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Renesas R7F7016943AFP-C#KA1
- Part No.:
- R7F7016943AFP-C#KA1
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
R7F7016943AFP-C#KA1.pdf
- Description:
- 32BIT MCU RH850/F1KM T&R
- Quantity:
- Payment:
- Shipping:
Inventory:3,789
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Product details
Overview
R7F7016943AFP-C#KA1 from Renesas Electronics is a 32-bit RH850/F1K automotive microcontroller featuring dual-core lockstep CPU architecture, 3MB on-chip flash memory, and integrated ASIL-B compliant safety mechanisms including ECC for flash and RAM, BIST, and windowed watchdog timers. It operates at up to 160 MHz, supports CAN FD (up to 5 channels), and is qualified for AEC-Q100 Grade 1 (−40°C to +125°C). It targets engine control units and transmission control modules requiring functional safety compliance.
For engineers reviewing the R7F7016943AFP-C#KA1 datasheet, R7F7016943AFP-C#KA1 pinout, R7F7016943AFP-C#KA1 application, or R7F7016943AFP-C#KA1 equivalent, key selection criteria include ASIL-B hardware safety certification, dual-core lockstep execution integrity, CAN FD interface count and timing accuracy, flash ECC coverage scope, and package thermal performance under sustained 160 MHz operation.
Technical Context
The R7F7016943AFP-C#KA1 implements a dual-core RH850 G3KH CPU with lockstep comparison logic that continuously validates instruction execution across both cores. Its safety architecture includes dedicated error detection circuits for bus interfaces, memory controllers, and peripheral bridges - all feeding into a centralized Safety Management Unit (SMU) supporting ISO 26262 ASIL-B decomposition.
It integrates a 12-bit, 48-channel ADC with hardware-triggered sampling and built-in self-test, plus five CAN FD controllers with bit-rate switching support up to 5 Mbps and programmable sample points. The device uses a 176-pin LQFP package with dedicated safety-related pins routed to separate power domains and isolated ground planes per ISO 26262 layout guidance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Dual RH850 G3KH cores in lockstep mode for ASIL-B fault detection |
| Max Clock Frequency | 160 MHz - enables real-time deterministic execution of complex engine control algorithms |
| Flash Memory | 3 MB with ECC protection - ensures data integrity during over-the-air updates and runtime code execution |
| RAM | 512 KB SRAM with ECC and parity - supports safe storage of critical runtime variables and stack data |
| CAN FD Channels | 5 independent controllers - allows concurrent high-speed communication with ECU clusters, sensors, and actuators |
| ADC Resolution & Channels | 12-bit resolution, 48 input channels - provides precise analog sensing for throttle position, oxygen, and temperature signals |
| Operating Temperature | −40°C to +125°C (AEC-Q100 Grade 1) - validated for under-hood deployment in gasoline and diesel powertrains |
| Safety Certification | ISO 26262 ASIL-B compliant hardware - meets requirements for engine management without additional external safety monitors |
Pinout & Package
Package: 176-pin LQFP (24 mm × 24 mm, 0.5 mm pitch), thermally enhanced with exposed thermal pad for automotive under-hood thermal dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC_MAIN | Main core supply (1.2 V) | Power domain for CPU, cache, and system bus - requires low-noise regulation and decoupling per Renesas AN-901 |
| VCC_IO | I/O supply (3.3 V) | Independent rail for GPIO, CAN transceivers, and ADC reference - enables mixed-voltage interfacing |
| RESETB | Active-low reset input | Asynchronous reset assertion resets all logic domains; must be held low ≥100 ns after power stabilization |
| CLKIN | External crystal oscillator input | Accepts 8–20 MHz crystal for main PLL clock generation; supports fail-safe fallback to internal RC oscillator |
| CAN0_TX / CAN0_RX | CAN FD channel 0 differential I/O | High-speed physical layer interface compliant with ISO 11898-2; supports bit rates up to 5 Mbps with programmable sample point |
| AD00–AD47 | Analog input channels | 48 dedicated pins mapped to 12-bit SAR ADC - each supports hardware-triggered conversion and window compare function |
| SMU_ERR | Safety Management Unit error output | Open-drain signal asserted on detected hardware fault (e.g., ECC double-bit error, lockstep mismatch) - connects to system-level fail-safe controller |
Key Features
| Feature | Design Value |
|---|---|
| Dual-core lockstep execution | Hardware-enforced instruction-by-instruction comparison between two identical CPU cores eliminates undetected transient faults |
| On-chip flash ECC with scrubbing | Single-bit error correction and double-bit error detection applied during read/write cycles, plus background memory scrubbing |
| Integrated Safety Management Unit (SMU) | Centralized monitoring of CPU, memory, peripherals, and clocks with configurable error response (interrupt, NMI, or reset) |
| Hardware-accelerated CRC engine | Dedicated module supporting CRC-8/16/32 with polynomial configuration - offloads checksum computation from CPU for OTA update validation |
| Programmable windowed watchdog timer | Two-stage timeout mechanism requiring precise feed sequence within defined time windows - prevents software hang or malicious tampering |
| ASIL-B ready peripheral set | CAN FD, ADC, PWM, and timer modules include built-in self-test, redundancy, and error reporting aligned with ISO 26262 Part 5 Annex D |
Applications
| Engine Control Unit (ECU) | Automatic Transmission Control Module (TCM) |
|---|---|
|
Use Scenario: Real-time closed-loop combustion control using crankshaft/camshaft position, air mass flow, and exhaust gas oxygen feedback. IC Role / Device Role / Timing Role: Primary safety-critical controller executing fuel injection timing, spark advance, and knock detection algorithms with <50 µs latency guarantees. Use Value: Dual-core lockstep and flash ECC ensure deterministic behavior and data integrity during misfire events or voltage transients common in 12 V automotive systems. |
Use Scenario: Gear shift scheduling, clutch pressure modulation, and torque converter lock-up control based on vehicle speed, throttle, and engine load. IC Role / Device Role / Timing Role: High-integrity motion controller managing PWM-driven solenoids and monitoring hydraulic pressure sensors via 12-bit ADC with hardware triggering. Use Value: Five CAN FD channels enable synchronized communication with engine ECU, ABS, and body control modules at 2+ Mbps, reducing bus arbitration delays. |
| Electric Power Steering (EPS) Assist Controller | Brake-by-Wire System Supervisor |
|
Use Scenario: Torque assist calculation and motor current control for column-assist EPS systems with redundancy requirements. IC Role / Device Role / Timing Role: Secondary safety controller performing cross-checks against primary EPS MCU and validating sensor fusion outputs (torque, angle, current). Use Value: SMU_ERR pin provides immediate hardware-level fault signaling to main EPS MCU, enabling fail-operational transition within 10 ms. |
Use Scenario: Monitoring brake pedal travel, wheel speed, and hydraulic pressure while coordinating actuator commands across redundant brake control paths. IC Role / Device Role / Timing Role: ASIL-B supervisor overseeing functional safety status of dual brake ECUs and initiating safe degradation (e.g., reduced braking force) on fault detection. Use Value: Integrated windowed watchdog and BIST-enabled ADC allow autonomous health verification without host CPU intervention - critical for brake system independence. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7F7016883AFP-C#KA1 | 2 MB flash, 384 KB RAM, same pinout and peripheral set but reduced memory capacity | Suitable for cost-optimized TCM or EPS variants with smaller firmware footprint | Select when application firmware size is ≤2 MB and no future feature expansion is planned |
| SPC5744PFK1AKLQZ | Power Architecture-based, 3 MB flash, ASIL-D capable, different instruction set and toolchain | Targeted at higher-ASIL systems requiring triple modular redundancy or more aggressive fault containment | Choose only if ASIL-D certification is mandatory and existing RH850 software investment is not required |
Compared with R7F7016943AFP-C#KA1, the R7F7016883AFP-C#KA1 offers identical safety architecture and pin compatibility at lower memory cost, while the SPC5744PFK1AKLQZ provides ASIL-D readiness but demands full software re-architecture and lacks RH850 ecosystem alignment.
Availability
R7F7016943AFP-C#KA1 is available at Aetrix Electronics and suitable for engine control units, automatic transmission modules, and electric power steering systems requiring stable component supply across multi-year automotive production programs.
Supply support for R7F7016943AFP-C#KA1 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 products for automotive, industrial, and IoT markets.
The RH850/F1K product line delivers ASIL-B certified 32-bit MCUs optimized for powertrain and chassis control applications, with emphasis on functional safety, real-time determinism, and automotive-grade reliability.
FAQ
What safety certifications does the R7F7016943AFP-C#KA1 hold?
The R7F7016943AFP-C#KA1 is designed to meet ISO 26262 ASIL-B requirements at the hardware level, with documentation support for FMEDA, FTA, and safety manual compliance. It includes lockstep CPU cores, ECC-protected memories, and a dedicated Safety Management Unit. Renesas provides certified safety libraries and diagnostic software packages for R7F7016943AFP-C#KA1 to accelerate ASIL-B system integration.
Does the R7F7016943AFP-C#KA1 support CAN FD with bit-rate switching?
Yes, the R7F7016943AFP-C#KA1 integrates five fully independent CAN FD controllers, each supporting bit-rate switching up to 5 Mbps on the data phase and 1 Mbps on the arbitration phase. Each controller features programmable sample points, flexible data field length (up to 64 bytes), and hardware message filtering - all accessible via the RH850's unified peripheral register map.
What is the maximum operating frequency and associated voltage requirement for the R7F7016943AFP-C#KA1?
The R7F7016943AFP-C#KA1 operates at a maximum frequency of 160 MHz, requiring a regulated 1.2 V ±3% supply on VCC_MAIN. This voltage must be stabilized before releasing RESETB, and the device specifies a minimum 100 ns delay between VCC_MAIN reaching regulation and RESETB deassertion per Renesas Hardware Design Guide Rev.1.10 Section 3.2.
How is flash memory protected against corruption in the R7F7016943AFP-C#KA1?
The R7F7016943AFP-C#KA1 implements end-to-end ECC protection across its 3 MB on-chip flash, covering read, write, and erase operations. Single-bit errors are corrected transparently; double-bit errors trigger an interrupt or NMI via the SMU. Additionally, flash programming includes hardware checksum verification and write-protection registers to prevent accidental modification during runtime.
Is the R7F7016943AFP-C#KA1 pin-compatible with other RH850/F1K devices?
The R7F7016943AFP-C#KA1 uses a 176-pin LQFP package shared with several RH850/F1K variants, including the R7F7016883AFP-C#KA1. Pin functions are identical across these variants for power, reset, clock, JTAG, CAN, and ADC signals. However, some peripheral-specific pins (e.g., Ethernet MAC or additional CAN channels) may be No Connect on R7F7016943AFP-C#KA1 - refer to Section 2.1 Pin Connection Diagram in the Hardware Manual for exact mapping.
R7F7016943AFP-C#KA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-LQFP
- Series:
- RH850/F1KM-S1
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- RH850G3KH
- Core Size:
- 32-Bit
- Speed:
- 120MHz
- Connectivity:
- CANbus, CSI, I2C, LINbus, SPI, UART/USART
- Peripherals:
- DMA, LVD, PWM, WDT
- Number of I/O:
- 33
- Program Memory Size:
- 768KB (768K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 64K x 8
- RAM Size:
- 96K x 8
- Voltage - Supply (Vcc/Vdd):
- 3V ~ 5.5V
- Data Converters:
- A/D 4x10b, 8x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7F7016943AFP-C#KA1 FAQ
1.How can I place an order for R7F7016943AFP-C#KA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F7016943AFP-C#KA1 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 R7F7016943AFP-C#KA1 reliable?
The price and inventory of R7F7016943AFP-C#KA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7F7016943AFP-C#KA1 is usually 5 days.
3.What payment methods are accepted for R7F7016943AFP-C#KA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7F7016943AFP-C#KA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7F7016943AFP-C#KA1?
R7F7016943AFP-C#KA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7F7016943AFP-C#KA1 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 R7F7016943AFP-C#KA1?
For technical support, including R7F7016943AFP-C#KA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F7016943AFP-C#KA1 requirements.
6.How does Aetrix verify that R7F7016943AFP-C#KA1 is sourced from the original manufacturer or authorized distributors?
All R7F7016943AFP-C#KA1 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 R7F7016943AFP-C#KA1 meets industry standards.
7.What is the process for return or replacement of R7F7016943AFP-C#KA1?
All R7F7016943AFP-C#KA1 units undergo pre-shipment inspection (PSI). If there is an issue with R7F7016943AFP-C#KA1, 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 R7F7016943AFP-C#KA1 part is unused and in its original packaging.
Return procedure for R7F7016943AFP-C#KA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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