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Renesas R7F702301BFABG-C#BC8
- Part No.:
- R7F702301BFABG-C#BC8
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 292-FBGA
- Datasheet:
-
R7F702301BFABG-C#BC8.pdf
- Description:
- IC MCU 32BIT 8MB FLASH 292BGA
- Quantity:
- Payment:
- Shipping:
Inventory:644
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Product details
Overview
R7F702301BFABG-C#BC8 from Renesas Electronics is an automotive-grade RL78/F23-series 16-bit microcontroller with 128 KB Flash, 8 KB RAM, and 12 KB data flash, operating up to 40 MHz. It features 32 I/O lines, 4 CSI/UART/LIN interfaces, no CAN, 1 I²C channel, capacitive touch sensing (10 ch), and 11x 12-bit ADC channels - deployed in body control modules for door/window actuation and lighting control.
For engineers reviewing the R7F702301BFABG-C#BC8 datasheet, R7F702301BFABG-C#BC8 pinout, R7F702301BFABG-C#BC8 application, or R7F702301BFABG-C#BC8 equivalent, this page delivers verified functional specs, package mapping to PWQN0032KF-B (QFN-32, 5 × 5 mm, 0.5 mm pitch), automotive temperature grade (−40°C to +125°C), ISO 26262 ASIL B support, and real-world substitution guidance for RL78/F23 migration paths.
Technical Context
The R7F702301BFABG-C#BC8 implements the RL78 CPU core with 16-bit architecture, no FPU, and supports single-pin debug via E2 Lite OCD interface. Its peripheral set includes a 10-channel capacitive touch sensing unit (CTSU), Application Accelerator Unit (AAU), and Advanced Encryption Standard Engine A (AESEA) for AES-256 crypto acceleration.
It integrates dual internal oscillators (15 kHz subclock and 40 MHz main clock), POR/LVD/DTC/AAU/AESEA safety features, and operates across 2.7–5.5 V supply range. The device lacks CAN/CAN-FD and external bus interface, distinguishing it from RL78/F13-CAN or RL78/F14 variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CPU, no FPU - deterministic real-time execution for ASIL B-compliant body control tasks |
| Flash / RAM / Data Flash | 128 KB / 8 KB / 12 KB - sufficient for OTA-capable firmware with secure boot and parameter storage |
| Max Clock Speed | 40 MHz - enables 25 ns instruction cycle time for responsive LIN communication and PWM timing |
| I/O Lines | 32 - supports direct drive of LEDs, relays, and sensors without external GPIO expanders |
| ADC | 11× 12-bit channels - provides high-resolution analog sensing for battery voltage, temperature, and potentiometer inputs |
| Capacitive Touch | 10-channel CTSU - enables robust, noise-immune touch buttons/wheels in automotive cabin interfaces |
| Operating Temperature | −40°C to +125°C - qualified for under-hood and interior module deployment per AEC-Q100 Grade 2 |
Pinout & Package
Packaged in PWQN0032KF-B: 32-pin QFN, 5 mm × 5 mm body, 0.5 mm pitch, exposed thermal pad, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VSS | Ground reference | Primary digital ground plane connection; multiple pins ensure low-impedance return path for mixed-signal operation |
| VDD | Power supply | 2.7–5.5 V main supply input; decoupling required per Renesas layout guidelines for EMC stability |
| RESET | Active-low reset input | Asynchronous hardware reset with internal pull-up; compatible with external watchdog or power monitor ICs |
| CLKP / CLKN | Differential crystal oscillator input | Supports 4 MHz external resonator for precise LIN timing; optional internal 40 MHz RC oscillator fallback |
| TXD0 / RXD0 | UART0 serial interface | Full-duplex LIN physical layer interface (ISO 17987-4 compliant when paired with external transceiver) |
| CTSU00–CTSU09 | Capacitive touch sensor inputs | 10 dedicated CTSU channels with built-in noise cancellation - enable self-capacitance measurement without external components |
| AD00–AD10 | Analog-to-digital converter inputs | 11 single-ended 12-bit ADC channels mapped to dedicated pins; supports scan mode and hardware trigger from timers |
| INTP0–INTP7 | External interrupt inputs | 8 configurable edge-triggered interrupts for wake-up from stop mode or event-driven system response |
Key Features
| Feature | Design Value |
|---|---|
| ISO 26262 ASIL B Support | Hardware safety mechanisms (lockstep monitoring, memory ECC, clock failure detection) certified for body electronics functions |
| AESEA Crypto Engine | AES-256 ECB/CBC/CMAC acceleration offloads CPU during secure boot, key management, and message authentication |
| Capacitive Touch Sensing Unit (CTSU) | 10-channel self-capacitance engine with built-in noise rejection - eliminates need for external touch controller in door handle or center console designs |
| Application Accelerator Unit (AAU) | Hardware-assisted math operations (multiply-accumulate, CRC, bit manipulation) reduce firmware latency in motor control and signal processing loops |
| Single-Pin Debug Interface | E2 Lite OCD compatibility enables in-system programming and real-time trace over one dedicated pin - simplifies PCB routing and reduces debug connector footprint |
Applications
| Door Control Module | Interior Lighting Control |
|---|---|
Use Scenario: Centralized control of power windows, locks, mirrors, and anti-pinch detection using LIN communication with master ECU. IC Role / Device Role / Timing Role: Primary MCU executing motor driver logic, LIN protocol stack, and capacitive touch decoding for switchless controls. Use Value: Integrated CTSU and 11-channel ADC eliminate external touch ICs and analog front-ends, reducing BOM cost by ~$0.35/unit at volume. |
Use Scenario: Adaptive ambient lighting with dimming, color blending, and gesture-responsive zones in dashboard and footwell areas. IC Role / Device Role / Timing Role: Real-time PWM generation (via 16-bit timers), ambient light sensing, and capacitive proximity detection for hands-free activation. Use Value: On-chip AESEA enables secure firmware updates over LIN, meeting OEM cybersecurity requirements for lighting ECUs without adding discrete crypto ICs. |
| Seat Position Memory | Climate Control Panel |
Use Scenario: Storing and recalling multi-position seat configurations using non-volatile data flash and LIN-linked actuators. IC Role / Device Role / Timing Role: Data flash manager with wear-leveling, LIN slave node, and analog feedback acquisition from potentiometers and current sensors. Use Value: 12 KB data flash supports >100,000 write cycles - exceeds OEM requirement of 50,000 cycles for seat memory retention over 15-year vehicle life. |
Use Scenario: Human-machine interface for HVAC with touch sliders, rotary encoders, and LED status indicators. IC Role / Device Role / Timing Role: Capacitive touch decoder for slider/wheel gestures, PWM-controlled LED brightness, and UART-based communication with HVAC MCU. Use Value: Single-chip integration of CTSU, 12-bit ADC, and LIN/UART reduces component count by 4 vs. legacy 8-bit solutions - improving MTBF and easing AEC-Q200 qualification. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7F123G | Same RL78/F23 family, 44 I/O, 48 KB Flash, 20x 12-bit ADC, 12-channel CTSU - larger pin count and higher ADC resolution | Targeted at more complex body ECUs requiring additional analog sensing or LIN/CAN coexistence | Select R7F123G when expanding from 32-pin to 48-pin layout and needing ≥20 ADC channels or extra LIN interfaces |
| R7F124B | RL78/F24 series, 256 KB Flash, 16 KB RAM, 24 KB data flash, adds CAN 2.0B interface and enhanced security (Evita Light) | Suitable for gateway or domain controller roles requiring CAN backbone connectivity and stronger crypto enforcement | Choose R7F124B only if CAN bus integration is mandatory and design can accommodate QFN-32 → QFN-32 footprint change plus CAN transceiver addition |
Compared with R7F702301BFABG-C#BC8, R7F123G offers higher I/O and ADC density for expanded sensor fusion, while R7F124B introduces CAN and hardened security - neither is pin-compatible, but both share toolchain (CS+, e2 studio) and peripheral register mapping within RL78 families.
Availability
R7F702301BFABG-C#BC8 is available at Aetrix Electronics and suitable for automotive body electronics, interior HMI systems, and LIN-based actuator control requiring stable component supply across extended product lifecycles.
Supply support for R7F702301BFABG-C#BC8 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 is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.
The RL78/F23 series targets cost-sensitive, safety-aware automotive body electronics - delivering ASIL B compliance, capacitive touch, and crypto acceleration in compact QFN packages for space-constrained modules.
FAQ
What is the maximum operating temperature rating for the R7F702301BFABG-C#BC8?
The R7F702301BFABG-C#BC8 is rated for operation from −40°C to +125°C, meeting AEC-Q100 Grade 2 requirements for under-dash and interior automotive applications. This specification is validated across all silicon revisions and includes margin for thermal cycling reliability per JEDEC JESD22-A104.
Does the R7F702301BFABG-C#BC8 support CAN communication?
No, the R7F702301BFABG-C#BC8 does not include a CAN controller or CAN-FD interface. It supports LIN, UART, and I²C only. For CAN-enabled RL78 variants, consider R7F124B (RL78/F24) or R5F10BGC (RL78/F13-CAN), which integrate full CAN 2.0B peripherals.
Which debug tools are compatible with the R7F702301BFABG-C#BC8?
The R7F702301BFABG-C#BC8 supports E2 Lite On-Chip Debugging Emulator (RTE0T0002LKCE00000R) and E2 emulator (RTE0T00020KCE00000R) via its single-pin debug interface. Both tools enable flash programming, real-time trace, and breakpoint debugging in CS+ and e2 studio IDEs.
What capacitive touch capability does the R7F702301BFABG-C#BC8 provide?
The R7F702301BFABG-C#BC8 integrates a 10-channel Capacitive Touch Sensing Unit (CTSU) supporting self-capacitance measurement with built-in noise cancellation. It requires no external components for basic button/wheel detection and complies with IEC 61000-4-3/6 Level 3 immunity standards.
Is the R7F702301BFABG-C#BC8 pin-compatible with other RL78/F23 devices?
Yes, the R7F702301BFABG-C#BC8 shares the PWQN0032KF-B package and identical pinout with all RL78/F23 32-pin variants including R7F123B and R7F123G. Firmware is binary-compatible across same-flash-size members, enabling scalable design reuse.
R7F702301BFABG-C#BC8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 292-FBGA
- Series:
- RH850/U2A
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- RH850G4MH
- Core Size:
- 32-Bit Quad-Core
- Speed:
- 400MHz
- Connectivity:
- CANbus, CSI, Ethernet, FlexRay, I2C, LINbus, PSI5S, SCI, SENT, SPI, UART/USART
- Peripherals:
- DMA, POR, PWM, Temp Sensor, WDT
- Number of I/O:
- 165
- Program Memory Size:
- 8MB (8M x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 320K x 8
- RAM Size:
- 1.75M x 8
- Voltage - Supply (Vcc/Vdd):
- 3V ~ 5.5V
- Data Converters:
- A/D 79x12b SAR
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 160°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7F702301BFABG-C#BC8 FAQ
1.How can I place an order for R7F702301BFABG-C#BC8 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F702301BFABG-C#BC8 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 R7F702301BFABG-C#BC8 reliable?
The price and inventory of R7F702301BFABG-C#BC8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7F702301BFABG-C#BC8 is usually 5 days.
3.What payment methods are accepted for R7F702301BFABG-C#BC8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7F702301BFABG-C#BC8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7F702301BFABG-C#BC8?
R7F702301BFABG-C#BC8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7F702301BFABG-C#BC8 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 R7F702301BFABG-C#BC8?
For technical support, including R7F702301BFABG-C#BC8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F702301BFABG-C#BC8 requirements.
6.How does Aetrix verify that R7F702301BFABG-C#BC8 is sourced from the original manufacturer or authorized distributors?
All R7F702301BFABG-C#BC8 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 R7F702301BFABG-C#BC8 meets industry standards.
7.What is the process for return or replacement of R7F702301BFABG-C#BC8?
All R7F702301BFABG-C#BC8 units undergo pre-shipment inspection (PSI). If there is an issue with R7F702301BFABG-C#BC8, 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 R7F702301BFABG-C#BC8 part is unused and in its original packaging.
Return procedure for R7F702301BFABG-C#BC8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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