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Renesas R7FA2E3052DFJ#BA0
- Part No.:
- R7FA2E3052DFJ#BA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 32-LQFP
- Datasheet:
-
R7FA2E3052DFJ#BA0.pdf
- Description:
- MCU RA2E3 ARM CM23 48MHZ 32K/16K
- Quantity:
- Payment:
- Shipping:
Inventory:3,240
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Product details
Overview
R7FA2E3052DFJ#BA0 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, flash protection, and CAC-based clock accuracy monitoring - deployed in industrial sensor nodes requiring long battery life and functional safety compliance.
For engineers reviewing the R7FA2E3052DFJ#BA0 datasheet, R7FA2E3052DFJ#BA0 pinout, R7FA2E3052DFJ#BA0 application, or R7FA2E3052DFJ#BA0 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 watchdog timers (WDT/IWDT), and hardware safety accelerators (CRC, DOC, AGT) for IEC 61508-compliant embedded control.
Technical Context
The R7FA2E3052DFJ#BA0 implements the Armv8-M architecture with Memory Protection Unit (MPU) supporting 8 regions, enabling secure partitioning of firmware and data. Its clock system integrates HOCO (48 MHz), LOCO (32.768 kHz), and SOSC for RTC synchronization, with CAC providing real-time clock frequency validation against reference oscillators.
Peripheral integration includes four SCI modules (supporting UART, SPI, I²C, smart card), one dedicated I²C bus interface, one SPI channel, two AGT timers for low-power event counting, six GPT16 channels (7 PWM outputs), and a 37-pin I/O capability on 48-pin variants - though R7FA2E3052DFJ#BA0 uses the 32-pin LQFP variant with 23 GPIOs, 3 5-V-tolerant pins, and 15 N-ch open-drain outputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | Arm Cortex-M23, 48 MHz max - enables deterministic real-time execution with TrustZone-M support for secure boot and peripheral isolation. |
| Memory | 32-KB code flash / 2-KB data flash / 16-KB SRAM with parity - supports field firmware updates, parameter storage, and error-detectable runtime data buffers. |
| ADC | 12-bit successive-approximation ADC with 10 analog inputs - delivers ±1 LSB INL for precision sensor signal acquisition in environmental monitoring. |
| Safety | CAC, CRC calculator, DOC, IWDT, SRAM parity, flash area protection - satisfies ASIL-B decomposition requirements for functional safety without external co-processors. |
| Package | 32-pin LQFP (7 mm × 7 mm, 0.8 mm pitch), industrial temp (-40°C to +85°C) - compatible with standard reflow profiles and legacy PCB tooling. |
| I/O | 23 general-purpose I/O pins, 3 5-V-tolerant, 15 N-ch open-drain - simplifies level-shifting for mixed-voltage sensor interfaces and LED drivers. |
| Supply | 1.6 V to 5.5 V operation - eliminates need for external voltage regulators in battery-powered or multi-rail systems. |
Pinout & Package
Package: 32-pin LQFP (PLQP0032GB-A), 7 mm × 7 mm, 0.8 mm pitch, exposed pad not present - suitable for automated optical inspection and standard pick-and-place assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P000–P015 | General-purpose I/O | Configurable as digital input/output, pull-up enabled, 5-V tolerant on P400/P401/P407 (not present on 32-pin variant); P010/P011 serve dual role as VREFH0/VREFL0 for ADC reference. |
| P100–P112 | GPIO / Peripheral multiplex | Support SCI0–SCI2, I²C0, SPIA, AGTIO0/AGTEE0, GPT16 channels, IRQ0–IRQ7, KR00–KR04 - enables flexible peripheral routing without external logic. |
| XTAL/EXTAL | Main clock oscillator interface | Drives 1–20 MHz crystal or accepts external clock; paired with XCIN/XCOUT (32.768 kHz sub-clock) for RTC and low-power wake-up timing. |
| SWDIO/SWCLK | ARM Serial Wire Debug | Enables non-intrusive debugging, flash programming, and real-time trace via standard CMSIS-DAP tools - no JTAG header required. |
| VCC/VSS/AVCC0/AVSS0 | Power domains | Dual power rails: VCC powers digital logic; AVCC0/AVSS0 isolate analog ADC circuitry - mandatory 0.1 µF decoupling per domain for noise immunity. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | Sub-µA deep-sleep current with RTC and AGT active - extends coin-cell battery life beyond 10 years in wireless sensor endpoints. |
| Hardware safety acceleration | Dedicated CRC, DOC, and CAC circuits offload CPU for runtime integrity checks - reduces software overhead in SIL2-certified firmware stacks. |
| Flexible timer subsystem | GPT16 × 6 (7 PWM outputs) + AGT × 2 + RTC - supports motor control commutation, pulse-width measurement, and calendar-aware scheduling in one chip. |
| Robust communication suite | SCI × 3 (UART/SPI/I²C/smart card), I²C × 1, SPI × 1 - enables simultaneous connection to UART sensors, I²C EEPROMs, and SPI displays without protocol translation. |
| Secure memory protection | Arm MPU (8 regions) + register write protection (PRCR) + flash lock bits - prevents accidental or malicious overwrites of bootloader and safety-critical variables. |
Applications
| Industrial Sensor Node | Smart Meter Interface Module |
|---|---|
Use Scenario: Battery-powered temperature/humidity sensor transmitting data via LoRaWAN every 15 minutes. IC Role / Device Role / Timing Role: Main controller executing sensor readout, CRC-protected data packaging, low-power RTC wake-up, and SCI-driven LoRa module control. Use Value: 32-KB flash stores LoRa stack + sensor calibration tables; 16-KB SRAM buffers encrypted payloads; AGT timers enable precise sleep/wake cycles reducing average current to 1.2 µA. |
Use Scenario: DIN-rail mounted electricity meter add-on board handling pulse counting, tariff switching, and RS-485 communication. IC Role / Device Role / Timing Role: Isolated interface MCU managing opto-isolated kWh pulse inputs, real-time tariff schedule via RTC, and half-duplex RS-485 SCI framing. Use Value: 10-channel ADC monitors auxiliary voltages; IWDT ensures fail-safe reset during power glitches; 5-V-tolerant pins interface directly with legacy meter pulse outputs without level shifters. |
| Medical Wearable Monitor | Home Appliance Control Panel |
Use Scenario: Disposable ECG patch acquiring analog biopotentials, performing on-device QRS detection, and BLE advertising alerts. IC Role / Device Role / Timing Role: Signal acquisition MCU running ADC-triggered AGT sampling, DOC-based waveform analysis, and SCI-driven BLE UART bridge. Use Value: 12-bit ADC achieves 70 dB SNR for clean ECG digitization; CAC validates internal clock stability before each measurement burst; SRAM parity prevents corrupted heartbeat calculations. |
Use Scenario: Microwave oven control board managing keypad scan, display backlight PWM, relay drivers, and thermal cutoff monitoring. IC Role / Device Role / Timing Role: System-on-chip replacing discrete logic and 8-bit MCUs, using GPT16 for 20-kHz display dimming, SCI for touch controller comms, and WDT for cooking timeout enforcement. Use Value: 23 GPIOs drive 4×4 keypad matrix, 3-digit LED display, and 6 relay drivers; 1.6–5.5 V operation tolerates brown-out during compressor startup; LVD0/LVD1 detect undervoltage before thermal fault escalation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FA2E3072DFJ#BA0 | 64-KB flash, same 32-pin LQFP package, identical peripherals and safety features | Supports larger firmware images (e.g., OTA update stacks, cryptographic libraries) | Select when future firmware expansion or secure boot signing requires >32 KB code space. |
| R7FA2E2052DFJ#BA0 | Same 32-pin LQFP, 32-KB flash, but lacks CAC, DOC, and AGT timers; only 1 GPT16 channel | Targeted at cost-sensitive non-safety applications (e.g., basic appliance remotes) | Choose only if safety certification is unnecessary and timer count is sufficient for the design. |
Compared with R7FA2E3052DFJ#BA0, the R7FA2E3072DFJ#BA0 offers double flash capacity without layout changes, while the R7FA2E2052DFJ#BA0 reduces BOM cost by omitting safety accelerators - making R7FA2E3052DFJ#BA0 the optimal balance of certified safety, peripheral richness, and footprint efficiency for industrial edge nodes.
Availability
R7FA2E3052DFJ#BA0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart meter interface modules, medical wearable monitors, and home appliance control panels requiring stable component supply across multi-year production cycles.
Supply support for R7FA2E3052DFJ#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 is a global semiconductor leader specializing in microcontrollers, analog, and power solutions for automotive, industrial, and IoT markets - with over 40 years of embedded systems expertise.
The RA2E3 Group targets ultra-low-power, safety-aware applications in industrial automation and consumer health devices, emphasizing energy efficiency, functional safety certification readiness, and seamless scalability within the RA family.
FAQ
What is the maximum operating frequency and core architecture of the R7FA2E3052DFJ#BA0?
The R7FA2E3052DFJ#BA0 features an Arm Cortex-M23 core compliant with the Armv8-M architecture and operates at a maximum frequency of 48 MHz. This enables high-efficiency real-time processing while maintaining low dynamic power consumption - critical for battery-operated devices where R7FA2E3052DFJ#BA0 is commonly deployed in sensor fusion and edge analytics roles.
Does the R7FA2E3052DFJ#BA0 support functional safety standards such as IEC 61508?
Yes, the R7FA2E3052DFJ#BA0 includes multiple hardware safety features required for IEC 61508 SIL2 implementation: SRAM parity checking, flash area protection, Clock Frequency Accuracy Measurement Circuit (CAC), CRC calculator, Data Operation Circuit (DOC), and Independent Watchdog Timer (IWDT). These are documented in the R01DS0411EJ0130 datasheet and form the basis for certified safety firmware stacks using R7FA2E3052DFJ#BA0.
What package type and pin count does the R7FA2E3052DFJ#BA0 use?
The R7FA2E3052DFJ#BA0 uses a 32-pin LQFP package (PLQP0032GB-A) with 7 mm × 7 mm dimensions and 0.8 mm pitch. It provides 23 general-purpose I/O pins, 3 5-V-tolerant inputs, and 15 N-channel open-drain outputs - matching legacy footprint requirements while delivering modern Arm-based performance and safety features in the R7FA2E3052DFJ#BA0.
How much flash and RAM memory does the R7FA2E3052DFJ#BA0 include?
The R7FA2E3052DFJ#BA0 integrates 32-KB of code flash memory, 2-KB of data flash memory (rated for 100,000 program/erase cycles), and 16-KB of on-chip SRAM with parity protection. This memory configuration supports robust firmware partitioning, secure parameter storage, and reliable runtime data handling - all essential for long-lifecycle deployments where R7FA2E3052DFJ#BA0 serves as the primary controller.
Which analog peripherals are available on the R7FA2E3052DFJ#BA0?
The R7FA2E3052DFJ#BA0 includes a 12-bit successive-approximation ADC (ADC12) with 10 selectable analog input channels (AN000–AN002, AN005–AN010), internal temperature sensor (TSN), and dedicated analog power rails (AVCC0/AVSS0). These enable precision environmental sensing and self-monitoring - directly supporting applications like battery health tracking and ambient condition logging where R7FA2E3052DFJ#BA0 acts as the analog front-end processor.
R7FA2E3052DFJ#BA0 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#BA0 FAQ
1.How can I place an order for R7FA2E3052DFJ#BA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA2E3052DFJ#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 R7FA2E3052DFJ#BA0 reliable?
The price and inventory of R7FA2E3052DFJ#BA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA2E3052DFJ#BA0 is usually 5 days.
3.What payment methods are accepted for R7FA2E3052DFJ#BA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FA2E3052DFJ#BA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FA2E3052DFJ#BA0?
R7FA2E3052DFJ#BA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FA2E3052DFJ#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 R7FA2E3052DFJ#BA0?
For technical support, including R7FA2E3052DFJ#BA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA2E3052DFJ#BA0 requirements.
6.How does Aetrix verify that R7FA2E3052DFJ#BA0 is sourced from the original manufacturer or authorized distributors?
All R7FA2E3052DFJ#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 R7FA2E3052DFJ#BA0 meets industry standards.
7.What is the process for return or replacement of R7FA2E3052DFJ#BA0?
All R7FA2E3052DFJ#BA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA2E3052DFJ#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 R7FA2E3052DFJ#BA0 part is unused and in its original packaging.
Return procedure for R7FA2E3052DFJ#BA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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