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Renesas R5F12048GNA#00
- Part No.:
- R5F12048GNA#00
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 16-WFQFN Exposed Pad
- Datasheet:
-
R5F12048GNA#00.pdf
- Description:
- 16BIT MCU RL78/G15 8K 16HWQFN -4
- Quantity:
- Payment:
- Shipping:
Inventory:2,890
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Product details
Overview
R5F12048GNA#00 from Renesas Electronics is an RL78/G15 16-pin industrial-grade 8 KB flash MCU with 1 KB RAM, 7-channel 8/10-bit ADC, dual simplified I²C and SPI interfaces, and 8-channel 16-bit timer array - designed for embedded control in HVAC sensors, motor drive feedback modules, and industrial power supplies operating from −40°C to +105°C.
For engineers reviewing the R5F12048GNA#00 datasheet, R5F12048GNA#00 pinout, R5F12048GNA#00 application, or R5F12048GNA#00 equivalent, this page delivers verified package mapping (HWQFN-16, 3 × 3 mm, 0.5-mm pitch), confirmed low-power operation (54 µA/MHz at 125°C), HALT/STOP mode support, on-chip debug, and precise oscillator accuracy (±1.0% @ −20 to +85°C) critical for timing-sensitive control loops.
Technical Context
The R5F12048GNA#00 implements the RL78 CPU core with a 3-stage CISC pipeline, 1 MB address space, and configurable instruction execution time (0.0625 µs at 16 MHz). It integrates a high-speed on-chip oscillator (1–16 MHz selectable), low-speed 15 kHz oscillator, and supports external crystal (X1/X2, 1–12 MHz) or EXCLK input (1–16 MHz).
Its peripheral set includes two SAU channels supporting CSI (SPI-like), simplified I²C, and UART; one IICA channel; up to 7 analog inputs with internal 0.815 V reference; two comparators; and programmable clock/buzzer output (PCLBUZ0). All I/O pins support N-ch open-drain with pull-up and external interrupt capability (INTP0–INTP7).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 3-stage CISC pipeline, 1 MB address space, 8-bit register banks × 4 |
| Flash / RAM / Data Flash | 8 KB code flash (1 KB block), 1 KB SRAM, 1 KB data flash (512 B block, 1M rewrites) |
| Operating Voltage / Temp | 2.4–5.5 V supply; −40°C to +105°C industrial grade (G suffix) |
| Oscillator Accuracy | ±1.0% @ −20 to +85°C (high-speed on-chip); ±15% @ low-speed 15 kHz |
| Analog Peripherals | 7-channel 8/10-bit ADC (VDD-referenced), 2-channel comparator, internal 0.815 V ref |
| Timer & Communication | 8-channel 16-bit TAU, 12-bit interval timer, 1 WDT; 2× CSI, 2× simplified I²C, 1× UART, 1× IICA |
| Package / Pin Count | HWQFN-16 (3 × 3 mm, 0.5-mm pitch), 14 CMOS I/O + RESET + VDD/VSS |
Pinout & Package
Package: HWQFN-16 (3 × 3 mm body, 0.5-mm pitch, exposed thermal pad soldered to PCB ground plane per datasheet Remark 3).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00 | Port 0 bit 0 / UART TX / Serial clock | Primary serial interface output; supports SO00/TxD0 and SCK01/SCL01 multiplexing |
| P01 | Port 0 bit 1 / UART RX / ADC0 / Serial data | Full-duplex UART I/O with SI00/RxD0/SDA00 and SDAA0 options; ANI0 input |
| P02 | Port 0 bit 2 / Buzzer clock / ADC1 / Comparator | PCLBUZ0 output enables hardware-driven buzzer tone generation; VCOUT0 and IVCMP0 supported |
| P03 | Port 0 bit 3 / ADC2 / Comparator / Timer output | TO00 PWM output with INTP4 interrupt; IVREF0/IVCMP0 for analog threshold detection |
| P04 | Port 0 bit 4 / ADC3 / Reference / Timer I/O | TI01/TO01 timer channel with ANI3 input and IVREF0 reference voltage source |
| P05 | Port 0 bit 5 / ADC4 / Timer I/O / Serial clock | SO01 output and TI02/TO02 timer channel; supports SCK00/SCL00 and SI00/RxD0 multiplexing |
| P06 | Port 0 bit 6 / ADC5 / Serial data / Buzzer | SI01/SDA01 input with PCLBUZ0 alternate function; SCLA0 for I²C slave addressing |
| P07 | Port 0 bit 7 / ADC6 / Serial clock / Timer output | SCK01/SCL01 master clock; TO03 output for extended timer control; SDAA0 for IICA arbitration |
| P40 | Port 4 bit 0 / Debug / Timer I/O | TOOL0 debug interface; TI01/TO01 timer channel; INTP2 interrupt source |
| P41 | Port 4 bit 1 / Comparator / Timer I/O | VCOUT1 output for second comparator; TI03/TO03 timer channel; INTP4 interrupt |
| P121 | Crystal input / Timer I/O | X1 main oscillator input; TI07/TO07 timer channel; INTP3 interrupt |
| P122 | Crystal output / External clock / Timer I/O | X2 oscillator output or EXCLK input; TI05/TO05 timer channel; INTP2 interrupt |
| P125 | Reset / Interrupt | Active-low RESET̅ with SPOR selection; INTP1 interrupt source; VCOUT0/VCOUT1 alternate |
| P137 | Port 13 bit 7 / Timer input | INTP0 interrupt source; TI00 timer input; no analog or serial functions |
| VDD | Power supply | 2.4–5.5 V main supply; powers all digital and analog blocks including ADC and comparators |
| VSS | Ground | Reference for all I/O, analog, and internal circuits; must connect to PCB ground plane under exposed pad |
Key Features
| Feature | Design Value |
|---|---|
| True low-power platform | 54 µA/MHz active current at 125°C enables battery-backed or energy-harvested industrial nodes |
| On-chip debug with no boot swap | Enables real-time firmware update and trace without external debugger; flash shield window prevents unauthorized access |
| Selectable power-on-reset (SPOR) | Four reset voltage thresholds (2.25/2.68/3.02/4.45 V) allow robust brown-out detection across supply rails |
| Background data flash writes | Not supported - requires code flash execution suspension during data flash rewrite (BGO disabled) |
| Programmable clock/buzzer output | PCLBUZ0 generates precise square-wave tones up to 10 MHz without CPU intervention |
| Peripheral I/O redirection | PIOR registers enable dynamic remapping of serial, timer, and interrupt functions to optimize PCB layout |
Applications
| Motor Control Feedback | HVAC Sensor Node |
|---|---|
Use Scenario: Closed-loop BLDC motor controller monitoring phase current, temperature, and rotor position via analog and digital inputs. IC Role / Device Role / Timing Role: Central MCU executing FOC algorithms, sampling ADC (ANI0–ANI6), generating PWM via TAU0, and communicating status over simplified I²C. Use Value: 7-channel ADC with internal reference enables simultaneous multi-sensor acquisition; 8-channel 16-bit timer provides precise PWM dead-time and commutation timing. | Use Scenario: Wireless thermostat node measuring ambient temperature, humidity, and air quality with local display and relay control. IC Role / Device Role / Timing Role: System controller managing sensor polling (ADC + comparator), buzzer alerts (PCLBUZ0), and I²C communication with display driver and environmental ICs. Use Value: Dual simplified I²C interfaces allow concurrent connection to display and sensor ICs; HALT mode reduces average current to <1 µA for battery longevity. |
| Industrial Power Supply Monitor | Smart Lighting Dimmer |
Use Scenario: AC-DC PSU supervisory module monitoring output voltage/current, thermal shutdown, and fault reporting over RS-485. IC Role / Device Role / Timing Role: Fault-monitoring MCU sampling analog outputs (ANI0–ANI3), detecting overvoltage via comparator (IVCMP0), and driving UART-based isolation barrier. Use Value: ±1.0% oscillator accuracy ensures reliable UART baud rate generation at 9600 bps across −40°C to +105°C; 1 KB data flash stores calibration coefficients. | Use Scenario: DALI-compliant LED driver with dimming curve adjustment, thermal foldback, and local touch interface. IC Role / Device Role / Timing Role: Dimming engine reading potentiometer (ANI2), controlling PWM output (TO00), and handling DALI physical layer via UART and opto-isolated transceiver. Use Value: 16-bit timer resolution enables 0.1% dimming granularity; 14 GPIOs support direct button/touch sensing and relay control without external logic. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F12047GNA#00 | 4 KB code flash (vs. 8 KB), identical package, peripherals, and temp grade | Lower memory footprint suits simpler control tasks with minimal firmware or bootloader overhead | Select when application fits within 4 KB flash and requires identical I/O count and industrial temp range |
| R5F12048GSP#00 | SSOP-16 package (4.4 × 5.0 mm, 0.65-mm pitch) vs. HWQFN-16; same flash/RAM/peripherals | Through-hole or larger-pitch layout compatibility; lower thermal performance than QFN | Choose for legacy board designs requiring SSOP footprint or where thermal dissipation is less critical than size |
Compared with R5F12047GNA#00 and R5F12048GSP#00, the R5F12048GNA#00 uniquely balances high-density QFN packaging, full 8 KB flash for complex control algorithms, and guaranteed ±1.0% oscillator stability across industrial temperature extremes - making it optimal for space-constrained, thermally demanding embedded systems.
Availability
R5F12048GNA#00 is available at Aetrix Electronics and suitable for industrial motor control, HVAC sensor nodes, and power supply supervision requiring stable component supply, long-term lifecycle support, and guaranteed −40°C to +105°C operation.
Supply support for R5F12048GNA#00 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 delivering microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.
The RL78/G15 product line targets cost-sensitive, ultra-low-power embedded control applications - emphasizing rapid development, integrated analog peripherals, and robust operation in harsh industrial environments.
FAQ
What is the maximum operating frequency and instruction execution time of the R5F12048GNA#00?
The R5F12048GNA#00 supports a maximum high-speed on-chip oscillator frequency of 16 MHz, yielding a minimum instruction execution time of 0.0625 µs. This timing is achievable when using the high-speed oscillator at 16 MHz with the RL78 CPU's 3-stage pipeline. The device also allows dynamic switching to lower frequencies (1–8 MHz) for reduced power consumption without changing hardware configuration.
Does the R5F12048GNA#00 support background data flash programming while executing code from flash memory?
No, the R5F12048GNA#00 does not support background operation (BGO) for data flash programming. During data flash rewrite operations, instruction execution from code flash memory is suspended. This behavior is explicitly documented in the datasheet: "Background operation (BGO) is not supported (instructions cannot be executed from the code flash memory while rewriting the data flash memory)."
What are the analog input capabilities of the R5F12048GNA#00, and how is the reference voltage configured?
The R5F12048GNA#00 features a 7-channel 8/10-bit A/D converter with inputs ANI0–ANI6. It supports internal reference voltage (0.815 V TYP.) and external reference via IVREF0/IVREF1 pins. For the R5F12048GNA#00 (16-pin HWQFN), only IVREF0 is available; IVREF1 is present only on 20-pin variants. The ADC operates across the full VDD range (2.4–5.5 V) with no separate analog supply required.
How many serial communication interfaces does the R5F12048GNA#00 include, and what protocols do they support?
The R5F12048GNA#00 includes three distinct serial interface resources: two SAU channels supporting simplified SPI (CSI), simplified I²C, and UART modes; and one dedicated IICA channel for standard I²C bus operation. Specifically, it supports 2× CSI (SPI-like), 2× simplified I²C, 1× UART, and 1× full I²C - enabling concurrent communication with multiple sensors, displays, and peripherals without protocol conflict.
What is the thermal pad requirement for the HWQFN-16 package of the R5F12048GNA#00?
The HWQFN-16 package of the R5F12048GNA#00 includes an exposed die pad that must be soldered to a plated PCB area with no electrical connections, as specified in datasheet Remark 3. This pad serves as the primary thermal path and must be connected to the system ground plane for optimal thermal performance and EMI suppression. Failure to properly land and solder this pad may result in exceeding junction temperature limits under sustained load.
R5F12048GNA#00 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 16-WFQFN Exposed Pad
- Series:
- RL78/G15
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- RL78
- Core Size:
- 16-Bit
- Speed:
- 16MHz
- Connectivity:
- CSI, I2C, SPI, UART/USART
- Peripherals:
- POR, PWM, WDT
- Number of I/O:
- 13
- Program Memory Size:
- 8KB (8K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 1K x 8
- RAM Size:
- 1K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.4V ~ 5.5V
- Data Converters:
- A/D 7x8/10b
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F12048GNA#00 FAQ
1.How can I place an order for R5F12048GNA#00 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F12048GNA#00 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 R5F12048GNA#00 reliable?
The price and inventory of R5F12048GNA#00 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F12048GNA#00 is usually 5 days.
3.What payment methods are accepted for R5F12048GNA#00?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F12048GNA#00 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F12048GNA#00?
R5F12048GNA#00 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F12048GNA#00 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 R5F12048GNA#00?
For technical support, including R5F12048GNA#00 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F12048GNA#00 requirements.
6.How does Aetrix verify that R5F12048GNA#00 is sourced from the original manufacturer or authorized distributors?
All R5F12048GNA#00 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 R5F12048GNA#00 meets industry standards.
7.What is the process for return or replacement of R5F12048GNA#00?
All R5F12048GNA#00 units undergo pre-shipment inspection (PSI). If there is an issue with R5F12048GNA#00, 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 R5F12048GNA#00 part is unused and in its original packaging.
Return procedure for R5F12048GNA#00:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F12048GNA#00 Tags
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