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Renesas R5F1214AMNA#20
- Part No.:
- R5F1214AMNA#20
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 16-WFQFN Exposed Pad
- Datasheet:
-
R5F1214AMNA#20.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 16WFQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,960
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Product details
Overview
R5F1214AMNA#20 from Renesas Electronics is a 16-pin, 16 KB flash, 2 KB RAM RL78/G16 microcontroller with industrial-grade temperature range (−40°C to +125°C), integrated capacitive touch sensing unit (15 channels), and dual 8/10-bit A/D converters (11-channel analog input). It operates from 2.4–5.5 V and supports ultra-low-power STOP/HALT modes for battery-powered industrial HMI and sensor interface applications.
For engineers reviewing the R5F1214AMNA#20 datasheet, R5F1214AMNA#20 pinout, R5F1214AMNA#20 application, or R5F1214AMNA#20 equivalent, key selection criteria include its HWQFN-16 package (3 × 3 mm, 0.5-mm pitch), 16 KB code flash with self-programming, 1 KB data flash rated for 1M rewrites, and real-time clock with calendar/alarm functions - all validated for extended-temperature industrial deployment.
Technical Context
The R5F1214AMNA#20 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, supporting configurable instruction execution time from 0.0625 μs (@16 MHz high-speed on-chip oscillator) to 30.5 μs (@32.768 kHz subsystem clock). Its memory map spans 1 MB address space with four register banks (8-bit × 8 registers each).
It integrates a 16-bit timer array unit (8 channels), 12-bit interval timer, watchdog timer, and RTC2 with 99-year calendar, alarm, and clock correction. Communication interfaces include up to three simplified SPI (CSI), three UART, three simplified I²C, and one full I²C channel - all multiplexed across its 16-pin HWQFN footprint.
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 | 16 KB code flash (1 KB block size); supports self-programming without boot swap |
| Data Flash | 1 KB data flash (512 B block size); 1,000,000 rewrite cycles at VDD = 2.4–5.5 V |
| RAM | 2 KB on-chip RAM for real-time variable storage and stack operations |
| Operating Voltage | 2.4 V to 5.5 V single supply - enables direct battery or wide-input industrial rail operation |
| Temperature Range | −40°C to +125°C (M-grade industrial qualification) |
| Capacitive Touch | 15-channel CTSU supporting self-capacitance (15 keys) or mutual-capacitance matrix (up to 16 keys) |
Pinout & Package
Package: 16-pin HWQFN (3 × 3 mm, 0.5-mm pitch) with exposed die pad requiring non-electrical PCB thermal pad connection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P125 | RESET/INTP1 | Active-low reset input with selectable power-on-reset threshold; also serves as external interrupt 1 |
| P137 | INTP0/TI00 | External interrupt 0 input and Timer Array Unit channel 0 input capture/output compare |
| P122 | X2/XT2/EXCLK | Crystal oscillator input (X2) or external clock input (EXCLK) for high-precision timing |
| P121 | X1/XT1 | Crystal oscillator input (X1) for main system clock generation |
| VSS | Ground | Digital ground reference plane for noise-sensitive analog and digital circuits |
| VDD | Power Supply | Primary 2.4–5.5 V supply for core, peripherals, and I/O |
| P00 | TOOLTxD/INTP6 | UART transmit output and external interrupt 6 input - used for debug communication and event triggering |
| P01 | TOOLRxD/ANI0 | UART receive input and analog input 0 - enables serial debugging and analog sensor acquisition |
| P02 | PCLBUZ0/ANI1/VCOUT0/TSCAP | Buzzer output, analog input 1, voltage comparator output 0, and capacitive touch sense input - unified HMI signal path |
| P03 | ANI2/IVCMP0/INTP4/TS03 | Analog input 2, internal voltage comparator input 0, interrupt 4, and touch sense channel 3 - shared resource for mixed-signal control |
| P04 | ANI3/IVREF0/INTP3/TS04 | Analog input 3, internal reference voltage source 0, interrupt 3, and touch sense channel 4 - supports precision ADC and CTSU calibration |
| P05 | ANI4/IVCMP1/INTP6/TS05 | Analog input 4, internal comparator input 1, interrupt 6, and touch sense channel 5 - expands multi-channel sensing capability |
| P06 | ANI5/IVREF1/TS06 | Analog input 5, internal reference voltage source 1, and touch sense channel 6 - enables dual-reference ADC operation |
| P07 | ANI6/VCOUT1/TS07 | Analog input 6, voltage comparator output 1, and touch sense channel 7 - extends analog monitoring and touch coverage |
| P40 | TOOL0/INTP2 | On-chip debugger interface pin and external interrupt 2 - essential for in-system programming and event response |
| P41 | RTC1HZ/TS13 | Real-time clock 1 Hz output and touch sense channel 13 - provides precise timekeeping and additional CTSU channel |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power STOP/HALT modes | Enables sub-μA standby current for battery-operated devices while retaining RAM and register state |
| Integrated 15-channel CTSU | Eliminates external touch controller ICs and reduces BOM cost in appliance and industrial panel designs |
| 16 KB flash with self-programming | Allows field firmware updates without external programmer - critical for remote device maintenance |
| RTC2 with calendar/alarm/correction | Provides accurate timekeeping over full −40°C to +125°C range without external crystal or compensation circuitry |
| 8/10-bit A/D converter (11-channel) | Supports simultaneous sampling of multiple sensors (temperature, voltage, current) with programmable resolution |
| High-speed on-chip oscillator (±1.5% @ TA = −40 to +125°C) | Removes need for external crystal in cost-sensitive applications while maintaining timing accuracy for UART and timers |
Applications
| Industrial Control Panel | Smart Sensor Node |
|---|---|
Use Scenario: Front-panel HMI for HVAC controllers, PLC operator interfaces, or motor drives with physical buttons and status indicators. IC Role / Device Role / Timing Role: Main MCU executing control logic, managing capacitive touch inputs, driving buzzer feedback, and communicating via UART/RS-485 to host controller. Use Value: Integrated CTSU and 16 KB flash enable compact, robust panel design with local firmware update capability and no external touch IC. | Use Scenario: Battery-powered environmental monitor measuring temperature, humidity, and air quality in factory or warehouse settings. IC Role / Device Role / Timing Role: System-on-chip sensor aggregator with A/D conversion, RTC-based wake-up scheduling, and low-power UART/I²C communication to gateway. Use Value: STOP mode current <61 µA/MHz and −40°C to +125°C rating ensure multi-year battery life and reliable operation in unconditioned industrial environments. |
| Appliance User Interface | Energy Metering Subsystem |
Use Scenario: Touch-enabled user interface for washing machines, ovens, or refrigerators requiring ESD-robust, waterproof front panels. IC Role / Device Role / Timing Role: Dedicated touch controller and UI manager interfacing with main application MCU via UART or SPI. Use Value: Self- and mutual-capacitance CTSU modes support both simple button overlays and complex matrix keypads - reducing mechanical switch count and failure points. | Use Scenario: Auxiliary measurement module in smart electricity meters tracking auxiliary parameters like temperature drift or supply rail stability. IC Role / Device Role / Timing Role: Precision analog front-end processor with 8/10-bit ADC, internal reference voltages, and RTC-triggered periodic sampling. Use Value: Dual IVREF0/IVREF1 sources and 11-channel analog input allow simultaneous calibration of multiple metering ICs while maintaining traceable time stamps. |
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 16 KB flash, 2 KB RAM, HWQFN-16 package, but rated for −40°C to +105°C (G-grade) instead of +125°C (M-grade) | Suitable for industrial equipment with lower ambient temperature ceilings; not qualified for under-hood or high-heat enclosure use | Select when full M-grade thermal margin is unnecessary and cost optimization is prioritized |
| R5F1214CMFP#50 | Same memory and peripherals but in 32-pin LQFP-32 (7 × 7 mm, 0.8-mm pitch) package with expanded I/O (30 pins vs. 14 usable) and additional UART/SPI/I²C channels | Required when more GPIO, analog inputs, or communication interfaces are needed beyond HWQFN-16 pin count limits | Select when board layout allows larger footprint and higher peripheral density is required |
Compared with R5F1214CGNA#20 and R5F1214CMFP#50, the R5F1214AMNA#20 uniquely delivers M-grade thermal qualification in the smallest RL78/G16 package, making it optimal for space-constrained, high-temperature industrial edge nodes where reliability trumps I/O expansion.
Availability
R5F1214AMNA#20 is available at Aetrix Electronics and suitable for industrial control panels, smart sensor nodes, appliance user interfaces, and energy metering subsystems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R5F1214AMNA#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, power, and SoC solutions for automotive, industrial, and enterprise markets.
The RL78/G16 product line delivers true low-power performance (61 µA/MHz at 125°C) with integrated capacitive touch, RTC, and analog peripherals - designed specifically for cost-sensitive, thermally demanding industrial HMI and sensor interface applications.
FAQ
What is the operating temperature range specified for the R5F1214AMNA#20?
The R5F1214AMNA#20 is rated for an industrial operating ambient temperature range of −40°C to +125°C (M-grade qualification), verified per Renesas datasheet R01DS0431EJ0130 Rev.1.30. This enables deployment in high-heat environments such as motor drive enclosures, under-hood automotive modules, and industrial process controllers without derating.
Does the R5F1214AMNA#20 support in-system programming via its dedicated debug interface?
Yes, the R5F1214AMNA#20 supports full in-system programming and debugging using the TOOL0 (P40) and TOOLRxD/TOOLTxD (P01/P00) pins. These pins implement Renesas' on-chip debug functionality, enabling flash programming, breakpoint setting, and real-time variable inspection without requiring external JTAG adapters.
How many analog input channels does the R5F1214AMNA#20 provide, and what is their resolution?
The R5F1214AMNA#20 integrates an 8/10-bit successive approximation A/D converter with up to 11 analog input channels (ANI0–ANI10), as confirmed in the "A/D converter" section of the datasheet. Resolution is software-selectable per channel, supporting both 8-bit fast conversion and 10-bit precision modes within the 2.4–5.5 V supply range.
Can the R5F1214AMNA#20 execute code while rewriting its data flash memory?
No, the R5F1214AMNA#20 does not support background operation (BGO) during data flash rewriting. As stated in the datasheet, instructions cannot be executed from code flash memory while data flash is being rewritten - requiring careful state management and temporary code relocation if real-time operation must continue.
What is the maximum number of capacitive touch keys supported by the CTSU in the R5F1214AMNA#20?
The R5F1214AMNA#20's integrated Capacitive Touch Sensing Unit (CTSUb) supports up to 15 keys in self-capacitance mode (one pin per key) or up to 16 keys in mutual-capacitance matrix mode using configurable transmit/receive pin assignments from its 15 available CTSU channels.
R5F1214AMNA#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 ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F1214AMNA#20 FAQ
1.How can I place an order for R5F1214AMNA#20 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F1214AMNA#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 R5F1214AMNA#20 reliable?
The price and inventory of R5F1214AMNA#20 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F1214AMNA#20 is usually 5 days.
3.What payment methods are accepted for R5F1214AMNA#20?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F1214AMNA#20 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F1214AMNA#20?
R5F1214AMNA#20 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F1214AMNA#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 R5F1214AMNA#20?
For technical support, including R5F1214AMNA#20 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F1214AMNA#20 requirements.
6.How does Aetrix verify that R5F1214AMNA#20 is sourced from the original manufacturer or authorized distributors?
All R5F1214AMNA#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 R5F1214AMNA#20 meets industry standards.
7.What is the process for return or replacement of R5F1214AMNA#20?
All R5F1214AMNA#20 units undergo pre-shipment inspection (PSI). If there is an issue with R5F1214AMNA#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 R5F1214AMNA#20 part is unused and in its original packaging.
Return procedure for R5F1214AMNA#20:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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