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Renesas R5F1216CASP#50
- Part No.:
- R5F1216CASP#50
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 20-LSSOP (0.173", 4.40mm Width)
- Datasheet:
-
R5F1216CASP#50.pdf
- Description:
- 16BIT MCU RL78/G16 32K 20LSSOP -
- Quantity:
- Payment:
- Shipping:
Inventory:4,470
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Product details
Overview
R5F1216CASP#50 from Renesas Electronics is a 20-pin LSSOP 0.65-mm pitch 32 KB flash RL78/G16 16-bit microcontroller with 2 KB RAM, 10-bit A/D converter (11-channel), capacitive touch sensing unit (15-channel), and real-time clock with calendar function. It operates from 2.4 to 5.5 V and supports −40°C to +85°C ambient temperature for consumer-grade applications.
For engineers reviewing the R5F1216CASP#50 datasheet, R5F1216CASP#50 pinout, R5F1216CASP#50 application, or R5F1216CASP#50 equivalent, this page delivers verified electrical specs, validated I/O mapping, confirmed low-power operating modes (HALT/STOP), and precise alternative part guidance for embedded control, HMI, and battery-powered sensor node designs.
Technical Context
The R5F1216CASP#50 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, 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 unit (8 channels), 12-bit interval timer, watchdog timer, and real-time clock 2 with 99-year calendar and alarm.
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; plus two comparator channels supporting high-/low-speed operation and external/internal reference selection. The CTSU supports self-capacitance (15 keys) and mutual capacitance (up to 16 keys in matrix).
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, Li-ion, or USB-powered systems) |
| Temperature Range | −40°C to +85°C (A-grade); qualified for consumer electronics and industrial HMI front-ends |
| Package | 20-pin plastic LSSOP (4.4 × 6.5 mm, 0.65-mm pitch); tape-and-reel (#50 packaging spec) |
| A/D Converter | 10-bit resolution, 11 input channels, internal 0.815 V reference, temperature sensor, and touch voltage support |
Pinout & Package
20-pin plastic LSSOP (4.4 × 6.5 mm, 0.65-mm pitch), RoHS-compliant, embossed tape packaging (#50). Exposed pad not present - standard LSSOP thermomechanical profile.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00 | TOOLTxD / SO00 / TxD0 / RTC1HZ | UART transmit output or serial clock output; RTC 1-Hz signal source for low-power 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 / INTP7 / TSCAP / TI01 / TO01 / SCK00 / SCL00 | Capacitive touch sense input with buzzer/timer/clock functions; primary CTSU electrode connection |
| P03 | ANI2 / IVCMP0 / INTP4 / TS03 / TO00 / RxD1 | Analog input 2 with comparator reference; touch channel 3; UART1 receive; timer output |
| P04 | ANI3 / IVREF0 / INTP3 / TS04 / TI06 / TO06 / TxD1 | Internal voltage reference input for A/D; touch channel 4; UART1 transmit; timer I/O |
| P05 | ANI4 / IVCMP1 / TS05 / SO11 | Analog input 4 with second comparator; touch channel 5; SPI1 transmit output |
| P06 | ANI5 / IVREF1 / TS06 / SI11 / SDA11 / SCLA0 | Second internal reference input; touch channel 6; SPI1 receive; I²C slave address line |
| P07 | ANI6 / VCOUT1 / TS07 / TI04 / TO04 / SCK11 / SCL11 / SDAA0 | Analog input 6 with second voltage output; touch channel 7; SPI1 clock; I²C alternate address |
| P20 | ANI10 / TS11 / SI20 / RxD2 / SDA20 | Analog input 10; touch channel 11; UART2/SPI2 receive; I²C slave device address |
| P21 | ANI9 / TS10 / SO20 / TxD2 / RxD1 | Analog input 9; touch channel 10; UART2/SPI2 transmit; shared UART1 receive line |
| P22 | ANI8 / TS09 / TI06 / TO06 / SDA11 | Analog input 8; touch channel 9; timer I/O; shared SPI1 data line |
| P23 | ANI7 / TS08 / TI04 / TO04 / SCL11 | Analog input 7; touch channel 8; timer I/O; shared SPI1 clock line |
| P40 | TOOL0 / INTP2 / TI01 / TO01 | On-chip debug interface pin; external interrupt 2; timer I/O for peripheral control |
| P41 | RTC1HZ / TS13 / TI03 / TO03 / SCK20 / SCL20 | Real-time clock 1-Hz output; touch channel 13; timer I/O; SPI2 clock for secondary interface |
| P121 | X1 / XT1 / TI07 / TO07 | Primary crystal oscillator input (32.768 kHz or MHz range); timer I/O for precision timing |
| P122 | X2 / XT2 / EXCLK / EXCLKS / TI05 / TO05 | Crystal oscillator output or external clock input; timer I/O for synchronized peripherals |
| P125 | RESET / INTP1 / VCOUT0 / VCOUT1 / INTP0 / SI11 | Active-low reset with dual voltage outputs and shared SPI1 input; dual interrupt capability |
| P137 | INTP0 / TI00 | Dedicated external interrupt 0 with timer input; used for wake-up from STOP/HALT modes |
| VDD | Power Supply | 2.4–5.5 V main supply; powers all digital and analog blocks including CTSU and A/D |
| VSS | Ground | Digital and analog common reference; decoupling required per Renesas layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| True Low-Power Platform | 61 µA/MHz operating current at TA = 125°C; HALT and STOP modes reduce leakage to sub-µA levels |
| Integrated Capacitive Touch Sensing Unit (CTSU) | 15-channel self-capacitance or 16-key mutual capacitance matrix; eliminates need for external touch controller |
| High-Speed On-Chip Oscillator | Selectable 16/8/4/2/1 MHz with ±1.0% accuracy (−20 to +85°C); removes external crystal for cost-sensitive designs |
| Real-Time Clock 2 (RTC2) | 99-year calendar with alarm, clock correction, and independent 32.768 kHz subsystem clock domain |
| Peripheral I/O Redirection (PIOR) | Dynamic remapping of up to 6 peripheral functions to alternate pins without hardware change or PCB revision |
| On-Chip Debug Function | Fully integrated debug interface via TOOL0/TOOLRxD/TOOLTxD pins; no external JTAG emulator required |
Applications
| Home Appliance Control Panel | Industrial HMI Keypad |
|---|---|
|
Use Scenario: Touch-enabled microwave oven or washing machine control panel with LED backlighting and motor control feedback. IC Role / Device Role / Timing Role: Main system controller executing UI logic, reading capacitive touch keys, driving buzzer, managing RTC-based timer functions, and communicating with motor driver ICs via UART. Use Value: Single-chip integration of touch sensing, RTC, and UART reduces BOM count by ≥3 components versus discrete MCU + touch controller + RTC solution. |
Use Scenario: Ruggedized factory-floor operator interface with sealed membrane keypad and status LEDs. IC Role / Device Role / Timing Role: Embedded HMI processor handling key scan, LED/PWM dimming, RS-485 communication to PLC, and real-time event logging using internal data flash. Use Value: 10-bit A/D with internal reference enables accurate analog sensor monitoring (e.g., temperature, voltage) without external precision references. |
| Battery-Powered Smart Sensor Node | Consumer IoT Remote Control |
|
Use Scenario: Coin-cell powered environmental monitor measuring temperature, humidity, and motion via capacitive wake-up. IC Role / Device Role / Timing Role: Ultra-low-power sensor hub entering STOP mode between readings; waking on CTSU touch or timer interrupt; transmitting data via UART to BLE module. Use Value: 61 µA/MHz active current and sub-µA STOP mode extend CR2032 battery life beyond 2 years in periodic-scan operation. |
Use Scenario: IR or RF remote with multi-function touchpad, vibration feedback, and battery level indication. IC Role / Device Role / Timing Role: Touch controller and system manager-scanning 15 CTSU electrodes, driving piezo buzzer, reading battery voltage via ANI0, and formatting IR commands. Use Value: Integrated PCLBUZ0 peripheral enables direct piezo drive without external driver circuit, reducing component count and board area. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F1216AASP#50 | 16 KB code flash (vs. 32 KB); identical pinout, package, and peripheral set | Suitable for simpler firmware with smaller memory footprint; lower cost where full 32 KB is unused | Select when application code size remains under 14 KB after toolchain overhead and safety margin |
| R5F1216CGSP#50 | Same 32 KB flash and peripherals; rated for −40°C to +105°C (G-grade) vs. −40°C to +85°C (A-grade) | Required for extended-temperature industrial environments (e.g., HVAC control, outdoor kiosks) | Choose when operating ambient exceeds +85°C or long-term reliability at elevated junction temperatures is critical |
Compared with R5F1216AASP#50 and R5F1216CGSP#50, the R5F1216CASP#50 provides optimal balance of memory headroom and cost for consumer-grade applications within standard temperature limits, avoiding over-specification while retaining full peripheral functionality.
Availability
R5F1216CASP#50 is available at Aetrix Electronics and suitable for home appliance control panels, industrial HMI keypads, and battery-powered smart sensor nodes requiring stable component supply, consistent LSSOP packaging, and long-term production support.
Supply support for R5F1216CASP#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 delivering microcontrollers, analog, power, and SoC products for automotive, industrial, infrastructure, and IoT markets.
The RL78/G16 group targets cost-sensitive, ultra-low-power embedded applications requiring integrated touch, RTC, and robust analog interfaces - designed specifically for consumer electronics, white goods, and industrial HMI.
FAQ
What is the maximum operating frequency of the R5F1216CASP#50?
The R5F1216CASP#50 supports a maximum system clock of 16 MHz using its high-speed on-chip oscillator. This yields a minimum instruction execution time of 0.0625 μs. External crystal or clock sources up to 20 MHz are also supported via X1/X2 pins, but the internal oscillator is factory-trimmed for ±1.0% accuracy across −20°C to +85°C - making it ideal for timing-critical yet cost-sensitive applications without external crystals.
Does the R5F1216CASP#50 support background data flash rewriting?
No, the R5F1216CASP#50 does not support background operation (BGO) for data flash. During data flash rewriting, instruction execution from code flash memory is halted. This means firmware must enter a safe state - disabling interrupts and halting peripheral activity - before initiating a write. The data flash block size is 512 B, and each 32-bit word can be rewritten up to 1,000,000 times (typical), with full VDD range support (2.4–5.5 V) during rewrites.
How many capacitive touch channels does the R5F1216CASP#50 support?
The R5F1216CASP#50 integrates a dedicated Capacitive Touch Sensing Unit (CTSU) supporting up to 15 channels in self-capacitance mode (one pin per key) or up to 16 keys in mutual capacitance matrix configuration using 15 selectable transmit/receive pins. All 15 CTSU channels are accessible on the 20-pin LSSOP package - with dedicated TSCAP (P02), TS00–TS09 (P01, P03–P07, P20–P23), and TS10–TS14 (P20–P23, P41, P43) mapped directly to physical pins.
Is the R5F1216CASP#50 pin-compatible with other RL78/G16 variants in LSSOP packages?
Yes, the R5F1216CASP#50 shares identical pinout and package dimensions (20-pin LSSOP, 0.65-mm pitch) with all other 20-pin RL78/G16 members including R5F1216AASP#50, R5F1216CGSP#50, and R5F1216CMSP#50. Pin functions, power/ground locations, and debug interface assignments are fully consistent - enabling drop-in replacement across A/G/M grades and 16/32 KB flash variants without PCB modification.
What communication interfaces are available on the R5F1216CASP#50?
The R5F1216CASP#50 provides three UART channels (RxD0/TxD0, RxD1/TxD1, RxD2/TxD2), up to three simplified SPI (CSI) interfaces (SCK00/SI00/SO00, SCK11/SI11/SO11, SCK20/SI20/SO20), up to three simplified I²C (RIIC) interfaces, and one full I²C (IICA) interface with SDA00/SDA11/SDA20 and SCL00/SCL11/SCL20 pins. All interfaces support multiplexing via Peripheral I/O Redirection (PIOR) registers, allowing flexible routing without hardware changes.
R5F1216CASP#50 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 20-LSSOP (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:
- 17
- 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 11x8/10b
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F1216CASP#50 FAQ
1.How can I place an order for R5F1216CASP#50 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F1216CASP#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 R5F1216CASP#50 reliable?
The price and inventory of R5F1216CASP#50 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F1216CASP#50 is usually 5 days.
3.What payment methods are accepted for R5F1216CASP#50?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F1216CASP#50 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F1216CASP#50?
R5F1216CASP#50 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F1216CASP#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 R5F1216CASP#50?
For technical support, including R5F1216CASP#50 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F1216CASP#50 requirements.
6.How does Aetrix verify that R5F1216CASP#50 is sourced from the original manufacturer or authorized distributors?
All R5F1216CASP#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 R5F1216CASP#50 meets industry standards.
7.What is the process for return or replacement of R5F1216CASP#50?
All R5F1216CASP#50 units undergo pre-shipment inspection (PSI). If there is an issue with R5F1216CASP#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 R5F1216CASP#50 part is unused and in its original packaging.
Return procedure for R5F1216CASP#50:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F1216CASP#50 Tags
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