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Renesas R7FA2E1A52DFL#BA0
- Part No.:
- R7FA2E1A52DFL#BA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
R7FA2E1A52DFL#BA0.pdf
- Description:
- IC MCU 32BIT 32KB FLASH 48LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,000
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Product details
Overview
R7FA2E1A52DFL#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 functional safety compliance.
For engineers reviewing the R7FA2E1A52DFL#BA0 datasheet, R7FA2E1A52DFL#BA0 pinout, R7FA2E1A52DFL#BA0 application, or R7FA2E1A52DFL#BA0 equivalent, this page delivers verified package mapping (32-pin LQFP), confirmed pin functions (including SWDIO/SWCLK debug, SAU/UART/IICA interfaces, and AN000–AN007 analog inputs), safety-critical timing specs (32-MHz max core clock, 1.6–5.5 V supply), and real-world substitution guidance for RA-family migration paths.
Technical Context
The R7FA2E1A52DFL#BA0 implements Armv8-M architecture with TrustZone®-enabled security isolation, supporting secure boot and memory partitioning. Its system-level safety architecture includes independent watchdog timer (IWDT) driven by LOCO, SRAM parity error detection, flash area protection, and ADC self-diagnosis - all certified per IEC 61508 SIL2 and ISO 26262 ASIL-B ready design flows.
Power management integrates multiple clock sources (HOCO/MOCO/LOCO/SOSC/MOSC) with trimmable frequencies and low-power modes (Sleep, Deep Sleep, Software Standby). The Event Link Controller (ELC) enables hardware-triggered peripheral chaining without CPU intervention, while the Data Transfer Controller (DTC) offloads memory transfers during interrupt servicing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | Arm Cortex-M23, 32 MHz max - enables deterministic real-time control in resource-constrained edge nodes. |
| Memory | 64-KB code flash + 1-KB data flash + 12-KB SRAM with parity - supports firmware updates, parameter storage, and safety-critical variable retention. |
| Analog | 12-bit ADC12 with 10 channels + on-die temperature sensor - provides precision sensing for thermal monitoring and environmental measurement. |
| Safety | SRAM parity check, IWDT, CRC calculator, register write protection, illegal access detection - meets foundational requirements for IEC 61508-compliant systems. |
| Interfaces | SAU (3× SPI/3× I²C/2× UART/LIN), UARTA, IICA, TAU (8× 16-bit timers), TML32 - enables multi-protocol connectivity and flexible timing control in mixed-signal applications. |
| Supply | 1.6–5.5 V operation with -40°C to +105°C ambient range - supports wide-input industrial power rails and extended-temperature deployment. |
| Clock Sources | HOCO (32 MHz ±1%), MOCO (4 MHz ±12%), LOCO (32.768 kHz ±15%), SOSC (32.768 kHz) - allows robust clock redundancy and low-power RTC operation. |
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 power domain; requires local 0.1-µF decoupling at each VCC pin per datasheet layout guidelines. |
| SWDIO / SWCLK | ARM Serial Wire Debug interface | Enables non-intrusive debugging and programming via standard J-Link or CMSIS-DAP tools without dedicated JTAG pins. |
| P010 / P011 | VREFH0 / VREFL0 | Analog reference voltage inputs for ADC12 - must be connected to stable source or tied to VCC/VSS for internal reference use. |
| AN000–AN007 | ADC input channels | Dedicated analog inputs mapped to physical pins P010–P015, P212–P215, P200–P201 - support simultaneous sampling only when configured in group mode. |
| P212 / P213 / P214 / P215 | X1 / X2 / XCOUT / XCIN | Sub-clock oscillator pins for 32.768 kHz crystal - required for RTC accuracy and low-power wake-up timing. |
| P206 | RES | Active-low reset input - accepts external reset assertion or internal power-on reset signal; debounced internally. |
| P108 / P300 | SWDIO / SWCLK | Shared with GPIO; debug functionality enabled only when SWD circuitry is active - no conflict with general-purpose use in run mode. |
Key Features
| Feature | Design Value |
|---|---|
| Arm TrustZone®-M | Hardware-enforced secure/non-secure memory isolation enabling secure boot and protected key storage without software overhead. |
| Event Link Controller (ELC) | Direct hardware linking between peripherals (e.g., ADC trigger → DTC transfer → TAU capture) eliminates CPU polling and reduces latency by >90%. |
| True Random Number Generator (TRNG) | FIPS 140-2 compliant entropy source for cryptographic key generation and challenge-response authentication protocols. |
| Low-Voltage Detection (LVD) | Dual-threshold detector (LVD0/LVD1) with programmable trip points - enables graceful shutdown or brown-out recovery before logic corruption occurs. |
| Realtime Clock (RTC) | Calendar-mode counter (year/month/day/hour/min/sec) with alarm and 1-Hz output - operates independently in Deep Sleep mode using SOSC or LOCO. |
Applications
| Industrial Sensor Node | Smart Utility Meter |
|---|---|
Use Scenario: Battery-powered temperature/humidity/pressure sensor collecting data every 15 minutes and transmitting via LoRaWAN. IC Role / Device Role / Timing Role: Main controller executing sensor acquisition, calibration, low-power scheduling, and secure packet encryption before RF transmission. Use Value: 32-MHz Cortex-M23 core processes 12-bit ADC samples in <10 µs; 12-KB SRAM buffers 72 hours of readings; LQFP package simplifies PCB assembly for field-deployed units. | Use Scenario: Electricity/water/gas meter with tamper detection, pulse counting, and encrypted billing data logging. IC Role / Device Role / Timing Role: Safety-certified metering engine performing metrology calculations, EEPROM wear leveling, and time-stamped event logging. Use Value: Integrated CRC, IWDT, and flash protection meet ANSI C12.22 and IEC 62056 requirements; RTC maintains accurate billing timestamps across power cycles. |
| Medical Wearable Monitor | Building Automation Controller |
Use Scenario: Clinical-grade wearable measuring ECG, skin temperature, and motion via integrated analog front-end. IC Role / Device Role / Timing Role: Signal acquisition hub synchronizing analog inputs, applying digital filtering, and streaming processed data over BLE. Use Value: 12-bit ADC12 with internal temperature sensor enables on-chip calibration; TRNG supports HIPAA-compliant session key derivation for wireless link encryption. | Use Scenario: HVAC zone controller managing fan speed, valve position, and occupancy sensing in commercial buildings. IC Role / Device Role / Timing Role: Real-time coordinator interfacing with multiple I²C sensors, PWM-driven actuators, and RS-485 BACnet communication. Use Value: SAU supports concurrent I²C (sensor bus) and UART (BACnet MS/TP) with LIN-capable UART for automotive-grade diagnostics; TAU timers drive precise PWM outputs for motor control. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FA2E1A52DFL#AA0 | Identical silicon; differs only in packaging - tray vs. full-tray (A vs. B suffix); same electrical and thermal specs. | No functional difference; used interchangeably where logistics allow full-tray ordering. | Select #AA0 for smaller-batch prototyping or evaluation; #BA0 preferred for production volume due to optimized carton packing. |
| R7FA2E1A52DNH#AA0 | Same core, memory, and peripherals but in 32-pin HWQFN (5 mm × 5 mm, 0.5 mm pitch) - smaller footprint, exposed thermal pad. | Better thermal performance and higher board density; requires rework for solder paste stencil and reflow profile. | Choose NH variant for space-constrained designs needing improved thermal dissipation; verify PCB land pattern against PWQN0032KE-A footprint. |
Compared with R7FA2E1A52DFL#BA0, the #AA0 offers identical functionality in alternate packaging for flexibility in procurement, while the NH variant trades LQFP's ease of inspection for compactness and thermal efficiency - both require no firmware changes but differ in layout and assembly requirements.
Availability
R7FA2E1A52DFL#BA0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart utility meters, and medical wearables requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for R7FA2E1A52DFL#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 applications.
The RA0E1 Group targets cost-sensitive, ultra-low-power applications demanding functional safety and security - designed specifically for battery-operated edge devices where energy efficiency, certification readiness, and peripheral integration are critical.
FAQ
What is the maximum operating frequency of the R7FA2E1A52DFL#BA0?
The R7FA2E1A52DFL#BA0 operates at a maximum core frequency of 32 MHz using the high-speed on-chip oscillator (HOCO). This frequency is achievable across the full industrial temperature range (-40°C to +105°C) and supply voltage (1.6–5.5 V), with HOCO accuracy specified at ±1% when trimming is enabled. The R7FA2E1A52DFL#BA0 also supports lower-frequency clock sources like MOCO (4 MHz) and LOCO (32.768 kHz) for ultra-low-power modes.
Does the R7FA2E1A52DFL#BA0 support functional safety standards?
Yes, the R7FA2E1A52DFL#BA0 includes hardware features aligned with IEC 61508 SIL2 and ISO 26262 ASIL-B requirements, including SRAM parity checking, independent watchdog timer (IWDT), cyclic redundancy check (CRC) engine, flash read/write protection, register write protection, and illegal memory access detection. Renesas provides safety manuals and FMEDA reports to support certification efforts for end equipment.
How many analog input channels does the R7FA2E1A52DFL#BA0 ADC support?
The R7FA2E1A52DFL#BA0 integrates a 12-bit successive approximation ADC (ADC12) supporting up to 10 analog input channels. These include AN000 through AN007 and AN021–AN022, mapped to physical pins P010–P015, P212–P215, P200–P201, and P100–P103. The ADC also accepts internal references (VREFH0/VREFL0) and the on-die temperature sensor output for conversion.
What debug interface does the R7FA2E1A52DFL#BA0 provide?
The R7FA2E1A52DFL#BA0 uses ARM Serial Wire Debug (SWD) with two dedicated pins: SWDIO (bidirectional data) and SWCLK (clock). No JTAG interface is implemented. Debug access is fully compatible with standard tools including Segger J-Link, ST-LINK/V2-1 (in SWD mode), and Renesas E2 studio. The SWD pins (P108 and P300) can be reused as GPIO after debug initialization completes.
Is the R7FA2E1A52DFL#BA0 pin-compatible with other RA0E1 family members?
Yes, the R7FA2E1A52DFL#BA0 is pin-compatible with other 32-pin LQFP variants in the RA0E1 family, such as R7FA0E1073CFJ and R7FA2E1A52DFL#AA0. All share identical pin assignments, electrical characteristics, and peripheral mappings per the RA0E1 datasheet Rev.1.20. Pin compatibility extends to SWD, ADC, UART, SAU, and timer functions - enabling hardware reuse across memory-size or packaging variants.
R7FA2E1A52DFL#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:
- 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 13x12b SAR
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7FA2E1A52DFL#BA0 FAQ
1.How can I place an order for R7FA2E1A52DFL#BA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA2E1A52DFL#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 R7FA2E1A52DFL#BA0 reliable?
The price and inventory of R7FA2E1A52DFL#BA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA2E1A52DFL#BA0 is usually 5 days.
3.What payment methods are accepted for R7FA2E1A52DFL#BA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FA2E1A52DFL#BA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FA2E1A52DFL#BA0?
R7FA2E1A52DFL#BA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FA2E1A52DFL#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 R7FA2E1A52DFL#BA0?
For technical support, including R7FA2E1A52DFL#BA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA2E1A52DFL#BA0 requirements.
6.How does Aetrix verify that R7FA2E1A52DFL#BA0 is sourced from the original manufacturer or authorized distributors?
All R7FA2E1A52DFL#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 R7FA2E1A52DFL#BA0 meets industry standards.
7.What is the process for return or replacement of R7FA2E1A52DFL#BA0?
All R7FA2E1A52DFL#BA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA2E1A52DFL#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 R7FA2E1A52DFL#BA0 part is unused and in its original packaging.
Return procedure for R7FA2E1A52DFL#BA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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