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Renesas R7FA2E2A34CBY#HC1
- Part No.:
- R7FA2E2A34CBY#HC1
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 16-UFBGA, WLCSP
- Datasheet:
-
R7FA2E2A34CBY#HC1.pdf
- Description:
- IC MCU 32BIT 16KB FLASH 16WLCSP
- Quantity:
- Payment:
- Shipping:
Inventory:2,000
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Product details
Overview
R7FA2E2A34CBY#HC1 from Renesas Electronics is an ultra-low-power 32-bit Arm® Cortex®-M23 microcontroller operating at up to 48 MHz, featuring 16-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 R7FA2E2A34CBY#HC1 datasheet, R7FA2E2A34CBY#HC1 pinout, R7FA2E2A34CBY#HC1 application, or R7FA2E2A34CBY#HC1 equivalent, key selection criteria include its WLCSP-16 package, -40°C to +125°C extended temperature rating, 1.6–5.5 V wide supply range, 11 GPIOs with 5-V tolerance on two pins, and support for I3C, SPI, SCI, and CAN in a single-chip solution.
Technical Context
The R7FA2E2A34CBY#HC1 implements the Armv8-M architecture with Memory Protection Unit (MPU) and CoreSight™ MTB-M23 trace, enabling secure, deterministic real-time operation. Its system-level features include Event Link Controller (ELC) for CPU-free peripheral coordination and Data Transfer Controller (DTC) for autonomous data movement triggered by interrupts.
Power management integrates Low Power Asynchronous General Purpose Timers (AGTW × 2), Independent Watchdog Timer (IWDT) with dedicated 15-kHz oscillator, and multiple low-power modes - all supporting sub-μA sleep current while retaining SRAM and register state. Safety mechanisms include ECC in SRAM, ADC self-diagnosis, CAC for clock accuracy validation, and register write protection via PRCR.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | Arm Cortex-M23, 48 MHz max - enables real-time deterministic execution with TrustZone®-enabled security isolation. |
| Memory | 16-KB code flash + 2-KB data flash + 8-KB SRAM - supports firmware updates, parameter storage, and real-time buffering without external memory. |
| Analog | 12-bit ADC (4 channels), 12-bit DAC, on-die temperature sensor - provides precision sensing and actuation control for closed-loop systems. |
| Connectivity | CAN 2.0B, I3C, SPI, SCI (UART/IIC/SPI/Smart Card) - enables robust fieldbus communication and multi-protocol sensor interfacing. |
| Package & Temp | WLCSP-16 (1.84 mm × 1.87 mm, 0.4 mm pitch), -40°C to +125°C - suitable for space-constrained, high-reliability automotive and industrial environments. |
| Power | 1.6–5.5 V supply, 5-V-tolerant I/O on P400/P401 - simplifies power design and enables direct interfacing with legacy 5-V peripherals. |
| Safety/Security | ECC-SRAM, AES-128/256, TRNG, CAC, IWDT - meets IEC 61508 SIL-2 and ISO/SAE 21434 functional safety and cybersecurity requirements. |
Pinout & Package
Package: WLCSP-16 (SUBG0016LB-A), 1.84 mm × 1.87 mm, 0.4 mm pitch, exposed die pad recommended to be connected to VSS or left floating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P400 | CACREF / AGTIO1 | Measurement reference clock input or AGTW event input - enables precise clock calibration and low-power timer triggering. |
| P401 | VCL / AGTEE1 | Internal LDO stabilization capacitor connection or AGTW enable - critical for analog power integrity and timer activation control. |
| VCL | Analog LDO bypass | Connects to 4.7-µF capacitor to stabilize internal analog regulator - mandatory for ADC/DAC accuracy and noise immunity. |
| VSS | Digital ground | Primary digital reference plane - must be low-impedance and tied to VSS0 and VREFL0 for mixed-signal integrity. |
| VCC | Digital supply | 1.6–5.5 V main power - powers core, peripherals, and I/O; decoupling with 0.1-µF capacitor required per pin. |
| RES | Active-low reset | Asynchronous hardware reset input - initiates full system initialization and clears all registers and memory. |
| P201/MD | Mode select | Configures boot mode (single-chip vs. SCI boot) at power-up - must remain stable during reset release. |
| P300/SWCLK | SWD clock | Serial Wire Debug clock input - enables non-intrusive debugging and programming via standard ARM SWD interface. |
| P108/SWDIO | SWD data I/O | Serial Wire Debug bidirectional data line - carries debug commands, trace data, and flash programming traffic. |
| P109 | CLKOUT | Programmable clock output - allows external monitoring of system clock or feeding to secondary devices. |
| P110 | IRQ3/KRM00 | Maskable interrupt or key interrupt input - supports wake-from-sleep on external events or user button press. |
| P111 | IRQ4/KRM03 | Maskable interrupt or key interrupt input - dual-role pin for flexible system event handling and human interface detection. |
| P112 | IRQ1/KRM02 | Maskable interrupt or key interrupt input - enables responsive edge-triggered wake-up from ultra-low-power states. |
| P103 | IRQ6/KRM03 | Maskable interrupt or key interrupt input - provides additional configurable wake source for system-level event management. |
| P102 | AN020/ADTRG0 | Analog input or ADC trigger - allows external signal sampling synchronization or direct sensor voltage measurement. |
Key Features
| Feature | Design Value |
|---|---|
| Event Link Controller (ELC) | Enables direct peripheral-to-peripheral triggering (e.g., ADC conversion start → DTC transfer → CRC calculation) without CPU involvement, reducing latency and power. |
| Data Transfer Controller (DTC) | Autonomous DMA-like transfers triggered by 32+ interrupt sources - eliminates CPU polling overhead for UART/SPI/ADC data movement. |
| Low-Power Analog Comparator (ACMPLP) | Two independent comparators with selectable speed modes - supports wake-on-threshold detection with <1 µA active current in low-speed mode. |
| Capacitive Touch Sensing Unit (CTSU2) | Hardware-accelerated touch sensing on up to 32 electrodes - enables robust, noise-immune UI implementation without external ICs or firmware burden. |
| Independent Watchdog Timer (IWDT) | Dedicated 15-kHz oscillator ensures fail-safe reset even if main clock fails - critical for ASIL-B and SIL-2 safety-critical applications. |
| Security Accelerator | Hardware AES-128/256 and True Random Number Generator (TRNG) - enables fast, side-channel-resistant cryptographic operations for secure boot and OTA updates. |
Applications
| Industrial Sensor Node | Smart Energy Meter |
|---|---|
Use Scenario: Battery-powered wireless temperature/humidity/pressure sensor node in factory automation or HVAC monitoring. IC Role / Device Role / Timing Role: Main controller executing sensor acquisition, local processing, CAN/I3C communication, and ultra-low-power sleep scheduling. Use Value: 11 GPIOs with 5-V tolerance simplify interface to legacy analog sensors; 12-bit ADC + TSN enables ±0.5°C accuracy; sub-μA deep-sleep current extends 10-year battery life. | Use Scenario: DIN-rail mounted electricity meter with tamper detection, load profiling, and HAN communication. IC Role / Device Role / Timing Role: System-on-chip managing metrology ADC interface, secure firmware updates, CAN-based utility backhaul, and real-time clock/calendar functions. Use Value: Integrated AES/TRNG secures firmware and metering data; RTC with calendar mode supports billing cycles; CAN module meets IEC 62056-21 compliance for utility communication. |
| Automotive Body Control Module | Medical Wearable Monitor |
Use Scenario: Low-cost door module controlling window lift, mirror adjustment, and interior lighting in entry-level vehicles. IC Role / Device Role / Timing Role: Real-time CAN node performing PWM motor control, switch debouncing, and LIN gateway functions. Use Value: GPT16 × 6 with POEG enables synchronized 3-phase BLDC drive for window motors; -40°C to +125°C rating ensures under-hood reliability; IWDT satisfies ISO 26262 ASIL-B requirements. | Use Scenario: Disposable ECG patch with motion artifact compensation, Bluetooth LE connectivity, and 7-day battery life. IC Role / Device Role / Timing Role: Signal acquisition hub digitizing analog bio-potentials, running adaptive filtering, and managing secure BLE data transmission. Use Value: 12-bit ADC with programmable gain amplifier supports µV-level ECG signals; low-power AGTW timers enable motion-synchronized sampling; TRNG generates keys for HIPAA-compliant BLE pairing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FA2E2A34CNJ | HWQFN-20 package, same 16-KB flash/SRAM/CAN/I3C, but larger footprint and 20 GPIOs vs. 11. | Better suited for prototyping or designs requiring more I/O or easier rework; lacks WLCSP's board area savings. | Select when PCB assembly process does not support WLCSP or when additional GPIOs are needed for expansion. |
| R7FA2E1A34CBY | RA2E1 family part: Cortex-M23, same WLCSP-16, but no CAN, no I3C, only 12-bit ADC (4 ch), 16-KB flash, 8-KB SRAM. | Targeted at cost-sensitive, non-fieldbus applications like simple IoT endpoints or consumer wearables. | Choose when CAN/I3C are unnecessary and BOM cost reduction is prioritized over protocol flexibility. |
Compared with R7FA2E2A34CBY#HC1, R7FA2E2A34CNJ offers greater I/O count and reworkability at the expense of size and thermal performance, while R7FA2E1A34CBY reduces feature set and protocol support to lower unit cost - making the R7FA2E2A34CBY#HC1 optimal for compact, CAN-enabled industrial edge nodes requiring extended temperature operation.
Availability
R7FA2E2A34CBY#HC1 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart energy meters, automotive body control modules, and medical wearable monitors requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R7FA2E2A34CBY#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 Corporation is a global semiconductor leader delivering trusted embedded solutions for automotive, industrial, infrastructure, and IoT applications.
The RA2E2 Group targets ultra-low-power, cost-optimized 32-bit MCUs for battery-operated and space-constrained industrial and consumer edge devices - emphasizing security, safety, and seamless scalability within the RA ecosystem.
FAQ
What is the maximum operating frequency of the R7FA2E2A34CBY#HC1?
The R7FA2E2A34CBY#HC1 operates at a maximum frequency of 48 MHz using the Arm Cortex-M23 core. This is achieved with the high-speed on-chip oscillator (HOCO) configured at 48 MHz, and the device maintains timing compliance across its full -40°C to +125°C operating temperature range. The core supports dynamic clock scaling to reduce power during low-activity periods.
Does the R7FA2E2A34CBY#HC1 support CAN FD or only classical CAN 2.0B?
The R7FA2E2A34CBY#HC1 supports only classical CAN 2.0B, not CAN FD. Its integrated CAN module complies with ISO 11898-1:2015 for bit rates up to 1 Mbps and includes message objects, FIFO buffering, and error handling - sufficient for industrial automation and automotive body networks where FD bandwidth is not required.
How many analog input channels does the R7FA2E2A34CBY#HC1 ADC support?
The R7FA2E2A34CBY#HC1 integrates a 12-bit successive approximation ADC (ADC12) with 4 selectable analog input channels - AN005, AN006, AN009, and AN010 - as confirmed by the RA2E2 datasheet Table 1.11 and Pin List (Page 13). This matches the "3xx" memory variant designation and is validated for the WLCSP-16 package configuration.
What debug interface does the R7FA2E2A34CBY#HC1 use, and are external pull-ups required?
The R7FA2E2A34CBY#HC1 uses Serial Wire Debug (SWD) via pins P300 (SWCLK) and P108 (SWDIO). No external pull-ups are required: SWDIO has an internal weak pull-up enabled by default after reset, and SWCLK is driven actively by the debugger. The interface supports full JTAG/SWD functionality including flash programming, real-time tracing, and breakpoints.
Is the R7FA2E2A34CBY#HC1 pin-compatible with other RA2E2 variants in the WLCSP-16 package?
Yes, the R7FA2E2A34CBY#HC1 is fully pin-compatible with all other RA2E2 WLCSP-16 variants (e.g., R7FA2E2A74CBY, R7FA2E2A54CBY) - sharing identical pin assignments, electrical characteristics, and package dimensions (SUBG0016LB-A). Only flash size (16 KB), data flash (2 KB), and SRAM (8 KB) differ; all peripherals and I/O functions map identically across the BY suffix family.
R7FA2E2A34CBY#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:
- 16KB (16K 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:
R7FA2E2A34CBY#HC1 FAQ
1.How can I place an order for R7FA2E2A34CBY#HC1 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA2E2A34CBY#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 R7FA2E2A34CBY#HC1 reliable?
The price and inventory of R7FA2E2A34CBY#HC1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA2E2A34CBY#HC1 is usually 5 days.
3.What payment methods are accepted for R7FA2E2A34CBY#HC1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FA2E2A34CBY#HC1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FA2E2A34CBY#HC1?
R7FA2E2A34CBY#HC1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FA2E2A34CBY#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 R7FA2E2A34CBY#HC1?
For technical support, including R7FA2E2A34CBY#HC1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA2E2A34CBY#HC1 requirements.
6.How does Aetrix verify that R7FA2E2A34CBY#HC1 is sourced from the original manufacturer or authorized distributors?
All R7FA2E2A34CBY#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 R7FA2E2A34CBY#HC1 meets industry standards.
7.What is the process for return or replacement of R7FA2E2A34CBY#HC1?
All R7FA2E2A34CBY#HC1 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA2E2A34CBY#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 R7FA2E2A34CBY#HC1 part is unused and in its original packaging.
Return procedure for R7FA2E2A34CBY#HC1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R7FA2E2A34CBY#HC1 Tags
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