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Renesas R7F124FPJ3AFB-C#BA0
- Part No.:
- R7F124FPJ3AFB-C#BA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
R7F124FPJ3AFB-C#BA0.pdf
- Description:
- 16BIT MCU RL78/F24 256K LQFP100
- Quantity:
- Payment:
- Shipping:
Inventory:2,579
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Product details
Overview
R7F124FPJ3AFB-C#BA0 from Renesas Electronics is a 16-bit RL78/F24 microcontroller in a 100-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 targets automotive body control modules, industrial sensor nodes, and smart appliance controllers requiring low power and functional safety support.
For engineers reviewing the R7F124FPJ3AFB-C#BA0 datasheet, R7F124FPJ3AFB-C#BA0 pinout, R7F124FPJ3AFB-C#BA0 application, or R7F124FPJ3AFB-C#BA0 equivalent, key selection criteria include its 100-pin LQFP-100 package, 512 KB on-chip flash with ECC, 32 KB SRAM, 12-bit ADC with 24 channels, and AEC-Q100 Grade 2 qualification for automotive use.
Technical Context
The R7F124FPJ3AFB-C#BA0 implements the RL78 CPU core with 1.25 DMIPS/MHz performance, supporting dual-voltage operation (1.8–5.5 V) and ultra-low-power modes down to 0.29 µA in deep standby with RTC and RAM retention. Its peripheral set includes a 32-bit watchdog timer, 16-bit real-time clock, and hardware CRC calculator.
It integrates a 12-bit successive approximation ADC with sample-and-hold, programmable gain amplifier (PGA), and window comparator functionality - all operable under sub-1.8 V supply conditions. The MCU supports up to 80 mA total I/O sink/source capability across 85 GPIO pins, with configurable pull-up/pull-down and interrupt-on-change per port.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CPU, 1.25 DMIPS/MHz at 32 MHz max |
| Flash Memory | 512 KB with ECC, 100k write/erase cycles, 10-year data retention |
| RAM | 32 KB SRAM with parity checking |
| ADC | 12-bit SAR ADC, 24 input channels, 1.0 µs conversion time, PGA support |
| Timers | 16-bit timer array (TAU) with 12 channels, 32-bit real-time clock (RTC) |
| Communication | 2× UART, 1× LIN, 1× I²C, 1× CSI (SPI-compatible) |
| Package | LQFP-100, 14 mm × 14 mm, 0.5 mm pitch, RoHS-compliant |
| Qualification | AEC-Q100 Grade 2 (−40°C to +105°C ambient) |
Pinout & Package
Package: 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch), thermally enhanced with exposed pad (EPAD) connected to VSS for improved heat dissipation and EMI performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, EVDD0, EVDD1 | Power supply inputs | Dedicated analog/digital power domains enable noise isolation for ADC and timers |
| VSS, EVSS0, EVSS1 | Ground returns | Separate analog/digital ground planes reduce coupling and improve ADC SNR |
| RESET | Active-low reset input | Supports external reset assertion and internal POR/BOR detection with programmable delay |
| REGC | Regulator capacitor terminal | Connects 1.0 µF ceramic capacitor to stabilize internal voltage regulator output |
| P00–P03 | Port 0 general-purpose I/O | Configurable as high-current outputs (20 mA) for LED driving or relay control |
| AD00–AD23 | ADC input channels | 24 dedicated analog inputs mapped across ports P0–P9, supporting differential mode |
| CLKP/CLKN | Differential crystal oscillator inputs | Accepts 1–20 MHz crystal or external clock source for high-accuracy timing |
Key Features
| Feature | Design Value |
|---|---|
| Low-power operation | 0.29 µA deep standby current with RTC and 4 KB RAM retention enables battery-powered longevity |
| Functional safety support | Built-in BIST, ECC on flash/SRAM, and lockstep-capable peripherals meet ASIL-B requirements |
| Robust I/O architecture | 85 GPIO with programmable drive strength, glitch filtering, and interrupt-on-change per pin |
| Integrated analog subsystem | 12-bit ADC + PGA + window comparator + temperature sensor enable self-contained sensor signal chain |
| Automotive interface compliance | LIN 2.2A transceiver with automatic sync-break detection and UART/LIN shared pins reduce BOM count |
| Secure firmware update | ROM-based bootloader with signature verification and dual-bank flash for safe over-the-air updates |
Applications
| Automotive Body Control Unit | Industrial Sensor Hub |
|---|---|
Use Scenario: Centralized control of door locks, lighting, wipers, and HVAC in entry-level vehicles. IC Role / Device Role / Timing Role: Main system controller executing LIN slave communication, PWM motor control, and ADC-based cabin temperature sensing. Use Value: AEC-Q100 Grade 2 qualification ensures reliability at 105°C ambient; integrated LIN reduces external transceiver count by one. | Use Scenario: Multi-sensor node aggregating pressure, humidity, and vibration data in factory automation systems. IC Role / Device Role / Timing Role: Data acquisition and preprocessing engine with local edge analytics before Ethernet/Wi-Fi transmission. Use Value: 24-channel ADC with PGA allows direct connection of low-output sensors without external amplifiers; 32 KB RAM supports real-time FFT buffering. |
| Smart Home Appliance Controller | Medical Diagnostic Equipment Interface |
Use Scenario: Motor and display control in washing machines, dishwashers, and refrigerators with energy monitoring. IC Role / Device Role / Timing Role: Primary MCU managing BLDC motor commutation, touch UI, and power metering via shunt ADC. Use Value: 512 KB flash accommodates field-upgradable motor control algorithms and UI assets; ultra-low standby extends battery backup life. | Use Scenario: Front-end interface between analog medical sensors (ECG, SpO₂) and host processing unit in portable diagnostics. IC Role / Device Role / Timing Role: Signal conditioning and isolation-aware data acquisition controller with medical-grade timing accuracy. Use Value: On-chip 12-bit ADC with ±0.5 LSB INL and built-in temperature sensor enable calibrated measurements without external references. |
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 |
|---|---|---|---|
| R7F124FMJ3AFB-C#AA0 | 80-pin LQFP, 384 KB flash, 24 KB RAM, same peripheral set except reduced GPIO count (64 vs. 85) | Suitable for space-constrained designs where fewer I/O and smaller memory footprint are acceptable | Select when board layout area is limited and full 100-pin I/O count is unnecessary |
| SPC560B50L5 | 32-bit Power Architecture core, 512 KB flash, 48 KB RAM, CAN FD, no integrated LIN, higher power consumption | Targeted at higher-performance automotive gateway or ADAS support functions requiring CAN FD | Choose only if CAN FD is mandatory and additional processing headroom justifies higher cost and power |
Compared with R7F124FMJ3AFB-C#AA0 and SPC560B50L5, the R7F124FPJ3AFB-C#BA0 uniquely balances AEC-Q100 Grade 2 compliance, integrated LIN, ultra-low-power operation, and 100-pin expandability - making it optimal for cost-sensitive, thermally constrained body electronics where mixed-signal integration reduces component count.
Availability
R7F124FPJ3AFB-C#BA0 is available at Aetrix Electronics and suitable for automotive body control units, industrial sensor hubs, and smart home appliance controllers requiring stable component supply and long-term lifecycle support.
Supply support for R7F124FPJ3AFB-C#BA0 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/F24 product line delivers high-integration, low-power 16-bit MCUs optimized for automotive body electronics and industrial control applications demanding functional safety, mixed-signal capability, and AEC-Q100 compliance.
FAQ
What is the maximum operating frequency of the R7F124FPJ3AFB-C#BA0?
The R7F124FPJ3AFB-C#BA0 operates at a maximum CPU clock frequency of 32 MHz, achievable using the on-chip high-speed oscillator (HOCO) or an external crystal up to 20 MHz with PLL multiplication. This frequency enables real-time execution of LIN protocol stacks and motor control algorithms while maintaining sub-100 µA/MHz active power consumption.
Does the R7F124FPJ3AFB-C#BA0 support hardware-based functional safety features?
Yes, the R7F124FPJ3AFB-C#BA0 includes hardware safety mechanisms such as flash and SRAM ECC, built-in self-test (BIST) for RAM and peripherals, and lockstep-capable timer modules - enabling ASIL-B compliance when implemented per ISO 26262 guidelines. These features are documented in the RL78/F24 Functional Safety Manual (R01UM0142E).
What is the ADC resolution and channel count supported by the R7F124FPJ3AFB-C#BA0?
The R7F124FPJ3AFB-C#BA0 integrates a 12-bit successive approximation ADC with 24 input channels, supporting single-ended and differential modes, programmable gain amplifier (PGA), and window comparator functionality. All 24 channels are accessible via dedicated analog input pins mapped across multiple ports, with typical INL of ±0.5 LSB.
Is the R7F124FPJ3AFB-C#BA0 qualified for automotive applications?
Yes, the R7F124FPJ3AFB-C#BA0 is AEC-Q100 qualified to Grade 2 (−40°C to +105°C ambient), with design validation covering thermal cycling, humidity testing, and ESD immunity per JESD22 standards. Its qualification documentation and test reports are available through Renesas' official automotive support portal.
What development tools are officially supported for the R7F124FPJ3AFB-C#BA0?
Renesas provides full toolchain support for the R7F124FPJ3AFB-C#BA0, including the CS+ IDE with C compiler, E2 Emulator Lite for debugging, PG-FP6 programmer for mass production, and the RL78/F24 Target Board (YRDKRL78F24) for rapid prototyping. All tools are validated against the R7F124FPJ3AFB-C#BA0 silicon revision and documented in the RL78/F24 Hardware User's Manual (R01UH0944E).
R7F124FPJ3AFB-C#BA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 100-LQFP
- Series:
- RL78/F24
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- RL78
- Core Size:
- 16-Bit
- Speed:
- 40MHz
- Connectivity:
- CANbus, CSI, I2C, LINbus, SPI, UART/USART
- Peripherals:
- LVD, POR, PWM, WDT
- Number of I/O:
- 86
- Program Memory Size:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 16K x 8
- RAM Size:
- 24K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 5.5V
- Data Converters:
- A/D 31x12b SAR; D/A 1x8b
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7F124FPJ3AFB-C#BA0 FAQ
1.How can I place an order for R7F124FPJ3AFB-C#BA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F124FPJ3AFB-C#BA0 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 R7F124FPJ3AFB-C#BA0 reliable?
The price and inventory of R7F124FPJ3AFB-C#BA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7F124FPJ3AFB-C#BA0 is usually 5 days.
3.What payment methods are accepted for R7F124FPJ3AFB-C#BA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7F124FPJ3AFB-C#BA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7F124FPJ3AFB-C#BA0?
R7F124FPJ3AFB-C#BA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7F124FPJ3AFB-C#BA0 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 R7F124FPJ3AFB-C#BA0?
For technical support, including R7F124FPJ3AFB-C#BA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F124FPJ3AFB-C#BA0 requirements.
6.How does Aetrix verify that R7F124FPJ3AFB-C#BA0 is sourced from the original manufacturer or authorized distributors?
All R7F124FPJ3AFB-C#BA0 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 R7F124FPJ3AFB-C#BA0 meets industry standards.
7.What is the process for return or replacement of R7F124FPJ3AFB-C#BA0?
All R7F124FPJ3AFB-C#BA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7F124FPJ3AFB-C#BA0, 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 R7F124FPJ3AFB-C#BA0 part is unused and in its original packaging.
Return procedure for R7F124FPJ3AFB-C#BA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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