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Renesas R7FA2E2A54CBY#HC1
- Part No.:
- R7FA2E2A54CBY#HC1
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 16-UFBGA, WLCSP
- Datasheet:
-
R7FA2E2A54CBY#HC1.pdf
- Description:
- IC MCU 32BIT 32KB FLASH 16WLCSP
- Quantity:
- Payment:
- Shipping:
Inventory:2,000
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Product details
Overview
R7FA2E2A54CBY#HC1 from Renesas is an ultra-low-power 32-bit Arm® Cortex®-M23 microcontroller operating at up to 48 MHz, featuring 32-KB code flash, 8-KB SRAM, 12-bit ADC and DAC, integrated CAN interface, and hardware security including AES-128/256 and TRNG - deployed in battery-powered industrial sensors and smart metering endpoints.
For engineers reviewing the R7FA2E2A54CBY#HC1 datasheet, R7FA2E2A54CBY#HC1 pinout, R7FA2E2A54CBY#HC1 application, or R7FA2E2A54CBY#HC1 equivalent, key selection criteria include its WLCSP-16 package with 11 GPIOs, -40°C to +125°C operation, 1.6–5.5 V supply range, and support for I3C, SPI, SCI, and safety-critical peripherals like IWDT and CAC.
Technical Context
The R7FA2E2A54CBY#HC1 implements the Armv8-M architecture with Memory Protection Unit (MPU) supporting eight regions, enabling secure partitioning of firmware and data. Its clock system integrates HOCO (up to 48 MHz), MOCO (8 MHz), LOCO (32.768 kHz), and IWDT-dedicated 15-kHz oscillator, all with trim capability for precision timing across temperature.
Peripheral integration includes one SCI supporting UART/IIC/SPI/Smart Card modes, one I3C bus interface compliant with MIPI I3C subsets, one SPI channel, six GPT16 timers (11 PWM outputs), two AGTW low-power timers, and safety features such as ECC in SRAM, flash area protection, ADC self-diagnosis, and CRC calculator with snoop function.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M23, 48 MHz max - enables real-time deterministic control with TrustZone-M isolation for secure firmware partitioning. |
| Memory | 32-KB code flash / 2-KB data flash / 8-KB SRAM with ECC - supports field firmware updates and robust data logging in harsh environments. |
| Analog Peripherals | 12-bit ADC (8 channels) + 12-bit DAC + on-die temperature sensor - provides high-resolution sensing and actuator control without external signal conditioning. |
| Communication | CAN module + I3C ×1 + SCI ×1 + SPI ×1 - delivers mixed-protocol connectivity for industrial networks, sensor fusion, and legacy interface bridging. |
| Power & Safety | 1.6–5.5 V operation, -40°C to +125°C rating, IWDT, CAC, LVD, register write protection - ensures reliable operation in extended-temperature industrial and automotive under-hood applications. |
| Package | WLCSP-16 (1.84 mm × 1.87 mm, 0.4 mm pitch) - enables ultra-compact PCB layout for space-constrained edge nodes and wearable IoT devices. |
Pinout & Package
Package: WLCSP-16 (SUBG0016LB-A), 1.84 mm × 1.87 mm, 0.4 mm pitch, exposed die pad recommended connected to VSS or left open.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P400 | CACREF input / AGTIO1 | Accepts external reference clock for Clock Frequency Accuracy Measurement; also serves as low-power timer event input. |
| P401 | VCL (core regulator bypass) | Connects to 4.7-µF capacitor to stabilize internal LDO output - critical for analog and CPU voltage stability. |
| VSS | Analog/digital ground | Common return path for all domains; must be low-impedance and decoupled near VCC/VREFH0 pins. |
| VCC | Main power supply | 1.6–5.5 V input powering digital logic, analog blocks, and I/O - requires 0.1-µF ceramic decoupling adjacent to pin. |
| RES | Active-low reset input | Asynchronous hard reset trigger; debounced externally to prevent spurious resets during power ramp. |
| P201/MD | Mode select | Determines boot mode (single-chip vs. SCI boot); fixed at power-up and must remain stable during reset release. |
| P300/SWCLK | SWD clock | Serial Wire Debug clock input - enables non-intrusive programming and real-time trace via standard ARM debug infrastructure. |
| P108/SWDIO | SWD data I/O | Bidirectional debug data line - shares pin with GPIO P108; requires pull-up for SWD operation. |
Key Features
| Feature | Design Value |
|---|---|
| Hardware Security Engine | AES-128/256 encryption + True Random Number Generator (TRNG) - enables secure boot, firmware authentication, and cryptographic key generation without software overhead. |
| Functional Safety Support | Clock Frequency Accuracy Measurement (CAC), SRAM ECC, ADC self-diagnosis, IWDT - satisfies ASIL-B readiness requirements for industrial control and metering. |
| Ultra-Low-Power Timers | Two AGTW 32-bit asynchronous timers - operate independently of main clock domain, enabling wake-up from deep-sleep modes using external events or periodic intervals. |
| Flexible Analog Subsystem | 12-bit ADC with internal reference and temperature sensor input + 12-bit DAC - eliminates need for external references or calibration components in closed-loop sensor systems. |
| Event-Driven Architecture | Event Link Controller (ELC) + Data Transfer Controller (DTC) - allows peripheral-to-peripheral triggering and memory transfers without CPU intervention, reducing active time and power. |
Applications
| Industrial Sensor Node | Smart Energy Metering |
|---|---|
Use Scenario: Battery-powered wireless temperature/humidity/pressure node in factory automation with 10-year lifetime. IC Role / Device Role / Timing Role: Main controller executing sensor acquisition, local preprocessing, CAN/I3C communication, and ultra-low-power sleep scheduling. Use Value: 32-KB flash accommodates OTA update stack; 12-bit ADC achieves ±1 LSB INL for calibrated sensor readings; WLCSP-16 enables compact PCB design. |
Use Scenario: DIN-rail mounted electricity meter requiring tamper detection, metrology-grade sampling, and secure firmware updates. IC Role / Device Role / Timing Role: System-on-chip managing metrology ADC interface, pulse counting, secure storage, and HPLC/RF communication co-processor. Use Value: CAC validates system clock accuracy for time-stamped billing; AES-256 protects firmware integrity; -40°C to +125°C rating ensures reliability in outdoor enclosures. |
| Automotive Body Control Module | Medical Wearable Monitor |
Use Scenario: Under-hood lighting or HVAC actuator control module exposed to extreme thermal cycling. IC Role / Device Role / Timing Role: Real-time motor driver (BLDC via GPT PWM) with CAN bus diagnostics and fault reporting. Use Value: IWDT and SRAM ECC ensure fail-safe recovery from transient faults; 5-V-tolerant pins simplify interface with legacy 5-V sensors. |
Use Scenario: Disposable ECG patch requiring sub-10 µA sleep current, analog front-end integration, and Bluetooth LE coexistence. IC Role / Device Role / Timing Role: Signal acquisition hub digitizing biopotentials, performing baseline correction, and buffering data for wireless transmission. Use Value: 12-bit DAC generates precise bias voltages for electrode offset cancellation; low-power AGTW timers enable accurate heartbeat interval measurement. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FA2E2A54CNJ | HWQFN-20 package (4 mm × 4 mm), 15 GPIOs, same core/peripherals/memory | Better thermal dissipation and easier hand-soldering; requires larger PCB footprint than WLCSP | Select when board-level test access, rework feasibility, or higher I/O count is prioritized over size. |
| R7FA2E1A54CBY | RA2E1 family: Cortex-M23 @ 48 MHz, 32-KB flash, but no CAN, no I3C, reduced safety features (no CAC, no ADC self-test) | Suitable for cost-sensitive consumer IoT where CAN/I3C and functional safety are not required | Choose only if CAN interface and ASIL-B-ready diagnostics are unnecessary - avoids over-specification. |
Compared with R7FA2E2A54CBY#HC1, R7FA2E2A54CNJ offers greater I/O flexibility and thermal margin in a larger package, while R7FA2E1A54CBY reduces cost and complexity by omitting CAN, I3C, and advanced safety circuits - making it viable only in non-safety-critical, non-automated-network applications.
Availability
R7FA2E2A54CBY#HC1 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart energy metering, automotive body control modules, and medical wearable monitors requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R7FA2E2A54CBY#HC1 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 industrial, automotive, and enterprise applications.
The RA2E2 group targets ultra-low-power, cost-optimized embedded systems demanding security, safety, and mixed-signal integration - designed specifically for battery-operated industrial IoT endpoints and resource-constrained edge devices.
FAQ
What is the maximum operating frequency and core architecture of the R7FA2E2A54CBY#HC1?
The R7FA2E2A54CBY#HC1 features an Arm Cortex-M23 core compliant with the 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. This architecture enables secure, deterministic real-time execution suitable for industrial control and safety-aware applications - all implemented within the R7FA2E2A54CBY#HC1's WLCSP-16 package.
Does the R7FA2E2A54CBY#HC1 support CAN communication, and what other interfaces are integrated?
Yes, the R7FA2E2A54CBY#HC1 includes a dedicated CAN module compliant with ISO 11898-1. In addition, it integrates one I3C bus interface (MIPI I3C subset), one Serial Communications Interface (SCI) supporting UART/IIC/SPI/Smart Card modes, one SPI channel, six GPT16 timers, two AGTW low-power timers, and a 12-bit ADC/DAC pair - all confirmed in the R01DS0387EJ0150 datasheet for the R7FA2E2A54CBY#HC1 variant.
What is the package type and pin count of the R7FA2E2A54CBY#HC1, and how many GPIOs does it provide?
The R7FA2E2A54CBY#HC1 uses a 16-pin WLCSP (SUBG0016LB-A) package measuring 1.84 mm × 1.87 mm with 0.4 mm pitch. It provides 11 general-purpose I/O pins, including 2 with 5-V tolerance (P400, P401), along with dedicated functions such as SWDIO/SWCLK, RES, MD, and analog inputs (AN005–AN022). This configuration is explicitly listed in Table 1.11 and Figure 1.5 of the R7FA2E2A54CBY#HC1 datasheet.
What safety and security features are included in the R7FA2E2A54CBY#HC1?
The R7FA2E2A54CBY#HC1 includes ECC in SRAM, flash area protection, ADC self-diagnosis, Clock Frequency Accuracy Measurement (CAC), Independent Watchdog Timer (IWDT), register write protection, and illegal memory access detection. For security, it integrates AES-128/256 accelerators and a True Random Number Generator (TRNG). These features are documented in Sections 1.1 and 1.7 of the R01DS0387EJ0150 datasheet for the R7FA2E2A54CBY#HC1.
What is the operating voltage range and temperature grade of the R7FA2E2A54CBY#HC1?
The R7FA2E2A54CBY#HC1 operates from 1.6 V to 5.5 V and is rated for industrial temperature range of -40°C to +125°C. This grade is confirmed by the "4" suffix in the part number (R7FA2E2A54CBY#HC1 → "4" = -40°C to +125°C) and verified in Table 1.11 of the R01DS0387EJ0150 datasheet. The wide voltage range supports direct battery operation (e.g., 3×AA or Li-SOCl₂) without external regulators.
R7FA2E2A54CBY#HC1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 16-UFBGA, WLCSP
- Series:
- RA2E2
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M23
- Core Size:
- 32-Bit
- Speed:
- 48MHz
- Connectivity:
- I2C, I3C, SCI, SmartCard, SPI, UART/USART
- Peripherals:
- AES, DMA, LVD, POR, PWM, Temp Sensor, TRNG, WDT
- Number of I/O:
- 11
- Program Memory Size:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 2K x 8
- RAM Size:
- 8K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 4x12b SAR
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7FA2E2A54CBY#HC1 FAQ
1.How can I place an order for R7FA2E2A54CBY#HC1 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA2E2A54CBY#HC1 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 R7FA2E2A54CBY#HC1 reliable?
The price and inventory of R7FA2E2A54CBY#HC1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA2E2A54CBY#HC1 is usually 5 days.
3.What payment methods are accepted for R7FA2E2A54CBY#HC1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FA2E2A54CBY#HC1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FA2E2A54CBY#HC1?
R7FA2E2A54CBY#HC1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FA2E2A54CBY#HC1 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 R7FA2E2A54CBY#HC1?
For technical support, including R7FA2E2A54CBY#HC1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA2E2A54CBY#HC1 requirements.
6.How does Aetrix verify that R7FA2E2A54CBY#HC1 is sourced from the original manufacturer or authorized distributors?
All R7FA2E2A54CBY#HC1 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 R7FA2E2A54CBY#HC1 meets industry standards.
7.What is the process for return or replacement of R7FA2E2A54CBY#HC1?
All R7FA2E2A54CBY#HC1 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA2E2A54CBY#HC1, 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 R7FA2E2A54CBY#HC1 part is unused and in its original packaging.
Return procedure for R7FA2E2A54CBY#HC1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R7FA2E2A54CBY#HC1 Tags
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