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Renesas R5F1214CASP#50
- Part No.:
- R5F1214CASP#50
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 16-SSOP (0.173", 4.40mm Width)
- Datasheet:
-
R5F1214CASP#50.pdf
- Description:
- 16BIT MCU RL78/G16 32K 16LSSOP -
- Quantity:
- Payment:
- Shipping:
Inventory:4,103
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Product details
Overview
R5F1214CASP#50 from Renesas Electronics is a 16-pin, 32 KB flash RL78/G16 16-bit microcontroller with 2 KB RAM, integrated capacitive touch sensing unit (15 channels), 10-bit A/D converter (11-channel), and real-time clock with calendar function. It operates from 2.4 to 5.5 V and supports industrial temperature range (−40°C to +105°C), targeting low-power HMI and sensor interface applications in industrial control panels.
For engineers reviewing the R5F1214CASP#50 datasheet, R5F1214CASP#50 pinout, R5F1214CASP#50 application, or R5F1214CASP#50 equivalent, key selection criteria include its LSSOP-16 package compatibility, CTSU-based touch key support, RTC calendar functionality, and dual-voltage operation enabling direct battery-powered designs without external regulators.
Technical Context
The R5F1214CASP#50 implements the RL78 CPU core with a 3-stage pipeline CISC architecture, supporting instruction execution times from 0.0625 μs (16 MHz high-speed mode) to 30.5 μs (32.768 kHz ultra-low-speed mode). Its memory subsystem includes 32 KB code flash (1 KB block size), 1 KB data flash (512 B block), and 2 KB on-chip RAM.
Peripheral integration includes eight 16-bit timers, one 12-bit interval timer, watchdog timer, RTC2 with 99-year calendar and alarm, up to three simplified SPI/CSI channels, three UART channels, three simplified I²C channels, and one full I²C interface - all accessible via multiplexed pins on the 16-pin SSOP package.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline; enables deterministic real-time response in resource-constrained embedded systems. |
| Flash / RAM | 32 KB code flash (1 KB erase blocks) + 1 KB data flash (512 B blocks) + 2 KB SRAM; supports field firmware updates and parameter storage without external memory. |
| Supply Voltage | 2.4 V to 5.5 V single supply; eliminates need for voltage translation in mixed-voltage systems and supports direct Li-ion or 3.3/5 V rail operation. |
| Operating Temp | −40°C to +105°C (G-grade); qualified for industrial environments including factory automation and building controls. |
| A/D Converter | 10-bit resolution, 11 analog input channels, internal reference (0.815 V), temperature sensor, and touch voltage selection; enables sensor signal acquisition and self-calibration. |
| Capacitive Touch | 15-channel CTSU supporting self-capacitance (15 keys) or mutual capacitance (up to 16 keys in matrix); provides robust, low-EMI human interface without mechanical switches. |
| RTC Function | Real-time clock with 99-year calendar, alarm, and clock correction; delivers accurate timekeeping for logging, scheduling, and power management without external crystals. |
Pinout & Package
Package: 16-pin plastic SSOP (4.4 × 5.0 mm, 0.65-mm pitch), RoHS-compliant, embossed tape packaging (#50).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00 | TOOLTxD / SO00 / TxD0 / SCLA0 | UART transmit output, SPI master output, I²C slave address line; enables serial debug and host communication with shared pin resources. |
| P01 | TOOLRxD / ANI0 / TS00 / SI00 / RxD0 / SDA00 | UART receive input, analog input channel 0, touch sense channel 0, SPI slave input, I²C data line; supports simultaneous analog sensing and serial interface. |
| P02 | PCLBUZ0 / ANI1 / VCOUT0 / INTP7 / TSCAP / TI01 / TO01 / SCK00 / SCL00 | Capacitive touch input, analog input 1, buzzer driver output, interrupt input, timer I/O, SPI clock/I²C clock; central pin for HMI timing and feedback generation. |
| P03 | ANI2 / IVCMP0 / INTP4 / TS03 / TO00 / RxD1 / TI00 | Analog input 2, comparator input, interrupt source, touch channel 3, UART receive, timer output; enables dual UART operation and analog-triggered event handling. |
| P04 | ANI3 / IVREF0 / INTP3 / TS04 / TI06 / TO06 / TxD1 / TI01 / TO01 | Analog input 3, internal voltage reference, interrupt source, touch channel 4, UART transmit, timer I/O; supports reference-based ADC calibration and multi-protocol serial. |
| P05 | ANI4 / IVCMP1 / INTP6 / TS05 / SO11 / TI02 / TO02 | Analog input 4, second comparator input, interrupt source, touch channel 5, SPI output, timer I/O; extends analog monitoring and peripheral control capability. |
| P06 | ANI5 / IVREF1 / TS06 / SI11 / SDA11 / SCLA0 / PCLBUZ0 | Analog input 5, secondary reference voltage, touch channel 6, SPI slave input, I²C data line, I²C slave address; enables dual I²C slave operation and precision analog measurement. |
| P07 | ANI6 / VCOUT1 / TS07 / TI04 / TO04 / SCK11 / SCL11 / SDAA0 | Analog input 6, second voltage output, touch channel 7, timer I/O, SPI clock/I²C clock, I²C data line; supports expanded touch interface and synchronized peripheral timing. |
| P121 | X1 / XT1 / TI07 / TO07 / INTP3 / INTP4 / INTP5 | Crystal oscillator input, timer I/O, multiple interrupt sources; allows external 32.768 kHz crystal for RTC accuracy or high-frequency crystal for system clock. |
| P122 | X2 / XT2 / EXCLK / EXCLKS / TI05 / TO05 / INTP2 | Crystal oscillator output, external clock input/output, timer I/O, interrupt source; supports crystal-less operation using external clock or clock distribution. |
| P125 | RESET / INTP1 / VCOUT0 / VCOUT1 / INTP0 / SI11 | Active-low reset input, multiple interrupt inputs, dual voltage outputs, SPI slave input; integrates system initialization and fault recovery with analog signaling. |
| P137 | INTP0 / TI00 | Interrupt input, timer input; dedicated edge-triggered interrupt pin for fast response to external events like button press or sensor threshold crossing. |
| P40 | TOOL0 / INTP2 / PCLBUZ0 / TI01 / TO01 | On-chip debugger interface, interrupt input, buzzer driver, timer I/O; enables in-system programming and audible user feedback without additional drivers. |
| P41 | RTC1HZ / TS13 / TI03 / TO03 / INTP3 / INTP4 / TI02 / TO02 / VCOUT0 / VCOUT1 | 1 Hz RTC output, touch channel 13, timer I/O, dual interrupt sources, dual voltage outputs; delivers precise timing signals and extended touch capability. |
| VDD | Power Supply | Primary 2.4–5.5 V supply input; powers core, peripherals, and I/O; supports wide-input operation for battery-backed or unregulated systems. |
| VSS | Ground | Digital ground reference; must be connected to PCB ground plane with low-impedance path to ensure noise immunity for analog and touch functions. |
Key Features
| Feature | Design Value |
|---|---|
| True Low-Power Platform | 61 µA/MHz operating current at TA = 125°C; enables battery life extension in always-on industrial sensors and remote HMI devices. |
| Capacitive Touch Sensing Unit (CTSU) | 15-channel hardware-accelerated touch engine with self/mutual capacitance modes; eliminates software polling overhead and improves ESD robustness. |
| Integrated Real-Time Clock (RTC2) | 99-year calendar with alarm and clock correction; removes need for external RTC IC and associated crystal, reducing BOM count and board space. |
| Flexible Serial Interfaces | Up to 3 CSI (SPI), 3 UART, 3 simplified I²C, and 1 full I²C - all configurable via PIOR registers; simplifies connectivity to diverse peripherals without pin conflicts. |
| On-Chip Debug & Self-Programming | Full on-chip debug support and flash self-programming (no boot swap); enables field firmware updates and secure configuration without external programmers. |
| Industrial Temperature Grade | G-grade qualification (−40°C to +105°C); ensures reliable operation in harsh environments such as motor drives, HVAC controllers, and industrial gateways. |
Applications
| Industrial Control Panel | Smart Thermostat Interface |
|---|---|
Use Scenario: Front-panel touch interface for programmable logic controllers with status LEDs, relay control, and real-time diagnostics. IC Role / Device Role / Timing Role: Main MCU executing control logic, managing capacitive touch keys, driving buzzer alerts, and maintaining RTC-synchronized event logs. Use Value: Single-chip integration of touch, RTC, UART, and GPIO reduces component count by ≥4 vs. discrete MCU + RTC + touch controller solutions. |
Use Scenario: Residential HVAC thermostat with ambient temperature sensing, user-adjustable schedule, and wireless module communication. IC Role / Device Role / Timing Role: System controller handling analog sensor reads, capacitive button detection, RTC calendar scheduling, and UART communication to Wi-Fi/BLE module. Use Value: On-chip 10-bit ADC with internal reference and CTSU eliminates external signal conditioning and touch IC, cutting BOM cost by ~$0.35/unit. |
| Programmable Power Outlet | Industrial Sensor Node |
Use Scenario: Energy-monitoring smart outlet with load switching, voltage/current sensing, and time-of-use tariff scheduling. IC Role / Device Role / Timing Role: Primary controller managing relay drive, analog measurements, RTC-based tariff windows, and UART/USB communication to gateway. Use Value: Integrated 32 KB flash stores tariff tables and firmware updates; 2 KB RAM accommodates real-time energy calculation buffers without external SRAM. |
Use Scenario: Battery-powered vibration/temperature node in predictive maintenance systems with wake-on-event and periodic telemetry reporting. IC Role / Device Role / Timing Role: Ultra-low-power sensor aggregator sampling analog inputs, processing CTSU-based tamper detection, and triggering UART transmission on threshold breach. Use Value: HALT/STOP modes + 61 µA/MHz operation extend 2× AA battery life to >2 years; RTC alarm enables precise sleep/wake cycles without external timer. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F1214AASP#50 | 16 KB code flash (vs. 32 KB), same package, identical peripherals and pinout. | Suitable for simpler firmware with smaller code footprint; lacks headroom for future feature expansion or OTA updates. | Select when application firmware fits within 16 KB and long-term scalability is not required. |
| R5F1214CGSP#50 | Same 32 KB flash and peripherals, but G-grade (−40°C to +105°C) vs. M-grade (−40°C to +125°C) thermal rating. | Valid for industrial environments up to +105°C; not rated for under-hood automotive or high-temp motor control enclosures. | Choose for cost-sensitive industrial applications where +125°C operation is unnecessary. |
Compared with R5F1214AASP#50, the R5F1214CASP#50 provides double flash capacity for complex HMI logic and firmware resilience; compared with R5F1214CGSP#50, it offers extended thermal margin for high-reliability deployments in thermally demanding enclosures.
Availability
R5F1214CASP#50 is available at Aetrix Electronics and suitable for industrial control panels, smart thermostats, programmable outlets, and battery-powered sensor nodes requiring stable component supply across extended product lifecycles.
Supply support for R5F1214CASP#50 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 headquartered in Tokyo, Japan, specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and IoT markets.
The RL78/G16 group is designed for ultra-low-power, cost-sensitive embedded applications requiring integrated analog, touch, and timing functions - particularly in industrial HMI, appliance control, and sensor edge nodes.
FAQ
What is the maximum operating frequency and corresponding instruction cycle time for the R5F1214CASP#50?
The R5F1214CASP#50 supports a maximum system clock of 16 MHz using the high-speed on-chip oscillator. At this frequency, the minimum instruction execution time is 0.0625 μs. This timing is achievable with the on-chip oscillator enabled and configured for 16 MHz operation, providing deterministic real-time performance for time-critical control loops in the R5F1214CASP#50.
Does the R5F1214CASP#50 support background operation during data flash rewriting?
No, the R5F1214CASP#50 does not support background operation (BGO) during data flash rewriting. While rewriting the 1 KB data flash memory, instruction execution from code flash memory is disabled. This requires careful firmware design to execute flash writes only during safe idle periods, as confirmed in the R5F1214CASP#50 datasheet section on data flash memory operation.
How many capacitive touch channels does the R5F1214CASP#50 support, and what configurations are available?
The R5F1214CASP#50 integrates a 15-channel Capacitive Touch Sensing Unit (CTSU). It supports self-capacitance mode (one key per pin, up to 15 keys) and mutual capacitance mode (matrix configuration using selected transmit/receive pins from the 15 available, supporting up to 16 keys). Both modes are implemented in hardware, requiring no external components for the R5F1214CASP#50.
What is the analog-to-digital converter resolution and input channel count on the R5F1214CASP#50?
The R5F1214CASP#50 features an 8/10-bit resolution successive approximation register (SAR) A/D converter with up to 11 analog input channels (ANI0–ANI10). The converter operates across the full supply range of 2.4 V to 5.5 V and includes selectable internal reference voltage (0.815 V typical), temperature sensor, and touch voltage inputs - all accessible without external circuitry on the R5F1214CASP#50.
Is the R5F1214CASP#50 pin-compatible with other RL78/G16 variants in the same package?
Yes, the R5F1214CASP#50 is fully pin-compatible with other 16-pin RL78/G16 devices in SSOP packaging, including R5F1214AASP#50, R5F1214CGSP#50, and R5F1214AGSP#50. All share identical pin functions, electrical characteristics, and mechanical dimensions, enabling drop-in replacement for memory or grade changes without PCB redesign for the R5F1214CASP#50.
R5F1214CASP#50 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 16-SSOP (0.173", 4.40mm Width)
- 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:
- 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#50 FAQ
1.How can I place an order for R5F1214CASP#50 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F1214CASP#50 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#50 reliable?
The price and inventory of R5F1214CASP#50 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F1214CASP#50 is usually 5 days.
3.What payment methods are accepted for R5F1214CASP#50?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F1214CASP#50 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F1214CASP#50?
R5F1214CASP#50 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F1214CASP#50 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#50?
For technical support, including R5F1214CASP#50 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F1214CASP#50 requirements.
6.How does Aetrix verify that R5F1214CASP#50 is sourced from the original manufacturer or authorized distributors?
All R5F1214CASP#50 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#50 meets industry standards.
7.What is the process for return or replacement of R5F1214CASP#50?
All R5F1214CASP#50 units undergo pre-shipment inspection (PSI). If there is an issue with R5F1214CASP#50, 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#50 part is unused and in its original packaging.
Return procedure for R5F1214CASP#50:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F1214CASP#50 Tags
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