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Renesas R7FA0E1073CSC#HA0
- Part No.:
- R7FA0E1073CSC#HA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 20-LSSOP (0.173", 4.40mm Width)
- Datasheet:
-
R7FA0E1073CSC#HA0.pdf
- Description:
- MCU RA0E1 ARM CM23 32MHZ 64K/12K
- Quantity:
- Payment:
- Shipping:
Inventory:1,429
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Product details
Overview
R7FA0E1073CSC#HA0 from Renesas is an ultra-low-power 32-bit Arm® Cortex®-M23 microcontroller in a 20-pin LSSOP package, operating up to 32 MHz with 64-KB code flash, 12-KB SRAM, and integrated 12-bit ADC, UARTA, IICA, SAU, RTC, and safety features including SRAM parity, IWDT, and CRC. It targets battery-powered industrial sensors and smart metering interfaces requiring extended runtime and functional safety.
For engineers reviewing the R7FA0E1073CSC#HA0 datasheet, R7FA0E1073CSC#HA0 pinout, R7FA0E1073CSC#HA0 application, or R7FA0E1073CSC#HA0 equivalent, this page delivers verified specifications, validated pin functions for the LSSOP-20 variant, confirmed safety architecture (SRAM parity, IWDT, register write protection), and real-world use cases in low-voltage sensor nodes and LIN-capable control modules.
Technical Context
The R7FA0E1073CSC#HA0 implements the Armv8-M architecture with TrustZone®-enabled security extensions, supporting secure boot and isolated execution environments. Its system-level timing relies on multiple clock sources: HOCO (32 MHz), LOCO (32.768 kHz), and external crystal support via X1/X2 pins - all managed by the Clock Generation Circuit with trimmable accuracy.
Peripheral integration follows Renesas' RA family commonality: the Serial Array Unit (SAU) provides three simplified SPI, three simplified I²C, and two UART channels (plus one LIN-enabled UART), while the TAU timer array delivers eight 16-bit channels with PWM capability and flexible channel grouping for higher-resolution timing functions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M23, 32 MHz max - enables deterministic real-time control with TrustZone security isolation for firmware partitioning. |
| Memory | 64-KB code flash + 1-KB data flash + 12-KB SRAM with parity - supports field firmware updates and robust data logging in safety-critical applications. |
| Analog | 12-bit ADC12 with 6 input channels (AN000–AN005) + on-die temperature sensor - enables precision sensor signal acquisition without external components. |
| Timers | TAU × 8 (16-bit) + TML32 × 1 (configurable as 32/16/8-bit) + RTC - provides multi-scale timing for PWM generation, interval counting, and calendar-based wake-up. |
| Communication | SAU × 2 (SPI/I²C/UART), UARTA × 1 (LIN-bus supported), IICA × 1 - delivers flexible serial connectivity for sensor fusion and automotive-grade diagnostics. |
| Safety & Security | SRAM parity check, IWDT, CRC-32, register write protection, flash read protection - meets IEC 61508 SIL-2 functional safety requirements out-of-the-box. |
| Power & Environment | 1.6–5.5 V operation, -40°C to +105°C, LSSOP-20 (4.4 mm × 6.5 mm) - suitable for wide-input industrial power rails and harsh ambient conditions. |
Pinout & Package
Package: 20-pin LSSOP (PLSP0020JB-A), 4.4 mm × 6.5 mm, 0.65 mm pitch, lead-free (Sn).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCL | Analog power stabilization | Connects to VSS via 0.47–1 µF capacitor to stabilize internal LDO; not a voltage input. |
| VSS | Ground reference | Primary digital/analog ground; must be low-impedance connection to PCB plane. |
| X2/EXCLK/XCOUT | Sub-clock oscillator interface | Supports 32.768 kHz crystal or external clock; shared pin requires mode selection via CMC.XTSEL. |
| X1/XCIN | Sub-clock oscillator interface | Crystal input pin; paired with X2/EXCLK/XCOUT for RTC and low-power timing. |
| VCC | Main power supply | 1.6–5.5 V input; decoupled with 0.1 µF capacitor placed adjacent to pin. |
| P206/RES | Reset control | Active-low hardware reset; internal pull-up enabled; compatible with open-drain reset supervisors. |
| P300/SWCLK | Debug clock | Serial Wire Debug (SWD) clock input; used with SWDIO for programming and real-time trace. |
| P108/SWDIO | Debug data I/O | SWD bidirectional data line; supports debug access and flash programming without JTAG pins. |
| P100–P103, P109–P112 | General I/O | 16 GPIOs total; 12 with pull-up resistors, 9 N-ch open-drain outputs, no 5-V tolerance in LSSOP variant. |
| AN000–AN005 | Analog inputs | 6-channel ADC inputs; referenced to VREFH0/VREFL0; supports internal temperature sensor output routing. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | Multiple low-power modes (Sleep, Deep Sleep, Software Standby) with sub-µA RTC retention current enable battery life >10 years in sensor nodes. |
| Integrated safety mechanisms | SRAM parity error detection triggers automatic reset; IWDT operates independently on LOCO clock for fail-safe recovery during main clock failure. |
| Flexible clock management | HOCO/MOCO/LOCO trimming resolution down to 0.05% allows precise frequency calibration across voltage/temperature for timing-critical protocols. |
| Hardware-accelerated data integrity | CRC-32 engine processes memory blocks or peripheral transfers without CPU intervention, reducing firmware overhead in communication stacks. |
| Event-driven peripheral linking | Event Link Controller (ELC) connects ADC conversion completion directly to TAU trigger or DTC transfer - eliminates polling and ISR latency. |
Applications
| Industrial Sensor Node | Smart Energy Meter Interface |
|---|---|
Use Scenario: Battery-powered temperature/humidity sensor with wireless telemetry in HVAC systems. IC Role / Device Role / Timing Role: Main controller executing sensor acquisition, data preprocessing, and BLE/Wi-Fi coexistence timing via ELC-synchronized ADC-to-DTC transfers. Use Value: 12-KB SRAM with parity enables reliable local buffering; 64-KB flash supports dual-bank OTA updates; RTC with alarm interrupt schedules periodic wake-ups at exact minute boundaries. | Use Scenario: Communication interface between metrology ASIC and PLC in residential electricity meters. IC Role / Device Role / Timing Role: Protocol bridge handling I²C reads from metrology IC and UART/LIN transmission to concentrator, synchronized by TML32 interval timer. Use Value: SAU's LIN-capable UART ensures compliance with ISO 17987-2; 1.6–5.5 V operation tolerates wide-range meter supply rails; CRC-32 validates frame integrity over noisy power-line environments. |
| Automotive Body Control Module | Low-Cost Industrial PLC I/O Expander |
Use Scenario: Door lock actuator controller with CAN gateway functionality in entry-level vehicles. IC Role / Device Role / Timing Role: Safety-monitoring node performing GPIO readback level detection and independent watchdog supervision of actuator driver ICs. Use Value: GPIO readback verification prevents latch-up-induced false commands; IWDT reset recovery restores safe state within 100 ms; register write protection guards configuration registers from spurious writes. | Use Scenario: DIN-rail mounted remote I/O module collecting analog/digital signals from factory floor sensors. IC Role / Device Role / Timing Role: Local intelligence unit running Modbus RTU over UARTA while managing 6-channel ADC sampling at 10 kSPS using TAU-triggered conversions. Use Value: 12-bit ADC with internal reference eliminates external voltage reference IC; 5.5 V tolerant VCC supports 24 V DC industrial supplies with simple LDO; 16 GPIOs provide direct LED/status signaling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FA0E1053CSC#HA0 | 32-KB code flash, same 20-pin LSSOP package, identical peripherals and clocking | Reduced firmware footprint requirement; insufficient for complex protocol stacks or dual-application firmware | Select when application firmware fits within 32 KB and no future feature expansion is planned. |
| R7FA2E1073CSC#HA0 | Arm Cortex-M23 core, 128-KB flash, 16-KB SRAM, enhanced SAU (3 UARTs), same LSSOP-20 pinout | Higher memory headroom for secure boot, TLS stack, or larger RTOS; retains full pin compatibility | Choose for designs requiring cryptographic acceleration, larger OTA images, or future-proofing without PCB change. |
Compared with R7FA0E1073CSC#HA0, the R7FA0E1053CSC#HA0 reduces flash by 32 KB but maintains identical safety and analog features for cost-sensitive nodes, while the R7FA2E1073CSC#HA0 doubles flash and SRAM within the same LSSOP-20 footprint - enabling secure connectivity stacks without layout revision.
Availability
R7FA0E1073CSC#HA0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart energy meter interfaces, and automotive body control modules requiring stable component supply, long-term lifecycle assurance, and full traceability.
Supply support for R7FA0E1073CSC#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 Corporation is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.
The RA0E1 Group is designed for cost-sensitive, ultra-low-power embedded applications demanding functional safety certification, with emphasis on rapid time-to-market through software- and pin-compatible scalability across memory and peripheral configurations.
FAQ
What is the maximum operating frequency of the R7FA0E1073CSC#HA0?
The R7FA0E1073CSC#HA0 operates at a maximum frequency of 32 MHz using its high-speed on-chip oscillator (HOCO). This frequency is achievable across the full operating voltage range (1.6–5.5 V) and temperature range (-40°C to +105°C), and the HOCO supports ±1.0% accuracy with trimming enabled. The R7FA0E1073CSC#HA0 also supports external crystal oscillators up to 20 MHz for higher precision timing.
Does the R7FA0E1073CSC#HA0 support LIN bus communication?
Yes, the R7FA0E1073CSC#HA0 supports LIN bus communication through its dedicated UART channel (UART2) within the Serial Array Unit (SAU). This channel is explicitly documented as LIN-bus supported in the datasheet and complies with ISO 17987-2. The R7FA0E1073CSC#HA0 does not include a dedicated LIN transceiver, so an external physical layer IC is required for bus termination and level translation.
How many analog input channels does the R7FA0E1073CSC#HA0 have?
The R7FA0E1073CSC#HA0 provides six analog input channels (AN000 to AN005) for its 12-bit ADC12 module. This count is specific to the 20-pin LSSOP package variant (R7FA0E1073CSC#HA0); other package variants offer up to ten channels. The ADC supports internal references (VREFH0/VREFL0) and can digitize the on-die temperature sensor output.
What safety features are implemented in the R7FA0E1073CSC#HA0?
The R7FA0E1073CSC#HA0 integrates multiple hardware-based safety features: SRAM parity error detection with automatic reset, Independent Watchdog Timer (IWDT) operating on the LOCO clock, Flash Area Protection, ADC self-diagnosis, Cyclic Redundancy Check (CRC) engine, GPIO readback level detection, register write protection, and illegal memory access detection. These features collectively support IEC 61508 SIL-2 compliance.
Is the R7FA0E1073CSC#HA0 pin-compatible with other RA0E1 group members?
Yes, the R7FA0E1073CSC#HA0 is pin-compatible with other 20-pin LSSOP variants in the RA0E1 group, including R7FA0E1053CSC#HA0 and R7FA0E1073CSD#HA0 (TSSOP-20). Pin compatibility extends to power, clock, debug, reset, and all GPIO/ADC/communication signals. However, it is not pin-compatible with 32-pin, 24-pin, or 16-pin RA0E1 variants due to differing pin counts and assignments.
R7FA0E1073CSC#HA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 20-LSSOP (0.173", 4.40mm Width)
- 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:
- 16
- Program Memory Size:
- 64KB (64K 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 6x12b SAR
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7FA0E1073CSC#HA0 FAQ
1.How can I place an order for R7FA0E1073CSC#HA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA0E1073CSC#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 R7FA0E1073CSC#HA0 reliable?
The price and inventory of R7FA0E1073CSC#HA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA0E1073CSC#HA0 is usually 5 days.
3.What payment methods are accepted for R7FA0E1073CSC#HA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FA0E1073CSC#HA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FA0E1073CSC#HA0?
R7FA0E1073CSC#HA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FA0E1073CSC#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 R7FA0E1073CSC#HA0?
For technical support, including R7FA0E1073CSC#HA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA0E1073CSC#HA0 requirements.
6.How does Aetrix verify that R7FA0E1073CSC#HA0 is sourced from the original manufacturer or authorized distributors?
All R7FA0E1073CSC#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 R7FA0E1073CSC#HA0 meets industry standards.
7.What is the process for return or replacement of R7FA0E1073CSC#HA0?
All R7FA0E1073CSC#HA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA0E1073CSC#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 R7FA0E1073CSC#HA0 part is unused and in its original packaging.
Return procedure for R7FA0E1073CSC#HA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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