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Renesas R7FA2E3072DNH#BA0
- Part No.:
- R7FA2E3072DNH#BA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 32-WFQFN Exposed Pad
- Datasheet:
-
R7FA2E3072DNH#BA0.pdf
- Description:
- MCU RA2E3 ARM CM23 48MHZ 64K/16K
- Quantity:
- Payment:
- Shipping:
Inventory:1,832
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Product details
Overview
R7FA2E3072DNH#BA0 from Renesas is an ultra-low-power 32-bit Arm® Cortex®-M23 microcontroller operating at up to 48 MHz, featuring 64-KB code flash, 16-KB SRAM, a 12-bit ADC with 13 input channels, and integrated safety functions including SRAM parity, flash protection, and CAC for clock accuracy monitoring-designed for battery-powered industrial sensors and smart metering endpoints.
For engineers reviewing the R7FA2E3072DNH#BA0 datasheet, R7FA2E3072DNH#BA0 pinout, R7FA2E3072DNH#BA0 application, or R7FA2E3072DNH#BA0 equivalent, key selection criteria include its 32-pin HWQFN package (5 mm × 5 mm, 0.5 mm pitch), -40°C to +85°C industrial temperature grade, 1.6–5.5 V wide supply range, and dual watchdog timers (WDT/IWDT) supporting functional safety compliance in constrained-edge devices.
Technical Context
The R7FA2E3072DNH#BA0 implements the Armv8-M architecture with Memory Protection Unit (MPU) supporting eight regions, enabling secure partitioning of firmware and data. Its system-level timing infrastructure includes three independent oscillators (HOCO/MOCO/LOCO), RTC with calendar mode, and Clock Frequency Accuracy Measurement Circuit (CAC) for real-time oscillator drift detection.
Peripheral integration centers on low-power responsiveness: Event Link Controller (ELC) enables CPU-free peripheral chaining, Data Transfer Controller (DTC) handles memory-to-peripheral transfers autonomously, and two AGT timers operate asynchronously in deep-sleep modes. The device supports four SCI interfaces-each configurable as UART, SPI, I²C, or smart card-with FIFO on SCI0 for robust serial communication.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | Arm Cortex-M23, 48 MHz max - delivers deterministic real-time control with TrustZone-ready security foundation |
| Memory | 64-KB code flash + 2-KB data flash + 16-KB SRAM - supports field firmware updates and parameter storage with 100k P/E cycles |
| Analog | 12-bit ADC12 with 10 selectable inputs - provides precision sensor signal acquisition across 1.6–5.5 V supply range |
| Safety | CAC, CRC calculator, DOC, IWDT, SRAM parity - enables ASIL-B–aligned diagnostics per ISO 26262 and IEC 61508 |
| Package | 32-pin HWQFN (5 mm × 5 mm, 0.5 mm pitch) - compact footprint optimized for space-constrained PCB layouts |
| Temp Range | -40°C to +85°C - qualified for industrial ambient environments without derating |
| I/O Count | 23 general-purpose I/O pins - includes 15 N-ch open-drain outputs and 1 five-volt-tolerant pin for mixed-voltage interfacing |
Pinout & Package
Package: 32-pin HWQFN (PWQN0032KE-A), 5 mm × 5 mm body, 0.5 mm pitch, exposed thermal pad (soldered to non-electrical PCB copper area).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dual power domains: VCC powers digital logic; AVCC0/AVSS0 required for ADC operation - decoupling capacitors mandatory per datasheet |
| P010 / P011 | VREFH0 / VREFL0 | ADC reference voltage inputs - must be tied to AVCC0/AVSS0 if internal reference used; enables ratiometric measurement accuracy |
| P212 / P213 | EXTAL / XTAL | Main crystal oscillator interface - supports 1–20 MHz crystals for precise timing; optional external clock input on EXTAL |
| P214 / P215 | XCOUT / XCIN | Sub-clock oscillator interface - connects 32.768 kHz crystal for RTC/calendar timekeeping with battery backup capability |
| P108 / P300 | SWDIO / SWCLK | Serial Wire Debug interface - enables full JTAG/SWD debugging, programming, and trace without additional pins |
| P000–P002, P010–P015, etc. | GPIO | 23 programmable I/O pins - support pull-up, open-drain, 5-V tolerance (P407 only), and configurable drive strength for noise immunity |
Key Features
| Feature | Design Value |
|---|---|
| Low-power operation | Multiple sleep modes with sub-μA retention current; AGT timers active during deep-sleep - extends battery life in wireless sensor nodes |
| Hardware safety acceleration | Dedicated CRC calculator with snoop function and DOC for 16-bit arithmetic comparison - offloads CPU for runtime integrity checks |
| Flexible clock management | HOCO trimmable ±2% over temperature/voltage; CAC validates oscillator accuracy against sub-clock reference - eliminates need for external calibration |
| Peripheral autonomy | ELC links SCI, GPT, and ADC events without CPU intervention; DTC moves data between memory and peripherals - reduces active CPU time by >40% in polling-heavy tasks |
| Robust communication | SCI0 with FIFO and independent baud rate generator; four SCI modules supporting UART, SPI, I²C, and ISO 7816 smart card - simplifies multi-protocol gateway design |
Applications
| Industrial Sensor Node | Smart Utility Meter |
|---|---|
Use Scenario: Battery-powered temperature/humidity sensor transmitting data via LoRaWAN every 15 minutes. IC Role / Device Role / Timing Role: Main controller executing sensor readout, ADC conversion, data encryption, and radio wake-up scheduling using AGT timers and ELC-triggered DTC transfers. Use Value: 23 GPIOs interface multiple analog/digital sensors; 1.6–5.5 V operation supports aging primary cells; CAC ensures accurate RTC-based transmission timing over battery voltage decay. | Use Scenario: Electricity meter with tamper detection, pulse counting, and RS-485 communication to concentrator. IC Role / Device Role / Timing Role: System-on-chip managing metrology ADC sampling, optical pulse capture via KR00–KR04, and isolated RS-485 SCI interface with hardware flow control. Use Value: 10-channel ADC measures voltage/current with internal reference; IWDT+SRAM parity meets IEC 62056 safety requirements; 5-V-tolerant P407 drives optocoupler enable lines directly. |
| Home Automation Hub | Asset Tracking Module |
Use Scenario: Zigbee/Z-Wave bridge aggregating BLE sensor data and forwarding to cloud via Wi-Fi MCU. IC Role / Device Role / Timing Role: Protocol translation engine using four SCI interfaces - one for BLE UART, one for Zigbee UART, one for debug console, one for Wi-Fi AT command channel. Use Value: Four independent SCI modules eliminate software UART overhead; 64-KB flash hosts dual protocol stacks; RTC maintains accurate time sync across network disconnects. | Use Scenario: GPS tracker logging location every 5 minutes and transmitting via NB-IoT when motion detected. IC Role / Device Role / Timing Role: Low-power state manager triggering GPS/NB-IoT activation via GPT16 PWM wakeup, reading accelerometer via I²C, and storing logs in data flash. Use Value: 2-KB data flash endures 100k write cycles for frequent log updates; AGT timers measure motion duration in sleep mode; wide 1.6–5.5 V range accommodates Li-SOCl₂ primary cells. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FA2E3072DFJ | LQFP-32 package (7 mm × 7 mm, 0.8 mm pitch); identical electrical specs and peripherals | Requires larger PCB footprint and different reflow profile; better thermal dissipation but less dense layout | Select for prototyping ease or legacy LQFP assembly lines where QFN reflow is unavailable |
| R7FA2E3052DNH | 32-KB code flash (vs. 64 KB); same 32-pin HWQFN package, temp grade, and peripheral set | Suitable for simpler firmware with no OTA update requirement or complex protocol stacks | Choose when BOM cost reduction is critical and application firmware fits within 32 KB with margin |
Compared with R7FA2E3072DFJ and R7FA2E3052DNH, the R7FA2E3072DNH#BA0 uniquely balances compact QFN packaging, full 64-KB flash headroom for future feature expansion, and industrial-grade reliability-making it optimal for production deployments where board area, long-term firmware scalability, and supply chain continuity are jointly prioritized.
Availability
R7FA2E3072DNH#BA0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart utility meters, home automation hubs, and asset tracking modules requiring stable component supply across multi-year production cycles.
Supply support for R7FA2E3072DNH#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 delivering trusted embedded solutions for automotive, industrial, infrastructure, and IoT markets, with deep expertise in microcontrollers, analog, and power management.
The RA2E3 Group targets cost-sensitive, ultra-low-power applications demanding functional safety and seamless scalability-designed to accelerate development of certified edge devices with minimal external components and simplified certification paths.
FAQ
What is the maximum operating frequency of the R7FA2E3072DNH#BA0?
The R7FA2E3072DNH#BA0 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 +85°C temperature grade, supported by the high-speed on-chip oscillator (HOCO) with trimmable accuracy. All timing-critical peripherals-including GPT32, SCI baud generation, and ADC sampling-scale deterministically with this clock.
Does the R7FA2E3072DNH#BA0 support hardware-based functional safety features?
Yes, the R7FA2E3072DNH#BA0 integrates multiple hardware safety mechanisms: SRAM parity error detection, flash area protection registers, ADC self-diagnosis, Clock Frequency Accuracy Measurement Circuit (CAC), Cyclic Redundancy Check (CRC) calculator with snoop, Data Operation Circuit (DOC), Independent Watchdog Timer (IWDT), and register write protection. These features collectively support diagnostic coverage required for IEC 61508 SIL-2 and ISO 26262 ASIL-B compliance when implemented per Renesas Functional Safety Manual.
How many analog input channels does the ADC12 support on the R7FA2E3072DNH#BA0?
The R7FA2E3072DNH#BA0's 12-bit ADC12 supports 10 selectable analog input channels (AN000, AN001, AN002, AN005–AN010). This count is specific to the 32-pin HWQFN variant (R7FA2E3072DNH#BA0); the 48-pin variants support up to 13 channels. Inputs include dedicated temperature sensor and internal reference voltage routing, with configurable sample-and-hold timing and scan sequencing.
What debug interface does the R7FA2E3072DNH#BA0 provide?
The R7FA2E3072DNH#BA0 provides Serial Wire Debug (SWD) via dedicated SWDIO (P108) and SWCLK (P300) pins, compliant with ARM CoreSight™ MTB-M23 and SW-DP standards. It supports full run-control debugging, real-time memory access, instruction trace, and flash programming without requiring additional pins or external debug adapters beyond standard SWD probes.
Is the R7FA2E3072DNH#BA0 pin-compatible with other RA2E3 family members?
The R7FA2E3072DNH#BA0 shares identical pin functions and electrical characteristics with other 32-pin RA2E3 variants (e.g., R7FA2E3052DNH, R7FA2E3072DFJ), but is not pin-compatible with 48-pin variants due to differing pin counts and assignments. Within the 32-pin HWQFN group, all share the PWQN0032KE-A package outline and signal mapping-enabling direct substitution where flash/SRAM requirements align.
R7FA2E3072DNH#BA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 32-WFQFN Exposed Pad
- Series:
- RA2E3
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- ARM® Cortex®-M23
- Core Size:
- 32-Bit
- Speed:
- 48MHz
- Connectivity:
- I2C, SCI, SPI, UART/USART
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 23
- Program Memory Size:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 2K x 8
- RAM Size:
- 16K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 10x12b SAR
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7FA2E3072DNH#BA0 FAQ
1.How can I place an order for R7FA2E3072DNH#BA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA2E3072DNH#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 R7FA2E3072DNH#BA0 reliable?
The price and inventory of R7FA2E3072DNH#BA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA2E3072DNH#BA0 is usually 5 days.
3.What payment methods are accepted for R7FA2E3072DNH#BA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FA2E3072DNH#BA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FA2E3072DNH#BA0?
R7FA2E3072DNH#BA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FA2E3072DNH#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 R7FA2E3072DNH#BA0?
For technical support, including R7FA2E3072DNH#BA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA2E3072DNH#BA0 requirements.
6.How does Aetrix verify that R7FA2E3072DNH#BA0 is sourced from the original manufacturer or authorized distributors?
All R7FA2E3072DNH#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 R7FA2E3072DNH#BA0 meets industry standards.
7.What is the process for return or replacement of R7FA2E3072DNH#BA0?
All R7FA2E3072DNH#BA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA2E3072DNH#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 R7FA2E3072DNH#BA0 part is unused and in its original packaging.
Return procedure for R7FA2E3072DNH#BA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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