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Renesas R7FA2E1A53CNH#AA0
- Part No.:
- R7FA2E1A53CNH#AA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 32-WFQFN Exposed Pad
- Datasheet:
-
R7FA2E1A53CNH#AA0.pdf
- Description:
- IC MCU 32BIT 32KB FLASH 32HWQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,740
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Product details
Overview
R7FA2E1A53CNH#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, 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 R7FA2E1A53CNH#AA0 datasheet, R7FA2E1A53CNH#AA0 pinout, R7FA2E1A53CNH#AA0 application, or R7FA2E1A53CNH#AA0 equivalent, this page delivers verified specifications, package mapping to 32-pin HWQFN (8 mm × 8 mm, 0.4 mm pitch), I/O count (23 pins), CTSU2 channel count (11), and confirmed alternative parts for design-in evaluation.
Technical Context
The R7FA2E1A53CNH#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 LOCO, coordinated via Clock Frequency Accuracy Measurement Circuit (CAC) for oscillator validation.
Peripheral integration centers on event-driven operation: Event Link Controller (ELC) enables direct hardware-to-hardware triggering between modules (e.g., ADC conversion start → DTC transfer), while Data Transfer Controller (DTC) handles memory moves without CPU intervention-critical for deterministic low-power operation in sensor acquisition and capacitive touch scanning.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M23, 48 MHz max - enables real-time signal processing in sub-100 µA/MHz active mode. |
| Memory | 32-KB code flash + 4-KB data flash + 16-KB SRAM - supports firmware updates, parameter storage, and buffer-intensive CTSU2/touch algorithms. |
| Analog Peripherals | 12-bit ADC12 (10 input channels), 2× ACMPLP, TSN - provides precision sensor interfacing and thermal monitoring for closed-loop systems. |
| Capacitive Sensing | CTSU2 with 11 touch pins and 11 CFC channels - delivers robust proximity/touch detection through overlay materials with minimal firmware overhead. |
| Security & Safety | AES128/256, TRNG, CRC calculator, DOC, IWDT, SRAM parity - meets IEC 61508 SIL2 and IEC 62443-3-3 requirements for industrial edge devices. |
| Package & I/O | 32-pin HWQFN (8 mm × 8 mm, 0.4 mm pitch), 23 GPIO, 3× 5-V tolerant pins - enables compact PCB layout with mixed-voltage peripheral interfacing. |
| Operating Range | -40°C to +105°C, 1.6–5.5 V supply - qualified for extended-temperature industrial environments and wide-input power designs. |
Pinout & Package
Package: 32-pin HWQFN (8 mm × 8 mm, 0.4 mm pitch), exposed thermal pad recommended to be connected to VSS.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dual VCC pins (pins 1, 32) and dual VSS pins (pins 16, 17) enable low-noise analog/digital separation; VCL (pin 31) stabilizes internal LDO for analog circuits. |
| P000–P015, P100–P113, etc. | General-purpose I/O | 23 configurable GPIOs (e.g., P000, P001, P100–P109, P112–P113, P200–P201, P204–P208, P300–P304, P400–P403, P407–P411, P500–P502, P913–P915) support pull-up, open-drain, and 5-V tolerance on select pins. |
| XCIN / XCOUT | Sub-clock oscillator interface | Connects external 32.768 kHz crystal for RTC accuracy and low-power wake-up timing independent of main clock domain. |
| SWDIO / SWCLK | Debug interface | Two-pin Serial Wire Debug (SWD) enables in-circuit programming and real-time trace without dedicated JTAG pins. |
| AN000–AN009 | ADC input channels | 10 dedicated analog inputs (e.g., AN000–AN009) mapped to GPIOs; AVCC0/AVSS0 (pins 13/14) and VREFH0/VREFL0 (pins 12/11) define ADC reference domain. |
| TS00, TS02–TS07, TS08–TS16, etc. | CTSU2 touch sensing | 11 dedicated CTSU2 pins (e.g., TS00, TS02–TS07, TS08–TS16) support mutual/self-capacitance measurement; TSCAP (pin 29) supplies secondary charge pump voltage. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 120 µA/MHz active current and 0.25 µA deep standby mode with RTC + 32-kHz oscillator enabled - extends battery life in coin-cell-powered IoT endpoints. |
| Hardware-accelerated CTSU2 | Dedicated CTSU2 engine with 11 touch channels and built-in noise rejection eliminates need for external RC networks or software filtering. |
| Event-driven peripheral linking | Event Link Controller (ELC) allows autonomous ADC trigger → DTC transfer → memory store without CPU wake-up - reduces active time by >60% in sensor polling loops. |
| Functional safety support | Integrated IWDT, SRAM parity, CAC, and register write protection meet core diagnostics coverage requirements for IEC 61508 SIL2-certified firmware. |
| Secure firmware execution | AES128/256 encryption engine and True Random Number Generator (TRNG) enable secure boot, OTA update authentication, and key derivation in resource-constrained edge nodes. |
Applications
| Smart Home Touch Panel | Industrial Sensor Node |
|---|---|
Use Scenario: Wall-mounted thermostat with glass-front capacitive buttons and ambient temperature/humidity sensing. IC Role / Device Role / Timing Role: Main controller executing touch scan, sensor readout, display update, and wireless communication scheduling. Use Value: CTSU2 enables reliable touch detection through 3-mm glass; 12-bit ADC and TSN provide ±0.5°C thermal accuracy; 48-MHz core processes BLE stack and UI logic concurrently. |
Use Scenario: Battery-powered vibration/temperature monitor mounted on motor housing in factory automation. IC Role / Device Role / Timing Role: Edge data aggregator sampling accelerometer and thermistor every 5 seconds, compressing data, and waking radio only on threshold breach. Use Value: Sub-µA deep-sleep current extends 10-year battery life; ELC-linked AGT→ADC→DTC chain minimizes wake time; -40°C to +105°C rating ensures operation near hot machinery. |
| Medical Wearable Device | Energy Meter Interface Module |
Use Scenario: Disposable glucose monitor with single-use touch activation and Bluetooth LE data transmission. IC Role / Device Role / Timing Role: System-on-chip managing touch-initiated self-test, electrochemical sensor biasing, ADC conversion, and secure BLE advertising. Use Value: AES256 encrypts patient data before transmission; TRNG seeds session keys; 16-KB SRAM buffers raw sensor waveforms for post-processing prior to upload. |
Use Scenario: DIN-rail mounted meter add-on module reading pulse outputs from mechanical meters and reporting via NB-IoT. IC Role / Device Role / Timing Role: Isolated pulse counter interfacing to optocoupled inputs, timestamping events with RTC, and managing modem power sequencing. Use Value: 5-V tolerant GPIOs directly accept 5-V meter pulses without level shifters; IWDT and CRC ensure reliable long-term unattended operation; 32-KB flash stores modem firmware and configuration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FA2E1A52DFJ#AA0 | Same 32-pin HWQFN package, identical peripherals, but rated for -40°C to +85°C industrial grade only. | Lacks extended temperature qualification; unsuitable for under-hood or high-ambient industrial deployments. | Select when cost sensitivity outweighs extended temperature requirement and ambient stays below 85°C. |
| R7FA2E1A53CFJ#AA0 | Same 32-pin LQFP (7 mm × 7 mm, 0.8 mm pitch) package, identical specs, but larger footprint and different thermal pad structure. | Requires PCB redesign due to incompatible land pattern and solder paste stencil; lower thermal performance than HWQFN. | Choose only if legacy LQFP assembly infrastructure exists and thermal constraints permit. |
Compared with R7FA2E1A52DFJ#AA0 and R7FA2E1A53CFJ#AA0, the R7FA2E1A53CNH#AA0 uniquely combines extended temperature range (-40°C to +105°C), compact 32-pin HWQFN packaging, and full CTSU2 capability-making it the optimal choice for space-constrained, thermally demanding touch-enabled edge devices.
Availability
R7FA2E1A53CNH#AA0 is available at Aetrix Electronics and suitable for smart home controllers, industrial sensor nodes, medical wearables, and energy meter interfaces requiring stable component supply across automotive-grade temperature ranges and long product lifecycles.
Supply support for R7FA2E1A53CNH#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, with over 40 years of MCU innovation.
The RA2E1 group, including R7FA2E1A53CNH#AA0, was designed specifically for ultra-low-power, cost-sensitive applications requiring capacitive touch, functional safety, and secure connectivity-targeting next-generation human-machine interfaces and intelligent edge sensors.
FAQ
What is the maximum operating frequency and core architecture of the R7FA2E1A53CNH#AA0?
The R7FA2E1A53CNH#AA0 features an Arm Cortex-M23 core compliant with the Armv8-M architecture and operates at a maximum frequency of 48 MHz. This core includes a Memory Protection Unit (MPU) with 8 configurable regions, supporting secure firmware partitioning and deterministic real-time execution essential for industrial and medical applications.
How many capacitive touch channels does the R7FA2E1A53CNH#AA0 support, and what is its CTSU2 configuration?
The R7FA2E1A53CNH#AA0 integrates the Capacitive Sensing Unit version 2 (CTSU2) supporting 11 dedicated touch pins (TS00, TS02–TS07, TS08–TS16) and 11 CFC channels. It enables both self- and mutual-capacitance measurement with built-in noise cancellation, allowing reliable touch detection through glass, plastic, or painted surfaces up to 3 mm thick.
What are the memory resources available on the R7FA2E1A53CNH#AA0?
The R7FA2E1A53CNH#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 on-chip SRAM with parity protection. These resources support firmware updates, non-volatile parameter storage, and real-time buffering for sensor fusion or touch algorithm execution.
Which package type and pin count does the R7FA2E1A53CNH#AA0 use, and what are its thermal characteristics?
The R7FA2E1A53CNH#AA0 uses a 32-pin HWQFN package measuring 8 mm × 8 mm with 0.4 mm pitch and an exposed thermal pad. The pad is recommended to be connected to VSS for optimal thermal dissipation. This package supports operation from -40°C to +105°C and delivers superior thermal performance compared to equivalent LQFP variants.
Does the R7FA2E1A53CNH#AA0 include hardware security features, and which standards do they support?
Yes, the R7FA2E1A53CNH#AA0 includes AES128/256 encryption, a True Random Number Generator (TRNG), Cyclic Redundancy Check (CRC) calculator, Data Operation Circuit (DOC), Independent Watchdog Timer (IWDT), and SRAM parity checking. These features collectively support compliance with IEC 61508 SIL2 and IEC 62443-3-3 for functional safety and cybersecurity in industrial edge devices.
R7FA2E1A53CNH#AA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 32-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:
- 23
- 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 10x12b SAR
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7FA2E1A53CNH#AA0 FAQ
1.How can I place an order for R7FA2E1A53CNH#AA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA2E1A53CNH#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 R7FA2E1A53CNH#AA0 reliable?
The price and inventory of R7FA2E1A53CNH#AA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA2E1A53CNH#AA0 is usually 5 days.
3.What payment methods are accepted for R7FA2E1A53CNH#AA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FA2E1A53CNH#AA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FA2E1A53CNH#AA0?
R7FA2E1A53CNH#AA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FA2E1A53CNH#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 R7FA2E1A53CNH#AA0?
For technical support, including R7FA2E1A53CNH#AA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA2E1A53CNH#AA0 requirements.
6.How does Aetrix verify that R7FA2E1A53CNH#AA0 is sourced from the original manufacturer or authorized distributors?
All R7FA2E1A53CNH#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 R7FA2E1A53CNH#AA0 meets industry standards.
7.What is the process for return or replacement of R7FA2E1A53CNH#AA0?
All R7FA2E1A53CNH#AA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA2E1A53CNH#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 R7FA2E1A53CNH#AA0 part is unused and in its original packaging.
Return procedure for R7FA2E1A53CNH#AA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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