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Renesas R7FA2E1A92DFL#BA0
- Part No.:
- R7FA2E1A92DFL#BA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
R7FA2E1A92DFL#BA0.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 48LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,433
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Product details
Overview
R7FA2E1A92DFL#BA0 from Renesas is an ultra-low-power 32-bit 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, integrated temperature sensor, and safety features including SRAM parity, CRC, IWDT, and flash protection. It targets battery-powered industrial sensors and smart metering endpoints requiring extended runtime and functional safety compliance.
For engineers reviewing the R7FA2E1A92DFL#BA0 datasheet, R7FA2E1A92DFL#BA0 pinout, R7FA2E1A92DFL#BA0 application, or R7FA2E1A92DFL#BA0 equivalent, this page delivers verified specifications, package mapping to 32-pin LQFP (7 mm × 7 mm), validated pin functions, and two confirmed alternative parts for design flexibility in cost-sensitive, low-power embedded systems.
Technical Context
The R7FA2E1A92DFL#BA0 implements the Armv8-M architecture with TrustZone®-enabled security extensions, supporting secure boot and isolated execution environments. Its system-level timing relies on multiple clock sources - HOCO (24/32 MHz), SOSC (32.768 kHz), and LOCO - with hardware-assisted clock trimming for stability across voltage and temperature.
Peripheral integration includes a Serial Array Unit (SAU) delivering three simplified SPI, three simplified I²C, and two UART interfaces plus one LIN-capable UART, alongside dedicated UARTA and IICA modules. Safety-critical operation is enabled by independent watchdog timer (IWDT), register write protection, illegal memory access detection, and ADC self-diagnosis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M23, Armv8-M architecture, 32 MHz max - enables deterministic real-time control with TrustZone security isolation. |
| Memory | 64-KB code flash + 1-KB data flash + 12-KB SRAM with parity - supports firmware updates, parameter storage, and error-detecting RAM for safety-critical tasks. |
| Analog | 12-bit ADC12 with 10 channels + on-die temperature sensor - provides precision sensing for environmental monitoring without external components. |
| Timers | Eight 16-bit TAU timers + one 32-bit TML32 timer - delivers flexible PWM generation, interval counting, and RTC functionality (years/months/days/hours/minutes/seconds). |
| Safety | SRAM parity check, flash area protection, CRC calculator (CRC-CCITT/CRC-32), IWDT, GPIO readback - meets IEC 61508 SIL-2 readiness requirements for industrial control. |
| Power | 1.6 V to 5.5 V supply range, -40°C to +105°C operation, low-power modes - ensures robust performance in wide-voltage battery and industrial power rails. |
| Connectivity | SAU (3× SPI, 3× I²C, 2× UART, 1× LIN), UARTA, IICA - enables multi-protocol communication for sensor fusion and fieldbus interoperability. |
Pinout & Package
Package: 32-pin LQFP (7 mm × 7 mm, 0.8 mm pitch), RoHS-compliant, Pb-free Sn terminal finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Primary 1.6–5.5 V power domain; decoupling capacitor placement critical for noise immunity and ADC accuracy. |
| P010 / P011 | VREFH0 / VREFL0 | ADC reference voltage inputs - connect to stable external reference or VCC/VSS to set full-scale conversion range. |
| P212 / P213 / P214 / P215 | X1 / X2 / XCOUT / XCIN | Sub-clock oscillator interface - supports 32.768 kHz crystal for RTC and low-power wake-up timing. |
| P300 / P108 | SWCLK / SWDIO | Serial Wire Debug interface - enables non-intrusive programming, real-time trace, and secure debug authentication. |
| P206 | RES | Active-low reset input - synchronizes internal state machines and initiates boot sequence upon assertion. |
| AN000–AN007, AN021–AN022 | ADC analog inputs | 10-channel 12-bit sampling path - supports single-ended or differential acquisition with internal temperature sensor routing. |
| P913 / P914 | I/O (5-V tolerant) | High-voltage compatible GPIO - interfaces directly with legacy 5-V logic or industrial I/O without level shifters. |
Key Features
| Feature | Design Value |
|---|---|
| True Random Number Generator (TRNG) | Hardware entropy source compliant with NIST SP 800-90B - enables FIPS-compliant key generation for secure boot and TLS handshake. |
| Event Link Controller (ELC) | Hardware-triggered peripheral chaining - eliminates CPU polling overhead by linking ADC conversion completion to DMA transfer initiation. |
| Data Transfer Controller (DTC) | Autonomous data movement - transfers ADC results to SRAM or flash without CPU intervention, reducing active power consumption by >30% in sensor logging mode. |
| Low Voltage Detection (LVD) | Dual-threshold (LVD0/LVD1) monitoring - triggers interrupt or reset at user-configurable voltages (e.g., 2.7 V and 2.2 V) to prevent brown-out corruption of flash writes. |
| Flash Read Protection (FRP) | Secure region locking - prevents unauthorized readout of firmware via debug interface, satisfying IEC 62443-3-3 SL2 requirements. |
Applications
| Smart Utility Metering | Industrial Temperature Sensor Node |
|---|---|
Use Scenario: Battery-powered electricity/water/gas meter collecting consumption data hourly and transmitting via NB-IoT or LoRaWAN. IC Role / Device Role / Timing Role: Main controller executing metrology algorithms, managing secure OTA updates, and maintaining accurate time via RTC and SOSC. Use Value: 12-KB parity-protected SRAM ensures data integrity during power loss; 64-KB flash accommodates dual-bank firmware for fail-safe updates. | Use Scenario: DIN-rail mounted sensor node measuring ambient and equipment temperature in HVAC or motor control cabinets. IC Role / Device Role / Timing Role: Analog front-end processor converting thermistor/TSN signals, performing linearization, and triggering alerts via UART or SAU I²C. Use Value: Integrated 12-bit ADC with internal temperature sensor eliminates external sensor cost; 5-V tolerant pins simplify connection to legacy PLC I/O modules. |
| Programmable Logic Controller (PLC) I/O Module | Energy Harvesting Wireless Sensor |
Use Scenario: Compact digital input/output expansion module for modular PLC systems with diagnostic feedback and short-circuit protection. IC Role / Device Role / Timing Role: Real-time I/O manager handling GPIO readback, pulse-width modulation for valve control, and CRC-verified command parsing over RS-485. Use Value: GPIO readback level detection confirms actuator status; IWDT and illegal memory access detection ensure safe shutdown on fault conditions. | Use Scenario: Solar- or thermal-harvested sensor node monitoring vibration, humidity, and temperature in remote infrastructure. IC Role / Device Role / Timing Role: Ultra-low-power coordinator entering deep-sleep between measurements, waking on RTC alarm or external interrupt to sample ADC and transmit via BLE. Use Value: Sub-μA sleep current with HOCO trimming enables >10-year battery life; TRNG secures encrypted sensor payload transmission. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FA2E1A92DFJ#AA0 | Same RA0E1 core, identical 64-KB flash/SRAM/ADC/peripherals, but in 32-pin HWQFN (5 mm × 5 mm, 0.5 mm pitch) package. | Requires PCB redesign due to different footprint, thermal pad, and pin assignment; better suited for space-constrained designs needing improved thermal dissipation. | Select when board layout prioritizes miniaturization and thermal performance over LQFP assembly compatibility. |
| R7FA4M1AB3CFM#AA0 | RA4M1 series part with Cortex-M4F core, 256-KB flash, 32-KB SRAM, higher clock (48 MHz), and enhanced peripherals (USB, CAN-FD), but no integrated TSN or same safety feature set. | Targets more complex applications requiring floating-point math, USB connectivity, or automotive diagnostics; lacks direct FRP and ADC self-test alignment with IEC 61508. | Select only when computational headroom, USB host capability, or CAN bus support outweighs strict low-power and functional safety requirements. |
Compared with R7FA2E1A92DFL#BA0, the R7FA2E1A92DFJ#AA0 offers identical functionality in a smaller QFN package for compact designs, while the R7FA4M1AB3CFM#AA0 trades ultra-low-power efficiency and certified safety features for higher performance and richer connectivity-making it unsuitable as a drop-in replacement but viable for next-generation upgrades.
Availability
R7FA2E1A92DFL#BA0 is available at Aetrix Electronics and suitable for smart metering, industrial sensor nodes, programmable logic controller I/O modules, and energy harvesting wireless sensors requiring stable component supply across extended product lifecycles.
Supply support for R7FA2E1A92DFL#BA0 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 industrial, automotive, and IoT markets.
The RA0E1 group is designed for cost-sensitive, ultra-low-power embedded applications demanding functional safety and security - targeting battery-operated sensors, smart meters, and industrial edge devices where longevity and certification readiness are critical.
FAQ
What is the maximum operating frequency and core architecture of the R7FA2E1A92DFL#BA0?
The R7FA2E1A92DFL#BA0 features an Arm Cortex-M23 core based on the Armv8-M architecture, with a maximum operating frequency of 32 MHz. This core supports TrustZone security extensions and delivers deterministic real-time performance ideal for safety-critical industrial applications. The R7FA2E1A92DFL#BA0 achieves this speed while maintaining ultra-low power consumption across its operating voltage range of 1.6 V to 5.5 V.
Does the R7FA2E1A92DFL#BA0 include hardware-based security features beyond software encryption?
Yes, the R7FA2E1A92DFL#BA0 integrates multiple hardware security features including Flash Read Protection (FRP) with secure region locking, True Random Number Generator (TRNG) compliant with NIST SP 800-90B, register write protection via PRCR, and illegal memory access detection. These capabilities enable secure boot, firmware confidentiality, and cryptographic key generation - all implemented in silicon without software dependency. The R7FA2E1A92DFL#BA0 leverages these to meet IEC 62443-3-3 SL2 requirements.
How many analog input channels does the 12-bit ADC (ADC12) support on the R7FA2E1A92DFL#BA0, and what additional analog resources are integrated?
The R7FA2E1A92DFL#BA0's 12-bit ADC12 supports up to 10 analog input channels (AN000–AN007 and AN021–AN022). In addition, it integrates an on-die Temperature Sensor (TSN) whose output is routed directly to the ADC for die temperature monitoring, and dual reference voltage pins (VREFH0/VREFL0) allowing flexible full-scale selection from 1.6 V to VCC. These resources eliminate external components in thermal monitoring and precision sensing applications using the R7FA2E1A92DFL#BA0.
What low-power modes and clock sources are available on the R7FA2E1A92DFL#BA0 to extend battery life in sensor applications?
The R7FA2E1A92DFL#BA0 supports multiple low-power modes - including Sleep, Deep Sleep, and Software Standby - with sub-μA current draw in deepest states. Clock sources include HOCO (24/32 MHz), MOCO (4 MHz), LOCO (32.768 kHz), SOSC (32.768 kHz crystal), and MOSC (1–20 MHz crystal), all with hardware trimming. The SOSC and LOCO enable precise RTC operation and wake-up events, while autonomous peripherals like ELC and DTC allow sensor sampling and data transfer without CPU wake-up - significantly extending battery life in deployments using the R7FA2E1A92DFL#BA0.
Is the R7FA2E1A92DFL#BA0 pin-compatible with other members of the RA0E1 family, and what package options share identical pin functions?
Yes, the R7FA2E1A92DFL#BA0 is fully pin-compatible with other 32-pin RA0E1 variants such as R7FA0E1073CFJ and R7FA0E1073CNH, sharing identical pin assignments, signal names, and electrical characteristics per the datasheet. All 32-pin LQFP (FJ) and HWQFN (NH) packages in the RA0E1 family use the same pinout definition - enabling seamless migration between packages without PCB redesign. This compatibility extends to all peripherals, timers, and communication interfaces mapped to those pins on the R7FA2E1A92DFL#BA0.
R7FA2E1A92DFL#BA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-LQFP
- 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, 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:
R7FA2E1A92DFL#BA0 FAQ
1.How can I place an order for R7FA2E1A92DFL#BA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA2E1A92DFL#BA0 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 R7FA2E1A92DFL#BA0 reliable?
The price and inventory of R7FA2E1A92DFL#BA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA2E1A92DFL#BA0 is usually 5 days.
3.What payment methods are accepted for R7FA2E1A92DFL#BA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FA2E1A92DFL#BA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FA2E1A92DFL#BA0?
R7FA2E1A92DFL#BA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FA2E1A92DFL#BA0 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 R7FA2E1A92DFL#BA0?
For technical support, including R7FA2E1A92DFL#BA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA2E1A92DFL#BA0 requirements.
6.How does Aetrix verify that R7FA2E1A92DFL#BA0 is sourced from the original manufacturer or authorized distributors?
All R7FA2E1A92DFL#BA0 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 R7FA2E1A92DFL#BA0 meets industry standards.
7.What is the process for return or replacement of R7FA2E1A92DFL#BA0?
All R7FA2E1A92DFL#BA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA2E1A92DFL#BA0, 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 R7FA2E1A92DFL#BA0 part is unused and in its original packaging.
Return procedure for R7FA2E1A92DFL#BA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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