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Renesas R5F121BAGNA#60
- Part No.:
- R5F121BAGNA#60
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 32-WFQFN Exposed Pad
- Datasheet:
-
R5F121BAGNA#60.pdf
- Description:
- 16BIT MCU RL78/G16 16K HWQFN32 -
- Quantity:
- Payment:
- Shipping:
Inventory:2,462
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Product details
Overview
R5F121BAGNA#60 from Renesas Electronics is a 32-pin, 32 KB flash, 2 KB RAM RL78/G16 16-bit microcontroller in HWQFN-32 (5 × 5 mm, 0.5-mm pitch) package, operating from 2.4–5.5 V with −40 to +105°C industrial temperature range. It integrates capacitive touch sensing (15-channel CTSU), 10-bit A/D converter (11 channels), real-time clock with calendar, and dual serial interfaces including I²C and simplified SPI/UART.
For engineers reviewing the R5F121BAGNA#60 datasheet, R5F121BAGNA#60 pinout, R5F121BAGNA#60 application, or R5F121BAGNA#60 equivalent, key selection considerations include its 32-pin HWQFN industrial-grade packaging, integrated touch sensing capability, RTC with alarm and correction, and support for background data flash writes up to 1 million cycles.
Technical Context
The R5F121BAGNA#60 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.0625 μs (@16 MHz high-speed on-chip oscillator) to 30.5 μs (@32.768 kHz subsystem clock). It features dual clock domains: high-speed on-chip oscillator (1–16 MHz, ±1.0% accuracy at TA = −20 to +85°C) and dedicated low-speed oscillator for watchdog and RTC.
Its peripheral set includes eight 16-bit timers, one 12-bit interval timer, one watchdog timer, one 99-year real-time clock (RTC2), and a 15-channel capacitive touch sensing unit (CTSU) supporting both self- and mutual-capacitance configurations. Communication is handled via up to three simplified SPI/CSI channels, three UART channels, three simplified I²C channels, and one full I²C interface.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and 1 MB address space |
| Flash Memory | 32 KB code flash (1 KB block size); supports self-programming without boot swap |
| Data Flash | 1 KB data flash (512 B block size); 32-bit rewrite unit; 1,000,000-cycle endurance |
| RAM | 2 KB on-chip RAM; accessible during STOP/HALT modes for ultra-low-power operation |
| Operating Voltage | 2.4 V to 5.5 V single supply; enables direct battery or industrial rail compatibility |
| Temperature Range | −40°C to +105°C (G-grade industrial qualification) |
| Package | HWQFN-32 (5.0 × 5.0 mm, 0.5-mm pitch) with exposed die pad for thermal management |
Pinout & Package
Package: HWQFN-32 (5.0 × 5.0 mm, 0.5-mm pitch), thermally enhanced with exposed die pad requiring PCB land connection for heat dissipation and EMI reduction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00 | TOOLTxD / SO00 / TxD0 | Primary UART transmit output; also serves as serial array output and tool interface TX |
| P01 | TOOLRxD / ANI0 / SI00 / RxD0 | Primary UART receive input with analog input (ANI0); supports debug communication and sensor interface |
| P02 | PCLBUZ0 / ANI1 / VCOUT0 / TSCAP | Capacitive touch sensing channel 0 input; also provides buzzer drive and analog input |
| P125 | RESET / INTP1 | Active-low reset input with interrupt capability; internal SPOR circuit selectable across 3 voltage thresholds |
| VDD | Power Supply | Main 2.4–5.5 V supply; powers core, peripherals, and I/O banks |
| VSS | Ground | Digital ground reference; must be connected to PCB ground plane under exposed pad |
| P41 | RTC1HZ / TS13 / TI03 / TO03 | Real-time clock 1 Hz output; also functions as touch sense input 13 and timer I/O |
| P60 | SCLA0 / INTP3 / INTP6 | I²C bus clock line for channel 0; supports dual interrupt sources for flexible event handling |
Key Features
| Feature | Design Value |
|---|---|
| Capacitive Touch Sensing Unit (CTSU) | 15-channel support for self-capacitance (15 keys) or mutual-capacitance matrix (up to 16 keys); eliminates external touch controller IC |
| Low-Power Operation Modes | HALT mode (core stopped, peripherals active) and STOP mode (core + most peripherals halted); enables sub-μA standby current |
| Integrated Real-Time Clock (RTC2) | Full 99-year calendar with alarm, periodic interrupt, and hardware clock correction; operates independently of main CPU clock |
| High-Speed On-Chip Oscillator | Factory-trimmed 1–16 MHz oscillator with ±1.0% accuracy over −20 to +85°C; eliminates external crystal for cost-sensitive designs |
| Serial Interface Flexibility | Three simplified SPI/CSI, three UART, three simplified I²C, and one full I²C - all configurable via peripheral I/O redirection registers (PIOR) |
| Industrial Temperature Qualification | G-grade rating (−40°C to +105°C) validated across full voltage and timing specifications; suitable for motor control and building automation |
Applications
| Home Appliance Control Panel | Industrial Motor Drive HMI |
|---|---|
|
Use Scenario: Touch-enabled front panel for washing machine or HVAC system with button feedback, status LEDs, and parameter adjustment. IC Role / Device Role / Timing Role: Primary MCU executing touch scan, LED PWM control, UART communication to main controller, and RTC-based scheduling. Use Value: Integrated CTSU eliminates external touch IC; 32 KB flash accommodates UI logic + firmware updates; G-grade temp ensures reliability near heat-generating motors. |
Use Scenario: Human-machine interface module for variable-frequency drives, displaying RPM, fault codes, and runtime statistics. IC Role / Device Role / Timing Role: Standalone HMI processor interfacing via UART/RS-485 to drive controller; manages display refresh, keypad scan, and nonvolatile settings storage. Use Value: Data flash endurance (1M cycles) supports frequent parameter logging; 10-bit ADC monitors panel temperature and supply rails; HWQFN-32 eases layout in space-constrained enclosures. |
| Smart Thermostat Node | Energy Meter Front-End |
|
Use Scenario: Battery-powered wireless thermostat with ambient temperature/humidity sensing, LCD display, and Zigbee/Thread radio interface. IC Role / Device Role / Timing Role: System controller managing sensor acquisition, display update, RTC wake-up, and low-power radio coexistence. Use Value: HALT/STOP modes reduce average current to enable multi-year coin-cell operation; integrated RTC maintains time during deep sleep; touch inputs replace mechanical buttons. |
Use Scenario: Front-end acquisition and display unit in DIN-rail energy meters, reading meter IC registers via SPI and showing kWh, voltage, and current on LCD. IC Role / Device Role / Timing Role: Dedicated meter interface MCU handling SPI communication with metrology IC, LCD driver, tamper detection, and secure data logging. Use Value: 11-channel 10-bit ADC measures auxiliary voltages/currents; SCLA0/SDAA0 pins provide dedicated I²C for secure element; G-grade rating withstands transformer-induced board heating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F121BCMNA#60 | M-grade variant: extended temperature range (−40°C to +125°C); identical pinout, memory, and peripherals | Required for under-hood automotive or high-ambient industrial environments exceeding +105°C | Select when ambient temperature exceeds +105°C; otherwise, R5F121BAGNA#60 offers optimal cost/performance balance for standard industrial use. |
| R5F121BCGFP#70 | LQFP-32 (7 × 7 mm, 0.8-mm pitch) package; same G-grade spec, but larger footprint and different thermal profile | Preferred where manual assembly, rework, or legacy LQFP-compatible PCBs are used | Choose for prototyping ease or compatibility with existing LQFP layouts; HWQFN-32 (R5F121BAGNA#60) saves board area and improves thermal performance in volume production. |
Compared with R5F121BCMNA#60 and R5F121BCGFP#70, the R5F121BAGNA#60 delivers the optimal blend of industrial temperature margin (−40°C to +105°C), compact HWQFN-32 packaging for space-constrained designs, and full peripheral feature set-including CTSU and RTC2-without over-specifying for extreme environments or legacy footprints.
Availability
R5F121BAGNA#60 is available at Aetrix Electronics and suitable for industrial motor drives, smart thermostats, and home appliance control panels requiring stable component supply, long-term lifecycle support, and G-grade temperature assurance.
Supply support for R5F121BAGNA#60 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, power, and SoC solutions for automotive, industrial, and IoT markets.
The RL78/G16 product line delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive, touch-enabled industrial and consumer applications-with emphasis on integrated CTSU, RTC, and flexible serial interfaces.
FAQ
What is the maximum operating frequency of the R5F121BAGNA#60?
The R5F121BAGNA#60 supports a maximum system clock of 16 MHz using its high-speed on-chip oscillator. This yields a minimum instruction execution time of 0.0625 μs. The device also supports lower-frequency operation down to 32.768 kHz for ultra-low-power RTC and standby modes, with corresponding instruction time of 30.5 μs.
Does the R5F121BAGNA#60 support in-system programming (ISP) via its debug interface?
Yes, the R5F121BAGNA#60 includes an on-chip debug function compatible with Renesas E2 emulator and standard SWD/JTAG interfaces. It supports full flash programming, erasure, and verification without requiring external programming hardware-enabling field firmware updates and production-line programming via the TOOL0/TOOLRxD/TOOLTxD pins.
How many capacitive touch channels does the R5F121BAGNA#60 support, and what configuration options are available?
The R5F121BAGNA#60 integrates a 15-channel Capacitive Touch Sensing Unit (CTSU). It supports self-capacitance mode (one key per pin, up to 15 keys) and mutual-capacitance mode (matrix configuration using selected transmit/receive pins, supporting up to 16 keys). All channels are software-configurable and operate independently of CPU load during scan.
What is the data flash endurance specification for the R5F121BAGNA#60?
The R5F121BAGNA#60 specifies 1,000,000 write/erase cycles (typical) for its 1 KB data flash memory. Each rewrite operates on 32-bit units, and the memory retains data for 20 years at +85°C. Voltage requirements for rewriting match the operating supply: VDD = 2.4 V to 5.5 V.
Is the R5F121BAGNA#60 pin-compatible with other RL78/G16 variants in the same package?
Yes, all RL78/G16 devices in the HWQFN-32 package-including R5F121BAGNA#60, R5F121BCMNA#60, and R5F121BAANA#60-are fully pin-compatible. Differences are limited to temperature grade (G vs. M vs. A), flash size (32 KB vs. 16 KB), and memory configuration; no PCB redesign is needed when upgrading within the same package family.
R5F121BAGNA#60 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 32-WFQFN Exposed Pad
- Series:
- RL78/G16
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- RL78
- Core Size:
- 16-Bit
- Speed:
- 16MHz
- Connectivity:
- CSI, I2C, SPI, UART/USART
- Peripherals:
- Capacitive Touch, POR, PWM, Voltage Detect, WDT
- Number of I/O:
- 29
- Program Memory Size:
- 16KB (16K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 1K x 8
- RAM Size:
- 2K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.4V ~ 5.5V
- Data Converters:
- A/D 11x8/10b
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F121BAGNA#60 FAQ
1.How can I place an order for R5F121BAGNA#60 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F121BAGNA#60 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 R5F121BAGNA#60 reliable?
The price and inventory of R5F121BAGNA#60 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F121BAGNA#60 is usually 5 days.
3.What payment methods are accepted for R5F121BAGNA#60?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F121BAGNA#60 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F121BAGNA#60?
R5F121BAGNA#60 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F121BAGNA#60 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 R5F121BAGNA#60?
For technical support, including R5F121BAGNA#60 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F121BAGNA#60 requirements.
6.How does Aetrix verify that R5F121BAGNA#60 is sourced from the original manufacturer or authorized distributors?
All R5F121BAGNA#60 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 R5F121BAGNA#60 meets industry standards.
7.What is the process for return or replacement of R5F121BAGNA#60?
All R5F121BAGNA#60 units undergo pre-shipment inspection (PSI). If there is an issue with R5F121BAGNA#60, 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 R5F121BAGNA#60 part is unused and in its original packaging.
Return procedure for R5F121BAGNA#60:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F121BAGNA#60 Tags
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