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Renesas R5F1211CASP#50
- Part No.:
- R5F1211CASP#50
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 10-LSSOP (0.173", 4.40mm Width)
- Datasheet:
-
R5F1211CASP#50.pdf
- Description:
- 16BIT MCU RL78/G16 32K 10LSSOP -
- Quantity:
- Payment:
- Shipping:
Inventory:2,047
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Product details
Overview
R5F1211CASP#50 from Renesas Electronics is a 10-pin, 32 KB flash RL78/G16 16-bit microcontroller with 2 KB RAM, 8/10-bit ADC (4-channel), capacitive touch sensing (15-channel), and integrated low-power peripherals including HALT/STOP modes, RTC, and multiple serial interfaces (UART, SPI, I²C). It targets compact industrial HMI and battery-powered sensor nodes.
For engineers reviewing the R5F1211CASP#50 datasheet, R5F1211CASP#50 pinout, R5F1211CASP#50 application, or R5F1211CASP#50 equivalent, key selection criteria include its 10-pin LSSOP package, 2.4–5.5 V operation, −40°C to +85°C temperature grade (A), and integrated CTSU for touch-button control in space-constrained designs.
Technical Context
The R5F1211CASP#50 implements the RL78 CPU core with a 3-stage pipeline, supporting instruction execution times from 0.0625 μs (@16 MHz) to 30.5 μs (@32.768 kHz), enabling dynamic power/performance scaling. Its memory subsystem includes 32 KB code flash (1 KB blocks), 1 KB data flash (512 B blocks), and 2 KB SRAM.
Peripherals are tightly integrated: a 16-bit timer array (8 channels), real-time clock with calendar/alarm, watchdog timer, two comparators, and a dedicated capacitive touch sensing unit (CTSU) supporting self- and mutual-capacitance configurations - all accessible via multiplexed I/O on its 10-pin LSSOP footprint.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC with 3-stage pipeline, 1 MB address space |
| Flash / RAM | 32 KB code flash (1 KB erase blocks); 2 KB on-chip RAM |
| ADC | 8/10-bit resolution, 4 analog input channels, internal reference (0.815 V) |
| CTSU | Capacitive Touch Sensing Unit: 15 self-capacitance keys or up to 16 mutual-capacitance keys |
| Operating Voltage | 2.4 V to 5.5 V single supply - enables direct Li-ion or 3.3/5 V rail operation |
| Temp Range | −40°C to +85°C (A-grade), suitable for consumer and industrial ambient environments |
| Package | 10-pin LSSOP (4.4 × 3.6 mm, 0.65-mm pitch), embossed tape (#50) |
Pinout & Package
10-pin plastic LSSOP (4.4 × 3.6 mm, 0.65-mm pitch), RoHS-compliant, surface-mount package optimized for high-density PCB layouts and automated assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P125 | RESET/INTP1/VCOUT0/INTP0 | Active-low reset input with interrupt capability; supports voltage monitor output |
| P40 | TOOL0/INTP2/PCLBUZ0/TI01/TO01 | On-chip debug interface pin; also configurable as buzzer driver or timer I/O |
| P137 | INTP0/TI00 | Dedicated external interrupt input and timer channel 0 input capture/output compare |
| VSS | Ground | Primary digital ground reference for all internal circuits and I/O |
| VDD | Power Supply | Single 2.4–5.5 V supply powering core, flash, RAM, and peripherals |
| P04 | ANI3/IVREF0/INTP3/TS04/SDAA0 | Analog input channel 3; internal voltage reference source; touch sense input; I²C slave address A0 |
| P03 | ANI2/IVCMP0/INTP4/TS03/SCLA0 | Analog input channel 2; comparator input 0; touch sense input; I²C slave address A0 |
| P02 | PCLBUZ0/ANI1/VCOUT0/INTP7/TSCAP/TI01/TO01/SCK00/SCL00 | Buzzer driver; analog input 1; voltage comparator output; touch sense capacitor terminal; timer I/O; SPI/I²C clock |
| P01 | TOOLRxD/ANI0/INTP5/TS00/TI02/TO02/SI00/RxD0/SDA00 | Debug UART RX; analog input 0; interrupt 5; touch sense 0; timer I/O; SPI/I²C data in; UART/I²C data |
| P00 | TOOLTxD/INTP6/SO00/TxD0/SCLA0 | Debug UART TX; interrupt 6; SPI/I²C data out; UART/I²C data; I²C slave address A0 |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | Halt mode current <1.2 μA; STOP mode current <0.5 μA - extends battery life in always-on sensors |
| Integrated capacitive touch | CTSU eliminates need for external touch controller; supports 15-key self-cap or 16-key matrix without firmware overhead |
| Flexible clock system | High-speed on-chip oscillator (1–16 MHz, ±1.0% accuracy) eliminates external crystal in cost-sensitive designs |
| Robust debug & programming | On-chip debug interface (TOOL0/TOOLTxD/TOOLRxD) enables full SWD-style debugging and flash programming without external tools |
| Real-time clock with calendar | 99-year calendar, alarm, and clock correction - enables time-stamped logging and scheduled wake-up in sleep modes |
Applications
| Home Appliance Control Panel | Industrial Sensor Node |
|---|---|
Use Scenario: Touch-enabled front panel for microwave oven or coffee maker with LED indicators and buzzer feedback. IC Role / Device Role / Timing Role: Main controller executing UI logic, driving buzzer (PCLBUZ0), reading capacitive buttons (CTSU), and managing real-time cooking timers (RTC + TI0x). Use Value: Single-chip solution reduces BOM count by eliminating external touch controller, RTC IC, and buzzer driver - cuts board area by >30% vs. discrete implementation. | Use Scenario: Battery-powered temperature/humidity node transmitting data over UART to gateway every 5 minutes. IC Role / Device Role / Timing Role: System-on-chip managing sensor ADC reads (ANI0–ANI3), deep-sleep scheduling (STOP mode), RTC-based wake-up, and UART transmission (RxD0/TxD0). Use Value: 0.5 μA STOP current and fast wake-up (<4.2 μs) enable multi-year battery life on CR2032; integrated ADC avoids signal conditioning IC. |
| Smart Lighting Switch | Medical Patient Monitor Button |
Use Scenario: Wall-mounted wireless light switch with tactile-free touch surface and BLE co-processor interface. IC Role / Device Role / Timing Role: Touch acquisition engine (CTSU on P02/P03/P04), debounced button emulation, and UART communication to BLE module (RxD0/TxD0). Use Value: Self-capacitance CTSU achieves >6 mm overlay thickness tolerance; hardware-accelerated touch scanning frees CPU for comms handling. | Use Scenario: Low-risk patient-facing device requiring ESD-hardened, fail-safe button inputs (e.g., nurse call button). IC Role / Device Role / Timing Role: Safety-critical input processor using CTSU with noise rejection algorithms, independent watchdog (WDT), and dual-voltage monitoring (VCOUT0/IVREF0). Use Value: On-chip voltage comparator and reference enable hardware-level fault detection; CTSU immunity to moisture/sweat meets IEC 60601-1 touch safety requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F1211AASP#50 | 16 KB code flash (vs. 32 KB); identical pinout, peripherals, and package | Suitable for simpler firmware with lower memory footprint; same power/touch/RTC features | Select when application firmware fits within 16 KB and cost optimization is prioritized |
| R5F1214CASP#50 | 16-pin SSOP package; adds 2 extra ADC channels (6 total), 1 extra comparator, and 2 more touch channels (17 total) | Required when additional analog sensing or I/O expansion is needed beyond 10-pin limits | Choose for designs needing ≥6 analog inputs or >15 touch keys - no PCB redesign needed if layout预留 16-pin footprint |
Compared with R5F1211AASP#50, the R5F1211CASP#50 provides double flash capacity for feature-rich firmware; compared with R5F1214CASP#50, it trades I/O count and analog resources for minimal PCB area and lower component count in ultra-compact devices.
Availability
R5F1211CASP#50 is available at Aetrix Electronics and suitable for home appliance control panels, industrial sensor nodes, and smart lighting switches requiring stable component supply and long-term manufacturability.
Supply support for R5F1211CASP#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 trusted embedded solutions for automotive, industrial, infrastructure, and IoT markets.
The RL78/G16 product line delivers true low-power MCU performance (61 µA/MHz) with integrated capacitive touch, RTC, and robust analog peripherals - designed specifically for cost-sensitive, space-constrained HMI and sensor-edge applications.
FAQ
What is the maximum operating frequency of the R5F1211CASP#50?
The R5F1211CASP#50 supports a maximum CPU operating frequency of 16 MHz using its high-speed on-chip oscillator. At this speed, the minimum instruction execution time is 0.0625 μs. The oscillator offers selectable frequencies (1/2/4/8/16 MHz) with ±1.0% accuracy across −20°C to +85°C, eliminating need for external crystals in most applications.
Does the R5F1211CASP#50 support in-system programming (ISP)?
Yes, the R5F1211CASP#50 supports self-programming of its code and data flash memory via the on-chip debug interface (TOOL0/TOOLTxD/TOOLRxD pins). It includes flash shield window protection and erase-before-write functionality. No boot swap is implemented, but background operation is not required since programming occurs during debug session or controlled firmware update sequences.
How many capacitive touch channels does the R5F1211CASP#50 support?
The R5F1211CASP#50 integrates a Capacitive Touch Sensing Unit (CTSU) supporting up to 15 self-capacitance channels or up to 16 mutual-capacitance keys using matrix configuration. All CTSU channels are accessible through dedicated TSCAP and TSxx pins (e.g., TS00–TS04), with hardware-accelerated scanning and noise cancellation built into the peripheral.
What are the power supply requirements for the R5F1211CASP#50?
The R5F1211CASP#50 operates from a single 2.4 V to 5.5 V supply on VDD, with VSS as the reference ground. It includes an on-chip selectable power-on-reset (SPOR) circuit with three reset threshold levels. The device draws as little as 0.5 μA in STOP mode and 1.2 μA in HALT mode, making it suitable for battery-powered applications with multi-year runtime expectations.
Is the R5F1211CASP#50 pin-compatible with other RL78/G16 variants?
Yes, the R5F1211CASP#50 shares identical pinout and electrical characteristics with all other 10-pin RL78/G16 devices in LSSOP package (e.g., R5F1211AASP#50, R5F1211CGSP, R5F1211CMSP). Function mapping (e.g., CTSU, ADC, UART) is consistent across the 10-pin family - only flash size, temperature grade, and memory configuration differ between part numbers.
R5F1211CASP#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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F1211CASP#50 FAQ
1.How can I place an order for R5F1211CASP#50 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F1211CASP#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 R5F1211CASP#50 reliable?
The price and inventory of R5F1211CASP#50 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F1211CASP#50 is usually 5 days.
3.What payment methods are accepted for R5F1211CASP#50?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F1211CASP#50 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F1211CASP#50?
R5F1211CASP#50 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F1211CASP#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 R5F1211CASP#50?
For technical support, including R5F1211CASP#50 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F1211CASP#50 requirements.
6.How does Aetrix verify that R5F1211CASP#50 is sourced from the original manufacturer or authorized distributors?
All R5F1211CASP#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 R5F1211CASP#50 meets industry standards.
7.What is the process for return or replacement of R5F1211CASP#50?
All R5F1211CASP#50 units undergo pre-shipment inspection (PSI). If there is an issue with R5F1211CASP#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 R5F1211CASP#50 part is unused and in its original packaging.
Return procedure for R5F1211CASP#50:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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