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Renesas R7FA2E1A53CFL#AA0
- Part No.:
- R7FA2E1A53CFL#AA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
R7FA2E1A53CFL#AA0.pdf
- Description:
- IC MCU 32BIT 32KB FLASH 48LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,360
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Product details
Overview
R7FA2E1A53CFL#AA0 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, Capacitive Sensing Unit (CTSU2), and integrated security (AES128/256, TRNG) for cost-sensitive industrial HMI and sensor-edge applications.
For engineers reviewing the R7FA2E1A53CFL#AA0 datasheet, R7FA2E1A53CFL#AA0 pinout, R7FA2E1A53CFL#AA0 application, or R7FA2E1A53CFL#AA0 equivalent, key selection criteria include its 48-pin LQFP package with 37 I/O pins, -40°C to +105°C industrial temperature grade, CTSU2-based touch interface support, and dual watchdog timers (WDT/IWDT) for functional safety compliance.
Technical Context
The R7FA2E1A53CFL#AA0 implements the Armv8-M architecture with Memory Protection Unit (MPU) and CoreSight™ debug infrastructure, enabling secure, scalable firmware execution in resource-constrained embedded systems. Its clock system integrates HOCO (48 MHz), SOSC (32.768 kHz), and LOCO oscillators with CAC for real-time frequency accuracy monitoring.
Peripheral integration includes four SCI modules supporting UART, SPI, I²C, and smart card protocols; one dedicated I²C bus interface; one SPI channel; two low-power analog comparators (ACMPLP); and an Event Link Controller (ELC) enabling CPU-free peripheral synchronization - all optimized for deterministic low-power operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M23 @ 48 MHz max; supports Armv8-M TrustZone-ready instruction set and MPU for memory isolation. |
| Memory | 32-KB code flash (100k P/E cycles), 4-KB data flash, 16-KB SRAM with parity; enables robust firmware storage and runtime data integrity. |
| Analog Peripherals | 12-bit ADC12 with 13 input channels, 2× ACMPLP, on-die temperature sensor (TSN); supports precision sensing without external components. |
| Capacitive Touch | CTSU2 unit with up to 20 touch channels (CFC:15); provides noise-immune, low-power human interface for buttons/sliders without external ICs. |
| Security | AES128/256 encryption engine and True Random Number Generator (TRNG); meets basic cryptographic requirements for secure boot and data confidentiality. |
| Power & Temp | 1.6–5.5 V supply range; operates from -40°C to +105°C; supports multiple low-power modes including deep software standby with RTC wake-up. |
| I/O Capability | 37 general-purpose I/O pins (LQFP-48), including 3× 5-V tolerant inputs, 26× N-ch open-drain outputs, and configurable pull-ups. |
Pinout & Package
Package: 48-pin LQFP (7 mm × 7 mm, 0.5 mm pitch), industrial-grade (-40°C to +105°C), Pb-free Sn terminal finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dual power domains: VCC powers digital logic; AVCC0/AVSS0 isolate analog section for clean ADC reference. |
| P010/VREFH0, P011/VREFL0 | Analog reference inputs | Enable external or internal reference selection for 12-bit ADC; critical for measurement repeatability across voltage/temp. |
| XTAL / EXTAL / XCIN / XCOUT | Crystal oscillator interfaces | Supports main (1–20 MHz) and sub-clock (32.768 kHz) crystals; enables precise timing for RTC and communication baud rates. |
| SWDIO / SWCLK | Debug interface | Two-pin Serial Wire Debug (SW-DP) for programming, real-time trace, and non-intrusive breakpoint debugging. |
| TS00–TS16-CFC | Capacitive touch inputs | CTSU2 dedicated pins; support mutual/self-capacitance sensing with programmable sensitivity and noise cancellation. |
| AN000–AN010, AN017–AN022 | ADC analog inputs | 13-channel analog multiplexer; allows simultaneous sampling of sensors, battery voltage, and thermal feedback signals. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | Active current as low as 62 µA/MHz; deep software standby mode draws only 0.25 µA with RTC running - extends battery life in portable devices. |
| Integrated safety mechanisms | SRAM parity checking, flash area protection, ADC self-diagnosis, CAC, CRC calculator, and independent watchdog (IWDT) - supports IEC 61508 SIL-2 readiness. |
| Flexible timer subsystem | GPT32 × 1, GPT16 × 6, AGT × 2, RTC, WDT/IWDT - enables motor control (BLDC via GTOUUP/GTOULO), time-stamped event logging, and fail-safe timeout supervision. |
| Hardware-accelerated data processing | Data Transfer Controller (DTC) and Data Operation Circuit (DOC) offload CPU for memory moves and 16-bit arithmetic comparisons - reduces firmware latency and interrupt load. |
| Multi-protocol connectivity | SCI × 4 (UART/SPI/I²C/smart card), IIC × 1, SPI × 1 - supports mixed-interface sensor hubs, industrial gateways, and legacy protocol bridging without external transceivers. |
Applications
| Industrial Control Panel | Smart Home Sensor Node |
|---|---|
Use Scenario: Local HMI on PLC-mounted operator interface with tactile feedback and status indicators. IC Role / Device Role / Timing Role: Main controller executing real-time state machine, driving capacitive touch overlay, and managing RS-485/UART fieldbus communication. Use Value: CTSU2 eliminates mechanical buttons; 48-MHz Cortex-M23 handles UI rendering and protocol stack concurrently; 105°C rating ensures reliability in enclosed cabinets. | Use Scenario: Battery-powered occupancy/motion sensor with ambient light and temperature monitoring. IC Role / Device Role / Timing Role: System-on-chip managing sensor fusion (ADC + TSN), BLE host interface (via SCI UART), and ultra-low-power sleep/wake scheduling. Use Value: 0.25 µA deep standby with RTC wake-up extends 2-AA battery life beyond 5 years; integrated TRNG secures over-the-air firmware updates. |
| Medical Wearable Monitor | Energy Meter Front-End |
Use Scenario: Compact wearable device measuring skin temperature and pulse via analog front-end. IC Role / Device Role / Timing Role: Analog signal acquisition hub with 12-bit ADC, ACMPLP for threshold detection, and encrypted data logging to flash. Use Value: On-die TSN and ACMPLP enable contactless temperature trending; AES256 protects patient health data before transmission. | Use Scenario: DIN-rail mounted electricity meter performing voltage/current sampling and tariff calculation. IC Role / Device Role / Timing Role: Metrology co-processor interfacing with isolated sigma-delta ADCs, calculating kWh via DOC-assisted arithmetic, and storing billing data in protected flash. Use Value: CRC calculator validates meter register writes; flash area protection prevents unauthorized firmware modification; 5-V tolerant I/O simplifies interface to legacy opto-coupled isolators. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FA2E1A52DFL#AA0 | Same core, memory, and peripherals but rated for -40°C to +85°C industrial grade; lacks extended temperature qualification. | Suitable for indoor consumer or commercial equipment where ambient temperature remains below 85°C. | Select when full 105°C operation is unnecessary and cost optimization is prioritized over extended thermal margin. |
| STM32L412KBU6 | Arm Cortex-M4F @ 80 MHz, 128-KB flash, 48-KB RAM, no CTSU; includes FPU and LCD controller not present in R7FA2E1A53CFL#AA0. | Better suited for floating-point math or display-driven applications; lacks integrated capacitive touch hardware acceleration. | Choose when application requires DSP capability or graphical UI, but accept higher BOM cost and absence of native touch sensing. |
Compared with R7FA2E1A52DFL#AA0, the R7FA2E1A53CFL#AA0 adds guaranteed 105°C operation and identical feature set; versus STM32L412KBU6, it trades FPU and larger memory for lower power, integrated CTSU2, and Renesas' RA ecosystem tooling - favoring touch-centric, thermally demanding edge nodes.
Availability
R7FA2E1A53CFL#AA0 is available at Aetrix Electronics and suitable for industrial control panels, smart home sensor nodes, medical wearables, energy meter front-ends, and battery-powered HMI requiring stable component supply across extended temperature ranges.
Supply support for R7FA2E1A53CFL#AA0 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 RA2E1 Group targets cost-optimized, ultra-low-power 32-bit MCUs for industrial and consumer HMI, sensor edge, and battery-operated applications - emphasizing ease of use, security foundations, and rapid development with Flexible Software Package (FSP).
FAQ
What is the maximum operating frequency of the R7FA2E1A53CFL#AA0?
The R7FA2E1A53CFL#AA0 features an Arm Cortex-M23 core with a maximum operating frequency of 48 MHz. This speed is achievable using the high-speed on-chip oscillator (HOCO) or an external crystal up to 20 MHz with PLL multiplication. The MCU maintains full peripheral functionality and timing accuracy at this frequency across its specified -40°C to +105°C operating range.
Does the R7FA2E1A53CFL#AA0 support capacitive touch sensing?
Yes, the R7FA2E1A53CFL#AA0 integrates the Capacitive Sensing Unit version 2 (CTSU2), supporting up to 20 touch channels with 15 CFC (capacitance-to-frequency conversion) channels. It provides hardware-accelerated touch detection with built-in noise cancellation, enabling robust button, slider, and proximity sensing without external components - a key differentiator for HMI-focused designs.
What security features are included in the R7FA2E1A53CFL#AA0?
The R7FA2E1A53CFL#AA0 includes AES128/256 encryption hardware acceleration and a True Random Number Generator (TRNG) for cryptographic key generation. Additional security elements include flash area protection, register write protection, SRAM parity error detection, and a Clock Frequency Accuracy Measurement Circuit (CAC) - collectively supporting secure boot, data confidentiality, and tamper-resistant operation in industrial environments.
What package type and pin count does the R7FA2E1A53CFL#AA0 use?
The R7FA2E1A53CFL#AA0 is supplied in a 48-pin LQFP package (7 mm × 7 mm, 0.5 mm pitch), designated by the "FL" suffix in its part number. It provides 37 general-purpose I/O pins, 3× 5-V tolerant inputs, 26× N-ch open-drain outputs, and dedicated pins for debug (SWDIO/SWCLK), power (VCC/VSS/AVCC0/AVSS0), and capacitive touch (TSxx).
How does the R7FA2E1A53CFL#AA0 handle low-power operation?
The R7FA2E1A53CFL#AA0 supports multiple low-power modes including software standby with RTC active (0.25 µA), deep software standby (0.19 µA), and various stop modes. Its power management leverages clock gating, module stop control, and voltage scaling - enabled by the Low Voltage Detection (LVD) circuit and configurable power control registers - to minimize energy consumption in battery-powered and energy-harvesting applications.
R7FA2E1A53CFL#AA0 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, Capacitive Touch, 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 ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7FA2E1A53CFL#AA0 FAQ
1.How can I place an order for R7FA2E1A53CFL#AA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA2E1A53CFL#AA0 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 R7FA2E1A53CFL#AA0 reliable?
The price and inventory of R7FA2E1A53CFL#AA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA2E1A53CFL#AA0 is usually 5 days.
3.What payment methods are accepted for R7FA2E1A53CFL#AA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FA2E1A53CFL#AA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FA2E1A53CFL#AA0?
R7FA2E1A53CFL#AA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FA2E1A53CFL#AA0 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 R7FA2E1A53CFL#AA0?
For technical support, including R7FA2E1A53CFL#AA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA2E1A53CFL#AA0 requirements.
6.How does Aetrix verify that R7FA2E1A53CFL#AA0 is sourced from the original manufacturer or authorized distributors?
All R7FA2E1A53CFL#AA0 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 R7FA2E1A53CFL#AA0 meets industry standards.
7.What is the process for return or replacement of R7FA2E1A53CFL#AA0?
All R7FA2E1A53CFL#AA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA2E1A53CFL#AA0, 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 R7FA2E1A53CFL#AA0 part is unused and in its original packaging.
Return procedure for R7FA2E1A53CFL#AA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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