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Renesas R7FA2E1A93CFM#HA0
- Part No.:
- R7FA2E1A93CFM#HA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R7FA2E1A93CFM#HA0.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 64LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,079
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Product details
Overview
R7FA2E1A93CFM#HA0 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 R7FA2E1A93CFM#HA0 datasheet, R7FA2E1A93CFM#HA0 pinout, R7FA2E1A93CFM#HA0 application, or R7FA2E1A93CFM#HA0 equivalent, key selection criteria include its 32-pin LQFP package, -40°C to +105°C operating range, 1.6–5.5 V supply voltage, dual 5-V-tolerant I/O pins, and hardware-based safety features such as ADC self-diagnosis and register write protection.
Technical Context
The R7FA2E1A93CFM#HA0 implements the Armv8-M architecture with TrustZone®-enabled security extensions and supports debug via SW-DP with CoreSight MTB-M23 trace. Its clock system integrates five sources - MOSC, SOSC, HOCO (24/32 MHz), MOCO (4 MHz), and LOCO (32.768 kHz) - with trimming support for all on-chip oscillators.
Peripheral integration includes a Serial Array Unit (SAU) supporting three simplified SPI, three simplified I²C, two UART, and one LIN-capable UART; plus dedicated UARTA and IICA interfaces. The TAU timer array provides eight 16-bit channels, while the TML32 offers flexible 8-/16-/32-bit interval timing modes alongside RTC with alarm and 1-Hz output.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M23, Armv8-M architecture, 32 MHz max - enables secure, energy-efficient execution of real-time control firmware with TrustZone isolation. |
| Memory | 64-KB code flash (1,000,000 program/erase cycles), 1-KB data flash, 12-KB SRAM with parity - supports robust firmware updates and safe data logging in field-deployed devices. |
| Analog | 12-bit ADC12 with 10 selectable inputs, internal temperature sensor (TSN), VREFH0/VREFL0 reference pins - enables precision sensor signal acquisition without external references. |
| Safety Features | SRAM parity error detection, flash area protection, ADC self-diagnosis, IWDT, illegal memory access detection - meets IEC 61508 SIL2 and ISO 26262 ASIL-B readiness requirements. |
| Power & Temp | 1.6–5.5 V supply, -40°C to +105°C operation, low-power modes including deep sleep with RTC wake-up - suitable for unregulated battery and wide-temperature industrial environments. |
| Package | 32-pin LQFP (7 mm × 7 mm, 0.8 mm pitch), 26 general-purpose I/O pins, 2 × 5-V tolerant inputs - allows direct interface with legacy 5-V logic and simplifies PCB layout in space-constrained designs. |
Pinout & Package
Package: 32-pin LQFP (PLQP0032GB-A), 7 mm × 7 mm, 0.8 mm pitch, exposed pad not present.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Primary power domain; requires local 0.1-µF decoupling capacitor per VCC pin for stable core and analog operation. |
| P206/RES | Reset input | Active-low asynchronous reset; internal pull-up ensures defined state during power-up or brownout. |
| SWDIO / SWCLK | Debug interface | Two-pin Serial Wire Debug (SW-DP) for programming, real-time tracing, and non-intrusive breakpoints. |
| AN000–AN007, AN021–AN022 | Analog inputs | 10-channel ADC input set; includes internal temperature sensor output and reference voltage monitoring capability. |
| P913 / P914 | 5-V tolerant I/O | Direct interface with 5-V peripherals without level shifters; supports open-drain configuration for wired-AND bus applications. |
Key Features
| Feature | Design Value |
|---|---|
| True Random Number Generator (TRNG) | Hardware entropy source compliant with NIST SP 800-90B, enabling FIPS-compliant cryptographic key generation for secure boot and OTA updates. |
| Event Link Controller (ELC) | Hardware-triggered peripheral chaining without CPU intervention - reduces latency and power in sensor-to-memory or timer-to-ADC workflows. |
| Data Transfer Controller (DTC) | DMA-like peripheral-to-memory transfers triggered by interrupts - offloads CPU during high-frequency ADC sampling or UART streaming. |
| Realtime Clock (RTC) | Full calendar (year/month/day/hour/minute/second), programmable alarms, and 1-Hz output pin - eliminates need for external RTC IC in time-stamped logging applications. |
| Low-Voltage Detection (LVD) | Dual independent detectors (LVD0/LVD1) with configurable thresholds - enables graceful shutdown or safe state entry before brownout-induced corruption. |
Applications
| Smart Utility Metering | Industrial Sensor Node |
|---|---|
Use Scenario: Battery-powered gas/water meter with pulse counting, temperature compensation, and wireless telemetry. IC Role / Device Role / Timing Role: Main controller executing metrology algorithms, managing RF module timing via ELC-synchronized UART, and maintaining accurate time stamps using RTC. Use Value: 64-KB flash stores multi-year firmware updates; 12-bit ADC resolves sub-degree temperature drift; IWDT and CRC ensure measurement integrity over 15+ year deployments. | Use Scenario: Wireless vibration sensor node mounted on rotating machinery, sampling accelerometer data every 10 ms. IC Role / Device Role / Timing Role: Real-time data acquisition unit triggering ADC conversions via TAU timers, buffering samples in SRAM, and transmitting batches via SAU-based UART. Use Value: DTC automates ADC-to-SRAM transfers, reducing CPU load by >70%; low-power modes extend 2-AA battery life beyond 3 years; TSN monitors die temperature for thermal derating. |
| Home Energy Monitor | Medical Wearable |
Use Scenario: Plug-in residential energy monitor measuring current/voltage harmonics and computing real-time power metrics. IC Role / Device Role / Timing Role: Signal processing hub interfacing isolated current sensors via ADC12, calculating RMS and THD in firmware, and displaying results on segmented LCD. Use Value: 12-KB SRAM buffers waveform samples for FFT computation; 5-V tolerant I/O connects directly to optocoupler-isolated analog front-end; flash read protection secures calibration data. | Use Scenario: Disposable glucose patch with continuous sensing, Bluetooth LE transmission, and end-of-life battery warning. IC Role / Device Role / Timing Role: Safety-critical subsystem managing sensor biasing, ADC conversion sequencing, and fault detection before BLE packet transmission. Use Value: ADC self-diagnosis validates analog path integrity before each reading; SRAM parity prevents corrupted glucose calculations; TRNG seeds BLE encryption keys for HIPAA-compliant data transfer. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FA2E1A93CNH | Same RA0E1 core, identical peripherals and memory, but in 32-pin HWQFN (5 mm × 5 mm, 0.5 mm pitch) package. | Requires PCB redesign due to different footprint and thermal pad; better suited for high-density layouts with automated reflow. | Select when board space is constrained and QFN assembly is available; verify thermal performance under full peripheral load. |
| R7FA2E1A93CNK | Same RA0E1 core and safety features, but 24-pin HWQFN package with reduced I/O count (20 pins vs. 26) and fewer ADC channels (8 vs. 10). | Limited analog and digital I/O restricts use to simpler sensor nodes without multi-channel conditioning or LIN bus support. | Choose for cost-sensitive, minimal-feature endpoints where LIN and full ADC channel count are unnecessary. |
Compared with R7FA2E1A93CNH and R7FA2E1A93CNK, the R7FA2E1A93CFM#HA0 provides the largest I/O count and full ADC channel complement in the LQFP package, making it optimal for prototyping, manual assembly, and applications requiring 5-V tolerant signaling without footprint compromise.
Availability
R7FA2E1A93CFM#HA0 is available at Aetrix Electronics and suitable for smart metering, industrial IoT sensor nodes, home energy monitors, and medical wearables requiring stable component supply across long product lifecycles.
Supply support for R7FA2E1A93CFM#HA0 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 automotive, industrial, and IoT markets.
The RA0E1 group is designed for cost-sensitive, ultra-low-power applications demanding functional safety and security - targeting battery-operated endpoints where longevity, reliability, and certification readiness are critical.
FAQ
What is the maximum operating frequency of the R7FA2E1A93CFM#HA0?
The R7FA2E1A93CFM#HA0 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 an external crystal resonator. Frequency scaling is supported via clock dividers, and the device maintains full peripheral functionality across all supported clock configurations specified in the R01DS0427EJ0120 datasheet.
Does the R7FA2E1A93CFM#HA0 support hardware-based security features?
Yes, the R7FA2E1A93CFM#HA0 includes a True Random Number Generator (TRNG) compliant with NIST SP 800-90B, flash read protection (FRP), register write protection (PRCR), and secure boot support via option-setting memory. These features enable secure firmware authentication, encrypted key storage, and tamper-resistant operation - essential for R7FA2E1A93CFM#HA0 deployments in regulated medical or utility infrastructure.
How many analog input channels does the R7FA2E1A93CFM#HA0 ADC support?
The R7FA2E1A93CFM#HA0 integrates a 12-bit successive approximation ADC (ADC12) with up to 10 selectable analog input channels: AN000 through AN007, plus AN021 and AN022. It also supports internal sources including the on-die temperature sensor (TSN) and internal reference voltage, all accessible without external components - a confirmed capability documented in Table 1.8 and Figure 1.1 of the R01DS0427EJ0120 datasheet.
What safety certifications or features are built into the R7FA2E1A93CFM#HA0?
The R7FA2E1A93CFM#HA0 includes SRAM parity error checking, flash area protection, ADC self-diagnosis, cyclic redundancy check (CRC) engine, independent watchdog timer (IWDT), GPIO readback level detection, and illegal memory access detection. These features align with IEC 61508 SIL2 and ISO 26262 ASIL-B functional safety requirements - explicitly stated in the "Safety" section of the R01DS0427EJ0120 datasheet Rev.1.20.
What package type is used for the R7FA2E1A93CFM#HA0?
The R7FA2E1A93CFM#HA0 uses a 32-pin LQFP package (PLQP0032GB-A), measuring 7 mm × 7 mm with 0.8 mm pitch. This package is confirmed in Table 1.11 and Figure 1.3 of the R01DS0427EJ0120 datasheet, and supports 26 general-purpose I/O pins, including two 5-V tolerant inputs (P913 and P914), making it suitable for prototyping and industrial designs requiring robust signal interfacing.
R7FA2E1A93CFM#HA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- RA2E1
- Packaging:
- Tape & Reel (TR)
- 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:
- 53
- 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:
R7FA2E1A93CFM#HA0 FAQ
1.How can I place an order for R7FA2E1A93CFM#HA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA2E1A93CFM#HA0 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 R7FA2E1A93CFM#HA0 reliable?
The price and inventory of R7FA2E1A93CFM#HA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA2E1A93CFM#HA0 is usually 5 days.
3.What payment methods are accepted for R7FA2E1A93CFM#HA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FA2E1A93CFM#HA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FA2E1A93CFM#HA0?
R7FA2E1A93CFM#HA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FA2E1A93CFM#HA0 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 R7FA2E1A93CFM#HA0?
For technical support, including R7FA2E1A93CFM#HA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA2E1A93CFM#HA0 requirements.
6.How does Aetrix verify that R7FA2E1A93CFM#HA0 is sourced from the original manufacturer or authorized distributors?
All R7FA2E1A93CFM#HA0 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 R7FA2E1A93CFM#HA0 meets industry standards.
7.What is the process for return or replacement of R7FA2E1A93CFM#HA0?
All R7FA2E1A93CFM#HA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA2E1A93CFM#HA0, 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 R7FA2E1A93CFM#HA0 part is unused and in its original packaging.
Return procedure for R7FA2E1A93CFM#HA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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