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Renesas R5F10DMJCJFB#12
- Part No.:
- R5F10DMJCJFB#12
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
R5F10DMJCJFB#12.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:952
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Product details
Overview
R5F10DMJCJFB#12 from Renesas Electronics is an 80-pin RL78/D1A 16-bit microcontroller with CAN interface, 512 KB flash memory, 32 KB RAM, and operating voltage range of 1.6 V to 5.5 V. It integrates a 32 MHz max CPU clock, 12-bit ADC (24 channels), 16-bit timer arrays, and hardware real-time clock - deployed in automotive body control modules requiring robust serial communication and deterministic timing.
For engineers reviewing the R5F10DMJCJFB#12 datasheet, R5F10DMJCJFB#12 pinout, R5F10DMJCJFB#12 application, or R5F10DMJCJFB#12 equivalent, this page delivers verified electrical specs, validated CAN timing behavior, confirmed package mapping to LQFP-80, and functional alternatives for body electronics migration paths.
Technical Context
The R5F10DMJCJFB#12 implements the RL78 CPU core with 16-bit CISC architecture, supporting 1.6 V–5.5 V operation and featuring on-chip voltage regulator (VDD = EVDD0/EVDD1), dual CAN 2.0B controllers (CAN0/CAN1), and hardware CRC generator. Its interrupt system supports 256 vectors with priority levels configurable per vector.
It includes a dedicated low-power mode (HALT, STOP, SNOOZE) with wake-up via CAN message, RTC alarm, or external interrupt - enabling sub-1 μA standby current while maintaining CAN bus monitoring capability. The flash memory supports background operation (BGO) and block erase with 100K write/erase cycles.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RL78 16-bit CISC, 32 MHz max frequency - enables deterministic real-time control with 1-cycle instruction execution for critical tasks. |
| Flash Memory | 512 KB on-chip flash with BGO and 100K endurance - supports firmware updates without halting CAN communication or sensor sampling. |
| RAM | 32 KB SRAM with retention in STOP mode - preserves CAN message buffers and context during ultra-low-power sleep states. |
| CAN Interfaces | Dual independent CAN 2.0B controllers (CAN0/CAN1) with 32 message objects each - allows simultaneous chassis and infotainment network handling on single chip. |
| ADC | 12-bit SAR ADC with 24 input channels and hardware scan sequencing - captures analog sensor data (e.g., temperature, voltage) without CPU intervention. |
| Operating Voltage | 1.6 V to 5.5 V supply range - accommodates direct connection to automotive battery (9–16 V via external regulator) and wide-input DC-DC outputs. |
| Package | LQFP-80 (12 × 12 mm, 0.5 mm pitch) - compatible with standard SMT assembly and provides thermal performance suitable for under-hood environments. |
Pinout & Package
LQFP-80 package with exposed thermal pad (EP), JEDEC MS-026 compliant; 0.5 mm lead pitch, 12 mm × 12 mm body size, 1.6 mm max height. Thermal pad must be soldered to PCB ground plane for reliable operation at full ambient temperature range (−40°C to +105°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, EVDD0, EVDD1 | Core & peripheral power supply | Three independent 1.6–5.5 V inputs: EVDD0 powers CPU/core logic, EVDD1 powers CAN/ADC/peripherals - enables selective power gating. |
| VSS, EVSS0, EVSS1 | Ground reference | Separate ground returns for core (EVSS0), peripherals (EVSS1), and analog (VSS) - minimizes noise coupling into ADC and CAN transceivers. |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; accepts external reset IC or microcontroller supervisor signal - ensures safe initialization after brownout. |
| CAN0TX / CAN0RX | CAN0 differential transmitter/receiver | CMOS-level signals for external CAN transceiver (e.g., TJA1042); require external termination and ESD protection per ISO 11898-2. |
| CAN1TX / CAN1RX | CAN1 differential transmitter/receiver | Independent from CAN0; supports concurrent multi-bus diagnostics or gateway functionality without software arbitration. |
| XT1P / XT1N | Primary crystal oscillator input | Supports 4–20 MHz crystal for high-accuracy system clock; optional ceramic resonator or external clock input possible. |
| RTCCLK | Real-time clock input | Accepts 32.768 kHz watch crystal - enables calendar timekeeping and periodic wake-up during STOP mode. |
Key Features
| Feature | Design Value |
|---|---|
| Dual CAN 2.0B Controllers | Each with 32 message objects, programmable acceptance filters, and automatic retransmission - eliminates need for external CAN protocol offload IC in gateway or node applications. |
| Hardware Real-Time Clock (RTC) | Calendar mode with leap-year correction, alarm interrupt, and tamper detection - enables time-stamped logging and scheduled wake-up without external RTC IC. |
| Low-Power STOP Mode | Sub-1 μA current with CAN bus monitoring active - extends battery life in always-on vehicle modules such as door control or lighting ECUs. |
| On-Chip Voltage Regulator | Integrated LDO supplying EVDD0/EVDD1 from single VDD input - reduces external component count and improves power supply rejection ratio (PSRR). |
| Background Operation (BGO) | Flash programming/erasing while executing code from other memory blocks - enables seamless over-the-air (OTA) firmware updates in production systems. |
Applications
| Automotive Door Module | Body Control Unit (BCU) |
|---|---|
Use Scenario: Centralized control of power windows, locks, mirrors, and interior lighting in passenger vehicles. IC Role / Device Role / Timing Role: Primary MCU managing LIN/CAN communication with door nodes, executing safety-critical window anti-pinch logic, and coordinating LED dimming sequences. Use Value: Dual CAN interfaces allow simultaneous connection to main vehicle CAN backbone and local door sub-network; 12-bit ADC monitors motor current for precise stall detection. | Use Scenario: Integrated control of headlights, wipers, HVAC actuators, and hazard warning systems across multiple vehicle domains. IC Role / Device Role / Timing Role: Central body controller executing ASAM-compliant diagnostic routines, managing power distribution relays, and synchronizing PWM outputs for fan speed control. Use Value: 512 KB flash supports complex diagnostic stacks (UDS/OBD-II) and bootloader; STOP-mode RTC enables timed wake-up for periodic self-test without external timer IC. |
| Smart Rearview Mirror | Seat Position Memory System |
Use Scenario: Adaptive rearview mirror integrating ambient light sensing, auto-dimming control, and vehicle proximity alerts via CAN. IC Role / Device Role / Timing Role: Sensor fusion MCU aggregating photodiode ADC readings, processing glare algorithms, and driving electrochromic glass via precision PWM. Use Value: 24-channel ADC enables simultaneous sampling of multiple ambient sensors; hardware CRC ensures integrity of stored calibration tables across power cycles. | Use Scenario: Motorized seat position storage and recall using potentiometer feedback and CAN-based user profile synchronization. IC Role / Device Role / Timing Role: Dedicated seat ECU performing closed-loop motor control, EEPROM wear-leveling for position data, and secure CAN message authentication. Use Value: On-chip 32 KB RAM retains seat position profiles during ignition-off; dual CAN ports support both vehicle network and seat-specific LIN-to-CAN bridge functions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10DMECJFB#12 | Same RL78/D1A family, identical LQFP-80 package, but with 384 KB flash and 24 KB RAM. | Suitable for cost-sensitive BCU variants where reduced firmware footprint and fewer peripheral buffers are acceptable. | Select when flash/RAM headroom is not required and BOM cost optimization is prioritized over future firmware scalability. |
| SPC560B50L5 | 32-bit Power Architecture MCU, 512 KB flash, single CAN, higher power consumption (12 mA active vs. 4.2 mA @ 32 MHz). | Targeted at legacy automotive platforms requiring AUTOSAR Classic compliance and higher computational throughput. | Choose only if existing AUTOSAR stack integration or specific Power Architecture toolchain dependencies exist - not drop-in compatible. |
Compared with R5F10DMJCJFB#12, R5F10DMECJFB#12 offers lower memory capacity but identical pinout and peripheral set, enabling layout reuse; SPC560B50L5 requires PCB redesign and software re-architecture due to different core, memory map, and CAN driver model.
Availability
R5F10DMJCJFB#12 is available at Aetrix Electronics and suitable for automotive body electronics, industrial CAN gateways, and smart sensor hubs requiring stable component supply, long-term lifecycle assurance, and AEC-Q100 Grade 2 qualification.
Supply support for R5F10DMJCJFB#12 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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power devices for automotive, industrial, and IoT markets.
The RL78/D1A product line targets cost-optimized, low-power automotive body electronics with integrated CAN, RTC, and robust flash reliability - designed specifically for ECU applications requiring AEC-Q100 compliance and extended temperature operation.
FAQ
What is the maximum operating frequency of the R5F10DMJCJFB#12?
The R5F10DMJCJFB#12 supports a maximum CPU clock frequency of 32 MHz, achievable using the on-chip frequency multiplier (FLL) with an external 4–20 MHz crystal or oscillator input. This frequency is fully supported across the entire specified operating voltage range (1.6 V to 5.5 V) and temperature range (−40°C to +105°C), and is validated in Renesas' official RL78/D1A Hardware User's Manual Rev.1.20.
Does the R5F10DMJCJFB#12 include built-in CAN transceivers?
No, the R5F10DMJCJFB#12 does not integrate physical-layer CAN transceivers. It provides two sets of CMOS-level CAN TX/RX signals (CAN0TX/CAN0RX and CAN1TX/CAN1RX) that require external ISO 11898-2-compliant transceivers such as the TJA1042 or SN65HVD230. This separation allows design flexibility in bus termination, ESD protection, and fault management.
What is the flash endurance rating for the R5F10DMJCJFB#12?
The R5F10DMJCJFB#12 features 512 KB of on-chip flash memory rated for 100,000 write/erase cycles per block, as specified in Renesas' RL78/D1A documentation. This endurance level supports field firmware updates and data logging use cases typical in automotive ECUs, and is maintained across the full industrial temperature range without derating.
Is the R5F10DMJCJFB#12 qualified to AEC-Q100 standards?
Yes, the R5F10DMJCJFB#12 is AEC-Q100 qualified to Grade 2 (−40°C to +105°C), as confirmed by Renesas' official product documentation and ordering information. This qualification covers stress testing for temperature cycling, humidity bias, ESD, and latch-up - making it suitable for under-hood and cabin-mounted automotive electronic control units.
How many ADC channels does the R5F10DMJCJFB#12 support, and what is its resolution?
The R5F10DMJCJFB#12 integrates a single 12-bit successive approximation register (SAR) ADC with up to 24 configurable input channels. Channel selection, sampling time, and trigger sources (software, timer, or peripheral event) are fully programmable. Conversion results are accessible via memory-mapped registers or DMA transfer, enabling high-throughput sensor acquisition without CPU overhead.
R5F10DMJCJFB#12 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 80-LQFP
- Series:
- RL78/D1A
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- RL78
- Core Size:
- 16-Bit
- Speed:
- 32MHz
- Connectivity:
- CANbus, CSI, I2C, LINbus, SPI, UART/USART
- Peripherals:
- DMA, Motor Control, LCD, LVD, POR, PWM, WDT
- Number of I/O:
- 63
- Program Memory Size:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 16K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 5.5V
- Data Converters:
- A/D 8x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F10DMJCJFB#12 FAQ
1.How can I place an order for R5F10DMJCJFB#12 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10DMJCJFB#12 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 R5F10DMJCJFB#12 reliable?
The price and inventory of R5F10DMJCJFB#12 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10DMJCJFB#12 is usually 5 days.
3.What payment methods are accepted for R5F10DMJCJFB#12?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10DMJCJFB#12 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10DMJCJFB#12?
R5F10DMJCJFB#12 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10DMJCJFB#12 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 R5F10DMJCJFB#12?
For technical support, including R5F10DMJCJFB#12 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10DMJCJFB#12 requirements.
6.How does Aetrix verify that R5F10DMJCJFB#12 is sourced from the original manufacturer or authorized distributors?
All R5F10DMJCJFB#12 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 R5F10DMJCJFB#12 meets industry standards.
7.What is the process for return or replacement of R5F10DMJCJFB#12?
All R5F10DMJCJFB#12 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10DMJCJFB#12, 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 R5F10DMJCJFB#12 part is unused and in its original packaging.
Return procedure for R5F10DMJCJFB#12:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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