Renesas R5F35MAEJFB
- Part No.:
- R5F35MAEJFB
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
R5F35MAEJFB.pdf
- Description:
- IC MCU 16BIT 256KB FLSH 100LFQFP
- Quantity:
- Payment:

- Shipping:

Inventory:2,789
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Product details
Overview
R5F35MAEJFB from Renesas is a 16-bit M16C/5M Group microcontroller featuring the M16C/60 Series CPU core, 256 KB program ROM, 16 KB RAM, 4 KB × 2 blocks data flash, 20 KB E2dataFlash, and dual-channel CAN interface. It operates at up to 32 MHz across 3.0–5.5 V and supports automotive control systems requiring real-time communication, motor control, and robust data logging.
For engineers reviewing the R5F35MAEJFB datasheet, R5F35MAEJFB pinout, R5F35MAEJFB application, or R5F35MAEJFB equivalent, this MCU delivers verified dual-CAN bus support, 100-pin LQFP packaging with 70 I/Os, on-chip LIN and multi-master I²C interfaces, 26-channel 10-bit ADC, and integrated three-phase motor control timers - critical for factory automation and car audio subsystems.
Technical Context
The R5F35MAEJFB implements the M16C/60 Series CPU core with 16×16-bit multiplier and multiply-accumulate unit, executing 91 basic instructions in single-chip mode. Its clock system includes main/sub oscillators, PLL frequency synthesizer, and dedicated 125 kHz watchdog oscillator.
It integrates four DMAC channels with 50 trigger sources, five 16-bit Timer A units (supporting PWM, encoder input, and programmable output), six 16-bit Timer B units (including pulse-width/frequency measurement), and a dedicated three-phase motor control timer using Timers A1/A2/A4/B2 with on-chip dead time generation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | M16C/60 Series with 16×16-bit multiplier and MAC unit - enables deterministic motor control math and fast signal processing. |
| Memory | 256 KB program ROM + 16 KB RAM + 4 KB × 2 data flash + 20 KB E2dataFlash - supports firmware updates and persistent parameter storage without external EEPROM. |
| CAN Interface | Dual-channel CAN with 32-slot message buffers - allows concurrent communication on two independent automotive or industrial networks. |
| Analog Peripherals | 10-bit ADC × 26 channels + 8-bit DAC × 1 - sufficient for sensor fusion, closed-loop feedback, and analog actuator control. |
| Timers | Timer A × 5 (PWM/encoder), Timer B × 6 (pulse measurement), three-phase motor timer × 1 - directly supports brushless DC and AC induction motor drives. |
| Package & I/O | 100-pin LQFP (PLQP0100KB-A), 70 CMOS I/Os with pull-up selectability - provides high peripheral density and layout flexibility for complex control boards. |
| Operating Range | -40°C to +85°C, 3.0–5.5 V supply - qualified for under-hood automotive and industrial ambient conditions. |
Pinout & Package
Package: 100-pin plastic mold LQFP (PLQP0100KB-A / 100P6Q-A), 0.5 mm pitch, 14 mm × 14 mm body size.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P6_0 | RTCOUT / CTS0 / RTS0 | Real-time clock output or UART0 flow control - enables time-stamped logging or hardware handshaking. |
| P9_5 | CLK4 / CRX0 | CAN receive input for Channel 0 - dedicated pin for noise-immune CAN bus termination and filtering. |
| P9_6 | TXD4 / CTX0 | CAN transmit output for Channel 0 - supports ISO 11898-compliant differential signaling via external transceiver. |
| P7_6 | TA3OUT / CTX1 | CAN transmit output for Channel 1 - enables independent second CAN network without multiplexing. |
| P7_7 | TA3IN / CRX1 | CAN receive input for Channel 1 - maintains full duplex operation on both CAN channels simultaneously. |
Key Features
| Feature | Design Value |
|---|---|
| Dual CAN 2.0B interface | Two independent 32-slot message buffers enable concurrent CAN FD-ready communication on separate buses - essential for gateway or domain controller designs. |
| E2dataFlash (20 KB) | 100,000 write/erase cycles with serial EEPROM emulation - eliminates need for external nonvolatile memory in calibration and configuration storage. |
| Three-phase motor control timer | Hardware timer combining Timers A1/A2/A4/B2 with built-in dead time insertion - reduces software overhead and improves gate driver safety in inverter applications. |
| LIN 2.1 module | Single-channel LIN master/slave with automatic checksum and sync field detection - simplifies integration with sensors and actuators in cost-sensitive automotive subsystems. |
| Multi-master I²C-bus | One channel supporting standard/fast-mode (up to 400 kHz) with arbitration and clock stretching - enables reliable communication with EEPROMs, temperature sensors, and display controllers. |
Applications
| Automotive Body Control Module | Factory Automation Gateway |
|---|---|
Use Scenario: Centralized control of door locks, lighting, HVAC, and window motors in modern vehicles. IC Role / Device Role / Timing Role: Main system MCU managing CAN-based communication with ECUs, LIN peripherals, and analog sensor inputs. Use Value: Dual CAN channels allow simultaneous connection to powertrain and chassis networks while E2dataFlash stores vehicle-specific configuration and fault logs. | Use Scenario: Protocol translation and data aggregation between PLCs, HMIs, and fieldbus devices in smart manufacturing lines. IC Role / Device Role / Timing Role: Real-time protocol bridge with deterministic interrupt handling and multi-interface concurrency (CAN, LIN, I²C, UART). Use Value: Integrated 26-channel ADC and three-phase motor timer enable direct monitoring of motor currents and local drive control without external components. |
| Car Audio Head Unit | Industrial Motor Drive Controller |
Use Scenario: Audio source switching, amplifier control, and user interface management in OEM infotainment systems. IC Role / Device Role / Timing Role: Secondary MCU coordinating DSP, display, touch panel, and CAN/LIN-connected amplifiers and sensors. Use Value: 100-pin package provides ample I/O for parallel LCD interface, button matrix, and multiple serial buses - reducing external logic and PCB layers. | Use Scenario: Closed-loop control of BLDC or PMSM motors in pumps, compressors, and conveyors. IC Role / Device Role / Timing Role: Real-time motor controller executing FOC algorithms with hardware-accelerated PWM and current sampling synchronization. Use Value: On-chip dead time generator and encoder-input-capable timers eliminate external timing ICs and reduce gate driver design complexity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F35MA6JFB | Same 100-pin LQFP package and dual-CAN, but 128 KB program ROM and 12 KB E2dataFlash - lower code/data capacity. | Suitable for less complex automotive modules where firmware footprint and calibration storage requirements are reduced. | Select when application firmware fits within 128 KB and 12 KB E2dataFlash; retains identical pinout and peripheral set. |
| R5F35MBEJFE | Same memory configuration (256 KB/16 KB/20 KB) but 80-pin LQFP (PLQP0080KB-A) - 20 fewer pins, 54 I/Os, no P10/P2 ports. | Fits compact designs with fewer analog inputs or communication interfaces; sacrifices some ADC channels and port flexibility. | Choose for space-constrained layouts where dual-CAN and full memory are required but 100-pin routing is impractical. |
Compared with R5F35MA6JFB, R5F35MAEJFB offers 128 KB more program ROM and 8 KB more E2dataFlash for larger firmware and extended calibration tables; compared with R5F35MBEJFE, it provides 16 additional I/Os and full 100-pin peripheral access - critical for systems requiring maximum interface concurrency and sensor density.
Availability
R5F35MAEJFB is available at Aetrix Electronics and suitable for automotive body control, factory automation gateways, car audio head units, and industrial motor drive controllers requiring stable component supply and long-term lifecycle support.
Supply support for R5F35MAEJFB 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, and power management solutions for automotive, industrial, and IoT markets.
The M16C/5M Group, including R5F35MAEJFB, was designed for real-time embedded control in harsh environments - emphasizing dual-CAN connectivity, motor control acceleration, and high-reliability nonvolatile data storage.
FAQ
What is the operating temperature range for the R5F35MAEJFB?
The R5F35MAEJFB is rated for operation from -40°C to +85°C, making it suitable for under-dash automotive applications and industrial control cabinets. This J-version part does not support the extended -40°C to +125°C K-version temperature grade.
Does the R5F35MAEJFB include an on-chip debugger interface?
Yes, the R5F35MAEJFB includes an on-chip debugger with address match × 4 capability, enabling real-time flash rewriting and non-intrusive debugging without external JTAG emulators - simplifying development and field firmware updates.
How many analog-to-digital converter channels does the R5F35MAEJFB support?
The R5F35MAEJFB supports 26 channels of 10-bit analog-to-digital conversion, distributed across AN0_0–AN0_7, AN2_0–AN2_7, AN_0–AN_7, and AN3_0–AN3_2 - matching the 100-pin package's full analog input capability as confirmed in the datasheet's 100-pin specification tables.
What is the function of the E2dataFlash in the R5F35MAEJFB?
The E2dataFlash in the R5F35MAEJFB provides 20 KB of serial EEPROM-emulated nonvolatile memory with 100,000 write/erase endurance - used for storing calibration data, device configuration, and runtime parameters without requiring external memory chips.
Can the R5F35MAEJFB operate without an external crystal oscillator?
Yes, the R5F35MAEJFB includes an internal 40 MHz on-chip oscillator and a 125 kHz oscillator dedicated to the watchdog timer, allowing full operation without external crystals - though external XIN/XOUT is supported for higher precision timing in CAN or real-time applications.
R5F35MAEJFB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 100-LQFP
- Series:
- M16C/5M
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- M16C/60
- Core Size:
- 16-Bit
- Speed:
- 32MHz
- Connectivity:
- I2C, UART/USART
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 70
- Program Memory Size:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 12K x 8
- RAM Size:
- 20K x 8
- Voltage - Supply (Vcc/Vdd):
- 3V ~ 5.5V
- Data Converters:
- A/D 26x10b; D/A 1x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F35MAEJFB FAQ
1.How can I place an order for R5F35MAEJFB through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F35MAEJFB 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 R5F35MAEJFB reliable?
The price and inventory of R5F35MAEJFB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F35MAEJFB is usually 5 days.
3.What payment methods are accepted for R5F35MAEJFB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F35MAEJFB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F35MAEJFB?
R5F35MAEJFB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F35MAEJFB 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 R5F35MAEJFB?
For technical support, including R5F35MAEJFB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F35MAEJFB requirements.
6.How does Aetrix verify that R5F35MAEJFB is sourced from the original manufacturer or authorized distributors?
All R5F35MAEJFB 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 R5F35MAEJFB meets industry standards.
7.What is the process for return or replacement of R5F35MAEJFB?
All R5F35MAEJFB units undergo pre-shipment inspection (PSI). If there is an issue with R5F35MAEJFB, 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 R5F35MAEJFB part is unused and in its original packaging.
Return procedure for R5F35MAEJFB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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