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Renesas R7FA2E1A92DFL#AA0
- Part No.:
- R7FA2E1A92DFL#AA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
R7FA2E1A92DFL#AA0.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 48LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,025
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Product details
Overview
R7FA2E1A92DFL#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 R7FA2E1A92DFL#AA0 datasheet, R7FA2E1A92DFL#AA0 pinout, R7FA2E1A92DFL#AA0 application, or R7FA2E1A92DFL#AA0 equivalent, key selection criteria include its 48-pin LQFP package with 37 I/O pins, -40°C to +85°C industrial temperature grade, CTSU2-based touch sensing capability, and support for multiple low-power modes with RTC and AGT timers.
Technical Context
The R7FA2E1A92DFL#AA0 implements the Armv8-M architecture with Memory Protection Unit (MPU) and CoreSight™ debug infrastructure (SW-DP, MTB-M23). Its system-level timing relies on dual-clock domain operation: main oscillator (1–20 MHz) and sub-clock (32.768 kHz), with clock accuracy verified via CAC circuitry.
Analog subsystem integration includes ADC12 with 13 selectable channels, two low-power analog comparators (ACMPLP), and on-die temperature sensor (TSN) routed to ADC input. Human-machine interface is enabled by CTSU2 supporting up to 20 touch channels with CFC-based noise immunity-confirmed for this 48-pin variant per Table 1.13.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M23, 48 MHz max - enables real-time deterministic execution with TrustZone®-Lite security isolation. |
| Memory | 128-KB code flash + 4-KB data flash + 16-KB SRAM - supports firmware updates, parameter storage, and runtime data buffering without external memory. |
| Analog Peripherals | 12-bit ADC12 (13 ch), 2× ACMPLP, TSN - provides precision sensor signal acquisition and threshold detection in low-power modes. |
| Touch Interface | CTSU2 with 20 touch channels - delivers robust capacitive touch sensing for buttons/sliders without dedicated ASIC or external components. |
| Security | AES128/256 + TRNG - enables secure boot, encrypted communication, and key generation compliant with IEC 62443-3-3 SL2 requirements. |
| Power & Temp | 1.6–5.5 V supply, -40°C to +85°C - suitable for wide-input industrial sensors and consumer devices operating across unregulated environments. |
| Timers | GPT32 ×1, GPT16 ×6, AGT ×2, RTC, WDT/IWDT - supports motor control PWM, event timing, calendar functions, and fail-safe watchdog supervision. |
Pinout & Package
Package: 48-pin LQFP (7 mm × 7 mm, 0.5 mm pitch), industrial-grade (-40°C to +85°C), Pb-free Sn terminal finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dual power domains: VCC powers digital core and I/O; AVCC0/AVSS0 isolate analog section to minimize noise coupling into ADC/CTSU. |
| P000–P015, P100–P113, P200–P215, P300–P304, P400–P411, P500–P502 | General-purpose I/O | 37 configurable GPIOs with 5-V tolerance on 3 pins, pull-up resistors, and N-ch open-drain outputs - simplifies level-shifting and bus interfacing. |
| XTAL / EXTAL / XCIN / XCOUT | Crystal oscillator interface | Supports external crystal (1–20 MHz) and 32.768 kHz sub-clock - enables precise timing for RTC and low-power wake-up intervals. |
| SWDIO / SWCLK | Debug interface | 2-pin Serial Wire Debug - allows full programming, trace, and real-time debugging without dedicated JTAG pins. |
| AN000–AN010, AN017–AN022 | ADC input channels | 13 dedicated analog inputs - includes internal references (VREFH0/VREFL0) and TSN output, enabling self-calibrating temperature-aware systems. |
| TS00, TS02–TS07, TS08–TS16, TS17–TS28, TS30–TS34 | CTSU2 touch electrodes | 20 validated touch pins - supports multi-button, slider, and proximity detection with built-in noise cancellation and auto-tuning. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | Sub-μA deep-sleep current with RTC and AGT active - extends battery life in coin-cell-powered IoT endpoints beyond 5 years. |
| Capacitive Touch Sensing Unit (CTSU2) | 20-channel touch support with CFC-based noise immunity - eliminates need for external touch controllers in appliance control panels. |
| Functional Safety Support | SRAM parity, flash area protection, ADC self-diagnosis, CAC, and IWDT - satisfies IEC 61508 SIL2 and ISO 13849 PL d requirements out-of-the-box. |
| Secure Boot & Cryptography | AES128/256 acceleration + TRNG - enables secure firmware authentication and encrypted over-the-air (OTA) updates without software-only crypto overhead. |
| Flexible Clock System | 6 independent clock sources (HOCO/MOCO/LOCO/SOSC/MOSC/IWDT-OSC) with trim and clock-out - simplifies timing design across mixed-signal subsystems and reduces BOM count. |
Applications
| Smart Home Thermostat | 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 system controller managing touch UI, ADC sampling, RTC-based scheduling, and SPI/I2C peripheral coordination. Use Value: Integrated CTSU2 eliminates external touch IC; 128-KB flash hosts both application and OTA update image; low-power modes extend battery backup to >10 years. | Use Scenario: Battery-powered vibration/temperature monitor deployed in factory machinery with 10-year maintenance interval. IC Role / Device Role / Timing Role: Edge intelligence node performing analog sensor conditioning, event-triggered wake-up via AGT, and secure data packaging before transmission. Use Value: Sub-μA deep-sleep current with RTC alarm and AGT wake-up enables decade-long operation; AES/TRNG secures sensor data integrity end-to-end. |
| Medical Wearable Patch | Appliance Control Panel |
Use Scenario: Disposable ECG patch requiring clinical-grade signal fidelity, low-power operation, and tamper-resistant firmware. IC Role / Device Role / Timing Role: Signal acquisition controller running ADC12 at 1 kSPS, applying real-time filtering via DTC-assisted transfers, and enforcing secure boot. Use Value: 12-bit ADC with internal reference and TSN enables calibrated biopotential measurement; MPU and register write protection prevent runtime corruption. | Use Scenario: Microwave oven or washing machine front panel with touch sliders, LED indicators, and motor control feedback. IC Role / Device Role / Timing Role: HMI coordinator handling CTSU2 touch detection, GPT-driven PWM for LED dimming, and SCI-based communication with main MCU. Use Value: 20-channel CTSU2 supports multi-slider UI; GPT32/GPT16 generate precise 1–20 kHz PWM for flicker-free LED control; 5-V tolerant I/O interfaces directly with legacy displays. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FA2E1A93CFL#AA0 | Same core, memory, and peripherals but rated for -40°C to +105°C industrial extended temperature range. | Required for under-hood automotive or high-ambient industrial enclosures exceeding 85°C. | Select when ambient operating temperature exceeds +85°C; otherwise, R7FA2E1A92DFL#AA0 offers cost and power advantage. |
| R7FA2E1A72DFL#AA0 | 64-KB code flash (vs. 128 KB), identical package, temperature grade, and peripheral set. | Suitable for simpler firmware stacks where bootloader + application fit within 64 KB, reducing flash cost and test time. | Choose when application firmware size is ≤56 KB after linker optimization and no future feature expansion is planned. |
Compared with R7FA2E1A93CFL#AA0, the R7FA2E1A92DFL#AA0 trades extended temperature rating for lower unit cost and marginally reduced thermal derating; versus R7FA2E1A72DFL#AA0, it doubles flash capacity for field-upgradable features while maintaining identical pinout and power profile.
Availability
R7FA2E1A92DFL#AA0 is available at Aetrix Electronics and suitable for smart home thermostats, industrial sensor nodes, medical wearables, and appliance control panels requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.
Supply support for R7FA2E1A92DFL#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 is designed for ultra-low-power, cost-sensitive general-purpose microcontroller applications, emphasizing capacitive touch, security, and functional safety compliance in compact packages like the 48-pin LQFP used by R7FA2E1A92DFL#AA0.
FAQ
What is the maximum operating frequency of the R7FA2E1A92DFL#AA0?
The R7FA2E1A92DFL#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 external crystal, and is maintained across the full industrial temperature range (-40°C to +85°C) and supply voltage (1.6–5.5 V). The R7FA2E1A92DFL#AA0 includes clock monitoring via CAC to ensure timing accuracy during operation.
Does the R7FA2E1A92DFL#AA0 support capacitive touch sensing?
Yes, the R7FA2E1A92DFL#AA0 integrates the Capacitive Sensing Unit version 2 (CTSU2) and supports up to 20 touch channels, as confirmed in Table 1.13 of the datasheet for the 48-pin FL package variants. This enables robust button, slider, and proximity detection without external components, with built-in noise cancellation and auto-tuning algorithms supported by the hardware.
What are the memory resources available on the R7FA2E1A92DFL#AA0?
The R7FA2E1A92DFL#AA0 provides 128-KB of code flash memory, 4-KB of data flash memory (rated for 100,000 program/erase cycles), and 16-KB of SRAM with parity protection. These resources are sufficient to host complex firmware with secure boot, OTA update capability, and real-time data buffering - all confirmed in Section 1.1 and Table 1.2 of the R01DS0386EJ0170 datasheet.
Which debug interface does the R7FA2E1A92DFL#AA0 use?
The R7FA2E1A92DFL#AA0 uses Serial Wire Debug (SWD) with SWDIO and SWCLK pins, compliant with Arm CoreSight™ MTB-M23 and SW-DP standards. This 2-pin interface supports full programming, real-time tracing, and non-intrusive debugging without requiring JTAG pins, and is physically implemented on pins P108 and P300 as shown in Figure 1.5 (48-pin LQFP pinout).
What is the operating temperature range and package type of the R7FA2E1A92DFL#AA0?
The R7FA2E1A92DFL#AA0 is packaged in a 48-pin LQFP (7 mm × 7 mm, 0.5 mm pitch) and rated for industrial operation from -40°C to +85°C. This is explicitly defined in the part numbering scheme ('2' = -40°C to +85°C; 'FL' = 48-pin LQFP) and confirmed in Table 1.12 and Figure 1.2 of the R01DS0386EJ0170 datasheet.
R7FA2E1A92DFL#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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7FA2E1A92DFL#AA0 FAQ
1.How can I place an order for R7FA2E1A92DFL#AA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA2E1A92DFL#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 R7FA2E1A92DFL#AA0 reliable?
The price and inventory of R7FA2E1A92DFL#AA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA2E1A92DFL#AA0 is usually 5 days.
3.What payment methods are accepted for R7FA2E1A92DFL#AA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FA2E1A92DFL#AA0 transactions.
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R7FA2E1A92DFL#AA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FA2E1A92DFL#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 R7FA2E1A92DFL#AA0?
For technical support, including R7FA2E1A92DFL#AA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA2E1A92DFL#AA0 requirements.
6.How does Aetrix verify that R7FA2E1A92DFL#AA0 is sourced from the original manufacturer or authorized distributors?
All R7FA2E1A92DFL#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 R7FA2E1A92DFL#AA0 meets industry standards.
7.What is the process for return or replacement of R7FA2E1A92DFL#AA0?
All R7FA2E1A92DFL#AA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA2E1A92DFL#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 R7FA2E1A92DFL#AA0 part is unused and in its original packaging.
Return procedure for R7FA2E1A92DFL#AA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R7FA2E1A92DFL#AA0 Tags
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