My Inquiry
My Account
Renesas R7F123FLG3AFB-C#BA0
- Part No.:
- R7F123FLG3AFB-C#BA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R7F123FLG3AFB-C#BA0.pdf
- Description:
- MCU:RL78
- Quantity:
- Payment:
- Shipping:
Inventory:3,582
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
R7F123FLG3AFB-C#BA0 from Renesas Electronics is a 16-bit RL78/F23 microcontroller in 64-pin LQFP package, featuring 256 KB flash memory, 20 KB RAM, and integrated 12-bit ADC with 24 channels. It operates at up to 32 MHz, supports LIN bus and I²C interfaces, and targets low-power industrial control applications including motor drive supervision and sensor-based monitoring systems.
For engineers reviewing the R7F123FLG3AFB-C#BA0 datasheet, R7F123FLG3AFB-C#BA0 pinout, R7F123FLG3AFB-C#BA0 application, or R7F123FLG3AFB-C#BA0 equivalent, key selection criteria include its 64-pin LQFP footprint, 256 KB on-chip flash with EEPROM emulation, 12-bit ADC resolution with hardware averaging, LIN v2.2 compliance, and support for single-cycle multiplication/division instructions.
Technical Context
The R7F123FLG3AFB-C#BA0 implements the RL78 CPU core with 3-stage pipeline and supports both 8-bit and 16-bit data operations. Its peripheral set includes a 16-bit timer array unit (TAU) with complementary PWM output, a serial array unit (SAU) configurable as UART, CSI, or I²C, and a dedicated LIN controller with automatic baud rate detection and checksum generation.
Power management features include three low-power modes (HALT, STOP, and DEEP STOP), voltage detection circuitry (VDD monitor with reset and interrupt), and on-chip debug interface supporting E2 Lite emulator. The device integrates a 12-bit ADC with programmable sampling time, conversion trigger sources (timer, external pin, software), and built-in temperature sensor.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CPU with 3-stage pipeline and 1.25 DMIPS/MHz performance |
| Flash Memory | 256 KB on-chip flash with 100,000 write/erase cycles and EEPROM emulation capability |
| RAM | 20 KB SRAM with retention in STOP mode via backup domain |
| ADC | 12-bit successive approximation ADC with 24 input channels and hardware averaging up to 32 samples |
| Timers | 16-bit TAU with 8 channels, 8-bit real-time clock (RTC), and watchdog timer (WDT) |
| Communication | LIN v2.2 controller, SAU supporting UART/I²C/CSI, and 1-wire communication interface |
| Operating Voltage | 1.6 V to 5.5 V supply range enabling direct interface with legacy 5 V peripherals |
Pinout & Package
Package: 64-pin LQFP (10 mm × 10 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00–P07 | Port 0 bidirectional I/O | Configurable as general-purpose I/O or alternate functions including LIN_TX, LIN_RX, and ADC inputs |
| P10–P17 | Port 1 bidirectional I/O | Supports external interrupt, comparator input, and TAU channel outputs |
| P30–P34 | Port 3 bidirectional I/O | Includes RTC oscillator pins (X1/X2) and SAU0 clock input |
| P40–P47 | Port 4 bidirectional I/O | Provides ADC analog inputs (AN0–AN7), DAC output, and comparator reference |
| VDD / VSS | Power supply / Ground | Dual power domains: EVDD0/EVSS0 for analog peripherals, EVDD1/EVSS1 for digital logic |
| RESET | Active-low reset input | Accepts external reset signal; internal power-on reset and voltage detector also available |
| REGC | Regulator capacitor terminal | Connects 1 μF ceramic capacitor to stabilize on-chip voltage regulator output |
Key Features
| Feature | Design Value |
|---|---|
| Low-power operation | DEEP STOP mode consumes ≤0.25 μA with RTC running and RAM retention enabled |
| LIN bus integration | Dedicated LIN controller supports automatic sync-break detection, ID filtering, and CRC-8 checksum per LIN 2.2 |
| ADC precision | 12-bit resolution with ±1 LSB INL/DNL, 1.2 μs conversion time, and hardware-triggered sequence scanning |
| Debug interface | On-chip debug circuit compatible with E2 Lite emulator; supports full-speed execution, breakpoint, and memory access during debug |
| Flash reliability | Supports background operation (BGO) for flash programming during code execution; includes error correction code (ECC) for read protection |
Applications
| Industrial Motor Control | Smart Sensor Node |
|---|---|
Use Scenario: Supervisory control of BLDC motor drives in HVAC blowers and pump systems. IC Role / Device Role / Timing Role: Main system controller executing commutation logic, fault monitoring, and LIN-based command interface. Use Value: Integrated LIN controller eliminates external transceiver; 24-channel ADC enables simultaneous current/voltage/temperature sensing without external mux. | Use Scenario: Battery-powered environmental sensor hub collecting temperature, humidity, and CO₂ data. IC Role / Device Role / Timing Role: Low-power host MCU managing sensor polling, data preprocessing, and wireless module wake-up scheduling. Use Value: DEEP STOP mode with RTC wake-up reduces average current to <1.5 μA; on-chip EEPROM emulation stores calibration coefficients without external NVM. |
| Automotive Body Electronics | Home Appliance Control |
Use Scenario: Door module controlling window lift, mirror adjustment, and interior lighting in entry-level vehicles. IC Role / Device Role / Timing Role: LIN slave node receiving commands from body control module (BCM) and driving local actuators. Use Value: LIN v2.2 compliance ensures interoperability with OEM BCMs; 5.5 V tolerant I/O simplifies interface with 12 V automotive power rails. | Use Scenario: Main control unit in smart washing machines managing motor sequencing, water level sensing, and user interface. IC Role / Device Role / Timing Role: Real-time coordinator between motor driver, pressure sensor, display, and safety interlocks. Use Value: 16-bit TAU with complementary PWM supports precise inverter control; 256 KB flash accommodates field-upgradable firmware and diagnostic logs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7F123FLG3CFB-C#BA0 | Same package and pinout; differs only in factory-programmed option byte settings (e.g., security lock, boot mode) | No functional difference in hardware; intended for different firmware provisioning workflows | Select based on required factory configuration, not electrical or architectural differences |
| R7F124FLJ3AFB-C#AA0 | RL78/F24 variant with identical 64-pin LQFP package, 256 KB flash, but adds CAN FD controller and enhanced TAU with dead-time insertion | Suitable where CAN FD communication or advanced motor gate drive timing is required | Choose R7F124FLJ3AFB-C#AA0 only if CAN FD or enhanced PWM timing features are mandatory |
Compared with R7F123FLG3AFB-C#BA0, the R7F123FLG3CFB-C#BA0 offers identical functionality with preconfigured security options, while R7F124FLJ3AFB-C#AA0 extends capability with CAN FD and advanced PWM-neither is pin-compatible without verifying PCB layout compatibility for CAN signal routing and decoupling.
Availability
R7F123FLG3AFB-C#BA0 is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, and automotive body electronics requiring stable component supply and long-term lifecycle support.
Supply support for R7F123FLG3AFB-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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and IoT markets.
The RL78/F23 product line delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive, battery-operated, and LIN-connected embedded systems requiring high integration and long-term availability.
FAQ
What is the maximum operating frequency of the R7F123FLG3AFB-C#BA0?
The R7F123FLG3AFB-C#BA0 operates at a maximum CPU clock frequency of 32 MHz using the high-speed on-chip oscillator or external crystal. This frequency is achievable across the full 1.6 V to 5.5 V supply range and supports single-cycle instruction execution for critical timing tasks such as motor commutation and LIN frame handling.
Does the R7F123FLG3AFB-C#BA0 include hardware support for LIN communication?
Yes, the R7F123FLG3AFB-C#BA0 integrates a dedicated LIN controller compliant with LIN specification v2.2. It provides automatic sync-break detection, configurable ID filtering, CRC-8 checksum generation and verification, and seamless integration with the SAU peripheral for physical layer interfacing-eliminating need for external LIN transceivers in many designs.
What is the flash endurance and data retention specification for R7F123FLG3AFB-C#BA0?
The R7F123FLG3AFB-C#BA0 guarantees 100,000 write/erase cycles for its 256 KB on-chip flash memory, with data retention exceeding 20 years at +85°C. EEPROM emulation is supported via dedicated flash segments managed by Renesas-provided library routines, enabling reliable non-volatile parameter storage without external components.
Can the R7F123FLG3AFB-C#BA0 operate from a 5 V supply?
Yes, the R7F123FLG3AFB-C#BA0 supports an operating voltage range of 1.6 V to 5.5 V. Its I/O pins are 5 V tolerant when VDD ≥ 2.7 V, allowing direct connection to 5 V peripherals without level shifters-critical for industrial and automotive applications where legacy 5 V signaling remains common.
What debug tools are compatible with R7F123FLG3AFB-C#BA0?
The R7F123FLG3AFB-C#BA0 is fully supported by Renesas' E2 Lite emulator and PG-FP6 flash programmer. It uses the standard 10-pin SWD/JTAG debug interface and enables real-time debugging, flash programming, memory inspection, and breakpoint setting without halting peripheral operation-essential for validating timing-critical LIN and motor control firmware.
R7F123FLG3AFB-C#BA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- RL78/F23
- 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:
- 52
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 12K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 5.5V
- Data Converters:
- A/D 24x12b SAR
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7F123FLG3AFB-C#BA0 FAQ
1.How can I place an order for R7F123FLG3AFB-C#BA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F123FLG3AFB-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 R7F123FLG3AFB-C#BA0 reliable?
The price and inventory of R7F123FLG3AFB-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 R7F123FLG3AFB-C#BA0 is usually 5 days.
3.What payment methods are accepted for R7F123FLG3AFB-C#BA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7F123FLG3AFB-C#BA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7F123FLG3AFB-C#BA0?
R7F123FLG3AFB-C#BA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7F123FLG3AFB-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 R7F123FLG3AFB-C#BA0?
For technical support, including R7F123FLG3AFB-C#BA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F123FLG3AFB-C#BA0 requirements.
6.How does Aetrix verify that R7F123FLG3AFB-C#BA0 is sourced from the original manufacturer or authorized distributors?
All R7F123FLG3AFB-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 R7F123FLG3AFB-C#BA0 meets industry standards.
7.What is the process for return or replacement of R7F123FLG3AFB-C#BA0?
All R7F123FLG3AFB-C#BA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7F123FLG3AFB-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 R7F123FLG3AFB-C#BA0 part is unused and in its original packaging.
Return procedure for R7F123FLG3AFB-C#BA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R7F123FLG3AFB-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…
