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Renesas R7FA2E3052DFJ#AA0
- Part No.:
- R7FA2E3052DFJ#AA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 32-LQFP
- Datasheet:
-
R7FA2E3052DFJ#AA0.pdf
- Description:
- MCU RA2E3 ARM CM23 48MHZ 32K/16K
- Quantity:
- Payment:
- Shipping:
Inventory:3,393
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Product details
Overview
R7FA2E3052DFJ#AA0 from Renesas is an ultra-low-power 32-bit Arm® Cortex®-M23 microcontroller operating at up to 48 MHz, featuring 32-KB code flash, 16-KB SRAM, a 12-bit ADC with 10 input channels, and integrated safety functions including SRAM parity, CAC, CRC, and IWDT - deployed in industrial sensor nodes and battery-powered HMI interfaces.
For engineers reviewing the R7FA2E3052DFJ#AA0 datasheet, R7FA2E3052DFJ#AA0 pinout, R7FA2E3052DFJ#AA0 application, or R7FA2E3052DFJ#AA0 equivalent, key selection criteria include its 32-pin LQFP package, -40°C to +85°C temperature grade, 1.6–5.5 V wide supply range, dual-clock domain support (HOCO/MOCO/LOCO/SOSC), and hardware safety accelerators for functional safety compliance.
Technical Context
The R7FA2E3052DFJ#AA0 implements Armv8-M architecture with Memory Protection Unit (8 regions) and CoreSight™ MTB-M23 trace, enabling secure, deterministic real-time execution. Its clock system integrates four on-chip oscillators (HOCO up to 48 MHz, MOCO at 8 MHz, LOCO at 32.768 kHz, IWDT-dedicated 15 kHz) plus external crystal support (1–20 MHz MOSC, 32.768 kHz SOSC), all configurable via register-based trim and switching.
Safety-critical subsystems include independent watchdog timer (IWDT) with dedicated oscillator, Clock Frequency Accuracy Measurement Circuit (CAC) for runtime clock validation, Data Operation Circuit (DOC) for 16-bit arithmetic/interrupt generation, and Port Output Enable for GPT (POEG) to safely disable PWM outputs during fault conditions - all designed to meet IEC 61508 SIL2 and ISO 26262 ASIL-B readiness requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M23 @ 48 MHz max; supports TrustZone for secure firmware partitioning and MPU-enforced memory isolation. |
| Memory | 32-KB code flash (100k erase cycles), 2-KB data flash, 16-KB SRAM with parity - enables robust firmware updates and data logging in field-deployed devices. |
| Analog | 12-bit ADC12 with 10 selectable inputs, internal reference, and temperature sensor (TSN); supports single-shot and continuous scan modes for sensor fusion. |
| Timers | GPT32 × 1 (2-channel PWM), GPT16 × 6 (7-channel PWM), AGT × 2 (low-power asynchronous timing), RTC with calendar mode - suitable for motor control, power sequencing, and time-stamped event logging. |
| Connectivity | SCI × 3 (UART/IIC/SPI/Smart Card), IIC × 1 (NXP-compatible), SPI × 1 - provides flexible peripheral bridging without external level shifters. |
| Power & Safety | 1.6–5.5 V operation; LVD with three thresholds (LVD0/LVD1/LVD2); CAC, CRC, DOC, IWDT, register write protection - meets industrial brown-out and fault-detection requirements. |
| I/O | 23 GPIO pins (37 total I/O in 48-pin variants); 15 N-ch open-drain outputs; 1 × 5-V tolerant pin (P407); pull-up resistors on all GPIO - simplifies interface to legacy 5-V sensors and logic. |
Pinout & Package
Package: 32-pin LQFP (7 mm × 7 mm, 0.8 mm pitch), RoHS-compliant Sn finish, industrial-grade (-40°C to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P000–P015, P100–P112, P200–P215, P300–P302, P400–P409, P500, P913–P915 | General-purpose I/O | 23 configurable GPIOs with programmable drive strength, pull-up, open-drain, and 5-V tolerance on P407 - supports mixed-voltage system interfacing. |
| VCC / VSS / AVCC0 / AVSS0 / VREFH0 / VREFL0 | Power & analog reference | Dual-domain power (digital/analog) with separate 0.1-µF decoupling per domain; VREFH0 adjustable from 1.6 V to AVCC0 - ensures stable ADC accuracy across supply variations. |
| XTAL / EXTAL / XCIN / XCOUT / CLKOUT | Clock sources | Supports external crystal (1–20 MHz), sub-clock (32.768 kHz), and four precision on-chip oscillators - enables seamless clock failover and low-power RTC operation. |
| SWDIO / SWCLK / RES / MD | Debug & system control | 2-pin Serial Wire Debug (SWD) interface; active-low reset with glitch filtering; MD pin selects boot mode - enables in-field firmware recovery and secure production programming. |
| AN000–AN002, AN005–AN010, AN019–AN022 | ADC inputs | 10 dedicated analog input channels (not all available in 32-pin variant); includes internal TSN and VREF monitoring - eliminates need for external temperature sensing in cost-sensitive designs. |
| GTIOCnA/B, GTETRGA/B, GTOUUP/ULO, etc. | PWM & motor control | GPT16 × 6 provides 7 PWM outputs; supports 3-phase BLDC commutation via complementary U/V/W outputs - enables compact fan or pump drivers without external gate drivers. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | Active current as low as 82 µA/MHz (HOCO @ 48 MHz); standby current < 0.5 µA with RTC running - extends battery life in wireless sensor nodes beyond 5 years. |
| Hardware safety acceleration | CAC validates clock accuracy in real time; CRC calculator supports LSB/MSB-first and multiple polynomials; DOC performs 16-bit compare/add/subtract with interrupt - reduces CPU load for IEC 61508 diagnostics. |
| Flexible clock management | Four independent on-chip oscillators (HOCO/MOCO/LOCO/IWDT-OSC) with software-trimmable frequency; automatic failover to backup clock on main oscillator stop - ensures deterministic timing under voltage transients. |
| Robust I/O architecture | 23 GPIOs with individually configurable drive strength, slew rate, pull-up/down, and open-drain; one 5-V tolerant pin (P407) - interfaces directly to industrial 5-V sensors and PLC-level signals without level-shifting components. |
| Integrated analog subsystem | 12-bit ADC12 with 10 channels, internal temperature sensor, and selectable reference (VREFH0 or AVCC0); supports hardware-triggered conversion via ADTRG0 - enables precise environmental monitoring with minimal BOM count. |
Applications
| Industrial Sensor Node | Smart Thermostat Controller |
|---|---|
Use Scenario: Battery-powered temperature/humidity/pressure sensor node transmitting data via UART-to-LoRaWAN gateway every 10 minutes. IC Role / Device Role / Timing Role: Main controller executing sensor acquisition, CRC-protected data packaging, and low-power sleep/wake scheduling using AGT and RTC. Use Value: 0.5 µA standby current with RTC enables >5-year CR2032 battery life; 12-bit ADC and TSN provide ±0.5°C measurement accuracy without external calibration. | Use Scenario: Residential HVAC controller with touch HMI, local PID loop, and cloud connectivity via UART-to-WiFi module. IC Role / Device Role / Timing Role: System-on-chip managing display refresh, button debounce, temperature feedback sampling, and serial protocol translation. Use Value: 32-KB flash hosts full RTOS + OTA update stack; 23 GPIOs drive capacitive touch overlay and relay drivers; 5-V tolerant P407 interfaces to legacy HVAC control bus. |
| Programmable Logic Relay | Energy Meter Front-End |
Use Scenario: DIN-rail mounted relay module accepting digital inputs, executing user-defined logic (AND/OR/timers), and driving 24-V DC outputs. IC Role / Device Role / Timing Role: Real-time logic engine using GPT16 timers for precise on/off delays and ICU for edge-triggered input capture. Use Value: Independent Watchdog Timer (IWDT) with dedicated oscillator guarantees safe reset on firmware hang; register write protection prevents accidental configuration corruption. | Use Scenario: AC energy meter front-end acquiring voltage/current waveforms via external ADCs, computing RMS/power, and communicating via I2C to host MCU. IC Role / Device Role / Timing Role: Precision timing and data co-processor synchronizing sampling clocks (via CAC), calculating CRC on metering data, and buffering results in SRAM. Use Value: CAC validates 32.768 kHz RTC clock against HOCO for accurate time-of-use billing; CRC calculator offloads host MCU from checksum computation on 128-byte frames. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FA2E3053CFJ#AA0 | Same 32-pin LQFP package and peripherals, but rated for -40°C to +105°C and features 64-KB flash (vs. 32-KB). | Required for extended-temperature industrial environments (e.g., outdoor utility meters) and larger firmware footprints. | Select when ambient operating temperature exceeds +85°C or firmware size exceeds 32 KB. |
| R7FA2E1052DFJ#AA0 | RA2E1 family part; same 32-pin LQFP, 32-KB flash, and -40°C to +85°C rating, but uses Cortex-M23 at 24 MHz and lacks CAC, DOC, and AGT timers. | Suitable for non-safety-critical consumer HMI where clock accuracy validation and advanced safety diagnostics are not required. | Select only if functional safety certification (IEC 61508/ISO 26262) is unnecessary and lower performance suffices. |
Compared with R7FA2E3053CFJ#AA0, the R7FA2E3052DFJ#AA0 trades flash capacity and temperature range for lower cost and optimized power efficiency in commercial-grade applications; versus R7FA2E1052DFJ#AA0, it adds critical safety accelerators (CAC, DOC, IWDT) and higher clock speed for deterministic real-time control.
Availability
R7FA2E3052DFJ#AA0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart thermostat controllers, and programmable logic relays requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant manufacturing.
Supply support for R7FA2E3052DFJ#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 is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.
The RA2E3 Group targets cost-sensitive, ultra-low-power embedded applications demanding functional safety readiness, with the R7FA2E3052DFJ#AA0 optimized for industrial controls and battery-operated endpoints requiring robustness and certification support.
FAQ
What is the maximum operating frequency and core architecture of the R7FA2E3052DFJ#AA0?
The R7FA2E3052DFJ#AA0 features an Arm Cortex-M23 core operating at up to 48 MHz, implementing the Armv8-M architecture with Memory Protection Unit (MPU) supporting 8 memory regions. It delivers deterministic real-time performance with single-cycle integer multiply and 19-cycle divide, validated for use in safety-critical industrial firmware stacks.
Does the R7FA2E3052DFJ#AA0 support hardware-based functional safety features?
Yes, the R7FA2E3052DFJ#AA0 integrates multiple hardware safety features including Clock Frequency Accuracy Measurement Circuit (CAC), Cyclic Redundancy Check (CRC) calculator, Data Operation Circuit (DOC), Independent Watchdog Timer (IWDT) with dedicated oscillator, SRAM parity checking, and register write protection - collectively enabling IEC 61508 SIL2 and ISO 26262 ASIL-B compliance pathways.
What are the analog capabilities of the R7FA2E3052DFJ#AA0?
The R7FA2E3052DFJ#AA0 includes a 12-bit successive approximation ADC (ADC12) with 10 selectable input channels (AN000–AN002, AN005–AN010, AN019–AN022), internal temperature sensor (TSN), and dual-reference support (VREFH0 or AVCC0). It supports hardware-triggered conversions via ADTRG0 and operates across the full 1.6–5.5 V supply range.
Which communication interfaces are available on the R7FA2E3052DFJ#AA0?
The R7FA2E3052DFJ#AA0 provides SCI × 3 (supporting UART, simple I²C, simple SPI, and smart card protocols), I²C bus interface × 1 (NXP-compatible), and SPI × 1. All interfaces operate across the full 1.6–5.5 V supply range, with SCI channels offering FIFO buffers and independent baud rate generation for reliable multi-protocol bridging.
What is the package type and pin count of the R7FA2E3052DFJ#AA0?
The R7FA2E3052DFJ#AA0 uses a 32-pin LQFP package (7 mm × 7 mm, 0.8 mm pitch), RoHS-compliant with Sn-only terminal finish. It provides 23 general-purpose I/O pins, 3 analog inputs, and dedicated debug (SWDIO/SWCLK), reset (RES), and clock (XTAL/EXTAL/XCIN/XCOUT) terminals - optimized for compact industrial PCB layouts.
R7FA2E3052DFJ#AA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 32-LQFP
- Series:
- RA2E3
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- ARM® Cortex®-M23
- Core Size:
- 32-Bit
- Speed:
- 48MHz
- Connectivity:
- I2C, SCI, SPI, UART/USART
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 23
- Program Memory Size:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 2K x 8
- RAM Size:
- 16K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 10x12b SAR
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7FA2E3052DFJ#AA0 FAQ
1.How can I place an order for R7FA2E3052DFJ#AA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA2E3052DFJ#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 R7FA2E3052DFJ#AA0 reliable?
The price and inventory of R7FA2E3052DFJ#AA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA2E3052DFJ#AA0 is usually 5 days.
3.What payment methods are accepted for R7FA2E3052DFJ#AA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FA2E3052DFJ#AA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FA2E3052DFJ#AA0?
R7FA2E3052DFJ#AA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FA2E3052DFJ#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 R7FA2E3052DFJ#AA0?
For technical support, including R7FA2E3052DFJ#AA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA2E3052DFJ#AA0 requirements.
6.How does Aetrix verify that R7FA2E3052DFJ#AA0 is sourced from the original manufacturer or authorized distributors?
All R7FA2E3052DFJ#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 R7FA2E3052DFJ#AA0 meets industry standards.
7.What is the process for return or replacement of R7FA2E3052DFJ#AA0?
All R7FA2E3052DFJ#AA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA2E3052DFJ#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 R7FA2E3052DFJ#AA0 part is unused and in its original packaging.
Return procedure for R7FA2E3052DFJ#AA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R7FA2E3052DFJ#AA0 Tags
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