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Renesas R7FA2E1A52DFJ#BA0
- Part No.:
- R7FA2E1A52DFJ#BA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 32-LQFP
- Datasheet:
-
R7FA2E1A52DFJ#BA0.pdf
- Description:
- IC MCU 32BIT 32KB FLASH 32LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,993
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Product details
Overview
R7FA2E1A52DFJ#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 R7FA2E1A52DFJ#BA0 datasheet, R7FA2E1A52DFJ#BA0 pinout, R7FA2E1A52DFJ#BA0 application, or R7FA2E1A52DFJ#BA0 equivalent, key selection criteria include its 32-pin LQFP package, -40°C to +105°C operating range, 1.6–5.5 V supply, dual 5-V-tolerant I/O pins, and support for LIN-bus UART in safety-critical embedded control.
Technical Context
The R7FA2E1A52DFJ#BA0 implements the Armv8-M architecture with TrustZone®-enabled security extensions, enabling secure boot and isolated execution environments. Its memory subsystem includes 64-KB code flash with read protection, 1-KB data flash rated for 1 million program/erase cycles, and 12-KB parity-protected SRAM for error detection.
Peripherals are orchestrated via the Event Link Controller (ELC) and Data Transfer Controller (DTC), enabling autonomous peripheral-to-peripheral data movement without CPU intervention. The SAU supports three simplified SPI, three simplified I²C, and two UART interfaces - one of which is LIN-bus compliant - while the dedicated UARTA and IICA modules provide additional serial connectivity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M23 @ 32 MHz max; enables deterministic real-time control with low interrupt latency and TrustZone security partitioning. |
| Memory | 64-KB code flash + 1-KB data flash + 12-KB parity SRAM; supports field firmware updates and robust data logging in harsh environments. |
| Analog | 12-bit ADC with 10 channels + on-die temperature sensor; provides precision sensor interfacing and thermal monitoring without external components. |
| Timers | Eight 16-bit TAU timers + one 32-bit TML32 timer; delivers flexible PWM generation, capture/compare, and high-resolution interval timing for motor control and power management. |
| Safety | SRAM parity check, flash area protection, ADC self-diagnosis, CRC calculator, IWDT, and illegal access detection; meets IEC 61508 SIL2 and ISO 26262 ASIL-B readiness requirements. |
| Power | 1.6–5.5 V operation with multiple low-power modes; achieves sub-μA sleep current enabling multi-year battery life in wireless sensor nodes. |
| Package | 32-pin LQFP (7 mm × 7 mm, 0.8 mm pitch); compatible with standard reflow processes and offers 26 general-purpose I/O pins with 5-V tolerance on two pins. |
Pinout & Package
Package: 32-pin LQFP (PLQP0032GB-A), 7 mm × 7 mm, 0.8 mm pitch, operating temperature range −40°C to +105°C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dual power rails require local 0.1-µF decoupling; VCL pin mandates 0.47–1 µF capacitor to stabilize internal LDO. |
| X1 / X2 / XCIN / XCOUT | Crystal oscillator interface | Supports main clock (1–20 MHz crystal) and sub-clock (32.768 kHz crystal); critical for RTC accuracy and system timing stability. |
| SWDIO / SWCLK | Debug interface | Two-pin Serial Wire Debug port enables full programming, tracing, and real-time register inspection during development and field diagnostics. |
| P010 / P011 | Analog reference | VREFH0 and VREFL0 pins set ADC reference voltage range; must be connected to VCC/VSS or external precision references for <±1 LSB linearity. |
| AN000–AN007, AN021–AN022 | Analog inputs | 10-channel ADC input bank; includes internal temperature sensor output and internal reference voltage selectable as conversion sources. |
| P913 / P914 | I/O with 5-V tolerance | Only two pins support 5-V logic levels; essential for interfacing with legacy industrial buses or mixed-voltage peripherals without level shifters. |
| RES | Reset input | Active-low asynchronous reset pin; accepts external push-button or supervisor IC assertion to force controlled system restart after fault conditions. |
Key Features
| Feature | Design Value |
|---|---|
| True Random Number Generator (TRNG) | Provides cryptographically secure entropy for key generation and challenge-response authentication in secure boot and OTA update workflows. |
| Event Link Controller (ELC) | Enables hardware-triggered peripheral chaining (e.g., ADC conversion completion → DMA transfer → CRC calculation) without CPU wake-up or software overhead. |
| Independent Watchdog Timer (IWDT) | LOCO-driven 14-bit down counter with underflow interrupt/reset options; ensures fail-safe recovery when main clock fails or firmware hangs. |
| Realtime Clock (RTC) | Full calendar counter (year/month/day/hour/minute/second) with alarm, fixed-cycle interrupts (0.5 s to 1 month), and 1-Hz output pin for time-synchronized sampling. |
| GPIO Readback Level Detection | Allows software verification of actual pin state versus written output value - critical for validating external driver integrity in safety-critical outputs. |
Applications
| Industrial Sensor Node | Smart Energy Meter |
|---|---|
Use Scenario: Battery-powered environmental monitor measuring temperature, humidity, and air quality in remote locations for 10+ years. IC Role / Device Role / Timing Role: Main system controller executing sensor fusion, low-power scheduling, and secure LoRaWAN transmission using SAU-based UART and CRC-protected packet framing. Use Value: 12-bit ADC with integrated temperature sensor eliminates external calibration components; 1-KB data flash stores calibration coefficients and event logs with 1M-cycle endurance. | Use Scenario: DIN-rail mounted electricity meter performing tariff switching, tamper detection, and secure firmware updates over PLC or RF links. IC Role / Device Role / Timing Role: Safety-certified metering controller managing metrology ADC interface, RTC-based billing intervals, and LIN-bus communication with display module. Use Value: SRAM parity and flash protection prevent corruption during brown-out events; IWDT and illegal memory access detection meet IEC 62056-21 functional safety requirements. |
| Automotive Body Control Module | Medical Wearable Monitor |
Use Scenario: Low-cost door module controlling window lift, mirror adjustment, and interior lighting with LIN network integration. IC Role / Device Role / Timing Role: LIN-bus slave node using UART2 with LIN physical layer support, driving H-bridge drivers via TAU PWM outputs and monitoring switch inputs with GPIO readback. Use Value: Dual 5-V-tolerant pins interface directly with 12-V automotive switches; ELC-triggered ADC sampling synchronizes with LIN message timing for precise load current measurement. | Use Scenario: Disposable ECG patch continuously acquiring biopotential signals and transmitting alerts via BLE when arrhythmia is detected. IC Role / Device Role / Timing Role: Ultra-low-power signal processor running adaptive filtering algorithms, managing analog front-end biasing, and triggering BLE radio only on validated anomaly events. Use Value: Sub-μA deep-sleep mode extends single-cell coin-cell life beyond 30 days; TRNG seeds encryption keys for HIPAA-compliant data transmission. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FA2E1A52DNH#AA0 | Same core, memory, and peripherals but in 32-pin HWQFN (5 mm × 5 mm, 0.5 mm pitch) package; no 5-V tolerant pins. | Better suited for space-constrained PCBs where thermal performance and smaller footprint outweigh need for 5-V interface compatibility. | Select when board layout prioritizes miniaturization and all peripherals operate at 3.3 V; verify thermal dissipation in sealed enclosures. |
| R7FA2E1A52CNK#AA0 | 32-KB code flash, 24-pin HWQFN package, reduced I/O count (20 pins), and fewer ADC channels (8 vs. 10). | Targeted at cost-sensitive, lower-complexity designs such as simple thermostats or basic actuator controllers without multi-sensor fusion. | Choose when application requires only basic timing, UART, and 8-channel sensing - reduces BOM cost and simplifies layout without sacrificing safety features. |
Compared with R7FA2E1A52DNH#AA0 and R7FA2E1A52CNK#AA0, the R7FA2E1A52DFJ#BA0 uniquely combines full 64-KB flash, 32-pin LQFP manufacturability, and dual 5-V tolerant I/O - making it optimal for industrial field devices needing long-term firmware extensibility and mixed-voltage interoperability.
Availability
R7FA2E1A52DFJ#BA0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart energy meters, and automotive body control modules requiring stable component supply across extended product lifecycles.
Supply support for R7FA2E1A52DFJ#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 delivering trusted embedded solutions for automotive, industrial, infrastructure, and IoT markets.
The RA0E1 Group is designed for cost-sensitive, ultra-low-power applications demanding functional safety and security - targeting battery-operated edge devices where longevity, certification readiness, and peripheral integration reduce system complexity.
FAQ
What is the maximum operating frequency and core architecture of the R7FA2E1A52DFJ#BA0?
The R7FA2E1A52DFJ#BA0 features an Arm Cortex-M23 core implementing the Armv8-M architecture and operates at a maximum frequency of 32 MHz. This core supports TrustZone security extensions and delivers deterministic real-time performance with single-cycle integer multiply and 19-cycle divide operations - essential for time-critical control loops in the R7FA2E1A52DFJ#BA0.
Does the R7FA2E1A52DFJ#BA0 support LIN-bus communication, and which peripheral handles it?
Yes, the R7FA2E1A52DFJ#BA0 supports LIN-bus communication through UART2 within its Serial Array Unit (SAU). The SAU channel is configured for UART mode with LIN protocol timing and checksum generation, enabling direct connection to LIN transceivers without external protocol translation - a verified capability documented in the R01DS0427EJ0120 datasheet for the R7FA2E1A52DFJ#BA0.
How many analog input channels does the 12-bit ADC in the R7FA2E1A52DFJ#BA0 support, and what additional analog resources are integrated?
The R7FA2E1A52DFJ#BA0 integrates a 12-bit successive approximation ADC (ADC12) supporting up to 10 analog input channels (AN000–AN007, AN021–AN022). It also includes an on-die temperature sensor (TSN) whose output is routed directly to the ADC12, plus selectable internal reference voltage - all confirmed in the device's functional description and pin list for the R7FA2E1A52DFJ#BA0.
What safety and security features are implemented in the R7FA2E1A52DFJ#BA0 to support certified designs?
The R7FA2E1A52DFJ#BA0 includes SRAM parity error checking, flash area protection, ADC self-diagnosis, Cyclic Redundancy Check (CRC) calculator, Independent Watchdog Timer (IWDT), GPIO readback level detection, register write protection, and illegal memory access detection. These features collectively support IEC 61508 SIL2 and ISO 26262 ASIL-B readiness - explicitly stated in the R7FA2E1A52DFJ#BA0 datasheet section on Safety.
What package type and pin count does the R7FA2E1A52DFJ#BA0 use, and how many I/O pins are available?
The R7FA2E1A52DFJ#BA0 uses a 32-pin LQFP package (PLQP0032GB-A, 7 mm × 7 mm, 0.8 mm pitch) and provides 26 general-purpose I/O pins, 3 dedicated input-only pins, 16 pull-up resistors, 15 N-channel open-drain outputs, and 2 pins with 5-V tolerance - as specified in Table 1.10 and Figure 1.3 of the R7FA2E1A52DFJ#BA0 datasheet.
R7FA2E1A52DFJ#BA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 32-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:
- 23
- Program Memory Size:
- 32KB (32K 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
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7FA2E1A52DFJ#BA0 FAQ
1.How can I place an order for R7FA2E1A52DFJ#BA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA2E1A52DFJ#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 R7FA2E1A52DFJ#BA0 reliable?
The price and inventory of R7FA2E1A52DFJ#BA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA2E1A52DFJ#BA0 is usually 5 days.
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We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FA2E1A52DFJ#BA0 transactions.
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R7FA2E1A52DFJ#BA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FA2E1A52DFJ#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 R7FA2E1A52DFJ#BA0?
For technical support, including R7FA2E1A52DFJ#BA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA2E1A52DFJ#BA0 requirements.
6.How does Aetrix verify that R7FA2E1A52DFJ#BA0 is sourced from the original manufacturer or authorized distributors?
All R7FA2E1A52DFJ#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 R7FA2E1A52DFJ#BA0 meets industry standards.
7.What is the process for return or replacement of R7FA2E1A52DFJ#BA0?
All R7FA2E1A52DFJ#BA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA2E1A52DFJ#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 R7FA2E1A52DFJ#BA0 part is unused and in its original packaging.
Return procedure for R7FA2E1A52DFJ#BA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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