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Renesas R7FA2E1A93CFL#AA0
- Part No.:
- R7FA2E1A93CFL#AA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
R7FA2E1A93CFL#AA0.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 48LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,071
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Product details
Overview
R7FA2E1A93CFL#AA0 from Renesas is an ultra-low-power 32-bit Arm® Cortex®-M23 microcontroller operating at up to 48 MHz, featuring 128-KB code flash, 16-KB SRAM, a 12-bit ADC, Capacitive Sensing Unit (CTSU2), and integrated security (AES128/256, TRNG). It targets battery-powered HMI, sensor nodes, and industrial control where low power, touch interface, and functional safety are critical.
For engineers reviewing the R7FA2E1A93CFL#AA0 datasheet, R7FA2E1A93CFL#AA0 pinout, R7FA2E1A93CFL#AA0 application, or R7FA2E1A93CFL#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 sensing capability, and dual watchdog timers (WDT/IWDT) for fail-safe operation.
Technical Context
The R7FA2E1A93CFL#AA0 implements the Armv8-M architecture with Memory Protection Unit (MPU) supporting 8 regions, enabling secure partitioning of firmware and data. Its system-level timing relies on multiple clock sources including HOCO (48 MHz), SOSC (32.768 kHz), and IWDT-dedicated 15-kHz oscillator for independent fault recovery.
Peripheral integration centers on event-driven efficiency: the Event Link Controller (ELC) enables direct hardware-to-hardware triggering without CPU intervention, while the Data Transfer Controller (DTC) offloads memory transfers during interrupt servicing. Safety features include SRAM parity checking, flash area protection, and ADC self-diagnosis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M23 @ 48 MHz max - delivers deterministic real-time response with TrustZone-enabled security isolation. |
| Memory | 128-KB code flash + 4-KB data flash + 16-KB SRAM with parity - supports firmware updates, parameter storage, and robust runtime data handling. |
| Analog Peripherals | 12-bit ADC12 (13 channels), 2× ACMPLP, TSN - enables precision sensor acquisition and thermal monitoring in compact systems. |
| Capacitive Sensing | CTSU2 with up to 20 touch channels - provides reliable, low-power button/slider detection without external components. |
| Security | AES128/256 + TRNG - enables secure boot, encrypted communication, and key generation for IoT edge devices. |
| Power Range | VCC = 1.6 V to 5.5 V - allows direct interfacing with 3.3-V or 5-V peripherals and battery operation down to 1.6 V. |
| Temperature Grade | -40°C to +105°C - qualified for industrial motor drives, smart meters, and automotive cabin controls. |
Pinout & Package
Package: 48-pin LQFP (7 mm × 7 mm, 0.5 mm pitch), RoHS-compliant Sn finish, industrial-grade thermal rating (-40°C to +105°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dual VCC pins (pins 1, 48) and three VSS pins (pins 2, 24, 47) ensure stable core/analog power delivery and noise reduction. |
| P010/VREFH0, P011/VREFL0 | Analog reference inputs | Enable precise 12-bit ADC conversions using internal or external reference voltage; VREFH0 connects to AVCC0 by default. |
| AVCC0 / AVSS0 | Analog power domain | Dedicated analog supply (pin 39) and ground (pin 40) isolate sensitive ADC/CTSU circuitry from digital noise. |
| P300/SWCLK, P108/SWDIO | Debug interface | Standard 2-pin SWD interface supports programming, real-time debugging, and trace without dedicated JTAG pins. |
| P212/EXTAL, P213/XTAL | Main crystal oscillator | Supports 1–20 MHz external crystal for high-accuracy system clock; optional external clock input via EXTAL. |
| P214/XCOUT, P215/XCIN | Sub-clock oscillator | Connects 32.768 kHz crystal for RTC operation and low-power wake-up timing independent of main clock. |
| TSxx pins (e.g., P000–P015, P100–P112) | CTSU2 touch electrodes | 20 dedicated CTSU2-capable pins (per Table 1.13) enable multi-button or slider implementations with minimal PCB routing. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | Active current as low as 62 µA/MHz; deep sleep modes down to 0.25 µA with RTC + CTSU2 wake-up - extends battery life in portable sensors. |
| Hardware-accelerated security | AES128/256 engine + TRNG performs encryption/decryption in <100 cycles per block - enables TLS handshake acceleration in constrained edge nodes. |
| Event-driven peripheral linking | ELC routes 128+ event sources (e.g., ADC EOC, timer overflow) directly to 32+ destinations (e.g., DTC, GPT) - eliminates CPU polling overhead. |
| Functional safety support | CAC measures clock accuracy in real time; CRC calculator monitors memory writes; DOC validates data integrity - satisfies IEC 61508 SIL2 diagnostics coverage. |
| Robust HMI interface | CTSU2 supports proximity, gesture, and wet-hand operation with built-in noise cancellation - reduces BOM cost vs. external touch controllers. |
Applications
| Smart Thermostat Interface | Industrial Sensor Node |
|---|---|
Use Scenario: Wall-mounted HVAC controller with capacitive touch buttons, ambient temperature/humidity sensing, and wireless connectivity. IC Role / Device Role / Timing Role: Main application MCU managing touch UI, ADC sampling, RTC scheduling, and SPI/I2C peripheral control. Use Value: CTSU2 enables seamless glass-front design; 16-KB SRAM buffers sensor logs; AES secures OTA firmware updates. | Use Scenario: Battery-powered vibration/temperature monitor mounted on rotating machinery in factory settings. IC Role / Device Role / Timing Role: Low-power data acquisition unit with wake-on-event, analog front-end conditioning, and secure data packaging. Use Value: AGT timers trigger periodic wake-ups; TSN + ADC12 provide calibrated thermal readings; IWDT ensures recovery from brownout-induced lockup. |
| Programmable Logic Controller (PLC) I/O Module | Medical Patient Monitor Front Panel |
Use Scenario: DIN-rail mounted I/O expansion module with digital inputs, relay outputs, and Modbus RTU over SCI. IC Role / Device Role / Timing Role: Real-time control processor executing logic sequences, managing SCI UART framing, and supervising power domains. Use Value: GPT16 timers generate precise PWM for LED status indicators; LVD0/LVD1 detect supply dips before system reset; MPU enforces firmware partitioning. | Use Scenario: Touch-enabled bedside monitor displaying vital signs with ESD-hardened front panel and low-noise analog acquisition. IC Role / Device Role / Timing Role: Human interface and signal conditioning MCU handling touch events, ADC sampling of biopotentials, and SPI display refresh. Use Value: CTSU2 rejects ESD pulses per IEC 61000-4-2 Level 4; AVCC0/AVSS0 isolation minimizes ADC noise; TRNG seeds secure session keys for HIPAA-compliant comms. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FA2E1A92DFL#AA0 | Same package and pinout; reduced temperature grade (-40°C to +85°C); identical flash/SRAM/peripherals. | Suitable for commercial-grade consumer electronics where extended temperature is not required. | Select when cost sensitivity outweighs industrial ambient requirements and full 105°C operation is unnecessary. |
| R7FA2E1A73CFL#AA0 | Same package and temperature grade; reduced code flash (64 KB); otherwise identical peripheral set and performance. | Appropriate for firmware-light applications such as simple sensor hubs or basic HMI controllers. | Choose when application firmware size remains under 64 KB and future feature expansion is limited. |
Compared with R7FA2E1A92DFL#AA0 and R7FA2E1A73CFL#AA0, the R7FA2E1A93CFL#AA0 uniquely combines 128-KB flash, full industrial temperature range, and CTSU2 in a 48-pin LQFP-making it optimal for next-generation touch-enabled industrial controllers requiring field-upgradable firmware and long-term reliability.
Availability
R7FA2E1A93CFL#AA0 is available at Aetrix Electronics and suitable for smart thermostats, industrial sensor nodes, PLC I/O modules, and medical front panels requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R7FA2E1A93CFL#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, including the R7FA2E1A93CFL#AA0, was designed specifically for ultra-low-power, cost-sensitive industrial and consumer HMI applications-integrating capacitive touch, security, and functional safety into a single compact MCU.
FAQ
What is the maximum operating frequency of the R7FA2E1A93CFL#AA0?
The R7FA2E1A93CFL#AA0 operates at a maximum frequency of 48 MHz using its Arm Cortex-M23 core. This speed is achievable with the high-speed on-chip oscillator (HOCO) or an external crystal up to 20 MHz multiplied via PLL. The MCU maintains full peripheral functionality-including ADC sampling, CTSU2 scanning, and SCI communication-at this frequency.
Does the R7FA2E1A93CFL#AA0 support capacitive touch sensing?
Yes, the R7FA2E1A93CFL#AA0 integrates the Capacitive Sensing Unit version 2 (CTSU2), supporting up to 20 touch channels in its 48-pin LQFP configuration. It enables robust, low-power touch button, slider, and proximity detection with built-in noise cancellation-eliminating the need for external touch controller ICs in designs like smart thermostats or medical device interfaces.
What security features are implemented in the R7FA2E1A93CFL#AA0?
The R7FA2E1A93CFL#AA0 includes AES128/256 hardware encryption, a True Random Number Generator (TRNG), flash area protection, register write protection, and SRAM parity checking. These features collectively support secure boot, encrypted communication, and tamper-resistant key storage-meeting foundational requirements for IoT edge devices requiring data confidentiality and firmware integrity.
What is the operating temperature range for the R7FA2E1A93CFL#AA0?
The R7FA2E1A93CFL#AA0 is rated for industrial operation from -40°C to +105°C. This extended temperature grade is confirmed in Table 1.12 of the datasheet and applies to all package variants including the 48-pin LQFP (FL). It ensures reliable performance in demanding environments such as factory automation equipment, smart metering, and under-hood automotive cabin modules.
How many general-purpose I/O pins does the R7FA2E1A93CFL#AA0 provide?
The R7FA2E1A93CFL#AA0 provides 37 general-purpose I/O pins in its 48-pin LQFP package, as specified in Table 1.10. These include 37 I/O pins with pull-up resistors, 26 N-channel open-drain outputs, and 3 pins tolerant to 5-V signals-enabling direct interfacing with legacy 5-V peripherals without level shifters.
R7FA2E1A93CFL#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:
- 128KB (128K 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:
R7FA2E1A93CFL#AA0 FAQ
1.How can I place an order for R7FA2E1A93CFL#AA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA2E1A93CFL#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 R7FA2E1A93CFL#AA0 reliable?
The price and inventory of R7FA2E1A93CFL#AA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA2E1A93CFL#AA0 is usually 5 days.
3.What payment methods are accepted for R7FA2E1A93CFL#AA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FA2E1A93CFL#AA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FA2E1A93CFL#AA0?
R7FA2E1A93CFL#AA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FA2E1A93CFL#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 R7FA2E1A93CFL#AA0?
For technical support, including R7FA2E1A93CFL#AA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA2E1A93CFL#AA0 requirements.
6.How does Aetrix verify that R7FA2E1A93CFL#AA0 is sourced from the original manufacturer or authorized distributors?
All R7FA2E1A93CFL#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 R7FA2E1A93CFL#AA0 meets industry standards.
7.What is the process for return or replacement of R7FA2E1A93CFL#AA0?
All R7FA2E1A93CFL#AA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA2E1A93CFL#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 R7FA2E1A93CFL#AA0 part is unused and in its original packaging.
Return procedure for R7FA2E1A93CFL#AA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R7FA2E1A93CFL#AA0 Tags
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