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Renesas R7FA2E1A73CFM#AA0
- Part No.:
- R7FA2E1A73CFM#AA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R7FA2E1A73CFM#AA0.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 64LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,947
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Product details
Overview
R7FA2E1A73CFM#AA0 from Renesas is an ultra-low-power 32-bit Arm® Cortex®-M23 microcontroller operating at up to 48 MHz, featuring 64-KB code flash, 16-KB SRAM, a 12-bit ADC, capacitive touch sensing (CTSU2), and integrated security (AES128/256, TRNG). It targets battery-powered HMI, industrial sensors, and smart home controllers requiring robust safety features and sub-100 µA/MHz active power.
For engineers reviewing the R7FA2E1A73CFM#AA0 datasheet, R7FA2E1A73CFM#AA0 pinout, R7FA2E1A73CFM#AA0 application, or R7FA2E1A73CFM#AA0 equivalent, key selection criteria include its 64-pin LQFP-0.5 mm package, -40°C to +105°C industrial temperature grade, CTSU2 channel count (30), and dual watchdog timers (WDT/IWDT) with independent clock sources.
Technical Context
The R7FA2E1A73CFM#AA0 implements 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 fail-safe reset generation.
Peripheral integration centers on event-driven operation: the Event Link Controller (ELC) enables direct hardware-to-hardware triggering between modules (e.g., ADC conversion start → DTC transfer), while the Data Transfer Controller (DTC) handles memory moves without CPU intervention-critical for low-power deterministic response in sensor fusion or motor control loops.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M23 @ 48 MHz max; supports TrustZone for secure boot and peripheral isolation. |
| Memory | 64-KB code flash (100k erase cycles), 4-KB data flash, 16-KB SRAM with parity; enables firmware updates and runtime data logging. |
| Analog Peripherals | 12-bit ADC12 with 13 input channels, 2× ACMPLP comparators, TSN temperature sensor; supports precision sensor signal acquisition. |
| Capacitive Touch | CTSU2 with 30 touch channels and 18 CFCs; delivers robust button/slider detection through overlay materials. |
| Security | AES128/256 acceleration + True Random Number Generator (TRNG); meets IEC 62443-3-3 SL2 requirements for secure communication. |
| Power Management | Operating voltage 1.6–5.5 V; low-power modes down to 0.25 µA (RTC+SRAM retention); suitable for coin-cell operation. |
| Safety Features | CRC calculator, DOC data operation circuit, SRAM parity, CAC clock accuracy monitor, IWDT with dedicated oscillator; supports ISO 13849 PL e/Cat 3 compliance. |
Pinout & Package
Package: 64-pin LQFP (10 mm × 10 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 VCC pins (pins 15, 48) and three VSS pins (pins 16, 32, 47) enable low-noise analog/digital domain separation. |
| P010/VREFH0, P011/VREFL0 | ADC reference inputs | Independent high/low reference pins allow ratiometric or absolute voltage measurement with external precision references. |
| SWDIO / SWCLK | Debug interface | 2-pin Serial Wire Debug supports programming, real-time trace, and non-intrusive breakpoints during low-power operation. |
| XTAL / EXTAL | Main crystal oscillator | Supports 1–20 MHz external crystals; required for high-accuracy timing in communication or motor control applications. |
| TS00–TS34-CFC | Capacitive touch inputs | 30 dedicated CTSU2 pins (e.g., TS00, TS04–TS07) enable multi-button, slider, or proximity sensing with noise immunity. |
Key Features
| Feature | Design Value |
|---|---|
| Event Link Controller (ELC) | Hardware-triggered peripheral chaining eliminates CPU polling overhead-e.g., ADC end-of-conversion directly starts DTC transfer to SRAM. |
| Low-Power Analog Comparators (ACMPLP) | Two independent comparators with selectable speed modes (high-speed/low-power) enable wake-on-threshold detection with <1 µA quiescent current. |
| Realtime Clock (RTC) | Calendar mode (2000–2099) with leap-year correction and binary counter mode; retains time across deep-sleep modes using sub-clock oscillator. |
| Capacitive Sensing Unit (CTSU2) | Self-capacitance measurement with built-in noise cancellation; supports >100:1 signal-to-noise ratio for touch through 5-mm plastic overlays. |
| Independent Watchdog Timer (IWDT) | Dedicated 15-kHz oscillator ensures fail-safe reset even if main clock fails-critical for safety-critical industrial monitoring. |
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 handling touch UI, ADC sampling, RTC-based scheduling, and SPI/I2C peripheral management. Use Value: CTSU2 enables reliable touch through glass front panel; 16-KB SRAM buffers sensor logs; AES encryption secures OTA firmware updates. | Use Scenario: Battery-powered vibration/temperature node in predictive maintenance systems deployed in factory machinery. IC Role / Device Role / Timing Role: Low-power data acquisition engine with wake-on-event (ACMPLP), ADC-triggered DTC transfers, and RTC timestamping. Use Value: Sub-1 µA deep-sleep current extends 10-year battery life; CAC validates clock integrity before critical measurements. |
| BLDC Motor Control Module | Medical Wearable Monitor |
Use Scenario: Compact fan/pump driver with Hall-effect feedback, PWM output, and over-temperature protection. IC Role / Device Role / Timing Role: Real-time motor controller using GPT32/GPT16 for 3-phase PWM generation and AGT for precise commutation timing. Use Value: GTOUUP/GTOULO pins deliver complementary PWM outputs; IWDT prevents runaway conditions during fault events. | Use Scenario: Clinical-grade pulse oximeter with optical sensor interface, analog front-end, and Bluetooth LE host interface. IC Role / Device Role / Timing Role: Signal processor managing ADC oversampling, TSN-based thermal compensation, and secure BLE packet encryption. Use Value: 12-bit ADC with internal reference achieves <1% gain error; TRNG seeds BLE pairing keys meeting HIPAA requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FA2E1A93CFM#AA0 | 128-KB flash (vs. 64 KB), same 64-pin LQFP-0.5 mm package, identical peripherals and clock architecture. | Supports larger firmware images (e.g., embedded GUI stacks or protocol stacks with TLS). | Select when future firmware expansion headroom or dual-bank OTA update capability is required. |
| STM32L552VET6 | Arm Cortex-M33 core, TrustZone, 512-KB flash, but no integrated CTSU2; requires external touch controller. | Lacks native capacitive touch support; higher BOM cost and PCB area for touch subsystem. | Choose only if ARMv8.1-M extensions or higher flash density outweigh CTSU2 integration benefits. |
Compared with R7FA2E1A73CFM#AA0, R7FA2E1A93CFM#AA0 offers double flash capacity without layout changes, while STM32L552VET6 trades CTSU2 integration for broader cryptographic acceleration-but demands external touch hardware and increases system complexity.
Availability
R7FA2E1A73CFM#AA0 is available at Aetrix Electronics and suitable for smart home controllers, industrial sensor nodes, and medical wearables requiring stable component supply, extended temperature operation, and long-term lifecycle support.
Supply support for R7FA2E1A73CFM#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, and power solutions for automotive, industrial, and IoT markets.
The RA2E1 group-including R7FA2E1A73CFM#AA0-is designed for cost-sensitive, ultra-low-power embedded applications demanding integrated security, capacitive touch, and functional safety features without external components.
FAQ
What is the maximum operating frequency and core architecture of the R7FA2E1A73CFM#AA0?
The R7FA2E1A73CFM#AA0 uses an Arm Cortex-M23 core compliant with Armv8-M architecture and operates at a maximum frequency of 48 MHz. It includes an 8-region Memory Protection Unit (MPU) and supports TrustZone for secure execution environments. This architecture enables deterministic real-time performance while maintaining energy efficiency for battery-powered devices.
Does the R7FA2E1A73CFM#AA0 support capacitive touch sensing, and how many channels are available?
Yes, the R7FA2E1A73CFM#AA0 integrates the Capacitive Sensing Unit version 2 (CTSU2) with 30 touch channels and 18 CFCs (Capacitance-to-Digital Converter channels). This allows implementation of multi-button interfaces, sliders, or proximity sensors through insulating materials-ideal for consumer appliances and industrial HMI panels where mechanical switches are undesirable.
What are the memory resources available on the R7FA2E1A73CFM#AA0?
The R7FA2E1A73CFM#AA0 provides 64-KB of code flash memory (rated for 100,000 program/erase cycles), 4-KB of data flash memory, and 16-KB of SRAM with parity protection. The data flash supports EEPROM-like functionality for parameter storage, while SRAM parity ensures reliability in safety-critical applications such as industrial monitoring.
Which safety and security features does the R7FA2E1A73CFM#AA0 include?
The R7FA2E1A73CFM#AA0 includes SRAM parity checking, Flash area protection, ADC self-diagnosis, Clock Frequency Accuracy Measurement Circuit (CAC), CRC calculator, Data Operation Circuit (DOC), Independent Watchdog Timer (IWDT), and AES128/256 encryption with True Random Number Generator (TRNG). These features collectively support IEC 62443 and ISO 13849 functional safety requirements.
What package type and temperature range does the R7FA2E1A73CFM#AA0 use?
The R7FA2E1A73CFM#AA0 is supplied in a 64-pin LQFP package (10 mm × 10 mm, 0.5 mm pitch) rated for industrial operation from -40°C to +105°C. Its Pb-free Sn terminal finish complies with RoHS directives, and the exposed die pad (in QFN variants) is recommended to be connected to VSS for thermal and electrical stability.
R7FA2E1A73CFM#AA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-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:
- 53
- Program Memory Size:
- 64KB (64K 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:
R7FA2E1A73CFM#AA0 FAQ
1.How can I place an order for R7FA2E1A73CFM#AA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA2E1A73CFM#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 R7FA2E1A73CFM#AA0 reliable?
The price and inventory of R7FA2E1A73CFM#AA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA2E1A73CFM#AA0 is usually 5 days.
3.What payment methods are accepted for R7FA2E1A73CFM#AA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FA2E1A73CFM#AA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FA2E1A73CFM#AA0?
R7FA2E1A73CFM#AA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FA2E1A73CFM#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 R7FA2E1A73CFM#AA0?
For technical support, including R7FA2E1A73CFM#AA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA2E1A73CFM#AA0 requirements.
6.How does Aetrix verify that R7FA2E1A73CFM#AA0 is sourced from the original manufacturer or authorized distributors?
All R7FA2E1A73CFM#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 R7FA2E1A73CFM#AA0 meets industry standards.
7.What is the process for return or replacement of R7FA2E1A73CFM#AA0?
All R7FA2E1A73CFM#AA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA2E1A73CFM#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 R7FA2E1A73CFM#AA0 part is unused and in its original packaging.
Return procedure for R7FA2E1A73CFM#AA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R7FA2E1A73CFM#AA0 Tags
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