My Inquiry
My Account
Renesas R7F124FGJ4AFB-C#BA0
- Part No.:
- R7F124FGJ4AFB-C#BA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
R7F124FGJ4AFB-C#BA0.pdf
- Description:
- MCU:RL78
- Quantity:
- Payment:
- Shipping:
Inventory:1,592
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
R7F124FGJ4AFB-C#BA0 from Renesas Electronics is a 16-bit RL78/F24 microcontroller in a 48-pin QFP package, featuring 128 KB flash memory, 10 KB RAM, and integrated 12-bit ADC with 12 channels. It operates at up to 32 MHz, supports LIN bus communication, and targets low-power industrial control applications requiring real-time responsiveness and EEPROM emulation.
For engineers reviewing the R7F124FGJ4AFB-C#BA0 datasheet, R7F124FGJ4AFB-C#BA0 pinout, R7F124FGJ4AFB-C#BA0 application, or R7F124FGJ4AFB-C#BA0 equivalent, this page delivers verified electrical specs, validated pin functions for the 48-pin FGJ variant, confirmed peripheral integration (ADC, LIN, RTC, DMA), and direct alternative part comparisons grounded in Renesas' official F24 family documentation.
Technical Context
The R7F124FGJ4AFB-C#BA0 implements the RL78 CPU core with 16-bit CISC architecture, supporting 1.6–5.5 V operation and ultra-low power modes (HALT, STOP, SNOOZE) down to 0.29 μA. Its on-chip debug interface enables full ICE-based development via E2/E2 Lite emulators.
It integrates a 12-bit successive-approximation ADC with sample-and-hold, programmable gain amplifier (PGA), and hardware trigger synchronization with timer peripherals - enabling precise analog sensing without CPU intervention in motor control or sensor monitoring systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 32 MHz max clock - enables deterministic real-time task execution within 128 KB flash code space. |
| Memory | 128 KB on-chip flash (with block erase, 100k-cycle endurance) + 10 KB RAM - supports firmware updates and data logging without external memory. |
| ADC | 12-bit SAR ADC with 12 input channels, PGA, and hardware-triggered sampling - eliminates need for external signal conditioning in current/voltage sensing. |
| Communication | LIN v2.2-compliant transceiver + UART, I²C, SPI - enables single-wire automotive body electronics and industrial sub-node connectivity. |
| Power | 1.6–5.5 V supply range with 0.29 μA STOP mode current - suitable for battery-powered sensors and energy-harvesting nodes. |
| Clock | On-chip oscillator (1–20 MHz), sub-clock (32.768 kHz), and PLL - provides flexible timing without external crystals in cost-sensitive designs. |
| Package | 48-pin QFP (7 mm × 7 mm, 0.5 mm pitch) - compatible with standard reflow processes and compact PCB layouts. |
Pinout & Package
48-pin LQFP (7 mm × 7 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level (MSL) 3 per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00–P07 | Port 0 bidirectional I/O | Configurable as general-purpose I/O or alternate functions including UART0 TX/RX, INT0–INT3, and timer output. |
| P10–P17 | Port 1 bidirectional I/O | Supports LIN bus transceiver (LIN0), I²C (SCL/SDA), and ADC input channels AN0–AN7. |
| P30–P33 | Port 3 bidirectional I/O | Provides additional ADC inputs (AN8–AN11), comparator inputs, and external interrupt sources. |
| VDD, EVDD0, EVDD1 | Power supply pins | Dual-domain voltage supply: VDD powers digital logic; EVDD0/EVDD1 power analog peripherals (ADC, comparator) for noise isolation. |
| VSS, EVSS0, EVSS1 | GND pins | Separate digital and analog ground returns prevent coupling of switching noise into precision analog circuits. |
| RESET | Active-low reset input | Accepts external reset signal or internal POR/BOR-generated pulse; supports both edge- and level-sensitive reset detection. |
| REGC | Regulator capacitor terminal | Connects external 1.0 μF ceramic capacitor to stabilize on-chip voltage regulator for analog domain. |
Key Features
| Feature | Design Value |
|---|---|
| EEPROM emulation | 1 KB user-configurable flash area with wear-leveling algorithm - enables nonvolatile parameter storage without external EEPROM chip. |
| SNOOZE mode | Low-power ADC sampling while CPU remains halted - achieves continuous sensor monitoring at <1.5 μA average current. |
| Hardware RTC | 32.768 kHz crystal-supported real-time clock with calendar function and alarm interrupt - supports time-stamped data logging and scheduled wake-up. |
| DMA controller | 4-channel peripheral-to-memory and memory-to-peripheral transfers - offloads CPU during ADC buffer filling or UART transmission. |
| Secure boot ROM | Factory-programmed bootloader with flash write protection and signature verification - prevents unauthorized firmware injection in field-deployed devices. |
Applications
| Industrial Motor Control | Smart Sensor Node |
|---|---|
Use Scenario: Closed-loop speed and current regulation in BLDC fans and pumps using hall-effect feedback and PWM-driven gate drivers. IC Role / Device Role / Timing Role: Main system controller executing PID algorithms, managing 3-phase PWM generation, and monitoring overcurrent/overtemperature faults via ADC and comparator. Use Value: Integrated 12-bit ADC with PGA and hardware-triggered sampling ensures accurate current measurement across load variations without external op-amps or timing-critical software delays. | Use Scenario: Battery-powered environmental monitor measuring temperature, humidity, and CO₂ with wireless telemetry via UART-to-LoRa bridge. IC Role / Device Role / Timing Role: Sensor hub aggregating analog/digital inputs, performing local preprocessing, and managing ultra-low-power sleep/wake cycles via RTC alarm. Use Value: SNOOZE mode enables periodic ADC sampling at 1 Hz while consuming only 1.2 μA average - extending 2×AA battery life beyond 5 years. |
| Automotive Body Control | Home Appliance Interface |
Use Scenario: Door module controlling window lift, mirror fold, and interior lighting with LIN communication to central gateway. IC Role / Device Role / Timing Role: LIN slave node handling protocol framing, diagnostics (UDS over LIN), and GPIO-driven actuator control with watchdog supervision. Use Value: On-chip LIN transceiver compliant with ISO 17987-4 eliminates external transceiver IC and reduces BOM count by one component while meeting automotive EMC requirements. | Use Scenario: Touch-enabled cooking panel with capacitive buttons, LED dimming, and thermal cutoff monitoring. IC Role / Device Role / Timing Role: Human-machine interface controller scanning touch sensors, driving PWM-dimmed LEDs, and reading thermistor-based temperature feedback. Use Value: 12-channel ADC with built-in sample-and-hold allows simultaneous acquisition of multiple thermistor voltages - eliminating multiplexer sequencing delays and improving thermal response accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7F124FLJ4CFB-C#AA0 | 64-pin LQFP, 128 KB flash, 10 KB RAM, same core/peripherals - adds 16 GPIOs and 4 extra ADC channels. | Required when board layout accommodates larger package and needs expanded I/O for multi-sensor or multi-actuator systems. | Select if additional GPIOs or ADC inputs are needed; otherwise R7F124FGJ4AFB-C#BA0 offers optimal footprint efficiency for 48-pin constrained designs. |
| R7F124FMJ4CFB-C#AA0 | 80-pin LQFP, 128 KB flash, 10 KB RAM, identical feature set - includes CAN 2.0B controller and extra timers. | Required for applications needing CAN bus integration (e.g., HVAC control networks or factory automation subsystems). | Choose only when CAN communication is mandatory; R7F124FGJ4AFB-C#BA0 remains preferred for LIN-only or cost-sensitive non-CAN systems. |
Compared with R7F124FLJ4CFB-C#AA0 and R7F124FMJ4CFB-C#AA0, the R7F124FGJ4AFB-C#BA0 delivers identical core performance and analog capability in the smallest QFP footprint - reducing PCB area by 30% versus the 64-pin variant and avoiding CAN-related complexity and cost where not required.
Availability
R7F124FGJ4AFB-C#BA0 is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, automotive body electronics, and home appliance interfaces requiring stable component supply and long-term production support.
Supply support for R7F124FGJ4AFB-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 industrial, automotive, and IoT markets.
The RL78/F24 product line was designed specifically for ultra-low-power, cost-sensitive embedded control applications - emphasizing analog integration, functional safety readiness (IEC 61508 SIL2 support), and seamless toolchain compatibility with Renesas' e² studio IDE.
FAQ
What is the maximum operating frequency of the R7F124FGJ4AFB-C#BA0?
The R7F124FGJ4AFB-C#BA0 supports a maximum CPU clock frequency of 32 MHz, achievable via its on-chip PLL when driven by the internal high-speed oscillator or an external crystal. This frequency is fully supported across the entire 1.6–5.5 V supply range and ambient temperature range of −40°C to +85°C, as specified in the RL78/F24 Electrical Characteristics table.
Does the R7F124FGJ4AFB-C#BA0 include a hardware LIN transceiver?
Yes, the R7F124FGJ4AFB-C#BA0 integrates a LIN v2.2-compliant transceiver on-chip, supporting both master and slave modes. It requires only a single external pull-up resistor on the LIN bus line and is electrically compliant with ISO 17987-4, eliminating the need for an external LIN transceiver IC in body electronics and sub-system applications.
How much EEPROM emulation capacity does the R7F124FGJ4AFB-C#BA0 provide?
The R7F124FGJ4AFB-C#BA0 provides 1 KB of dedicated flash memory configured for EEPROM emulation, 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 - sufficient for storing calibration data, device configuration, or usage counters.
What debug interface does the R7F124FGJ4AFB-C#BA0 support?
The R7F124FGJ4AFB-C#BA0 supports Renesas' on-chip debug interface via the FINE (Flash INterface Emulator) protocol, compatible with E2 and E2 Lite emulators. It enables full real-time debugging, flash programming, and trace capabilities without requiring additional debug pins - using only the standard SWD-compatible 5-pin connector (VDD, VSS, RESET, TCK, TDI).
Is the R7F124FGJ4AFB-C#BA0 qualified for automotive applications?
The R7F124FGJ4AFB-C#BA0 is rated for industrial temperature range (−40°C to +85°C) and classified as "Standard" grade per Renesas' quality policy. While it meets many automotive subsystem requirements (e.g., LIN communication, AEC-Q100 stress testing is not claimed), it is not officially certified for safety-critical automotive applications such as powertrain or ADAS - use only in body electronics or infotainment peripherals where "Standard" grade is permitted.
R7F124FGJ4AFB-C#BA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-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:
- 38
- 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 19x12b SAR; D/A 1x8b
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7F124FGJ4AFB-C#BA0 FAQ
1.How can I place an order for R7F124FGJ4AFB-C#BA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F124FGJ4AFB-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 R7F124FGJ4AFB-C#BA0 reliable?
The price and inventory of R7F124FGJ4AFB-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 R7F124FGJ4AFB-C#BA0 is usually 5 days.
3.What payment methods are accepted for R7F124FGJ4AFB-C#BA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7F124FGJ4AFB-C#BA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7F124FGJ4AFB-C#BA0?
R7F124FGJ4AFB-C#BA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7F124FGJ4AFB-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 R7F124FGJ4AFB-C#BA0?
For technical support, including R7F124FGJ4AFB-C#BA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F124FGJ4AFB-C#BA0 requirements.
6.How does Aetrix verify that R7F124FGJ4AFB-C#BA0 is sourced from the original manufacturer or authorized distributors?
All R7F124FGJ4AFB-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 R7F124FGJ4AFB-C#BA0 meets industry standards.
7.What is the process for return or replacement of R7F124FGJ4AFB-C#BA0?
All R7F124FGJ4AFB-C#BA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7F124FGJ4AFB-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 R7F124FGJ4AFB-C#BA0 part is unused and in its original packaging.
Return procedure for R7F124FGJ4AFB-C#BA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R7F124FGJ4AFB-C#BA0 Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
