom.
Availability
R7FA2E1A92DNE#AA0 is available at Aetrix Electronics and suitable for smart home thermostats, industrial sensor nodes, medical wearables, and white goods control panels requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for R7FA2E1A92DNE#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 specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.
The RA2E1 group, including R7FA2E1A92DNE#AA0, was designed specifically for cost-sensitive, ultra-low-power embedded applications demanding integrated touch, security, and functional safety - targeting battery-operated edge devices and HMI-rich industrial controls.
FAQ
What is the maximum operating frequency and core architecture of the R7FA2E1A92DNE#AA0?
The R7FA2E1A92DNE#AA0 features an Arm Cortex-M23 core operating at up to 48 MHz, based on the Armv8-M architecture with Memory Protection Unit (MPU) and TrustZone-ready instruction set. This enables deterministic real-time performance, memory isolation, and secure firmware partitioning - essential for certified industrial and medical applications.
Does the R7FA2E1A92DNE#AA0 support capacitive touch sensing, and how many channels are available?
Yes, the R7FA2E1A92DNE#AA0 integrates the Capacitive Sensing Unit version 2 (CTSU2), supporting up to 20 independent touch channels. Pin assignments include TS00, TS02-CFC, TS04–TS07, TS08-CFC–TS16-CFC, TS17–TS18, and TS21–TS25 - enabling robust glass-front touch interfaces without external controllers.
What are the memory resources available on the R7FA2E1A92DNE#AA0?
The R7FA2E1A92DNE#AA0 provides 128-KB of code flash memory, 4-KB of data flash memory (rated for 100,000 program/erase cycles), and 16-KB of on-chip SRAM with parity protection. These resources support firmware updates, parameter storage, and error-detectable runtime data handling in safety-critical deployments.
Which communication interfaces does the R7FA2E1A92DNE#AA0 support, and how many instances are included?
The R7FA2E1A92DNE#AA0 supports Serial Communications Interface (SCI) × 4 - configurable as UART, SPI, I²C, or Smart Card; plus dedicated I²C × 1 and SPI × 1 modules. This enables concurrent interfacing with displays, sensors, EEPROMs, and wireless modules while maintaining low software overhead via ELC-triggered transfers.
What safety and security features are implemented in the R7FA2E1A92DNE#AA0?
The R7FA2E1A92DNE#AA0 includes SRAM parity checking, flash area protection, ADC self-diagnosis, Clock Frequency Accuracy Measurement Circuit (CAC), Independent Watchdog Timer (IWDT) with dedicated oscillator, and hardware AES128/256 + TRNG. These features collectively support IEC 61508 SIL-2 and ISO 26262 ASIL-B functional safety development.
R7FA2E1A92DNE#AA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-WFQFN Exposed Pad
- Series:
- RA2E1
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M23
- Core Size:
- 32-Bit Single-Core
- Speed:
- 48MHz
- Connectivity:
- I2C, SmartCard, SPI, UART/USART
- Peripherals:
- AES, Capacitive Touch, DMA, LVD, POR, PWM, Temp Sensor, TRNG, WDT
- Number of I/O:
- 37
- 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 13x12b SAR
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7FA2E1A92DNE#AA0 FAQ
1.How can I place an order for R7FA2E1A92DNE#AA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA2E1A92DNE#AA0 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 R7FA2E1A92DNE#AA0 reliable?
The price and inventory of R7FA2E1A92DNE#AA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA2E1A92DNE#AA0 is usually 5 days.
3.What payment methods are accepted for R7FA2E1A92DNE#AA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FA2E1A92DNE#AA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FA2E1A92DNE#AA0?
R7FA2E1A92DNE#AA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FA2E1A92DNE#AA0 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 R7FA2E1A92DNE#AA0?
For technical support, including R7FA2E1A92DNE#AA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA2E1A92DNE#AA0 requirements.
6.How does Aetrix verify that R7FA2E1A92DNE#AA0 is sourced from the original manufacturer or authorized distributors?
All R7FA2E1A92DNE#AA0 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 R7FA2E1A92DNE#AA0 meets industry standards.
7.What is the process for return or replacement of R7FA2E1A92DNE#AA0?
All R7FA2E1A92DNE#AA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA2E1A92DNE#AA0, 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 R7FA2E1A92DNE#AA0 part is unused and in its original packaging.
Return procedure for R7FA2E1A92DNE#AA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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