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Renesas R7FA2E1A73CDA#HC0
- Part No.:
- R7FA2E1A73CDA#HC0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 25-UFBGA, WLCSP
- Datasheet:
-
R7FA2E1A73CDA#HC0.pdf
- Description:
- MCU RA2E1 ARM CM23 48MHZ 64K/16K
- Quantity:
- Payment:
- Shipping:
Inventory:2,625
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Product details
Overview
R7FA2E1A73CDA#HC0 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 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 R7FA2E1A73CDA#HC0 datasheet, R7FA2E1A73CDA#HC0 pinout, R7FA2E1A73CDA#HC0 application, or R7FA2E1A73CDA#HC0 equivalent, key selection criteria include its 25-pin WLCSP package, -40°C to +85°C industrial temperature grade, CTSU2-based touch sensing capability, 1.6–5.5 V wide supply range, and support for independent watchdog (IWDT) and CRC-based data integrity verification.
Technical Context
The R7FA2E1A73CDA#HC0 implements the Armv8-M architecture with Memory Protection Unit (MPU) and CoreSight™ debug infrastructure, enabling secure, scalable embedded firmware development. Its clock system integrates HOCO (48 MHz), LOCO (32.768 kHz), and sub-clock oscillator support - though the WLCSP variant omits SOSC per Table 1.13.
It delivers deterministic real-time control via six 16-bit GPT timers (including BLDC motor PWM outputs), two AGT low-power timers, and Event Link Controller (ELC) for CPU-free peripheral coordination. Safety features include SRAM parity, flash area protection, ADC self-diagnosis, and Clock Frequency Accuracy Measurement Circuit (CAC).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M23 @ 48 MHz max; supports TrustZone for secure partitioning of firmware. |
| Memory | 64-KB code flash (100k P/E cycles), 4-KB data flash, 16-KB SRAM with parity - enables robust firmware updates and runtime data logging. |
| Analog Peripherals | 12-bit ADC12 (8 input channels), 2× ACMPLP comparators, TSN temperature sensor - suitable for precision sensor signal acquisition. |
| Capacitive Sensing | CTSU2 with 10 touch pins (CFC:9); supports proximity and button detection without external components. |
| Security & Safety | AES128/256 encryption, TRNG, CRC calculator, DOC, IWDT, LVD0/1/2 - meets IEC 61508 SIL2 and ISO 26262 ASIL-B readiness requirements. |
| Package & Environment | 25-pin WLCSP (2.14 mm × 2.27 mm, 0.4 mm pitch), -40°C to +85°C operating range - optimized for space-constrained portable and wearable designs. |
| I/O Capability | 20 general-purpose I/O pins, 14 N-ch open-drain outputs, 3× 5-V tolerant inputs - simplifies level-shifting in mixed-voltage systems. |
Pinout & Package
Package: 25-pin Wafer-Level Chip-Scale Package (WLCSP), 2.14 mm × 2.27 mm, 0.4 mm pitch, Pb-free Sn termination. Exposed die pad recommended to be connected to VSS.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Power supply input | Main digital supply (1.6–5.5 V); requires local 0.1-µF decoupling capacitor. |
| VSS | Ground reference | Digital ground; connects to exposed die pad for thermal and EMI performance. |
| AVCC0 / AVSS0 | Analog power/ground | Separate analog domain supply and return - isolates noise-sensitive ADC operation. |
| P000–P015, P100–P113, etc. | General-purpose I/O | 20 configurable GPIOs with pull-up, open-drain, and 5-V tolerance on select pins. |
| SWDIO / SWCLK | Debug interface | 2-pin Serial Wire Debug for programming and real-time trace without dedicated JTAG pins. |
| XTAL / EXTAL | External crystal interface | Supports 1–20 MHz crystal for high-accuracy timing; not used if internal HOCO suffices. |
| XCIN / XCOUT | Sub-clock oscillator | 32.768 kHz crystal connection for RTC; omitted on WLCSP per Table 1.13 function comparison. |
| RES | Reset input | Active-low asynchronous reset; triggers full system initialization and register reset. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | Typical active current < 120 µA/MHz; 0.25 µA in deep software standby - extends battery life in coin-cell applications. |
| Integrated capacitive touch | CTSU2 supports up to 10 electrodes with automatic drift compensation - eliminates need for external touch controller IC. |
| Hardware-accelerated security | Dedicated AES128/256 engine and TRNG enable secure boot and encrypted communication without CPU overhead. |
| Functional safety support | Built-in CAC, SRAM parity, IWDT, and ADC self-test reduce certification effort for IEC 61508 and ISO 13849 systems. |
| Flexible clock architecture | HOCO (48 MHz), MOCO (8 MHz), LOCO (32.768 kHz), and IWDT-dedicated 15 kHz oscillator - enables dynamic power/performance scaling. |
Applications
| Smart Thermostat Interface | Industrial Sensor Node |
|---|---|
|
Use Scenario: Compact wall-mounted HVAC controller with capacitive touch buttons and ambient temperature/humidity sensing. IC Role / Device Role / Timing Role: Main system controller executing UI logic, ADC sampling, CTSU2 touch processing, and wireless module coordination. Use Value: 25-pin WLCSP enables minimal PCB footprint; CTSU2 eliminates mechanical switches; 1.6–5.5 V operation supports direct Li-ion or 3.3 V rail use. |
Use Scenario: Battery-powered vibration/temperature node deployed in factory machinery for predictive maintenance. IC Role / Device Role / Timing Role: Data acquisition MCU triggering ADC and ACMPLP on event, compressing data via DOC, and initiating secure BLE transmission. Use Value: IWDT and CRC ensure reliable long-term unattended operation; ultra-low sleep current (< 0.25 µA) enables multi-year battery life. |
| Portable Medical Monitor | Home Appliance Control Panel |
|
Use Scenario: Wearable pulse oximeter with optical sensor interface, touch feedback, and clinical-grade data logging. IC Role / Device Role / Timing Role: Real-time signal processor managing ADC oversampling, TSN calibration, AES-encrypted SD card writes, and low-latency touch response. Use Value: 12-bit ADC with internal reference and TSN enables accurate physiological measurement; TRNG supports HIPAA-compliant data encryption. |
Use Scenario: Touch-enabled microwave oven control panel with LED dimming, buzzer feedback, and safety interlock monitoring. IC Role / Device Role / Timing Role: HMI coordinator handling CTSU2 button detection, GPT-driven LED PWM, AGT-based timer functions, and door switch supervision. Use Value: Integrated CTSU2 and 5-V tolerant I/O simplify front-panel design; LVD detection prevents erratic behavior during brown-out conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FA2E1A72DDA#HC0 | Same RA2E1 core, 64-KB flash, but rated for -40°C to +85°C industrial grade (same as R7FA2E1A73CDA#HC0); differs only in quality grade suffix (D vs C) and packaging code (DDA vs CDA). | Identical functionality and pinout; D-grade parts undergo same screening as C-grade but may have different traceability or lot documentation. | Select R7FA2E1A72DDA#HC0 if sourcing requires Renesas D-grade compliance documentation or specific distributor inventory alignment. |
| R7FA2E1A53CDA#HC0 | RA2E1 family member with 32-KB code flash, same 25-pin WLCSP package, identical CTSU2, ADC, and security features. | Reduced memory limits firmware complexity; suitable for simpler HMI or sensor edge nodes without OTA update or large protocol stacks. | Choose R7FA2E1A53CDA#HC0 when application firmware fits within 32 KB and cost optimization is prioritized over future scalability. |
Compared with R7FA2E1A73CDA#HC0, R7FA2E1A72DDA#HC0 offers identical electrical and functional behavior with minor quality documentation variance, while R7FA2E1A53CDA#HC0 trades flash capacity for lower unit cost - both retain the same WLCSP footprint and CTSU2-based touch capability.
Availability
R7FA2E1A73CDA#HC0 is available at Aetrix Electronics and suitable for smart home interfaces, portable medical devices, industrial sensor nodes, and battery-powered HMI applications requiring stable component supply across extended production lifecycles.
Supply support for R7FA2E1A73CDA#HC0 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, including R7FA2E1A73CDA#HC0, was designed for cost-sensitive, ultra-low-power embedded applications demanding integrated touch, security, and functional safety - especially where small form factor and long battery life are essential.
FAQ
What is the maximum operating frequency of the R7FA2E1A73CDA#HC0?
The R7FA2E1A73CDA#HC0 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. The MCU maintains full peripheral functionality at this rate, including real-time ADC sampling and CTSU2 touch scanning, making R7FA2E1A73CDA#HC0 suitable for responsive HMI and sensor fusion tasks.
Does the R7FA2E1A73CDA#HC0 support external crystal oscillators?
Yes, the R7FA2E1A73CDA#HC0 supports external crystals via XTAL/EXTAL pins for main clock (1–20 MHz) and XCIN/XCOUT pins for sub-clock (32.768 kHz). However, the 25-pin WLCSP package (CDA) does not implement the sub-clock oscillator per Table 1.13 - only the main crystal interface is functional on R7FA2E1A73CDA#HC0.
How many capacitive touch channels does the R7FA2E1A73CDA#HC0 support?
The R7FA2E1A73CDA#HC0 integrates the CTSU2 peripheral supporting up to 10 capacitive touch input pins (CFC:9) in its WLCSP configuration. These pins are mapped to dedicated TSxx signals and enable robust proximity/button detection with built-in noise cancellation - no external RC network or dedicated touch controller is required for R7FA2E1A73CDA#HC0-based designs.
What security features are implemented in hardware on the R7FA2E1A73CDA#HC0?
The R7FA2E1A73CDA#HC0 includes AES128/256 encryption/decryption engines, a True Random Number Generator (TRNG), Cyclic Redundancy Check (CRC) calculator, Data Operation Circuit (DOC), and memory protection units. These features operate independently of the CPU, enabling secure boot, encrypted communication, and tamper-resistant data storage without compromising real-time performance of R7FA2E1A73CDA#HC0 applications.
Is the R7FA2E1A73CDA#HC0 pin-compatible with other RA2E1 family members in the same package?
Yes, all RA2E1 devices in the 25-pin WLCSP package (e.g., R7FA2E1A53CDA#HC0, R7FA2E1A72DDA#HC0, R7FA2E1A93CDA#HC0) share identical pin assignments and electrical characteristics. This allows seamless migration between memory variants (32/64/128 KB flash) and temperature grades (C/D) without PCB redesign - a key advantage of the R7FA2E1A73CDA#HC0's family-aligned packaging strategy.
R7FA2E1A73CDA#HC0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 25-UFBGA, WLCSP
- Series:
- RA2E1
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- ARM® Cortex®-M23
- Core Size:
- 32-Bit
- Speed:
- 48MHz
- Connectivity:
- I2C, SmartCard, SPI, UART/USART
- Peripherals:
- AES, DMA, LVD, POR, PWM, Temp Sensor, TRNG, WDT
- Number of I/O:
- 20
- 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 8x12b SAR
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7FA2E1A73CDA#HC0 FAQ
1.How can I place an order for R7FA2E1A73CDA#HC0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA2E1A73CDA#HC0 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 R7FA2E1A73CDA#HC0 reliable?
The price and inventory of R7FA2E1A73CDA#HC0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA2E1A73CDA#HC0 is usually 5 days.
3.What payment methods are accepted for R7FA2E1A73CDA#HC0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FA2E1A73CDA#HC0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FA2E1A73CDA#HC0?
R7FA2E1A73CDA#HC0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FA2E1A73CDA#HC0 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 R7FA2E1A73CDA#HC0?
For technical support, including R7FA2E1A73CDA#HC0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA2E1A73CDA#HC0 requirements.
6.How does Aetrix verify that R7FA2E1A73CDA#HC0 is sourced from the original manufacturer or authorized distributors?
All R7FA2E1A73CDA#HC0 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 R7FA2E1A73CDA#HC0 meets industry standards.
7.What is the process for return or replacement of R7FA2E1A73CDA#HC0?
All R7FA2E1A73CDA#HC0 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA2E1A73CDA#HC0, 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 R7FA2E1A73CDA#HC0 part is unused and in its original packaging.
Return procedure for R7FA2E1A73CDA#HC0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R7FA2E1A73CDA#HC0 Tags
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