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Renesas R5F1217CGNA#20
- Part No.:
- R5F1217CGNA#20
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 24-WFQFN Exposed Pad
- Datasheet:
-
R5F1217CGNA#20.pdf
- Description:
- MCU:RL78
- Quantity:
- Payment:
- Shipping:
Inventory:1,960
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Product details
Overview
R5F1217CGNA#20 from Renesas Electronics is a 24-pin HWQFN-packaged 16-bit RL78/G16 microcontroller with 32 KB code flash, 2 KB RAM, and industrial-grade operation up to +125°C. It integrates an 8/10-bit ADC (11-channel), capacitive touch sensing unit (15-channel), real-time clock with calendar, and multiple serial interfaces including UART, simplified SPI (CSI), simplified I²C, and full I²C - targeting embedded control in HVAC actuators, industrial sensor nodes, and smart appliance HMI panels.
For engineers reviewing the R5F1217CGNA#20 datasheet, R5F1217CGNA#20 pinout, R5F1217CGNA#20 application, or R5F1217CGNA#20 equivalent, key selection criteria include its 24-pin HWQFN (4 × 4 mm, 0.5-mm pitch) footprint, −40°C to +125°C temperature rating (M-grade), 32 KB flash with 1 KB data flash, CTSU-based touch interface, and dual-oscillator support (16 MHz high-speed + 32.768 kHz subsystem).
Technical Context
The R5F1217CGNA#20 implements the RL78 CPU core with a 3-stage pipeline CISC architecture, enabling instruction execution times adjustable from 0.0625 μs (@16 MHz) to 30.5 μs (@32.768 kHz). Its memory subsystem includes separate code flash (32 KB, 1 KB blocks) and data flash (1 KB, 512 B blocks), with background operation unsupported during data flash writes.
Peripheral integration centers on low-power operation: HALT and STOP modes, on-chip SPOR reset, 16-bit timer array (8 channels), watchdog timer, RTC2 with alarm and correction, and configurable CTSU supporting both self- and mutual-capacitance touch sensing across 15 pins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC with 3-stage pipeline, 1 MB address space |
| Flash Memory | 32 KB code flash (1 KB erase blocks); 1 KB data flash (512 B blocks, 1M rewrite cycles) |
| RAM | 2 KB on-chip SRAM for runtime variables and stack |
| Operating Voltage | 2.4 V to 5.5 V single supply - enables direct battery or unregulated rail operation |
| Temperature Range | −40°C to +125°C (M-grade industrial qualification) |
| ADC | 8/10-bit resolution, 11 analog inputs, internal reference (0.815 V) and temperature sensor |
| CTSU | Capacitive Touch Sensing Unit with 15 channels, supports self- and mutual-capacitance configurations |
Pinout & Package
24-pin HWQFN package (4.0 × 4.0 mm, 0.5-mm pitch) with exposed die pad requiring thermal anchoring to a non-electrical PCB copper area.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P125 | Reset / Interrupt Input | Active-low reset with selectable SPOR threshold; doubles as INTP1/INTP0 interrupt input |
| P00–P07, P10–P11, P13–P17, P20–P23, P40–P43, P60–P61 | Multi-function I/O Port | Configurable digital I/O, analog input (ANI0–ANI10), touch sense (TS00–TS14), timer I/O (TI00–TI07, TO00–TO07), serial signals (SI/SO/SCK/SCL/SDA/SDAA/SCLA), and interrupt sources (INTP0–INTP9) |
| VDD / VSS | Power Supply | Single 2.4–5.5 V supply and ground - no separate analog/digital rails required |
| P121 / P122 | Crystal Oscillator Inputs | Support external crystal (X1/X2) or external clock (EXCLK/EXCLKS) for precise timing or low-jitter operation |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power operation | Halt mode current ≤ 0.55 μA and Stop mode ≤ 0.37 μA at VDD = 3.0 V, TA = 25°C - extends battery life in remote sensors |
| Integrated capacitive touch | CTSU supports 15-key self-capacitance or 16-key mutual-capacitance matrix without external components - reduces BOM cost and board space |
| Real-time clock with calendar | RTC2 provides 99-year calendar, alarm, and automatic clock correction - eliminates need for external RTC IC in time-stamped logging |
| Dual oscillator system | Independent high-speed (16 MHz ±1.0%) and low-speed (32.768 kHz) on-chip oscillators - enables fast wake-up from deep sleep while maintaining accurate timekeeping |
| On-chip debug & programming | Full on-chip debug via TOOL0/TOOLRxD/TOOLTxD pins; self-programming without boot swap - simplifies field firmware updates |
Applications
| Industrial Sensor Node | Smart Appliance HMI |
|---|---|
Use Scenario: Battery-powered temperature/humidity sensor node in factory automation with wireless telemetry. IC Role / Device Role / Timing Role: Main controller executing sensor acquisition, data preprocessing, low-power scheduling, and UART-based transmission to gateway. Use Value: 61-μA/MHz active current and sub-μA Stop mode enable multi-year battery life; integrated ADC and RTC eliminate discrete signal chain components. | Use Scenario: Touch-enabled control panel for commercial refrigeration units with backlight dimming and status feedback. IC Role / Device Role / Timing Role: Dedicated HMI processor managing capacitive touch decoding, LED/PWM backlight control, buzzer alerts, and serial communication with main MCU. Use Value: On-chip CTSU supports 15-key self-capacitance layout with noise immunity; PCLBUZ0 enables direct piezo driver output without external amplifier. |
| HVAC Actuator Module | Programmable Power Relay Controller |
Use Scenario: Motorized damper actuator in building management systems requiring position feedback and thermal derating logic. IC Role / Device Role / Timing Role: Embedded motion controller reading potentiometer/encoder inputs, driving H-bridge gate drivers, and monitoring temperature via on-chip sensor. Use Value: 11-channel ADC supports simultaneous analog sensing (position, temp, supply); 16-bit timer array enables precise PWM generation for motor control. | Use Scenario: DIN-rail mounted relay controller with programmable delay, cycle counting, and fault logging for industrial machinery. IC Role / Device Role / Timing Role: System-on-chip managing opto-isolated inputs, relay drive outputs, EEPROM-backed event logging, and RS-485 communication. Use Value: 32 KB flash accommodates complex state-machine logic and firmware updates; data flash provides 1M-cycle nonvolatile storage for counters and logs without external EEPROM. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F1217CMNA#20 | Same package, pinout, and peripherals; differs only in temperature grade (M-grade vs G-grade - +125°C vs +105°C max operating range) | Suitable for extended-temperature environments such as under-hood automotive or high-ambient industrial enclosures | Select R5F1217CMNA#20 when operation beyond +105°C is required; otherwise R5F1217CGNA#20 meets standard industrial specs. |
| R5F1216CGSP#30 | 20-pin LSSOP package (4.4 × 6.5 mm), same 32 KB flash/RAM/CTSU/peripherals but fewer I/O (20 pins vs 24) and no P10–P17/P20–P23 pins | Fits space-constrained designs where 24-pin QFN is impractical and I/O count can be reduced by ≥4 signals | Choose R5F1216CGSP#30 for cost-sensitive, lower-I/O applications with LSSOP assembly preference; verify pin compatibility for existing layouts. |
Compared with R5F1217CMNA#20 and R5F1216CGSP#30, the R5F1217CGNA#20 delivers optimal balance of industrial temperature margin (+105°C), compact 24-pin HWQFN footprint, and full peripheral set - making it ideal for new designs prioritizing thermal robustness and board-area efficiency without sacrificing I/O flexibility.
Availability
R5F1217CGNA#20 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart appliance HMIs, HVAC actuator modules, and programmable power relay controllers requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R5F1217CGNA#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 Corporation 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 true low-power embedded control with integrated capacitive touch, RTC, and mixed-signal peripherals - designed specifically for cost-sensitive, energy-efficient industrial and consumer HMI and sensor applications.
FAQ
What is the maximum operating temperature specification for the R5F1217CGNA#20?
The R5F1217CGNA#20 is rated for industrial operation from −40°C to +105°C (G-grade). This is confirmed in the datasheet's "Operating ambient temperature" section and distinguishes it from the M-grade variant (R5F1217CMNA#20), which extends to +125°C. The device maintains full functionality and parameter compliance across this entire range.
Does the R5F1217CGNA#20 support background data flash rewriting while executing code from flash?
No, the R5F1217CGNA#20 does not support background operation (BGO) for data flash. As stated in the datasheet, instructions cannot be executed from code flash memory while rewriting data flash memory. Code execution must be suspended or relocated to RAM during data flash write/erase operations.
How many capacitive touch channels does the R5F1217CGNA#20 support, and what configuration methods are available?
The R5F1217CGNA#20 integrates a Capacitive Touch Sensing Unit (CTSU) supporting up to 15 channels. It enables self-capacitance mode (one key per pin, up to 15 keys) and mutual-capacitance mode (matrix configuration using transmit/receive pin selection from the same 15 pins, supporting up to 16 keys). Both modes operate without external components.
What oscillator options are available on the R5F1217CGNA#20 for system clock generation?
The R5F1217CGNA#20 provides a high-speed on-chip oscillator (16/8/4/2/1 MHz, ±1.0% accuracy at +25°C) and a dedicated low-speed on-chip oscillator (32.768 kHz for RTC). It also supports external crystal (X1/X2) or external clock input (EXCLK/EXCLKS) via P121/P122 pins for higher precision or jitter-sensitive applications.
Is the R5F1217CGNA#20 pin-compatible with other RL78/G16 variants in the 24-pin HWQFN package?
Yes, all RL78/G16 devices in the 24-pin HWQFN package - including R5F1217CANA#20, R5F1217AGNA#20, R5F1217CGNA#20, and R5F1217CMNA#20 - share identical pinouts, electrical characteristics, and peripheral mappings. Differences are limited to memory configuration (A=16 KB, C=32 KB), temperature grade (A/G/M), and ordering suffix (#20 denotes tray packaging).
R5F1217CGNA#20 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 24-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:
- 21
- 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 11x8/10b
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F1217CGNA#20 FAQ
1.How can I place an order for R5F1217CGNA#20 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F1217CGNA#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 R5F1217CGNA#20 reliable?
The price and inventory of R5F1217CGNA#20 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F1217CGNA#20 is usually 5 days.
3.What payment methods are accepted for R5F1217CGNA#20?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F1217CGNA#20 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F1217CGNA#20?
R5F1217CGNA#20 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F1217CGNA#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 R5F1217CGNA#20?
For technical support, including R5F1217CGNA#20 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F1217CGNA#20 requirements.
6.How does Aetrix verify that R5F1217CGNA#20 is sourced from the original manufacturer or authorized distributors?
All R5F1217CGNA#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 R5F1217CGNA#20 meets industry standards.
7.What is the process for return or replacement of R5F1217CGNA#20?
All R5F1217CGNA#20 units undergo pre-shipment inspection (PSI). If there is an issue with R5F1217CGNA#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 R5F1217CGNA#20 part is unused and in its original packaging.
Return procedure for R5F1217CGNA#20:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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