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Renesas R5F1211AMSP#10
- Part No.:
- R5F1211AMSP#10
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 10-LSSOP (0.173", 4.40mm Width)
- Datasheet:
-
R5F1211AMSP#10.pdf
- Description:
- 16BIT MCU RL78/G16 16K 10LSSOP -
- Quantity:
- Payment:
- Shipping:
Inventory:1,046
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Product details
Overview
R5F1211AMSP#10 from Renesas Electronics is a 10-pin, 16 KB flash, 2 KB RAM RL78/G16 16-bit microcontroller optimized for ultra-low-power industrial sensing and control. It operates from 2.4–5.5 V, supports HALT/STOP modes, integrates an 8/10-bit ADC (4-channel), capacitive touch sensing unit (15-channel), and real-time clock with calendar function - deployed in battery-powered HVAC sensors and industrial panel controls.
For engineers reviewing the R5F1211AMSP#10 datasheet, R5F1211AMSP#10 pinout, R5F1211AMSP#10 application, or R5F1211AMSP#10 equivalent, key selection criteria include its −40°C to +125°C extended temperature rating (M-grade), LSSOP-10 package footprint, on-chip high-speed oscillator accuracy (±1.5% at TA = −40 to +125°C), and integrated CTSU for touch interface without external components.
Technical Context
The R5F1211AMSP#10 implements the RL78 CPU core with a 3-stage pipeline CISC architecture, enabling instruction execution times from 0.0625 μs (@16 MHz) to 30.5 μs (@32.768 kHz). Its memory subsystem includes 16 KB code flash (1 KB block size), 1 KB data flash (512 B block), and 2 KB SRAM - all accessible under single-supply operation.
Peripheral integration centers on low-power system control: one 12-bit interval timer, eight 16-bit timer channels, watchdog timer with dedicated low-speed oscillator, and simplified SPI/I²C/UART interfaces (1 channel each). The CTSU supports self-capacitance (15 keys) and mutual-capacitance (16-key matrix) configurations via dedicated TSCAP and TSxx pins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC with 3-stage pipeline; enables deterministic timing for real-time control loops |
| Flash / RAM | 16 KB code flash (1 KB erase blocks), 1 KB data flash (512 B blocks), 2 KB SRAM - supports field firmware updates and parameter storage |
| Operating Voltage | 2.4–5.5 V single supply - compatible with industrial 3.3 V and 5 V rails and wide-range battery inputs |
| Temperature Range | −40°C to +125°C (M-grade) - qualified for under-hood automotive and industrial motor drive environments |
| ADC | 8/10-bit resolution, 4 analog input channels, internal reference (0.815 V), temperature sensor - enables direct sensor signal acquisition without external references |
| CTSU | 15-channel capacitive touch sensing unit - supports self-capacitance (15 keys) and mutual-capacitance (16-key matrix) for robust HMI in noisy environments |
| Oscillator Accuracy | ±1.5% over −40°C to +125°C (high-speed on-chip oscillator @16 MHz) - eliminates need for external crystal in cost-sensitive applications |
Pinout & Package
Package: 10-pin plastic LSSOP (4.4 × 3.6 mm, 0.65-mm pitch), surface-mount, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P125/RESET/INTP1 | Reset input / External interrupt 1 | Active-low reset with internal pull-up; dual-function pin enables hardware reset or edge-triggered wake-up from STOP mode |
| P40/TOOL0/INTP2 | Debug interface / External interrupt 2 | Supports on-chip debugging via TOOL0; also serves as configurable interrupt source for event-driven wake-up |
| P137/INTP0/TI00 | External interrupt 0 / Timer I/O 0 | Dual-purpose pin for priority interrupt handling or 16-bit timer capture/compare operation |
| VSS | Ground | Analog/digital common reference; requires low-impedance PCB connection to minimize noise coupling into ADC/CTSU |
| VDD | Power supply | Single 2.4–5.5 V supply for entire IC; decoupling capacitor required per datasheet layout guidelines |
| P04/ANI3/IVREF0/INTP3 | Analog input 3 / Internal voltage reference / Interrupt 3 | Configurable as ADC input, internal reference source, or interrupt trigger - enables flexible sensor interface design |
| P03/ANI2/IVCMP0/INTP4 | Analog input 2 / Comparator input / Interrupt 4 | Supports analog sensing or comparator threshold detection with interrupt generation on level change |
| P02/PCLBUZ0/ANI1/VCOUT0/INTP7/TSCAP | Buzzer output / Analog input 1 / Voltage output / Touch sense capacitor | Multi-function pin critical for CTSU operation (TSCAP), analog measurement (ANI1), and buzzer drive (PCLBUZ0) |
| P01/TOOLRxD/ANI0/INTP5/TS00 | Debug receive / Analog input 0 / Interrupt 5 / Touch sense 0 | Combines debug communication, primary ADC channel, and first CTSU electrode - simplifies board routing |
| P00/TOOLTxD/INTP6/SO00/TxD0 | Debug transmit / Interrupt 6 / SPI output / UART transmit | Shared debug, serial communication, and interrupt functionality - reduces pin count while maintaining debug access |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 61 µA/MHz active current at TA = 125°C - extends battery life in remote industrial monitors |
| On-chip high-speed oscillator | 16 MHz ±1.5% accuracy across −40°C to +125°C - eliminates external crystal and associated BOM cost |
| Capacitive touch sensing unit (CTSU) | 15-channel self-capacitance or 16-key mutual-capacitance matrix - enables robust touch HMI without external ICs or calibration |
| Real-time clock with calendar | 99-year calendar, alarm, and clock correction - supports time-stamped logging and scheduled operations in standalone controllers |
| Integrated power management | HALT and STOP modes with fast wake-up (<1 µs from HALT) - minimizes energy use during idle periods in sensor polling cycles |
Applications
| Industrial Temperature Sensor Node | Touch-Controlled HVAC Panel |
|---|---|
Use Scenario: Standalone wireless temperature/humidity node mounted in factory machinery enclosures. IC Role / Device Role / Timing Role: Main controller executing sensor acquisition, RTC-based sampling scheduling, and low-power radio wake-up coordination. Use Value: M-grade temperature range (−40°C to +125°C) and 61 µA/MHz operation enable reliable deployment near heat sources with multi-year battery life. | Use Scenario: Wall-mounted HVAC interface with 5-key touch panel and local display driver. IC Role / Device Role / Timing Role: Touch controller and system manager handling CTSU scanning, button debouncing, display update timing, and fan speed PWM generation. Use Value: Integrated 15-channel CTSU eliminates external touch controller IC; on-chip 16-bit timers generate precise PWM for fan control without external timing components. |
| Smart Appliance Motor Control Module | Programmable Industrial Timer Relay |
Use Scenario: Compact motor driver module for washing machine drum control with speed feedback and fault monitoring. IC Role / Device Role / Timing Role: Real-time motor commutation supervisor using TI00/TI01 timer inputs for hall-effect sensor decoding and TO00/TO01 outputs for gate driver timing. Use Value: Eight 16-bit timer channels support simultaneous motor phase timing, current sampling windows, and safety watchdog intervals within a single chip. | Use Scenario: DIN-rail mounted timer relay with user-programmable on/off delays, calendar-based scheduling, and LED status indication. IC Role / Device Role / Timing Role: Primary timing engine managing RTC calendar, interval timer for delay counting, and GPIO-driven relay/LED control. Use Value: On-chip RTC with 99-year calendar and alarm function enables complex scheduling (e.g., weekly HVAC start/stop) without external timekeeping ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F1211AGSP#10 | Same package and pinout; rated for −40°C to +105°C (G-grade) instead of +125°C | Suitable for industrial control panels not exposed to extreme ambient heat | Select when operating temperature does not exceed +105°C to reduce cost; identical firmware compatibility |
| R5F1214AMSP#10 | 16-pin SSOP package; adds 2 extra ADC channels (6 total), 1 extra UART/SPI/I²C channel, and 2 additional CTSU channels | Required for designs needing more analog inputs or serial interfaces (e.g., multi-sensor gateway) | Choose when pin count and peripheral expansion are needed; same core, memory, and temperature rating |
Compared with R5F1211AGSP#10, the R5F1211AMSP#10 provides extended thermal margin for under-hood or high-temperature enclosure use; compared with R5F1214AMSP#10, it offers identical performance in a smaller 10-pin footprint ideal for space-constrained sensor nodes.
Availability
R5F1211AMSP#10 is available at Aetrix Electronics and suitable for industrial temperature monitoring, touch HMI interfaces, smart appliance control, and programmable timer relays requiring stable component supply across extended temperature ranges.
Supply support for R5F1211AMSP#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 CTSU, RTC, and analog peripherals - designed specifically for cost-sensitive, battery-operated, and thermally demanding industrial control applications.
FAQ
What is the maximum operating temperature specification for the R5F1211AMSP#10?
The R5F1211AMSP#10 is rated for operation from −40°C to +125°C (M-grade industrial qualification). This extended temperature range is confirmed in the datasheet's "Operating ambient temperature" section and applies across the full 2.4–5.5 V supply range, making it suitable for under-hood automotive modules and high-temperature industrial enclosures where the R5F1211AMSP#10 must maintain functional reliability.
Does the R5F1211AMSP#10 support in-circuit debugging without external hardware?
Yes, the R5F1211AMSP#10 supports on-chip debugging via the TOOL0 (P40) and TOOLRxD/TOOLTxD (P01/P00) pins. These pins provide full SWD-like debug capability including breakpoint setting, register inspection, and flash programming - no external debugger IC is required, though a standard Renesas E2 emulator or compatible tool is needed for host-side interface. This capability is integral to the R5F1211AMSP#10's development workflow.
How many capacitive touch channels does the R5F1211AMSP#10 support, and what configuration options exist?
The R5F1211AMSP#10 integrates a 15-channel capacitive touch sensing unit (CTSU). It supports self-capacitance mode (15 independent keys, one per pin) and mutual-capacitance mode (up to 16 keys in matrix configuration using selected transmit/receive pins). Configuration is software-controlled via the CTSU registers, and all required electrodes connect directly to dedicated TSxx and TSCAP pins on the R5F1211AMSP#10 - no external components are needed.
Can the R5F1211AMSP#10 execute code while rewriting its data flash memory?
No, the R5F1211AMSP#10 does not support background operation (BGO) for data flash writes. During data flash rewrite operations, instruction execution from code flash memory is halted - the CPU cannot fetch or execute instructions until the rewrite completes. This behavior is explicitly documented in the datasheet under "Data flash memory" features and affects real-time responsiveness during firmware parameter updates in the R5F1211AMSP#10.
What oscillator options are available on the R5F1211AMSP#10, and how accurate is the high-speed on-chip oscillator?
The R5F1211AMSP#10 includes a high-speed on-chip oscillator selectable at 16/8/4/2/1 MHz, with ±1.5% frequency accuracy over −40°C to +125°C (M-grade). It also integrates a dedicated low-speed on-chip oscillator for the watchdog timer and real-time clock. No external crystal is required for basic operation, though XT1/XT2 pins (not present on 10-pin variant) allow optional external crystal use in larger packages - not applicable to the R5F1211AMSP#10.
R5F1211AMSP#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:
- 16KB (16K 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:
R5F1211AMSP#10 FAQ
1.How can I place an order for R5F1211AMSP#10 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F1211AMSP#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 R5F1211AMSP#10 reliable?
The price and inventory of R5F1211AMSP#10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F1211AMSP#10 is usually 5 days.
3.What payment methods are accepted for R5F1211AMSP#10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F1211AMSP#10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F1211AMSP#10?
R5F1211AMSP#10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F1211AMSP#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 R5F1211AMSP#10?
For technical support, including R5F1211AMSP#10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F1211AMSP#10 requirements.
6.How does Aetrix verify that R5F1211AMSP#10 is sourced from the original manufacturer or authorized distributors?
All R5F1211AMSP#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 R5F1211AMSP#10 meets industry standards.
7.What is the process for return or replacement of R5F1211AMSP#10?
All R5F1211AMSP#10 units undergo pre-shipment inspection (PSI). If there is an issue with R5F1211AMSP#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 R5F1211AMSP#10 part is unused and in its original packaging.
Return procedure for R5F1211AMSP#10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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