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Renesas R7FA2E1A72DFK#AA0
- Part No.:
- R7FA2E1A72DFK#AA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R7FA2E1A72DFK#AA0.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:490
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Product details
Overview
R7FA2E1A72DFK#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 R7FA2E1A72DFK#AA0 datasheet, R7FA2E1A72DFK#AA0 pinout, R7FA2E1A72DFK#AA0 application, or R7FA2E1A72DFK#AA0 equivalent, this page delivers verified specifications, package mapping, validated alternatives, and design-meaningful feature analysis - all aligned to the RA2E1 Group's industrial-grade (-40°C to +85°C) 64-pin LQFP (0.8 mm pitch) variant.
Technical Context
The R7FA2E1A72DFK#AA0 implements the Armv8-M architecture with an 8-region Memory Protection Unit (MPU), DWT/FPB debug support, and SW-DP CoreSight interface. Its clock system integrates MOSC (1–20 MHz), SOSC (32.768 kHz), and trimmable HOCO/MOCO/LOCO oscillators for precision timing across low-power modes.
It supports hardware-accelerated safety functions including SRAM parity checking, flash area protection, ADC self-diagnosis, CAC for clock accuracy validation, CRC calculator, DOC for 16-bit data operations, and dual watchdogs (WDT + IWDT with independent 15-kHz oscillator) - enabling IEC 61508-compliant system monitoring without software overhead.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M23, 48 MHz max - enables real-time deterministic execution with TrustZone-M isolation for secure firmware partitioning. |
| Memory | 128-KB code flash + 4-KB data flash (100k P/E cycles) + 16-KB SRAM with parity - supports robust firmware updates and runtime data logging in field-deployed devices. |
| Analog Peripherals | 12-bit ADC12 (13 channels), 2× ACMPLP, TSN - provides high-resolution sensor acquisition and on-die temperature monitoring for thermal management. |
| Capacitive Sensing | CTSU2 with up to 30 touch channels - delivers noise-immune, low-power proximity/touch detection for sealed front-panel interfaces. |
| Timers & Control | GPT32 ×1, GPT16 ×6, AGT ×2, RTC, ELC, DTC - enables synchronized PWM generation (e.g., BLDC motor control), event-driven peripheral chaining, and low-power timekeeping. |
| Security | AES128/256 + TRNG - enables authenticated encryption of sensor data and secure key derivation for IoT edge node confidentiality. |
| Operating Range | VCC = 1.6–5.5 V; Ta = –40°C to +85°C - ensures reliable operation across wide input voltage and industrial ambient conditions. |
Pinout & Package
Package: 64-pin LQFP (PLQP0064GA-A), 14 mm × 14 mm, 0.8 mm pitch, exposed pad recommended connected to VSS.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dual VCC pins (pins 15, 48) and three VSS pins (pins 16, 32, 49) enable low-impedance decoupling and noise suppression for analog/digital domains. |
| SWDIO / SWCLK | Debug interface | Pins 30 (SWDIO) and 33 (SWCLK) provide standard 2-pin Serial Wire Debug access for programming and real-time trace without dedicated JTAG pins. |
| XTAL / EXTAL | Main clock oscillator | Pins 62/61 support external crystal (1–20 MHz) or direct clock injection for precise timing-critical applications like UART communication. |
| XCIN / XCOUT | Sub-clock oscillator | Pins 26/25 connect to 32.768 kHz crystal for RTC calendar mode and low-power wake-up timing independent of main clock domain. |
| P010/VREFH0 / P011/VREFL0 | ADC reference | Pins 8/7 define ADC reference voltage range; internal VREF can be used or external reference applied for improved measurement accuracy. |
| TS00–TS34-CFC | Capacitive touch inputs | 30 dedicated CTSU2 pins (e.g., P000, P001, P015, P100–P113, P200–P215, P300–P304, P400–P411, P500–P502, P913–P915) support multi-channel touchpad or slider designs. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | Active current as low as 64 µA/MHz; standby current down to 0.25 µA with RTC running - extends battery life in coin-cell-powered sensors beyond 10 years. |
| Hardware safety acceleration | CAC validates clock accuracy in real time; CRC and DOC perform memory/data integrity checks autonomously - reduces CPU load and enables ASIL-B diagnostic coverage. |
| Flexible connectivity | SCI ×4 (UART/IIC/SPI/Smart Card), IIC ×1, SPI ×1 - allows concurrent communication with displays, EEPROMs, sensors, and legacy peripherals without external level shifters. |
| Robust I/O configuration | 53 GPIOs with 5-V tolerance on 3 pins, N-ch open-drain outputs on 40 pins, programmable pull-ups - simplifies interfacing with mixed-voltage systems and reduces BOM count. |
| Integrated HMI engine | CTSU2 with built-in noise cancellation and automatic calibration - eliminates need for external touch controller IC and reduces PCB layer count in consumer appliance UIs. |
Applications
| Smart Home Thermostat | Industrial Sensor Node |
|---|---|
Use Scenario: Wall-mounted HVAC controller with capacitive touch buttons, ambient temperature/humidity sensing, and wireless telemetry. IC Role / Device Role / Timing Role: Main system MCU handling touch UI, ADC-based sensor reading, RTC-scheduled data logging, and SCI-based UART communication to Wi-Fi module. Use Value: CTSU2 enables waterproof front-panel design; 128-KB flash accommodates OTA update stack; AES256 secures cloud upload credentials. | 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 sampling accelerometer and TSN via ADC12, storing results in SRAM, and waking periodically via AGT to transmit via SCI UART. Use Value: 0.25 µA standby + RTC keeps 10-year battery life; SRAM parity prevents corrupted logs; IWDT ensures recovery from brown-out events. |
| Medical Wearable Patch | POS Terminal Keypad |
Use Scenario: Disposable skin-contact patch measuring body temperature and motion, transmitting alerts via BLE gateway. IC Role / Device Role / Timing Role: Primary sensor hub acquiring TSN and analog bio-signals, performing local threshold detection, and triggering BLE interrupt via KINT on event. Use Value: TRNG generates session keys for BLE pairing; CTSU2 detects finger proximity for auto-wake; 1.6 V min VCC supports aging coin cells. | Use Scenario: Secure retail keypad with tactile feedback, tamper detection, and encrypted PIN entry. IC Role / Device Role / Timing Role: Secure co-processor managing encrypted keypad scan, comparing entered digits against AES-encrypted RAM buffer, and signaling host MCU via IRQ. Use Value: AES128 encrypts PIN in transit; register write protection prevents malicious firmware overwrite; 5-V tolerant GPIOs interface directly with legacy keypad matrix. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FA2E1A92DFK#AA0 | Same package and pinout; rated for –40°C to +105°C; identical peripherals and memory (128-KB flash, 16-KB SRAM). | Targeted for extended-temperature industrial environments (e.g., under-hood automotive, outdoor metering) where +85°C ambient is insufficient. | Select when operating ambient exceeds +85°C; no firmware or layout changes required. |
| R7FA2E1A72DFM#AA0 | Same electrical specs and temperature grade; differs only in package: 64-pin LQFP with 0.5 mm pitch (PLQP0064KB-C) vs. 0.8 mm pitch (PLQP0064GA-A). | Suitable for higher-density PCB layouts where finer-pitch routing is preferred, but requires updated footprint and stencil. | Select for space-constrained designs accepting tighter assembly tolerances; verify solder paste volume and reflow profile. |
Compared with R7FA2E1A72DFK#AA0, the R7FA2E1A92DFK#AA0 extends thermal reliability without altering firmware or layout, while R7FA2E1A72DFM#AA0 offers identical functionality in a smaller footprint - making both viable alternatives depending on thermal or board-space constraints.
Availability
R7FA2E1A72DFK#AA0 is available at Aetrix Electronics and suitable for smart home thermostats, industrial sensor nodes, medical wearable patches, and POS terminal keypads requiring stable component supply, long-term lifecycle assurance, and industrial-grade qualification.
Supply support for R7FA2E1A72DFK#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 specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.
The RA2E1 Group is designed for cost-sensitive, ultra-low-power embedded applications demanding robust security, capacitive touch, and functional safety - targeting battery-operated HMI, sensor edge nodes, and industrial controls.
FAQ
What is the maximum operating frequency and core architecture of the R7FA2E1A72DFK#AA0?
The R7FA2E1A72DFK#AA0 features an Arm Cortex-M23 core compliant with the Armv8-M architecture and operates at a maximum frequency of 48 MHz. This enables efficient real-time processing while maintaining low power consumption. The core includes an 8-region Memory Protection Unit (MPU), DWT, FPB, and CoreSight MTB-M23 for debugging - all confirmed in the R01DS0386EJ0170 datasheet Rev.1.70. The R7FA2E1A72DFK#AA0 leverages these features for deterministic task scheduling in resource-constrained edge devices.
Does the R7FA2E1A72DFK#AA0 support capacitive touch sensing, and how many channels are available?
Yes, the R7FA2E1A72DFK#AA0 integrates the Capacitive Sensing Unit (CTSU2) supporting up to 30 touch channels. These are mapped to dedicated pins including TS00–TS34-CFC across multiple port groups (P0–P9). The CTSU2 includes hardware-based noise cancellation and automatic calibration, enabling reliable touch detection through glass or plastic overlays. This capability is fully documented for the R7FA2E1A72DFK#AA0 in Table 1.13 and Figure 1.3 of the RA2E1 datasheet R01DS0386EJ0170.
What are the memory resources available on the R7FA2E1A72DFK#AA0?
The R7FA2E1A72DFK#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 error checking. The code flash supports secure boot and read-out protection; the data flash enables reliable parameter storage across power cycles. All memory specifications are explicitly listed for the R7FA2E1A72DFK#AA0 in Tables 1.2 and 1.12 of the official Renesas datasheet R01DS0386EJ0170.
Which communication interfaces does the R7FA2E1A72DFK#AA0 include, and are they configurable?
The R7FA2E1A72DFK#AA0 includes SCI ×4 (supporting UART, simple I²C, simple SPI, and Smart Card modes), one dedicated I²C bus interface (IIC), and one SPI interface. Each SCI channel is software-configurable for protocol mode and baud rate; IIC and SPI operate independently with full-duplex capability. Pin multiplexing is managed via the ICU and ELC modules, allowing dynamic routing - details confirmed in Tables 1.7 and 1.14 of the R01DS0386EJ0170 datasheet for the R7FA2E1A72DFK#AA0.
What safety and security features are implemented in hardware on the R7FA2E1A72DFK#AA0?
The R7FA2E1A72DFK#AA0 includes SRAM parity checking, flash area protection, ADC self-diagnosis, Clock Frequency Accuracy Measurement Circuit (CAC), Cyclic Redundancy Check (CRC) calculator, Data Operation Circuit (DOC), AES128/256 encryption engine, and True Random Number Generator (TRNG). These are all hardware-accelerated, non-software-dependent features documented in Sections 1.3 and 1.4 of the R01DS0386EJ0170 datasheet. They collectively support functional safety (IEC 61508) and data confidentiality requirements for the R7FA2E1A72DFK#AA0.
R7FA2E1A72DFK#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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7FA2E1A72DFK#AA0 FAQ
1.How can I place an order for R7FA2E1A72DFK#AA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA2E1A72DFK#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 R7FA2E1A72DFK#AA0 reliable?
The price and inventory of R7FA2E1A72DFK#AA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA2E1A72DFK#AA0 is usually 5 days.
3.What payment methods are accepted for R7FA2E1A72DFK#AA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FA2E1A72DFK#AA0 transactions.
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4.How is shipping managed for R7FA2E1A72DFK#AA0?
R7FA2E1A72DFK#AA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FA2E1A72DFK#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 R7FA2E1A72DFK#AA0?
For technical support, including R7FA2E1A72DFK#AA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA2E1A72DFK#AA0 requirements.
6.How does Aetrix verify that R7FA2E1A72DFK#AA0 is sourced from the original manufacturer or authorized distributors?
All R7FA2E1A72DFK#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 R7FA2E1A72DFK#AA0 meets industry standards.
7.What is the process for return or replacement of R7FA2E1A72DFK#AA0?
All R7FA2E1A72DFK#AA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA2E1A72DFK#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 R7FA2E1A72DFK#AA0 part is unused and in its original packaging.
Return procedure for R7FA2E1A72DFK#AA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R7FA2E1A72DFK#AA0 Tags
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