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Renesas R5F1211CMSP#50
- Part No.:
- R5F1211CMSP#50
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 10-LSSOP (0.173", 4.40mm Width)
- Datasheet:
-
R5F1211CMSP#50.pdf
- Description:
- 16BIT MCU RL78/G16 32K 10LSSOP -
- Quantity:
- Payment:
- Shipping:
Inventory:4,996
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Product details
Overview
R5F1211CMSP#50 from Renesas Electronics is a 10-pin, 32 KB flash RL78/G16 microcontroller with industrial-grade temperature range (−40°C to +125°C), 2 KB RAM, 1 KB data flash, and integrated capacitive touch sensing unit (15-channel CTSU). It operates from 2.4–5.5 V, supports HALT/STOP low-power modes, and delivers real-time control in space-constrained embedded systems such as appliance control panels and industrial sensor nodes.
For engineers reviewing the R5F1211CMSP#50 datasheet, R5F1211CMSP#50 pinout, R5F1211CMSP#50 application, or R5F1211CMSP#50 equivalent, this page provides verified technical context, package-specific pin mapping, key timing and interface parameters, and validated alternative options for industrial-grade MCU selection.
Technical Context
The R5F1211CMSP#50 implements the RL78 CPU core-a CISC architecture with 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 (8 channels), 12-bit interval timer, watchdog timer, and real-time clock with 99-year calendar and alarm function.
Its analog subsystem includes an 8/10-bit A/D converter (4-channel input), two comparators with selectable reference sources, and internal voltage references (0.815 V TYP.) and temperature sensor. The CTSU supports both self-capacitance (up to 15 keys) and mutual capacitance (matrix up to 16 keys) operation 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 unit writes |
| Operating Voltage | 2.4–5.5 V single supply; enables direct battery or industrial rail interfacing |
| Temperature Range | −40°C to +125°C (M-grade industrial qualification) |
| Capacitive Touch | 15-channel CTSU supporting self- and mutual-capacitance sensing without external RC networks |
| Timers & RTC | Eight 16-bit timers, one 12-bit interval timer, one watchdog timer, and RTC with calendar, alarm, and clock correction |
Pinout & Package
Package: 10-pin plastic LSSOP (4.4 × 3.6 mm, 0.65-mm pitch), lead-free, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P125/RESET/INTP1/(VCOUT0)/(INTP0) | Reset input / External interrupt / Comparator output | Active-low reset with glitch filter; dual-function interrupt pin; VCOUT0 supports comparator output routing |
| P40/TOOL0/INTP2/(PCLBUZ0)/(TI01/TO01) | Debug interface / Interrupt / Buzzer / Timer I/O | Primary on-chip debug port (TOOL0); configurable as buzzer driver or timer channel I/O |
| P137/INTP0/TI00 | External interrupt / Timer I/O | Dedicated interrupt input with priority handling; also serves as TI00 timer input capture/output compare |
| VSS | Ground reference | Analog/digital common ground; requires low-impedance PCB connection for noise-sensitive analog operation |
| VDD | Power supply | Single 2.4–5.5 V supply powering core, peripherals, and CTSU; decoupling required per datasheet layout guidelines |
| P04/ANI3/IVREF0/INTP3/TS04/SDAA0/(TI01/TO01) | Analog input / Reference / Interrupt / Touch / I²C slave | Configurable as ADC input (ANI3), internal reference source (IVREF0), touch sense channel (TS04), or I²C slave address (SDAA0) |
| P03/ANI2/IVCMP0/INTP4/TS03/TO00/SCLA0/(TI00) | Analog input / Comparator / Interrupt / Touch / I²C master | Supports analog sensing, comparator reference (IVCMP0), touch acquisition (TS03), and I²C master clock (SCLA0) |
| P02/PCLBUZ0/ANI1/VCOUT0/INTP7/TSCAP/TI01/TO01/SCK00/SCL00 | Buzzer / Analog / Comparator / Interrupt / Touch / Timer / SPI clock | Multi-function pin enabling buzzer drive (PCLBUZ0), touch electrode (TSCAP), and SPI master clock (SCK00) |
| P01/TOOLRxD/ANI0/INTP5/TS00/TI02/TO02/SI00/RxD0/SDA00/(TI01/TO01) | Debug RX / Analog / Interrupt / Touch / Timer / UART / I²C | Primary debug receive line; also serves as first ADC channel (ANI0), touch channel (TS00), and UART/I²C data I/O |
| P00/TOOLTxD/INTP6/SO00/TxD0/(TI02/TO02)/(SCLA0) | Debug TX / Interrupt / SPI output / UART TX / I²C clock | Debug transmit line with interrupt capability; configurable as SPI data output (SO00), UART TX, or I²C master clock (SCLA0) |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power operation | HALT and STOP modes reduce current draw to enable battery-powered operation over multi-year lifetimes |
| Integrated capacitive touch sensing | 15-channel CTSU eliminates need for external touch controller ICs or discrete RC networks in HMI designs |
| High-accuracy on-chip oscillator | ±1.5% frequency accuracy at TA = −40°C to +125°C enables reliable timing without external crystal |
| Industrial temperature qualification | M-grade rating (−40°C to +125°C) ensures functional reliability in motor drives, HVAC, and factory automation |
| On-chip debug and programming | TOOL0/TOOLRxD/TOOLTxD pins provide full in-circuit debugging and flash programming without external JTAG adapter |
| Flexible serial interfaces | Up to three CSI (SPI-like), three UART, and three simplified I²C channels support mixed-protocol peripheral connectivity |
Applications
| Home Appliance Control Panel | Industrial Sensor Node |
|---|---|
|
Use Scenario: Touch-enabled front panel for microwave ovens or washing machines with LED indicators and buzzer feedback. IC Role / Device Role / Timing Role: Primary system controller executing UI logic, managing CTSU scan, driving buzzer via PCLBUZ0, and coordinating display updates via UART. Use Value: Single-chip integration of touch, timing, and communication reduces BOM count and PCB area versus discrete MCU + touch controller solutions. |
Use Scenario: Battery-powered environmental monitor measuring temperature, humidity, and vibration in factory machinery. IC Role / Device Role / Timing Role: Low-power host MCU acquiring analog sensor data (ADC), timestamping events via RTC, and transmitting via UART to gateway. Use Value: M-grade temperature range and HALT mode enable continuous operation in uncontrolled ambient conditions while extending battery life. |
| Smart Thermostat Interface | Motor Drive Auxiliary Controller |
|
Use Scenario: Wall-mounted thermostat with capacitive buttons, LCD backlight control, and local temperature compensation. IC Role / Device Role / Timing Role: Dedicated HMI controller handling touch detection (CTSU), analog temperature reading (ADC + internal sensor), and PWM-driven backlight dimming. Use Value: On-chip 0.815 V reference and internal temperature sensor eliminate external calibration components and reduce system cost. |
Use Scenario: Secondary controller in BLDC motor drive for fault monitoring, thermal protection, and status reporting. IC Role / Device Role / Timing Role: Safety-monitoring MCU sampling motor current (ADC), detecting overtemperature (internal sensor), and signaling faults via GPIO/UART. Use Value: −40°C to +125°C operation ensures reliable fault detection even during extended motor overload conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F1211AMSP#50 | 16 KB code flash (vs. 32 KB); same 10-pin LSSOP package, M-grade temp, identical peripherals and pinout | Suitable where firmware size <16 KB and cost sensitivity outweighs future scalability needs | Select when application firmware fits within 16 KB and long-term code growth is not anticipated |
| R5F1214CMSP#50 | 16-pin SSOP package; adds 2 extra ADC inputs (ANI5/ANI6), 1 extra CTSU channel (TS06/TS07), and SI11/SDA11 I²C interface | Required when additional analog sensing, touch electrodes, or dual I²C buses are needed | Choose for expanded I/O and analog capability while retaining same core, flash, and temperature rating |
Compared with R5F1211AMSP#50, the R5F1211CMSP#50 provides double the code flash for complex control algorithms or OTA update partitions; compared with R5F1214CMSP#50, it offers identical processing and memory but in a smaller 10-pin footprint for ultra-compact designs.
Availability
R5F1211CMSP#50 is available at Aetrix Electronics and suitable for industrial sensor nodes, home appliance control panels, smart thermostats, and motor drive auxiliary controllers requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R5F1211CMSP#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 is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.
The RL78/G16 product line delivers ultra-low-power, cost-optimized MCUs with integrated capacitive touch and industrial temperature resilience for appliance, sensor, and HMI applications.
FAQ
What is the maximum operating frequency and corresponding instruction cycle time for the R5F1211CMSP#50?
The R5F1211CMSP#50 supports a high-speed on-chip oscillator up to 16 MHz, delivering a minimum instruction execution time of 0.0625 μs. This timing is achievable with the high-speed on-chip oscillator enabled and no wait states inserted. The R5F1211CMSP#50 also supports lower-frequency clock sources including 32.768 kHz for ultra-low-power RTC operation.
Does the R5F1211CMSP#50 support in-system programming and debugging without external tools?
Yes, the R5F1211CMSP#50 includes on-chip debug functionality accessible via the TOOL0, TOOLRxD, and TOOLTxD pins. These pins enable full in-circuit debugging, flash programming, and real-time trace without requiring external JTAG emulators or dedicated debug adapters. The R5F1211CMSP#50 supports self-programming of both code and data flash memory.
How many analog input channels does the R5F1211CMSP#50 support, and what is the resolution?
The R5F1211CMSP#50 integrates an 8/10-bit successive approximation A/D converter with 4 analog input channels (ANI0–ANI3). Resolution is selectable per conversion, and the ADC operates across the full 2.4–5.5 V supply range. Internal references (0.815 V TYP.) and temperature sensor are available for calibration and compensation.
What is the guaranteed operating temperature range for the R5F1211CMSP#50?
The R5F1211CMSP#50 is rated for industrial operation from −40°C to +125°C (M-grade qualification). This specification is guaranteed per Renesas' datasheet R01DS0431EJ0130 and applies to all electrical parameters including flash endurance, ADC accuracy, oscillator stability, and CTSU performance.
Can the R5F1211CMSP#50 drive a piezoelectric buzzer directly, and which pin supports this function?
Yes, the R5F1211CMSP#50 includes a programmable clock output/buzzer controller (PCLBUZ0) that can directly drive piezoelectric buzzers without external transistors. Pin P02 is designated as PCLBUZ0 and supports this function natively. The R5F1211CMSP#50 also allows buzzer output on P40 and P00 through peripheral I/O redirection register (PIOR) configuration.
R5F1211CMSP#50 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 10-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:
- 7
- 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 4x8/10b
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F1211CMSP#50 FAQ
1.How can I place an order for R5F1211CMSP#50 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F1211CMSP#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 R5F1211CMSP#50 reliable?
The price and inventory of R5F1211CMSP#50 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F1211CMSP#50 is usually 5 days.
3.What payment methods are accepted for R5F1211CMSP#50?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F1211CMSP#50 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F1211CMSP#50?
R5F1211CMSP#50 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F1211CMSP#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 R5F1211CMSP#50?
For technical support, including R5F1211CMSP#50 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F1211CMSP#50 requirements.
6.How does Aetrix verify that R5F1211CMSP#50 is sourced from the original manufacturer or authorized distributors?
All R5F1211CMSP#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 R5F1211CMSP#50 meets industry standards.
7.What is the process for return or replacement of R5F1211CMSP#50?
All R5F1211CMSP#50 units undergo pre-shipment inspection (PSI). If there is an issue with R5F1211CMSP#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 R5F1211CMSP#50 part is unused and in its original packaging.
Return procedure for R5F1211CMSP#50:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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