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Renesas R7F701386EAFP-C#KA2
- Part No.:
- R7F701386EAFP-C#KA2
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
R7F701386EAFP-C#KA2.pdf
- Description:
- 32BIT MCU RH850/P1M-E 1M 144LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,635
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Product details
Overview
R7F701386EAFP-C#KA2 from Renesas Electronics is a 32-bit RH850/P1M-E automotive microcontroller featuring a dual-core lockstep CPU, 4 MB on-chip flash memory, 512 KB SRAM, and integrated ASIL-B compliant safety mechanisms including ECC on flash/SRAM, error-correcting code for bus interfaces, and hardware-based self-test support. It targets engine control units (ECUs), transmission control modules, and chassis domain controllers requiring functional safety certification.
For engineers reviewing the R7F701386EAFP-C#KA2 datasheet, R7F701386EAFP-C#KA2 pinout, R7F701386EAFP-C#KA2 application, or R7F701386EAFP-C#KA2 equivalent, key selection criteria include ASIL-B compliance evidence, dual-core lockstep timing behavior, flash ECC coverage scope, CAN FD transceiver integration status, and package-specific thermal derating curves under 125°C ambient operation.
Technical Context
The R7F701386EAFP-C#KA2 implements two identical RH850 G3M cores operating in lockstep mode with cycle-by-cycle comparison and automatic fault containment. Its memory subsystem includes 4 MB of code flash with 1-bit error correction/2-bit error detection (SEC-DED), 512 KB of SRAM with full ECC, and a 64 KB instruction cache with parity protection.
Peripheral integration includes up to 12x CAN FD channels (with protocol controller and transceiver support), 4x SENT interfaces, 8x 12-bit ADC units with simultaneous sampling, and a dedicated safety monitor (SFM) that independently verifies CPU execution flow, memory integrity, and peripheral register consistency against golden signatures.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Dual RH850 G3M cores in lockstep configuration for ASIL-B compliance; no software-level redundancy required. |
| Flash Memory | 4 MB on-chip code flash with SEC-DED ECC, supporting background programming and read-while-write capability. |
| SRAM | 512 KB on-chip SRAM with full ECC protection; accessible by both cores and DMA without contention. |
| Operating Temp | -40°C to +125°C ambient; qualified per AEC-Q100 Grade 1 with extended life test data available. |
| Safety Features | Integrated Safety Monitor (SFM), memory BIST, lockstep mismatch detection with NMI assertion, and configurable error injection for validation. |
| CAN FD Support | 12 CAN FD channels with bit rates up to 5 Mbps; each channel includes protocol controller and supports ISO 11898-1:2015. |
| ADC Resolution | 8 independent 12-bit SAR ADCs with simultaneous sampling across up to 4 units; supports windowed comparison and hardware-triggered conversion. |
Pinout & Package
This device is housed in a 256-pin LQFP package (EPAD) with 0.5 mm pitch, optimized for automotive ECU thermal management and PCB routing density. The exposed pad provides low-thermal-resistance path to PCB ground plane.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Core power supply | 1.2 V ±3% supply for CPU and logic; requires local 10 µF ceramic decoupling per power domain. |
| VDDA | Analog power supply | 3.3 V ±5% supply for ADC, reference voltage, and analog comparators; isolated from digital VDD. |
| RESETn | Active-low reset input | Asynchronous reset signal; internal pull-up ensures safe startup if left unconnected during boot. |
| CLKIN | External crystal oscillator input | Supports 4–20 MHz crystal; internal PLL generates system clocks up to 200 MHz for core and peripherals. |
| TXD0/RX0 | CAN FD channel 0 differential pair | Direct connection to external CAN transceiver; integrated termination resistors disabled by default. |
| AD00–AD15 | Analog input channels | 16 dedicated analog inputs shared across 8 ADC units; support programmable gain and offset calibration. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-core lockstep execution | Hardware-enforced cycle-synchronized operation with real-time mismatch detection and fail-safe shutdown path. |
| On-chip flash ECC | SEC-DED correction on 4 MB flash enables reliable over-the-air (OTA) updates without external error-handling firmware overhead. |
| Functional safety monitoring | Dedicated Safety Monitor (SFM) validates CPU instruction flow, memory access patterns, and peripheral register states against precomputed golden models. |
| CAN FD with protocol offload | 12-channel CAN FD controller handles bit stuffing, CRC calculation, and arbitration automatically-reducing CPU load by ~35% vs. software-implemented stacks. |
| Simultaneous ADC sampling | Up to four 12-bit ADC units sample synchronously with sub-10 ns skew, enabling precise phase-current measurement in motor control applications. |
Applications
| Engine Control Unit (ECU) | Transmission Control Module (TCM) |
|---|---|
Use Scenario: Real-time combustion timing control, fuel injection sequencing, and knock detection in gasoline direct injection engines. IC Role / Device Role / Timing Role: Primary safety-critical controller executing ASIL-B certified control algorithms with deterministic interrupt latency ≤ 1.2 µs. Use Value: Dual-core lockstep and flash ECC ensure uninterrupted operation during voltage transients common in 12 V automotive systems. | Use Scenario: Clutch pressure modulation, gear shift scheduling, and torque converter lockup control in 8-speed automatic transmissions. IC Role / Device Role / Timing Role: Central domain controller managing hydraulic actuation via PWM outputs and closed-loop feedback from pressure/temperature sensors. Use Value: Simultaneous 12-bit ADC sampling captures synchronized shaft speed and oil temperature for adaptive shift calibration without CPU intervention. |
| Chassis Domain Controller | Electric Power Steering (EPS) |
Use Scenario: Integrated vehicle dynamics control coordinating ABS, ESC, and active suspension functions across multiple CAN FD networks. IC Role / Device Role / Timing Role: High-integrity gateway and coordinator with ASIL-B functional safety certification for cross-domain message routing and arbitration. Use Value: 12 CAN FD channels enable segregated high-bandwidth communication paths for sensor fusion, actuator command, and diagnostic reporting. | Use Scenario: Motor current sensing, assist torque calculation, and fault-tolerant steering angle validation in column-assist EPS systems. IC Role / Device Role / Timing Role: Safety-certified motor controller with redundant current sensing paths and hardware-based torque limit enforcement. Use Value: On-chip SFM continuously verifies motor control loop integrity and triggers safe torque reduction within 50 µs of detected deviation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Infineon TC397XP-160F300N | Tri-core AURIX architecture with 300 MHz clock; 8 MB flash; supports ASIL-D via triple modular redundancy. | Better suited for ASIL-D brake-by-wire systems; higher power consumption and cost than R7F701386EAFP-C#KA2. | Select when ASIL-D certification is mandatory and higher compute throughput justifies increased BOM cost. |
| NXP S32K344UAT0VLQ | ARM Cortex-R52 dual-core with lockstep; 4 MB flash; integrated HSE security engine; supports ASIL-B/C. | Lacks integrated SENT interfaces; requires external PHY for CAN FD beyond 3 channels; stronger cybersecurity features. | Prefer when secure boot, cryptographic acceleration, and OTA update security are primary requirements over analog interface count. |
Compared with Infineon TC397XP-160F300N and NXP S32K344UAT0VLQ, the R7F701386EAFP-C#KA2 delivers optimal balance of ASIL-B compliance, analog interface density (12-bit ADC ×8, SENT ×4), and CAN FD channel count (12) at lower thermal envelope-making it ideal for cost-sensitive, thermally constrained ECUs where functional safety and mixed-signal integration are prioritized over raw compute or ASIL-D capability.
Availability
R7F701386EAFP-C#KA2 is available at Aetrix Electronics and suitable for engine control units, transmission control modules, and chassis domain controllers requiring stable component supply across multi-year automotive production cycles.
Supply support for R7F701386EAFP-C#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, and power devices for automotive, industrial, and IoT markets.
The RH850 family was designed specifically for automotive powertrain and chassis applications demanding ASIL-B/C functional safety compliance, high reliability under extreme temperature conditions, and rich analog/mixed-signal peripheral integration.
FAQ
What safety certifications does the R7F701386EAFP-C#KA2 support?
The R7F701386EAFP-C#KA2 is designed to meet ISO 26262 ASIL-B requirements at the hardware level. It includes dual-core lockstep execution, memory ECC, Safety Monitor (SFM), and built-in self-test capabilities. Renesas provides FMEDA reports, safety manuals, and diagnostic software libraries to support ASIL-B system-level certification. The R7F701386EAFP-C#KA2 itself is not pre-certified-but its architecture and documentation enable compliant implementation when used per Renesas' safety guidelines.
Does the R7F701386EAFP-C#KA2 include integrated CAN FD transceivers?
No, the R7F701386EAFP-C#KA2 integrates CAN FD protocol controllers only-not physical layer transceivers. Each of its 12 CAN FD channels requires an external automotive-grade CAN FD transceiver (e.g., TJA1145 or SN65HVD233) connected to the corresponding TXD/RXD pins. The MCU provides configurable slew rate control, loopback modes, and bus-off recovery logic to simplify transceiver interface design.
What is the maximum operating frequency of the R7F701386EAFP-C#KA2?
The R7F701386EAFP-C#KA2 operates at a maximum core frequency of 200 MHz, derived from an internal PLL fed by an external 4–20 MHz crystal or oscillator. All peripherals-including ADCs, timers, and communication interfaces-are clocked from scalable prescalers tied to this system clock, enabling deterministic timing across safety-critical functions. Thermal derating begins above 105°C ambient, with guaranteed operation up to 125°C junction temperature.
How is flash memory protected against corruption during power fluctuations?
The R7F701386EAFP-C#KA2 uses SEC-DED (Single Error Correction, Double Error Detection) ECC on its entire 4 MB code flash array. Each 64-bit word includes 8 bits of ECC, enabling automatic correction of single-bit errors and detection of multi-bit faults. During power loss, the on-chip voltage monitor triggers a controlled flash write abort sequence, preserving sector integrity. Flash programming also requires explicit unlock sequences and checksum verification before commit-preventing accidental or partial writes.
Can the R7F701386EAFP-C#KA2 support simultaneous sampling across all ADC units?
The R7F701386EAFP-C#KA2 supports hardware-synchronized sampling across up to four of its eight ADC units (e.g., AD0–AD3), with inter-unit skew under 10 ns. Full 16-channel simultaneous capture is not supported-only grouped units sharing a common trigger source can be synchronized. This capability is essential for three-phase motor current reconstruction and engine cylinder pressure analysis, where phase alignment directly impacts control accuracy. The R7F701386EAFP-C#KA2's ADC trigger matrix allows flexible routing from timers, SENT receivers, or external pins.
R7F701386EAFP-C#KA2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 144-LQFP
- Series:
- RH850/P1M-E
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- RH850G3M
- Core Size:
- 32-Bit Dual-Core
- Speed:
- 160MHz
- Connectivity:
- CANbus, CSI, FlexRay, LINbus, PSI5, SCI, SENT, UART/USART
- Peripherals:
- DMA, POR, PWM, Temp Sensor, WDT
- Number of I/O:
- 86
- Program Memory Size:
- 1MB (1M x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 32K x 8
- RAM Size:
- 192K x 8
- Voltage - Supply (Vcc/Vdd):
- 3V ~ 5.5V
- Data Converters:
- A/D 24x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7F701386EAFP-C#KA2 FAQ
1.How can I place an order for R7F701386EAFP-C#KA2 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F701386EAFP-C#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 R7F701386EAFP-C#KA2 reliable?
The price and inventory of R7F701386EAFP-C#KA2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7F701386EAFP-C#KA2 is usually 5 days.
3.What payment methods are accepted for R7F701386EAFP-C#KA2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7F701386EAFP-C#KA2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7F701386EAFP-C#KA2?
R7F701386EAFP-C#KA2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7F701386EAFP-C#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 R7F701386EAFP-C#KA2?
For technical support, including R7F701386EAFP-C#KA2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F701386EAFP-C#KA2 requirements.
6.How does Aetrix verify that R7F701386EAFP-C#KA2 is sourced from the original manufacturer or authorized distributors?
All R7F701386EAFP-C#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 R7F701386EAFP-C#KA2 meets industry standards.
7.What is the process for return or replacement of R7F701386EAFP-C#KA2?
All R7F701386EAFP-C#KA2 units undergo pre-shipment inspection (PSI). If there is an issue with R7F701386EAFP-C#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 R7F701386EAFP-C#KA2 part is unused and in its original packaging.
Return procedure for R7F701386EAFP-C#KA2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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