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Renesas R5F1214AGNA#40

Name: R5F1214AGNA#40
Brand: Renesas
SKU: R5F1214AGNA#40
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: R5F1214AGNA#40

Manufacturer:: Renesas

Category:: Microcontrollers

Package:: 16-WFQFN Exposed Pad

Datasheet:: R5F1214AGNA#40.pdf

Description:: 16BIT MCU RL78/G16 16K 16HWQFN -

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Product details

Overview

R5F1214AGNA#40 from Renesas Electronics is a 16-pin HWQFN-packaged RL78/G16 16-bit microcontroller with 16 KB flash, 2 KB RAM, and integrated capacitive touch sensing (15-channel CTSU), designed for low-power industrial control applications operating from −40°C to +105°C. It features an RL78 CPU core (3-stage pipeline), 8× 16-bit timers, 10-bit A/D converter (11-channel), real-time clock with calendar, and multiple serial interfaces including UART, simplified SPI (CSI), and I²C.

For engineers reviewing the R5F1214AGNA#40 datasheet, R5F1214AGNA#40 pinout, R5F1214AGNA#40 application, or R5F1214AGNA#40 equivalent, this page delivers verified technical context, package-specific pin mapping, functional alternatives, and supply-chain support tailored for industrial embedded design and production ramp-up.

Technical Context

The R5F1214AGNA#40 implements the RL78 CPU core with configurable instruction timing (0.0625 μs minimum at 16 MHz, 30.5 μs at 32.768 kHz), 1 MB address space, and four register banks. Its power management includes HALT and STOP modes, on-chip SPOR reset, and voltage operation from 2.4 V to 5.5 V.

Peripherals include a 10-bit A/D converter with internal reference (0.815 V) and temperature sensor, dual comparators, RTC with alarm and correction, and a dedicated 15-channel capacitive touch sensing unit supporting self- and mutual-capacitance configurations - all accessible via 16-pin HWQFN I/O with programmable peripheral redirection.

Key Specifications

Parameter	Value and Actual Design Meaning
CPU Core	RL78 16-bit CISC with 3-stage pipeline; supports variable instruction timing from 0.0625 μs (16 MHz) to 30.5 μs (32.768 kHz)
Memory	16 KB code flash (1 KB blocks), 1 KB data flash (512 B blocks), 2 KB on-chip RAM
Operating Voltage	2.4 V to 5.5 V single supply; enables direct interface with common industrial sensors and logic without level-shifting
Temperature Range	−40°C to +105°C (G-grade); qualified for industrial ambient conditions without derating
A/D Converter	10-bit resolution, up to 11 analog inputs, internal 0.815 V reference and temperature sensor for calibration-free monitoring
Capacitive Touch	15-channel CTSU supporting self-capacitance (15 keys) or mutual-capacitance matrix (up to 16 keys); no external components required
Timers & RTC	Eight 16-bit timer channels, one 12-bit interval timer, watchdog timer, and RTC with 99-year calendar, alarm, and correction

Pinout & Package

16-pin HWQFN (3 × 3 mm, 0.5-mm pitch) with exposed die pad requiring thermal connection to PCB ground plane per Renesas layout guidelines.

Pin/Terminal	Circuit Role	Design Meaning
P125	RESET/INTP1/VCOUT0/VCOUT1/INTP0	Active-low reset input with selectable SPOR threshold; also serves as interrupt input and VCOUT output for comparator reference
P137	INTP0/TI00	Dedicated external interrupt input and Timer Array Unit channel 0 input capture/compare signal
P122	X2/XT2/EXCLK/EXCLKS/TI05/TO05/INTP2	Crystal oscillator input (X2) or external clock input (EXCLK); also provides Timer Array Unit channel 5 I/O and interrupt capability
P121	X1/XT1/TI07/TO07/INTP3/INTP4/INTP5	Primary crystal oscillator input (X1); doubles as Timer Array Unit channel 7 I/O and supports three independent interrupt sources
VSS	Ground	System ground reference; must be connected to PCB ground plane with low-impedance path
VDD	Power Supply	Core and I/O supply (2.4–5.5 V); decoupling capacitor required within 1 cm of pin per datasheet layout rules
P00	TOOLTxD/INTP6/SO00/TxD0/RTC1HZ/SCK11/SCL11/SCLA0	UART transmit output, serial array output, RTC 1 Hz output, and I²C/SPI clock/data lines - multiplexed via PIOR register
P01	TOOLRxD/ANI0/INTP5/TS00/TI02/TO02/SI00/RxD0/SDA00/SDAA0	UART receive input, analog input 0, touch sense channel 0, Timer Array Unit channel 2 I/O, and serial data lines - supports simultaneous analog/touch/serial use
P02	PCLBUZ0/ANI1/VCOUT0/INTP7/TSCAP/TI01/TO01/SCK00/SCL00/SO11	Programmable buzzer output, analog input 1, comparator output, touch sense CAP pin, Timer Array Unit channel 1 I/O, and SPI clock/data - central to HMI subsystem
P03	ANI2/IVCMP0/INTP4/TS03/TO00/RxD1/TI00/SO00/TxD0	Analog input 2, comparator input, interrupt input, touch sense channel 3, UART receive, Timer Array Unit channel 0 output, and serial I/O - enables mixed-signal control loop
P04	ANI3/IVREF0/INTP3/TS04/TI06/TO06/TxD1/TI01/TO01/SI00/RxD0/SDA00/SO00/TxD0	Analog input 3, internal reference selection, interrupt input, touch sense channel 4, UART transmit, and dual timer/serial functions - supports redundant communication paths
P05	ANI4/IVCMP1/INTP6/TS05/SO11/TI02/TO02/TI07/TO07/SCK00/SCL00/SI00/RxD0/SDA00	Analog input 4, second comparator input, interrupt input, touch sense channel 5, and multi-protocol serial I/O - expands analog monitoring and interface flexibility
P06	ANI5/IVREF1/TS06/SI11/SDA11/SCLA0/PCLBUZ0/INTP7/TI03/TO03/SCK00/SCL00	Analog input 5, secondary reference selection, touch sense channel 6, I²C data line, buzzer output, and timer/serial I/O - key for multi-sensor systems
P07	ANI6/VCOUT1/TS07/TI04/TO04/SCK11/SCL11/SDAA0/INTP5/TO03	Analog input 6, second comparator output, touch sense channel 7, SPI/I²C clock/data, and timer output - completes 8-channel analog front-end
P40	TOOL0/INTP2/PCLBUZ0/TI01/TO01	On-chip debug tool interface, interrupt input, buzzer output, and Timer Array Unit channel 1 I/O - enables in-system debugging without external probes
P41	RTC1HZ/TS13/TI03/TO03/SCK20/SCL20/VCOUT0/VCOUT1/INTP3/INTP4/TI02/TO02/SO11/SDA11	RTC 1 Hz output, touch sense channel 13, Timer Array Unit channel 3 I/O, secondary SPI/I²C interface, and dual VCOUT outputs - extends timing and sensing capabilities

Key Features

Feature	Design Value
True Low-Power Platform	61 µA/MHz active current at TA = 125°C; HALT/STOP modes reduce leakage to sub-µA levels for battery-backed operation
Integrated Capacitive Touch Sensing	15-channel CTSU eliminates external touch controller ICs and reduces BOM cost in HMI designs
Flexible Serial Connectivity	Up to 3 CSI (SPI), 3 UART, 3 simplified I²C, and 1 full I²C channels - supports concurrent sensor, display, and host communication
Robust Industrial Timing	RTC with 99-year calendar, alarm, and auto-correction ensures accurate timekeeping across temperature and voltage variations
Configurable Analog Front-End	10-bit A/D with internal reference, temperature sensor, and comparator inputs enables closed-loop control without external precision references
Peripheral I/O Redirection	PIOR registers allow dynamic remapping of serial, timer, and interrupt functions to alternate pins - simplifies PCB layout and reuse

Applications

Industrial Control Panel	Smart Appliance HMI
Use Scenario: Touch-enabled operator interface for PLC-based machinery with status LEDs, relay control, and sensor readouts. IC Role / Device Role / Timing Role: Main system controller executing real-time logic, managing capacitive touch buttons, driving UART-connected displays, and logging events via RTC-timestamped data flash writes. Use Value: Single-chip integration of touch, timing, serial comms, and 10-bit analog monitoring reduces component count by ≥4 ICs versus discrete solutions.	Use Scenario: User interface for refrigerator/freezer with touch-sensitive door controls, temperature monitoring, and energy usage reporting. IC Role / Device Role / Timing Role: Dedicated HMI processor handling capacitive touch detection, reading thermistor inputs via 10-bit A/D, and communicating over UART/I²C to main MCU. Use Value: On-chip CTSU and internal voltage reference eliminate external RC networks and calibration steps, cutting manufacturing test time by 30%.
Energy Meter Interface Module	Factory Automation Sensor Node
Use Scenario: DIN-rail mounted meter add-on module providing tamper detection, LCD backlight control, and RS-485 communication. IC Role / Device Role / Timing Role: Secondary controller managing RTC-corrected time stamps for event logs, driving buzzer alerts, and buffering serial data before transmission. Use Value: 16 KB flash stores firmware updates and 1 million-cycle data flash retains 10+ years of tamper logs without external EEPROM.	Use Scenario: Wireless sensor node monitoring motor vibration, temperature, and current in predictive maintenance systems. IC Role / Device Role / Timing Role: Signal acquisition hub digitizing analog sensor outputs, performing basic FFT preprocessing via timer-triggered sampling, and packaging data for BLE/Wi-Fi MCU. Use Value: Eight 16-bit timers enable precise synchronized sampling across 11 analog channels, achieving <100 ns inter-channel skew for phase analysis.

Industrial Control Panel

Smart Appliance HMI

Use Scenario: Touch-enabled operator interface for PLC-based machinery with status LEDs, relay control, and sensor readouts.

IC Role / Device Role / Timing Role: Main system controller executing real-time logic, managing capacitive touch buttons, driving UART-connected displays, and logging events via RTC-timestamped data flash writes.

Use Value: Single-chip integration of touch, timing, serial comms, and 10-bit analog monitoring reduces component count by ≥4 ICs versus discrete solutions.

Use Scenario: User interface for refrigerator/freezer with touch-sensitive door controls, temperature monitoring, and energy usage reporting.

IC Role / Device Role / Timing Role: Dedicated HMI processor handling capacitive touch detection, reading thermistor inputs via 10-bit A/D, and communicating over UART/I²C to main MCU.

Use Value: On-chip CTSU and internal voltage reference eliminate external RC networks and calibration steps, cutting manufacturing test time by 30%.

Energy Meter Interface Module

Factory Automation Sensor Node

Use Scenario: DIN-rail mounted meter add-on module providing tamper detection, LCD backlight control, and RS-485 communication.

IC Role / Device Role / Timing Role: Secondary controller managing RTC-corrected time stamps for event logs, driving buzzer alerts, and buffering serial data before transmission.

Use Value: 16 KB flash stores firmware updates and 1 million-cycle data flash retains 10+ years of tamper logs without external EEPROM.

Use Scenario: Wireless sensor node monitoring motor vibration, temperature, and current in predictive maintenance systems.

IC Role / Device Role / Timing Role: Signal acquisition hub digitizing analog sensor outputs, performing basic FFT preprocessing via timer-triggered sampling, and packaging data for BLE/Wi-Fi MCU.

Use Value: Eight 16-bit timers enable precise synchronized sampling across 11 analog channels, achieving <100 ns inter-channel skew for phase analysis.

Equivalent & Alternatives

The following parts are listed as comparable options for similar microcontroller applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
R5F1214CGNA#40	Same 16-pin HWQFN package and peripherals, but with 32 KB flash (vs. 16 KB) and G-grade (−40°C to +105°C) temperature rating	Required where firmware complexity exceeds 16 KB or future feature expansion is anticipated	Select when additional flash headroom is needed for OTA updates or enhanced security stacks
R5F1214AMNA#40	Same 16-pin HWQFN package and 16 KB flash, but M-grade (−40°C to +125°C) operation and higher max junction temperature	Suitable for under-hood automotive or high-ambient industrial enclosures exceeding +105°C	Choose only if ambient exceeds +105°C; otherwise, R5F1214AGNA#40 offers optimal cost/performance balance

Compared with R5F1214CGNA#40 and R5F1214AMNA#40, the R5F1214AGNA#40 delivers the ideal trade-off of industrial-grade reliability (−40°C to +105°C), sufficient 16 KB flash for most HMI and control firmware, and lowest bill-of-materials cost in the RL78/G16 16-pin HWQFN family.

Availability

R5F1214AGNA#40 is available at Aetrix Electronics and suitable for industrial control panels, smart appliance HMIs, energy meter interface modules, and factory automation sensor nodes requiring stable component supply across extended product lifecycles.

Supply support for R5F1214AGNA#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, and power management ICs for industrial, automotive, and IoT applications.

The RL78/G16 group targets cost-sensitive, low-power embedded systems requiring integrated analog, touch, and timing - optimized for rapid development of industrial HMIs and sensor edge nodes.

FAQ

What is the maximum operating frequency and corresponding instruction timing for R5F1214AGNA#40?

The R5F1214AGNA#40 supports a maximum high-speed operation of 16 MHz using the on-chip oscillator, delivering a minimum instruction execution time of 0.0625 μs. This timing is achievable across the full industrial temperature range (−40°C to +105°C) with ±1.5% frequency accuracy. Lower frequencies (8/4/2/1 MHz) are selectable for reduced power consumption without changing hardware configuration.

Does R5F1214AGNA#40 support background data flash rewriting while executing code from flash memory?

No, the R5F1214AGNA#40 does not support background operation (BGO) for data flash rewriting. During data flash write or erase operations, code execution from the code flash memory is halted. The device requires explicit software sequencing to enter a safe state before initiating flash writes, and execution resumes only after the operation completes and status flags are cleared.

How many capacitive touch sensing channels does R5F1214AGNA#40 provide, and what configurations are supported?

The R5F1214AGNA#40 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 matrix mode (transmit/receive pin pairing from the same 15 pins, supporting up to 16 keys). Both modes operate without external components and are configurable via dedicated CTSU registers in the R5F1214AGNA#40 peripheral set.

What serial communication interfaces are available on R5F1214AGNA#40, and how many instances of each?

The R5F1214AGNA#40 provides up to three simplified SPI (CSI) channels, three UART channels, three simplified I²C channels, and one full I²C channel. These interfaces are implemented in the Serial Array Unit (SAU) and IICA peripheral blocks. Pin multiplexing and Peripheral I/O Redirection (PIOR) registers allow flexible assignment of these functions across multiple I/O pins, enabling concurrent use of different protocols.

What is the analog-to-digital converter resolution and input channel count for R5F1214AGNA#40?

The R5F1214AGNA#40 features a 10-bit successive-approximation A/D converter with up to 11 analog input channels (ANI0–ANI10). It includes an internal reference voltage of 0.815 V (typical), an integrated temperature sensor, and selectable input ranges - all accessible without external components. Conversion is triggered by software, timers, or serial interface events.

R5F1214AGNA#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:: 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#40 FAQ

1.How can I place an order for R5F1214AGNA#40 through Aetrix?

Please submit a Request for Quotation (RFQ) for R5F1214AGNA#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 R5F1214AGNA#40 reliable?

The price and inventory of R5F1214AGNA#40 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F1214AGNA#40 is usually 5 days.

3.What payment methods are accepted for R5F1214AGNA#40?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F1214AGNA#40 transactions.

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4.How is shipping managed for R5F1214AGNA#40?

R5F1214AGNA#40 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your R5F1214AGNA#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 R5F1214AGNA#40?

For technical support, including R5F1214AGNA#40 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F1214AGNA#40 requirements.

6.How does Aetrix verify that R5F1214AGNA#40 is sourced from the original manufacturer or authorized distributors?

All R5F1214AGNA#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 R5F1214AGNA#40 meets industry standards.

7.What is the process for return or replacement of R5F1214AGNA#40?

All R5F1214AGNA#40 units undergo pre-shipment inspection (PSI). If there is an issue with R5F1214AGNA#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 R5F1214AGNA#40 part is unused and in its original packaging.

Return procedure for R5F1214AGNA#40:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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