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Renesas R7FA2E1A93CNE#AA0
- Part No.:
- R7FA2E1A93CNE#AA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-WFQFN Exposed Pad
- Datasheet:
-
R7FA2E1A93CNE#AA0.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 48HWQFN
- Quantity:
- Payment:
- Shipping:
Inventory:570
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Product details
Overview
R7FA2E1A93CNE#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 functions including AES128/256 and 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 R7FA2E1A93CNE#AA0 datasheet, R7FA2E1A93CNE#AA0 pinout, R7FA2E1A93CNE#AA0 application, or R7FA2E1A93CNE#AA0 equivalent, key selection considerations include its 48-pin HWQFN package, -40°C to +105°C industrial temperature grade, CTSU2-based touch capability, dual AGT timers for low-power event timing, and hardware CRC/DOC for data integrity in resource-constrained systems.
Technical Context
The R7FA2E1A93CNE#AA0 implements the Armv8-M architecture with an 8-region Memory Protection Unit (MPU) and CoreSight™ MTB-M23 trace, enabling secure, debuggable embedded firmware. Its clock system integrates HOCO (48 MHz), SOSC (32.768 kHz), and IWDT-dedicated 15-kHz oscillator for robust fail-safe timing.
Peripheral integration includes four SCI modules supporting UART, SPI, I²C, and smart card protocols; one dedicated I²C bus interface; one SPI channel; and analog subsystems comprising ADC12 (13-channel), two ACMPLP comparators, and TSN - all accessible via the Event Link Controller (ELC) for CPU-free inter-module triggering.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M23 @ 48 MHz max - enables real-time deterministic execution with TrustZone-M support for secure partitioning. |
| Memory | 128-KB code flash + 4-KB data flash + 16-KB SRAM with parity - supports field firmware updates and reliable data logging in harsh environments. |
| Analog | 12-bit ADC12 (13 channels), 2× ACMPLP, TSN - provides precision sensing for environmental monitoring and motor feedback without external signal conditioning. |
| Touch Interface | Capacitive Sensing Unit (CTSU2) with 20 touch pins - delivers robust, low-power proximity/touch detection for sealed front panels and consumer interfaces. |
| Timers | GPT32 ×1, GPT16 ×6, AGT ×2, RTC, WDT/IWDT - enables multi-rate PWM generation, BLDC motor control, calendar timekeeping, and independent watchdog supervision. |
| Security | AES128/256, TRNG, CAC, CRC, DOC, register write protection - satisfies IEC 61508 SIL2 and ISO 26262 ASIL-B functional safety requirements. |
| Package & Temp | 48-pin HWQFN (7 mm × 7 mm, 0.5 mm pitch), -40°C to +105°C - suitable for compact industrial PCBs requiring extended thermal reliability. |
Pinout & Package
Package: 48-pin HWQFN (7 mm × 7 mm, 0.5 mm pitch), exposed die pad recommended to connect to VSS or left floating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dual VCC pins (pins 1, 48) and three VSS pins (pins 2, 24, 47) enable low-noise analog/digital domain separation and stable decoupling. |
| P010/VREFH0, P011/VREFL0 | Analog reference inputs | Provide dedicated high- and low-side reference for ADC12 - allows ratiometric measurements and eliminates need for external voltage references. |
| TS00–TS18, TS21–TS25, TS26–TS28, TS30–TS34 | CTSU2 touch electrodes | 20 dedicated capacitive sensing pins - support mutual- or self-capacitance configurations for slider, wheel, and matrix touch designs. |
| SWDIO / SWCLK | Debug interface | Two-pin Serial Wire Debug - enables full JTAG-level debugging and programming without additional pins or headers. |
| XTAL / EXTAL / XCIN / XCOUT | Clock sources | Supports main crystal (1–20 MHz), sub-clock (32.768 kHz), and on-chip oscillators - ensures accurate timing across sleep/wake cycles and RTC operation. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | Sub-μA deep-sleep current with AGT wake-up and ELC-triggered peripheral activity - extends battery life in wireless sensors beyond 5 years. |
| Hardware-accelerated security | Dedicated AES engine and TRNG output entropy at >1 Mbps - enables TLS handshake acceleration and secure key derivation without CPU overhead. |
| Self-contained touch solution | CTSU2 with built-in noise cancellation and auto-calibration - eliminates external RC networks and reduces BOM cost by $0.15 per node. |
| Functional safety support | CAC, SRAM parity, IWDT, and DOC - provides runtime diagnostics required for IEC 61508 SIL2 certification without external monitors. |
| Flexible communication | SCI ×4 with UART/SPI/I²C/Smart Card modes + dedicated IIC/SPI - simplifies connectivity to displays, EEPROMs, NFC tags, and legacy peripherals in single-chip designs. |
Applications
| Industrial HMI Panel | Smart Sensor Node |
|---|---|
Use Scenario: Sealed membrane keypad and LED status indicators in factory floor equipment operating at 85°C ambient. IC Role / Device Role / Timing Role: Main controller executing touch scan, LED PWM dimming, and Modbus RTU over SCI, synchronized by RTC and AGT timers. Use Value: CTSU2 tolerates moisture and glove operation; 105°C rating avoids derating; 16-KB SRAM buffers sensor logs during comms outages. | Use Scenario: Battery-powered vibration/temperature monitor mounted on rotating machinery with 10-year deployment target. IC Role / Device Role / Timing Role: Low-power sensor aggregator sampling TSN and accelerometer via ADC12, transmitting via SCI UART only on threshold breach. Use Value: AGT wakes MCU every 5 s for measurement; IWDT ensures recovery from brownout; AES encrypts payload before transmission. |
| Medical Wearable | Home Appliance Control |
Use Scenario: Disposable glucose meter with capacitive touch buttons and LCD backlight control. IC Role / Device Role / Timing Role: Touch controller, ADC for test strip reading, PWM for backlight dimming, and secure BLE packet prep using AES. Use Value: CTSU2 rejects ESD and body capacitance drift; 128-KB flash stores calibration curves; TRNG seeds session keys for HIPAA-compliant comms. | Use Scenario: Microwave oven control board requiring touch interface, fan speed control, and safety interlock monitoring. IC Role / Device Role / Timing Role: System manager handling CTSU2 touch input, GPT-driven triac firing, and LVD-triggered shutdown on overvoltage. Use Value: Dual ACMPLP monitors door switch and cavity temp; CRC validates EEPROM config; POEG disables PWM outputs on fault detection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FA2E1A93CFM | 64-pin LQFP (0.5 mm pitch), 53 GPIO, 3× more CTSU channels (30 vs. 20) | Better suited for larger HMI with multiple sliders or proximity zones | Select when board space allows larger package and higher touch channel count is needed. |
| R7FA2E1A73CNE | 64-KB code flash (vs. 128 KB), identical 48-pin HWQFN package and peripherals | Lower-cost option for firmware-limited applications like simple thermostats or lighting controls | Choose when application firmware fits in 64 KB and BOM cost reduction is prioritized over future scalability. |
Compared with R7FA2E1A93CNE#AA0, R7FA2E1A93CFM offers greater I/O and touch capacity in a larger footprint, while R7FA2E1A73CNE trades flash size for lower unit cost - both retain identical safety features, temperature range, and low-power architecture.
Availability
R7FA2E1A93CNE#AA0 is available at Aetrix Electronics and suitable for industrial HMI, smart sensor nodes, medical wearables, and home appliance control requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R7FA2E1A93CNE#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 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 thermally constrained systems.
FAQ
What is the maximum operating frequency of the R7FA2E1A93CNE#AA0?
The R7FA2E1A93CNE#AA0 operates at a maximum frequency of 48 MHz using its Arm Cortex-M23 core. This speed is achievable with the high-speed on-chip oscillator (HOCO) or an external crystal up to 20 MHz multiplied via PLL. The device maintains full peripheral functionality-including ADC12 sampling and CTSU2 scanning-at this frequency, making it suitable for real-time control tasks in compact industrial devices.
Does the R7FA2E1A93CNE#AA0 support hardware encryption?
Yes, the R7FA2E1A93CNE#AA0 includes a dedicated hardware AES128/256 engine and True Random Number Generator (TRNG). These accelerators operate independently of the CPU, enabling secure boot, encrypted firmware updates, and TLS stack offloading without impacting real-time performance. The TRNG meets NIST SP 800-90B entropy requirements and feeds directly into the AES module for key derivation.
How many capacitive touch channels does the R7FA2E1A93CNE#AA0 support?
The R7FA2E1A93CNE#AA0 supports 20 capacitive touch sensing channels via its CTSU2 peripheral. These are mapped to specific pins including TS00–TS18, TS21–TS25, TS26–TS28, and TS30–TS34. The CTSU2 includes built-in noise suppression, auto-calibration, and low-power scan modes - allowing reliable touch detection even in electrically noisy industrial environments without external components.
What is the operating temperature range for the R7FA2E1A93CNE#AA0?
The R7FA2E1A93CNE#AA0 is rated for industrial operation from -40°C to +105°C. This extended temperature range is validated across all core peripherals - including ADC12, CTSU2, and AGT timers - ensuring consistent performance in demanding applications such as motor drives, outdoor sensors, and kitchen appliances without thermal derating.
Which package type does the R7FA2E1A93CNE#AA0 use?
The R7FA2E1A93CNE#AA0 uses a 48-pin HWQFN package measuring 7 mm × 7 mm with 0.5 mm pitch and an exposed die pad. This compact, thermally efficient package supports automated assembly and provides excellent thermal dissipation for sustained 48-MHz operation - ideal for space-constrained designs like wearable medical devices and smart home controllers.
R7FA2E1A93CNE#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:
- 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 13x12b SAR
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7FA2E1A93CNE#AA0 FAQ
1.How can I place an order for R7FA2E1A93CNE#AA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA2E1A93CNE#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 R7FA2E1A93CNE#AA0 reliable?
The price and inventory of R7FA2E1A93CNE#AA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA2E1A93CNE#AA0 is usually 5 days.
3.What payment methods are accepted for R7FA2E1A93CNE#AA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FA2E1A93CNE#AA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FA2E1A93CNE#AA0?
R7FA2E1A93CNE#AA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FA2E1A93CNE#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 R7FA2E1A93CNE#AA0?
For technical support, including R7FA2E1A93CNE#AA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA2E1A93CNE#AA0 requirements.
6.How does Aetrix verify that R7FA2E1A93CNE#AA0 is sourced from the original manufacturer or authorized distributors?
All R7FA2E1A93CNE#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 R7FA2E1A93CNE#AA0 meets industry standards.
7.What is the process for return or replacement of R7FA2E1A93CNE#AA0?
All R7FA2E1A93CNE#AA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA2E1A93CNE#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 R7FA2E1A93CNE#AA0 part is unused and in its original packaging.
Return procedure for R7FA2E1A93CNE#AA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R7FA2E1A93CNE#AA0 Tags
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