My Inquiry
My Account
Renesas R7FA2E2A34CNJ#AA1
- Part No.:
- R7FA2E2A34CNJ#AA1
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 20-WFQFN Exposed Pad
- Datasheet:
-
R7FA2E2A34CNJ#AA1.pdf
- Description:
- IC MCU ARM 16KB FLASH 20HWQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,300
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
R7FA2E2A34CNJ#AA1 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. It targets battery-powered industrial sensors and smart metering endpoints requiring functional safety and secure firmware updates.
For engineers reviewing the R7FA2E2A34CNJ#AA1 datasheet, R7FA2E2A34CNJ#AA1 pinout, R7FA2E2A34CNJ#AA1 application, or R7FA2E2A34CNJ#AA1 equivalent, key selection criteria include its 20-pin HWQFN package, -40°C to +125°C extended temperature rating, 1.6–5.5 V wide supply range, dual watchdog timers (WDT/IWDT), and I3C/SPI/SCI peripheral set optimized for low-latency sensor aggregation and secure edge control.
Technical Context
The R7FA2E2A34CNJ#AA1 implements the Armv8-M architecture with Memory Protection Unit (MPU) supporting eight regions, enabling robust partitioning of secure and non-secure firmware. Its clock system integrates HOCO/MOCO/LOCO oscillators with trim capability and a dedicated IWDT oscillator for fail-safe timing independence.
Peripheral integration centers on deterministic real-time control: six 16-bit GPTs with PWM outputs (10 total), two AGTW timers for low-power event counting, and a full-featured SCI module supporting UART, SPI, IIC, and smart card modes - all linked via Event Link Controller (ELC) to minimize CPU intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M23 @ 48 MHz max; supports Armv8-M TrustZone-ready execution with MPU for memory isolation. |
| Memory | 16 KB code flash (100k erase cycles), 2 KB data flash, 8 KB SRAM with ECC/parity; enables field-upgradable firmware with data retention. |
| Analog Peripherals | 12-bit ADC12 (4-channel input), 12-bit DAC12, on-die temperature sensor (TSN); supports precision sensor signal conditioning and calibration. |
| Communication | CAN 2.0B, I3C ×1, SPI ×1, SCI ×1 (UART/SPI/IIC/Smart Card); provides mixed-protocol connectivity for industrial bus integration and sensor hub aggregation. |
| Power & Safety | 1.6–5.5 V operation, -40°C to +125°C grade, WDT + IWDT, CAC, CRC, DOC, LVD with three thresholds; meets IEC 61508 SIL-2 functional safety requirements. |
| Security | AES-128/256 acceleration, True Random Number Generator (TRNG), register write protection, illegal access detection; enables secure boot and encrypted OTA updates. |
| Package | 20-pin HWQFN (4 mm × 4 mm, 0.5 mm pitch), exposed die pad; supports high-density PCB layouts with thermal efficiency. |
Pinout & Package
Package: 20-pin HWQFN (4 mm × 4 mm, 0.5 mm pitch), RoHS-compliant Sn finish, exposed die pad recommended connected to VSS.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P108 / SWDIO | Debug Data I/O | Serial Wire Debug bidirectional data line; enables non-intrusive firmware debugging and programming without halting real-time operation. |
| P300 / SWCLK | Debug Clock Input | Serial Wire Debug clock input; synchronizes debug transactions at up to 12 MHz for fast flash programming. |
| P201 / MD | Mode Control Input | Configures single-chip vs. SCI boot mode at reset; must remain stable during power-up sequencing. |
| P109 / CLKOUT_B | Programmable Clock Output | Drives external logic or test equipment with selectable system clocks (HOCO/MOCO/LOCO); aids timing validation and synchronization. |
| P110 / SSLA0_C | SPI Slave Select Output | Active-low chip select for SPI slave device #0; supports multi-slave SPI bus expansion with hardware-controlled timing. |
| P010 / VREFH0 | ADC Reference High | Provides precise 1.6–5.5 V reference voltage for 12-bit ADC conversions; requires 0.1 µF decoupling to VREFL0 for accuracy. |
| P400 / CACREF_C | Clock Accuracy Reference | Accepts external crystal or clock signal for Clock Frequency Accuracy Measurement Circuit; validates oscillator stability in safety-critical applications. |
Key Features
| Feature | Design Value |
|---|---|
| Event Link Controller (ELC) | Direct hardware routing between peripherals (e.g., ADC trigger → GPT capture → DTC transfer) eliminates CPU polling and reduces latency by >90%. |
| Data Transfer Controller (DTC) | Automates memory-to-peripheral transfers on interrupt; offloads 100% of UART/SPI/ADC DMA tasks without CPU involvement. |
| Low-Power Asynchronous Timers (AGTW ×2) | Operate independently from main clock domain; enable wake-from-deep-sleep event counting with sub-µA current draw. |
| Capacitive Touch Sensing Unit (CTSU2) | Supports up to 34 touch channels with noise immunity; enables robust human-machine interfaces on metal-overlaid panels without external components. |
| Functional Safety Support | Built-in CAC, CRC, DOC, SRAM parity/ECC, and dual watchdogs meet ASIL-B readiness per ISO 26262 and SIL-2 per IEC 61508. |
Applications
| Industrial Sensor Node | Smart Utility Meter |
|---|---|
|
Use Scenario: Battery-powered wireless temperature/humidity/pressure sensor deployed in HVAC ducts or factory floors. IC Role / Device Role / Timing Role: Main controller executing sensor acquisition, local data fusion, CAN/I3C communication, and secure OTA update handling. Use Value: 16 KB flash accommodates dual-bank firmware; 12-bit ADC achieves ±1 LSB INL for NIST-traceable calibration; -40°C to +125°C rating ensures reliability in uncontrolled environments. |
Use Scenario: Electricity/water/gas meter with tamper detection, pulse counting, and PLC/RF backhaul interface. IC Role / Device Role / Timing Role: System-on-chip managing metrology ADC sampling, pulse input capture, secure key storage, and time-stamped event logging. Use Value: Integrated AES-256 encrypts consumption data before transmission; IWDT guarantees recovery from brown-out-induced lockup; 2-KB data flash stores 10+ years of billing history. |
| Motor Control Edge Node | Secure IoT Gateway Module |
|
Use Scenario: Brushless DC motor driver for HVAC fans or small pumps with Hall sensor feedback and overcurrent protection. IC Role / Device Role / Timing Role: Real-time PWM generator using GPT16 ×6 with POEG for safe gate drive disable and AGTW for RPM measurement. Use Value: Six GPT channels deliver 10 independent PWM outputs for 3-phase BLDC commutation; 48 MHz core sustains 20 kHz PWM switching with <100 ns jitter. |
Use Scenario: Edge gateway aggregating BLE/Zigbee sensor data and forwarding via CAN or cellular modem to cloud platform. IC Role / Device Role / Timing Role: Secure protocol bridge performing TLS handshake acceleration, certificate validation, and encrypted packet forwarding. Use Value: TRNG seeds cryptographic keys at boot; AES engine processes 128-bit blocks in <100 cycles; SCI + I3C support concurrent legacy and next-gen sensor interfacing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FA2E2A34CNK#AA0 | 24-pin HWQFN package; adds 4 GPIOs, 1 extra ADC channel, and 2 additional PWM outputs vs. R7FA2E2A34CNJ#AA1. | Preferred where board layout allows larger footprint and higher peripheral count is required for multi-sensor systems. | Select when needing >15 GPIOs or full 8-channel ADC support; not pin-compatible due to different pin count and assignment. |
| R7FA2E1A34CNJ#AA0 | RA2E1 family part; same 20-pin HWQFN but lacks CAN, I3C, and hardware AES; uses Cortex-M23 at 48 MHz with 16 KB flash. | Suitable for cost-sensitive, non-automotive applications without bus-level security or CAN physical layer requirements. | Choose for simpler designs omitting CAN/I3C and where software-based crypto suffices; shares identical pinout but differs in peripheral mapping. |
Compared with R7FA2E2A34CNJ#AA1, the CNK variant offers expanded I/O and analog resources in a larger package, while the RA2E1 alternative trades CAN, I3C, and hardware crypto for lower BOM cost-making R7FA2E2A34CNJ#AA1 optimal for thermally constrained, safety-certified edge nodes requiring mixed-protocol connectivity.
Availability
R7FA2E2A34CNJ#AA1 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart utility meters, motor control edge nodes, and secure IoT gateway modules requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R7FA2E2A34CNJ#AA1 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 markets, with annual revenue exceeding $10 billion and design centers worldwide.
The RA2E2 group targets ultra-low-power, cost-optimized industrial and consumer edge devices, emphasizing functional safety, security, and seamless scalability from 16 KB to 64 KB flash variants within a unified software ecosystem.
FAQ
What is the maximum operating frequency and core architecture of the R7FA2E2A34CNJ#AA1?
The R7FA2E2A34CNJ#AA1 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), single-cycle integer multiplier, and 19-cycle integer divider. This architecture enables efficient execution of real-time control algorithms while supporting TrustZone-ready secure firmware partitioning in the R7FA2E2A34CNJ#AA1.
Does the R7FA2E2A34CNJ#AA1 support CAN communication, and what version is implemented?
Yes, the R7FA2E2A34CNJ#AA1 integrates a CAN 2.0B-compliant controller supporting both standard and extended frame formats, bit rates up to 1 Mbps, and automatic retransmission. It includes dedicated message RAM, acceptance filtering, and loopback self-test mode. The CAN module is fully supported in Renesas' FSP v4.x drivers and qualifies for use in industrial automation networks where deterministic messaging and EMC robustness are required in the R7FA2E2A34CNJ#AA1.
What are the memory resources available on the R7FA2E2A34CNJ#AA1?
The R7FA2E2A34CNJ#AA1 provides 16 KB of code flash memory (rated for 100,000 program/erase cycles), 2 KB of data flash memory, and 8 KB of on-chip SRAM with optional ECC or parity error checking. The code flash supports dual-bank operation for safe over-the-air updates, while the data flash enables reliable storage of calibration coefficients, metering logs, or security keys - all accessible with hardware-accelerated read/write in the R7FA2E2A34CNJ#AA1.
Which package type and pin count does the R7FA2E2A34CNJ#AA1 use?
The R7FA2E2A34CNJ#AA1 uses a 20-pin HWQFN package measuring 4 mm × 4 mm with 0.5 mm pitch and a thermally enhanced exposed die pad. This compact footprint supports high-density PCB layouts while maintaining thermal performance up to +125°C ambient. Pin assignments match the RA2E2 family's 20-pin variant, ensuring consistent layout reuse across flash-size variants of the R7FA2E2A34CNJ#AA1.
What security and functional safety features are built into the R7FA2E2A34CNJ#AA1?
The R7FA2E2A34CNJ#AA1 includes AES-128/256 hardware acceleration, True Random Number Generator (TRNG), register write protection, illegal memory access detection, SRAM parity/ECC, Flash area protection, and Clock Frequency Accuracy Measurement Circuit (CAC). These features collectively support IEC 61508 SIL-2 and ISO 26262 ASIL-B readiness, enabling certified operation in safety-critical industrial and metering applications using the R7FA2E2A34CNJ#AA1.
R7FA2E2A34CNJ#AA1 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, SPI, UART/USART
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 16
- 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:
- External
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7FA2E2A34CNJ#AA1 FAQ
1.How can I place an order for R7FA2E2A34CNJ#AA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA2E2A34CNJ#AA1 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 R7FA2E2A34CNJ#AA1 reliable?
The price and inventory of R7FA2E2A34CNJ#AA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA2E2A34CNJ#AA1 is usually 5 days.
3.What payment methods are accepted for R7FA2E2A34CNJ#AA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FA2E2A34CNJ#AA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FA2E2A34CNJ#AA1?
R7FA2E2A34CNJ#AA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FA2E2A34CNJ#AA1 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 R7FA2E2A34CNJ#AA1?
For technical support, including R7FA2E2A34CNJ#AA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA2E2A34CNJ#AA1 requirements.
6.How does Aetrix verify that R7FA2E2A34CNJ#AA1 is sourced from the original manufacturer or authorized distributors?
All R7FA2E2A34CNJ#AA1 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 R7FA2E2A34CNJ#AA1 meets industry standards.
7.What is the process for return or replacement of R7FA2E2A34CNJ#AA1?
All R7FA2E2A34CNJ#AA1 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA2E2A34CNJ#AA1, 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 R7FA2E2A34CNJ#AA1 part is unused and in its original packaging.
Return procedure for R7FA2E2A34CNJ#AA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R7FA2E2A34CNJ#AA1 Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
