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Renesas R5F1211CMSP#30
- Part No.:
- R5F1211CMSP#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 10-LSSOP (0.173", 4.40mm Width)
- Datasheet:
-
R5F1211CMSP#30.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 10LSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,500
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Product details
Overview
R5F1211CMSP#30 from Renesas Electronics is a 10-pin, 32 KB flash RL78/G16 16-bit microcontroller designed for ultra-low-power industrial HMI and sensor-edge applications. It operates from 2.4–5.5 V, delivers 61 µA/MHz active current at 125°C, integrates 2 KB RAM, 1 KB data flash, 15-channel capacitive touch sensing (CTSU), and supports −40 to +125°C operation (M-grade).
For engineers reviewing the R5F1211CMSP#30 datasheet, R5F1211CMSP#30 pinout, R5F1211CMSP#30 application, or R5F1211CMSP#30 equivalent, this page provides verified technical context, real-world use cases, validated alternatives, and supply-chain-ready availability details specific to the LSSOP-10 package with industrial temperature grade.
Technical Context
The R5F1211CMSP#30 implements the RL78 CPU core with a 3-stage pipeline CISC architecture, enabling configurable instruction execution times from 0.0625 μs (@16 MHz high-speed oscillator) to 30.5 μs (@32.768 kHz subsystem clock). Its memory subsystem includes 32 KB code flash (1 KB blocks), 1 KB data flash (512 B blocks, 1M rewrite cycles), and 2 KB on-chip RAM.
Peripheral integration centers on low-power system control: 8× 16-bit timers, 1× 12-bit interval timer, watchdog timer, RTC with 99-year calendar, 10-bit A/D converter (4-channel analog input), 1× comparator, simplified SPI/UART/I²C interfaces (1–3 channels each), and dedicated capacitive touch sensing unit supporting self- and mutual-capacitance configurations up to 16 keys.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and variable instruction timing |
| Flash Memory | 32 KB code flash (1 KB erase blocks); enables firmware updates without external memory |
| Data Flash | 1 KB data flash (512 B blocks, 1,000,000 rewrite cycles); stores calibration or user settings non-volatilely |
| Operating Voltage | 2.4–5.5 V single supply; supports direct battery operation (e.g., 3.0 V Li-ion or 4.5–5.5 V industrial rails) |
| Temperature Range | −40°C to +125°C (M-grade); qualified for under-hood automotive sensors and industrial motor controls |
| Package | 10-pin LSSOP (4.4 × 3.6 mm, 0.65-mm pitch); compact footprint for space-constrained HMI panels |
| Capacitive Touch | 15-channel CTSU with self/mutual capacitance support; enables robust button/slider UI without mechanical switches |
Pinout & Package
10-pin plastic LSSOP (4.4 × 3.6 mm, 0.65-mm pitch), surface-mount package optimized for reflow assembly and thermal performance in industrial ambient conditions.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P125/RESET/INTP1 | Reset input / External interrupt 1 | Active-low hardware reset with glitch filtering; dual-role pin reduces BOM count in simple systems |
| P40/TOOL0/INTP2 | Debug interface / External interrupt 2 | Enables on-chip debugging via single-wire TOOL interface; eliminates need for separate debug header |
| P137/INTP0/TI00 | External interrupt 0 / Timer I/O 0 | Edge-triggered wake-up source from deep sleep; also serves as general-purpose timer channel |
| VSS | Ground reference | Dedicated power return path; decoupling capacitor must be placed adjacent to minimize noise coupling |
| VDD | Power supply input | Single 2.4–5.5 V supply powers entire chip; internal voltage regulator ensures stable core operation |
| P00/TOOLTxD/INTP6 | Debug UART TX / External interrupt 6 | Provides serial debug output during development; doubles as interrupt source for event-driven wake-up |
| P01/TOOLRxD/ANI0 | Debug UART RX / Analog input 0 | Supports full-duplex debug communication; ANI0 enables direct sensor interface (e.g., thermistor, potentiometer) |
| P02/PCLBUZ0/ANI1 | Buzzer driver / Analog input 1 / Touch sense | Drives piezo buzzer directly (no external transistor); ANI1 and TSCAP enable integrated HMI feedback |
| P03/ANI2/IVCMP0 | Analog input 2 / Comparator input | Shares pin between ADC and comparator; allows threshold-based wake-up (e.g., overvoltage detection) |
| P04/ANI3/IVREF0 | Analog input 3 / Internal reference voltage | IVREF0 provides stable 0.815 V reference for precise ADC measurements across temperature range |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power HALT/STOP modes | Reduces current draw to sub-μA levels while retaining RAM and register state-ideal for battery-powered remote sensors |
| On-chip high-speed oscillator (16 MHz ±1.0%) | Eliminates external crystal cost and board area; meets timing requirements for UART comms and real-time control loops |
| Capacitive touch sensing unit (CTSU) | 15-channel hardware-accelerated touch engine enables robust, ESD-tolerant UI on metal or plastic overlays without firmware overhead |
| Self-programmable flash with no boot swap | Allows field firmware updates using standard I/O pins-no special programming voltage or external tools required |
| Real-time clock with 99-year calendar | Hardware RTC with alarm and clock correction supports time-stamped logging and scheduled wake-up in energy-harvesting nodes |
| Integrated 10-bit A/D converter (4 channels) | Direct analog sensor interfacing (e.g., temperature, pressure, light) with internal reference and temperature sensor-no external components needed |
Applications
| Industrial Control Panel | Smart Appliance Interface |
|---|---|
|
Use Scenario: Front-panel HMI for HVAC controllers or PLC operator terminals with push-button and slider inputs. IC Role / Device Role / Timing Role: Primary MCU executing touch decoding, LED/buzzer feedback, and RS-485 communication stack. Use Value: Integrated CTSU and 10-bit ADC eliminate external touch controller ICs; M-grade temp rating ensures reliability in factory-floor enclosures. |
Use Scenario: User interface module in washing machines or dishwashers requiring water-resistant touch controls. IC Role / Device Role / Timing Role: Dedicated HMI processor handling capacitive key scanning, buzzer alerts, and display backlight dimming. Use Value: Self-capacitance mode supports overlay thickness up to 8 mm; STOP mode extends battery life in cordless handheld remotes. |
| Automotive Cabin Sensor Node | Energy Monitoring Module |
|
Use Scenario: Under-dash occupancy or ambient light sensor node in vehicles with CAN/LIN gateway interface. IC Role / Device Role / Timing Role: Edge-sensing MCU acquiring analog sensor data and triggering wake-up events for main ECU. Use Value: −40°C to +125°C operation qualifies for placement near HVAC ducts; built-in RTC timestamps sensor logs for diagnostics. |
Use Scenario: DIN-rail mounted electricity meter add-on module measuring voltage/current via shunt or CT sensors. IC Role / Device Role / Timing Role: Data acquisition and preprocessing unit performing ADC sampling, RMS calculation, and secure flash storage. Use Value: 1 KB data flash retains calibration coefficients and tamper logs; 61 µA/MHz efficiency extends runtime in solar-powered deployments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F1211AMSP#30 | Same package and pinout; reduced 16 KB code flash and A-grade (−40 to +85°C) temperature rating | Suitable for consumer-grade appliances where extended temperature range and larger firmware space are unnecessary | Select when cost sensitivity outweighs industrial temp margin and firmware scalability needs |
| R5F1214CMSP#30 | 16-pin SSOP package; adds 2 extra analog inputs (ANI5/ANI6), 1 extra comparator channel, and RTC1HZ output pin | Required for designs needing >4 analog channels or dual-comparator fault monitoring (e.g., motor phase current sensing) | Choose when additional analog I/O or enhanced timing outputs justify larger PCB footprint and higher pin count |
Compared with R5F1211AMSP#30, the R5F1211CMSP#30 provides double the code flash and extended temperature capability critical for industrial firmware complexity and under-hood deployment; versus R5F1214CMSP#30, it trades pin count and analog channel count for minimal footprint in space-constrained touch interfaces.
Availability
R5F1211CMSP#30 is available at Aetrix Electronics and suitable for industrial control panels, smart appliance interfaces, automotive cabin sensor nodes, and energy monitoring modules requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R5F1211CMSP#30 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 true low-power performance with integrated capacitive touch and robust industrial qualification-designed specifically for cost-sensitive, space-constrained HMI and sensor-edge applications.
FAQ
What is the maximum operating frequency of the R5F1211CMSP#30?
The R5F1211CMSP#30 supports a maximum CPU operating frequency of 16 MHz using its on-chip high-speed oscillator. This frequency is factory-trimmed to ±1.0% accuracy across −20°C to +85°C and ±1.5% at −40°C to +125°C, ensuring reliable UART communication and deterministic real-time control without external crystals. The R5F1211CMSP#30 achieves 0.0625 μs minimum instruction execution time at this speed.
Does the R5F1211CMSP#30 support in-system programming?
Yes, the R5F1211CMSP#30 supports full in-system programming via its on-chip debug interface (TOOL0/TOOLTxD/TOOLRxD pins) using standard UART signals. It enables self-programming of both code and data flash without boot swap functionality-allowing firmware updates in the field using only the existing communication interface and no external programming hardware. This capability is fully implemented in the R5F1211CMSP#30.
How many capacitive touch channels does the R5F1211CMSP#30 support?
The R5F1211CMSP#30 integrates a dedicated Capacitive Touch Sensing Unit (CTSU) with 15 physical channels. It supports both self-capacitance (up to 15 independent keys) and mutual-capacitance (matrix configuration supporting up to 16 keys) modes. All 15 channels are accessible on the 10-pin LSSOP package through shared pins like P02/TSCAP and analog inputs ANI0–ANI3, making the R5F1211CMSP#30 ideal for compact touch-enabled devices.
What is the data flash endurance specification for the R5F1211CMSP#30?
The R5F1211CMSP#30 specifies 1,000,000 write/erase cycles (typical) for its 1 KB data flash memory, with each rewrite unit sized at 32 bits. This endurance rating applies across the full operating voltage range (2.4–5.5 V) and temperature range (−40°C to +125°C), enabling reliable storage of calibration data, device configuration, or usage logs in industrial equipment where frequent parameter updates occur. Background operation is not supported during data flash writes in the R5F1211CMSP#30.
Can the R5F1211CMSP#30 operate without an external crystal?
Yes, the R5F1211CMSP#30 operates fully without an external crystal thanks to its factory-calibrated on-chip high-speed oscillator (1–16 MHz selectable) and low-speed subsystem oscillator (32.768 kHz). These oscillators meet timing requirements for UART communication, RTC operation, and real-time control loops across its rated temperature range. No external timing components are required for basic operation of the R5F1211CMSP#30.
R5F1211CMSP#30 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 10-LSSOP (0.173", 4.40mm Width)
- Series:
- RL78/G16
- Packaging:
- Tray
- Product Status:
- Last Time Buy
- 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#30 FAQ
1.How can I place an order for R5F1211CMSP#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F1211CMSP#30 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#30 reliable?
The price and inventory of R5F1211CMSP#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F1211CMSP#30 is usually 5 days.
3.What payment methods are accepted for R5F1211CMSP#30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F1211CMSP#30 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F1211CMSP#30?
R5F1211CMSP#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F1211CMSP#30 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#30?
For technical support, including R5F1211CMSP#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F1211CMSP#30 requirements.
6.How does Aetrix verify that R5F1211CMSP#30 is sourced from the original manufacturer or authorized distributors?
All R5F1211CMSP#30 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#30 meets industry standards.
7.What is the process for return or replacement of R5F1211CMSP#30?
All R5F1211CMSP#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F1211CMSP#30, 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#30 part is unused and in its original packaging.
Return procedure for R5F1211CMSP#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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