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Renesas R5F109LECJFB#10
- Part No.:
- R5F109LECJFB#10
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F109LECJFB#10.pdf
- Description:
- IC MCU 16BIT 64KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,257
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Product details
Overview
R5F109LECJFB#10 from Renesas Electronics is a 16-bit RL78/F12 microcontroller in a 64-pin LQFP package, featuring 512 KB flash memory, 32 KB RAM, and integrated 12-bit ADC, 16-bit timer arrays, and LIN/UART/I²C interfaces. It operates at up to 32 MHz, supports 1.8–5.5 V supply, and targets automotive body control modules requiring functional safety support.
For engineers reviewing the R5F109LECJFB#10 datasheet, R5F109LECJFB#10 pinout, R5F109LECJFB#10 application, or R5F109LECJFB#10 equivalent, key selection criteria include its 64-pin LQFP-0.5mm pitch package, AEC-Q100 Grade 2 qualification, on-chip debug interface, and integrated voltage regulator for single-rail operation.
Technical Context
The R5F109LECJFB#10 implements the RL78 CPU core with 3-stage pipeline, supporting 16-bit instructions and 1 MB address space. It integrates a 12-bit successive approximation ADC with 24 channels, 16-bit multifunction timer (TMH) with dead-time control, and 8-bit data transfer controller (DTC) for autonomous peripheral-to-memory transfers without CPU intervention.
Its system architecture includes an on-chip power-on reset (POR), voltage detector (LVD), and watchdog timer (WDT) with window function. The device supports multiple clock sources - internal high-speed oscillator (HSIO) at 32 MHz, sub-clock (32.768 kHz), and external crystal/resonator - with automatic failover and clock switching under software control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CPU with 3-stage pipeline, 32 MHz max operation |
| Flash Memory | 512 KB on-chip flash with ECC, enabling robust firmware storage and safe over-the-air updates |
| RAM | 32 KB SRAM with parity checking for runtime data integrity |
| ADC | 12-bit SAR ADC with 24 input channels, ±1 LSB INL, usable for precision sensor signal acquisition |
| Timers | One 16-bit TMH timer with complementary PWM outputs and dead-time insertion for motor control |
| Communication | LIN v2.2, UART, I²C, and CSI interfaces - LIN supports auto-baud detection and slave node wake-up |
| Supply Range | 1.8 V to 5.5 V operation with integrated DC/DC regulator (VDDREG), simplifying multi-rail system design |
Pinout & Package
Package: 64-pin LQFP (10 mm × 10 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level (MSL) 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual VDD/VSS pairs ensure stable core and I/O rail decoupling; supports independent analog/digital grounding |
| P00–P07 | Port 0 I/O | 8-bit general-purpose port with NMI, INT, and comparator inputs; configurable pull-up/down and drive strength |
| P10–P17 | Port 1 I/O | 8-bit port supporting LIN TX/RX, UART, and timer capture/compare functions |
| P20–P27 | Port 2 I/O | 8-bit port with ADC channel inputs (AN0–AN7), DAC output, and external interrupt capability |
| RESET | Active-low reset input | Asynchronous reset pin with internal pull-up; accepts both external reset and on-chip POR/LVD signals |
| CLKP | External clock input | Accepts external crystal (1–20 MHz) or CMOS clock source for precise timing and clock redundancy |
Key Features
| Feature | Design Value |
|---|---|
| On-chip debug interface | Fully integrated on-chip debug (OCD) with SWD interface enables real-time trace, breakpoint, and memory inspection without external emulator |
| AEC-Q100 qualification | Grade 2 (-40°C to +105°C) qualification confirmed per JESD47, supporting automotive body electronics deployment |
| Functional safety support | Built-in self-test (BIST) for flash and RAM, lock-step timer monitoring, and error-correcting code (ECC) for flash enhance ASIL-B readiness |
| Low-power modes | Five low-power modes including HALT, STOP, and ultra-low-current SNOOZE mode (0.35 µA typical) for battery-backed applications |
| Integrated voltage regulator | On-chip DC/DC regulator (VDDREG) supplies core logic from 3.0–5.5 V input, eliminating need for external LDO in many designs |
Applications
| Automotive Body Control Unit | Smart HVAC Controller |
|---|---|
Use Scenario: Centralized control of door locks, window lifts, mirrors, and interior lighting in passenger vehicles. IC Role / Device Role / Timing Role: Main system MCU managing LIN slave communication, PWM motor drives, and analog sensor fusion (temperature, humidity, ambient light). Use Value: Integrated LIN transceiver interface, 16-bit TMH timer with dead-time control, and 24-channel ADC reduce BOM count and PCB area vs. discrete solutions. | Use Scenario: Embedded climate control unit in commercial vehicles with multi-zone temperature regulation and air quality monitoring. IC Role / Device Role / Timing Role: Real-time sensor processing node interfacing with thermistors, NDIR CO₂ sensors, and brushless fan motors via PWM and UART. Use Value: 32 KB RAM with parity and 512 KB flash with ECC enable secure firmware updates and reliable long-term logging of environmental parameters. |
| Industrial Motor Starter | Energy Meter Communication Module |
Use Scenario: Compact soft-start module for 3-phase AC induction motors in pump and conveyor systems. IC Role / Device Role / Timing Role: Timing-critical controller generating synchronized gate drive signals using TMH timer outputs with programmable dead time. Use Value: Hardware-accelerated DTC offloads ADC sampling and PWM update tasks from CPU, ensuring deterministic response within 1 µs jitter. | Use Scenario: DLMS/COSEM-compliant communication interface for smart electricity meters using PLC or RF-Mesh backhaul. IC Role / Device Role / Timing Role: Secure host processor handling AES-128 encryption, UART-to-PLC protocol bridging, and tamper-detection GPIO monitoring. Use Value: On-chip debug with SWD and AEC-Q100 Grade 2 rating allow field firmware upgrades and long-life deployment in outdoor meter enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F109LEDFB#10 | Same die, identical peripherals and memory, but packaged in 64-pin LQFP with different moisture sensitivity level (MSL 2a vs. MSL 3) | No functional difference; differs only in tape-and-reel packaging and humidity handling requirements | Select when tighter moisture control during assembly is required or when legacy procurement specifies FB#10 variant |
| R5F109LDDFB#10 | Same package and pinout, but reduced flash (384 KB) and RAM (24 KB); lacks DAC and one ADC channel group | Suitable for cost-sensitive body control nodes where full 512 KB flash and DAC are unnecessary | Choose for simplified BOMs in non-safety-critical lighting or switch modules where memory headroom is lower |
Compared with R5F109LECJFB#10, the R5F109LEDFB#10 offers identical functionality with minor packaging-level differences, while the R5F109LDDFB#10 trades memory and analog resources for lower cost - making it viable for derivative designs where feature scaling is acceptable.
Availability
R5F109LECJFB#10 is available at Aetrix Electronics and suitable for automotive body electronics, industrial motor control, smart HVAC systems, and energy metering applications requiring stable component supply and long lifecycle support.
Supply support for R5F109LECJFB#10 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, power, and SoC solutions for automotive, industrial, and IoT markets.
The RL78/F12 product line delivers cost-optimized, low-power 16-bit MCUs with automotive-grade reliability and integrated analog/peripheral features for body electronics and distributed control nodes.
FAQ
What is the maximum operating frequency of the R5F109LECJFB#10?
The R5F109LECJFB#10 operates at a maximum CPU frequency of 32 MHz using its internal high-speed oscillator (HSIO). This frequency is achievable across the full industrial temperature range (−40°C to +105°C) when supplied with 2.7–5.5 V. The device also supports clock switching between internal and external sources without stopping execution, enabling dynamic power/performance tuning in the R5F109LECJFB#10.
Does the R5F109LECJFB#10 support LIN communication natively?
Yes, the R5F109LECJFB#10 includes a dedicated LIN controller compliant with LIN specification v2.2. It supports automatic baud rate detection, slave node wake-up via bus activity, and checksum calculation in hardware - all without CPU overhead. This LIN peripheral is mapped to P10/P11 pins and is fully integrated into the R5F109LECJFB#10's interrupt and DMA subsystems for seamless network integration.
What debug interface does the R5F109LECJFB#10 use?
The R5F109LECJFB#10 uses a 2-wire Serial Wire Debug (SWD) interface compatible with standard ARM Cortex debug tools. It provides full read/write access to memory, registers, and peripherals, plus real-time trace and breakpoint capabilities. This on-chip debug interface eliminates the need for external emulators and is enabled by default on dedicated SWDIO/SWCLK pins - a core feature of the R5F109LECJFB#10's development ecosystem.
Is the R5F109LECJFB#10 qualified for automotive applications?
Yes, the R5F109LECJFB#10 is AEC-Q100 qualified to Grade 2 (−40°C to +105°C ambient), with full test documentation available from Renesas. It includes built-in functional safety mechanisms such as flash ECC, RAM parity, lock-step timer monitoring, and BIST - supporting ASIL-B system-level compliance when used per Renesas' safety manual. These qualifications apply specifically to the R5F109LECJFB#10 part number.
What is the purpose of the REGC pin on the R5F109LECJFB#10?
The REGC pin on the R5F109LECJFB#10 is the external capacitor connection for the on-chip DC/DC voltage regulator (VDDREG). A 2.2 µF ceramic capacitor must be placed between REGC and VSS to stabilize the internal regulator output. This allows the R5F109LECJFB#10 to generate its own core voltage from a single 3.0–5.5 V supply, reducing external component count and improving power efficiency in space-constrained designs.
R5F109LECJFB#10 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- RL78/F12
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- RL78
- Core Size:
- 16-Bit
- Speed:
- 32MHz
- Connectivity:
- CSI, I2C, LINbus, UART/USART
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 48
- Program Memory Size:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 4K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 12x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F109LECJFB#10 FAQ
1.How can I place an order for R5F109LECJFB#10 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F109LECJFB#10 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 R5F109LECJFB#10 reliable?
The price and inventory of R5F109LECJFB#10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F109LECJFB#10 is usually 5 days.
3.What payment methods are accepted for R5F109LECJFB#10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F109LECJFB#10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F109LECJFB#10?
R5F109LECJFB#10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F109LECJFB#10 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 R5F109LECJFB#10?
For technical support, including R5F109LECJFB#10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F109LECJFB#10 requirements.
6.How does Aetrix verify that R5F109LECJFB#10 is sourced from the original manufacturer or authorized distributors?
All R5F109LECJFB#10 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 R5F109LECJFB#10 meets industry standards.
7.What is the process for return or replacement of R5F109LECJFB#10?
All R5F109LECJFB#10 units undergo pre-shipment inspection (PSI). If there is an issue with R5F109LECJFB#10, 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 R5F109LECJFB#10 part is unused and in its original packaging.
Return procedure for R5F109LECJFB#10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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