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Renesas R5F1214CMNA#20
- Part No.:
- R5F1214CMNA#20
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 16-WFQFN Exposed Pad
- Datasheet:
-
R5F1214CMNA#20.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 16WFQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,880
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Product details
Overview
R5F1214CMNA#20 from Renesas Electronics is a 16-pin HWQFN-packaged 32-bit RL78/G16 microcontroller with 32 KB code flash, 2 KB RAM, and industrial-grade −40°C to +125°C operation. It integrates an 8/10-bit ADC (11-channel), capacitive touch sensing unit (15-channel), real-time clock with calendar, and dual serial interfaces - designed for embedded control in motor drives and industrial HMI panels.
For engineers reviewing the R5F1214CMNA#20 datasheet, R5F1214CMNA#20 pinout, R5F1214CMNA#20 application, or R5F1214CMNA#20 equivalent, this page delivers verified electrical specs, validated package mapping, confirmed peripheral functions, and real-world selection guidance for high-temperature industrial MCU replacement and new design-in.
Technical Context
The R5F1214CMNA#20 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, supporting instruction execution times from 0.0625 μs (@16 MHz) to 30.5 μs (@32.768 kHz). 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 on-chip RAM.
Peripheral integration centers on low-power operation: HALT/STOP modes, 61-μA/MHz active current at 125°C, and dedicated hardware for capacitive touch sensing (CTSU) with self- and mutual-capacitance support. Clocking uses a high-speed on-chip oscillator (±1.5% accuracy at TA = −40 to +125°C) and optional external crystal (X1/X2).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 32-bit CISC CPU with 3-stage pipeline and 1 MB address space |
| Flash Memory | 32 KB code flash (1 KB erase blocks); supports self-programming without boot swap |
| Data Flash | 1 KB data flash (512 B blocks); 1,000,000 write cycles; no background operation |
| Operating Temp | −40°C to +125°C (M-grade industrial qualification) |
| Supply Voltage | 2.4 V to 5.5 V single supply; enables direct battery or wide-input industrial rail operation |
| ADC | 8/10-bit resolution; up to 11 analog inputs; internal reference (0.815 V) and temperature sensor |
| CTSU | Capacitive Touch Sensing Unit with 15 channels; supports self-capacitance (15 keys) or mutual-capacitance matrix (up to 16 keys) |
Pinout & 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/VCOUT0/VCOUT1/INTP0/SI11 | Active-low reset input with interrupt capability; dual VCOUT outputs for voltage monitoring; SPI slave input |
| P137 | INTP0/TI00 | External interrupt 0 input; timer I/O channel 0 for capture/compare |
| P122 | X2/XT2/EXCLK/EXCLKS/TI05/TO05/INTP2 | Crystal oscillator input (X2) or external clock source; timer I/O channel 5 |
| P121 | X1/XT1/TI07/TO07/INTP3/INTP4/INTP5 | Crystal oscillator input (X1); timer I/O channel 7; three independent interrupt inputs |
| VSS | Ground | Primary digital ground reference; must be connected to PCB ground plane |
| VDD | Power Supply | 2.4–5.5 V main supply; decoupling capacitor required per datasheet layout guidelines |
| P00 | TOOLTxD/INTP6/SO00/TxD0/RTC1HZ/SCK11/SCL11/SCLA0 | UART transmit output; interrupt 6; SPI master out/slave out; RTC 1 Hz output; I²C clock/data lines |
| P01 | TOOLRxD/ANI0/INTP5/TS00/TI02/TO02/SI00/RxD0/SDA00/SDAA0 | UART receive input; analog input 0; touch sense channel 0; timer I/O 2; SPI/I²C data lines |
| P02 | PCLBUZ0/ANI1/VCOUT0/INTP7/TSCAP/TI01/TO01/SCK00/SCL00/SO11 | Buzzer output; analog input 1; voltage monitor output; touch sense CAP input; timer I/O 1; SPI clock |
| P03 | ANI2/IVCMP0/INTP4/TS03/TO00/RxD1/TI00/SO00/TxD0 | Analog input 2; comparator input; interrupt 4; touch sense channel 3; UART receive; timer output 0 |
| P04 | ANI3/IVREF0/INTP3/TS04/TI06/TO06/TxD1/TI01/TO01/SI00/RxD0/SDA00/SO00/TxD0 | Analog input 3; internal reference voltage source; interrupt 3; touch sense channel 4; UART transmit |
| P05 | ANI4/IVCMP1/INTP6/TS05/SO11/TI02/TO02/TI07/TO07/SCK00/SCL00/SI00/RxD0/SDA00 | Analog input 4; comparator input; interrupt 6; touch sense channel 5; SPI master out; timer I/O 2/7 |
| P06 | ANI5/IVREF1/TS06/SI11/SDA11/SCLA0/PCLBUZ0/INTP7/TI03/TO03/SCK00/SCL00 | Analog input 5; internal reference voltage source; touch sense channel 6; I²C data line; buzzer output |
| P07 | ANI6/VCOUT1/TS07/TI04/TO04/SCK11/SCL11/SDAA0/INTP5/TO03 | Analog input 6; second voltage monitor output; touch sense channel 7; timer I/O 4; I²C clock/data |
| P40 | TOOL0/INTP2/PCLBUZ0/TI01/TO01 | On-chip debug tool interface; interrupt 2; buzzer output; timer I/O 1 |
| P41 | RTC1HZ/TS13/TI03/TO03/SCK20/SCL20/VCOUT0/VCOUT1/INTP3/INTP4/TI02/TO02/SO11/SDA11 | RTC 1 Hz output; touch sense channel 13; timer I/O 3; secondary I²C interface; dual VCOUT outputs |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power operation | 61 μA/MHz active current at 125°C; HALT/STOP modes reduce leakage to sub-μA levels |
| Integrated capacitive touch | Hardware-accelerated CTSU supports 15 self-capacitance keys or 16 mutual-capacitance keys without CPU load |
| Industrial temperature grade | M-grade qualification (−40°C to +125°C) ensures reliability in motor control, power supplies, and factory automation |
| Dual serial interface flexibility | Configurable I²C (1 channel), simplified I²C (3 channels), UART (3 channels), and CSI/SPI (3 channels) |
| On-chip debug & programming | Full on-chip debug with no external emulator required; self-programming enables field firmware updates |
| Real-time clock with calendar | 99-year calendar, alarm function, and clock correction - operates independently during STOP mode |
Applications
| Industrial Motor Control | Smart Thermostat HMI |
|---|---|
|
Use Scenario: Closed-loop speed and position control of BLDC fans and pumps in HVAC systems. IC Role / Device Role / Timing Role: Main system controller executing FOC algorithms, reading hall sensors/encoders, driving gate drivers via PWM, and managing thermal protection. Use Value: 16-bit timer array (8 channels) provides precise PWM generation; 11-channel ADC monitors phase currents and temperature; CTSU enables intuitive touch interface. |
Use Scenario: Residential and commercial thermostats with capacitive touch buttons and environmental sensing. IC Role / Device Role / Timing Role: System-on-chip managing touch input, ambient temperature/humidity ADC readings, display backlight control, and wireless communication timing. Use Value: Integrated CTSU eliminates external touch controller; RTC with calendar maintains accurate scheduling; 2 KB RAM supports local UI state buffering. |
| Programmable Power Supply | Industrial Sensor Node |
|
Use Scenario: Digitally adjustable DC power supplies with voltage/current regulation and safety monitoring. IC Role / Device Role / Timing Role: Primary regulator controller performing PID loop computation, DAC feedback, overvoltage/overcurrent detection, and front-panel interface. Use Value: 8/10-bit ADC measures output parameters with internal 0.815 V reference; data flash stores calibration coefficients; STOP mode extends standby life. |
Use Scenario: Battery-powered condition-monitoring nodes in factory equipment with vibration, temperature, and humidity sensing. IC Role / Device Role / Timing Role: Low-power sensor aggregator sampling analog inputs, processing thresholds, and triggering BLE/Wi-Fi wake-up events. Use Value: 61-μA/MHz efficiency at 125°C enables extended battery life; HALT mode reduces current to 0.55 μA; CTSU supports tamper-detection touch zones. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F1214CGNA#20 | G-grade (−40°C to +105°C); identical pinout, memory, and peripherals | Suitable for industrial applications not requiring full +125°C operation | Select when ambient temperature stays below +105°C to reduce cost while retaining same footprint and firmware |
| R5F1214AMNA#20 | A-grade (−40°C to +85°C); 16 KB code flash (vs. 32 KB); otherwise identical package and I/O | Targeted at cost-sensitive consumer-grade devices with lower memory needs | Choose for simpler firmware or legacy designs where 16 KB flash suffices and extended temp range is unnecessary |
Compared with R5F1214CMNA#20, the G-grade R5F1214CGNA#20 offers identical functionality at lower thermal rating, while the A-grade R5F1214AMNA#20 reduces both flash capacity and temperature range - making the M-grade optimal for thermally demanding industrial control where full 32 KB and +125°C operation are essential.
Availability
R5F1214CMNA#20 is available at Aetrix Electronics and suitable for industrial motor control, smart thermostat HMI, and programmable power supply designs requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R5F1214CMNA#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 automotive, industrial, and IoT markets.
The RL78/G16 product line delivers ultra-low-power 32-bit MCUs optimized for cost-sensitive industrial and consumer applications requiring robust touch, timing, and analog integration - with M-grade variants like R5F1214CMNA#20 targeting high-reliability thermal environments.
FAQ
What is the maximum operating temperature specification for R5F1214CMNA#20?
The R5F1214CMNA#20 is rated for operation from −40°C to +125°C (M-grade industrial qualification), verified per Renesas' reliability testing standards. This allows deployment in high-temperature environments such as motor drive enclosures, power supply heatsinks, and under-hood industrial controllers where ambient temperatures exceed +105°C.
Does R5F1214CMNA#20 support in-system programming without external hardware?
Yes, R5F1214CMNA#20 includes full on-chip debug functionality and self-programming capability for code flash and data flash. No external programmer or bootloader is required - firmware updates can be performed directly via UART, CSI, or I²C using Renesas' standard flash programming protocol.
How many capacitive touch channels does R5F1214CMNA#20 provide, and what configurations are supported?
R5F1214CMNA#20 integrates a dedicated Capacitive Touch Sensing Unit (CTSU) supporting up to 15 self-capacitance channels (one key per pin) or up to 16 mutual-capacitance keys using matrix configuration across 15 pins. Both modes operate in hardware without CPU intervention, enabling low-power touch wake-up.
What is the flash memory organization and endurance of R5F1214CMNA#20?
R5F1214CMNA#20 contains 32 KB of code flash organized in 1 KB blocks (32 blocks total), and 1 KB of data flash in two 512 B blocks. Data flash endurance is rated at 1,000,000 write cycles minimum (typical), with rewrite voltage matching the main supply (2.4–5.5 V).
Is R5F1214CMNA#20 pin-compatible with other RL78/G16 variants in the same package?
Yes, all 16-pin HWQFN RL78/G16 variants - including R5F1214CMNA#20, R5F1214CGNA#20, and R5F1214AMNA#20 - share identical pinout, package dimensions (3 × 3 mm), and mechanical footprint. Firmware and PCB layout are interchangeable across these variants when thermal and memory requirements align.
R5F1214CMNA#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:
- 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 ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F1214CMNA#20 FAQ
1.How can I place an order for R5F1214CMNA#20 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F1214CMNA#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 R5F1214CMNA#20 reliable?
The price and inventory of R5F1214CMNA#20 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F1214CMNA#20 is usually 5 days.
3.What payment methods are accepted for R5F1214CMNA#20?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F1214CMNA#20 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F1214CMNA#20?
R5F1214CMNA#20 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F1214CMNA#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 R5F1214CMNA#20?
For technical support, including R5F1214CMNA#20 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F1214CMNA#20 requirements.
6.How does Aetrix verify that R5F1214CMNA#20 is sourced from the original manufacturer or authorized distributors?
All R5F1214CMNA#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 R5F1214CMNA#20 meets industry standards.
7.What is the process for return or replacement of R5F1214CMNA#20?
All R5F1214CMNA#20 units undergo pre-shipment inspection (PSI). If there is an issue with R5F1214CMNA#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 R5F1214CMNA#20 part is unused and in its original packaging.
Return procedure for R5F1214CMNA#20:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F1214CMNA#20 Tags
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