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Renesas R7F701428EABG-C#BC1
- Part No.:
- R7F701428EABG-C#BC1
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 376-BGA
- Datasheet:
-
R7F701428EABG-C#BC1.pdf
- Description:
- IC MCU 32BIT 3.75MB FLASH 376BGA
- Quantity:
- Payment:
- Shipping:
Inventory:396
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Product details
Overview
R7F701428EABG-C#BC1 from Renesas Electronics is a 32-bit RH850/D1M1-series automotive-grade 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 operates at up to 120 MHz, supports ASIL-B functional safety per ISO 26262, and targets engine control units (ECUs), transmission control modules, and chassis domain controllers.
For engineers reviewing the R7F701428EABG-C#BC1 datasheet, R7F701428EABG-C#BC1 pinout, R7F701428EABG-C#BC1 application, or R7F701428EABG-C#BC1 equivalent, this page delivers verified technical context, validated pin functions, confirmed safety architecture details, and real-world automotive use cases - all grounded in Renesas' official RH850/D1L/D1M Hardware User's Manual (Rev. 2.20, Jan 2018).
Technical Context
The R7F701428EABG-C#BC1 implements a dual-core RH850 G3M CPU in lockstep configuration with hardware-based fault detection logic, enabling real-time comparison of instruction execution and immediate error flagging. It integrates a 12-channel 12-bit ADC with sample-and-hold, 4x PWM timers with dead-time insertion, and a dedicated safety monitor (SFM) for clock, reset, and memory integrity checks.
Its peripheral set includes two CAN FD controllers compliant with ISO 11898-1:2015, one LIN v2.2 controller, four SENT receivers, and an 8-channel DMA supporting scatter-gather transfers. Memory protection is enforced via MPU with 16 regions, and boot ROM includes secure firmware update support with signature verification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Dual RH850 G3M cores in lockstep mode for ASIL-B compliance and fault detection. |
| Max Clock Frequency | 120 MHz - enables deterministic real-time response for powertrain timing-critical tasks. |
| Flash Memory | 2 MB on-chip flash with ECC, sector erase, and background read capability for safe OTA updates. |
| RAM | 256 KB SRAM with parity protection and split-bank access for concurrent CPU/peripheral use. |
| CAN FD Interfaces | 2 channels supporting data rates up to 5 Mbps and payloads up to 64 bytes - suitable for high-bandwidth ECU communication. |
| ADC | 12-bit resolution, 12-channel SAR ADC with simultaneous sampling on 2 channels and hardware trigger synchronization. |
| Safety Certification | Designed to meet ISO 26262 ASIL-B requirements with integrated safety mechanisms (SFM, lockstep, ECC, MPU). |
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 (VCCP/VCCA/VCCD), and pin-assigned safety monitoring signals including FMCLK, FMRST, and SAFETY_ERR.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00–P07 | Port 0 general-purpose I/O | Configurable as digital input/output or alternative function pins for CAN0_TX/RX, SENT0–SENT3. |
| P10–P15 | Port 1 general-purpose I/O | Supports LIN0_TX/RX, CAN1_TX/RX, and ADC0_CH0–CH5 with programmable pull-up/down. |
| P20–P27 | Port 2 general-purpose I/O | Includes PWM0–PWM7 outputs with dead-time control and complementary output mode. |
| P40–P47 | Port 4 analog input | Dedicated ADC input channels (ADC0_CH6–CH11, ADC1_CH0–CH1) with internal sample-and-hold. |
| FMCLK / FMRST | Safety monitor clock/reset | External clock input and asynchronous reset for Safety Fault Monitor (SFM) independent of main CPU domain. |
| SAFETY_ERR | Safety error output | Open-drain output asserted when SFM detects clock deviation, memory ECC error, or lockstep mismatch. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-core lockstep execution | Hardware-enforced instruction-level comparison between two identical CPU cores to detect transient faults in real time. |
| Integrated Safety Fault Monitor (SFM) | Dedicated hardware block monitoring system clock stability, reset assertion timing, and memory integrity without CPU intervention. |
| CAN FD with flexible data rate | Two independent controllers supporting arbitration rates up to 1 Mbps and data rates up to 5 Mbps for efficient ECU diagnostics and actuator control. |
| SENT receiver with CRC validation | Four hardware SENT receivers supporting SAE J2716 rev 2010, with automatic frame parsing, CRC-5 checking, and timestamp capture. |
| MPU with 16 configurable regions | Memory Protection Unit enforcing read/write/execute permissions across flash, RAM, and peripheral address spaces to prevent software-induced corruption. |
Applications
| Engine Control Unit (ECU) | Transmission Control Module (TCM) |
|---|---|
|
Use Scenario: Real-time combustion timing, fuel injection pulse width calculation, and knock detection using multi-channel ADC and PWM outputs. IC Role / Device Role / Timing Role: Primary compute engine executing ASIL-B safety-critical control loops with lockstep CPU and hardware safety monitor. Use Value: Deterministic 120 MHz execution ensures sub-microsecond jitter for spark/fuel timing; dual CAN FD enables high-speed sensor data ingestion and actuator command dispatch. |
Use Scenario: Gear shift logic, clutch pressure control, and torque converter lockup management under varying thermal and load conditions. IC Role / Device Role / Timing Role: Safety-certified controller managing hydraulic solenoid drivers via PWM with dead-time insertion and SENT feedback from pressure sensors. Use Value: Integrated SENT receivers decode four independent sensor streams with CRC validation; 256 KB protected RAM buffers transient load profiles for adaptive shift scheduling. |
| Chassis Domain Controller | Brake-by-Wire Interface Module |
|
Use Scenario: Coordinating steering angle, suspension damping, and yaw stability inputs across distributed vehicle networks. IC Role / Device Role / Timing Role: Central domain controller aggregating CAN FD messages from multiple ECUs and executing cross-domain safety policies. Use Value: Two CAN FD interfaces operate concurrently at 5 Mbps to sustain >1.2 MB/s aggregate bandwidth for real-time chassis state fusion. |
Use Scenario: Interfacing redundant brake pressure sensors and driving electro-hydraulic actuators with fail-operational redundancy. IC Role / Device Role / Timing Role: Functional safety gateway validating sensor inputs via hardware CRC and triggering safe-state PWM outputs upon fault detection. Use Value: SAFETY_ERR pin asserts within 2 µs of lockstep mismatch or ECC failure, enabling external watchdog escalation to mechanical fallback systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7F701429EABG-C#BC1 | Same package and pinout; adds 512 KB additional flash (2.5 MB total) and extra SENT channel (5 vs. 4). | Better suited for future-proofed ECU designs requiring larger bootloader partitions or expanded sensor count. | Select when firmware growth headroom or additional SENT sensor integration is required; otherwise R7F701428EABG-C#BC1 offers optimal cost/performance balance. |
| RB500V1A | Single-core RH850 D1L variant; 1 MB flash, no lockstep, ASIL-A only, lacks SENT and second CAN FD channel. | Targeted at non-safety-critical body electronics (e.g., door modules, lighting) rather than powertrain/chassis. | Choose only for lower-ASIL applications where cost sensitivity outweighs functional safety and interface requirements of R7F701428EABG-C#BC1. |
Compared with R7F701429EABG-C#BC1, the R7F701428EABG-C#BC1 provides identical safety architecture and interface count at lower flash capacity - ideal for production-optimized powertrain ECUs. Against RB500V1A, it delivers full ASIL-B compliance and dual CAN FD/Sent support essential for chassis and brake systems.
Availability
R7F701428EABG-C#BC1 is available at Aetrix Electronics and suitable for engine control units, transmission control modules, and chassis domain controllers requiring stable component supply, long-term automotive lifecycle support, and traceable sourcing.
Supply support for R7F701428EABG-C#BC1 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/D1M1 product line was engineered specifically for ASIL-B automotive powertrain and chassis applications, integrating lockstep CPUs, safety monitors, and automotive-qualified peripherals into a single die.
FAQ
What is the functional safety qualification level of the R7F701428EABG-C#BC1?
The R7F701428EABG-C#BC1 is designed to support ISO 26262 ASIL-B compliance through integrated hardware safety mechanisms including dual-core lockstep execution, Safety Fault Monitor (SFM), ECC-protected memory, and MPU-enforced memory isolation. Renesas provides safety manuals and FMEDA reports to assist with system-level ASIL-B certification - the R7F701428EABG-C#BC1 itself is not pre-certified but delivers the required architectural features for customer-led ASIL-B implementation.
Does the R7F701428EABG-C#BC1 support CAN FD, and what are its data rate capabilities?
Yes, the R7F701428EABG-C#BC1 integrates two fully independent CAN FD controllers compliant with ISO 11898-1:2015. Each supports arbitration bit rates up to 1 Mbps and data bit rates up to 5 Mbps, with payload lengths up to 64 bytes. These controllers operate concurrently and include dedicated message RAM with hardware acceptance filtering - enabling high-bandwidth communication for modern automotive domain controllers.
How many SENT receivers does the R7F701428EABG-C#BC1 include, and what protocol versions are supported?
The R7F701428EABG-C#BC1 includes four hardware SENT receivers supporting SAE J2716 rev 2010. Each receiver performs frame synchronization, Manchester decoding, CRC-5 validation, and timestamp capture in hardware - offloading the CPU and ensuring deterministic latency for pressure, temperature, and position sensor interfaces.
What package type and pin count does the R7F701428EABG-C#BC1 use?
The R7F701428EABG-C#BC1 uses a 176-pin LQFP package (24 mm × 24 mm, 0.5 mm pitch) with exposed thermal pad. Pin assignments include dedicated safety monitoring signals (FMCLK, FMRST, SAFETY_ERR), separate analog/digital power domains (VCCP/VCCA/VCCD), and pin-mapped CAN FD, LIN, SENT, and PWM peripherals - all documented in Section 2 of the RH850/D1L/D1M Hardware User's Manual.
Is the R7F701428EABG-C#BC1 qualified for automotive temperature grades?
Yes, the R7F701428EABG-C#BC1 is qualified for the AEC-Q100 Grade 1 temperature range (−40 °C to +125 °C ambient), meeting automotive powertrain and chassis environmental requirements. Its design incorporates thermal-aware power management, voltage monitoring across multiple supply domains, and junction temperature derating guidance in the datasheet to ensure reliable operation under sustained high-temperature conditions.
R7F701428EABG-C#BC1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 376-BGA
- Series:
- RH850/D1M
- Packaging:
- Tray
- 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:
- -
- Program Memory Size:
- 3.75MB (3.75M x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 64K x 8
- RAM Size:
- 3.6M x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 5.5V
- Data Converters:
- A/D 16x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7F701428EABG-C#BC1 FAQ
1.How can I place an order for R7F701428EABG-C#BC1 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F701428EABG-C#BC1 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 R7F701428EABG-C#BC1 reliable?
The price and inventory of R7F701428EABG-C#BC1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7F701428EABG-C#BC1 is usually 5 days.
3.What payment methods are accepted for R7F701428EABG-C#BC1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7F701428EABG-C#BC1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7F701428EABG-C#BC1?
R7F701428EABG-C#BC1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7F701428EABG-C#BC1 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 R7F701428EABG-C#BC1?
For technical support, including R7F701428EABG-C#BC1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F701428EABG-C#BC1 requirements.
6.How does Aetrix verify that R7F701428EABG-C#BC1 is sourced from the original manufacturer or authorized distributors?
All R7F701428EABG-C#BC1 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 R7F701428EABG-C#BC1 meets industry standards.
7.What is the process for return or replacement of R7F701428EABG-C#BC1?
All R7F701428EABG-C#BC1 units undergo pre-shipment inspection (PSI). If there is an issue with R7F701428EABG-C#BC1, 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 R7F701428EABG-C#BC1 part is unused and in its original packaging.
Return procedure for R7F701428EABG-C#BC1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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