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Renesas R7FA0E1053CNK#BA0
- Part No.:
- R7FA0E1053CNK#BA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 24-WFQFN Exposed Pad
- Datasheet:
-
R7FA0E1053CNK#BA0.pdf
- Description:
- MCU RA0E1 ARM CM23 32MHZ 32K/12K
- Quantity:
- Payment:
- Shipping:
Inventory:2,267
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Product details
Overview
R7FA0E1053CNK#BA0 from Renesas is an ultra-low-power 32-bit Arm® Cortex®-M23 microcontroller in a 24-pin HWQFN (5 mm × 5 mm) package, operating up to 32 MHz with 32-KB code flash, 12-KB SRAM, and integrated 12-bit ADC. It supports UART, SPI, I²C, LIN-bus, RTC, and safety features including SRAM parity, IWDT, and CRC - deployed in battery-powered industrial sensors and smart metering endpoints.
For engineers reviewing the R7FA0E1053CNK#BA0 datasheet, R7FA0E1053CNK#BA0 pinout, R7FA0E1053CNK#BA0 application, or R7FA0E1053CNK#BA0 equivalent, key selection criteria include its 24-pin HWQFN footprint, 32-KB flash capacity, -40°C to +105°C extended temperature range, and support for LIN-bus communication and hardware-based safety diagnostics.
Technical Context
The R7FA0E1053CNK#BA0 implements the Armv8-M architecture with TrustZone®-enabled security extensions and executes instructions at up to 32 MHz using HOCO/MOCO/LOCO clock sources. Its memory subsystem includes 32-KB code flash with read protection, 1-KB data flash (1M program/erase cycles), and 12-KB parity-protected SRAM.
Peripheral integration centers on the Serial Array Unit (SAU) supporting three simplified SPI, three simplified I²C, and two UART channels - one of which supports LIN-bus physical layer compliance. Safety is enforced via independent watchdog timer (IWDT), illegal memory access detection, register write protection, and ADC self-diagnosis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M23 (Armv8-M), 32 MHz max - enables deterministic real-time control with TrustZone security isolation. |
| Memory | 32-KB code flash + 1-KB data flash + 12-KB SRAM with parity - sufficient for firmware + parameter storage + runtime variables in constrained-edge devices. |
| Analog | 12-bit ADC with 6 input channels + on-die temperature sensor - supports precision sensor interfacing without external signal conditioning. |
| Timers | Eight 16-bit TAU timers + one 32-bit interval timer (TML32) - provides flexible PWM generation, capture/compare, and high-resolution timing for motor control or power management. |
| Communication | SAU (3× SPI, 3× I²C, 2× UART, 1× LIN), UARTA, IICA - enables multi-protocol connectivity to sensors, displays, and legacy automotive networks. |
| Safety & Security | IWDT, CRC calculator (CRC-CCITT/CRC-32), SRAM parity, flash area protection, GPIO readback - meets IEC 61508 SIL2 functional safety requirements for industrial control. |
| Power & Temp | 1.6–5.5 V supply, -40°C to +105°C operation - suitable for wide-input industrial power rails and harsh ambient environments. |
Pinout & Package
Package: 24-pin HWQFN (5 mm × 5 mm, 0.5 mm pitch) with exposed die pad (recommended electrically open).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Primary power domain; decoupling capacitor required at VCC–VSS per datasheet layout guidelines. |
| X1 / X2 / XCIN / XCOUT | Crystal oscillator interface | Supports 32.768 kHz sub-clock (RTC) and 1–20 MHz main crystal; X2 doubles as EXCLK for external clock injection. |
| SWDIO / SWCLK | Serial Wire Debug interface | Two-pin debug port enabling full JTAG/SWD programming, trace, and real-time debugging without dedicated reset line. |
| RES | Reset input | Active-low asynchronous reset; internal pull-up ensures reliable startup when external RC network is used. |
| P200–P215, P008–P015, P100–P112, P300, P407, P913–P914 | General-purpose I/O | 20 total I/O pins (12 I/O, 1 input-only, 12 pull-up, 11 N-ch open-drain, 2x 5-V tolerant) - configurable for peripheral multiplexing or direct GPIO control. |
| AN000–AN005, AN021–AN022 | Analog inputs | 6-channel ADC input mapping (including temperature sensor output) - referenced to VREFH0/VREFL0 for ratiometric accuracy. |
| RTCOUT | Real-time clock output | 1-Hz square wave output for system wake-up or timekeeping synchronization without CPU intervention. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | Multiple low-power modes (Sleep, Deep Sleep, Software Standby) with sub-μA current draw - extends battery life in wireless sensor nodes beyond 10 years. |
| Hardware safety monitoring | IWDT running on LOCO clock + SRAM parity error detection + illegal memory access trap - ensures fail-safe recovery even during voltage brownout or software fault. |
| Integrated LIN-bus support | Dedicated UART channel with LIN physical layer timing compliance (ISO 17987-4) - eliminates need for external transceiver in automotive body electronics. |
| On-chip oscillators | HOCO (24/32 MHz), MOCO (4 MHz), LOCO (32.768 kHz) with trimming - removes external crystals for cost-sensitive applications while maintaining ±1% frequency accuracy. |
| Event-driven processing | Event Link Controller (ELC) + Data Transfer Controller (DTC) - enables autonomous peripheral-to-peripheral data movement without CPU involvement, reducing active time by >40%. |
Applications
| Industrial Sensor Node | Smart Energy Meter |
|---|---|
Use Scenario: Battery-powered environmental monitor measuring temperature, humidity, and air quality in remote locations. IC Role / Device Role / Timing Role: Main controller executing sensor fusion, data logging, and LoRaWAN packet assembly; RTC maintains accurate timestamping across sleep cycles. Use Value: 12-KB SRAM retains buffered measurements during deep-sleep; 32-KB flash accommodates secure OTA update stack and application logic. | Use Scenario: Residential electricity meter with tamper detection, pulse counting, and HAN communication. IC Role / Device Role / Timing Role: System-on-chip managing metrology ADC sampling, tariff calculation, and I²C display interface; TAU timers generate precise 50/60 Hz zero-crossing interrupts. Use Value: Hardware CRC and flash protection prevent unauthorized firmware modification; 5-V tolerant I/O interfaces directly with legacy pulse-output meters. |
| Automotive Body Control | Medical Wearable |
Use Scenario: Door module controlling window lift, mirror adjustment, and interior lighting via LIN network. IC Role / Device Role / Timing Role: LIN master node coordinating slave ECUs; SAU UART channel handles ISO 17987-compliant physical layer signaling. Use Value: Integrated LIN support eliminates external transceiver; IWDT and register write protection ensure ASIL-B compliance for non-safety-critical functions. | Use Scenario: Continuous glucose monitor with Bluetooth LE connectivity and onboard calibration algorithms. IC Role / Device Role / Timing Role: Signal processor acquiring analog biosensor data via 12-bit ADC; TRNG seeds cryptographic keys for BLE pairing. Use Value: Temperature sensor (TSN) compensates ADC gain drift; low-voltage detection (LVD) triggers graceful shutdown before battery depletion. |
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 I/O pins, same core/peripherals/flash/SRAM specs | Better suited for prototyping or designs requiring higher I/O count and easier hand-soldering | Select when board layout allows larger footprint and additional GPIOs are needed for expansion headers or test points. |
| R7FA0E1073CNK | Same 24-pin HWQFN package but with 64-KB code flash and identical peripherals | Required for applications needing larger firmware image (e.g., dual-bank OTA, advanced encryption stacks) | Choose when future firmware growth or secure boot partitioning mandates >32-KB flash capacity. |
Compared with R7FA0E1053CFJ, the R7FA0E1053CNK#BA0 saves PCB area and cost in space-constrained designs; versus R7FA0E1073CNK, it trades flash headroom for lower unit cost where firmware size is stable and verified.
Availability
R7FA0E1053CNK#BA0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart energy meters, and automotive body control modules requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R7FA0E1053CNK#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.
The RA0E1 Group targets cost-sensitive, ultra-low-power applications demanding functional safety and secure firmware execution - designed specifically for battery-operated edge devices where size, power, and certification readiness are critical.
FAQ
What is the maximum operating frequency of the R7FA0E1053CNK#BA0?
The R7FA0E1053CNK#BA0 operates at a maximum frequency of 32 MHz using its high-speed on-chip oscillator (HOCO). This speed is maintained across the full -40°C to +105°C temperature range and 1.6–5.5 V supply voltage, enabling deterministic real-time performance in industrial and automotive environments without external clock components.
Does the R7FA0E1053CNK#BA0 support LIN-bus communication?
Yes, the R7FA0E1053CNK#BA0 supports LIN-bus communication through one dedicated UART channel within its Serial Array Unit (SAU). This channel complies with ISO 17987-4 physical layer timing requirements, allowing direct connection to standard LIN transceivers without external timing compensation circuitry.
How many analog input channels does the R7FA0E1053CNK#BA0 ADC support?
The R7FA0E1053CNK#BA0 integrates a 12-bit successive approximation ADC (ADC12) with six usable analog input channels: AN000 to AN005 and AN021 to AN022. These channels support internal reference voltage and temperature sensor inputs, enabling simultaneous measurement of external signals and die temperature for thermal compensation.
What safety features are implemented in the R7FA0E1053CNK#BA0?
The R7FA0E1053CNK#BA0 includes SRAM parity error checking, independent watchdog timer (IWDT), flash area protection, ADC self-diagnosis, cyclic redundancy check (CRC) engine, illegal memory access detection, and register write protection. These features collectively support IEC 61508 SIL2 compliance for industrial control applications.
Is the R7FA0E1053CNK#BA0 pin-compatible with other RA0E1 family members?
The R7FA0E1053CNK#BA0 shares the same 24-pin HWQFN package (PWQN0024KG-A) and pin assignment with other RA0E1 variants in the NK suffix group, including R7FA0E1073CNK. Pin functions, I/O counts, and peripheral mappings are identical - enabling hardware reuse across flash-size variants without PCB redesign.
R7FA0E1053CNK#BA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 24-WFQFN Exposed Pad
- Series:
- RA0E1
- Packaging:
- Tray
- 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:
- 20
- 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 8x12b SAR
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7FA0E1053CNK#BA0 FAQ
1.How can I place an order for R7FA0E1053CNK#BA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA0E1053CNK#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 R7FA0E1053CNK#BA0 reliable?
The price and inventory of R7FA0E1053CNK#BA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA0E1053CNK#BA0 is usually 5 days.
3.What payment methods are accepted for R7FA0E1053CNK#BA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FA0E1053CNK#BA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FA0E1053CNK#BA0?
R7FA0E1053CNK#BA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FA0E1053CNK#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 R7FA0E1053CNK#BA0?
For technical support, including R7FA0E1053CNK#BA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA0E1053CNK#BA0 requirements.
6.How does Aetrix verify that R7FA0E1053CNK#BA0 is sourced from the original manufacturer or authorized distributors?
All R7FA0E1053CNK#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 R7FA0E1053CNK#BA0 meets industry standards.
7.What is the process for return or replacement of R7FA0E1053CNK#BA0?
All R7FA0E1053CNK#BA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA0E1053CNK#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 R7FA0E1053CNK#BA0 part is unused and in its original packaging.
Return procedure for R7FA0E1053CNK#BA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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