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Renesas R7FA2E1A53CNE#AA0
- Part No.:
- R7FA2E1A53CNE#AA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-WFQFN Exposed Pad
- Datasheet:
-
R7FA2E1A53CNE#AA0.pdf
- Description:
- IC MCU 32BIT 32KB FLASH 48HWQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,100
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Product details
Overview
R7FA2E1A53CNE#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 (ADC12), capacitive touch sensing (CTSU2), and hardware AES-128/256 encryption - deployed in battery-powered industrial HMI, smart sensors, and portable medical devices.
For engineers reviewing the R7FA2E1A53CNE#AA0 datasheet, R7FA2E1A53CNE#AA0 pinout, R7FA2E1A53CNE#AA0 application, or R7FA2E1A53CNE#AA0 equivalent, key selection criteria include its 48-pin HWQFN package with 37 I/O pins, -40°C to +105°C industrial temperature grade, integrated CTSU2 for 20-channel touch sensing, dual low-power AGT timers, and support for SCI × 4, SPI × 1, and I²C × 1 interfaces.
Technical Context
The R7FA2E1A53CNE#AA0 implements the Armv8-M architecture with Memory Protection Unit (MPU) and CoreSight™ MTB-M23 trace, enabling secure, deterministic real-time operation. Its clock system integrates HOCO (48 MHz), SOSC (32.768 kHz), and LOCO oscillators with CAC for frequency accuracy monitoring.
System-level features include Event Link Controller (ELC) for CPU-free peripheral chaining, Data Transfer Controller (DTC) for autonomous memory transfers, and safety mechanisms such as SRAM parity checking, Flash area protection, and independent watchdog timer (IWDT) with dedicated 15-kHz oscillator.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M23 @ 48 MHz max - delivers energy-efficient real-time control with TrustZone-enabled security isolation. |
| Memory | 32-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 comparators, TSN temperature sensor - enables precision sensor interfacing without external signal conditioning. |
| Timers | GPT32 × 1, GPT16 × 6, AGT × 2, RTC, WDT/IWDT - provides flexible PWM generation, motor control timing, calendar functions, and fail-safe reset capability. |
| Connectivity | SCI × 4 (UART/IIC/SPI/Smart Card), SPI × 1, I²C × 1 - supports multi-protocol sensor aggregation, display interface, and host MCU communication. |
| HMI & Safety | CTSU2 (20-channel capacitive touch), CRC calculator, DOC, AES-128/256, TRNG - enables secure, low-power touch UIs with built-in data integrity and cryptographic acceleration. |
| Power & Environment | VCC = 1.6–5.5 V; operating temp = -40°C to +105°C; low-power modes including deep software standby - suitable for wide-input industrial and automotive-adjacent applications. |
Pinout & Package
Packaged in a 48-pin HWQFN (7 mm × 7 mm, 0.5 mm pitch) with exposed thermal pad recommended to connect to VSS. Pin count includes 37 general-purpose I/Os, 3 input-only pins, 26 N-ch open-drain outputs, and 3 5-V-tolerant inputs.
| 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 ADC domain for noise immunity. |
| P000–P015, P100–P113, P200–P215, P300–P304, P400–P411, P500–P502, P913–P915 | General-purpose I/O | 37 configurable GPIOs with pull-up, open-drain, 5-V tolerance (3 pins), and programmable drive strength - enable direct LED driving, switch sensing, and level translation. |
| SWDIO / SWCLK | Debug interface | 2-pin Serial Wire Debug (SW-DP) - allows full JTAG-equivalent programming, tracing, and real-time register inspection without additional pins. |
| XTAL / EXTAL / XCIN / XCOUT | Clock sources | Supports external crystal (1–20 MHz), sub-clock (32.768 kHz), and internal HOCO/MOCO/LOCO - enables precise RTC and low-jitter timing across operating modes. |
| AN000–AN010, AN017–AN022 | ADC inputs | 13 analog input channels including internal TSN and VREFH0/VREFL0 - permits simultaneous thermistor, battery voltage, and sensor measurements with 12-bit resolution. |
| TS00, TS02–TS07, TS08–TS16, TS17–TS28, TS30–TS34 | CTSU2 touch electrodes | 20 dedicated capacitive sensing pins with CFC (Capacitance-to-Digital Converter) - supports slider, wheel, and multi-button touch panels with <1 µA average current per channel. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | Typical active current <120 µA/MHz; deep software standby <0.25 µA - extends battery life in coin-cell-powered IoT endpoints beyond 5 years. |
| Hardware-accelerated security | AES-128/256 engine + TRNG + memory protection units - enables secure boot, encrypted firmware updates, and tamper-resistant key storage without CPU overhead. |
| Integrated capacitive touch | CTSU2 with 20-channel support and automatic drift compensation - eliminates need for external touch controller ICs in appliance control panels and medical device interfaces. |
| Robust system safety | IWDT with independent 15-kHz clock, SRAM parity check, Flash area protection, and CAC-based clock monitoring - satisfies IEC 61508 SIL-2 functional safety requirements. |
| Flexible peripheral linking | Event Link Controller (ELC) routes 100+ peripheral events directly between modules - enables synchronized ADC sampling, PWM triggering, and DMA transfers without CPU intervention. |
Applications
| Industrial HMI Panels | Smart Sensor Nodes |
|---|---|
Use Scenario: Touch-enabled control interface on factory floor HMIs with ambient temperature up to +105°C and EMI exposure. IC Role / Device Role / Timing Role: Main application processor managing capacitive buttons, LCD backlight PWM, serial sensor polling, and secure OTA update handling. Use Value: CTSU2 tolerates >1 mm overlay thickness and operates reliably under glove use; 48-pin HWQFN ensures compact PCB layout with minimal decoupling capacitance. |
Use Scenario: Battery-powered environmental monitor logging temperature, humidity, and air quality via I²C sensors and transmitting via UART to gateway. IC Role / Device Role / Timing Role: System-on-chip controller performing ADC acquisition, sensor fusion, low-power sleep scheduling, and encrypted data packet assembly. Use Value: Dual AGT timers wake the MCU precisely on sensor measurement intervals; 16-KB SRAM retains 72 hours of buffered logs during radio-off periods. |
| Portable Medical Devices | Energy Monitoring Meters |
Use Scenario: Handheld pulse oximeter requiring FDA-grade reliability, low-noise analog front-end, and touchless UI feedback. IC Role / Device Role / Timing Role: Signal acquisition and processing unit driving photodiode current-to-voltage conversion, ADC sampling, and real-time SpO₂ calculation. Use Value: ADC12 achieves <±1 LSB INL with internal reference; TSN monitors die temperature to compensate optical path drift; AES encrypts patient data before BLE transmission. |
Use Scenario: DIN-rail mounted electricity meter measuring voltage/current via shunt/resistive dividers and communicating via RS-485. IC Role / Device Role / Timing Role: Metering controller executing RMS calculations, tariff switching, RTC-based billing cycles, and anti-tampering detection. Use Value: GPT32 generates precise 50/60 Hz synchronized sampling windows; LVD0/LVD1/LVD2 detect brown-out conditions to prevent corrupted EEPROM writes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FA2E1A52DNE#AA0 | Same 48-pin HWQFN package and peripherals, but rated for -40°C to +85°C industrial grade and 32-KB flash only. | Suitable for commercial indoor environments where extended temperature range is unnecessary. | Select when cost sensitivity outweighs extended temperature requirement and full 105°C operation is not mandated. |
| R7FA2E1A73CNE#AA0 | Identical package and temperature grade, but with 64-KB code flash and enhanced CTSU2 channel count (15 vs. 20). | Better suited for applications requiring larger firmware (e.g., BLE stack + GUI framework) or higher-resolution touch panels. | Choose when future firmware expansion headroom or increased touch electrode density is required without changing PCB layout. |
Compared with R7FA2E1A52DNE#AA0, the R7FA2E1A53CNE#AA0 adds +20°C operating margin and same-flash capacity; versus R7FA2E1A73CNE#AA0, it trades 32-KB less flash for lower unit cost while retaining identical I/O count, CTSU2 channel allocation, and safety feature set.
Availability
R7FA2E1A53CNE#AA0 is available at Aetrix Electronics and suitable for industrial HMI, smart sensor nodes, portable medical devices, and energy monitoring meters requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R7FA2E1A53CNE#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 is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and enterprise applications.
The RA2E1 group targets cost-sensitive, ultra-low-power embedded systems - designed specifically for battery-operated and energy-harvesting applications demanding security, touch HMI, and functional safety without sacrificing performance.
FAQ
What is the maximum operating frequency and core architecture of the R7FA2E1A53CNE#AA0?
The R7FA2E1A53CNE#AA0 features 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), DWT, FPB, and CoreSight™ MTB-M23 for debug and trace. This architecture enables secure, deterministic real-time execution ideal for safety-critical edge devices.
Does the R7FA2E1A53CNE#AA0 support capacitive touch sensing, and how many channels are available?
Yes, the R7FA2E1A53CNE#AA0 integrates the Capacitive Sensing Unit (CTSU2) supporting up to 20 touch channels. These include TS00, TS02–TS07, TS08–TS16, TS17–TS28, and TS30–TS34 pins - enabling slider, wheel, and multi-button implementations with automatic drift compensation and low-power operation down to <1 µA per channel.
What are the memory resources available on the R7FA2E1A53CNE#AA0?
The R7FA2E1A53CNE#AA0 provides 32-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 error checking. The memory map also includes option-setting memory and a 128-bit unique ID for secure device identification and firmware binding.
Which communication interfaces does the R7FA2E1A53CNE#AA0 support, and how many instances are included?
The R7FA2E1A53CNE#AA0 supports Serial Communications Interface (SCI) × 4 - each configurable as UART, simple I²C, simple SPI, or smart card interface - plus one dedicated I²C bus interface (IIC) and one Serial Peripheral Interface (SPI). All interfaces support asynchronous and synchronous modes with independent baud rate generation.
What is the package type and pin count of the R7FA2E1A53CNE#AA0, and what are its key I/O characteristics?
The R7FA2E1A53CNE#AA0 is housed in a 48-pin HWQFN package (7 mm × 7 mm, 0.5 mm pitch) with an exposed thermal pad. It offers 37 general-purpose I/O pins, 3 input-only pins, 26 N-channel open-drain outputs, and 3 5-V-tolerant inputs - supporting flexible level-shifting, LED driving, and direct connection to legacy 5-V peripherals.
R7FA2E1A53CNE#AA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-WFQFN Exposed Pad
- 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:
R7FA2E1A53CNE#AA0 FAQ
1.How can I place an order for R7FA2E1A53CNE#AA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA2E1A53CNE#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 R7FA2E1A53CNE#AA0 reliable?
The price and inventory of R7FA2E1A53CNE#AA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA2E1A53CNE#AA0 is usually 5 days.
3.What payment methods are accepted for R7FA2E1A53CNE#AA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FA2E1A53CNE#AA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FA2E1A53CNE#AA0?
R7FA2E1A53CNE#AA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FA2E1A53CNE#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 R7FA2E1A53CNE#AA0?
For technical support, including R7FA2E1A53CNE#AA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA2E1A53CNE#AA0 requirements.
6.How does Aetrix verify that R7FA2E1A53CNE#AA0 is sourced from the original manufacturer or authorized distributors?
All R7FA2E1A53CNE#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 R7FA2E1A53CNE#AA0 meets industry standards.
7.What is the process for return or replacement of R7FA2E1A53CNE#AA0?
All R7FA2E1A53CNE#AA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA2E1A53CNE#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 R7FA2E1A53CNE#AA0 part is unused and in its original packaging.
Return procedure for R7FA2E1A53CNE#AA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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