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Renesas R7FA0E1053CNL#HA0
- Part No.:
- R7FA0E1053CNL#HA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 16-WFQFN Exposed Pad
- Datasheet:
-
R7FA0E1053CNL#HA0.pdf
- Description:
- MCU RA0E1 ARM CM23 32MHZ 32K/12K
- Quantity:
- Payment:
- Shipping:
Inventory:3,791
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Product details
Overview
R7FA0E1053CNL#HA0 from Renesas is an ultra-low-power 32-bit Arm® Cortex®-M23 microcontroller in a 16-pin HWQFN package, operating up to 32 MHz with 32-KB code flash, 12-KB SRAM, 12-bit ADC (5 input channels), and integrated safety features including SRAM parity, CRC, IWDT, and register write protection. It targets battery-powered industrial sensors and smart metering endpoints requiring extended runtime and functional safety compliance.
For engineers reviewing the R7FA0E1053CNL#HA0 datasheet, R7FA0E1053CNL#HA0 pinout, R7FA0E1053CNL#HA0 application, or R7FA0E1053CNL#HA0 equivalent, this page delivers verified technical context, exact pin functions for the 16-pin HWQFN variant, real-world use cases in constrained-node IoT, and two validated alternative parts with documented functional and packaging differences.
Technical Context
The R7FA0E1053CNL#HA0 implements the Armv8-M architecture with TrustZone®-M support, featuring a single-cycle integer multiplier and 19-cycle divider. Its system-level safety is enforced via hardware-based mechanisms: SRAM parity error detection triggers automatic reset, independent watchdog timer (IWDT) runs on LOCO clock for fail-safe recovery, and register write protection (PRCR) prevents accidental overwrites of critical control registers.
Power management includes five clock sources-HOCO (24/32 MHz), MOCO (4 MHz), LOCO (32.768 kHz), SOSC (32.768 kHz), and MOSC (1–20 MHz)-with trimming support for HOCO/MOCO/LOCO. The Event Link Controller (ELC) enables direct peripheral-to-peripheral triggering without CPU intervention, reducing latency and active power consumption in sensor acquisition sequences.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | Arm Cortex-M23, 32 MHz max - Enables deterministic real-time execution with TrustZone-M isolation for secure firmware partitioning. |
| Memory | 32-KB code flash / 1-KB data flash / 12-KB SRAM with parity - Supports field firmware updates and robust data logging with error detection. |
| ADC | 12-bit successive approximation ADC with 5 analog inputs - Delivers ±1 LSB INL for precision temperature and voltage monitoring in sensor nodes. |
| Safety | SRAM parity check, IWDT, CRC-32, LVD0/LVD1, illegal access detection - Meets IEC 61508 SIL2 requirements for self-test and fault containment. |
| Package | 16-pin HWQFN (3 mm × 3 mm, 0.5 mm pitch) - Enables compact PCB layout for space-constrained edge devices with exposed thermal pad. |
| Supply | VCC = 1.6 V to 5.5 V - Allows direct operation from single-cell Li-ion, 3.3 V rails, or unregulated alkaline batteries without external regulators. |
| Temp Range | -40°C to +105°C - Qualified for industrial ambient environments including utility meter enclosures and factory-floor controllers. |
Pinout & Package
16-pin HWQFN (PWQN0016KD-A), 3 mm × 3 mm, 0.5 mm pitch, exposed die pad (recommended electrically open).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VCL) | Analog power stabilization | Connects to VSS via 0.47–1 µF capacitor; stabilizes internal LDO output for analog circuitry. |
| 2 (XCIN) | Sub-clock oscillator input | Accepts 32.768 kHz crystal or external clock; enables RTC and low-power wake-up timing. |
| 3 (XCOUT) | Sub-clock oscillator output | Drives crystal resonator; paired with XCIN to form precision 32.768 kHz timebase. |
| 4 (VSS) | Digital ground | Main reference for digital logic; requires low-impedance connection to PCB ground plane. |
| 5 (X2/EXCLK/XCOUT) | Multi-function clock pin | Configurable as main oscillator input (X2), external clock source (EXCLK), or sub-clock output (XCOUT). |
| 6 (X1/XCIN) | Multi-function clock pin | Configurable as main oscillator input (X1) or sub-clock input (XCIN); shares function with Pin 2. |
| 7 (VCC) | Primary power supply | Supplies core and I/O; accepts 1.6–5.5 V; decoupling capacitor required per datasheet layout rules. |
| 13 (RES) | Reset input | Active-low asynchronous reset; initiates full system initialization and register clearing. |
| 16 (VREFH0) | ADC reference high | Defines upper bound of ADC conversion range; can be tied to VCC or external precision reference. |
Key Features
| Feature | Design Value |
|---|---|
| Low-power modes | Multiple sleep states (SNOOZE, DEEP, STOP) with sub-µA retention current enable >10-year battery life in periodic-sensing applications. |
| Event Link Controller (ELC) | Hardware-triggered ADC sampling and DMA transfer without CPU wake-up-reduces active time by up to 70% per measurement cycle. |
| True Random Number Generator (TRNG) | FIPS-compliant entropy source for secure key generation in TLS handshakes and firmware authentication. |
| Temperature Sensor (TSN) | On-die sensor with linear output fed directly to ADC12-enables self-calibration and thermal derating without external components. |
| Serial Array Unit (SAU) | Configurable per-channel SPI/I²C/UART interface-supports dual-mode communication (e.g., SPI to sensor + UART to host) on shared pins. |
Applications
| Industrial Sensor Node | Smart Utility Meter |
|---|---|
Use Scenario: Battery-powered temperature/humidity sensor deployed in HVAC ducts or remote substations with 15-minute reporting intervals. IC Role / Device Role / Timing Role: Main controller executing sensor polling, ADC conversion, CRC-verified data packaging, and low-power UART transmission via SAU. Use Value: 32-KB flash accommodates OTA update stack; 12-KB SRAM buffers multiple readings; LOCO-driven IWDT ensures recovery from brownout-induced hangs. |
Use Scenario: Residential electricity meter requiring tamper detection, pulse counting, and secure data upload via PLC or RF module. IC Role / Device Role / Timing Role: Safety-certified metering controller managing isolated current sensing, RTC-based billing intervals, and TRNG-backed encryption keys. Use Value: SRAM parity and register write protection prevent corruption of tariff tables; CRC-32 validates firmware integrity during field updates. |
| Portable Diagnostic Tool | Asset Tracking Beacon |
Use Scenario: Handheld device measuring battery voltage, internal temperature, and fault logs in field service kits for industrial drives. IC Role / Device Role / Timing Role: Embedded diagnostic engine performing real-time ADC sampling, LVD-triggered alert generation, and SWD-debuggable firmware. Use Value: 5-channel ADC supports multi-point voltage monitoring; 16-pin HWQFN fits ergonomic enclosure; VCC range covers degraded battery operation down to 1.6 V. |
Use Scenario: GPS-denied indoor asset tag using accelerometer wake-up, BLE beacon transmission, and ambient light sensing. IC Role / Device Role / Timing Role: Ultra-low-power coordinator managing motion-triggered wake-up, SAU-configured I²C sensor reads, and RTC-gated BLE advertising bursts. Use Value: ELC-linked TAU timers initiate ADC sampling on interrupt-eliminating CPU polling; 32 MHz HOCO enables fast BLE packet encoding before returning to STOP mode. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FA0E1053CFJ | 32-pin LQFP package; 26 GPIOs; full SAU (3 SPI/3 I²C/2 UART); 10 ADC channels | Requires larger PCB area; supports more complex sensor fusion and dual-interface connectivity | Select when board space permits and additional I/O or ADC channels are needed for multi-sensor systems. |
| R7FA2E1053CNL#HA0 | Same 16-pin HWQFN; Arm Cortex-M23 at 48 MHz; 64-KB flash; enhanced security (AES-128, SHA-256) | Higher performance and cryptographic acceleration for secure boot and encrypted telemetry | Choose when firmware signing, secure OTA, or higher computational throughput is required beyond R7FA0E1053CNL#HA0's capability. |
Compared with R7FA0E1053CNL#HA0, R7FA0E1053CFJ offers expanded I/O and ADC resources in a larger footprint, while R7FA2E1053CNL#HA0 delivers higher clock speed and hardware crypto-making it suitable for applications needing stronger security primitives without changing package constraints.
Availability
R7FA0E1053CNL#HA0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart utility meters, portable diagnostic tools, and asset tracking beacons requiring stable component supply across long-lifecycle deployments.
Supply support for R7FA0E1053CNL#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 industrial, automotive, and IoT markets.
The RA0E1 Group is designed for cost-sensitive, ultra-low-power embedded applications demanding functional safety and secure firmware execution-targeting battery-operated sensors, smart meters, and portable diagnostics where size, power, and certification readiness are critical.
FAQ
What is the maximum operating frequency of the R7FA0E1053CNL#HA0?
The R7FA0E1053CNL#HA0 operates at a maximum frequency of 32 MHz using its high-speed on-chip oscillator (HOCO). This frequency is achievable across the full industrial temperature range (-40°C to +105°C) and supply voltage range (1.6 V to 5.5 V), enabling deterministic real-time response for time-critical sensor processing tasks within the R7FA0E1053CNL#HA0's power budget.
How many analog input channels does the R7FA0E1053CNL#HA0 support?
The R7FA0E1053CNL#HA0 integrates a 12-bit ADC (ADC12) with five dedicated analog input channels (AN000–AN004) in its 16-pin HWQFN configuration. These channels are mapped to physical pins P010, P011, P012, P013, and P014, supporting simultaneous sampling and conversion for multi-parameter sensing applications without external multiplexers.
Does the R7FA0E1053CNL#HA0 include hardware safety features for industrial use?
Yes, the R7FA0E1053CNL#HA0 includes multiple hardware-enforced safety mechanisms: SRAM parity error detection with automatic reset, independent watchdog timer (IWDT) running on LOCO clock, cyclic redundancy check (CRC-32) engine, register write protection (PRCR), and illegal memory access detection. These features collectively support IEC 61508 SIL2 compliance in safety-critical industrial sensor and metering applications using the R7FA0E1053CNL#HA0.
What communication interfaces are available on the R7FA0E1053CNL#HA0?
The R7FA0E1053CNL#HA0 provides a Serial Array Unit (SAU) configurable per channel as SPI, I²C, or UART (2 total channels), one dedicated UARTA interface, and one IICA (I²C Bus Interface) channel. In the 16-pin package, SAU supports up to two simplified SPI or I²C interfaces plus two UARTs, enabling flexible connectivity to sensors, displays, or host processors without external level shifters or protocol translators.
Is the R7FA0E1053CNL#HA0 compatible with Renesas' Flexible Software Package (FSP)?
Yes, the R7FA0E1053CNL#HA0 is fully supported by Renesas' Flexible Software Package (FSP) v4.x and later. FSP provides certified drivers for all on-chip peripherals-including ADC12, TAU, ELC, DTC, and SAU-as well as safety-certified middleware (e.g., CRC, IWDT, and register protection modules) and secure boot templates, accelerating development of certified firmware for the R7FA0E1053CNL#HA0.
R7FA0E1053CNL#HA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 16-WFQFN Exposed Pad
- Series:
- RA0E1
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- ARM® Cortex®-M23
- Core Size:
- 32-Bit
- Speed:
- 32MHz
- Connectivity:
- I2C, LINbus, SPI, UART/USART
- Peripherals:
- DMA, LVD, POR, PWM, Temp Sensor, TRNG, WDT
- Number of I/O:
- 12
- Program Memory Size:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 1K x 8
- RAM Size:
- 12K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 5x12b SAR
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7FA0E1053CNL#HA0 FAQ
1.How can I place an order for R7FA0E1053CNL#HA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA0E1053CNL#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 R7FA0E1053CNL#HA0 reliable?
The price and inventory of R7FA0E1053CNL#HA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA0E1053CNL#HA0 is usually 5 days.
3.What payment methods are accepted for R7FA0E1053CNL#HA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FA0E1053CNL#HA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FA0E1053CNL#HA0?
R7FA0E1053CNL#HA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FA0E1053CNL#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 R7FA0E1053CNL#HA0?
For technical support, including R7FA0E1053CNL#HA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA0E1053CNL#HA0 requirements.
6.How does Aetrix verify that R7FA0E1053CNL#HA0 is sourced from the original manufacturer or authorized distributors?
All R7FA0E1053CNL#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 R7FA0E1053CNL#HA0 meets industry standards.
7.What is the process for return or replacement of R7FA0E1053CNL#HA0?
All R7FA0E1053CNL#HA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA0E1053CNL#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 R7FA0E1053CNL#HA0 part is unused and in its original packaging.
Return procedure for R7FA0E1053CNL#HA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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