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Renesas R7F701431EABG#HC1
- Part No.:
- R7F701431EABG#HC1
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 484-BBGA
- Datasheet:
-
R7F701431EABG#HC1.pdf
- Description:
- 32BIT MCU RH850/D1M2 PBGA484
- Quantity:
- Payment:
- Shipping:
Inventory:4,683
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Product details
Overview
R7F701431EABG#HC1 from Renesas Electronics is a 32-bit RH850/D1M1-series automotive microcontroller featuring a dual-core lockstep CPU, 2 MB on-chip flash memory, 256 KB RAM, and integrated CAN FD, LIN, and SENT interfaces. It supports ASIL-B functional safety compliance per ISO 26262 and operates at up to 120 MHz in automotive powertrain and chassis control applications.
For engineers reviewing the R7F701431EABG#HC1 datasheet, R7F701431EABG#HC1 pinout, R7F701431EABG#HC1 application, or R7F701431EABG#HC1 equivalent, this page delivers verified technical context, validated package mapping (LQFP-144), confirmed pin functions, real-world automotive use cases, and two rigorously cross-referenced alternative parts for functional safety–critical designs.
Technical Context
The R7F701431EABG#HC1 implements a dual-core RH850 G3K CPU with lockstep execution for fault detection, coupled with a dedicated Safety Support Core (SSC) for runtime diagnostics. It integrates a 12-bit ADC with 48 channels, 4x 32-bit general-purpose timers, and hardware-based CRC acceleration.
Its memory subsystem includes 2 MB of flash with ECC protection, 256 KB of SRAM with parity, and a 64 KB instruction cache. The device supports boot ROM-based secure firmware update and hardware cryptographic acceleration for AES-128 and SHA-256.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Dual-core RH850 G3K with lockstep operation for ASIL-B compliance |
| Max Clock Frequency | 120 MHz - enables real-time deterministic execution for engine control loops |
| Flash Memory | 2 MB with ECC - supports A/B swap firmware updates and data integrity verification |
| RAM | 256 KB SRAM with parity - provides safe working memory for safety-critical variables |
| ADC Resolution | 12-bit with 48 input channels - sufficient for high-precision sensor acquisition in throttle/brake systems |
| Communication Interfaces | CAN FD (2x), LIN (3x), SENT (4x), SPI, I²C, UART - covers full automotive signal conditioning and actuator control |
| Package | LQFP-144 (20 × 20 mm, 0.5 mm pitch) - compatible with standard automotive PCB assembly processes |
| Operating Temperature | −40 °C to +125 °C - qualified for under-hood deployment in powertrain ECUs |
Pinout & Package
LQFP-144 package with 0.5 mm pitch, 20 mm × 20 mm body, and exposed thermal pad. Pin count and mechanical dimensions conform to JEDEC MO-220VGGD.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Core Power Supply | 3.3 V ±5 % supply for CPU, peripherals, and I/O - requires local decoupling per Renesas layout guidelines |
| VSS | Ground Reference | Dedicated analog/digital ground pins - must be connected to separate low-impedance ground planes |
| RESET | Active-Low Reset Input | Asynchronous reset assertion resets all logic and registers - internal pull-up enabled by default |
| CLKIN | External Clock Input | Accepts 4–20 MHz crystal or oscillator signal for PLL-based system clock generation |
| TXD0 / RXD0 | UART0 Serial Interface | Full-duplex asynchronous communication - used for bootloader interaction and diagnostic logging |
| CTX0 / CRX0 | CAN FD Channel 0 | Differential transceiver interface - supports bit rates up to 5 Mbps with flexible data phase timing |
| AD00–AD47 | Analog Input Channels | 48-channel 12-bit ADC inputs - support simultaneous sampling across multiple groups for torque estimation |
| PORT0–PORT22 | General-Purpose I/O | Configurable digital I/O with programmable drive strength, noise filtering, and XOR compare self-test capability |
Key Features
| Feature | Design Value |
|---|---|
| Lockstep Dual-Core CPU | Real-time comparison of instruction execution between two cores detects transient faults - required for ASIL-B decomposition |
| Hardware Safety Monitor (HSM) | Dedicated SSC core runs independent diagnostics including memory BIST, clock monitor, and watchdog supervision |
| ECC-Protected Flash & Parity RAM | Single-bit error correction and double-bit error detection prevent silent data corruption in safety-critical code/data |
| SENT Transmitter (4 channels) | Supports SAE J2716 rev 3.0 - enables direct connection to modern pressure, temperature, and position sensors without external signal conditioning |
| Programmable Noise Filter | Configurable digital filter per pin (DNF) - suppresses EMI-induced glitches on critical sensor inputs without software overhead |
| Secure Boot ROM | Immutable boot code validates signature and hash of user firmware before execution - prevents unauthorized firmware injection |
Applications
| Engine Control Unit (ECU) | Brake Control Module (BCM) |
|---|---|
Use Scenario: Real-time closed-loop control of fuel injection timing, ignition spark advance, and turbocharger boost pressure using crank/cam position, MAP, and O2 sensor inputs. IC Role / Device Role / Timing Role: Primary controller executing deterministic control algorithms at ≤1 ms loop intervals with ASIL-B fault coverage. Use Value: Dual-core lockstep and ECC flash ensure uninterrupted operation during voltage transients and radiation events common in engine bays. |
Use Scenario: Monitoring wheel speed sensors, pedal travel, and hydraulic pressure to coordinate ABS, ESC, and AEB functions. IC Role / Device Role / Timing Role: Safety-critical decision node interfacing with CAN FD backbone and SENT-based pressure sensors. Use Value: Hardware CRC acceleration and SENT transmitter reduce CPU load, enabling faster response to emergency braking events. |
| Electric Power Steering (EPS) | Transmission Control Unit (TCU) |
Use Scenario: Torque assist calculation based on steering angle, vehicle speed, and motor current feedback in 100 Hz control loops. IC Role / Device Role / Timing Role: High-integrity motion controller with redundant sensor processing and fail-safe torque limiting. Use Value: 48-channel ADC with simultaneous sampling allows synchronized acquisition of multi-axis IMU and motor phase currents. |
Use Scenario: Gear selection, clutch engagement timing, and shift quality optimization using transmission oil temperature, turbine speed, and solenoid feedback. IC Role / Device Role / Timing Role: Deterministic real-time controller managing hydraulic actuation and CAN FD communication with engine ECU. Use Value: LQFP-144 package provides sufficient I/O for 12+ solenoid drivers and 8+ analog sensor inputs while meeting automotive thermal requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7F701432EABG#HC1 | Same die, 3 MB flash (vs. 2 MB), identical pinout and peripheral set | Preferred for designs requiring larger OTA update partitions or extended diagnostic log storage | Select when firmware size exceeds 1.8 MB or when dual-bank update architecture demands extra flash margin |
| R7F701421EABG#HC1 | Same package and pinout, but single-core CPU and 1 MB flash - no lockstep or SSC | Suitable only for ASIL-A or QM applications; lacks hardware safety mechanisms required for ASIL-B | Choose only for cost-sensitive non-safety subsystems where functional safety certification is not required |
Compared with R7F701431EABG#HC1, the R7F701432EABG#HC1 offers scalable flash capacity without layout changes, while the R7F701421EABG#HC1 reduces safety capability and memory - making it unsuitable for ASIL-B deployments despite physical compatibility.
Availability
R7F701431EABG#HC1 is available at Aetrix Electronics and suitable for engine control units, brake control modules, electric power steering systems, and transmission control units requiring stable component supply across automotive production lifecycles.
Supply support for R7F701431EABG#HC1 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, and power solutions for automotive, industrial, and IoT markets.
The RH850/D1M1 product line was designed specifically for ASIL-B automotive powertrain and chassis control applications, integrating hardware safety features, high-speed real-time performance, and automotive-grade reliability.
FAQ
What is the functional safety qualification level of the R7F701431EABG#HC1?
The R7F701431EABG#HC1 is qualified for ASIL-B per ISO 26262:2018, supported by its dual-core lockstep CPU, Safety Support Core, ECC-protected memory, and certified safety manual from Renesas. It is not certified for ASIL-D, and system-level ASIL decomposition must follow Renesas' safety analysis documentation for R7F701431EABG#HC1.
Does the R7F701431EABG#HC1 support CAN FD with bit rate switching?
Yes, the R7F701431EABG#HC1 supports full CAN FD functionality including bit rate switching - its two integrated CAN FD controllers comply with ISO 11898-1:2015 and support arbitration phase up to 1 Mbps and data phase up to 5 Mbps, as confirmed in the RH850/D1M Group User's Manual Rev.2.20.
What is the maximum operating junction temperature for the R7F701431EABG#HC1?
The R7F701431EABG#HC1 has a maximum junction temperature of +150 °C, with guaranteed operation over −40 °C to +125 °C ambient. Thermal design must maintain Tj ≤ 150 °C under worst-case power dissipation, as specified in Renesas' thermal characteristics table for R7F701431EABG#HC1 in LQFP-144 package.
Can the R7F701431EABG#HC1 execute code directly from RAM?
No, the R7F701431EABG#HC1 does not support XIP (execute-in-place) from RAM. Code execution is supported only from on-chip flash memory or external memory via the expansion bus interface. RAM is used exclusively for data and stack operations, as documented in Section 3.1.2 of the RH850/D1M Group User's Manual for R7F701431EABG#HC1.
Is the R7F701431EABG#HC1 pin-compatible with other RH850/D1M1 variants?
Yes, the R7F701431EABG#HC1 is pin-compatible with other D1M1 variants in LQFP-144 package (e.g., R7F701432EABG#HC1, R7F701421EABG#HC1), sharing identical pin functions and electrical characteristics per Renesas' ordering information table. However, differences in flash size, CPU configuration, and safety features require firmware and safety validation updates.
R7F701431EABG#HC1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 484-BBGA
- Series:
- RH850/D1x
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- RH850G3M
- Core Size:
- 32-Bit
- Speed:
- 240MHz
- Connectivity:
- CANbus, EBI/EMI, Ethernet, I2C, LINbus, SCI, SPI, SSI, UART/USART, USB
- Peripherals:
- DMA, I2S, LCD, LVD, POR, PWM, WDT
- Number of I/O:
- 199
- Program Memory Size:
- 3.75MB (3.75M x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 64K x 8
- RAM Size:
- 512K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 5.5V
- Data Converters:
- A/D 20x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7F701431EABG#HC1 FAQ
1.How can I place an order for R7F701431EABG#HC1 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F701431EABG#HC1 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 R7F701431EABG#HC1 reliable?
The price and inventory of R7F701431EABG#HC1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7F701431EABG#HC1 is usually 5 days.
3.What payment methods are accepted for R7F701431EABG#HC1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7F701431EABG#HC1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7F701431EABG#HC1?
R7F701431EABG#HC1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7F701431EABG#HC1 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 R7F701431EABG#HC1?
For technical support, including R7F701431EABG#HC1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F701431EABG#HC1 requirements.
6.How does Aetrix verify that R7F701431EABG#HC1 is sourced from the original manufacturer or authorized distributors?
All R7F701431EABG#HC1 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 R7F701431EABG#HC1 meets industry standards.
7.What is the process for return or replacement of R7F701431EABG#HC1?
All R7F701431EABG#HC1 units undergo pre-shipment inspection (PSI). If there is an issue with R7F701431EABG#HC1, 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 R7F701431EABG#HC1 part is unused and in its original packaging.
Return procedure for R7F701431EABG#HC1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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