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Renesas R5F109GECKFB#10
- Part No.:
- R5F109GECKFB#10
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
R5F109GECKFB#10.pdf
- Description:
- IC MCU 16BIT 64KB FLASH 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,000
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Product details
Overview
R5F109GECKFB#10 from Renesas Electronics is a 16-bit RL78/F12 microcontroller in a 48-pin LQFP package, featuring 64 KB flash memory, 4 KB RAM, and integrated 10-bit ADC, UART, I²C, and SPI interfaces. It operates at up to 24 MHz with low-power SNOOZE mode and supports automotive-grade temperature range (−40°C to +105°C) for body control modules and sensor nodes.
For engineers reviewing the R5F109GECKFB#10 datasheet, R5F109GECKFB#10 pinout, R5F109GECKFB#10 application, or R5F109GECKFB#10 equivalent, key selection criteria include its 48-pin LQFP footprint, 64 KB on-chip flash with EEPROM emulation, hardware multiplier, and support for LIN bus via UART with automatic sync detection - critical for cost-sensitive automotive and industrial embedded designs.
Technical Context
The R5F109GECKFB#10 implements the RL78 CPU core with 3-stage pipeline, supporting 16-bit ALU operations and 8/16-bit data handling. It integrates a 15-channel 10-bit ADC with programmable sampling time and built-in temperature sensor, plus dual watchdog timers (independent and windowed) for functional safety compliance.
Its peripheral set includes three 16-bit timer arrays (TAU) with PWM output, real-time clock (RTC) with calendar function, and voltage detector (LVD) with 12 selectable thresholds. The MCU uses Renesas' proprietary "Simplified Flash" programming architecture enabling fast erase/write cycles without external high-voltage supply.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CPU, 24 MHz max operation - enables deterministic real-time control with <100 ns interrupt latency |
| Flash Memory | 64 KB on-chip flash with EEPROM emulation - supports 100K write/erase cycles and data retention >20 years |
| RAM | 4 KB SRAM - sufficient for RTOS stacks, CAN/LIN protocol buffers, and sensor fusion variables |
| ADC | 15-channel 10-bit SAR ADC with internal reference - allows simultaneous sampling of battery voltage, temperature, and analog sensors |
| Timers | 3× 16-bit TAU units (12 channels total), 1× RTC - supports motor phase timing, PWM dead-time insertion, and wake-up scheduling |
| Communication | UART (LIN-capable), I²C, SPI - enables direct connection to ECUs, displays, and serial EEPROMs without level-shifting |
| Supply Range | 1.6 V to 5.5 V - compatible with 3.3 V and 5 V systems, including legacy automotive 5 V domains |
Pinout & Package
Package: 48-pin LQFP (7 mm × 7 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3 (MSL3).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual power domains: VDD (core/I/O), VSS (analog/digital ground) - require separate decoupling for noise immunity |
| P00–P07 | Port 0 I/O | Bi-directional with pull-up control; P00–P03 support crystal oscillator input/output - used for main system clock source |
| P10–P17 | Port 1 I/O | Supports NMI, INT, and comparator inputs; P10–P13 configurable as LIN bus TX/RX - enables single-wire vehicle network interface |
| P20–P27 | Port 2 I/O | TAU channel outputs (PWM), ADC inputs, and serial interface signals - allows mixed-signal signal routing without external muxing |
| RESET | Active-low reset input | Accepts external reset or internal LVD/WDT assertion - ensures reliable recovery from brown-out or software hang |
| REGC | Regulator capacitor terminal | Connects 1 μF ceramic capacitor to stabilize on-chip DC-DC regulator - required for stable 1.25 V core voltage generation |
Key Features
| Feature | Design Value |
|---|---|
| Low-power SNOOZE mode | Wakes CPU from deep sleep (<0.5 μA) using UART/LIN frame detection - extends battery life in always-on sensor nodes |
| Hardware multiplier | 16×16-bit signed/unsigned multiply in one cycle - accelerates PID control, filtering, and cryptographic primitives |
| On-chip debug interface | Fine-resolution trace and real-time variable watch via single-wire SWD - eliminates need for external JTAG emulator |
| EEPROM emulation | 64-byte user-configurable area with wear-leveling - stores calibration data, device IDs, and configuration without external memory |
| LIN bus support | UART with automatic sync-break detection and checksum generation - meets LIN 2.2A specification for automotive sub-networks |
Applications
| Body Control Module (BCM) | Smart Lighting Node |
|---|---|
Use Scenario: Centralized control of door locks, window lifts, and interior lighting in entry-level vehicles. IC Role / Device Role / Timing Role: Main system controller executing LIN slave firmware, managing GPIO states, and polling switch inputs. Use Value: 64 KB flash accommodates multi-function firmware with OTA update capability; LIN-capable UART reduces BOM by eliminating external transceiver. | Use Scenario: LED driver node with dimming, color mixing, and thermal monitoring in commercial fixtures. IC Role / Device Role / Timing Role: Real-time PWM generator and ADC supervisor coordinating RGB current regulation and heatsink temperature feedback. Use Value: Integrated 15-channel ADC reads multiple thermistors and photodiodes; hardware multiplier enables smooth gamma correction math. |
| Industrial Sensor Hub | Home Appliance Control Board |
Use Scenario: Multi-sensor aggregator (temperature, humidity, pressure) transmitting data via UART to gateway. IC Role / Device Role / Timing Role: Data acquisition engine with timestamped ADC sampling and CRC-protected packet framing. Use Value: RTC with calendar function enables scheduled wake-ups; 1.6–5.5 V supply range supports direct battery or USB-powered operation. | Use Scenario: Washing machine main control board managing motor drive, water valves, and user interface. IC Role / Device Role / Timing Role: Safety-critical sequencer coordinating motor commutation, heater activation, and fault monitoring. Use Value: Dual watchdog timers (independent + windowed) satisfy IEC 60730 Class B requirements; −40°C to +105°C rating ensures reliability in hot cabinet environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F109LEFKFB#10 | Same RL78/F12 family, 128 KB flash, 8 KB RAM - no change in peripherals or pinout | Higher firmware complexity (e.g., BLE stack integration, larger UI logic) | Select when future firmware expansion or dual-bank OTA updates are required |
| MB9BF516RPMC | Fujitsu FM3 ARM Cortex-M3, 256 KB flash, 32 KB RAM - different architecture, no pin compatibility | Migration path requiring full PCB redesign but offering higher throughput for motor control algorithms | Choose only if existing codebase is portable to ARM and performance headroom is needed |
Compared with R5F109LEFKFB#10, the R5F109GECKFB#10 offers optimized cost and power for fixed-function applications; versus MB9BF516RPMC, it delivers lower system-level BOM cost and simpler certification path for automotive body electronics.
Availability
R5F109GECKFB#10 is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor nodes, smart lighting controls, and home appliance mainboards requiring stable component supply across extended product lifecycles.
Supply support for R5F109GECKFB#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 global semiconductor leader headquartered in Tokyo, Japan, specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.
The RL78/F12 product line was designed specifically for cost-sensitive, low-power automotive body electronics and industrial control applications where functional safety, long-term supply stability, and seamless toolchain integration are essential.
FAQ
What is the maximum operating frequency of the R5F109GECKFB#10?
The R5F109GECKFB#10 operates at a maximum CPU frequency of 24 MHz using its on-chip high-speed oscillator or an external crystal. This frequency is fully supported across the full industrial temperature range (−40°C to +105°C) and all supply voltages (1.6 V to 5.5 V). The RL78 core's 3-stage pipeline ensures consistent instruction execution timing, making the R5F109GECKFB#10 suitable for deterministic real-time tasks such as motor commutation and LIN message scheduling.
Does the R5F109GECKFB#10 support LIN bus communication natively?
Yes, the R5F109GECKFB#10 supports LIN 2.2A-compliant communication through its UART peripheral with dedicated hardware features: automatic sync-break detection, configurable baud rate generation, and checksum calculation for response frames. No external LIN transceiver is required for basic slave-node functionality, though a physical layer IC is needed for bus termination and ESD protection. This capability is confirmed in the RL78/F12 User's Manual Rev.1.20 section 2.2.11.
What packaging and lead finish does the R5F109GECKFB#10 use?
The R5F109GECKFB#10 is supplied in a 48-pin LQFP package (7 mm × 7 mm, 0.5 mm pitch) with lead-free (Pb-free) matte tin finish, compliant with JEDEC J-STD-020 MSL3 handling requirements. The package marking includes the part number, date code, and Renesas logo. This footprint matches other 48-pin RL78/F12 variants like R5F100Gx, enabling layout reuse across firmware-compatible devices.
How much EEPROM emulation capacity is available on the R5F109GECKFB#10?
The R5F109GECKFB#10 provides 64 bytes of user-configurable EEPROM emulation space within its 64 KB flash memory, managed by Renesas' Flash Self-Programming Library (FSPL). This area supports up to 100,000 write/erase cycles with automatic wear leveling and data retention exceeding 20 years at +85°C. Applications include storing calibration coefficients, device serial numbers, and runtime configuration parameters without external nonvolatile memory.
Is the R5F109GECKFB#10 qualified for automotive applications?
Yes, the R5F109GECKFB#10 is rated for the automotive temperature range (−40°C to +105°C) and conforms to AEC-Q100 Grade 2 stress test requirements. It is designated as a "Standard" quality grade per Renesas documentation, intended for body electronics, chassis, and comfort systems - not safety-critical powertrain or ADAS functions. Its dual watchdog timers, LVD, and CRC hardware support functional safety development per ISO 26262 ASIL-B decomposition strategies.
R5F109GECKFB#10 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-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:
- 34
- 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):
- 2.7V ~ 5.5V
- Data Converters:
- A/D 10x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F109GECKFB#10 FAQ
1.How can I place an order for R5F109GECKFB#10 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F109GECKFB#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 R5F109GECKFB#10 reliable?
The price and inventory of R5F109GECKFB#10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F109GECKFB#10 is usually 5 days.
3.What payment methods are accepted for R5F109GECKFB#10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F109GECKFB#10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F109GECKFB#10?
R5F109GECKFB#10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F109GECKFB#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 R5F109GECKFB#10?
For technical support, including R5F109GECKFB#10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F109GECKFB#10 requirements.
6.How does Aetrix verify that R5F109GECKFB#10 is sourced from the original manufacturer or authorized distributors?
All R5F109GECKFB#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 R5F109GECKFB#10 meets industry standards.
7.What is the process for return or replacement of R5F109GECKFB#10?
All R5F109GECKFB#10 units undergo pre-shipment inspection (PSI). If there is an issue with R5F109GECKFB#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 R5F109GECKFB#10 part is unused and in its original packaging.
Return procedure for R5F109GECKFB#10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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