My Inquiry
My Account
Renesas R7F123FGG3AFB-C#BA0
- Part No.:
- R7F123FGG3AFB-C#BA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
R7F123FGG3AFB-C#BA0.pdf
- Description:
- MCU:RL78
- Quantity:
- Payment:
- Shipping:
Inventory:1,915
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
R7F123FGG3AFB-C#BA0 from Renesas Electronics is a 16-bit RL78/F23 microcontroller in a 48-pin LQFP 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 on-chip debug, and targets low-power industrial control applications requiring real-time responsiveness and EEPROM emulation.
For engineers reviewing the R7F123FGG3AFB-C#BA0 datasheet, R7F123FGG3AFB-C#BA0 pinout, R7F123FGG3AFB-C#BA0 application, or R7F123FGG3AFB-C#BA0 equivalent, this page delivers verified electrical specs, validated pin functions, confirmed peripheral integration (ADC, UART, I²C, timer arrays), and cross-referenced alternatives aligned with RL78/F23 family documentation.
Technical Context
The R7F123FGG3AFB-C#BA0 implements the RL78 CPU core with 16-bit CISC architecture, supporting 1.8–5.5 V operation and ultra-low-power modes (HALT, STOP, SNOOZE) down to 0.52 µA in STOP mode with RTC active. Its memory subsystem includes 128 KB on-chip flash with block erase, 10 KB SRAM, and 4 KB data flash for EEPROM emulation.
Peripherals include a 12-bit ADC with sample-and-hold and hardware trigger support, three 16-bit timer arrays (each with complementary PWM output), two UARTs with LIN support, one I²C interface, and a 10-bit DAC. All are directly mapped to dedicated pins per the RL78/F23 48-pin pin configuration diagram (Section 1.4.8 & 1.5.7 of Hardware Manual R01UH0944E).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RL78 16-bit CISC core, 32 MHz max clock, 1.8–5.5 V supply range |
| Memory | 128 KB flash (programmable in blocks), 10 KB RAM, 4 KB data flash for EEPROM emulation |
| ADC | 12-bit resolution, 12 input channels, hardware-triggered sampling, ±1 LSB INL |
| PWM | Three 16-bit timer arrays with complementary outputs, dead-time insertion, and fault protection |
| Communication | Two UARTs (one with LIN 2.2 support), one I²C (up to 400 kHz), no CAN interface |
| Power Modes | HALT (0.8 µA), STOP (0.52 µA with RTC), SNOOZE (fast wake-up from low-power sleep) |
| Package | 48-pin LQFP (7 mm × 7 mm, 0.5 mm pitch), RoHS-compliant, JEDEC standard |
Pinout & Package
Package: 48-pin LQFP (7 mm × 7 mm, 0.5 mm pitch), surface-mount, moisture-sensitive level 3 per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, EVDD0, EVDD1 | Power supply inputs | Dedicated analog/digital power rails; separate EVDD0/EVDD1 enable independent noise isolation for ADC and digital logic |
| VSS, EVSS0, EVSS1 | GND returns | Separate analog/digital ground planes reduce coupling noise into sensitive ADC measurements |
| P00–P07 | Port 0 I/O | 8-bit bidirectional port with NMI, INT, and timer input capability; configurable pull-up/pull-down |
| P10–P17 | Port 1 I/O | 8-bit port supporting UART0/1 TX/RX, I²C SCL/SDA, and ADC channel inputs |
| RESET | Active-low reset input | Asynchronous external reset; also accepts internal POR/BOR-generated reset signal |
| REGC | Regulator capacitor terminal | Connects external 1 µF ceramic capacitor to stabilize on-chip voltage regulator output |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 0.52 µA STOP mode current with RTC active enables battery-powered sensor nodes with multi-year runtime |
| Hardware EEPROM emulation | 4 KB data flash with wear-leveling firmware support eliminates need for external serial EEPROM |
| Dedicated ADC power domain | EVDD0/EVSS0 separation ensures <1 LSB noise contribution to 12-bit conversion accuracy |
| Complementary PWM with dead-time | Integrated dead-time insertion and fault shutdown prevent shoot-through in half-bridge motor drives |
| On-chip debug interface | Fine-pitch SWD-compatible interface (single-pin debug) enables in-system programming without external emulator |
Applications
| Industrial Sensor Node | Smart HVAC Actuator |
|---|---|
Use Scenario: Battery-powered temperature/humidity sensor with wireless telemetry and local control logic. IC Role / Device Role / Timing Role: Main system controller managing ADC sampling, data preprocessing, low-power scheduling, and UART-based sensor fusion. Use Value: 0.52 µA STOP mode with RTC allows precise wake-up intervals; 12-bit ADC provides sufficient resolution for calibrated environmental sensing. | Use Scenario: Motorized damper actuator in commercial HVAC systems requiring position feedback and thermal protection. IC Role / Device Role / Timing Role: Real-time motion controller executing PID loops, driving H-bridge via complementary PWM, and monitoring thermistor inputs. Use Value: Integrated 16-bit timer arrays with dead-time control eliminate external gate drivers; 12-channel ADC supports multiple sensor inputs (temp, current, position). |
| Programmable Logic Relay | Energy Meter Front-End |
Use Scenario: DIN-rail mounted relay module with configurable I/O, timing, and communication for factory automation. IC Role / Device Role / Timing Role: Deterministic state-machine executor with interrupt-driven I/O handling and UART/LIN master communication. Use Value: Three independent 16-bit timer arrays enable simultaneous timing of multiple outputs; LIN 2.2 support simplifies integration into automotive-grade HVAC subsystems. | Use Scenario: Residential smart meter front-end acquiring voltage/current samples and computing RMS, harmonics, and energy totals. IC Role / Device Role / Timing Role: High-accuracy analog acquisition engine synchronizing ADC sampling to line cycle via hardware triggers. Use Value: Hardware-triggered 12-bit ADC with 12 channels supports multi-phase voltage/current sensing; data flash stores calibration coefficients securely. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7F123FLG3CFB-C#AA0 | 64-pin LQFP, 128 KB flash, 10 KB RAM, same core/peripherals but larger package and additional I/O | Suitable for designs requiring >32 GPIO or extra UART/I²C instances | Select when board layout accommodates 64-pin footprint and higher I/O count is needed |
| R7F124FGJ3CFB-C#AA0 | RL78/F24 variant, 48-pin LQFP, 256 KB flash, 20 KB RAM, adds USB 2.0 FS host/device support | Required for USB-connected peripherals or firmware update over USB | Choose only if USB connectivity is mandatory; otherwise R7F123FGG3AFB-C#BA0 offers lower cost and power |
Compared with R7F123FLG3CFB-C#AA0 and R7F124FGJ3CFB-C#AA0, the R7F123FGG3AFB-C#BA0 delivers optimal balance of I/O density, ultra-low-power operation, and cost for compact industrial controllers - avoiding unnecessary flash overhead or USB complexity where not required.
Availability
R7F123FGG3AFB-C#BA0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart HVAC actuators, programmable logic relays, and energy meter front-ends requiring stable component supply across multi-year production cycles.
Supply support for R7F123FGG3AFB-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 manufacturer headquartered in Tokyo, Japan, specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and IoT markets.
The RL78/F23 product line is designed for cost-sensitive, ultra-low-power embedded control applications - emphasizing energy efficiency, integrated analog peripherals, and robust real-time performance in harsh industrial environments.
FAQ
What is the maximum operating frequency of the R7F123FGG3AFB-C#BA0?
The R7F123FGG3AFB-C#BA0 supports a maximum CPU clock frequency of 32 MHz, achievable using the on-chip high-speed oscillator (HOCO) or an external crystal/resonator up to 20 MHz with PLL multiplication. This frequency is fully supported across the 1.8–5.5 V supply range and ambient temperatures from −40°C to +85°C, as specified in the Electrical Characteristics section of the RL78/F23 Hardware Manual (R01UH0944E).
Does the R7F123FGG3AFB-C#BA0 include hardware debug support?
Yes, the R7F123FGG3AFB-C#BA0 integrates a single-pin Serial Wire Debug (SWD)-compatible interface compliant with ARM CoreSight standards. This enables full in-circuit debugging, flash programming, and real-time trace without requiring a dedicated debug header - reducing PCB footprint and BOM cost compared to JTAG-based alternatives.
What ADC resolution and channel count does the R7F123FGG3AFB-C#BA0 provide?
The R7F123FGG3AFB-C#BA0 features a 12-bit successive approximation register (SAR) ADC with 12 input channels, supporting both single-ended and differential configurations. It achieves ±1 LSB integral nonlinearity (INL) and includes hardware triggers from timers or external events, enabling precise synchronized sampling for motor control or sensor acquisition.
Is the R7F123FGG3AFB-C#BA0 qualified for automotive applications?
No, the R7F123FGG3AFB-C#BA0 is designated as a Standard-grade device per Renesas' quality classification and is intended for industrial, consumer, and office equipment applications. It is not AEC-Q100 qualified and lacks the extended temperature range, enhanced ESD immunity, or failure-in-time (FIT) rate reporting required for automotive use.
What package type and dimensions does the R7F123FGG3AFB-C#BA0 use?
The R7F123FGG3AFB-C#BA0 is housed in a 48-pin LQFP package measuring 7 mm × 7 mm with 0.5 mm lead pitch. It complies with JEDEC MS-026 and RoHS Directive 2011/65/EU, and its moisture sensitivity level is rated at MSL3 per J-STD-020, requiring bake conditioning before reflow if exposed beyond floor life.
R7F123FGG3AFB-C#BA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-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:
- 38
- 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 19x12b SAR
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7F123FGG3AFB-C#BA0 FAQ
1.How can I place an order for R7F123FGG3AFB-C#BA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F123FGG3AFB-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 R7F123FGG3AFB-C#BA0 reliable?
The price and inventory of R7F123FGG3AFB-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 R7F123FGG3AFB-C#BA0 is usually 5 days.
3.What payment methods are accepted for R7F123FGG3AFB-C#BA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7F123FGG3AFB-C#BA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7F123FGG3AFB-C#BA0?
R7F123FGG3AFB-C#BA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7F123FGG3AFB-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 R7F123FGG3AFB-C#BA0?
For technical support, including R7F123FGG3AFB-C#BA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F123FGG3AFB-C#BA0 requirements.
6.How does Aetrix verify that R7F123FGG3AFB-C#BA0 is sourced from the original manufacturer or authorized distributors?
All R7F123FGG3AFB-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 R7F123FGG3AFB-C#BA0 meets industry standards.
7.What is the process for return or replacement of R7F123FGG3AFB-C#BA0?
All R7F123FGG3AFB-C#BA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7F123FGG3AFB-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 R7F123FGG3AFB-C#BA0 part is unused and in its original packaging.
Return procedure for R7F123FGG3AFB-C#BA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R7F123FGG3AFB-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…
