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Renesas R7FA2E2A33CNJ#BA1
- Part No.:
- R7FA2E2A33CNJ#BA1
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 20-WFQFN Exposed Pad
- Datasheet:
-
R7FA2E2A33CNJ#BA1.pdf
- Description:
- IC MCU 32BIT 16KB FLASH 20HWQFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,736
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Product details
Overview
R7FA2E2A33CNJ#BA1 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 (AES128/256 + TRNG). It targets battery-powered industrial sensors and smart metering endpoints requiring functional safety support and extended temperature operation.
For engineers reviewing the R7FA2E2A33CNJ#BA1 datasheet, R7FA2E2A33CNJ#BA1 pinout, R7FA2E2A33CNJ#BA1 application, or R7FA2E2A33CNJ#BA1 equivalent, key selection criteria include its 20-pin HWQFN package, -40°C to +105°C industrial temperature grade, 1.6–5.5 V wide supply range, dual watchdog timers (WDT/IWDT), and ELC/DTC-based low-power peripheral chaining capability.
Technical Context
The R7FA2E2A33CNJ#BA1 implements the Armv8-M architecture with Memory Protection Unit (MPU) supporting eight regions, enabling secure partitioning of firmware and data in resource-constrained systems. Its clock system integrates HOCO/MOCO/LOCO oscillators with trim functions and includes a dedicated IWDT oscillator for fail-safe reset independence.
Peripheral interconnect is managed via Event Link Controller (ELC), allowing direct module-to-module triggering without CPU intervention-critical for deterministic low-power sensor sampling. The Data Transfer Controller (DTC) offloads memory transfers during ADC conversions or SCI receptions, reducing active CPU time and power consumption.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M23 @ 48 MHz max; supports TrustZone for secure boot and isolated execution environments. |
| Memory | 16-KB code flash (100k P/E cycles), 2-KB data flash, 8-KB SRAM with ECC/parity; enables field firmware updates and robust data logging. |
| Analog Peripherals | 12-bit ADC12 (8 channels), 12-bit DAC12, on-die temperature sensor (TSN); supports precision sensor signal conditioning and closed-loop control. |
| Communication | CAN 2.0B, I3C, SPI ×1, SCI ×1 (UART/I²C/SPI/Smart Card), 5-V-tolerant GPIOs; suitable for mixed-protocol industrial networks. |
| Power & Safety | 1.6–5.5 V operation, LVD with three thresholds, CAC for clock accuracy monitoring, CRC/DOC for data integrity; meets IEC 61508 SIL-2 functional safety requirements. |
| Package & Temp | 20-pin HWQFN (4 mm × 4 mm, 0.5 mm pitch), -40°C to +105°C; optimized for compact, thermally demanding industrial PCB layouts. |
Pinout & Package
Package: 20-pin HWQFN (4 mm × 4 mm, 0.5 mm pitch), exposed die pad recommended connected to VSS.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P400 | CACREF input / AGTIO1 | Accepts external reference clock for Clock Accuracy Measurement Circuit; also serves as general-purpose timer I/O with event capture capability. |
| P401 | VCL analog stabilization | Connects to 4.7 µF capacitor for internal LDO smoothing; critical for stable analog subsystem performance across temperature. |
| P108/SWDIO | SWD debug data I/O | Single-wire debug interface for programming and real-time trace; shares pin with GPIO to minimize footprint. |
| P300/SWCLK | SWD clock input | Provides synchronous timing for debug communication; requires no external pull-up and operates at system clock frequency. |
| P201/MD | Mode select input | Determines boot mode (single-chip vs. SCI boot); must be held static during reset release to avoid undefined startup behavior. |
| RES# | Active-low reset input | Asynchronous reset pin with internal pull-up; compatible with external RC reset circuits or supervisor ICs for reliable power-on sequencing. |
| P109 | GPT16 channel 3 output A | Configurable PWM output for motor control or LED dimming; supports complementary outputs with dead-time insertion via POEG. |
| P110 | GPT16 channel 3 output B | Paired with P109 for high-side/low-side drive in half-bridge configurations; synchronized by same GPT counter for precise timing. |
| P111 | GPT16 channel 2 output A | Independent PWM channel usable for auxiliary timing tasks such as fan speed control or audio tone generation. |
| P112 | GPT16 channel 2 output B | Complementary output to P111; enables full-bridge or 3-phase BLDC commutation when combined with other GTIOC pins. |
| P103 | SCI9 RXD / I3C SDA | Shared serial receive line supporting UART, I3C slave, or simple I²C modes; auto-detected protocol based on initialization sequence. |
| P102 | SCI9 TXD / I3C SCL | Shared serial transmit/clock line; drives bus with programmable slew rate to meet EMC requirements in noisy industrial environments. |
| P101 | AGTEE0 / Key interrupt | Enables external event detection for low-power wake-up; supports edge-triggered interrupts with debouncing via software filtering. |
| P100 | AGTIO0 / ADC input | General-purpose timer I/O with pulse-width measurement capability; doubles as analog input AN022 for flexible sensor integration. |
| P015 | ADC input AN019 | Dedicated analog input with internal sample-and-hold; routed directly to ADC12 without multiplexer delay for highest timing accuracy. |
| P014 | ADC input AN009 | Second dedicated analog input supporting differential or single-ended acquisition; used with internal reference for ratiometric sensor readings. |
| P011/VREFL0 | Analog ground reference | Separate analog ground return path for ADC/DAC; must be star-connected to main VSS to minimize noise coupling into sensitive measurements. |
| P010/VREFH0 | Analog reference voltage | Configurable reference source (1.6–VCC); enables high-accuracy ADC conversion independent of supply rail fluctuations. |
| VCC | Main power supply | 1.6–5.5 V input powering digital core and peripherals; supports direct connection to Li-ion battery or industrial 3.3/5 V rails. |
| VSS | Digital ground | Primary ground reference for logic and interface circuits; electrically isolated from VSS0 to prevent digital noise from corrupting analog results. |
Key Features
| Feature | Design Value |
|---|---|
| Event Link Controller (ELC) | Enables zero-CPU-latency peripheral chaining-e.g., ADC conversion completion triggers DTC transfer to SRAM, then ELC fires GPT timer for next sampling interval. |
| Data Transfer Controller (DTC) | Performs autonomous memory moves during interrupts; eliminates CPU overhead in continuous sensor data acquisition or SCI buffer management. |
| Low-Power Asynchronous Timers (AGTW ×2) | Operate independently of main clock domain; maintain accurate timing in deep-sleep modes (STOP/ULP) for periodic wake-up without waking CPU core. |
| Hardware Security Engine | AES128/256 acceleration + True Random Number Generator (TRNG) enable secure key derivation and encrypted firmware update verification. |
| Functional Safety Support | Built-in CAC, SRAM ECC, register write protection, illegal access detection, and ADC self-diagnosis meet requirements for IEC 61508 SIL-2 certification. |
Applications
| Industrial Sensor Node | Smart Energy Meter |
|---|---|
Use Scenario: Battery-powered wireless temperature/humidity/pressure node deployed in HVAC ducts or factory floors with 10-year lifetime requirement. IC Role / Device Role / Timing Role: Main controller executing sensor fusion, BLE/Wi-Fi stack, and secure OTA updates; AGTW timers manage ultra-low-power sleep/wake cycles. Use Value: 1.6 V minimum operating voltage extends battery life; 12-bit ADC + TSN enables ±0.5°C calibration-grade readings without external components. | Use Scenario: DIN-rail mounted electricity meter with tamper detection, load profiling, and remote firmware updates over PLC or NB-IoT. IC Role / Device Role / Timing Role: System-on-chip managing metrology calculations (via ADC/DAC), secure key storage, CAN-based local bus communication, and real-time clock synchronization. Use Value: Integrated CAN interface connects to legacy building automation systems; AES/TRNG ensures firmware authenticity and prevents cloning attacks. |
| Motor Control Edge Device | IoT Gateway Subsystem |
Use Scenario: Compact BLDC motor driver for fans, pumps, or compressors requiring closed-loop speed regulation and fault reporting. IC Role / Device Role / Timing Role: Real-time motor commutation controller using six GPT16 channels for 3-phase PWM generation; IWDT guarantees safe shutdown on software hang. Use Value: Hardware POEG function inserts precise dead-time between complementary PWM outputs, preventing shoot-through in MOSFET half-bridges. | Use Scenario: Edge gateway aggregating data from multiple RS-485 Modbus sensors before forwarding to cloud via Ethernet or cellular. IC Role / Device Role / Timing Role: Protocol translation hub handling SCI-based Modbus RTU, SPI-connected flash storage, and I3C-connected environmental sensors. Use Value: SCI's multi-protocol support (UART/I²C/SPI/Smart Card) reduces BOM count; ELC links SCI receive interrupt to DTC for zero-copy buffer filling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FA2E2A32DNJ#BA1 | Same RA2E2 family, identical peripherals and pinout, but rated for -40°C to +85°C industrial grade and uses 32KB flash variant. | Suitable for cost-sensitive consumer or commercial equipment where extended temperature is not required. | Select when full 16KB flash capacity is sufficient and ambient operating temperature remains below +85°C. |
| R7FA2E2A33CNK#BA1 | Identical electrical and functional specification, but packaged in 24-pin HWQFN with 4 additional GPIOs and one extra ADC channel. | Preferred for designs needing more I/O flexibility or higher analog channel count without changing firmware. | Choose when board layout allows larger package and additional pins are needed for future expansion or test points. |
Compared with R7FA2E2A32DNJ#BA1, the R7FA2E2A33CNJ#BA1 offers extended temperature range and matches the 16KB flash size exactly; versus R7FA2E2A33CNK#BA1, it trades 4 GPIOs and one ADC channel for smaller footprint and lower thermal mass-ideal for space-constrained industrial modules.
Availability
R7FA2E2A33CNJ#BA1 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart energy meters, motor control edge devices, and IoT gateway subsystems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R7FA2E2A33CNJ#BA1 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 is designed for ultra-low-power, cost-sensitive industrial and consumer edge devices requiring security, functional safety, and seamless scalability within the RA ecosystem.
FAQ
What is the maximum operating frequency of the R7FA2E2A33CNJ#BA1?
The R7FA2E2A33CNJ#BA1 features an Arm Cortex-M23 core with a maximum operating frequency of 48 MHz. This speed is achievable across the full 1.6–5.5 V supply range and -40°C to +105°C temperature grade when using the high-speed on-chip oscillator (HOCO) with appropriate clock configuration. The MCU maintains timing compliance under all specified conditions per R01DS0387EJ0150 Rev.1.50.
Does the R7FA2E2A33CNJ#BA1 support CAN communication?
Yes, the R7FA2E2A33CNJ#BA1 integrates a full CAN 2.0B-compliant controller with message RAM, acceptance filtering, and bit-rate configuration up to 1 Mbps. It supports both standard and extended frame formats and includes loopback mode for self-test. CAN functionality is available on dedicated pins (CANRX/CANTX) and operates independently of other peripherals, making it suitable for industrial fieldbus integration.
What analog peripherals are included in the R7FA2E2A33CNJ#BA1?
The R7FA2E2A33CNJ#BA1 includes a 12-bit successive approximation ADC12 with up to 8 selectable input channels, a 12-bit DAC12, an on-die temperature sensor (TSN), and two low-power analog comparators (ACMPLP0/1). These are supported by dedicated analog power supplies (VREFH0/VREFL0) and separate analog ground (VSS0), enabling precision sensor interfacing without external signal conditioning in most cases.
How does the R7FA2E2A33CNJ#BA1 handle functional safety requirements?
The R7FA2E2A33CNJ#BA1 incorporates multiple hardware safety mechanisms including SRAM ECC, flash area protection, clock frequency accuracy measurement (CAC), ADC self-diagnosis, independent watchdog timer (IWDT), illegal memory access detection, and register write protection. These features collectively support development toward IEC 61508 SIL-2 compliance when implemented per Renesas' Functional Safety Manual (R01UM0152EJ0200).
What is the package type and pin count of the R7FA2E2A33CNJ#BA1?
The R7FA2E2A33CNJ#BA1 uses a 20-pin HWQFN package measuring 4 mm × 4 mm with 0.5 mm pitch and an exposed die pad. This compact footprint supports high-density PCB layouts while maintaining thermal performance across its -40°C to +105°C operating range. Pin assignments match the RA2E2 group's 20-pin variant, ensuring compatibility with existing design libraries and layout tools.
R7FA2E2A33CNJ#BA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 20-WFQFN Exposed Pad
- Series:
- RA2E2
- Packaging:
- Tray
- 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:
- 15
- 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 7x12b SAR
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7FA2E2A33CNJ#BA1 FAQ
1.How can I place an order for R7FA2E2A33CNJ#BA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA2E2A33CNJ#BA1 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 R7FA2E2A33CNJ#BA1 reliable?
The price and inventory of R7FA2E2A33CNJ#BA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA2E2A33CNJ#BA1 is usually 5 days.
3.What payment methods are accepted for R7FA2E2A33CNJ#BA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FA2E2A33CNJ#BA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FA2E2A33CNJ#BA1?
R7FA2E2A33CNJ#BA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FA2E2A33CNJ#BA1 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 R7FA2E2A33CNJ#BA1?
For technical support, including R7FA2E2A33CNJ#BA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA2E2A33CNJ#BA1 requirements.
6.How does Aetrix verify that R7FA2E2A33CNJ#BA1 is sourced from the original manufacturer or authorized distributors?
All R7FA2E2A33CNJ#BA1 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 R7FA2E2A33CNJ#BA1 meets industry standards.
7.What is the process for return or replacement of R7FA2E2A33CNJ#BA1?
All R7FA2E2A33CNJ#BA1 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA2E2A33CNJ#BA1, 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 R7FA2E2A33CNJ#BA1 part is unused and in its original packaging.
Return procedure for R7FA2E2A33CNJ#BA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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