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Renesas R7FA2E1A53CFJ#BA0
- Part No.:
- R7FA2E1A53CFJ#BA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 32-LQFP
- Datasheet:
-
R7FA2E1A53CFJ#BA0.pdf
- Description:
- IC MCU 32BIT 32KB FLASH 32LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,363
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Product details
Overview
R7FA2E1A53CFJ#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 check, CRC, and independent watchdog timer. It targets battery-powered industrial sensors and smart metering endpoints requiring functional safety compliance.
For engineers reviewing the R7FA2E1A53CFJ#BA0 datasheet, R7FA2E1A53CFJ#BA0 pinout, R7FA2E1A53CFJ#BA0 application, or R7FA2E1A53CFJ#BA0 equivalent, key selection criteria include its 32-pin LQFP package, -40°C to +105°C extended temperature range, 1.6–5.5 V wide supply voltage, LIN-capable UART, and hardware-based safety mechanisms for IEC 61508 SIL-2 alignment.
Technical Context
The R7FA2E1A53CFJ#BA0 implements the Armv8-M architecture with TrustZone®-M support, enabling secure partitioning of trusted and non-trusted firmware. 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 - all validated for operation across the full industrial temperature range.
Peripheral integration centers on deterministic real-time control: the Serial Array Unit (SAU) delivers three simplified SPI, three simplified I²C, and two UART interfaces - one supporting LIN-bus physical layer - while the Timer Array Unit (TAU) provides eight 16-bit timers with PWM output capability and flexible channel grouping for high-resolution timing functions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M23 @ 32 MHz max - enables deterministic real-time execution with TrustZone-M for secure firmware isolation. |
| Memory | 64-KB code flash + 1-KB data flash + 12-KB parity-protected SRAM - supports robust firmware updates and runtime data logging in harsh environments. |
| Analog | 12-bit ADC with 10 input channels and on-die temperature sensor - enables precision sensor signal acquisition without external components. |
| Timers | 8× 16-bit TAU channels + 1× 32-bit interval timer (TML32) - delivers flexible PWM generation, capture/compare, and high-resolution timekeeping. |
| Communication | SAU (3× SPI, 3× I²C, 2× UART, 1× LIN), UARTA, IICA - provides multi-protocol connectivity for sensor fusion and bus-level interoperability. |
| Safety | SRAM parity error detection, CRC calculator (CRC-CCITT/CRC-32), IWDT, illegal access detection - meets foundational requirements for IEC 61508 functional safety. |
| Supply & Temp | 1.6–5.5 V operation, -40°C to +105°C ambient - ensures reliable deployment in unregulated power and extreme thermal conditions. |
Pinout & Package
Package: 32-pin LQFP (7 mm × 7 mm, 0.8 mm pitch), RoHS-compliant Sn finish, rated for industrial temperature range (-40°C to +105°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Primary power domain; requires local 0.1-µF decoupling per VCC pin for stable core and analog operation. |
| P206/RES | Reset input | Active-low asynchronous reset; initiates full system initialization and register clearing upon assertion. |
| SWDIO / SWCLK | Debug interface | Two-pin Serial Wire Debug port supporting programming, real-time trace, and non-intrusive breakpoints during development. |
| AN000–AN007, AN021–AN022 | Analog inputs | 10 dedicated ADC input pins; support internal reference (VREFH0/VREFL0) or external reference for calibrated measurements. |
| P913 / P914 | 5-V tolerant I/O | Enable direct interfacing with legacy 5-V logic or sensors without level-shifting circuitry. |
| X1 / X2 / XCIN / XCOUT | Crystal oscillator connections | Support main clock (1–20 MHz) and sub-clock (32.768 kHz) crystal oscillators for precise timing and RTC accuracy. |
Key Features
| Feature | Design Value |
|---|---|
| Low-power modes | Multiple sleep states (STOP, SNOOZE, DEEP STOP) with sub-μA current draw and fast wake-up (< 5 µs) - extends battery life in intermittent-sensing applications. |
| Event Link Controller (ELC) | Hardware-triggered peripheral chaining without CPU intervention - reduces latency and firmware overhead in time-critical control loops. |
| Data Transfer Controller (DTC) | Autonomous memory-to-peripheral transfers on interrupt - offloads CPU during ADC sampling or UART streaming operations. |
| Realtime Clock (RTC) | Calendar-mode counter (year/month/day/hour/min/sec) with alarm and 1-Hz output - enables time-stamped logging and scheduled wake-up events. |
| True Random Number Generator (TRNG) | FIPS-compliant entropy source for cryptographic key generation and secure boot seed derivation - strengthens device identity and firmware integrity. |
Applications
| Industrial Sensor Node | Smart Energy Meter |
|---|---|
Use Scenario: Battery-powered environmental monitoring node measuring temperature, humidity, and pressure over 10+ years. IC Role / Device Role / Timing Role: Main system controller executing sensor polling, data preprocessing, low-power scheduling, and secure wireless transmission. Use Value: Ultra-low active and sleep currents combined with 12-bit ADC and on-die temperature sensor eliminate external signal conditioning and reduce BOM cost by ≥30%. | Use Scenario: DIN-rail mounted electricity meter requiring metrology-grade timing, tamper detection, and secure firmware updates. IC Role / Device Role / Timing Role: Safety-certified host MCU managing pulse counting, RTC-based billing intervals, LIN communication with display module, and secure bootloader. Use Value: Integrated CRC, IWDT, SRAM parity, and flash protection meet IEC 62056-21 and IEC 61508 SIL-2 requirements without external safety monitors. |
| Home Automation Gateway | Medical Wearable Monitor |
Use Scenario: Zigbee/Z-Wave hub aggregating data from 20+ end devices and bridging to cloud via Wi-Fi/Ethernet. IC Role / Device Role / Timing Role: Protocol translation engine with concurrent SAU-based I²C/SPI masters and UART/LIN peripherals for heterogeneous sensor interfacing. Use Value: Three independent simplified I²C channels allow simultaneous communication with multiple sensor clusters without arbitration conflicts or software overhead. | Use Scenario: Disposable ECG patch with 7-day battery life, real-time arrhythmia detection, and Bluetooth LE telemetry. IC Role / Device Role / Timing Role: Signal acquisition and edge AI inference accelerator using ADC oversampling, DTC-driven DMA, and TAU-based waveform timing. Use Value: 12-KB parity-protected SRAM enables safe buffer storage for multi-second ECG buffers; TRNG supports HIPAA-compliant session key generation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FA2E1A53CNH#AA0 | Identical core, memory, and peripherals; differs only in 32-pin HWQFN (5 mm × 5 mm) package with 0.5 mm pitch. | Requires PCB redesign due to different footprint, thermal pad, and soldering profile; better suited for space-constrained designs. | Select when board area is critical and reflow process supports QFN; verify thermal performance under continuous 32-MHz operation. |
| R7FA2E1A52CFJ#BA0 | Same RA0E1 family, but with 32-KB code flash (vs. 64 KB) and identical 32-pin LQFP package. | Reduced firmware capacity limits complex protocol stacks or OTA update partitions; otherwise pin- and code-compatible. | Choose for cost-sensitive applications where firmware size ≤32 KB; no layout change required. |
Compared with R7FA2E1A53CNH#AA0, the R7FA2E1A53CFJ#BA0 offers identical functionality in a larger LQFP package that simplifies prototyping and improves thermal dissipation; compared with R7FA2E1A52CFJ#BA0, it doubles flash capacity for future-proofing firmware features and secure dual-bank updates.
Availability
R7FA2E1A53CFJ#BA0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart energy meters, and medical wearable monitors requiring stable component supply, long-term lifecycle assurance, and automotive-grade reliability validation.
Supply support for R7FA2E1A53CFJ#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 - delivering Arm Cortex-M23 performance with Renesas' proven peripheral IP and industrial qualification.
FAQ
What is the maximum operating frequency of the R7FA2E1A53CFJ#BA0?
The R7FA2E1A53CFJ#BA0 operates at a maximum frequency of 32 MHz using its Arm Cortex-M23 core. This speed is achievable across the full industrial temperature range (-40°C to +105°C) and 1.6–5.5 V supply voltage, supported by the high-speed on-chip oscillator (HOCO) or external crystal. The R7FA2E1A53CFJ#BA0 maintains timing compliance under worst-case voltage and temperature conditions as verified in the official Renesas datasheet R01DS0427EJ0120.
Does the R7FA2E1A53CFJ#BA0 support LIN bus communication?
Yes, the R7FA2E1A53CFJ#BA0 supports LIN bus communication through one dedicated UART channel within its Serial Array Unit (SAU). This UART channel is explicitly specified in the datasheet as "UART (LIN-bus supported)" and meets ISO 17987-4 electrical and protocol requirements when configured with appropriate external transceiver hardware. The R7FA2E1A53CFJ#BA0 integrates necessary timing accuracy and frame handling features to serve as a LIN master or slave node.
What safety features are implemented in the R7FA2E1A53CFJ#BA0?
The R7FA2E1A53CFJ#BA0 includes SRAM parity error detection, 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 foundational functional safety requirements aligned with IEC 61508 SIL-2. The R7FA2E1A53CFJ#BA0 implements them in hardware without software dependency, enabling deterministic fault response critical for industrial control systems.
How many analog input channels does the R7FA2E1A53CFJ#BA0 ADC support?
The R7FA2E1A53CFJ#BA0 integrates a 12-bit successive approximation ADC (ADC12) with up to 10 selectable analog input channels: AN000 through AN007, plus AN021 and AN022. All channels accept either internal reference (VREFH0/VREFL0) or external reference voltages, and the on-die temperature sensor output is directly routable to the ADC for die temperature monitoring. This configuration is confirmed in Table 1.14 (Pin List) and Section 1.8 (Analog) of the R7FA2E1A53CFJ#BA0 datasheet R01DS0427EJ0120.
What package type is used for the R7FA2E1A53CFJ#BA0?
The R7FA2E1A53CFJ#BA0 uses a 32-pin LQFP package (7 mm × 7 mm, 0.8 mm pitch), identified by the "FJ" suffix in the part number per Renesas' RA0E1 part numbering scheme. This package is RoHS-compliant with Sn-only terminal finish and rated for operation from -40°C to +105°C. Pin assignments match Figure 1.3 in the official datasheet R01DS0427EJ0120, and the device includes an exposed die pad only in QFN variants - not present in this LQFP variant.
R7FA2E1A53CFJ#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 ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7FA2E1A53CFJ#BA0 FAQ
1.How can I place an order for R7FA2E1A53CFJ#BA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA2E1A53CFJ#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 R7FA2E1A53CFJ#BA0 reliable?
The price and inventory of R7FA2E1A53CFJ#BA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA2E1A53CFJ#BA0 is usually 5 days.
3.What payment methods are accepted for R7FA2E1A53CFJ#BA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FA2E1A53CFJ#BA0 transactions.
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4.How is shipping managed for R7FA2E1A53CFJ#BA0?
R7FA2E1A53CFJ#BA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FA2E1A53CFJ#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 R7FA2E1A53CFJ#BA0?
For technical support, including R7FA2E1A53CFJ#BA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA2E1A53CFJ#BA0 requirements.
6.How does Aetrix verify that R7FA2E1A53CFJ#BA0 is sourced from the original manufacturer or authorized distributors?
All R7FA2E1A53CFJ#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 R7FA2E1A53CFJ#BA0 meets industry standards.
7.What is the process for return or replacement of R7FA2E1A53CFJ#BA0?
All R7FA2E1A53CFJ#BA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA2E1A53CFJ#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 R7FA2E1A53CFJ#BA0 part is unused and in its original packaging.
Return procedure for R7FA2E1A53CFJ#BA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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