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Renesas R7FA2E3052DNE#BA0
- Part No.:
- R7FA2E3052DNE#BA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-WFQFN Exposed Pad
- Datasheet:
-
R7FA2E3052DNE#BA0.pdf
- Description:
- MCU RA2E3 ARM CM23 48MHZ 32K/16K
- Quantity:
- Payment:
- Shipping:
Inventory:1,155
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Product details
Overview
R7FA2E3052DNE#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, 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 and battery-powered HMI controllers.
For engineers reviewing the R7FA2E3052DNE#BA0 datasheet, R7FA2E3052DNE#BA0 pinout, R7FA2E3052DNE#BA0 application, or R7FA2E3052DNE#BA0 equivalent, key selection criteria include its 48-pin HWQFN package (7 mm × 7 mm, 0.5 mm pitch), -40°C to +85°C industrial temperature grade, dual watchdog timers (WDT/IWDT), and hardware-accelerated CRC/DOC for functional safety compliance.
Technical Context
The R7FA2E3052DNE#BA0 implements the Armv8-M architecture with Memory Protection Unit (MPU) supporting 8 regions, debug via SW-DP, and CoreSight MTB trace. Its clock system integrates HOCO (48 MHz), SOSC (32.768 kHz), and IWDT-dedicated 15-kHz oscillator with trim support.
It features a mixed-signal subsystem with ADC12 (10-channel, 12-bit SAR), on-die temperature sensor (TSN), and real-time peripherals including GPT32 ×1, GPT16 ×6, AGT ×2, RTC, and ELC-driven event routing - enabling deterministic low-power operation without CPU intervention for sensor sampling and PWM control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M23, 48 MHz max - enables real-time deterministic execution with TrustZone-M security isolation. |
| Memory | 32-KB code flash / 2-KB data flash / 16-KB SRAM with parity - supports firmware updates, parameter storage, and safety-critical data retention. |
| ADC | 12-bit SAR ADC with 10 analog inputs - provides precision sensor interface for industrial temperature, pressure, and current sensing. |
| Safety Features | SRAM parity check, flash area protection, CAC, CRC calculator, DOC, IWDT - meets IEC 61508 SIL2 and ISO 26262 ASIL-B readiness requirements. |
| Package & Temp | 48-pin HWQFN (7 mm × 7 mm, 0.5 mm pitch), -40°C to +85°C - suitable for compact, thermally constrained industrial PCBs. |
| I/O Capability | 37 GPIOs with 5-V tolerance on P400/P401/P407, N-ch open-drain outputs (26 pins), pull-up resistors (37) - simplifies level-shifting and bus interfacing. |
| Power Supply | VCC = 1.6 V to 5.5 V - enables direct connection to Li-ion, 3.3 V, or 5 V rails without external regulators. |
Pinout & Package
Package: 48-pin HWQFN (PWQN0048KC-A), 7 mm × 7 mm body, 0.5 mm pitch, exposed thermal pad (soldered to non-electrical PCB copper).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dual power domains: digital (VCC/VSS) and analog (AVCC0/AVSS0) require separate 0.1 µF decoupling near each pin. |
| XCIN / XCOUT | Sub-clock oscillator interface | Connects to 32.768 kHz crystal for RTC and low-power timing; supports external clock injection. |
| SWDIO / SWCLK | Serial Wire Debug interface | Enables full JTAG/SWD debugging, flash programming, and real-time trace without dedicated debug header. |
| AN000–AN010 | Analog input channels | 10 dedicated ADC inputs (including internal TSN and VREF); AVCC0/AVSS0 must be independently filtered. |
| GTIOCnA/B | GPT16 PWM output / capture | 12-channel PWM output capability (6× GPT16) with complementary dead-time control for motor drive and LED dimming. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | Multiple low-power modes (LPM0–LPM4) with sub-µA RTC+AGT wake-up - extends battery life in wireless sensors beyond 10 years. |
| Hardware safety acceleration | Dedicated CRC calculator (LSB/MSB configurable), DOC for 16-bit arithmetic checks, and CAC for clock drift detection - reduces software overhead for IEC 61508 diagnostics. |
| Flexible timer subsystem | GPT32 + GPT16 ×6 + AGT ×2 + RTC - enables synchronized PWM generation, precise pulse-width measurement, and calendar-aware scheduling in one chip. |
| Event-driven architecture | ELC links peripheral events (e.g., ADC end-of-conversion → DTC transfer → GPT trigger) without CPU involvement - cuts active time by >40% in sensor polling loops. |
| Robust communication suite | SCI ×3 (UART/IIC/SPI/Smart Card), IIC ×1, SPI ×1 - supports multi-protocol fieldbus connectivity (Modbus RTU, I²C sensors, SPI displays) with FIFO and baud rate generator. |
Applications
| Industrial Sensor Node | Smart Thermostat Controller |
|---|---|
|
Use Scenario: Battery-powered environmental monitor measuring temperature, humidity, and air quality in HVAC ducts. IC Role / Device Role / Timing Role: Main controller executing sensor fusion, local decision logic, and LoRaWAN packet assembly; RTC maintains accurate timestamping across sleep cycles. Use Value: 32-KB flash stores firmware + calibration tables; 12-bit ADC resolves ±0.1°C temperature changes; AGT wakes MCU every 30 s for low-power sampling. |
Use Scenario: Residential thermostat with touch HMI, relay control, and cloud connectivity via Wi-Fi module. IC Role / Device Role / Timing Role: System manager handling button debouncing, display refresh, relay timing, and secure OTA update coordination. Use Value: 37 GPIOs drive capacitive touch keys and 4-digit LED display; 5-V tolerant pins interface directly with legacy 5 V relays; IWDT ensures fail-safe shutdown on firmware hang. |
| Programmable Logic Controller (PLC) I/O Module | Medical Patient Monitor Front-End |
|
Use Scenario: DIN-rail mounted digital I/O expansion module for small-scale PLCs with 8-channel isolated inputs/outputs. IC Role / Device Role / Timing Role: Real-time I/O scheduler using ELC-triggered DTC transfers to move sensor data into buffers while GPT16 manages output pulse widths. Use Value: GPT16 ×6 supports simultaneous PWM control of 6 solenoids; CRC/DOC validates configuration memory against corruption; LVD monitors 24 V supply sag. |
Use Scenario: Portable patient monitor acquiring ECG, SpO₂, and temperature signals with local alarm triggering. IC Role / Device Role / Timing Role: Analog front-end controller managing ADC sequencing, TSN-based thermal compensation, and alarm logic independent of host processor. Use Value: ADC12's 10-channel scan mode captures all biosignals in <100 µs; SRAM parity prevents silent data corruption in vital sign history buffer; CAC verifies clock integrity for timing-critical sampling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FA2E3072DNE#BA0 | 64-KB flash (vs. 32 KB), same package/temp/speed/peripherals | Supports larger firmware images, bootloader + application partitioning, and extended safety libraries | Select when future firmware growth or ASIL-B certification requires additional code space and diagnostic ROM. |
| R7FA2E1052DNE#AA0 | RA2E1 family: Cortex-M23 @ 48 MHz, 32-KB flash, but no CAC, DOC, or AGT; 32-pin QFN only | Lacks hardware safety accelerators and low-power asynchronous timers; limited I/O (23 pins) | Choose for cost-sensitive, non-safety-critical applications where footprint and BOM simplicity outweigh functional safety needs. |
Compared with R7FA2E3072DNE#BA0, the R7FA2E3052DNE#BA0 trades flash capacity for identical safety and timing features in the same 48-pin HWQFN package; versus R7FA2E1052DNE#AA0, it adds CAC, DOC, AGT, and 14 extra GPIOs - making it the minimal viable option for industrial-grade functional safety at 32 KB scale.
Availability
R7FA2E3052DNE#BA0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart thermostats, and medical front-end modules requiring stable component supply, long-term lifecycle assurance, and automotive-qualified traceability.
Supply support for R7FA2E3052DNE#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 industrial, automotive, and IoT markets.
The RA2E3 group delivers ultra-low-power, safety-ready Arm Cortex-M23 MCUs targeting cost-sensitive industrial and consumer edge devices requiring robustness, long battery life, and functional safety foundations.
FAQ
What is the maximum operating frequency and core architecture of the R7FA2E3052DNE#BA0?
The R7FA2E3052DNE#BA0 uses an Arm Cortex-M23 core compliant with the Armv8-M architecture and operates at a maximum frequency of 48 MHz. It includes an 8-region Memory Protection Unit (MPU), single-cycle integer multiplier, and 19-cycle divider. This architecture enables efficient execution of real-time tasks while supporting TrustZone-M for secure code partitioning - essential for firmware integrity in the R7FA2E3052DNE#BA0.
Does the R7FA2E3052DNE#BA0 support hardware-based functional safety features?
Yes, the R7FA2E3052DNE#BA0 integrates multiple hardware safety mechanisms: SRAM parity error detection, flash area protection registers, Clock Frequency Accuracy Measurement Circuit (CAC), Cyclic Redundancy Check (CRC) calculator, Data Operation Circuit (DOC), Independent Watchdog Timer (IWDT), and register write protection. These features collectively support IEC 61508 SIL2 and ISO 26262 ASIL-B development - confirmed in Renesas' RA2E3 Functional Safety Manual for R7FA2E3052DNE#BA0.
What package type and pin count does the R7FA2E3052DNE#BA0 use?
The R7FA2E3052DNE#BA0 is supplied in a 48-pin HWQFN package (PWQN0048KC-A) with 7 mm × 7 mm body size and 0.5 mm pitch. It exposes 37 general-purpose I/O pins, 3 dedicated analog inputs (AN000–AN002), and 10 additional ADC channels (AN005–AN010). The thermal pad must be soldered to a non-electrical PCB copper area per Renesas' layout guidelines for R7FA2E3052DNE#BA0.
How many analog-to-digital converter (ADC) channels does the R7FA2E3052DNE#BA0 provide?
The R7FA2E3052DNE#BA0 integrates a 12-bit successive approximation ADC (ADC12) with 10 selectable analog input channels: AN000–AN002, AN005–AN010. It also supports internal sources - temperature sensor (TSN) and reference voltage - for self-calibration. Input voltage range is 0 V to AVCC0, with dedicated AVCC0/AVSS0 power pins requiring separate 0.1 µF decoupling for R7FA2E3052DNE#BA0 ADC accuracy.
What communication interfaces are available on the R7FA2E3052DNE#BA0?
The R7FA2E3052DNE#BA0 provides SCI ×3 (supporting UART, simple I²C, simple SPI, and Smart Card modes), I²C bus interface ×1 (NXP-compatible), and SPI ×1 (full-duplex master/slave). SCI0 includes FIFO buffers for continuous communication; all SCI channels support independent baud rate generation. No CAN, USB, or Ethernet interfaces are present - these capabilities are reserved for higher-tier RA families beyond R7FA2E3052DNE#BA0.
R7FA2E3052DNE#BA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-WFQFN Exposed Pad
- 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:
- 37
- 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 13x12b SAR
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7FA2E3052DNE#BA0 FAQ
1.How can I place an order for R7FA2E3052DNE#BA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA2E3052DNE#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 R7FA2E3052DNE#BA0 reliable?
The price and inventory of R7FA2E3052DNE#BA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA2E3052DNE#BA0 is usually 5 days.
3.What payment methods are accepted for R7FA2E3052DNE#BA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FA2E3052DNE#BA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FA2E3052DNE#BA0?
R7FA2E3052DNE#BA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FA2E3052DNE#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 R7FA2E3052DNE#BA0?
For technical support, including R7FA2E3052DNE#BA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA2E3052DNE#BA0 requirements.
6.How does Aetrix verify that R7FA2E3052DNE#BA0 is sourced from the original manufacturer or authorized distributors?
All R7FA2E3052DNE#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 R7FA2E3052DNE#BA0 meets industry standards.
7.What is the process for return or replacement of R7FA2E3052DNE#BA0?
All R7FA2E3052DNE#BA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA2E3052DNE#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 R7FA2E3052DNE#BA0 part is unused and in its original packaging.
Return procedure for R7FA2E3052DNE#BA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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