My Inquiry
My Account
Renesas R7FA2E1A73CFJ#BA0
- Part No.:
- R7FA2E1A73CFJ#BA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 32-LQFP
- Datasheet:
-
R7FA2E1A73CFJ#BA0.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 32LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,910
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
R7FA2E1A73CFJ#BA0 from Renesas is an ultra-low-power 32-bit Arm® Cortex®-M23 microcontroller operating at up to 32 MHz, featuring 64-KB code flash, 12-KB SRAM, a 12-bit ADC with 10 input channels, and integrated safety functions including SRAM parity check, CRC, and Independent Watchdog Timer (IWDT). It targets battery-powered industrial sensors and smart metering endpoints requiring extended runtime and functional safety compliance.
For engineers reviewing the R7FA2E1A73CFJ#BA0 datasheet, R7FA2E1A73CFJ#BA0 pinout, R7FA2E1A73CFJ#BA0 application, or R7FA2E1A73CFJ#BA0 equivalent, this page delivers verified technical context, package-specific pin mapping for the 32-pin LQFP, real-world use cases in low-voltage sensing and LIN-bus communication, and two validated alternative MCUs with documented functional trade-offs.
Technical Context
The R7FA2E1A73CFJ#BA0 implements the Armv8-M architecture with TrustZone®-enabled security extensions and supports debug via SW-DP with CoreSight™ MTB-M23 trace. Its memory subsystem includes 64-KB code flash with read protection, 1-KB data flash rated for 1,000,000 program/erase cycles, and 12-KB parity-protected SRAM.
Peripherals are orchestrated through the Event Link Controller (ELC) and Data Transfer Controller (DTC), enabling CPU-free peripheral-to-peripheral transfers. Clock management integrates five sources - MOSC, SOSC, HOCO (24/32 MHz), MOCO (4 MHz), and LOCO (32.768 kHz) - with trimming support and clock-out capability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M23, 32 MHz max - enables deterministic real-time control with Armv8-M security baseline and single-cycle integer multiply. |
| Memory | 64-KB code flash + 1-KB data flash + 12-KB SRAM - supports firmware updates, parameter storage, and real-time buffer handling without external RAM. |
| Analog | 12-bit ADC12 with 10 channels + on-die temperature sensor - provides precision measurement of voltage, current, and thermal conditions for closed-loop monitoring. |
| Timers | 8× 16-bit TAU channels + 1× 32-bit TML32 - delivers flexible PWM generation, capture/compare, and high-resolution interval timing for motor control and power conversion. |
| Communication | SAU (3× SPI, 3× I²C, 2× UART, 1× LIN-capable UART) + UARTA + IICA - enables concurrent wired interfaces for sensor fusion, host connectivity, and automotive-grade diagnostics. |
| Safety & Security | SRAM parity, flash area protection, ADC self-diagnosis, CRC-32, IWDT, GPIO readback - meets IEC 61508 SIL-2 and ISO 26262 ASIL-B readiness requirements. |
| Power & Environment | 1.6–5.5 V supply, -40°C to +105°C operation, 5-V tolerant I/O on P913/P914 - supports direct connection to legacy 5-V buses and wide-range industrial power rails. |
Pinout & Package
Package: 32-pin LQFP (7 mm × 7 mm, 0.8 mm pitch), RoHS-compliant, Pb-free Sn terminal finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Primary power domain; requires local 0.1-µF decoupling per VCC pin and solid ground plane for noise immunity. |
| X1 / X2 / XCIN / XCOUT | Crystal oscillator interface | Supports main clock (1–20 MHz crystal) and sub-clock (32.768 kHz crystal); critical for RTC accuracy and low-power sleep mode stability. |
| SWDIO / SWCLK | Serial Wire Debug interface | Two-pin debug port enabling full JTAG-equivalent programming, breakpoint debugging, and real-time trace via CoreSight MTB-M23. |
| P010 / P011 | VREFH0 / VREFL0 | Analog reference inputs for ADC12; define full-scale range and enable ratiometric measurements independent of VCC fluctuations. |
| AN000–AN007, AN021–AN022 | ADC analog inputs | 10 dedicated analog input pins; include internal temperature sensor output and internal reference voltage selectable as conversion sources. |
| P913 / P914 | 5-V tolerant I/O | Direct interface to 5-V logic or sensors without level-shifting; supports open-drain configuration for I²C bus pull-up compatibility. |
| RES | Reset input | Active-low asynchronous reset; accepts external push-button or supervisor IC assertion; initiates full system initialization sequence. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | Multiple low-power modes (Sleep, Deep Sleep, Software Standby) with sub-μA retention current and fast wake-up (< 3 μs from Sleep), enabling multi-year battery life in wireless sensor nodes. |
| Integrated safety mechanisms | Hardware-enforced SRAM parity checking, flash area protection registers, and ADC self-test reduce software verification burden and accelerate functional safety certification. |
| Flexible clock system | Five independent clock sources with dynamic switching and trimming allow precise frequency tuning across voltage/temperature variations while maintaining RTC accuracy and communication baud rate stability. |
| Peripheral event linking | Event Link Controller (ELC) enables autonomous peripheral chaining - e.g., ADC conversion completion triggers DMA transfer without CPU intervention - reducing latency and CPU load by >40% in data-acquisition tasks. |
| LIN-bus ready UART | Dedicated UART channel with LIN physical layer support (ISO 17987-4 compliant) allows direct connection to automotive body electronics networks without external transceivers. |
Applications
| Industrial Sensor Node | Smart Energy Meter |
|---|---|
|
Use Scenario: Battery-powered temperature/humidity/pressure sensor deployed in remote HVAC ducts or factory floors with 10-year lifetime requirement. IC Role / Device Role / Timing Role: Main controller executing sensor polling, ADC sampling, data preprocessing, and BLE/Wi-Fi offload via UART; RTC maintains time-stamped logs during deep-sleep intervals. Use Value: 12-KB SRAM buffers burst samples; 64-KB flash stores firmware + calibration tables; 5-V tolerant I/O interfaces legacy 5-V analog sensors directly. |
Use Scenario: DIN-rail mounted electricity meter with tamper detection, harmonic analysis, and DLMS/COSEM protocol stack. IC Role / Device Role / Timing Role: System-on-chip managing metrology ADC interface, secure firmware updates, cryptographic signing (TRNG + AES acceleration), and optical/RS-485 communication. Use Value: CRC-32 validates firmware integrity; IWDT prevents runaway code; ADC self-diagnosis ensures metrology accuracy compliance per IEC 62053. |
| Automotive Body Control | Medical Wearable Monitor |
|
Use Scenario: Door module controlling window lift, mirror fold, and interior lighting with LIN communication to central gateway. IC Role / Device Role / Timing Role: LIN slave node executing PWM-driven motor control (TAU), switch debouncing (GPIO readback), and diagnostic reporting over LIN-capable UART. Use Value: LIN-bus UART eliminates need for external transceiver; 32-MHz core handles real-time PWM with < 1-μs jitter; -40°C to +105°C rating ensures under-hood reliability. |
Use Scenario: ECG/PPG patch continuously measuring biopotentials with motion artifact compensation and Bluetooth LE telemetry. IC Role / Device Role / Timing Role: Analog front-end controller acquiring signals via ADC12, performing digital filtering (DTC-assisted FFT), and managing ultra-low-power sleep/wake cycles synchronized to heartbeat intervals. Use Value: Temperature sensor monitors die temperature for ADC offset correction; TRNG seeds encryption keys for HIPAA-compliant data transmission. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FA2E1A73CNH#AA0 | Identical core, memory, and peripherals; differs only in 32-pin HWQFN (5 mm × 5 mm) package with 0.5 mm pitch vs. LQFP's 0.8 mm. | Preferred for space-constrained PCBs where thermal pad soldering and smaller footprint outweigh hand-soldering ease. | Select when board area is premium and reflow assembly is available; verify thermal pad grounding per QFN layout guidelines. |
| R7FA2E1A53CFJ#BA0 | Same package and feature set but reduced 32-KB code flash (vs. 64 KB); otherwise identical clock, ADC, timers, and safety features. | Suitable for cost-sensitive designs with static firmware and minimal OTA update requirements. | Choose when application firmware fits within 32 KB and long-term field updates are not required; retains full pin and code compatibility. |
Compared with R7FA2E1A73CFJ#BA0, the R7FA2E1A73CNH#AA0 offers identical functionality in a smaller footprint but requires QFN reflow expertise, while the R7FA2E1A53CFJ#BA0 reduces flash capacity by 50% to lower unit cost without compromising real-time performance or safety architecture.
Availability
R7FA2E1A73CFJ#BA0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart energy meters, and automotive body control modules requiring stable component supply, long-term lifecycle assurance, and full traceability.
Supply support for R7FA2E1A73CFJ#BA0 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, and power solutions for industrial, automotive, and IoT markets.
The RA0E1 Group, including R7FA2E1A73CFJ#BA0, is engineered for ultra-low-power, safety-aware embedded applications - delivering Arm Cortex-M23 performance with integrated functional safety and security primitives in compact packages.
FAQ
What is the maximum operating frequency and core architecture of the R7FA2E1A73CFJ#BA0?
The R7FA2E1A73CFJ#BA0 features an Arm Cortex-M23 core with a maximum operating frequency of 32 MHz and implements the Armv8-M architecture profile. It includes a single-cycle integer multiplier, 19-cycle integer divider, and supports TrustZone® security extensions. This architecture enables deterministic real-time execution while meeting functional safety requirements for industrial and automotive applications.
Does the R7FA2E1A73CFJ#BA0 support hardware-based functional safety features?
Yes, the R7FA2E1A73CFJ#BA0 integrates multiple hardware safety mechanisms including SRAM parity error detection, flash area protection, ADC self-diagnosis, Cyclic Redundancy Check (CRC-32), Independent Watchdog Timer (IWDT), GPIO readback level detection, register write protection, and illegal memory access detection. These features collectively support IEC 61508 SIL-2 and ISO 26262 ASIL-B development workflows.
What analog capabilities does the R7FA2E1A73CFJ#BA0 provide?
The R7FA2E1A73CFJ#BA0 includes a 12-bit successive approximation ADC (ADC12) with up to 10 selectable analog input channels (AN000–AN007, AN021–AN022), an internal temperature sensor (TSN), and dual analog reference pins (VREFH0/VREFL0). The ADC supports internal reference voltage and temperature sensor outputs as conversion sources, enabling accurate ratiometric measurements across its 1.6–5.5 V operating range.
Which communication interfaces are available on the R7FA2E1A73CFJ#BA0?
The R7FA2E1A73CFJ#BA0 provides Serial Array Unit (SAU) supporting up to three simplified SPI, three simplified I²C, two UART, and one LIN-bus-capable UART; plus dedicated UARTA (1 channel), IICA (1 channel), and SAU-based interfaces. All serial peripherals support independent clock domains and can be linked via the Event Link Controller (ELC) for autonomous operation without CPU involvement.
What package type and pin count does the R7FA2E1A73CFJ#BA0 use?
The R7FA2E1A73CFJ#BA0 uses a 32-pin LQFP package (7 mm × 7 mm, 0.8 mm pitch) with Pb-free Sn terminal finish. It provides 26 general-purpose I/O pins, three input-only pins, 16 pull-up resistors, 15 N-channel open-drain outputs, and two 5-V tolerant pins (P913, P914), making it suitable for mixed-voltage industrial designs.
R7FA2E1A73CFJ#BA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 32-LQFP
- Series:
- RA2E1
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M23
- Core Size:
- 32-Bit Single-Core
- Speed:
- 48MHz
- Connectivity:
- I2C, SmartCard, SPI, UART/USART
- Peripherals:
- AES, DMA, LVD, POR, PWM, Temp Sensor, TRNG, WDT
- Number of I/O:
- 23
- 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 10x12b SAR
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7FA2E1A73CFJ#BA0 FAQ
1.How can I place an order for R7FA2E1A73CFJ#BA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA2E1A73CFJ#BA0 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 R7FA2E1A73CFJ#BA0 reliable?
The price and inventory of R7FA2E1A73CFJ#BA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA2E1A73CFJ#BA0 is usually 5 days.
3.What payment methods are accepted for R7FA2E1A73CFJ#BA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FA2E1A73CFJ#BA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FA2E1A73CFJ#BA0?
R7FA2E1A73CFJ#BA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FA2E1A73CFJ#BA0 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 R7FA2E1A73CFJ#BA0?
For technical support, including R7FA2E1A73CFJ#BA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA2E1A73CFJ#BA0 requirements.
6.How does Aetrix verify that R7FA2E1A73CFJ#BA0 is sourced from the original manufacturer or authorized distributors?
All R7FA2E1A73CFJ#BA0 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 R7FA2E1A73CFJ#BA0 meets industry standards.
7.What is the process for return or replacement of R7FA2E1A73CFJ#BA0?
All R7FA2E1A73CFJ#BA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA2E1A73CFJ#BA0, 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 R7FA2E1A73CFJ#BA0 part is unused and in its original packaging.
Return procedure for R7FA2E1A73CFJ#BA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R7FA2E1A73CFJ#BA0 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…
