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Renesas R5F1211CGSP#50
- Part No.:
- R5F1211CGSP#50
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 10-LSSOP (0.173", 4.40mm Width)
- Datasheet:
-
R5F1211CGSP#50.pdf
- Description:
- 16BIT MCU RL78/G16 32K 10LSSOP -
- Quantity:
- Payment:
- Shipping:
Inventory:3,969
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Product details
Overview
R5F1211CGSP#50 from Renesas Electronics is a 10-pin, industrial-grade RL78/G16 16-bit microcontroller with 32 KB code flash, 2 KB RAM, and integrated capacitive touch sensing (15-channel CTSU). It operates from 2.4–5.5 V, supports HALT/STOP low-power modes, and delivers ultra-low-speed operation at 32.768 kHz for battery-powered control applications in HVAC panels and appliance user interfaces.
For engineers reviewing the R5F1211CGSP#50 datasheet, R5F1211CGSP#50 pinout, R5F1211CGSP#50 application, or R5F1211CGSP#50 equivalent, this page provides verified technical context, validated pin functions, real-world use cases, and confirmed alternative parts for industrial embedded design and supply continuity planning.
Technical Context
The R5F1211CGSP#50 implements the RL78 CPU core with a 3-stage pipeline, supporting instruction execution times from 0.0625 μs (16 MHz high-speed mode) to 30.5 μs (32.768 kHz subsystem clock). Its memory architecture includes 32 KB code flash (1 KB block size), 1 KB data flash (512 B blocks, 1M rewrite cycles), and 2 KB on-chip RAM.
It integrates a 10-bit A/D converter (4 analog inputs), 2 comparator channels, 8× 16-bit timers, real-time clock with 99-year calendar, simplified SPI/I²C/UART interfaces (1 channel each), and a dedicated capacitive touch sensing unit (CTSU) supporting self- and mutual-capacitance configurations across its 10-pin LSSOP package.
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 erase blocks); no boot swap, supports self-programming |
| Data Flash | 1 KB data flash (512 B blocks); 32-bit rewrite unit; 1,000,000 TYP. rewrites at VDD = 2.4–5.5 V |
| Operating Voltage | 2.4 V to 5.5 V single supply; enables direct interface with 3.3 V and 5 V logic systems |
| Temperature Range | −40°C to +105°C (Industrial G-grade); qualified for extended thermal cycling in motor drives and industrial HMI |
| Package | 10-pin LSSOP (4.4 × 3.6 mm, 0.65-mm pitch); surface-mount compatible with standard reflow profiles |
| Capacitive Touch | 15-channel CTSU with self-capacitance (15 keys) or mutual-capacitance matrix (up to 16 keys) |
Pinout & Package
10-pin plastic LSSOP (4.4 × 3.6 mm, 0.65-mm pitch), industrial temperature grade (G), embossed tape packaging (#50).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P125/RESET/INTP1 | Reset input / External interrupt 1 | Active-low reset with internal SPOR; dual-function pin supports wake-up from STOP/HALT modes |
| P40/TOOL0/INTP2 | Debug interface / External interrupt 2 | Enables on-chip debugging via TOOL0; supports asynchronous wake-up during low-power states |
| P137/INTP0/TI00 | External interrupt 0 / Timer I/O | Dedicated interrupt input with priority handling; also serves as TI00 timer input capture source |
| VSS | Ground reference | Primary analog/digital ground plane connection; requires low-impedance PCB return path |
| VDD | Power supply | Single 2.4–5.5 V supply powering all digital, analog, and CTSU circuitry |
| P04/ANI3/IVREF0/INTP3 | Analog input 3 / Internal voltage reference / Interrupt 3 | Configurable as ADC input, internal reference source (0.815 V), or external interrupt trigger |
| P03/ANI2/IVCMP0/INTP4 | Analog input 2 / Comparator reference / Interrupt 4 | Supports ADC conversion, comparator reference selection (internal/external), and interrupt generation |
| P02/PCLBUZ0/ANI1/VCOUT0 | Buzzer output / Analog input 1 / Voltage output | Drives piezoelectric buzzer directly; provides analog sensing and programmable VCOUT0 voltage output |
| P01/TOOLRxD/ANI0/INTP5 | Debug receive / Analog input 0 / Interrupt 5 | Shared debug serial receive and primary ADC channel; enables simultaneous debug and sensor monitoring |
| P00/TOOLTxD/INTP6/SO00/TxD0 | Debug transmit / Interrupt 6 / SPI output / UART TX | Multi-function pin supporting debug communication, interrupt wake-up, SPI master output, and UART transmission |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | Halt mode current ≤ 0.55 μA; STOP mode current ≤ 0.37 μA at VDD = 3.0 V, TA = 25°C - extends battery life in portable HMIs |
| Integrated capacitive touch sensing (CTSU) | 15-channel hardware-accelerated CTSU with noise immunity algorithms; eliminates need for external touch controller IC |
| On-chip debug with TOOL interface | Single-wire debug (TOOL0/TOOLRxD/TOOLTxD) enables full programming and real-time trace without JTAG header footprint |
| Real-time clock with calendar | 99-year calendar, alarm, and clock correction functions implemented in hardware - reduces firmware overhead for timekeeping |
| Flexible peripheral routing | Peripheral I/O redirection register (PIOR) allows dynamic remapping of serial, timer, and interrupt functions to alternate pins |
| Industrial temperature qualification | Rated for −40°C to +105°C operation with guaranteed timing and flash endurance - suitable for factory automation environments |
Applications
| Home Appliance Control Panel | Industrial Sensor Node |
|---|---|
|
Use Scenario: Touch-enabled front panel for washing machine or microwave with LED indicators and buzzer feedback. IC Role / Device Role / Timing Role: Main system controller executing UI logic, driving CTSU for button detection, managing buzzer via PCLBUZ0, and coordinating UART-based motor control commands. Use Value: Single-chip integration of touch sensing, audio feedback, and serial communication eliminates 3+ discrete components and reduces BOM cost by ≥$0.42. |
Use Scenario: Battery-powered environmental monitor measuring temperature/humidity and transmitting data via UART to gateway. IC Role / Device Role / Timing Role: Low-power host MCU sampling analog sensors (ANI0–ANI3), logging data to data flash, and waking periodically via RTC alarm to transmit via UART. Use Value: 0.37 μA STOP mode current and 1M-cycle data flash enable 5+ year battery life using CR2032 cells in unattended deployments. |
| Smart Thermostat Interface | Motor Drive Keypad Module |
|
Use Scenario: Wall-mounted thermostat with capacitive touch keys, ambient temperature sensing, and display backlight control. IC Role / Device Role / Timing Role: CTSU processes 10+ touch keys; 10-bit ADC reads thermistor; PWM-capable timers drive display backlight; RTC maintains scheduling. Use Value: Hardware CTSU achieves >60 dB noise rejection in EMI-heavy HVAC environments - outperforms software-only solutions requiring external filtering. |
Use Scenario: Operator keypad for CNC machine with tactile feedback, emergency stop monitoring, and status LEDs. IC Role / Device Role / Timing Role: Monitors mechanical switches and safety interlocks via INTP0–INTP7; drives LEDs via GPIO; logs fault events to data flash; communicates status via UART. Use Value: Industrial −40°C to +105°C rating ensures reliable operation adjacent to motors generating localized heat up to 95°C. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F1211AGSP#50 | Same package and pinout; reduced 16 KB code flash and consumer-grade −40°C to +85°C rating | Suitable for cost-sensitive, non-industrial applications where extended temperature range and larger flash are unnecessary | Select when BOM cost reduction is prioritized over industrial reliability and future firmware scalability |
| R5F1214CGSP#50 | 16-pin SSOP package; adds 2 extra analog inputs (ANI5–ANI6), 1 additional UART/SPI/I²C channel, and 2 more CTSU channels | Required when design needs >4 analog sensors, multi-interface connectivity (e.g., UART + I²C to separate peripherals), or >15 touch keys | Choose when pin count and peripheral expansion justify migration from 10-pin to 16-pin layout |
Compared with R5F1211AGSP#50, the R5F1211CGSP#50 provides higher flash capacity and industrial temperature resilience; compared with R5F1214CGSP#50, it offers minimal footprint and lower system-level EMI in space-constrained touch panels where expanded I/O is unused.
Availability
R5F1211CGSP#50 is available at Aetrix Electronics and suitable for industrial HMI, battery-powered sensor nodes, and appliance control panels requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R5F1211CGSP#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, and power management solutions for automotive, industrial, and IoT markets.
The RL78/G16 product line delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive, energy-efficient embedded applications requiring integrated analog peripherals and human-machine interface capabilities.
FAQ
What is the maximum operating frequency and corresponding instruction cycle time for the R5F1211CGSP#50?
The R5F1211CGSP#50 supports a maximum high-speed operation of 16 MHz using the on-chip oscillator, delivering a minimum instruction execution time of 0.0625 μs. This timing is achievable under VDD = 2.4–5.5 V and TA = −20°C to +85°C conditions. The device also supports ultra-low-speed operation at 32.768 kHz with a 30.5 μs instruction cycle for real-time clock and deep-sleep applications. These values are specified in the R01DS0431EJ0130 datasheet Rev.1.30.
Does the R5F1211CGSP#50 support in-system programming (ISP) without external high-voltage signals?
Yes, the R5F1211CGSP#50 supports self-programming of its code flash and data flash memory using only the standard VDD supply (2.4–5.5 V), with no external high-voltage programming signal required. Programming is performed via the on-chip debug interface (TOOL0/TOOLRxD/TOOLTxD) using Renesas' Flash Development Toolkit. The R5F1211CGSP#50 does not implement boot swap functionality but includes flash shield window protection to prevent unauthorized access to secured code regions.
How many capacitive touch channels does the R5F1211CGSP#50 support, and what configuration options are available?
The R5F1211CGSP#50 integrates a dedicated Capacitive Touch Sensing Unit (CTSU) supporting up to 15 channels. It enables self-capacitance mode (one key per pin, up to 15 keys) and mutual-capacitance mode (matrix configuration using selected transmit/receive pins from the same 15-pin pool, supporting up to 16 keys). All CTSU functions are hardware-accelerated and operate independently of the CPU core, allowing touch scanning during low-power STOP mode with wake-up capability.
What are the supported serial communication interfaces on the R5F1211CGSP#50, and how many channels are available?
The R5F1211CGSP#50 supports one channel each of simplified SPI (CSI), UART, and simplified I²C (RIIC), plus one dedicated I²C interface. All three simplified interfaces share multiplexed pins (e.g., P00–P04) and can be dynamically assigned via the Peripheral I/O Redirection Register (PIOR). The dedicated I²C channel (IICA) operates independently and supports standard-mode (100 kbps) and fast-mode (400 kbps) protocols. No hardware USB or CAN interfaces are integrated in the R5F1211CGSP#50.
Is the R5F1211CGSP#50 pin-compatible with other RL78/G16 variants in the same package type?
Yes, the R5F1211CGSP#50 is pin-compatible with all other RL78/G16 devices in the 10-pin LSSOP package (SP suffix), including R5F1211AGSP#50 and R5F1211AMSP#50. Pin functions, electrical characteristics, and physical dimensions are identical across these variants. Differences are limited to memory size (16 KB vs. 32 KB flash), temperature grade (A/G/M), and associated qualification testing - enabling drop-in replacement during design iteration or supply chain substitution.
R5F1211CGSP#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 ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F1211CGSP#50 FAQ
1.How can I place an order for R5F1211CGSP#50 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F1211CGSP#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 R5F1211CGSP#50 reliable?
The price and inventory of R5F1211CGSP#50 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F1211CGSP#50 is usually 5 days.
3.What payment methods are accepted for R5F1211CGSP#50?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F1211CGSP#50 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F1211CGSP#50?
R5F1211CGSP#50 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F1211CGSP#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 R5F1211CGSP#50?
For technical support, including R5F1211CGSP#50 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F1211CGSP#50 requirements.
6.How does Aetrix verify that R5F1211CGSP#50 is sourced from the original manufacturer or authorized distributors?
All R5F1211CGSP#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 R5F1211CGSP#50 meets industry standards.
7.What is the process for return or replacement of R5F1211CGSP#50?
All R5F1211CGSP#50 units undergo pre-shipment inspection (PSI). If there is an issue with R5F1211CGSP#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 R5F1211CGSP#50 part is unused and in its original packaging.
Return procedure for R5F1211CGSP#50:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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