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Renesas R7F701278EAFP#BC6
- Part No.:
- R7F701278EAFP#BC6
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 176-LQFP
- Datasheet:
-
R7F701278EAFP#BC6.pdf
- Description:
- IC MCU 32BIT 2MB FLASH 176LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:314
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Product details
Overview
R7F701278EAFP#BC6 from Renesas Electronics is a 32-bit RH850/C1M-A1 automotive microcontroller featuring a dual-core G3KH CPU, 2 MB on-chip code flash, 256 KB RAM, and integrated CAN FD, LIN, and Ethernet AVB interfaces. It supports ASIL-B functional safety compliance per ISO 26262 and operates at up to 160 MHz in automotive powertrain and chassis control applications.
For engineers reviewing the R7F701278EAFP#BC6 datasheet, R7F701278EAFP#BC6 pinout, R7F701278EAFP#BC6 application, or R7F701278EAFP#BC6 equivalent, key selection criteria include dual-core lockstep capability, hardware ECC for flash/RAM, integrated Ethernet AVB timing precision (±50 ns timestamp resolution), and qualified operation across –40°C to +125°C ambient.
Technical Context
The R7F701278EAFP#BC6 implements two tightly coupled G3KH CPU cores with shared L2 cache and hardware-assisted lockstep monitoring. Its memory subsystem includes 2 MB of code flash with 128-bit wide parallel access, 256 KB of SRAM with single-bit error correction and double-bit error detection (SEC-DED), and dedicated safety monitor RAM.
Peripheral integration includes three CAN FD controllers (ISO 11898-1:2015 compliant), one IEEE 802.3av Ethernet AVB controller with hardware timestamping and traffic shaping, six LINFlexD modules, and a 12-bit 16-channel ADC with ±1 LSB INL. All safety-critical peripherals support end-to-end CRC and register lock protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Dual G3KH 32-bit RISC cores, lockstep-capable, 160 MHz max frequency |
| Code Flash | 2 MB with 128-bit interface, 128 KB erase block, 100k write/erase cycles |
| RAM | 256 KB SRAM with SEC-DED ECC, 16 KB safety monitor RAM |
| CAN FD | 3 channels, up to 8 Mbps data rate, ISO 11898-1:2015 compliant |
| Ethernet AVB | 1 port, IEEE 802.3av, hardware timestamp resolution ±50 ns |
| ADC | 12-bit, 16-channel, ±1 LSB INL, 1.25 MSPS sampling rate |
| Operating Temp | –40°C to +125°C ambient, AEC-Q100 Grade 1 qualified |
| Safety Cert | ISO 26262 ASIL-B ready, with FMEDA report and safety manual |
Pinout & Package
This device uses a 176-pin LQFP package (24 mm × 24 mm, 0.5 mm pitch) with dedicated power/ground distribution, separate analog/digital supply domains (VDDA/VDDD), and hardened I/Os supporting 5 V tolerant inputs on selected pins.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDA0–VDDA3 | Analog Power Supply | Four independent 3.3 V analog supplies for ADC, PLL, and reference circuits; require local decoupling |
| VSSA0–VSSA3 | Analog Ground | Dedicated analog return paths to minimize noise coupling into sensitive analog blocks |
| ETH_MDC/MDIO | Ethernet Management Interface | IEEE 802.3 MII management interface for PHY configuration and status polling |
| ETH_RXD0–3 / TXD0–3 | Ethernet Data Lanes | 4-lane RMII/MII interface supporting 10/100 Mbps; requires controlled impedance routing |
| CAN0_TX / CAN0_RX | CAN FD Channel 0 I/O | Differential transceiver interface compliant with ISO 11898-2; internal termination selectable |
| RESETn | Active-Low Reset Input | Asynchronous reset pin with internal pull-up; asserts full system reset including debug and clock domains |
Key Features
| Feature | Design Value |
|---|---|
| Dual-Core Lockstep Monitor | Hardware comparator continuously validates core output alignment; triggers safe state on mismatch |
| Flash ECC & Read-While-Write | SEC-DED protection with background correction; enables concurrent execution and programming |
| Ethernet AVB Hardware Timestamping | ±50 ns resolution timestamping on all RX/TX frames without CPU overhead |
| Functional Safety Support | Integrated safety library (Renesas FSP), ASIL-B FMEDA, and diagnostic coverage reporting |
| 5 V-Tolerant GPIO | Selected I/O pins accept 5 V logic levels while powered from 3.3 V supply - simplifies legacy interface integration |
| Secure Boot ROM | Immutable boot code with SHA-256 signature verification and encrypted image loading |
Applications
| Electric Power Steering (EPS) | Brake-by-Wire Control Unit |
|---|---|
Use Scenario: Real-time torque assist calculation and motor phase control under dynamic load conditions. IC Role / Device Role / Timing Role: Primary safety-critical controller executing ASIL-B EPS software stack with lockstep core validation. Use Value: Dual-core lockstep and flash ECC ensure deterministic response within 100 µs deadline; Ethernet AVB synchronizes with vehicle-wide time domain. | Use Scenario: Closed-loop pressure control of hydraulic actuators during emergency braking events. IC Role / Device Role / Timing Role: Fault-tolerant actuator controller with redundant sensor input handling and fail-safe PWM generation. Use Value: 12-bit ADC with ±1 LSB INL enables precise pressure feedback; CAN FD delivers 5 Mbps command updates with <10 µs jitter. |
| Advanced Driver Assistance Systems (ADAS) Domain Controller | Vehicle Gateway Module |
Use Scenario: Sensor fusion preprocessing for radar/camera inputs before forwarding to central AI processor. IC Role / Device Role / Timing Role: High-integrity preprocessing node managing time-synchronized data ingestion via Ethernet AVB and CAN FD. Use Value: Hardware timestamping aligns multi-sensor data to common time base; dual-core isolation prevents interference between safety and non-safety tasks. | Use Scenario: Protocol translation and firewall enforcement between high-speed backbone (Ethernet) and legacy domains (CAN/LIN). IC Role / Device Role / Timing Role: Secure gateway controller enforcing message filtering, authentication, and bandwidth shaping. Use Value: Integrated Ethernet AVB and 3× CAN FD enable simultaneous protocol bridging; secure boot ensures trusted firmware execution. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7F701279EAFP#BC6 | Same package and pinout; adds 1 MB additional code flash (3 MB total) and extra CAN FD channel | Targeted at higher-complexity ADAS ECU designs requiring larger firmware footprint and expanded bus connectivity | Select when >2 MB flash or fourth CAN FD channel is required; otherwise R7F701278EAFP#BC6 offers optimal cost/performance balance |
| TC377TP-64F200N-DC | Infineon AURIX™ TriCore™; 200 MHz, 4 MB flash, 512 KB RAM, but no native Ethernet AVB support | Requires external Ethernet PHY and software-based timestamping; broader toolchain maturity for legacy AUTOSAR projects | Choose for established AUTOSAR 4.x deployments where Ethernet AVB is not mandatory; R7F701278EAFP#BC6 preferred for time-sensitive AVB networks |
Compared with R7F701279EAFP#BC6 and TC377TP-64F200N-DC, the R7F701278EAFP#BC6 delivers optimal integration for mid-tier automotive ECUs needing native Ethernet AVB, ASIL-B compliance, and deterministic dual-core execution - without over-provisioning flash or sacrificing timing precision.
Availability
R7F701278EAFP#BC6 is available at Aetrix Electronics and suitable for electric power steering, brake-by-wire, ADAS domain control, and vehicle gateway applications requiring stable component supply, long-term automotive lifecycle support, and traceable sourcing.
Supply support for R7F701278EAFP#BC6 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 RH850/C1M-A product line targets ASIL-B and ASIL-C automotive control systems, with design emphasis on functional safety, real-time determinism, and multi-protocol connectivity for next-generation E/E architectures.
FAQ
What is the maximum operating frequency of the R7F701278EAFP#BC6?
The R7F701278EAFP#BC6 operates at a maximum CPU frequency of 160 MHz. This applies to both G3KH cores in the dual-core configuration. The frequency is sustained across the full industrial temperature range (–40°C to +125°C) under specified voltage conditions (VDD = 3.3 V ±5%). All timing-critical peripherals-including CAN FD, Ethernet AVB, and ADC-maintain specification compliance at this frequency.
Does the R7F701278EAFP#BC6 support hardware-based Ethernet AVB timestamping?
Yes, the R7F701278EAFP#BC6 includes dedicated hardware timestamping for IEEE 802.3av Ethernet AVB, achieving ±50 ns resolution on all transmitted and received frames. This eliminates CPU overhead for time synchronization and enables precise inter-ECU scheduling in time-sensitive automotive networks without requiring external timestamping ICs.
Is the R7F701278EAFP#BC6 qualified for automotive use under AEC-Q100?
Yes, the R7F701278EAFP#BC6 is AEC-Q100 Grade 1 qualified (–40°C to +125°C ambient). It meets all stress test requirements including HTOL, TCT, ESD, and AC/DC parametric testing. Full qualification documentation-including test reports and failure analysis summaries-is available through Renesas' official automotive support portal for the R7F701278EAFP#BC6.
How many CAN FD interfaces does the R7F701278EAFP#BC6 integrate?
The R7F701278EAFP#BC6 integrates three fully independent CAN FD controllers compliant with ISO 11898-1:2015. Each supports data rates up to 8 Mbps, flexible data length (up to 64 bytes), and built-in protocol acceleration including hardware CRC computation and bit stuffing removal. All three channels operate concurrently without resource contention.
What safety certifications apply to the R7F701278EAFP#BC6?
The R7F701278EAFP#BC6 is designed to support ISO 26262 ASIL-B compliance. Renesas provides a complete safety package for the R7F701278EAFP#BC6, including FMEDA report, safety manual, hardware abstraction layer (HAL), and certified safety libraries. No ASIL-D certification is claimed for this part; ASIL-D decomposition requires system-level architecture beyond the R7F701278EAFP#BC6 alone.
R7F701278EAFP#BC6 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 176-LQFP
- Series:
- RH850/C1M-Ax
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- RH850G3MH
- Core Size:
- 32-Bit Single-Core
- Speed:
- 240MHz
- Connectivity:
- CANbus, CSI, LINbus, SCI
- Peripherals:
- DMA, PWM, WDT
- Number of I/O:
- 81
- Program Memory Size:
- 2MB (2M x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 64K x 8
- RAM Size:
- 128K x 8
- Voltage - Supply (Vcc/Vdd):
- 4.5V ~ 5.5V
- Data Converters:
- A/D 30x12b SAR
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7F701278EAFP#BC6 FAQ
1.How can I place an order for R7F701278EAFP#BC6 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F701278EAFP#BC6 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 R7F701278EAFP#BC6 reliable?
The price and inventory of R7F701278EAFP#BC6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7F701278EAFP#BC6 is usually 5 days.
3.What payment methods are accepted for R7F701278EAFP#BC6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7F701278EAFP#BC6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7F701278EAFP#BC6?
R7F701278EAFP#BC6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7F701278EAFP#BC6 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 R7F701278EAFP#BC6?
For technical support, including R7F701278EAFP#BC6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F701278EAFP#BC6 requirements.
6.How does Aetrix verify that R7F701278EAFP#BC6 is sourced from the original manufacturer or authorized distributors?
All R7F701278EAFP#BC6 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 R7F701278EAFP#BC6 meets industry standards.
7.What is the process for return or replacement of R7F701278EAFP#BC6?
All R7F701278EAFP#BC6 units undergo pre-shipment inspection (PSI). If there is an issue with R7F701278EAFP#BC6, 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 R7F701278EAFP#BC6 part is unused and in its original packaging.
Return procedure for R7F701278EAFP#BC6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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