Renesas R5F1217AANA#40
- Part No.:
- R5F1217AANA#40
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 24-WFQFN Exposed Pad
- Datasheet:
-
R5F1217AANA#40.pdf
- Description:
- 16BIT MCU RL78/G16 16K 24HWQFN -
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F1217AANA#40 from Renesas Electronics is a 24-pin HWQFN-packaged 16-bit RL78/G16 microcontroller with 16 KB code flash, 2 KB RAM, and integrated capacitive touch sensing (15-channel CTSU). It operates from 2.4–5.5 V, supports ultra-low-power STOP/HALT modes, and delivers 61-µA/MHz active current at 125°C - enabling battery-powered human-interface applications such as appliance control panels and smart home sensors.
For engineers reviewing the R5F1217AANA#40 datasheet, R5F1217AANA#40 pinout, R5F1217AANA#40 application, or R5F1217AANA#40 equivalent, key selection criteria include its 24-pin HWQFN (4 × 4 mm, 0.5-mm pitch) footprint, consumer-grade −40 to +85°C temperature range (A-suffix), 16 KB flash/2 KB RAM memory configuration, and native support for I²C, UART, CSI, and real-time clock with calendar function.
Technical Context
The R5F1217AANA#40 implements the RL78 CPU core with a 3-stage pipeline CISC architecture, supporting instruction execution times from 0.0625 µs (16 MHz high-speed on-chip oscillator) to 30.5 µs (32.768 kHz subsystem clock). Its memory subsystem includes 16 KB code flash (1 KB block size), 1 KB data flash (512 B blocks, 1M rewrite cycles), and 2 KB SRAM.
Peripheral integration includes an 8/10-bit 11-channel ADC, dual comparators, 8× 16-bit timers, RTC2 with 99-year calendar and alarm, simplified SPI (CSI), up to 3 UART channels, simplified I²C, one full I²C interface, and a dedicated 15-channel capacitive touch sensing unit (CTSU) supporting self- and mutual-capacitance configurations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC with 3-stage pipeline; enables deterministic real-time control with low gate count |
| Flash / RAM | 16 KB code flash (1 KB erase blocks), 1 KB data flash (512 B blocks), 2 KB on-chip RAM - sufficient for compact firmware with persistent parameter storage |
| Supply Voltage | 2.4–5.5 V single supply - compatible with Li-ion, 3.3 V, and 5 V systems without level-shifting |
| Operating Temp | −40 to +85°C (A-grade) - qualified for consumer electronics and industrial HMI environments |
| Package | 24-pin HWQFN, 4.0 × 4.0 mm, 0.5-mm pitch, exposed die pad - enables high-density PCB layouts with thermal efficiency |
| Touch Sensing | 15-channel CTSU with self/mutual capacitance modes - supports up to 16 keys in matrix layout for robust front-panel interfaces |
| Timers & RTC | 8× 16-bit timer array channels, 12-bit interval timer, watchdog, and RTC2 with calendar/alarm/correction - eliminates need for external timekeeping ICs |
Pinout & Package
24-pin HWQFN (4.0 × 4.0 mm, 0.5-mm pitch) with exposed die pad requiring connection to a non-electrical PCB copper pour for thermal management.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00 | TOOLTxD / SO00 / TxD0 | Primary UART transmit output; also serves as serial array output and clocked serial interface TX |
| P01 | TOOLRxD / ANI0 / SI00 / RxD0 | UART receive input with analog channel 0 and serial array input - enables debug communication and sensor interfacing |
| P02 | PCLBUZ0 / ANI1 / VCOUT0 / TSCAP | Capacitive touch sense input with analog channel 1 and buzzer driver - direct connection to touch electrode |
| P125 | RESET / INTP1 | Active-low reset input with interrupt capability - ensures reliable power-on initialization and fault recovery |
| VDD / VSS | Power supply / Ground | Dual power pins support clean analog/digital separation; exposed pad must be thermally anchored |
| P41 | RTC1HZ / TS13 / TI03 / TO03 | Real-time clock 1 Hz output with touch channel 13 and timer I/O - provides precise timing reference for UI updates |
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 for extended battery life |
| Integrated capacitive touch | 15-channel CTSU with self/mutual modes eliminates external touch controller and reduces BOM cost by ≥$0.30 |
| On-chip oscillators | High-speed (1–16 MHz ±1.0%) and low-speed (32.768 kHz) oscillators remove need for external crystals in most applications |
| Robust debug interface | Single-wire TOOL interface (TOOL0/TOOLRxD/TOOLTxD) enables programming and real-time debugging with minimal pin count |
| Data flash endurance | 1,000,000 write/erase cycles at full VDD range (2.4–5.5 V) - supports frequent firmware parameter updates in field-deployed devices |
Applications
| Appliance Control Panel | Smart Thermostat Interface |
|---|---|
Use Scenario: Touch-enabled front panel for microwave ovens or washing machines with LED feedback and motor control. IC Role / Device Role / Timing Role: Main system controller executing UI logic, reading capacitive keys, driving buzzer, managing motor PWM via timer outputs, and communicating with power stage over UART. Use Value: Single-chip solution replaces discrete MCU + touch controller + RTC, reducing PCB area by 35% and eliminating 3 external ICs. | Use Scenario: Wall-mounted HVAC thermostat with ambient temperature/humidity sensing and Wi-Fi module communication. IC Role / Device Role / Timing Role: Sensor hub aggregating ADC readings (temp/humidity), maintaining accurate wall-clock time via RTC2, and buffering UART data to wireless module. Use Value: Integrated 11-channel ADC and calendar RTC eliminate external precision references, enabling ±0.5°C sensing accuracy and 1-second timekeeping without crystal calibration. |
| Industrial HMI Keypad | Consumer IoT Remote Control |
Use Scenario: Ruggedized push-button replacement for factory HMIs using mutual-capacitance matrix keys. IC Role / Device Role / Timing Role: Dedicated touch processor scanning 16-key matrix via CTSU, debouncing inputs, and sending key events over simplified SPI to host PLC controller. Use Value: Mutual-capacitance mode rejects water/glove interference, achieving >99.9% key detection reliability in dusty/wet environments. | Use Scenario: Battery-powered universal remote with backlit touch keys and IR LED driver. IC Role / Device Role / Timing Role: Low-power system manager handling touch wake-up, IR pulse generation via timer, and battery voltage monitoring via ADC channel ANI0. Use Value: 61 µA/MHz active current and STOP-mode current <0.5 µA extend CR2032 battery life to >18 months with daily use. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F1217CGNA#40 | Same package and pinout; industrial-grade (−40 to +105°C), G-suffix; identical peripherals and memory | Required for extended-temperature industrial equipment where ambient exceeds +85°C | Select when operating environment exceeds consumer-grade thermal limits but no hardware redesign is desired |
| R5F1214AANA#40 | 16-pin HWQFN (3 × 3 mm); same A-grade temp, 16 KB flash, 2 KB RAM, but only 8 I/O pins and no TS13/TS14 touch channels | Suitable for space-constrained designs with ≤8 touch keys and minimal peripheral needs | Choose for lower-cost, smaller-footprint implementations where 15-channel CTSU and 24-pin I/O headroom are unnecessary |
Compared with R5F1217CGNA#40, the R5F1217AANA#40 trades extended temperature rating for lower cost and qualification scope; compared with R5F1214AANA#40, it adds 8 additional I/O pins, two extra touch channels (TS13/TS14), and enhanced timer/communication flexibility - justifying its use in feature-rich HMI designs.
Availability
R5F1217AANA#40 is available at Aetrix Electronics and suitable for appliance control panels, smart thermostats, industrial HMIs, and consumer IoT remotes requiring stable component supply across production lifecycles.
Supply support for R5F1217AANA#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 solutions for automotive, industrial, and IoT markets.
The RL78/G16 product line delivers true low-power performance for human-machine interface applications, integrating capacitive touch sensing, real-time clock, and multiple serial interfaces into compact QFN packages.
FAQ
What is the maximum operating frequency of the R5F1217AANA#40?
The R5F1217AANA#40 supports a maximum CPU operating frequency of 16 MHz using its high-speed on-chip oscillator. This yields a minimum instruction execution time of 0.0625 µs under those conditions. The oscillator offers selectable frequencies (1/2/4/8/16 MHz) with ±1.0% accuracy across the full VDD (2.4–5.5 V) and temperature (−20 to +85°C) range specified for the A-grade R5F1217AANA#40.
Does the R5F1217AANA#40 support in-system programming via its TOOL interface?
Yes, the R5F1217AANA#40 supports full in-system programming and debugging through its single-wire TOOL interface (pins P40, P01, P00). This interface enables flash programming, breakpoint setting, and real-time variable inspection without requiring external debug probes beyond a standard Renesas E2 or E2 Lite emulator. The R5F1217AANA#40 does not require boot ROM swapping for firmware updates.
How many capacitive touch channels does the R5F1217AANA#40 support, and what configurations are available?
The R5F1217AANA#40 integrates a 15-channel capacitive touch sensing unit (CTSU) supporting both self-capacitance (up to 15 independent keys) and mutual-capacitance (matrix configuration supporting up to 16 keys) modes. Pin assignments include dedicated TSCAP (P02), TS00–TS14 (P01, P03–P07, P16–P17, P20–P23, P41–P43), enabling flexible electrode layout without external components.
What is the data flash endurance specification for the R5F1217AANA#40?
The R5F1217AANA#40 specifies 1,000,000 write/erase cycles (typical) for its 1 KB data flash memory across the full operating voltage range of 2.4–5.5 V. Each rewrite unit is 32 bits, and blocks are 512 bytes. Background operation (BGO) is not supported - code execution halts during data flash writes, requiring careful scheduling in real-time applications.
Can the R5F1217AANA#40 operate from a 3.3 V supply while maintaining full peripheral functionality?
Yes, the R5F1217AANA#40 operates fully across 2.4–5.5 V, including standard 3.3 V systems. All peripherals - including the 8/10-bit ADC (with internal 0.815 V reference), comparators, CTSU, UART, CSI, I²C, timers, and RTC2 - are guaranteed functional at 3.3 V. The high-speed oscillator maintains ±1.0% accuracy at 3.3 V within the −20 to +85°C range specified for the A-grade R5F1217AANA#40.
R5F1217AANA#40 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 24-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:
- 21
- 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 11x8/10b
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F1217AANA#40 FAQ
1.How can I place an order for R5F1217AANA#40 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F1217AANA#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 R5F1217AANA#40 reliable?
The price and inventory of R5F1217AANA#40 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F1217AANA#40 is usually 5 days.
3.What payment methods are accepted for R5F1217AANA#40?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F1217AANA#40 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F1217AANA#40?
R5F1217AANA#40 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F1217AANA#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 R5F1217AANA#40?
For technical support, including R5F1217AANA#40 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F1217AANA#40 requirements.
6.How does Aetrix verify that R5F1217AANA#40 is sourced from the original manufacturer or authorized distributors?
All R5F1217AANA#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 R5F1217AANA#40 meets industry standards.
7.What is the process for return or replacement of R5F1217AANA#40?
All R5F1217AANA#40 units undergo pre-shipment inspection (PSI). If there is an issue with R5F1217AANA#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 R5F1217AANA#40 part is unused and in its original packaging.
Return procedure for R5F1217AANA#40:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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