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Renesas R7FA2E1A93CNH#AA0
- Part No.:
- R7FA2E1A93CNH#AA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 32-WFQFN Exposed Pad
- Datasheet:
-
R7FA2E1A93CNH#AA0.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 32HWQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,390
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Product details
Overview
R7FA2E1A93CNH#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 R7FA2E1A93CNH#AA0 datasheet, R7FA2E1A93CNH#AA0 pinout, R7FA2E1A93CNH#AA0 application, or R7FA2E1A93CNH#AA0 equivalent, this MCU delivers verified CTSU2-based touch sensing, dual watchdog timers (WDT/IWDT), SRAM parity, and hardware CRC for IEC 61508-compliant diagnostics in compact 32-pin HWQFN packaging.
Technical Context
The R7FA2E1A93CNH#AA0 implements Armv8-M architecture with Memory Protection Unit (8 regions) and CoreSight™ MTB-M23 trace, enabling secure, deterministic real-time operation. Its clock system integrates HOCO (48 MHz), LOCO (32.768 kHz), and SOSC for RTC, while CAC validates oscillator accuracy against reference clocks.
System-level features include Event Link Controller (ELC) for CPU-free peripheral chaining, Data Transfer Controller (DTC) for autonomous memory moves, and Port Output Enable for GPT (POEG) to safely disable PWM outputs during fault conditions-critical for motor control and fail-safe embedded systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M23 @ 48 MHz max; supports TrustZone for secure firmware partitioning and MPU-enforced memory isolation. |
| Memory | 128-KB code flash (100k erase cycles), 4-KB data flash, 16-KB SRAM with parity; enables robust firmware updates and runtime data integrity checking. |
| Analog Peripherals | 12-bit ADC12 (13 channels), 2× ACMPLP, TSN, and CTSU2 (11 touch channels); supports simultaneous sensor acquisition and capacitive touch on shared pins. |
| Timers & Control | GPT32 ×1, GPT16 ×6, AGT ×2, RTC, WDT/IWDT; provides precise PWM generation (BLDC control), low-power timing, and independent fail-safe reset capability. |
| Security & Safety | AES128/256, TRNG, CRC calculator, DOC, SRAM parity, flash protection, LVD0–LVD2; meets IEC 61508 SIL2 diagnostic coverage requirements. |
| I/O & Packaging | 23 general-purpose I/O pins (5-V tolerant on 1 pin), N-ch open-drain on 15 pins, 32-pin HWQFN (5 mm × 5 mm, 0.5 mm pitch); optimized for space-constrained PCB layouts. |
Pinout & Package
Package: 32-pin HWQFN (5 mm × 5 mm, 0.5 mm pitch), exposed thermal pad recommended to be connected to VSS or left floating per Renesas design guidelines.
| 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 and stable core voltage under dynamic load. |
| P000–P015, P100–P113, etc. | General-purpose I/O | 23 configurable GPIOs with pull-up, open-drain, and 5-V tolerance on P200; supports key interrupt (KINT), event input, and SWD debug (SWDIO/SWCLK on P108/P300). |
| XTAL / EXTAL / XCIN / XCOUT | Clock inputs/outputs | Supports external crystal (1–20 MHz), sub-clock (32.768 kHz), and internal oscillators; essential for RTC accuracy and clock redundancy. |
| AVCC0 / AVSS0 / VREFH0 / VREFL0 | Analog power & reference | Dedicated analog supply and reference pins isolate noise-sensitive ADC/CTSU circuits from digital switching transients. |
| TS00–TS18, TS21–TS34-CFC | Capacitive touch inputs | 11 CTSU2 touch channels mapped across multiple pins; enables slider, wheel, and multi-button HMI without external components. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | Active current as low as 62 µA/MHz; supports deep-sleep modes with RTC wake-up and AGT-triggered events-extends battery life in coin-cell applications. |
| Hardware-accelerated security | AES128/256 engine + TRNG enables secure boot, encrypted firmware storage, and authenticated communication without software overhead. |
| Integrated safety mechanisms | SRAM parity error detection, flash area protection, ADC self-diagnosis, and IWDT with dedicated 15-kHz oscillator ensure predictable fail-safe behavior per IEC 61508. |
| Flexible timer subsystem | GPT32 + GPT16 ×6 support complementary PWM outputs for 3-phase BLDC control; POEG allows safe gate driver disable during faults. |
| Event-driven autonomy | ELC links peripherals (e.g., ADC end-of-conversion → DTC transfer → CRC calculation) without CPU intervention-reducing latency and active power. |
Applications
| Smart Home Touch Panel | Industrial Sensor Node |
|---|---|
Use Scenario: Wall-mounted thermostat with capacitive buttons and ambient temperature/humidity sensing. IC Role / Device Role / Timing Role: Main controller executing touch firmware, ADC sampling, and BLE/Wi-Fi co-processor interface via SCI/I2C. Use Value: CTSU2 enables reliable touch detection through glass overlay; 16-KB SRAM buffers sensor logs; low-power AGT wakes MCU only on threshold breach. | Use Scenario: Wireless vibration/temperature monitor on rotating machinery with predictive maintenance output. IC Role / Device Role / Timing Role: Edge-processing node performing FFT preprocessing, anomaly detection, and secure OTA update handling. Use Value: Hardware CRC and DOC verify sensor data integrity; AES encrypts telemetry before transmission; IWDT ensures recovery from firmware hangs. |
| Medical Wearable Device | Energy-Efficient PLC I/O Module |
Use Scenario: Disposable glucose monitor with single-use battery and disposable electrode interface. IC Role / Device Role / Timing Role: System-on-chip managing electrochemical ADC, touch UI, and secure data export via USB CDC. Use Value: 12-bit ADC12 achieves <1% THD for analog front-end; TRNG seeds session keys for HIPAA-compliant data export. | Use Scenario: DIN-rail mounted remote I/O module with digital input conditioning and isolated RS-485 communication. IC Role / Device Role / Timing Role: Local intelligence layer performing debounce, edge detection, and protocol translation (Modbus RTU ↔ CAN FD). Use Value: KINT detects fast input transitions; SCI ×4 supports dual Modbus ports; LVD0/LVD1 provide brown-out detection across wide 1.6–5.5 V supply range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FA2E1A93CFJ#AA0 | Same core, memory, and peripherals but in 32-pin LQFP (7 mm × 7 mm, 0.8 mm pitch); no HWQFN thermal pad. | LQFP simplifies hand-soldering and prototyping; lower thermal performance limits sustained 48-MHz operation in high-ambient environments. | Select R7FA2E1A93CFJ#AA0 for lab validation or low-volume production where thermal management is less critical. |
| R7FA2E1A73CNH#AA0 | Identical package and pinout but with 64-KB code flash and same 16-KB SRAM; otherwise identical peripheral set and safety features. | Suitable for cost-sensitive designs where firmware size <64 KB eliminates need for larger flash; retains full CTSU2, ADC, and security stack. | Select R7FA2E1A73CNH#AA0 when application firmware fits within 64 KB and BOM cost reduction is prioritized over future scalability. |
Compared with R7FA2E1A93CFJ#AA0, the R7FA2E1A93CNH#AA0 offers superior thermal dissipation in space-constrained enclosures; versus R7FA2E1A73CNH#AA0, it provides 64 KB additional flash for field-upgradable features or enhanced cryptographic key storage.
Availability
R7FA2E1A93CNH#AA0 is available at Aetrix Electronics and suitable for smart home HMI, industrial sensor nodes, medical wearables, and energy-efficient PLC I/O modules requiring stable component supply and long-term manufacturability.
Supply support for R7FA2E1A93CNH#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 is designed for ultra-low-power, cost-sensitive embedded applications demanding integrated touch, security, and functional safety-targeting battery-operated and space-constrained edge devices.
FAQ
What is the maximum operating frequency and core architecture of the R7FA2E1A93CNH#AA0?
The R7FA2E1A93CNH#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), DWT, FPB, and CoreSight™ MTB-M23 for debugging and trace. This configuration enables deterministic real-time execution and secure firmware partitioning in resource-constrained environments.
Does the R7FA2E1A93CNH#AA0 support capacitive touch sensing, and how many channels are available?
Yes, the R7FA2E1A93CNH#AA0 integrates the Capacitive Sensing Unit (CTSU2) supporting up to 11 touch channels. These are mapped across pins TS00–TS18 and TS21–TS34-CFC, enabling sliders, wheels, and multi-button interfaces without external components. The CTSU2 operates independently of the CPU, reducing power consumption during touch monitoring.
What safety and security features are implemented in the R7FA2E1A93CNH#AA0?
The R7FA2E1A93CNH#AA0 includes SRAM parity error detection, flash area protection, ADC self-diagnosis, Clock Frequency Accuracy Measurement Circuit (CAC), hardware CRC calculator, Data Operation Circuit (DOC), AES128/256 encryption engine, and True Random Number Generator (TRNG). These features collectively support IEC 61508 SIL2 compliance and secure boot workflows.
What are the supported clock sources and oscillator options for the R7FA2E1A93CNH#AA0?
The R7FA2E1A93CNH#AA0 supports multiple clock sources: main crystal oscillator (1–20 MHz), sub-clock oscillator (32.768 kHz), high-speed on-chip oscillator (HOCO: 24/32/48/64 MHz), middle-speed (MOCO: 8 MHz), low-speed (LOCO: 32.768 kHz), and IWDT-dedicated oscillator (15 kHz). Clock trimming is available for HOCO/MOCO/LOCO to maintain accuracy across voltage and temperature.
What is the I/O count and package type of the R7FA2E1A93CNH#AA0?
The R7FA2E1A93CNH#AA0 is housed in a 32-pin HWQFN package (5 mm × 5 mm, 0.5 mm pitch) with 23 general-purpose I/O pins, 3 input-only pins, 15 N-ch open-drain outputs, and 1 pin with 5-V tolerance. The exposed thermal pad improves thermal performance and must be connected to VSS or left floating per Renesas layout guidelines.
R7FA2E1A93CNH#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:
- 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 10x12b SAR
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7FA2E1A93CNH#AA0 FAQ
1.How can I place an order for R7FA2E1A93CNH#AA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA2E1A93CNH#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 R7FA2E1A93CNH#AA0 reliable?
The price and inventory of R7FA2E1A93CNH#AA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA2E1A93CNH#AA0 is usually 5 days.
3.What payment methods are accepted for R7FA2E1A93CNH#AA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FA2E1A93CNH#AA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FA2E1A93CNH#AA0?
R7FA2E1A93CNH#AA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FA2E1A93CNH#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 R7FA2E1A93CNH#AA0?
For technical support, including R7FA2E1A93CNH#AA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA2E1A93CNH#AA0 requirements.
6.How does Aetrix verify that R7FA2E1A93CNH#AA0 is sourced from the original manufacturer or authorized distributors?
All R7FA2E1A93CNH#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 R7FA2E1A93CNH#AA0 meets industry standards.
7.What is the process for return or replacement of R7FA2E1A93CNH#AA0?
All R7FA2E1A93CNH#AA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA2E1A93CNH#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 R7FA2E1A93CNH#AA0 part is unused and in its original packaging.
Return procedure for R7FA2E1A93CNH#AA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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