Renesas R5F1216AASP#30
- Part No.:
- R5F1216AASP#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 20-LSSOP (0.173", 4.40mm Width)
- Datasheet:
-
R5F1216AASP#30.pdf
- Description:
- MCU:RL78
- Quantity:
- Payment:

- Shipping:

Inventory:1,434
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Product details
Overview
R5F1216AASP#30 from Renesas Electronics is a 20-pin, 16 KB flash RL78/G16 16-bit microcontroller with integrated capacitive touch sensing (15-channel CTSU), 10-bit A/D converter (11-channel), and real-time clock (99-year calendar). It operates from 2.4–5.5 V, supports HALT/STOP low-power modes, and targets cost-sensitive industrial HMI and appliance control applications.
For engineers reviewing the R5F1216AASP#30 datasheet, R5F1216AASP#30 pinout, R5F1216AASP#30 application, or R5F1216AASP#30 equivalent, key selection criteria include its LSSOP-20 package, consumer-grade temperature range (−40°C to +85°C), 16 KB code flash / 2 KB RAM configuration, and native support for touch UI, UART/SPI/I²C interfaces, and RTC alarm functions.
Technical Context
The R5F1216AASP#30 implements the RL78 CPU core with a 3-stage pipeline CISC architecture, enabling 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 on-chip RAM.
Peripheral integration includes eight 16-bit timers, one 12-bit interval timer, watchdog timer, RTC2 with calendar/alarm/correction, 10-bit A/D converter with internal reference (0.815 V) and temperature sensor, two comparators, and a dedicated capacitive touch sensing unit supporting self- and mutual-capacitance configurations across up to 16 keys.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline; enables deterministic timing for real-time control loops. |
| Flash Memory | 16 KB code flash (1 KB erase blocks); sufficient for mid-complexity firmware with bootloader space. |
| Data Flash | 1 KB data flash (512 B blocks, 1,000,000 rewrites); supports nonvolatile parameter storage without external EEPROM. |
| Operating Voltage | 2.4–5.5 V single supply; compatible with standard 3.3 V and 5 V system rails without level-shifting. |
| Temperature Range | −40°C to +85°C (A-grade); validated for consumer and light-industrial ambient environments. |
| Capacitive Touch | 15-channel CTSU with self/mutual capacitance modes; enables robust touch buttons/sliders without external ICs. |
| A/D Converter | 10-bit resolution, 11 analog inputs, internal 0.815 V reference; supports direct sensor interfacing (e.g., thermistors, potentiometers). |
Pinout & Package
Package: 20-pin plastic LSSOP (4.4 × 6.5 mm, 0.65-mm pitch), tray packaging (#30 specification), consumer-grade thermal rating (−40°C to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00 | TOOLTxD / SO00 / TxD0 | Primary UART transmit output; also serves as serial clock output or general-purpose digital output. |
| P01 | TOOLRxD / ANI0 / TS00 | UART receive input with analog input (ANI0) and touch sense channel (TS00) capability. |
| P02 | PCLBUZ0 / ANI1 / VCOUT0 / TSCAP | Programmable buzzer output, analog input, voltage comparator output, and dedicated touch sense capacitor terminal. |
| P03 | ANI2 / IVCMP0 / TS03 / TO00 | Analog input, comparator input, touch sense channel, and timer output - multiplexed for compact HMI design. |
| P04 | ANI3 / IVREF0 / TS04 / TI06 / TO06 | Internal voltage reference input, analog input, touch channel, and timer I/O - enables precision analog sensing and timing. |
| P05 | ANI4 / IVCMP1 / TS05 / SO11 | Second comparator input, analog input, touch channel, and SPI output - supports dual-sensor or dual-touch zone designs. |
| P06 | ANI5 / IVREF1 / TS06 / SI11 | Second internal reference input, analog input, touch channel, and SPI input - allows differential or ratiometric measurements. |
| P07 | ANI6 / VCOUT1 / TS07 / TI04 / TO04 | Analog input, second comparator output, touch channel, and timer I/O - expands analog/touch/timing integration. |
| P20 | ANI10 / TS11 / SI20 / RxD2 | 10th analog input, touch channel, secondary SPI input, and secondary UART receive - extends peripheral flexibility. |
| P21 | ANI9 / TS10 / SO20 / TxD2 | 9th analog input, touch channel, secondary SPI output, and secondary UART transmit - enables dual-serial communication paths. |
| P22 | ANI8 / TS09 | 8th analog input and touch channel - increases analog sensing or touch key count without external components. |
| P23 | ANI7 / TS08 | 7th analog input and touch channel - supports multi-zone touch panels or multi-sensor monitoring. |
| P40 | TOOL0 / INTP2 / TI01 / TO01 | On-chip debugger interface pin, external interrupt input, and timer I/O - simplifies development and event-driven control. |
| P41 | RTC1HZ / TS13 / TI03 / TO03 | Real-time clock 1 Hz output, touch channel, and timer I/O - provides precise timekeeping and synchronized touch scanning. |
| P121 | X1 / XT1 / TI07 / TO07 | Primary crystal oscillator input, supporting external 32.768 kHz RTC crystal or higher-frequency clocks for timing accuracy. |
| P122 | X2 / XT2 / EXCLK / TI05 / TO05 | Crystal oscillator output or external clock input, enabling flexible clock source selection for system synchronization. |
| P125 | RESET / INTP1 / VCOUT0 / INTP0 | Active-low reset input with interrupt capability and comparator output - ensures reliable power-on initialization and fault recovery. |
| P137 | INTP0 / TI00 | Dedicated external interrupt input and timer input - supports fast response to critical system events. |
| VDD | Power Supply | Single 2.4–5.5 V supply rail; powers all digital, analog, and touch circuitry with integrated voltage regulation. |
| VSS | Ground | Common reference for all analog and digital domains; requires low-impedance PCB connection for noise immunity. |
Key Features
| Feature | Design Value |
|---|---|
| Low-Power Operation | Halt/Stop modes reduce current consumption significantly; enables battery-powered operation with extended runtime. |
| Integrated Capacitive Touch | 15-channel CTSU eliminates need for external touch controller ICs, reducing BOM cost and PCB area in HMI designs. |
| On-Chip Real-Time Clock | RTC2 with 99-year calendar, alarm, and correction functions enables time-stamped logging and scheduled operations without external RTC. |
| Self-Programming Flash | Code flash supports in-application programming (no boot swap), allowing field firmware updates via UART or other interfaces. |
| Multiplexed Peripheral Pins | Each pin supports multiple functions (e.g., P01 = UART Rx / ANI0 / TS00); maximizes I/O utility in space-constrained LSSOP-20 layout. |
| High-Accuracy On-Chip Oscillator | 16 MHz oscillator with ±1.0% accuracy (−20°C to +85°C) reduces need for external crystals in non-critical timing applications. |
Applications
| Home Appliance Control Panel | Industrial Sensor Node |
|---|---|
Use Scenario: Touch-enabled microwave oven or washing machine control panel with LED feedback and motor control. IC Role / Device Role / Timing Role: Main system controller executing UI logic, reading capacitive touch keys, driving buzzer/LEDs, and managing motor PWM via timer outputs. Use Value: Integrated CTSU and 16 KB flash eliminate external touch IC and provide ample space for feature-rich firmware with OTA update capability. | Use Scenario: Battery-powered environmental sensor node measuring temperature, humidity, and air quality in factory settings. IC Role / Device Role / Timing Role: Data acquisition controller sampling analog sensors via 10-bit ADC, timestamping readings with RTC2, and transmitting via UART to gateway. Use Value: Low-power STOP mode and 2.4–5.5 V operation enable multi-year battery life; internal reference and temp sensor reduce external component count. |
| Smart Thermostat Interface | Consumer IoT Remote Control |
Use Scenario: Wall-mounted thermostat with capacitive touch sliders, ambient temperature sensing, and display backlight control. IC Role / Device Role / Timing Role: HMI processor handling touch gestures, reading ANI0–ANI6 for temperature/humidity, and generating PWM for display dimming. Use Value: 11-channel ADC and 15-channel CTSU support full-featured UI in single-chip solution; LSSOP-20 footprint fits slim mechanical enclosures. | Use Scenario: IR or BLE remote control with touch-sensitive navigation pad and button feedback. IC Role / Device Role / Timing Role: Touch interface manager detecting swipe/gesture on CTSU, generating IR carrier via PCLBUZ0, and managing low-power sleep/wake cycles. Use Value: PCLBUZ0 hardware buzzer driver and ultra-low-power HALT mode extend coin-cell battery life beyond 12 months. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F1216CGSP | Same 20-pin SSOP package, 16 KB flash, but rated for −40°C to +105°C (G-grade industrial) | Required for extended-temperature industrial environments where R5F1216AASP#30's 85°C max is insufficient | Select when operating ambient exceeds +85°C or long-term reliability under thermal stress is critical |
| R5F1214AASP | 16-pin LSSOP variant with identical 16 KB flash, 2 KB RAM, and CTSU, but only 4 analog inputs and no RTC2 | Suitable for simpler HMI or control tasks without calendar/timekeeping or high-channel-count analog sensing | Choose for cost-optimized designs with fewer I/O requirements and no RTC dependency |
Compared with R5F1216CGSP, the R5F1216AASP#30 trades extended temperature tolerance for lower cost and consumer qualification; compared with R5F1214AASP, it adds RTC2, 7 extra analog inputs, and 2 additional touch channels - justifying its use in time-aware, sensor-rich applications.
Availability
R5F1216AASP#30 is available at Aetrix Electronics and suitable for home appliance control panels, industrial sensor nodes, smart thermostats, and consumer IoT remotes requiring stable component supply and long-term production continuity.
Supply support for R5F1216AASP#30 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 16-bit MCUs with integrated capacitive touch and analog peripherals, designed specifically for cost-sensitive, battery-operated, and HMI-intensive embedded systems.
FAQ
What is the maximum operating frequency of the R5F1216AASP#30?
The R5F1216AASP#30 supports a maximum system clock frequency of 16 MHz using its high-speed on-chip oscillator. This yields a minimum instruction execution time of 0.0625 μs. The device also supports lower-frequency operation down to 32.768 kHz for ultra-low-power RTC and standby modes, with corresponding instruction time of 30.5 μs.
Does the R5F1216AASP#30 support in-system programming (ISP)?
Yes, the R5F1216AASP#30 supports self-programming of its 16 KB code flash memory via on-chip debug interface or application firmware. It does not include boot swap functionality, so firmware updates require careful sector management, but background operation during data flash writes is not supported - code execution halts during data flash rewriting.
How many capacitive touch channels does the R5F1216AASP#30 support?
The R5F1216AASP#30 integrates a dedicated Capacitive Touch Sensing Unit (CTSU) supporting up to 15 channels in self-capacitance mode (one key per pin) or up to 16 keys in mutual-capacitance matrix configuration. All 15 CTSU channels are accessible on its 20-pin LSSOP package, with pins P01–P07, P20–P23, and P40–P41 assigned to touch sensing functions.
What is the temperature grade of the R5F1216AASP#30?
The R5F1216AASP#30 is an A-grade device qualified for operation from −40°C to +85°C, targeting consumer and light-industrial applications. Its part number suffix "A" explicitly denotes this consumer temperature range, distinguishing it from G-grade (−40°C to +105°C) and M-grade (−40°C to +125°C) variants in the RL78/G16 family.
Can the R5F1216AASP#30 operate from a 3.3 V supply?
Yes, the R5F1216AASP#30 operates over a wide supply range of 2.4 V to 5.5 V, fully encompassing standard 3.3 V system rails. At 3.3 V, it maintains full functionality including 16 MHz operation, 10-bit ADC performance, CTSU sensitivity, and RTC accuracy - no derating or functional limitation applies within this voltage window.
R5F1216AASP#30 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 20-LSSOP (0.173", 4.40mm Width)
- Series:
- RL78/G16
- Packaging:
- Tube
- 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:
- 17
- 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:
R5F1216AASP#30 FAQ
1.How can I place an order for R5F1216AASP#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F1216AASP#30 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 R5F1216AASP#30 reliable?
The price and inventory of R5F1216AASP#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F1216AASP#30 is usually 5 days.
3.What payment methods are accepted for R5F1216AASP#30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F1216AASP#30 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F1216AASP#30?
R5F1216AASP#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F1216AASP#30 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 R5F1216AASP#30?
For technical support, including R5F1216AASP#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F1216AASP#30 requirements.
6.How does Aetrix verify that R5F1216AASP#30 is sourced from the original manufacturer or authorized distributors?
All R5F1216AASP#30 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 R5F1216AASP#30 meets industry standards.
7.What is the process for return or replacement of R5F1216AASP#30?
All R5F1216AASP#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F1216AASP#30, 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 R5F1216AASP#30 part is unused and in its original packaging.
Return procedure for R5F1216AASP#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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