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Renesas R5F1211CMSP#10
- Part No.:
- R5F1211CMSP#10
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 10-LSSOP (0.173", 4.40mm Width)
- Datasheet:
-
R5F1211CMSP#10.pdf
- Description:
- 16BIT MCU RL78/G16 32K 10LSSOP -
- Quantity:
- Payment:
- Shipping:
Inventory:1,066
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Product details
Overview
R5F1211CMSP#10 from Renesas Electronics is a 10-pin, 32 KB flash RL78/G16 microcontroller optimized for ultra-low-power industrial HMI and sensor-edge applications. It features a 16 MHz RL78 CPU core, 2 KB on-chip RAM, 1 KB data flash, 15-channel capacitive touch sensing unit (CTSU), 8/10-bit ADC with up to 4 analog inputs, and operates across −40°C to +125°C for M-grade industrial reliability.
For engineers reviewing the R5F1211CMSP#10 datasheet, R5F1211CMSP#10 pinout, R5F1211CMSP#10 application, or R5F1211CMSP#10 equivalent, key selection criteria include its 10-pin LSSOP package, integrated CTSU for touch-button interfaces, real-time clock with calendar function, and support for UART/SPI/I²C serial communication in space-constrained embedded designs.
Technical Context
The R5F1211CMSP#10 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 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 blocks, 1M rewrite cycles), and 2 KB SRAM - all accessible under single 2.4–5.5 V supply operation.
Peripheral integration centers on low-power system control: 16-bit timer array (8 channels), watchdog timer with dedicated low-speed oscillator, RTC2 with 99-year calendar and alarm, 1–2 comparators with selectable reference sources, and a self-capacitance/mutual-capacitance CTSU supporting up to 15 keys or 16-key matrix configurations - all managed via hardware-accelerated firmware routines.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RL78 3-stage pipeline CISC; supports 0.0625 μs min. instruction time @16 MHz |
| Flash Memory | 32 KB code flash (1 KB erase blocks); no boot swap, flash shield window enabled |
| Data Flash | 1 KB (512 B blocks); 32-bit rewrite units; 1,000,000 TYP. rewrites at VDD = 2.4–5.5 V |
| Operating Temp | −40°C to +125°C (M-grade industrial qualification) |
| Supply Voltage | Single 2.4 V to 5.5 V rail; HALT/STOP low-power modes supported |
| Analog Peripherals | 8/10-bit ADC (4-channel input), 2 comparators, internal 0.815 V reference, temperature sensor |
| Touch Interface | Capacitive Touch Sensing Unit (CTSU): 15 self-capacitance or 16 mutual-capacitance keys |
Pinout & Package
Package: 10-pin plastic LSSOP (4.4 × 3.6 mm, 0.65-mm pitch), RoHS-compliant, M-grade industrial temperature rating (−40°C to +125°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P125/RESET/INTP1 | Reset Input / External Interrupt | Active-low reset with glitch filter; dual-function interrupt input (INTP1) |
| P40/TOOL0/INTP2 | Debug Interface / Interrupt | On-chip debug tool interface (TOOL0); external interrupt source (INTP2) |
| P137/INTP0/TI00 | External Interrupt / Timer Input | Primary external interrupt (INTP0); timer input capture (TI00) for edge-triggered timing |
| VSS | Ground Reference | Dedicated analog/digital ground pin; decoupling critical for ADC/CTSU stability |
| VDD | Power Supply | Single 2.4–5.5 V supply; powers all digital, analog, and CTSU circuitry |
| P04/ANI3/IVREF0/INTP3 | Analog Input / Ref Source / Interrupt | ADC channel 3 input; internal voltage reference output (IVREF0); interrupt trigger (INTP3) |
| P03/ANI2/IVCMP0/INTP4 | Analog Input / Comparator Ref / Interrupt | ADC channel 2 input; comparator reference (IVCMP0); interrupt source (INTP4) |
| P02/PCLBUZ0/ANI1/VCOUT0 | Buzzer Driver / Analog Input / Cap Sense | Programmable buzzer output; ADC channel 1; CTSU electrode (TSCAP); VCOUT0 for charge pump |
| P01/TOOLRxD/ANI0/INTP5 | Debug RX / Analog Input / Interrupt | On-chip debug serial receive; ADC channel 0; external interrupt (INTP5); touch sense TS00 |
| P00/TOOLTxD/INTP6/SO00 | Debug TX / Interrupt / SPI Output | On-chip debug serial transmit; external interrupt (INTP6); SPI master output (SO00) |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-Low-Power Operation | 61 µA/MHz active current at TA = 125°C; HALT/STOP modes reduce leakage to sub-µA levels |
| Integrated Capacitive Touch | Hardware-accelerated CTSU supports self/mutual capacitance without host CPU overhead |
| Real-Time Calendar Function | RTC2 provides 99-year calendar, alarm, and automatic clock correction - no external crystal required |
| Flexible Serial Interfaces | Configurable CSI (SPI-like), UART, and I²C up to 3 channels; simplified I²C supports multi-master |
| Robust Industrial Qualification | M-grade temp range (−40°C to +125°C), ±1.0% high-speed oscillator accuracy, SPOR reset circuit |
Applications
| Industrial Control Panel | Smart Appliance Interface |
|---|---|
|
Use Scenario: Touch-based operator interface on HVAC controllers, PLC front panels, or motor drives with limited PCB area. IC Role / Device Role / Timing Role: Main HMI controller managing capacitive buttons, LED indicators, and serial communication to host MCU. Use Value: 10-pin LSSOP footprint minimizes board space; CTSU eliminates external touch IC; RTC2 enables scheduled operation without external timekeeping. |
Use Scenario: User interface for refrigerators, washing machines, or ovens requiring reliable touch response in humid, temperature-variable environments. IC Role / Device Role / Timing Role: Dedicated touch and sensor manager interfacing with thermistors, relays, and display drivers. Use Value: M-grade temperature rating ensures stable CTSU performance at +125°C ambient; integrated ADC and comparators reduce external component count. |
| Energy Monitoring Sensor Node | Industrial IoT Edge Node |
|
Use Scenario: Battery-powered power meter or environmental sensor node collecting voltage/current/temperature data. IC Role / Device Role / Timing Role: Low-power data acquisition engine with wake-on-interrupt, ADC sampling, and UART/CSI telemetry transmission. Use Value: 61 µA/MHz active current extends battery life; STOP mode consumes <1 µA; data flash stores calibration coefficients non-volatilely. |
Use Scenario: Condition-monitoring module on factory equipment, performing vibration analysis or thermal trending with local decision logic. IC Role / Device Role / Timing Role: Edge intelligence hub aggregating sensor inputs, running lightweight anomaly detection, and reporting via UART or I²C to gateway. Use Value: 32 KB flash accommodates firmware + OTA update buffer; CTSU enables maintenance-mode configuration via touch; RTC2 timestamps events reliably. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F1211AMSP#10 | Same 10-pin LSSOP package and peripherals, but A-grade (−40°C to +85°C) and 16 KB flash | Suitable for consumer-grade appliances where extended temperature range is unnecessary | Select when cost sensitivity outweighs industrial temp requirement and 16 KB flash suffices |
| R5F1214CMSP#10 | 16-pin SSOP variant with identical M-grade rating, 32 KB flash, 2 KB RAM, and expanded I/O (16 pins vs. 10) | Enables additional analog inputs, UART channels, or GPIO for more complex HMI or sensor fusion | Choose when design requires ≥12 GPIO, >4 ADC channels, or dual serial interfaces without changing MCU family |
Compared with R5F1211AMSP#10 and R5F1214CMSP#10, the R5F1211CMSP#10 uniquely balances industrial temperature resilience, minimal 10-pin footprint, and full 32 KB flash capacity - making it optimal for space-constrained, high-reliability touch interfaces where peripheral expansion is not required.
Availability
R5F1211CMSP#10 is available at Aetrix Electronics and suitable for industrial control panels, smart appliance interfaces, and energy monitoring sensor nodes requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R5F1211CMSP#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 true low-power performance with integrated capacitive touch, RTC, and robust industrial qualification - designed specifically for cost-sensitive, space-constrained HMI and sensor-edge applications.
FAQ
What is the maximum operating frequency and instruction timing of the R5F1211CMSP#10?
The R5F1211CMSP#10 features an RL78 CPU core with configurable high-speed operation up to 16 MHz, delivering a minimum instruction execution time of 0.0625 μs. It also supports ultra-low-speed operation at 32.768 kHz (30.5 μs per instruction) using the subsystem clock - enabling dynamic power/performance scaling within a single R5F1211CMSP#10 device.
Does the R5F1211CMSP#10 support background data flash rewriting while executing code from main flash?
No, the R5F1211CMSP#10 does not support background operation (BGO) for data flash. During data flash rewriting, instruction execution from code flash memory is halted. This behavior is explicitly documented in the R5F1211CMSP#10 datasheet and requires firmware coordination to suspend critical tasks during write cycles.
How many capacitive touch channels does the R5F1211CMSP#10 support, and what configuration methods are available?
The R5F1211CMSP#10 integrates a dedicated Capacitive Touch Sensing Unit (CTSU) supporting up to 15 self-capacitance keys (one per pin) or up to 16 mutual-capacitance keys using matrix configuration across its 15 available CTSU-capable pins. Both modes operate with hardware acceleration and require no CPU intervention during sensing - a core capability of the R5F1211CMSP#10.
What are the oscillator options and accuracy specifications for the R5F1211CMSP#10?
The R5F1211CMSP#10 includes a high-speed on-chip oscillator with selectable frequencies of 16/8/4/2/1 MHz. At VDD = 2.4–5.5 V and TA = −20°C to +85°C, frequency accuracy is ±1.0%. For its M-grade rating (−40°C to +125°C), accuracy degrades to ±1.5% at +85°C to +125°C - fully specified in the R5F1211CMSP#10 datasheet and validated for industrial use.
Is the R5F1211CMSP#10 pin-compatible with other RL78/G16 variants such as the R5F1214C or R5F1216C?
No, the R5F1211CMSP#10 is not pin-compatible with higher-pin-count RL78/G16 variants like the R5F1214C (16-pin) or R5F1216C (20-pin). Its 10-pin LSSOP package has a unique pinout defined in Figure 1-1 and Table 1-2 of the R5F1211CMSP#10 datasheet. Migration to larger packages requires PCB redesign and signal remapping - confirmed by Renesas' official RL78/G16 package comparison documentation.
R5F1211CMSP#10 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 10-LSSOP (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:
- 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#10 FAQ
1.How can I place an order for R5F1211CMSP#10 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F1211CMSP#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 R5F1211CMSP#10 reliable?
The price and inventory of R5F1211CMSP#10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F1211CMSP#10 is usually 5 days.
3.What payment methods are accepted for R5F1211CMSP#10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F1211CMSP#10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F1211CMSP#10?
R5F1211CMSP#10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F1211CMSP#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 R5F1211CMSP#10?
For technical support, including R5F1211CMSP#10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F1211CMSP#10 requirements.
6.How does Aetrix verify that R5F1211CMSP#10 is sourced from the original manufacturer or authorized distributors?
All R5F1211CMSP#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 R5F1211CMSP#10 meets industry standards.
7.What is the process for return or replacement of R5F1211CMSP#10?
All R5F1211CMSP#10 units undergo pre-shipment inspection (PSI). If there is an issue with R5F1211CMSP#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 R5F1211CMSP#10 part is unused and in its original packaging.
Return procedure for R5F1211CMSP#10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F1211CMSP#10 Tags
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