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Renesas R5F12048GNA#40
- Part No.:
- R5F12048GNA#40
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 16-WFQFN Exposed Pad
- Datasheet:
-
R5F12048GNA#40.pdf
- Description:
- IC MCU 16BIT 8KB FLASH 16WFQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,500
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Product details
Overview
R5F12048GNA#40 from Renesas Electronics is an 8 KB flash, 1 KB RAM RL78/G15 16-pin microcontroller with industrial-grade temperature support (−40°C to +105°C), high-speed on-chip oscillator (1–16 MHz ±1.0% @ −20°C to +85°C), and integrated 8/10-bit A/D converter (7 channels), used in embedded control systems requiring low-power operation and compact packaging.
For engineers reviewing the R5F12048GNA#40 datasheet, R5F12048GNA#40 pinout, R5F12048GNA#40 application, or R5F12048GNA#40 equivalent, this page delivers verified technical context, package mapping, functional pin roles, real-world use cases, and validated alternative options for industrial sensor nodes, motor control interfaces, and smart power management modules.
Technical Context
The R5F12048GNA#40 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and 1 MB address space. It supports HALT and STOP low-power modes, selectable power-on-reset (SPOR) with four voltage thresholds, and on-chip debug functionality for development.
It integrates a 16-bit timer array unit (TAU0) with 8 channels, one 12-bit interval timer, one watchdog timer, and two simplified I²C (IIC00/IIC01) plus two CSI (SPI-compatible) serial interfaces - all operating from a single 2.4–5.5 V supply without external regulators.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and 1 MB address space |
| Flash / RAM | 8 KB code flash (1 KB block erase), 1 KB data flash (512 B blocks), 1 KB on-chip RAM |
| Operating Voltage | 2.4 V to 5.5 V - enables direct interface with 3.3 V and 5 V logic without level shifters |
| Temperature Range | −40°C to +105°C (G-grade) - qualified for industrial ambient environments |
| A/D Converter | 8/10-bit resolution, 7 analog input channels, internal 0.815 V reference - supports multi-sensor analog acquisition |
| Timers | 8-channel 16-bit TAU0, 1-channel 12-bit interval timer, 1-channel watchdog - enables precise PWM, timing, and safety monitoring |
| Serial Interfaces | 2× simplified I²C (IIC00/IIC01), 2× CSI (SPI-compatible), 1× UART - supports dual sensor buses and host communication |
Pinout & Package
Package: 16-pin HWQFN (3 mm × 3 mm, 0.5 mm pitch) with exposed thermal pad - optimized for space-constrained industrial PCBs and thermal dissipation in sealed enclosures.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00 | TOOLTxD / SO00 / TxD0 | UART transmit output or serial data output - enables firmware update via tool interface or host MCU communication |
| P01 | TOOLRxD / ANI0 / SI00 / RxD0 / SDA00 | UART receive input with analog input and I²C data capability - supports debug, sensing, and bus slave functions on one pin |
| P02 | PCLBUZ0 / ANI1 / VCOUT0 / SCK00 / SCL00 | Buzzer clock output, analog input, comparator output, and SPI/I²C clock - consolidates timing, sensing, and interface signals |
| P03 | ANI2 / IVCMP0 / TO00 / SO00 / TxD0 | Analog input with comparator reference and timer output - enables closed-loop analog control with hardware PWM |
| P04 | ANI3 / IVREF0 / TI01 / TO01 / SI00 / RxD0 | Analog reference input and timer I/O with serial receive - supports precision ADC biasing and dual-function timing |
| P05 | ANI4 / TI02 / TO02 / SO01 | Additional analog channel with full timer I/O - extends PWM generation and sensor signal conditioning |
| P06 | ANI5 / SI01 / SDA01 / SCK00 / SCL00 | Second I²C data line with analog input and shared SPI clock - enables dual I²C peripherals without GPIO expansion |
| P07 | ANI6 / SCK01 / SCL01 / SDAA0 | Third analog input with dedicated I²C clock and addressable slave interface - supports multi-drop sensor networks |
| P40 | TOOL0 / INTP2 / TI01 / TO01 | Debug I/O and interrupt-capable timer I/O - provides in-system programming and event-triggered timing |
| P41 | TI03 / TO03 / INTP4 / VCOUT1 | Dedicated timer channel with comparator output - enables independent PWM or pulse-width measurement |
| P121 / P122 | X1 / X2 | Crystal oscillator inputs for external 1–12 MHz clock source - allows precise timing for communication or sampling |
| P125 | RESET / INTP1 / VCOUT0 | Active-low reset with interrupt and comparator output - supports system-level fault recovery and status signaling |
| P137 | INTP0 / TI00 | Primary external interrupt input with timer input - serves as wake-up trigger and timebase capture |
| VDD / VSS | Power / Ground | Single-supply operation with decoupling requirements defined per Renesas layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Low-power HALT/STOP modes | Reduces current consumption to sub-μA levels during idle - extends battery life in portable industrial sensors |
| Self-programmable flash | Enables field firmware updates without boot swap - simplifies over-the-air (OTA) maintenance in deployed equipment |
| On-chip BCD correction | Accelerates decimal arithmetic for display drivers and metering applications - eliminates software overhead |
| Peripheral I/O redirection (PIOR) | Allows dynamic remapping of serial, timer, and analog functions to alternate pins - increases board layout flexibility |
| Programmable clock/buzzer output (PCLBUZ0) | Generates up to 10 MHz clock or audible tones directly from hardware - replaces external oscillators or buzzer drivers |
Applications
| Industrial Sensor Node | Smart Power Switch Controller |
|---|---|
Use Scenario: Compact environmental monitor with temperature, humidity, and voltage sensing in factory automation cabinets. IC Role / Device Role / Timing Role: Central controller managing analog acquisition, I²C sensor polling, UART telemetry, and watchdog supervision. Use Value: Integrated 7-channel ADC, dual I²C, and 8-channel timer enable concurrent sensor reads, bus arbitration, and fault-timed shutdown without external logic. |
Use Scenario: DIN-rail mounted AC/DC power module with load switching, overcurrent detection, and status reporting. IC Role / Device Role / Timing Role: Real-time protection coordinator using analog inputs for current sensing, PWM for gate drive timing, and UART for configuration. Use Value: Hardware timer outputs deliver precise MOSFET gate timing; on-chip comparator and ADC allow fast trip response (<10 μs) without external comparators. |
| Motor Speed Interface | Embedded HVAC Actuator |
Use Scenario: Brushless DC motor tachometer and commutation assist in fan control units. IC Role / Device Role / Timing Role: Pulse capture and PWM generation unit interfacing with hall-effect sensors and driver ICs. Use Value: Dedicated TI0x/TO0x pins support simultaneous edge-triggered speed measurement and synchronized PWM output at up to 16 MHz base clock. |
Use Scenario: Thermostat-controlled damper actuator with position feedback, temperature compensation, and RS-485 communication. IC Role / Device Role / Timing Role: Closed-loop motion controller using analog position feedback, internal reference, and UART-to-RS485 bridge. Use Value: Internal 0.815 V reference ensures stable ADC readings across temperature; programmable clock output drives RS-485 transceiver timing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F12047GNA#40 | 4 KB code flash (vs. 8 KB), identical pinout, same 16-pin HWQFN package and peripheral set | Suitable for cost-sensitive designs with smaller firmware footprints and no future code expansion needs | Select when firmware size remains under 4 KB and long-term scalability is not required |
| R5F12048MNA#40 | Same 8 KB flash and peripherals, but rated for −40°C to +125°C (M-grade) and ±1.5% oscillator accuracy at +85°C to +125°C | Required for under-hood automotive or high-temperature industrial enclosures exceeding +105°C ambient | Choose only if operating ambient exceeds +105°C; otherwise, G-grade offers better oscillator stability at lower cost |
Compared with R5F12048GNA#40, R5F12047GNA#40 reduces flash capacity by half while preserving all I/O and analog resources, whereas R5F12048MNA#40 extends thermal range at the expense of oscillator accuracy above +85°C - making G-grade optimal for standard industrial control where precision timing dominates over extreme temperature tolerance.
Availability
R5F12048GNA#40 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart power switch controllers, motor speed interfaces, and embedded HVAC actuators requiring stable component supply, long-lifecycle support, and guaranteed G-grade qualification.
Supply support for R5F12048GNA#40 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 is a global semiconductor leader specializing in microcontrollers, analog, and power solutions for industrial, automotive, and IoT markets.
The RL78/G15 product line delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive, space-constrained industrial control applications - balancing performance, integration, and energy efficiency in compact packages.
FAQ
What is the maximum operating frequency and oscillator accuracy of the R5F12048GNA#40?
The R5F12048GNA#40 supports a high-speed on-chip oscillator up to 16 MHz with ±1.0% accuracy over −20°C to +85°C (G-grade specification). It also accepts external crystal inputs (X1/X2) from 1 to 12 MHz or external clock (EXCLK) up to 16 MHz, enabling precise timing for communication protocols or sampling clocks.
Does the R5F12048GNA#40 support in-system programming and field firmware updates?
Yes, the R5F12048GNA#40 supports self-programming of both code and data flash memory without boot swap functionality. Firmware updates can be performed via the on-chip debug interface or UART-based bootloader, provided the application reserves space for safe erase/write sequences and handles interrupt masking during flash operations.
How many analog input channels does the R5F12048GNA#40 provide, and what reference options are available?
The R5F12048GNA#40 features 7 analog input channels (ANI0–ANI6) with 8/10-bit resolution. It supports internal reference voltage (0.815 V typical) and external reference inputs (IVREF0/IVREF1), allowing flexible ADC configurations for ratiometric or absolute measurements across varying supply conditions.
What serial communication interfaces are integrated into the R5F12048GNA#40?
The R5F12048GNA#40 integrates two simplified I²C interfaces (IIC00 and IIC01), two CSI modules (SPI-compatible), and one UART channel (UART0). These support concurrent communication with multiple sensors, displays, or host controllers - with hardware-level arbitration and clock stretching handled internally.
Is the R5F12048GNA#40 pin-compatible with other RL78/G15 variants in the same package?
Yes, the R5F12048GNA#40 is fully pin-compatible with all 16-pin HWQFN RL78/G15 devices including R5F12047GNA#40 and R5F12048MNA#40. Pin functions, electrical characteristics, and peripheral mappings remain identical - enabling drop-in replacement for flash size or temperature grade changes without PCB revision.
R5F12048GNA#40 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 16-WFQFN Exposed Pad
- Series:
- RL78/G15
- Packaging:
- Tape & Reel (TR)
- 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 SAR
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F12048GNA#40 FAQ
1.How can I place an order for R5F12048GNA#40 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F12048GNA#40 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#40 reliable?
The price and inventory of R5F12048GNA#40 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F12048GNA#40 is usually 5 days.
3.What payment methods are accepted for R5F12048GNA#40?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F12048GNA#40 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F12048GNA#40?
R5F12048GNA#40 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F12048GNA#40 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#40?
For technical support, including R5F12048GNA#40 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F12048GNA#40 requirements.
6.How does Aetrix verify that R5F12048GNA#40 is sourced from the original manufacturer or authorized distributors?
All R5F12048GNA#40 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#40 meets industry standards.
7.What is the process for return or replacement of R5F12048GNA#40?
All R5F12048GNA#40 units undergo pre-shipment inspection (PSI). If there is an issue with R5F12048GNA#40, 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#40 part is unused and in its original packaging.
Return procedure for R5F12048GNA#40:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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