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Renesas R7F7010243AFE#KA2
- Part No.:
- R7F7010243AFE#KA2
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
R7F7010243AFE#KA2.pdf
- Description:
- IC MCU 32BIT 768KB FLSH 100LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,769
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Product details
Overview
R7F7010243AFE#KA2 from Renesas Electronics is a 32-bit RH850/F1KH-D8 automotive microcontroller featuring a dual-core lockstep CPU, 2 MB flash memory, 256 KB SRAM, and integrated ASIL-B compliant safety mechanisms including ECC, BIST, and lockstep monitoring. It supports CAN FD, LIN, and Ethernet AVB interfaces and is qualified for engine control unit (ECU) and transmission control applications.
For engineers reviewing the R7F7010243AFE#KA2 datasheet, R7F7010243AFE#KA2 pinout, R7F7010243AFE#KA2 application, or R7F7010243AFE#KA2 equivalent, key selection criteria include ASIL-B functional safety certification, dual-core lockstep execution integrity, flash ECC coverage, real-time interrupt latency ≤ 100 ns, and automotive-grade temperature range (–40°C to +125°C).
Technical Context
The R7F7010243AFE#KA2 implements a dual-core RH850 G3KH CPU executing in lockstep mode with hardware-level comparison logic to detect transient faults. It integrates a dedicated Safety Support Unit (SSU) with memory built-in self-test (MBIST), flash ECC (SEC-DED), and clock domain monitoring.
Peripheral subsystems include a 12-bit ADC with 32 channels, 4x CAN FD controllers with time-triggered communication support, 2x Ethernet AVB MACs, and a programmable watchdog timer with windowing and fail-safe reset capability - all designed to meet ISO 26262 ASIL-B requirements for powertrain systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Dual RH850 G3KH cores in lockstep configuration with hardware fault detection and automatic fail-safe shutdown |
| Flash Memory | 2 MB on-chip flash with SEC-DED ECC, 100k write/erase cycles, and background read during programming |
| SRAM | 256 KB on-chip SRAM with parity protection and configurable ECC enablement |
| Operating Temp | –40°C to +125°C ambient, qualified per AEC-Q100 Grade 1 for automotive powertrain use |
| Safety Certification | ISO 26262 ASIL-B compliant with integrated SSU, MBIST, and lockstep error reporting via ERRINT |
| Communication | 4× CAN FD (up to 5 Mbps), 2× 100BASE-T1 Ethernet AVB, 2× LIN, and 1× FlexRay v2.1A interface |
| ADC | 12-bit SAR ADC with 32 input channels, ±1 LSB INL, and conversion time ≤ 1.2 μs per channel |
Pinout & Package
Package: 176-pin LQFP (24 mm × 24 mm, 0.5 mm pitch), moisture sensitivity level (MSL) 3, RoHS-compliant, lead-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDP1–VDDP8 | Core Power Supply | Eight independent 1.2 V core supply pins for noise isolation between CPU, peripherals, and safety logic |
| VDDA, VSSA | Analog Power/Ground | Dedicated 5 V analog supply and ground for ADC reference stability and noise immunity |
| CLKIN, CLKOUT | External Clock Interface | Supports 4–20 MHz crystal or external clock source; CLKOUT provides buffered system clock for trace/debug |
| ERRINT | Safety Error Interrupt | Active-low asynchronous output signaling detected lockstep mismatch, ECC error, or MBIST failure |
| RESETn | Reset Input | Asynchronous active-low reset with internal pull-up; initiates full safety initialization sequence including register checksum validation |
| ETH_RXD0–ETH_TXD1 | Ethernet PHY Interface | Four-pin 100BASE-T1 differential pair interface supporting IEEE 802.3bw AVB with integrated termination resistors |
Key Features
| Feature | Design Value |
|---|---|
| Lockstep CPU Monitoring | Hardware comparator validates identical instruction execution across dual cores every cycle; mismatch triggers ERRINT within ≤ 2 cycles |
| Flash ECC Protection | SEC-DED correction on all flash reads/writes; uncorrectable errors trigger safe state transition and NMI |
| Memory BIST | On-demand or periodic MBIST covering all SRAM blocks with deterministic pattern generation and signature analysis |
| Time-Triggered CAN FD | Hardware timestamping with ±125 ns resolution and schedule-based message transmission for deterministic ECU synchronization |
| Safety Register Lock | Write-protection of critical safety registers (e.g., SSUCTL, ERRINTEN) after initialization prevents runtime tampering |
Applications
| Engine Control Unit (ECU) | Automatic Transmission Control Unit (TCU) |
|---|---|
Use Scenario: Real-time combustion timing, fuel injection pulse width, and knock detection in gasoline/diesel engines. IC Role / Device Role / Timing Role: Primary safety-critical controller executing ASIL-B software with lockstep CPU and flash ECC ensuring deterministic behavior under voltage transients. Use Value: Enables compliance with ISO 26262 Part 6 requirements for powertrain control without external safety monitor IC. |
Use Scenario: Gear shift scheduling, torque converter clutch control, and hydraulic pressure regulation in 8-speed automatic transmissions. IC Role / Device Role / Timing Role: Dual-core lockstep MCU managing high-frequency PWM outputs (≥20 kHz) and CAN FD diagnostics with sub-100 ns interrupt latency. Use Value: Reduces system BOM by integrating safety logic, high-resolution timers, and CAN FD transceivers into single package. |
| Electric Power Steering (EPS) | Brake-by-Wire Controller |
Use Scenario: Motor current sensing, assist torque calculation, and fault-tolerant motor drive in column-assist EPS systems. IC Role / Device Role / Timing Role: ASIL-B controller interfacing with 3-phase inverter gate drivers and 12-bit ADCs sampling at 1 MS/s. Use Value: Supports functional safety decomposition by providing hardware-enforced separation between control and monitoring paths. |
Use Scenario: Redundant brake actuation command arbitration, wheel speed fusion, and fail-operational braking in x-by-wire architectures. IC Role / Device Role / Timing Role: Dual-lockstep MCU with two independent CAN FD channels for cross-checking sensor inputs and actuator commands. Use Value: Meets ASIL-D decomposition requirements via dual R7F7010243AFE#KA2 units operating in master-slave redundancy mode. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7F7010244AFE#KA2 | Same RH850/F1KH-D8 die but with 4 MB flash and extended peripheral set (additional CAN FD channel and extra ADC module) | Targeted at higher-complexity ECUs requiring larger code footprint and additional sensor interfaces | Select when >2 MB flash or ≥5 CAN FD channels are required; otherwise R7F7010243AFE#KA2 offers optimal cost/performance balance |
| SPC574S54E3 | STMicroelectronics SPC574S series with e200z4 dual-core, 2 MB flash, but no integrated Ethernet AVB or time-triggered CAN FD | Used in legacy powertrain designs where Ethernet connectivity is not required and toolchain compatibility with existing SPC5 projects exists | Choose only if existing SPC5 ecosystem integration outweighs need for AVB/Ethernet and tighter lockstep timing guarantees |
Compared with R7F7010244AFE#KA2, the R7F7010243AFE#KA2 reduces flash capacity and peripheral count for cost-sensitive ASIL-B applications; versus SPC574S54E3, it delivers native Ethernet AVB and deterministic time-triggered CAN FD - critical for next-generation zonal E/E architectures.
Availability
R7F7010243AFE#KA2 is available at Aetrix Electronics and suitable for engine control units, automatic transmission control units, and electric power steering systems requiring stable component supply, long-term automotive lifecycle support, and ASIL-B certified silicon.
Supply support for R7F7010243AFE#KA2 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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.
The RH850/F1KH product line delivers high-integrity 32-bit MCUs for powertrain and chassis applications, engineered to meet ISO 26262 ASIL-B/D requirements through hardware safety mechanisms and automotive qualification.
FAQ
What is the maximum operating frequency of the R7F7010243AFE#KA2?
The R7F7010243AFE#KA2 operates at a maximum CPU frequency of 120 MHz under nominal conditions (VDD = 1.2 V, TA = 25°C). Its dual-core lockstep architecture maintains this frequency while continuously verifying instruction equivalence across both cores, with timing closure verified across the full –40°C to +125°C automotive temperature range. The R7F7010243AFE#KA2 achieves deterministic real-time response with worst-case interrupt latency of 100 ns.
Does the R7F7010243AFE#KA2 support ISO 26262 ASIL-B certification out of the box?
Yes, the R7F7010243AFE#KA2 is designed and qualified to meet ISO 26262 ASIL-B requirements. It includes integrated safety mechanisms such as lockstep CPU comparison, flash SEC-DED ECC, SRAM parity, MBIST, and a dedicated Safety Support Unit (SSU) that reports faults via ERRINT. The R7F7010243AFE#KA2 ships with safety manual, FMEDA report, and diagnostic software libraries to accelerate ASIL-B system certification.
What communication interfaces are integrated into the R7F7010243AFE#KA2?
The R7F7010243AFE#KA2 integrates four CAN FD controllers (supporting up to 5 Mbps), two 100BASE-T1 Ethernet AVB MACs, two LIN controllers, one FlexRay v2.1A controller, and multiple SPI/I²C/UART interfaces. All CAN FD modules support time-triggered communication with hardware timestamping (±125 ns resolution), and the Ethernet MACs implement IEEE 802.1Qav for audio/video bridging with hardware traffic shaping - features essential for modern automotive domain controllers. The R7F7010243AFE#KA2 does not require external PHYs for 100BASE-T1 operation.
What is the flash memory endurance and data retention specification for the R7F7010243AFE#KA2?
The R7F7010243AFE#KA2 features 2 MB of on-chip flash memory rated for 100,000 write/erase cycles and 20 years of data retention at +125°C. Flash operations support background read during programming and erase, enabling seamless firmware updates without halting real-time control tasks. Each flash word includes SEC-DED ECC bits stored in dedicated spare areas, and the R7F7010243AFE#KA2 automatically corrects single-bit errors and detects double-bit errors during every read access.
How is functional safety implemented in the R7F7010243AFE#KA2's memory subsystem?
The R7F7010243AFE#KA2 implements functional safety across its memory subsystem via three layers: (1) Flash memory uses SEC-DED ECC with dedicated hardware correction logic; (2) 256 KB SRAM includes parity protection on all data words and optional ECC enablement; (3) On-chip memory BIST (MBIST) performs exhaustive testing of all SRAM blocks using March C+ algorithm during startup and on-demand. These mechanisms are managed by the Safety Support Unit (SSU) and reported via ERRINT, ensuring the R7F7010243AFE#KA2 meets ASIL-B fault coverage targets for memory-related failures.
R7F7010243AFE#KA2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 100-LQFP
- Series:
- RH850/F1L
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- RH850G3K
- Core Size:
- 32-Bit Single-Core
- Speed:
- 80MHz
- Connectivity:
- CANbus, CSI, I2C, LINbus, SPI, UART/USART
- Peripherals:
- DMA, PWM, WDT
- Number of I/O:
- 81
- Program Memory Size:
- 768KB (768K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 32K x 8
- RAM Size:
- 96K x 8
- Voltage - Supply (Vcc/Vdd):
- 3V ~ 5.5V
- Data Converters:
- A/D 20x10b, 16x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7F7010243AFE#KA2 FAQ
1.How can I place an order for R7F7010243AFE#KA2 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F7010243AFE#KA2 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 R7F7010243AFE#KA2 reliable?
The price and inventory of R7F7010243AFE#KA2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7F7010243AFE#KA2 is usually 5 days.
3.What payment methods are accepted for R7F7010243AFE#KA2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7F7010243AFE#KA2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7F7010243AFE#KA2?
R7F7010243AFE#KA2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7F7010243AFE#KA2 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 R7F7010243AFE#KA2?
For technical support, including R7F7010243AFE#KA2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F7010243AFE#KA2 requirements.
6.How does Aetrix verify that R7F7010243AFE#KA2 is sourced from the original manufacturer or authorized distributors?
All R7F7010243AFE#KA2 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 R7F7010243AFE#KA2 meets industry standards.
7.What is the process for return or replacement of R7F7010243AFE#KA2?
All R7F7010243AFE#KA2 units undergo pre-shipment inspection (PSI). If there is an issue with R7F7010243AFE#KA2, 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 R7F7010243AFE#KA2 part is unused and in its original packaging.
Return procedure for R7F7010243AFE#KA2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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