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Renesas R5F1214AGNA#20
- Part No.:
- R5F1214AGNA#20
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 16-WFQFN Exposed Pad
- Datasheet:
-
R5F1214AGNA#20.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 16WFQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,960
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Product details
Overview
R5F1214AGNA#20 from Renesas Electronics is a 16-pin HWQFN-packaged RL78/G16 16-bit microcontroller with 16 KB code flash, 2 KB RAM, and integrated capacitive touch sensing (15-channel CTSU), designed for industrial control panels and low-power HMI applications operating from −40°C to +105°C.
For engineers reviewing the R5F1214AGNA#20 datasheet, R5F1214AGNA#20 pinout, R5F1214AGNA#20 application, or R5F1214AGNA#20 equivalent, this page delivers verified technical context, real-world design meaning for key specs, validated pin functions, and two confirmed alternative parts for industrial-grade embedded systems requiring touch interface, RTC, and dual SPI/I²C support.
Technical Context
The R5F1214AGNA#20 implements the RL78 CPU core with a 3-stage pipeline, supporting instruction execution times from 0.0625 μs (16 MHz high-speed mode) to 30.5 μs (32.768 kHz ultra-low-speed mode). It integrates a 12-bit interval timer, watchdog timer, and 99-year real-time clock with alarm and correction functions.
Its analog subsystem includes an 8/10-bit A/D converter with up to 11 channels, internal reference voltage (0.815 V), temperature sensor, and dual comparators. Communication interfaces comprise up to three simplified SPI (CSI), three UART, three simplified I²C, and one full I²C channel - all configurable via peripheral I/O redirection registers (PIOR).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RL78 16-bit CISC with 3-stage pipeline; enables deterministic real-time control at ≤16 MHz with sub-μs interrupt latency. |
| Flash / RAM | 16 KB code flash (1 KB block size) + 1 KB data flash + 2 KB SRAM; supports in-application programming without boot swap. |
| Operating Voltage | 2.4–5.5 V single supply; allows direct integration with 3.3 V or 5 V industrial bus systems without level-shifting. |
| Temperature Range | −40°C to +105°C (G-grade); qualified for industrial motor drives, HVAC controllers, and factory automation nodes. |
| Capacitive Touch | 15-channel CTSU supporting self- and mutual-capacitance modes; enables robust button/slider implementation with noise immunity. |
| Timers & RTC | Eight 16-bit timers, one 12-bit interval timer, one watchdog, and one calendar RTC with alarm/correction; eliminates need for external timing ICs. |
| A/D Converter | 8/10-bit resolution, 4–11 input channels, internal 0.815 V reference; supports direct sensor monitoring (e.g., thermistors, potentiometers). |
Pinout & Package
16-pin HWQFN package (3 × 3 mm, 0.5-mm pitch) with exposed die pad requiring thermal anchoring to a non-electrical PCB copper area per Renesas specification PWQN0016KD-A.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P125 | RESET/INTP1/VCOUT0/VCOUT1/INTP0 | Active-low reset input with glitch filtering; dual VCOUT outputs support external voltage monitoring or charge-pump biasing. |
| P137 | INTP0/TI00 | Dedicated external interrupt input and Timer Array Unit channel 0 input; enables zero-latency wake-up from STOP mode. |
| P122 | X2/XT2/EXCLK/EXCLKS/TI05/TO05/INTP2 | Crystal oscillator input (X2) or external clock source (EXCLK); TI05/TO05 supports PWM generation or capture on external events. |
| P121 | X1/XT1/TI07/TO07/INTP3/INTP4/INTP5 | Primary crystal oscillator input (X1); TI07/TO07 provides additional PWM/timing capability; triple interrupt inputs enable multi-sensor event handling. |
| VSS / VDD | Ground / Power Supply | Dual power pins ensure stable core and I/O rail separation; VDD tolerance (2.4–5.5 V) simplifies power architecture across 3.3 V/5 V designs. |
| P00 | TOOLTxD/INTP6/SO00/TxD0/RTC1HZ/SCK11/SCL11/SCLA0 | UART transmit, SPI master output, I²C clock/data, and 1 Hz RTC output - multiplexed for flexible debug and communication routing. |
| P01 | TOOLRxD/ANI0/INTP5/TS00/TI02/TO02/SI00/RxD0/SDA00/SDAA0 | Analog input (ANI0), touch sense (TS00), UART receive, SPI/I²C data, and timer I/O - consolidates sensor, comms, and timing on one pin. |
| P02 | PCLBUZ0/ANI1/VCOUT0/INTP7/TSCAP/TI01/TO01/SCK00/SCL00/SO11 | Capacitive touch input (TSCAP), analog input (ANI1), buzzer driver (PCLBUZ0), and SPI/I²C clock - enables compact HMI with audio feedback. |
Key Features
| Feature | Design Value |
|---|---|
| Low-Power HALT/STOP Modes | Reduces active current to 61 µA/MHz at 125°C; extends battery life in portable industrial tools and remote sensors. |
| On-Chip Debug (OCD) | Enables full-cycle debugging without external JTAG emulator; supports flash programming and real-time variable inspection via TOOL0/TOOLRxD/TOOLTxD. |
| Self-Programming Flash | Allows firmware updates in-field without boot loader partitioning; no flash shield window required for secure reprogramming. |
| Capacitive Touch Sensing Unit (CTSU) | 15-channel hardware-accelerated touch engine with built-in noise rejection; eliminates need for external touch controller ICs in control panels. |
| Real-Time Clock (RTC2) | 99-year calendar with alarm, periodic interrupt, and ±1 ppm correction; maintains accurate timekeeping during deep sleep without external crystal. |
Applications
| Industrial Control Panel | Smart Appliance Interface |
|---|---|
|
Use Scenario: Front-panel HMI for PLC-based machinery with push buttons, sliders, and status LEDs. IC Role / Device Role / Timing Role: Main system controller executing UI logic, reading capacitive touch inputs, driving buzzer/audio feedback, and managing serial comms to PLC backplane. Use Value: Integrated CTSU and 15-channel touch support eliminate external touch ICs; RTC2 ensures accurate timestamping of operator actions and alarms. |
Use Scenario: User interface for commercial refrigeration units with temperature setpoint adjustment and door-open alerts. IC Role / Device Role / Timing Role: Dedicated HMI MCU handling touch sensing, local display update, buzzer alerts, and RS-485 communication to main controller. Use Value: −40°C to +105°C operation guarantees reliability in cold-room environments; 16 KB flash accommodates localized UI firmware with localization assets. |
| Energy Meter Front-End | Factory Automation Sensor Node |
|
Use Scenario: Tamper-resistant meter faceplate with LCD, keypad, and infrared communication for utility data readout. IC Role / Device Role / Timing Role: Secure front-end processor managing IR transceiver, capacitive keys, real-time billing timestamping, and tamper-detection interrupts. Use Value: On-chip RTC2 with correction function maintains billing accuracy over years; 2.4–5.5 V operation supports direct connection to meter's 3.3 V supply rail. |
Use Scenario: Distributed I/O module monitoring machine vibration, temperature, and status switches in CNC equipment. IC Role / Device Role / Timing Role: Edge node MCU acquiring analog sensor data (via 10-bit ADC), detecting threshold breaches, and reporting via UART to central controller. Use Value: Eight 16-bit timers enable precise pulse-width measurement of encoder signals; STOP mode reduces idle power to <1 µA for battery-backed operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F1214CGNA#20 | Same package and pinout; 32 KB code flash instead of 16 KB; identical peripherals and temperature grade (−40°C to +105°C). | Required when firmware exceeds 16 KB or future-proofing for feature expansion is needed. | Select R5F1214CGNA#20 if code size growth is anticipated; no PCB changes required due to pin-to-pin compatibility. |
| R5F1214AMNA#20 | Same 16 KB flash and 2 KB RAM; rated for −40°C to +125°C (M-grade); otherwise identical electrical and functional specifications. | Suitable for under-hood automotive or high-temperature industrial enclosures exceeding +105°C ambient. | Choose R5F1214AMNA#20 only when extended temperature qualification is mandatory; same layout and firmware binary. |
Compared with R5F1214AGNA#20, R5F1214CGNA#20 offers double flash capacity for complex UI or protocol stacks, while R5F1214AMNA#20 extends thermal resilience to +125°C - both retain identical pinout, peripheral set, and software compatibility, enabling seamless migration within the RL78/G16 family.
Availability
R5F1214AGNA#20 is available at Aetrix Electronics and suitable for industrial control panels, smart appliance HMIs, and energy meter front-ends requiring stable component supply across long production lifecycles.
Supply support for R5F1214AGNA#20 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/G16 product line targets cost-sensitive, low-power industrial and consumer HMI applications, integrating capacitive touch, RTC, and multiple serial interfaces into compact QFN and SSOP packages.
FAQ
What is the maximum operating frequency and corresponding instruction cycle time for the R5F1214AGNA#20?
The R5F1214AGNA#20 supports up to 16 MHz operation using its high-speed on-chip oscillator, delivering a minimum instruction execution time of 0.0625 μs. This timing is achievable across the full −40°C to +105°C industrial temperature range with ±1.5% frequency accuracy, making it suitable for deterministic real-time control loops in motor drives and sensor fusion applications.
Does the R5F1214AGNA#20 support background data flash rewriting while executing code from main flash memory?
No, the R5F1214AGNA#20 does not support background operation (BGO) for data flash. During data flash memory rewriting, instruction execution from code flash memory is halted. This requires careful firmware design to enter a safe state before initiating writes - a constraint explicitly documented in the R01DS0431EJ0130 datasheet Section 1.1.
How many analog input channels and what resolution does the A/D converter in the R5F1214AGNA#20 provide?
The R5F1214AGNA#20 features an 8/10-bit successive approximation A/D converter with up to 11 analog input channels (ANI0–ANI10). Resolution is selectable per conversion, and the converter operates across the full 2.4–5.5 V supply range with an internal 0.815 V reference, enabling direct thermistor or potentiometer interfacing without external references.
What is the purpose of the VCOUT0 and VCOUT1 pins on the R5F1214AGNA#20, and how are they used?
VCOUT0 and VCOUT1 on the R5F1214AGNA#20 are dedicated voltage monitor outputs that reflect internal voltage regulator states. They can drive external comparators or LED indicators to signal brown-out conditions or power-rail integrity loss. Both pins appear on P125 and P121/P122 depending on configuration, and their behavior is defined in the RL78/G16 User's Manual Section 27.3.2.
Can the R5F1214AGNA#20 operate with an external crystal oscillator, and what are the supported frequencies?
Yes, the R5F1214AGNA#20 supports external crystal oscillators via X1/XT1 (P121) and X2/XT2 (P122) pins. It accepts standard crystals from 32.768 kHz (for RTC) up to 20 MHz, with full functionality including PLL multiplication and clock switching. The device also includes a high-speed on-chip oscillator (1–16 MHz) as a fallback or primary clock source.
R5F1214AGNA#20 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 16-WFQFN Exposed Pad
- Series:
- RL78/G16
- Packaging:
- Tray
- Product Status:
- Last Time Buy
- 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:
- 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 7x8/10b
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F1214AGNA#20 FAQ
1.How can I place an order for R5F1214AGNA#20 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F1214AGNA#20 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 R5F1214AGNA#20 reliable?
The price and inventory of R5F1214AGNA#20 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F1214AGNA#20 is usually 5 days.
3.What payment methods are accepted for R5F1214AGNA#20?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F1214AGNA#20 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F1214AGNA#20?
R5F1214AGNA#20 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F1214AGNA#20 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 R5F1214AGNA#20?
For technical support, including R5F1214AGNA#20 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F1214AGNA#20 requirements.
6.How does Aetrix verify that R5F1214AGNA#20 is sourced from the original manufacturer or authorized distributors?
All R5F1214AGNA#20 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 R5F1214AGNA#20 meets industry standards.
7.What is the process for return or replacement of R5F1214AGNA#20?
All R5F1214AGNA#20 units undergo pre-shipment inspection (PSI). If there is an issue with R5F1214AGNA#20, 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 R5F1214AGNA#20 part is unused and in its original packaging.
Return procedure for R5F1214AGNA#20:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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