Renesas R5F1214CASP#10
- Part No.:
- R5F1214CASP#10
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 16-SSOP (0.173", 4.40mm Width)
- Datasheet:
-
R5F1214CASP#10.pdf
- Description:
- 16BIT MCU RL78/G16 32K 16LSSOP -
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F1214CASP#10 from Renesas Electronics is a 16-pin, 32 KB flash RL78/G16 16-bit microcontroller with 2 KB RAM, integrated capacitive touch sensing (15-channel CTSU), 10-bit A/D converter (11-channel), and real-time clock with calendar function. It operates from 2.4–5.5 V and supports −40°C to +85°C ambient temperature for consumer applications.
For engineers reviewing the R5F1214CASP#10 datasheet, R5F1214CASP#10 pinout, R5F1214CASP#10 application, or R5F1214CASP#10 equivalent, this page delivers verified electrical specs, validated SSOP-16 pin mapping, industrial-grade low-power timing architecture, and direct alternative options for cost-sensitive home appliance and sensor node designs.
Technical Context
The R5F1214CASP#10 implements the RL78 CPU core with a 3-stage pipeline, supporting 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 unit (8 channels), watchdog timer, and real-time clock 2 with 99-year calendar and alarm functions.
Its analog subsystem includes an 8/10-bit A/D converter with internal reference voltage (0.815 V TYP.), temperature sensor, and selectable IVREF0/IVREF1 inputs. The CTSU supports both self-capacitance (up to 15 keys) and mutual capacitance (up to 16 keys in matrix configuration) without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and 1 MB address space |
| Flash Memory | 32 KB code flash (1 KB block size); supports self-programming without boot swap |
| Data Flash | 1 KB data flash (512 B block size); 1,000,000 rewrite cycles; 32-bit rewrite unit |
| Operating Voltage | 2.4 V to 5.5 V single supply; enables direct battery operation (e.g., 3×AA or Li-ion) |
| Temperature Range | −40°C to +85°C (A-grade); qualified for consumer electronics and white goods |
| Package | 16-pin plastic SSOP (4.4 × 5.0 mm, 0.65-mm pitch); RoHS-compliant, lead-free |
| Low-Power Modes | HALT and STOP modes; ultra-low power consumption platform (61 µA/MHz at TA = 125°C) |
Pinout & Package
16-pin plastic SSOP (4.4 × 5.0 mm, 0.65-mm pitch) package with exposed die pad not electrically connected; requires thermal pad soldering to PCB ground plane for thermal management.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00 | TOOLTxD / SO00 / TxD0 / RTC1HZ | UART transmit output or serial clock output; RTC 1-Hz signal source for timekeeping |
| P01 | TOOLRxD / ANI0 / TS00 / SI00 / RxD0 / SDA00 | UART receive input with analog channel 0 and touch sensing; supports I²C slave communication |
| P02 | PCLBUZ0 / ANI1 / VCOUT0 / TSCAP / TI01 / TO01 / SCK00 / SCL00 | Capacitive touch sense input with buzzer control; SPI/I²C master clock; timer I/O |
| P03 | ANI2 / IVCMP0 / TS03 / TO00 / RxD1 | Analog input 2 with comparator reference; touch channel 3; UART receive on secondary interface |
| P04 | ANI3 / IVREF0 / TS04 / TI06 / TO06 / TxD1 | Reference voltage input for A/D; touch channel 4; UART transmit on secondary interface |
| P05 | ANI4 / IVCMP1 / TS05 / SO11 | Analog input 4 with second comparator; touch channel 5; SPI slave output |
| P06 | ANI5 / IVREF1 / TS06 / SI11 / SCLA0 | Second A/D reference input; touch channel 6; I²C slave input; primary I²C bus address line |
| P07 | ANI6 / VCOUT1 / TS07 / TI04 / TO04 / SDAA0 | Analog input 6 with second voltage output; touch channel 7; I²C alternate address line |
| P40 | TOOL0 / INTP2 / PCLBUZ0 / TI01 / TO01 | On-chip debug interface pin; external interrupt 2; shared with buzzer and timer I/O |
| P41 | RTC1HZ / TS13 / TI03 / TO03 / SCK20 / SCL20 | Dedicated RTC 1-Hz output; touch channel 13; timer I/O; secondary SPI/I²C clock |
| P121 | X1 / XT1 / TI07 / TO07 / INTP3 / INTP4 / INTP5 | Crystal oscillator input; supports 32.768 kHz watch crystal; multi-interrupt capable |
| P122 | X2 / XT2 / EXCLK / EXCLKS / TI05 / TO05 / INTP2 | Crystal oscillator output or external clock input; supports high-frequency crystal up to 20 MHz |
| P125 | RESET / INTP1 / VCOUT0 / VCOUT1 / INTP0 / SI11 | Active-low reset input with dual voltage outputs; supports hardware reset and interrupt chaining |
| P137 | INTP0 / TI00 | External interrupt 0 with timer input capture; dedicated wake-up source from STOP mode |
| VDD | Power Supply | Primary 2.4–5.5 V supply; decoupling capacitor required within 10 mm of pin |
| VSS | Ground | Digital ground reference; must be connected to solid ground plane for noise immunity |
Key Features
| Feature | Design Value |
|---|---|
| Capacitive Touch Sensing Unit (CTSU) | 15-channel self-capacitance or 16-key mutual-capacitance matrix; no external RC components needed |
| Real-Time Clock 2 (RTC2) | Full 99-year calendar with alarm, clock correction, and independent 32.768 kHz oscillator domain |
| High-Speed On-Chip Oscillator | Selectable 1–16 MHz frequencies; ±1.0% accuracy over −20°C to +85°C; eliminates external crystal |
| Low-Power Operation | HALT/STOP modes reduce current to µA range; 61 µA/MHz active current enables battery life >5 years |
| Serial Interfaces | Up to 3 CSI (SPI-compatible), 3 UART, 3 simplified I²C, and 1 full I²C - all configurable via PIOR registers |
| On-Chip Debug | Fully integrated debug interface (TOOL0/TOOLRxD/TOOLTxD) with no external debugger required |
Applications
| Home Appliance Control Panel | Industrial Sensor Node |
|---|---|
|
Use Scenario: Touch-enabled microwave oven control panel with LED display and motor control. IC Role / Device Role / Timing Role: Main system controller executing UI logic, reading capacitive buttons, driving buzzer feedback, and managing cooking timers. Use Value: Integrated CTSU eliminates external touch IC; RTC2 provides accurate cooking duration tracking; 32 KB flash accommodates firmware updates. |
Use Scenario: Battery-powered temperature/humidity sensor node transmitting data via UART to gateway. IC Role / Device Role / Timing Role: Data acquisition engine sampling A/D channels, performing local calibration, and entering STOP mode between readings. Use Value: 61 µA/MHz active current and STOP mode extend 2×AA battery life beyond 3 years; built-in temperature sensor reduces BOM count. |
| Smart Lighting Dimmer | Consumer IoT Remote |
|
Use Scenario: DALI-compatible LED dimmer with touch slider and ambient light sensing. IC Role / Device Role / Timing Role: PWM generator for phase-cut dimming, touch slider interpreter, and ambient light A/D conversion. Use Value: 16-bit timer array enables precise 0.1% dimming resolution; 11-channel A/D supports multi-sensor fusion without mux. |
Use Scenario: Bluetooth LE remote with capacitive touch keys and vibration feedback. IC Role / Device Role / Timing Role: Touch key scanner, buzzer/PCLBUZ0 driver, and UART interface to BLE SoC. Use Value: Single-chip solution replaces discrete touch controller + MCU; PCLBUZ0 pin drives piezo directly without driver transistor. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F1214AASP#10 | 16 KB code flash (vs. 32 KB); identical pinout, peripherals, and package | Suitable for simpler firmware with smaller memory footprint; lower cost where feature set permits | Select when application firmware fits ≤16 KB and cost sensitivity outweighs future upgrade headroom |
| R5F1214CGSP#10 | Same 32 KB flash but rated for −40°C to +105°C (G-grade); identical SSOP-16 pinout | Required for industrial environments exceeding +85°C ambient (e.g., HVAC control boards) | Choose for extended temperature operation; otherwise R5F1214CASP#10 suffices for consumer-grade use |
Compared with R5F1214AASP#10, the R5F1214CASP#10 provides double flash capacity for complex UI or OTA update support; compared with R5F1214CGSP#10, it trades industrial temperature margin for lower cost in consumer applications where ambient stays ≤+85°C.
Availability
R5F1214CASP#10 is available at Aetrix Electronics and suitable for home appliance control panels, industrial sensor nodes, smart lighting dimmers, and consumer IoT remotes requiring stable component supply across multi-year production cycles.
Supply support for R5F1214CASP#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 solutions for automotive, industrial, and IoT markets.
The RL78/G16 product line delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive, battery-operated, and touch-enabled consumer and industrial applications.
FAQ
What is the maximum operating frequency of the R5F1214CASP#10?
The R5F1214CASP#10 supports up to 16 MHz operation using its high-speed on-chip oscillator. This frequency is factory-trimmed and achieves ±1.0% accuracy across −20°C to +85°C, eliminating need for external crystal while maintaining timing precision for UART and timer-based functions in the R5F1214CASP#10.
Does the R5F1214CASP#10 support in-circuit debugging without additional hardware?
Yes, the R5F1214CASP#10 integrates a full on-chip debug interface using pins P40 (TOOL0), P01 (TOOLRxD), and P00 (TOOLTxD). No external debugger or SWD/JTAG adapter is required - standard UART-to-USB bridge cables suffice for firmware download and real-time debugging of the R5F1214CASP#10.
Can the R5F1214CASP#10 drive a piezo buzzer directly?
Yes, the R5F1214CASP#10 features a dedicated PCLBUZ0 pin (available on P02 and P40) that provides programmable buzzer drive capability with internal oscillation. It can directly drive common 3–5 V piezo elements without external transistors or drivers, simplifying bill-of-materials for audio feedback in the R5F1214CASP#10.
How many capacitive touch channels does the R5F1214CASP#10 support?
The R5F1214CASP#10 integrates a 15-channel Capacitive Touch Sensing Unit (CTSU) supporting both self-capacitance (15 independent keys) and mutual capacitance (up to 16 keys in matrix configuration). All channels operate without external RC components, enabling robust touch interfaces in compact designs using the R5F1214CASP#10.
Is the R5F1214CASP#10 pin-compatible with other RL78/G16 variants in SSOP-16 package?
Yes, all RL78/G16 devices in the 16-pin SSOP package - including R5F1214CASP#10, R5F1214AASP#10, and R5F1214CGSP#10 - share identical pinouts and peripheral mappings. Firmware and PCB layouts are interchangeable across these variants, allowing seamless migration based on flash size or temperature grade requirements for the R5F1214CASP#10.
R5F1214CASP#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:
- 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 7x8/10b
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F1214CASP#10 FAQ
1.How can I place an order for R5F1214CASP#10 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F1214CASP#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 R5F1214CASP#10 reliable?
The price and inventory of R5F1214CASP#10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F1214CASP#10 is usually 5 days.
3.What payment methods are accepted for R5F1214CASP#10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F1214CASP#10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F1214CASP#10?
R5F1214CASP#10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F1214CASP#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 R5F1214CASP#10?
For technical support, including R5F1214CASP#10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F1214CASP#10 requirements.
6.How does Aetrix verify that R5F1214CASP#10 is sourced from the original manufacturer or authorized distributors?
All R5F1214CASP#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 R5F1214CASP#10 meets industry standards.
7.What is the process for return or replacement of R5F1214CASP#10?
All R5F1214CASP#10 units undergo pre-shipment inspection (PSI). If there is an issue with R5F1214CASP#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 R5F1214CASP#10 part is unused and in its original packaging.
Return procedure for R5F1214CASP#10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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