Renesas R5F1214AASP#10
- Part No.:
- R5F1214AASP#10
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 16-SSOP (0.173", 4.40mm Width)
- Datasheet:
-
R5F1214AASP#10.pdf
- Description:
- 16BIT MCU RL78/G16 16K 16LSSOP -
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F1214AASP#10 from Renesas Electronics is a 16-pin, 16 KB flash RL78/G16 8-bit microcontroller with 2 KB RAM, 10-bit A/D converter (up to 11 channels), capacitive touch sensing unit (15 channels), and integrated real-time clock (99-year calendar). It operates from 2.4 V to 5.5 V and supports industrial temperature range (−40°C to +105°C) for embedded control in appliance user interfaces and sensor-based systems.
For engineers reviewing the R5F1214AASP#10 datasheet, R5F1214AASP#10 pinout, R5F1214AASP#10 application, or R5F1214AASP#10 equivalent, key selection criteria include its LSSOP-16 package, 16 KB code flash with self-programming, CTSU support for touch buttons, and dual serial interface capability (UART + simplified I²C) in a low-power RL78 core architecture.
Technical Context
The R5F1214AASP#10 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). It integrates a 16-bit timer array (8 channels), watchdog timer, and real-time clock with alarm and correction functions.
Its analog subsystem includes an 8/10-bit A/D converter with internal reference voltage (0.815 V), temperature sensor, and selectable input channels (ANI0–ANI6), alongside two comparator channels supporting high/low-speed modes and external or internal reference selection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 8-bit CISC with 3-stage pipeline; enables deterministic timing for real-time control loops |
| Flash Memory | 16 KB code flash, 1 KB data flash; supports in-application programming without boot swap |
| RAM | 2 KB on-chip RAM; sufficient for stack, variables, and small buffers in resource-constrained designs |
| A/D Converter | 10-bit resolution, up to 11 analog inputs (ANI0–ANI6); includes internal 0.815 V reference and temperature sensor |
| Capacitive Touch | 15-channel CTSU; supports self-capacitance (15 keys) or mutual capacitance (up to 16 keys in matrix) |
| Operating Voltage | 2.4 V to 5.5 V single supply; compatible with standard battery and regulated rail systems |
| Temperature Range | −40°C to +105°C (G-grade); qualified for industrial ambient conditions |
| Package | 16-pin LSSOP (4.4 × 5.0 mm, 0.65-mm pitch); surface-mount compatible with standard reflow profiles |
Pinout & Package
16-pin plastic SSOP (4.4 × 5.0 mm, 0.65-mm pitch), RoHS-compliant, lead-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00 | TOOLTxD / SO00 / TxD0 | Primary UART transmit output; also serves as serial array output and tool interface TX |
| P01 | TOOLRxD / ANI0 / RxD0 / SDA00 | UART receive input with analog channel 0 and I²C data line; enables debug and sensor interface sharing |
| P02 | PCLBUZ0 / ANI1 / VCOUT0 / TSCAP | Capacitive touch sense input with analog channel 1 and buzzer output; dedicated CTSU pin |
| P03 | ANI2 / IVCMP0 / RxD1 / TO00 | Analog input 2 with comparator reference and secondary UART RX; supports dual serial communication |
| P04 | ANI3 / IVREF0 / TxD1 / TI01/TO01 | Analog input 3 with internal reference and secondary UART TX; shares timer I/O for PWM generation |
| P05 | ANI4 / IVCMP1 / SO11 | Analog input 4 with second comparator reference and serial array output; expands analog monitoring capability |
| P06 | ANI5 / IVREF1 / SI11 / SCLA0 | Analog input 5 with second internal reference and I²C clock line; enables dual I²C bus configuration |
| P07 | ANI6 / VCOUT1 / SDAA0 | Analog input 6 with second voltage output and I²C data line; supports multi-sensor I²C slave addressing |
| P40 | TOOL0 / INTP2 / TI01/TO01 | Debug interface input with external interrupt and timer I/O; used for programming and event triggering |
| P41 | RTC1HZ / TS13 / TI03/TO03 | Real-time clock 1 Hz output with touch channel 13 and timer I/O; provides precise timekeeping and HMI feedback |
| P121 | X1 / XT1 / TI07/TO07 | Crystal oscillator input for external 32.768 kHz or higher frequency; enables accurate RTC and system timing |
| P122 | X2 / XT2 / EXCLK / TI05/TO05 | Crystal oscillator output or external clock input; supports crystal or ceramic resonator configurations |
| P125 | RESET / INTP1 / VCOUT0 / VCOUT1 | Active-low reset with interrupt and dual voltage outputs; ensures reliable startup and power monitoring |
| P137 | INTP0 / TI00 | External interrupt 0 with timer input; primary wake-up source from standby modes |
| VDD | Power Supply | Core and I/O supply (2.4–5.5 V); decoupling required per datasheet layout guidelines |
| VSS | Ground | Digital ground reference; must be connected to PCB ground plane with low-impedance path |
Key Features
| Feature | Design Value |
|---|---|
| Low-power operation | 61 µA/MHz active current at TA = 125°C; extends battery life in portable and remote sensors |
| Halt and Stop modes | Sub-µA standby current; enables rapid wake-up from external interrupts or RTC alarms |
| On-chip debug function | Single-wire debug interface via P00/P01; eliminates need for dedicated debug header in space-constrained layouts |
| Self-programmable flash | 16 KB code flash writable in-system without external programmer; supports firmware updates in field-deployed units |
| Capacitive touch sensing unit (CTSU) | 15-channel hardware-accelerated touch engine; reduces CPU load and improves button response consistency |
| Real-time clock with calendar | 99-year calendar, alarm, and auto-correction; eliminates need for external RTC IC in time-stamped logging applications |
Applications
| Home Appliance Control Panel | Industrial Sensor Node |
|---|---|
Use Scenario: Touch-enabled front panel for microwave oven or washing machine with LED indicators and buzzer feedback. IC Role / Device Role / Timing Role: Main controller executing UI logic, driving capacitive touch keys, managing buzzer output (PCLBUZ0), and updating display via UART or SPI. Use Value: Integrated CTSU and 16 KB flash eliminate external touch controller and reduce BOM count; RTC enables cooking timers and cycle scheduling. | Use Scenario: Battery-powered temperature/humidity sensor node transmitting data over UART to gateway. IC Role / Device Role / Timing Role: Sensor interface MCU acquiring analog readings (ANI0–ANI6), performing local calibration, and transmitting via UART (P00/P01). Use Value: 2.4–5.5 V operation supports wide battery range; HALT mode extends battery life to multi-year deployments. |
| Smart Thermostat Interface | Energy Metering Subsystem |
Use Scenario: Wall-mounted thermostat with capacitive touch buttons, LCD backlight control, and ambient temperature sensing. IC Role / Device Role / Timing Role: System-on-chip handling touch input (CTSU), analog temperature measurement (ANI0), buzzer alerts (PCLBUZ0), and real-time clock for scheduling. Use Value: Single-chip integration of touch, RTC, and analog sensing reduces PCB area and design complexity versus discrete solutions. | Use Scenario: Secondary controller in smart meter for tamper detection, LCD refresh, and non-volatile event logging. IC Role / Device Role / Timing Role: Dedicated subsystem MCU managing tamper switch inputs (INTP0–INTP9), storing events in data flash (1 KB), and maintaining time via RTC. Use Value: 1,000,000 write cycles in data flash ensure reliable long-term event logging; −40°C to +105°C rating suits outdoor meter enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F1214CGSP | G-grade (−40°C to +105°C) with identical 16 KB flash, 2 KB RAM, and LSSOP-16 package; differs only in temperature qualification and ordering suffix | Same functional scope but rated for industrial environments requiring extended thermal margin | Select when full industrial temperature compliance is mandatory and G-grade certification is required by end-equipment standards |
| R5F1214CASP | A-grade (−40°C to +85°C) with identical peripherals and memory; differs only in temperature range and part number suffix | Suitable for consumer appliances where ambient temperature remains within 85°C limit | Choose for cost-sensitive consumer products where industrial temperature range is unnecessary |
Compared with R5F1214CGSP and R5F1214CASP, the R5F1214AASP#10 offers identical functionality and pinout but is specifically ordered in tray packaging (#10) and qualified for the A-grade temperature range - making it optimal for high-volume consumer production with standard logistics handling.
Availability
R5F1214AASP#10 is available at Aetrix Electronics and suitable for home appliance control panels, industrial sensor nodes, smart thermostats, and energy metering subsystems requiring stable component supply across multi-year production cycles.
Supply support for R5F1214AASP#10 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 solutions for automotive, industrial, and IoT markets.
The RL78/G16 product line delivers ultra-low-power 8-bit MCUs optimized for cost-sensitive, battery-operated, and touch-enabled embedded applications requiring robust analog integration and long-term reliability.
FAQ
What is the maximum operating frequency of the R5F1214AASP#10?
The R5F1214AASP#10 supports a maximum system clock of 16 MHz using the high-speed on-chip oscillator. This yields a minimum instruction execution time of 0.0625 μs. External crystal oscillators (X1/X2) can also be used for precise timing, including 32.768 kHz for RTC operation. The RL78 core maintains consistent performance across its full voltage (2.4–5.5 V) and temperature (−40°C to +85°C) range.
Does the R5F1214AASP#10 support in-system programming (ISP)?
Yes, the R5F1214AASP#10 supports in-system programming via its on-chip debug interface using the TOOL0/TOOLRxD/TOOLTxD pins. It features self-programming capability for both code flash (16 KB) and data flash (1 KB) without requiring a boot swap function. Firmware updates can be performed in the field using standard Renesas flash programming tools and protocols.
How many capacitive touch channels does the R5F1214AASP#10 provide?
The R5F1214AASP#10 integrates a dedicated Capacitive Touch Sensing Unit (CTSU) with 15 channels. It supports both self-capacitance (up to 15 independent keys) and mutual capacitance (up to 16 keys in matrix configuration) using configurable transmit/receive pins. All CTSU functions are hardware-accelerated and require minimal CPU intervention during sensing cycles.
What serial communication interfaces are available on the R5F1214AASP#10?
The R5F1214AASP#10 provides up to three UART channels, one I²C interface (IICA), and up to three simplified I²C (SI²C) or CSI (SPI-compatible) channels. In the 16-pin LSSOP package, it implements UART0 (P00/P01), UART1 (P03/P04), and simplified I²C (SCLA0/SDAA0 on P06/P07), enabling concurrent communication with multiple peripherals such as displays, sensors, and host controllers.
Is the R5F1214AASP#10 pin-compatible with other RL78/G16 variants in the same package?
Yes, all RL78/G16 devices in the 16-pin LSSOP package - including R5F1214AASP#10, R5F1214CGSP, and R5F1214CASP - share identical pinouts and electrical characteristics. Memory size (16 KB vs. 32 KB) and temperature grade (A/G/M) do not affect pin assignment or signal mapping, enabling direct substitution in existing designs when functional requirements align.
R5F1214AASP#10 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 16-SSOP (0.173", 4.40mm Width)
- Series:
- RL78/G16
- Packaging:
- Tray
- 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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F1214AASP#10 FAQ
1.How can I place an order for R5F1214AASP#10 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F1214AASP#10 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 R5F1214AASP#10 reliable?
The price and inventory of R5F1214AASP#10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F1214AASP#10 is usually 5 days.
3.What payment methods are accepted for R5F1214AASP#10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F1214AASP#10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F1214AASP#10?
R5F1214AASP#10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F1214AASP#10 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 R5F1214AASP#10?
For technical support, including R5F1214AASP#10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F1214AASP#10 requirements.
6.How does Aetrix verify that R5F1214AASP#10 is sourced from the original manufacturer or authorized distributors?
All R5F1214AASP#10 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 R5F1214AASP#10 meets industry standards.
7.What is the process for return or replacement of R5F1214AASP#10?
All R5F1214AASP#10 units undergo pre-shipment inspection (PSI). If there is an issue with R5F1214AASP#10, 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 R5F1214AASP#10 part is unused and in its original packaging.
Return procedure for R5F1214AASP#10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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