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Renesas R7F701437EAFE-C#BA0
- Part No.:
- R7F701437EAFE-C#BA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
R7F701437EAFE-C#BA0.pdf
- Description:
- 32BIT MCU RH850/D1S1 1MB 144LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,584
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Product details
Overview
R7F701437EAFE-C#BA0 from Renesas Electronics is a 32-bit RH850/D1S1 automotive-grade microcontroller featuring a G3M CPU core, 1 MB Code Flash, 128 KB LRAM, and integrated RS-CANFD interface with 192 message buffers. It operates at up to 120 MHz, includes FPU and MPU, and targets real-time control in engine management, chassis systems, and ADAS domain controllers.
For engineers reviewing the R7F701437EAFE-C#BA0 datasheet, R7F701437EAFE-C#BA0 pinout, R7F701437EAFE-C#BA0 application, or R7F701437EAFE-C#BA0 equivalent, key selection criteria include CAN FD communication capability, 120 MHz deterministic execution, ECC-protected memory subsystems, and AEC-Q100 Grade 2 qualification for under-hood environments.
Technical Context
The R7F701437EAFE-C#BA0 implements a dual-PLL clock system (PLL0/PLL1) supporting independent domain clocking for CPU, peripherals, and CAN FD controllers. Its memory subsystem integrates ECC on Code Flash, Data Flash, LRAM, and RRAM, with dedicated Error Control Module (ECM) operating in master/checker mode for fault detection.
It features three RIIC interfaces (I²C), four CSIG channels, two CSIH units, four RLIN3 UART/LIN modules, and an Intelligent Stepper Motor Driver (ISM) with zero-point detection across four channels - all managed via PBUS crossbar interconnect and prioritized INTC interrupt controller.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | G3M 32-bit RISC core with FPU and MPU support for real-time deterministic execution |
| Max Operating Frequency | 120 MHz - enables sub-1 µs interrupt latency and tight control loop timing |
| Code Flash | 1 MB with ECC and 480 MHz PLL0-derived read access - supports secure firmware updates |
| Data Flash | 32 KB with ECC - provides robust non-volatile parameter storage for calibration data |
| RAM | 128 KB Local RAM + 16 KB Retention RAM - retains critical state during stop modes |
| CAN FD Interfaces | 3 × RS-CANFD channels, 192 total message buffers - enables high-bandwidth vehicle network backbone |
| ADC | 16-channel, 12-bit ADCE with hardware trigger synchronization - suitable for sensor signal acquisition |
| Package | 144-pin LQFP (20 × 20 mm, 0.5 mm pitch) - compatible with standard automotive PCB assembly |
Pinout & Package
Package: 144-pin LQFP (20 × 20 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RESETZ | Active-low reset input | Asynchronous reset assertion clears CPU, peripherals, and registers; requires external pull-up |
| PWRGD | Power-good monitor output | Open-drain signal indicating internal voltage regulators have stabilized - used for system sequencing |
| XT1/XT2 | Main oscillator crystal inputs | Supports 8–16 MHz crystal for primary clock source with ±0.5% stability requirement |
| X1/X2 | Sub-oscillator crystal inputs | Connects 32.768 kHz crystal for RTCA and low-power wake-up timing |
| REG0VCC/REG0VSS | Analog regulator power/ground | Supplies 3.3 V or 5 V to analog blocks including ADCE and reference circuitry |
| ISMVCC/ISMVSS | Intelligent Stepper Motor Driver supply | Dedicated power domain for ISM outputs - decoupling required per Renesas layout guidelines |
| EVCC/EVSS | External voltage monitor reference | Enables precise brown-out detection and supply monitoring for safety-critical operation |
Key Features
| Feature | Design Value |
|---|---|
| RS-CANFD Interface | Three fully independent CAN FD controllers with 192 message buffers - supports data rates up to 5 Mbps and payload up to 64 bytes |
| ECC Protection | End-to-end ECC on Code Flash, Data Flash, LRAM, RRAM, and cache tag/data RAMs - detects and corrects single-bit errors in real time |
| Functional Safety Support | Integrated CLMA clock monitors, ECM master/checker, POC, and WDTA - enables ASIL-B compliant system design per ISO 26262 |
| Stepper Motor Control | ISM unit with 4-channel drive, current sensing, and automatic zero-point detection - eliminates need for external homing sensors |
| Secure Boot & Cryptography | ICUSD cryptographic unit with AES-128/256, SHA-256, RSA-2048 - enables secure firmware authentication and encrypted OTA updates |
| Debug & Test | On-chip debug (OCD) with boundary scan and serial wire debug - supports full visibility into CPU state and memory without halting real-time operation |
Applications
| Engine Control Unit (ECU) | Brake Control Module |
|---|---|
Use Scenario: Real-time combustion timing, fuel injection pulse width, and knock detection in gasoline/diesel engines. IC Role / Device Role / Timing Role: Primary controller executing safety-critical ASIL-B software with deterministic 120 MHz execution and dual-WDT supervision. Use Value: ECC-protected 1 MB Code Flash ensures firmware integrity; RS-CANFD enables high-speed actuator feedback and diagnostics over vehicle backbone. |
Use Scenario: ABS/ESC hydraulic pressure modulation, wheel speed processing, and fail-safe valve control in wet/icy conditions. IC Role / Device Role / Timing Role: Safety-managed controller with CLMA clock monitoring, ECM error checking, and ASIL-B runtime verification. Use Value: 16-channel 12-bit ADCE acquires wheel speed sensor signals with hardware-triggered sampling; ISM drives stepper-valve actuators with built-in zero-point detection. |
| ADAS Domain Controller | Electric Power Steering (EPS) |
Use Scenario: Sensor fusion hub aggregating radar, camera, and ultrasonic inputs for lane-keeping and AEB decision logic. IC Role / Device Role / Timing Role: High-integrity communication gateway with three RIIC buses for sensor I/O and dual RS-CANFD for vehicle network interfacing. Use Value: 128 KB LRAM supports real-time buffer management for multi-sensor streaming; ICUSD accelerates signature verification for secure sensor firmware updates. |
Use Scenario: Torque assist calculation, motor phase control, and road feel emulation using brushless DC motor and torque sensor feedback. IC Role / Device Role / Timing Role: Real-time motor controller with PWM generators (24 total, 12 with diagnostic capability) and synchronized ADC sampling. Use Value: Four-channel ISM directly drives EPS motor windings; 32 KB Data Flash stores torque maps and adaptive steering parameters with ECC protection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7F701417EAFE-C#BA0 | Same D1S1 platform but equipped with RS-CAN (not CAN FD); identical package, memory, and peripheral count except CAN interface type | Suitable for legacy CAN networks where FD bandwidth and payload expansion are not required | Select when cost-sensitive CAN 2.0B communication suffices and CAN FD upgrade path is deferred |
| R7F701452EAFE-C#AA0 | D1L1-series variant with 2 MB Code Flash, 256 KB LRAM, 6-channel ISM, and Serial Flash I/F - larger memory and enhanced motor control capability | Targeted at higher-tier ECUs requiring extended code space, additional stepper channels, or external flash boot flexibility | Choose when application demands >1 MB firmware image size or six-axis motor control with SFMA interface |
Compared with R7F701437EAFE-C#BA0, the R7F701417EAFE-C#BA0 offers identical footprint and timing but lacks CAN FD throughput, while the R7F701452EAFE-C#AA0 delivers greater memory headroom and motor channel count at the cost of larger die size and higher power consumption.
Availability
R7F701437EAFE-C#BA0 is available at Aetrix Electronics and suitable for engine control units, brake control modules, and ADAS domain controllers requiring stable component supply, long-term automotive lifecycle support, and AEC-Q100 Grade 2 qualification.
Supply support for R7F701437EAFE-C#BA0 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 family - including the R7F701437EAFE-C#BA0 - was designed specifically for functional safety-critical automotive applications, emphasizing ASIL-B/C compliance, ECC memory protection, and robust real-time performance in harsh environments.
FAQ
What is the maximum operating temperature range for the R7F701437EAFE-C#BA0?
The R7F701437EAFE-C#BA0 is qualified per AEC-Q100 Grade 2, supporting operation from −40 °C to +105 °C ambient temperature. This rating applies to the full device including CPU, peripherals, and memory subsystems, and is validated under continuous operation with specified voltage and thermal derating conditions.
Does the R7F701437EAFE-C#BA0 support secure boot functionality?
Yes, the R7F701437EAFE-C#BA0 includes the Intelligent Cryptographic Unit (ICUSD) which enables secure boot via hardware-accelerated SHA-256 and RSA-2048 verification of signed firmware images stored in Code Flash. Boot ROM enforces chain-of-trust validation before transferring control to user application code.
How many CAN FD message buffers does the R7F701437EAFE-C#BA0 provide?
The R7F701437EAFE-C#BA0 integrates three RS-CANFD controllers with a total of 192 message buffers distributed across all channels. Each buffer supports configurable ID filtering, FIFO/queue modes, and hardware timestamping - enabling concurrent handling of high-priority control messages and diagnostic traffic.
Is the R7F701437EAFE-C#BA0 pin-compatible with other RH850/D1S1 devices?
Yes, the R7F701437EAFE-C#BA0 shares the same 144-pin LQFP package and pin assignment with other D1S1 variants including R7F701417EAFE-C#BA0. All GPIO, power, clock, reset, and debug pins occupy identical positions - enabling hardware reuse across CAN and CAN FD versions of the D1S1 family.
What debug interfaces are supported by the R7F701437EAFE-C#BA0?
The R7F701437EAFE-C#BA0 supports on-chip debug (OCD) via Serial Wire Debug (SWD) interface, compliant with ARM CoreSight standards. It also includes IEEE 1149.1 boundary scan for manufacturing test, and allows full register/memory access, breakpoint setting, and real-time trace without halting CPU execution.
R7F701437EAFE-C#BA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 144-LQFP
- Series:
- RH850/D1S1
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- RH850G3M
- Core Size:
- 32-Bit
- Speed:
- 120MHz
- Connectivity:
- CANbus, CSI, I2C, LINbus, UART/USART
- Peripherals:
- DMA, I2S, LCD, PWM, Temp Sensor, WDT
- Number of I/O:
- -
- Program Memory Size:
- 1MB (1M x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 32K x 8
- RAM Size:
- 144K x 8
- Voltage - Supply (Vcc/Vdd):
- 3V ~ 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:
R7F701437EAFE-C#BA0 FAQ
1.How can I place an order for R7F701437EAFE-C#BA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F701437EAFE-C#BA0 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 R7F701437EAFE-C#BA0 reliable?
The price and inventory of R7F701437EAFE-C#BA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7F701437EAFE-C#BA0 is usually 5 days.
3.What payment methods are accepted for R7F701437EAFE-C#BA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7F701437EAFE-C#BA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7F701437EAFE-C#BA0?
R7F701437EAFE-C#BA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7F701437EAFE-C#BA0 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 R7F701437EAFE-C#BA0?
For technical support, including R7F701437EAFE-C#BA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F701437EAFE-C#BA0 requirements.
6.How does Aetrix verify that R7F701437EAFE-C#BA0 is sourced from the original manufacturer or authorized distributors?
All R7F701437EAFE-C#BA0 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 R7F701437EAFE-C#BA0 meets industry standards.
7.What is the process for return or replacement of R7F701437EAFE-C#BA0?
All R7F701437EAFE-C#BA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7F701437EAFE-C#BA0, 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 R7F701437EAFE-C#BA0 part is unused and in its original packaging.
Return procedure for R7F701437EAFE-C#BA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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