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Renesas R5F1214CGNA#40
- Part No.:
- R5F1214CGNA#40
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 16-WFQFN Exposed Pad
- Datasheet:
-
R5F1214CGNA#40.pdf
- Description:
- 16BIT MCU RL78/G16 32K 16HWQFN -
- Quantity:
- Payment:
- Shipping:
Inventory:1,288
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Product details
Overview
R5F1214CGNA#40 from Renesas Electronics is a 16-pin HWQFN-packaged RL78/G16 16-bit microcontroller with 32 KB code flash, 2 KB RAM, and industrial-grade −40°C to +105°C operation. It integrates capacitive touch sensing (15-channel CTSU), 10-bit A/D converter (11-channel), real-time clock with calendar, and low-power STOP/HALT modes for battery-powered HMI and sensor control applications.
For engineers reviewing the R5F1214CGNA#40 datasheet, R5F1214CGNA#40 pinout, R5F1214CGNA#40 application, or R5F1214CGNA#40 equivalent, key selection criteria include its 16-pin HWQFN (3 × 3 mm, 0.5-mm pitch) footprint, G-grade temperature rating, integrated CTSU for touch buttons, and dual serial interfaces (UART + simplified I²C) supporting compact industrial control nodes.
Technical Context
The R5F1214CGNA#40 implements the RL78 CPU core with a 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). Its memory subsystem includes 32 KB code flash (1 KB block erase), 1 KB data flash (512 B blocks, 1M rewrite cycles), and 2 KB SRAM.
Peripheral integration includes eight 16-bit timers, one 12-bit interval timer, watchdog timer, RTC2 with 99-year calendar and alarm, four serial interfaces (up to three simplified SPI/UART/I²C channels plus one full I²C), and a 15-channel capacitive touch sensing unit supporting both self- and mutual-capacitance configurations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline |
| Flash Memory | 32 KB code flash; 1 KB erase blocks enable fine-grained firmware updates |
| Data Flash | 1 KB with 512 B blocks; supports 1,000,000 rewrites at VDD = 2.4–5.5 V |
| RAM | 2 KB on-chip SRAM for real-time data buffering and stack operations |
| Operating Voltage | 2.4 V to 5.5 V single supply; enables direct battery (3.0 V Li-ion or 4.5 V AA pack) operation |
| Temperature Range | −40°C to +105°C (G-grade); qualified for industrial motor drives and HVAC controls |
| Package | 16-pin HWQFN, 3 × 3 mm, 0.5-mm pitch; exposes die pad for thermal management |
Pinout & Package
16-pin HWQFN (3 × 3 mm, 0.5-mm pitch) with exposed die pad requiring PCB thermal pad connection. Pin 1 marked by index dot; die pad must be soldered to non-electrical copper area for thermal dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P125 | RESET/INTP1 | Active-low reset input with selectable SPOR threshold; also serves as external interrupt 1 |
| P137 | INTP0/TI00 | External interrupt 0 input and Timer array channel 0 input capture/output compare |
| P122 | X2/XT2/EXCLK | Crystal oscillator input (for 1–20 MHz crystals) or external clock input |
| P121 | X1/XT1 | Crystal oscillator output or external clock feedback; forms resonant circuit with P122 |
| VSS | Ground | Digital ground reference; connects to PCB ground plane under exposed die pad |
| VDD | Power Supply | 2.4–5.5 V main supply; decoupling capacitor required within 1 cm |
| P00 | TOOLTxD/INTP6/SO00/TxD0 | UART0 transmit output and serial array channel 0 output; also tool interface TX |
| P01 | TOOLRxD/ANI0/INTP5/TS00 | UART0 receive input, analog input 0, interrupt 5, and touch sense channel 0 |
| P02 | PCLBUZ0/ANI1/VCOUT0/INTP7/TSCAP/TI01/TO01 | Programmable clock/buzzer output, analog input 1, voltage comparator output, interrupt 7, touch sense CAP, timer 1 I/O |
| P03 | ANI2/IVCMP0/INTP4/TS03/TO00 | Analog input 2, internal voltage comparator 0 input, interrupt 4, touch sense 3, timer 0 output |
| P04 | ANI3/IVREF0/INTP3/TS04/TI06/TO06/TxD1 | Analog input 3, internal reference 0, interrupt 3, touch sense 4, timer 6 I/O, UART1 TX |
| P05 | ANI4/IVCMP1/TS05/SO11/INTP6 | Analog input 4, internal comparator 1 input, touch sense 5, serial array 1 output, interrupt 6 |
| P06 | ANI5/IVREF1/TS06/SI11/SCLA0 | Analog input 5, internal reference 1, touch sense 6, serial array 1 input, I²C0 slave address |
| P07 | ANI6/VCOUT1/TS07/TI04/TO04/SDAA0 | Analog input 6, comparator output 1, touch sense 7, timer 4 I/O, I²C0 data |
| P40 | TOOL0/INTP2/(PCLBUZ0) | On-chip debug tool interface pin and external interrupt 2; configurable as buzzer output |
| P41 | RTC1HZ/TS13/TI03/TO03 | Real-time clock 1 Hz output, touch sense 13, timer 3 I/O for precise timing or PWM generation |
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) without external components |
| Low-Power Operation Modes | HALT mode (core stopped, peripherals active) and STOP mode (all clocks halted) reduce current to μA range for battery longevity |
| Integrated Real-Time Clock (RTC2) | 99-year calendar with alarm, clock correction, and independent 32.768 kHz oscillator for timekeeping during STOP mode |
| High-Speed On-Chip Oscillator | Selectable 1–16 MHz frequencies with ±1.0% accuracy (−20°C to +85°C), eliminating need for external crystal in cost-sensitive designs |
| Serial Interface Flexibility | Up to three simplified SPI/UART/I²C channels plus one full I²C interface, enabling simultaneous sensor communication and host connectivity |
| Self-Programming Flash | Code flash reprogramming in-application without boot swap; supports field firmware updates via UART or CAN (with external transceiver) |
Applications
| Industrial HMI Panels | Smart Thermostats |
|---|---|
Use Scenario: Compact wall-mounted control panel with capacitive touch buttons and LED indicators. IC Role / Device Role / Timing Role: Main controller executing touch decoding, temperature regulation logic, and display refresh via SPI. Use Value: Integrated CTSU eliminates external touch IC; 32 KB flash accommodates UI graphics and control algorithms; G-grade temp rating ensures reliability in HVAC environments. | Use Scenario: Battery-powered residential thermostat with ambient temperature sensing and Wi-Fi module interface. IC Role / Device Role / Timing Role: System manager handling sensor acquisition (A/D), RTC-based scheduling, and low-power wake-up from STOP mode. Use Value: 2.4–5.5 V operation supports 3.0 V coin cell or 4.5 V alkaline; STOP mode current < 0.5 μA extends battery life to >2 years. |
| Motor Control Interfaces | Industrial Sensor Nodes |
Use Scenario: Brushless DC motor driver board with hall-effect feedback and status LEDs. IC Role / Device Role / Timing Role: Peripheral coordinator managing PWM generation (via timer array), fault monitoring (INTP inputs), and serial diagnostics. Use Value: Eight 16-bit timers support multi-phase PWM with dead-time insertion; 10-bit A/D reads current/voltage sensors directly. | Use Scenario: DIN-rail mounted environmental monitor collecting temperature, humidity, and vibration data. IC Role / Device Role / Timing Role: Data aggregator with A/D conversion, RTC timestamping, and UART-to-RS485 translation. Use Value: Dual UART channels allow isolated host communication and sensor interface; 1 KB data flash stores calibration coefficients and event logs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F1214AGNA#40 | Same package and pinout; A-grade (−40°C to +85°C) instead of G-grade | Suitable for consumer-grade appliances but not industrial enclosures above 85°C ambient | Select when cost sensitivity outweighs extended temperature requirement |
| R5F1214CMNA#40 | Same package and pinout; M-grade (−40°C to +125°C) with higher thermal margin | Required for under-hood automotive or high-temp industrial motor drives | Select when operating ambient exceeds +105°C or automotive qualification is needed |
Compared with R5F1214AGNA#40 and R5F1214CMNA#40, the R5F1214CGNA#40 provides optimal thermal robustness for industrial control without over-specifying for automotive use, balancing cost, qualification scope, and long-term reliability at +105°C.
Availability
R5F1214CGNA#40 is available at Aetrix Electronics and suitable for industrial HMI panels, smart thermostats, motor control interfaces, and industrial sensor nodes requiring stable component supply across extended temperature ranges.
Supply support for R5F1214CGNA#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, power, and SoC solutions for industrial, automotive, and IoT markets.
The RL78/G16 product line delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive, space-constrained industrial and consumer HMI applications with integrated touch sensing and robust peripheral sets.
FAQ
What is the maximum operating frequency of the R5F1214CGNA#40?
The R5F1214CGNA#40 supports a maximum CPU operating frequency of 16 MHz using the 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 functions, with corresponding instruction time of 30.5 μs.
Does the R5F1214CGNA#40 support in-system programming via its serial interfaces?
Yes, the R5F1214CGNA#40 supports in-system programming using its UART or simplified SPI interfaces through the on-chip debug function. Firmware updates can be performed without removing the device from the PCB, provided the bootloader is implemented per Renesas Application Note R01AN3813EJ0100. The R5F1214CGNA#40 does not include boot swap functionality.
How many capacitive touch channels does the R5F1214CGNA#40 support, and what configuration options are available?
The R5F1214CGNA#40 integrates a 15-channel Capacitive Touch Sensing Unit (CTSU). It supports self-capacitance mode (one pin per key, up to 15 keys) and mutual-capacitance mode (matrix configuration using transmit/receive pin pairs selected from the same 15 pins, supporting up to 16 keys). No external RC components are required for either mode.
What is the data retention specification for the data flash memory in the R5F1214CGNA#40?
The data flash memory in the R5F1214CGNA#40 is rated for 1,000,000 write/erase cycles (typical) at VDD = 2.4–5.5 V. Data retention is guaranteed for 20 years at Ta = 85°C and 100 years at Ta = 25°C per Renesas specification R01DS0431EJ0130. Background operation (BGO) is not supported - code execution halts during data flash writes.
Can the R5F1214CGNA#40 operate from a single 3.0 V lithium coin cell battery?
Yes, the R5F1214CGNA#40 operates over a supply range of 2.4 V to 5.5 V, making it compatible with standard 3.0 V lithium coin cells (e.g., CR2032). In STOP mode, typical current consumption is less than 0.5 μA, enabling multi-year battery life. The high-speed on-chip oscillator remains functional down to 2.4 V, ensuring reliable startup and operation across the full battery discharge curve.
R5F1214CGNA#40 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 16-WFQFN Exposed Pad
- Series:
- RL78/G16
- Packaging:
- Tape & Reel (TR)
- 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:
- 13
- Program Memory Size:
- 32KB (32K 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 7x8/10b
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F1214CGNA#40 FAQ
1.How can I place an order for R5F1214CGNA#40 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F1214CGNA#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 R5F1214CGNA#40 reliable?
The price and inventory of R5F1214CGNA#40 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F1214CGNA#40 is usually 5 days.
3.What payment methods are accepted for R5F1214CGNA#40?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F1214CGNA#40 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F1214CGNA#40?
R5F1214CGNA#40 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F1214CGNA#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 R5F1214CGNA#40?
For technical support, including R5F1214CGNA#40 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F1214CGNA#40 requirements.
6.How does Aetrix verify that R5F1214CGNA#40 is sourced from the original manufacturer or authorized distributors?
All R5F1214CGNA#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 R5F1214CGNA#40 meets industry standards.
7.What is the process for return or replacement of R5F1214CGNA#40?
All R5F1214CGNA#40 units undergo pre-shipment inspection (PSI). If there is an issue with R5F1214CGNA#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 R5F1214CGNA#40 part is unused and in its original packaging.
Return procedure for R5F1214CGNA#40:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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