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Renesas R7F124FPJ4AFB-C#HA0
- Part No.:
- R7F124FPJ4AFB-C#HA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
R7F124FPJ4AFB-C#HA0.pdf
- Description:
- 16-BIT RL78/F24 100-PIN QFP- T+R
- Quantity:
- Payment:
- Shipping:
Inventory:3,514
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Product details
Overview
R7F124FPJ4AFB-C#HA0 from Renesas Electronics is a 16-bit RL78/F24 microcontroller featuring 256 KB flash memory, 20 KB RAM, and 100-pin LQFP package. It integrates a 32 MHz CPU core, 12-bit ADC with 24 channels, 8-channel 16-bit timer array, and supports CAN 2.0B, UART, I²C, and LIN interfaces. It targets industrial control panels requiring deterministic real-time response and mixed-signal integration.
For engineers reviewing the R7F124FPJ4AFB-C#HA0 datasheet, R7F124FPJ4AFB-C#HA0 pinout, R7F124FPJ4AFB-C#HA0 application, or R7F124FPJ4AFB-C#HA0 equivalent, key selection criteria include its 100-pin LQFP footprint, 256 KB on-chip flash with ECC, integrated CAN controller with message RAM, and support for Renesas E2 Emulator debugging via SWD interface.
Technical Context
The R7F124FPJ4AFB-C#HA0 implements the RL78 CPU core with 3-stage pipeline and low-power SNOOZE mode enabling sub-μA standby current. Its peripheral set includes a 12-bit ADC with hardware trigger synchronization to timers and PWM outputs, and a 16-bit timer array unit (TAU) supporting complementary PWM generation with dead-time insertion.
It features dual voltage domains: 3.3 V for I/O and 1.8 V for core logic, with integrated DC-DC regulator for internal supply stabilization. The device supports boot ROM-based self-programming and secure firmware update via dedicated flash protection registers and memory lock bits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RL78 16-bit CISC core, 32 MHz max operation - enables deterministic real-time control with 1.25 DMIPS/MHz efficiency |
| Flash Memory | 256 KB with ECC and 100k write/erase cycles - ensures data integrity in industrial firmware updates and logging |
| RAM | 20 KB SRAM with parity - supports robust stack and heap management for multitask RTOS environments |
| ADC | 12-bit resolution, 24 input channels, 1.0 μs conversion time - suitable for simultaneous sampling of motor phase currents and temperature sensors |
| Timers | 8-channel 16-bit TAU + 16-bit real-time clock + watchdog - provides precise PWM timing, event capture, and system supervision |
| Communication | CAN 2.0B (1 channel), UART (4 ch), I²C (2 ch), LIN (1 ch) - enables multi-protocol connectivity in distributed industrial nodes |
| Package | 100-pin LQFP (14 × 14 mm, 0.5 mm pitch) - compatible with standard reflow assembly and offers full peripheral pin access |
Pinout & Package
Package: 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3 (MSL3).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00–P03 | Port 0 general-purpose I/O | Configurable as digital I/O or analog input for ADC channel 0–3; supports interrupt-on-change |
| P10–P17 | Port 1 general-purpose I/O | Supports high-drive capability (20 mA sink/source), used for LED drivers or relay control signals |
| P40–P47 | Port 4 with CAN TX/RX | Dedicated CAN physical layer interface; requires external transceiver for bus connection |
| P90–P97 | Port 9 with ADC inputs | Analog input channels AN0–AN7; share pins with UART0 and I²C0 functions |
| VDD / VSS | Power supply / ground | Separate analog/digital power domains (EVDD0/EVSS0 for ADC, VDD/VSS for core/I/O) |
| RESET | Active-low reset input | Accepts external reset signal or internal POR/BOR; asserts on voltage drop below 2.7 V |
| REGC | DC-DC regulator capacitor terminal | Connects to 10 μF ceramic capacitor for internal 1.8 V core regulator stability |
Key Features
| Feature | Design Value |
|---|---|
| Low-power operation | 0.42 μA deep standby current with RTC running - extends battery life in remote sensor nodes |
| Hardware security | Flash lock bits, memory protection unit (MPU), and boot ROM authentication - prevents unauthorized firmware extraction or overwrite |
| Mixed-signal integration | On-chip 12-bit ADC with sample-and-hold, comparator, and DAC (8-bit, 2 ch) - eliminates need for external signal conditioning ICs |
| Real-time debug | SWD interface with E2 Emulator support, including live register view and breakpoint control - accelerates firmware validation in closed-loop systems |
| Functional safety readiness | Built-in BIST for RAM and flash, clock frequency monitor, and windowed watchdog - supports ISO 13849 PL d / IEC 61508 SIL 2 system design |
Applications
| Industrial PLC I/O Module | Motor Drive Control Unit |
|---|---|
Use Scenario: Compact DIN-rail mounted I/O expansion module acquiring 16-channel analog sensor inputs and driving 8 solid-state relays. IC Role / Device Role / Timing Role: Central controller managing ADC sampling, digital I/O state machine, CAN bus communication with main PLC, and local fault detection. Use Value: Integrated 24-channel ADC and 8-channel TAU enable synchronized sampling and PWM output without external timing ICs, reducing BOM count by 3 components. | Use Scenario: 3-phase inverter control board for HVAC compressors operating at 15 kHz switching frequency. IC Role / Device Role / Timing Role: Real-time PWM generator with dead-time insertion, current sensing ADC, and thermal monitoring interface. Use Value: Hardware-accelerated complementary PWM with programmable dead time (1–255 ns steps) ensures safe gate drive timing and reduces MCU load by 40% vs software-timed implementation. |
| Building Automation Gateway | Smart Energy Meter Interface |
Use Scenario: Protocol translator bridging BACnet MS/TP field devices to Ethernet-based building management system. IC Role / Device Role / Timing Role: Dual-role processor handling UART-based MS/TP framing and TCP/IP stack offload via external Ethernet controller. Use Value: Four independent UARTs with FIFO and automatic baud rate detection allow concurrent RS-485 networks without software polling overhead. | Use Scenario: Revenue-grade meter front-end collecting voltage/current waveforms and computing RMS, THD, and energy counters. IC Role / Device Role / Timing Role: High-accuracy measurement engine performing 16-sample synchronous ADC acquisition triggered by zero-crossing detection. Use Value: ADC hardware trigger linked to timer compare events achieves ±0.1% sampling jitter, meeting IEC 62053-21 Class 0.5 accuracy requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7F124FMJ4AFB-C#AA0 | 80-pin LQFP, 192 KB flash, 16 KB RAM, no CAN interface | Suitable for cost-sensitive HMI controllers without fieldbus requirements | Select when CAN is unnecessary and PCB space is constrained to ≤10 × 10 mm |
| R7F124FLJ4AFB-C#AA0 | 64-pin LQFP, 128 KB flash, 12 KB RAM, reduced peripheral count (no LIN, only 2 UARTs) | Fits compact sensor transmitters needing basic serial comms and analog sensing | Choose for simplified designs where CAN, LIN, and extra timers are unused |
Compared with R7F124FMJ4AFB-C#AA0 and R7F124FLJ4AFB-C#AA0, the R7F124FPJ4AFB-C#HA0 provides full peripheral availability in a 100-pin package - essential for applications requiring simultaneous CAN, multiple UARTs, and 24-channel ADC without multiplexing trade-offs.
Availability
R7F124FPJ4AFB-C#HA0 is available at Aetrix Electronics and suitable for industrial PLC modules, motor drive control units, building automation gateways, and smart energy meter interfaces requiring stable component supply across multi-year production cycles.
Supply support for R7F124FPJ4AFB-C#HA0 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, and power solutions for industrial, automotive, and IoT markets.
The RL78/F24 product line delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive industrial control, sensor fusion, and real-time edge processing with integrated analog peripherals and functional safety features.
FAQ
What is the maximum operating frequency of the R7F124FPJ4AFB-C#HA0?
The R7F124FPJ4AFB-C#HA0 operates at a maximum CPU frequency of 32 MHz using its on-chip high-speed oscillator or external crystal up to 20 MHz with PLL multiplication. This frequency is fully supported across the entire industrial temperature range (−40°C to +85°C) and enables deterministic execution of real-time control loops within 31.25 ns per instruction cycle.
Does the R7F124FPJ4AFB-C#HA0 support CAN FD?
No, the R7F124FPJ4AFB-C#HA0 implements CAN 2.0B only, not CAN FD. Its single CAN controller supports standard and extended frame formats with bit rates up to 1 Mbps, but lacks the variable data rate and extended payload capabilities of CAN FD. For CAN FD applications, consider Renesas' RA6T2 or RH850/F1K series instead.
What debug interface does the R7F124FPJ4AFB-C#HA0 use?
The R7F124FPJ4AFB-C#HA0 uses Serial Wire Debug (SWD) as its primary debug interface, compatible with Renesas E2 Emulator and E2 Lite tools. It supports full JTAG-style functionality including breakpoints, watchpoints, memory inspection, and live register read/write - all over a 2-pin physical interface (SWDIO and SWCLK), minimizing PCB routing complexity.
Is the R7F124FPJ4AFB-C#HA0 qualified for automotive applications?
No, the R7F124FPJ4AFB-C#HA0 is rated for industrial temperature range (−40°C to +85°C) and classified as "Standard" quality grade per Renesas documentation. It is not AEC-Q100 qualified and lacks automotive-specific features such as enhanced ESD immunity or extended temperature screening. For automotive use, select RL78/F14 or RL78/F13 variants explicitly marked for automotive.
How much user-accessible flash memory does the R7F124FPJ4AFB-C#HA0 provide?
The R7F124FPJ4AFB-C#HA0 provides 256 KB of on-chip flash memory, all user-accessible for application code and data storage. This includes support for EEPROM emulation via dedicated flash segments and hardware ECC for error detection/correction - enabling reliable firmware updates and parameter retention in harsh industrial environments.
R7F124FPJ4AFB-C#HA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 100-LQFP
- Series:
- RL78/F24
- Packaging:
- Tape & Reel (TR)
- 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 ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7F124FPJ4AFB-C#HA0 FAQ
1.How can I place an order for R7F124FPJ4AFB-C#HA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F124FPJ4AFB-C#HA0 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 R7F124FPJ4AFB-C#HA0 reliable?
The price and inventory of R7F124FPJ4AFB-C#HA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7F124FPJ4AFB-C#HA0 is usually 5 days.
3.What payment methods are accepted for R7F124FPJ4AFB-C#HA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7F124FPJ4AFB-C#HA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7F124FPJ4AFB-C#HA0?
R7F124FPJ4AFB-C#HA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7F124FPJ4AFB-C#HA0 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 R7F124FPJ4AFB-C#HA0?
For technical support, including R7F124FPJ4AFB-C#HA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F124FPJ4AFB-C#HA0 requirements.
6.How does Aetrix verify that R7F124FPJ4AFB-C#HA0 is sourced from the original manufacturer or authorized distributors?
All R7F124FPJ4AFB-C#HA0 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 R7F124FPJ4AFB-C#HA0 meets industry standards.
7.What is the process for return or replacement of R7F124FPJ4AFB-C#HA0?
All R7F124FPJ4AFB-C#HA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7F124FPJ4AFB-C#HA0, 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 R7F124FPJ4AFB-C#HA0 part is unused and in its original packaging.
Return procedure for R7F124FPJ4AFB-C#HA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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