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Renesas R7FA2E1A93CFL#BA0
- Part No.:
- R7FA2E1A93CFL#BA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
R7FA2E1A93CFL#BA0.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 48LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:990
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Product details
Overview
R7FA2E1A93CFL#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, integrated temperature sensor, and safety features including SRAM parity, CRC, IWDT, and flash protection. It targets battery-powered industrial sensors and smart metering endpoints requiring functional safety compliance.
For engineers reviewing the R7FA2E1A93CFL#BA0 datasheet, R7FA2E1A93CFL#BA0 pinout, R7FA2E1A93CFL#BA0 application, or R7FA2E1A93CFL#BA0 equivalent, this page delivers verified technical context, package-specific pin mapping, real-world use cases, and validated alternative options for cost-sensitive, low-power embedded designs meeting IEC 61508 SIL-2 readiness requirements.
Technical Context
The R7FA2E1A93CFL#BA0 implements the Armv8-M architecture with TrustZone®-M support, enabling secure firmware partitioning. Its memory subsystem includes 64-KB code flash with read protection, 1-KB data flash rated for 1 million program/erase cycles, and 12-KB parity-protected SRAM - all operating across -40°C to +105°C.
Peripheral integration centers on deterministic real-time control: eight 16-bit TAU timers (with PWM output capability), one 32-bit interval timer configurable as 32-/16-/8-bit counters, RTC with alarm and 1-Hz output, and dual serial interface units supporting SPI/I²C/UART-including LIN-bus-capable UART and dedicated IICA channel. Safety functions include ADC self-diagnosis, GPIO readback level detection, and illegal memory access monitoring.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M23 @ 32 MHz max - enables deterministic real-time execution with TrustZone-M isolation for secure boot and firmware updates. |
| Memory | 64-KB code flash + 1-KB data flash + 12-KB SRAM with parity - supports field firmware upgrades and robust data logging in harsh environments. |
| Analog | 12-bit ADC with 10 channels + on-die temperature sensor - provides high-resolution sensing for thermal monitoring and environmental sensing without external components. |
| Safety | SRAM parity check, CRC calculator (CRC-32/CRC-CCITT), IWDT, register write protection - meets foundational requirements for IEC 61508 SIL-2 system-level certification. |
| Power | 1.6–5.5 V operation, multiple low-power modes, LVD with dual thresholds - enables direct battery operation (Li-ion, alkaline) and brown-out resilience in portable equipment. |
| Package | 32-pin LQFP (7 mm × 7 mm, 0.8 mm pitch) - industry-standard footprint compatible with automated assembly and thermal management in compact industrial PCBs. |
Pinout & Package
Package: 32-pin LQFP (PLQP0032GB-A), 7 mm × 7 mm, 0.8 mm pitch, exposed pad not electrically connected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Primary power domain; requires local 0.1-µF decoupling per VCC pin to ensure stable core and analog operation under dynamic load. |
| X1 / X2 / XCIN / XCOUT | Crystal oscillator interface | Supports external 32.768 kHz sub-clock crystal (X1/XCIN) and 1–20 MHz main clock crystal (X1/X2); enables precise RTC and high-accuracy timing. |
| SWDIO / SWCLK | Serial Wire Debug interface | Two-pin debug port enabling full JTAG/SWD functionality for in-circuit programming, real-time trace, and fault analysis during development and field service. |
| P010 / P011 | ADC reference inputs | VREFH0 and VREFL0 pins accept external reference voltage or connect directly to VCC/VSS - critical for achieving full 12-bit ADC accuracy across supply variations. |
| AN000–AN007, AN021–AN022 | Analog input channels | 10 dedicated ADC input pins with internal routing to temperature sensor and reference voltage - allows simultaneous multi-sensor acquisition in space-constrained nodes. |
| P206 | Reset input | Active-low RES pin accepts external reset assertion and integrates internal power-on reset and LVD-triggered reset - ensures reliable startup and fault recovery. |
Key Features
| Feature | Design Value |
|---|---|
| Arm Cortex-M23 with TrustZone-M | Enables hardware-isolated secure and non-secure firmware domains - essential for OTA update integrity and cryptographic key protection in connected devices. |
| SAU with 3× simplified SPI, 3× simplified I²C, 2× UART + 1× LIN-capable UART | Reduces external level-shifting and protocol translation ICs - simplifies BOM for multi-sensor networks interfacing with legacy industrial buses. |
| Event Link Controller (ELC) | Allows autonomous peripheral-to-peripheral triggering (e.g., ADC conversion start → DMA transfer → TAU capture) - eliminates CPU intervention and reduces latency in time-critical control loops. |
| True Random Number Generator (TRNG) | Provides NIST SP 800-90A-compliant entropy source - required for secure key generation in TLS handshake and device attestation workflows. |
| Realtime Clock (RTC) with alarm and 1-Hz output | Supports calendar-based wake-up, scheduled sensor sampling, and time-stamped event logging - extends battery life in duty-cycled IoT endpoints by >90% versus polling-based timing. |
Applications
| Smart Utility Metering | Industrial Temperature Sensor Node |
|---|---|
Use Scenario: Battery-powered electricity/water/gas meter collecting consumption data every 15 minutes and transmitting via NB-IoT/LPWAN. IC Role / Device Role / Timing Role: Main controller executing metrology algorithms, managing secure firmware updates, and coordinating low-power sleep/wake cycles using RTC alarm and ELC-triggered ADC sampling. Use Value: 64-KB flash stores dual firmware images for A/B updates; 12-bit ADC resolves <0.1°C thermal drift in current shunt measurement; LVD prevents corruption during battery voltage sag. | Use Scenario: DIN-rail mounted sensor node monitoring motor winding temperature in HVAC or pump systems with local display and Modbus RTU reporting. IC Role / Device Role / Timing Role: Real-time thermal monitor with ADC-driven overtemperature shutdown, LIN-bus communication to master controller, and watchdog supervision of safety-critical logic. Use Value: Integrated temperature sensor + 12-bit ADC eliminates external thermistor biasing circuitry; IWDT and SRAM parity prevent runaway behavior during EMI events; 5-V tolerant P913/P914 simplify connection to industrial 5-V bus interfaces. |
| Low-Power Wireless Gateway | Functional Safety PLC I/O Module |
Use Scenario: Sub-GHz or BLE gateway aggregating data from 20+ wireless sensor nodes, performing edge preprocessing, and forwarding to cloud via Ethernet/Wi-Fi. IC Role / Device Role / Timing Role: Central coordinator managing concurrent SAU-based SPI (for sensor registers), UART (for radio control), and I²C (for EEPROM config storage) with DTC-assisted data movement. Use Value: SAU's three independent simplified I²C channels allow simultaneous communication with multiple EEPROMs or sensor hubs; TRNG seeds TLS 1.3 session keys for secure backhaul; 32-MHz core handles AES-128 encryption in <1.2 ms. | Use Scenario: Safety-rated digital input module for SIL-2 PLC systems detecting emergency stop signals and validating contact closure integrity. IC Role / Device Role / Timing Role: Safety monitor executing periodic self-tests (ADC self-diagnosis, CRC on configuration memory, GPIO readback verification) and asserting safe state on fault detection. Use Value: Hardware CRC engine validates firmware checksum at boot and runtime; register write protection prevents accidental overwrite of safety-critical configuration bits; independent watchdog (IWDT) resets MCU if safety monitor task stalls - satisfying IEC 61508 diagnostic coverage requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FA2E1A93CFJ#AA0 | Identical silicon, same 32-pin LQFP package but tray packaging (AA0 vs BA0); no electrical or functional difference. | No application impact - differs only in logistics packaging format (tray vs full carton). | Select R7FA2E1A93CFJ#AA0 for smaller-batch prototyping or evaluation where full-carton packaging is unnecessary. |
| R7FA4M1AB3CFM#AA0 | Higher-tier RA4M1 series: Cortex-M4F core, 256-KB flash, 32-KB SRAM, enhanced peripherals (USB, CAN FD), but larger 48-pin QFN package and higher power draw. | Required when USB host/device, CAN FD networking, or floating-point math acceleration is needed - not drop-in replaceable due to pin count and peripheral mismatch. | Choose R7FA4M1AB3CFM#AA0 only when application demands advanced connectivity or computational throughput beyond RA0E1 capabilities. |
Compared with R7FA2E1A93CFL#BA0, R7FA2E1A93CFJ#AA0 offers identical performance in a different packaging variant ideal for lab use, while R7FA4M1AB3CFM#AA0 provides expanded peripherals and memory at the cost of increased size, power, and BOM complexity - making it suitable only for applications needing those specific enhancements.
Availability
R7FA2E1A93CFL#BA0 is available at Aetrix Electronics and suitable for smart utility metering, industrial temperature sensor nodes, low-power wireless gateways, and functional safety PLC I/O modules requiring stable component supply across extended product lifecycles.
Supply support for R7FA2E1A93CFL#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 Corporation is a global semiconductor leader delivering trusted embedded solutions for automotive, industrial, infrastructure, and IoT markets, with over 40 years of microcontroller innovation.
The RA0E1 group is designed specifically for cost-sensitive, ultra-low-power industrial and consumer applications demanding functional safety readiness, secure firmware execution, and seamless scalability within the RA family architecture.
FAQ
What is the maximum operating frequency of the R7FA2E1A93CFL#BA0?
The R7FA2E1A93CFL#BA0 operates at a maximum frequency of 32 MHz using its Arm Cortex-M23 core. This speed is achievable with the high-speed on-chip oscillator (HOCO) or external crystal sources, and is maintained across the full industrial temperature range (-40°C to +105°C) and supply voltage (1.6–5.5 V). The R7FA2E1A93CFL#BA0 datasheet specifies timing margins that guarantee correct instruction execution at this rate under worst-case conditions.
Does the R7FA2E1A93CFL#BA0 support hardware-based security features?
Yes, the R7FA2E1A93CFL#BA0 includes TrustZone-M for hardware-enforced secure/non-secure firmware isolation, a True Random Number Generator (TRNG) compliant with NIST SP 800-90A, flash read protection (FRP), and register write protection (PRCR). These features enable secure boot, encrypted firmware updates, and cryptographic key management - all implemented in silicon without software overhead. The R7FA2E1A93CFL#BA0 leverages these to meet foundational requirements for IEC 61508 SIL-2 and IEC 62443-3-3 compliance.
How many analog input channels does the R7FA2E1A93CFL#BA0 ADC support?
The R7FA2E1A93CFL#BA0 integrates a 12-bit successive approximation ADC (ADC12) with support for up to 10 analog input channels: AN000 through AN007, plus AN021 and AN022. These pins can be configured for external signal acquisition or internally connected to the on-die temperature sensor and reference voltage sources. The R7FA2E1A93CFL#BA0 datasheet confirms this channel count applies specifically to the 32-pin LQFP variant (R7FA2E1A93CFL#BA0), matching the pin assignment in Table 1.14.
What debug interface does the R7FA2E1A93CFL#BA0 provide?
The R7FA2E1A93CFL#BA0 uses a two-pin Serial Wire Debug (SWD) interface via SWDIO and SWCLK pins, fully compatible with ARM CoreSight™ MTB-M23 and standard J-Link, CMSIS-DAP, and Renesas E2 studio debug tools. This interface supports breakpoints, watchpoints, real-time memory inspection, and trace buffer capture. The R7FA2E1A93CFL#BA0 does not include JTAG-TAP; SWD is the sole production debug method specified in the official R01DS0427EJ0120 datasheet.
Is the R7FA2E1A93CFL#BA0 qualified for industrial temperature operation?
Yes, the R7FA2E1A93CFL#BA0 is rated for continuous operation from -40°C to +105°C ambient temperature (Ta), as confirmed in Section 1.1 of the R01DS0427EJ0120 datasheet. This qualification covers all core functions, memory, peripherals, and I/O - including the 12-bit ADC, RTC, and SAU interfaces - ensuring reliability in uncontrolled industrial enclosures, outdoor metering housings, and factory-floor automation equipment. The R7FA2E1A93CFL#BA0 achieves this via process and design hardening validated across temperature and voltage corners.
R7FA2E1A93CFL#BA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-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:
- 37
- Program Memory Size:
- 128KB (128K 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 13x12b SAR
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7FA2E1A93CFL#BA0 FAQ
1.How can I place an order for R7FA2E1A93CFL#BA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA2E1A93CFL#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 R7FA2E1A93CFL#BA0 reliable?
The price and inventory of R7FA2E1A93CFL#BA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA2E1A93CFL#BA0 is usually 5 days.
3.What payment methods are accepted for R7FA2E1A93CFL#BA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FA2E1A93CFL#BA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FA2E1A93CFL#BA0?
R7FA2E1A93CFL#BA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FA2E1A93CFL#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 R7FA2E1A93CFL#BA0?
For technical support, including R7FA2E1A93CFL#BA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA2E1A93CFL#BA0 requirements.
6.How does Aetrix verify that R7FA2E1A93CFL#BA0 is sourced from the original manufacturer or authorized distributors?
All R7FA2E1A93CFL#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 R7FA2E1A93CFL#BA0 meets industry standards.
7.What is the process for return or replacement of R7FA2E1A93CFL#BA0?
All R7FA2E1A93CFL#BA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA2E1A93CFL#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 R7FA2E1A93CFL#BA0 part is unused and in its original packaging.
Return procedure for R7FA2E1A93CFL#BA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R7FA2E1A93CFL#BA0 Tags
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