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Renesas R5F10266GSM#35
- Part No.:
- R5F10266GSM#35
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 20-LSSOP (0.173", 4.40mm Width)
- Datasheet:
-
R5F10266GSM#35.pdf
- Description:
- IC MCU 16BIT 2KB FLASH 20LSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,645
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Product details
Overview
R5F10266GSM#35 from Renesas Electronics is a 20-pin RL78/G12 16-bit microcontroller designed for ultra-low-power industrial embedded control, featuring 2 KB code flash, 256 B RAM, 2 KB data flash, and operation from 1.8 V to 5.5 V across –40°C to +105°C. It delivers 31 DMIPS at 24 MHz with true low-power modes (HALT/STOP/SNOOZE), integrated 10-bit A/D converter (11 channels), and dual serial interfaces (2× CSI, 2× I²C, 1× UART) for sensor hub and smart actuator applications.
For engineers reviewing the R5F10266GSM#35 datasheet, R5F10266GSM#35 pinout, R5F10266GSM#35 application, or R5F10266GSM#35 equivalent, this page provides verified technical context, package-validated pin functions, real-world use scenarios, and two confirmed alternative parts - all aligned to the R5F10266GSM#35's G-grade industrial temperature rating, TSSOP20 package, and R5F102-series peripheral set including CRC, DMA, and on-chip debug.
Technical Context
The R5F10266GSM#35 implements the RL78 CPU core with 3-stage pipeline CISC architecture, 1 MB address space, and selectable high-speed (0.04167 µs @24 MHz) or ultra-low-speed (1 µs @1 MHz) instruction execution. Its power management includes on-chip POR, 12-level LVD, and dedicated 15 kHz low-speed oscillator for watchdog operation independent of main clock.
Peripheral integration includes 4-channel 16-bit TAU timer with PWM capability, 12-bit interval timer, window watchdog, 2-channel DMA controller, and hardware BCD correction. The device supports background data flash rewriting (BGO) at full VDD range (1.8–5.5 V) with 1M write cycles, but excludes self-programming functionality per datasheet Note 2.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline, 1 MB address space, 8×8-bit register banks ×4 |
| Operating Voltage | 1.8 V to 5.5 V - enables direct interface with 1.8/2.5/3.3/5 V logic and battery-powered operation |
| Temperature Range | –40°C to +105°C (G-grade) - qualified for industrial motor control, HVAC, and factory automation environments |
| Memory Configuration | 2 KB code flash + 2 KB data flash + 256 B RAM - supports firmware updates and parameter storage without external EEPROM |
| ADC Performance | 10-bit resolution, 11 input channels, internal 1.45 V reference & temperature sensor - enables standalone thermal monitoring and analog sensor fusion |
| Serial Interfaces | 2× CSI (SPI-like), 2× simplified I²C, 1× UART - allows concurrent communication with multiple sensors, displays, and host controllers |
| Power Modes | HALT, STOP, SNOOZE - achieves 63 μA/MHz active current and sub-μA standby, critical for energy-harvesting designs |
Pinout & Package
TSSOP20 package (4.4 × 6.5 mm, 0.65-mm pitch), JEDEC MS-013AC compliant, lead-free, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/ANI16/PCLBUZ0/SCK00/SCL00 | Port 1 bit 0 / Analog Input 16 / Programmable Clock/Buzzer Output / SPI Clock 0 / I²C Clock 0 | Multi-function pin supporting timer-driven buzzer tone generation, synchronous serial master/slave, and analog sensing |
| P11/ANI17/SI00/RxD0/SDA00/TOOLRxD | Port 1 bit 1 / Analog Input 17 / SPI Data In 0 / UART Receive / I²C Data 0 / Debug RX | Shared serial receive path for UART, I²C, and SPI - enables flexible peripheral routing via PIOR register |
| P12/ANI18/SO00/TxD0/TOOLTxD | Port 1 bit 2 / Analog Input 18 / SPI Data Out 0 / UART Transmit / Debug TX | Dual-role transmit pin for UART and SPI, plus analog input - reduces external level-shifting in mixed-voltage systems |
| P13/ANI19/TI00/TO00/INTP2 | Port 1 bit 3 / Analog Input 19 / Timer Input 0 / Timer Output 0 / Interrupt 2 | Hardware timer capture/compare channel with interrupt capability - ideal for pulse-width measurement and motor commutation |
| P14/ANI20/TI01/TO01/INTP3 | Port 1 bit 4 / Analog Input 20 / Timer Input 1 / Timer Output 1 / Interrupt 3 | Second timer I/O pair with interrupt support - enables dual-edge timing or complementary PWM outputs |
| P20/ANI0/AVREFP | Port 2 bit 0 / Analog Input 0 / ADC Positive Reference | Configurable as primary ADC reference voltage source or analog input - improves measurement accuracy in ratiometric sensor designs |
| P21/ANI1/AVREFM | Port 2 bit 1 / Analog Input 1 / ADC Negative Reference | Provides differential reference for AVREFP - enables true differential ADC measurements without external op-amps |
| P22/ANI2 | Port 2 bit 2 / Analog Input 2 | Dedicated analog input with internal sampling capacitor - supports high-impedance sensor interfacing |
| P23/ANI3 | Port 2 bit 3 / Analog Input 3 | Additional analog input channel - expands multi-sensor monitoring capability within same package |
| P40/KR0/TOOL0 | Port 4 bit 0 / Key Return 0 / Debug Interface | Supports capacitive touch key scanning and in-circuit debugging - eliminates need for external debug headers |
| P41/ANI22/SO01/SDA01/TI02/TO02/INTP1 | Port 4 bit 1 / Analog Input 22 / SPI Out 1 / I²C Data 1 / Timer Input 2 / Timer Output 2 / Interrupt 1 | High-density multi-function pin enabling simultaneous analog acquisition, serial comms, and precise timing |
| P42/ANI21/SCK01/SCL01/TI03/TO03 | Port 4 bit 2 / Analog Input 21 / SPI Clock 1 / I²C Clock 1 / Timer Input 3 / Timer Output 3 | Secondary serial clock with timer I/O - allows independent clock domains for isolated sensor subsystems |
| P60/KR4/SCLA0/(TxD0) | Port 6 bit 0 / Key Return 4 / I²C Clock A / UART Transmit (remappable) | N-ch open-drain I/O with 6 V tolerance - directly interfaces 5 V I²C buses and legacy UART peripherals |
| P61/KR5/SDAA0/(RxD0) | Port 6 bit 1 / Key Return 5 / I²C Data A / UART Receive (remappable) | Complementary 6 V-tolerant I²C data line - supports hot-plug I²C devices and mixed-voltage bus arbitration |
| P121/KR3/X1/(TI03)/(INTP3) | Port 12 bit 1 / Key Return 3 / Crystal Oscillator Input / Timer Input 3 / Interrupt 3 | Primary crystal input with key scan and timer input sharing - reduces pin count in space-constrained designs |
| P122/KR2/X2/EXCLK/(TI02)/(INTP2) | Port 12 bit 2 / Key Return 2 / Crystal Oscillator Output / External Clock Input / Timer Input 2 / Interrupt 2 | Crystal output or external clock input with remappable timer/interrupt - enables precision timing from external sources |
| P125/KR1/SI01/RESET | Port 12 bit 5 / Key Return 1 / SPI Data In 1 / Reset Input | Hardware reset with SPI input function - ensures reliable boot while retaining serial programming capability |
| P137/INTP0 | Port 13 bit 7 / Interrupt 0 | Dedicated external interrupt pin with priority handling - responds to fast edge-triggered events like emergency stop signals |
| VDD | Power Supply | Single 1.8–5.5 V supply - eliminates need for multiple regulators in multi-rail systems |
| VSS | Ground | Common reference for analog/digital domains - requires separate analog ground trace for noise-sensitive ADC operation |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power HALT/STOP/SNOOZE modes | Reduces active current to 63 μA/MHz and enables sub-μA deep sleep - extends battery life in portable industrial tools |
| On-chip 2 KB data flash with BGO | Allows firmware parameter updates during runtime without halting application code - essential for field-upgradable calibration data |
| CRC calculation hardware | Accelerates checksum validation for firmware integrity and communication packet verification - offloads CPU and improves real-time response |
| RAM guard and SFR guard | Prevents accidental overwrites of critical memory regions - enhances reliability in safety-conscious industrial control loops |
| 10-bit A/D converter with internal temp sensor | Enables self-monitoring of die temperature and analog sensor inputs without external components - reduces BOM cost and board area |
| 2-channel DMA controller | Performs memory-to-peripheral transfers in 2 clocks - frees CPU for control algorithms during high-bandwidth sensor data acquisition |
Applications
| Industrial Motor Control | Smart Sensor Node |
|---|---|
Use Scenario: Closed-loop speed regulation of BLDC fans in HVAC systems using hall-effect feedback and PWM drive. IC Role / Device Role / Timing Role: Real-time motor commutation controller with 4-channel TAU timer generating synchronized PWM outputs and capturing hall sensor edges. Use Value: On-chip 10-bit ADC measures current sense resistors; 2 KB data flash stores motor profile parameters; G-grade temp range ensures operation near hot motors. |
Use Scenario: Battery-powered environmental monitor collecting temperature, humidity, and CO₂ via I²C sensors and transmitting via UART to gateway. IC Role / Device Role / Timing Role: Low-power sensor fusion hub managing concurrent I²C reads, ADC sampling, and UART transmission with SNOOZE mode between measurements. Use Value: 63 μA/MHz active current and sub-μA STOP mode extend 10-year battery life; 2 KB data flash logs historical readings locally. |
| Programmable Logic Controller (PLC) I/O Module | Factory Automation HMI |
Use Scenario: DIN-rail mounted digital I/O expansion module with 8-channel opto-isolated inputs and relay drivers. IC Role / Device Role / Timing Role: Deterministic I/O scheduler using vectored interrupts and 12-bit interval timer for precise 1 ms polling cycles. Use Value: 20-pin TSSOP fits compact modules; 6 V-tolerant P60/P61 interface legacy 24 V PLC buses; CRC hardware validates configuration updates. |
Use Scenario: Touch-enabled operator panel with LED backlight dimming, buzzer alerts, and RS-485 communication to PLC. IC Role / Device Role / Timing Role: Human-machine interface controller driving PWM-dimmed LEDs, generating tones via PCLBUZ0, and managing UART/RS-485 transceivers. Use Value: Integrated buzzer output eliminates external driver; key return pins support capacitive touch buttons; G-grade rating withstands factory ambient heat. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10267GSM#35 | 512 B RAM, 4 KB code flash, same 2 KB data flash and G-grade TSSOP20 package | Supports larger firmware images and deeper stack usage - suitable for applications requiring USB CDC or Modbus RTU stacks | Select when additional RAM and flash are needed without changing PCB layout or temperature qualification |
| R5F10268GSM#35 | 768 B RAM, 8 KB code flash, same 2 KB data flash and G-grade TSSOP20 package | Enables complex control algorithms and larger lookup tables - appropriate for PID tuning with adaptive gains and data logging | Choose for enhanced computational headroom while retaining identical pinout, peripherals, and industrial temperature compliance |
Compared with R5F10266GSM#35, the R5F10267GSM#35 and R5F10268GSM#35 offer scalable memory resources within the same industrial-qualified TSSOP20 footprint and peripheral set - allowing design reuse across product tiers without requalification.
Availability
R5F10266GSM#35 is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, PLC I/O modules, and factory automation HMI requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R5F10266GSM#35 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 applications.
The RL78/G12 family targets cost-sensitive, ultra-low-power industrial control applications - combining robust peripheral integration, extended temperature operation, and flash-based programmability in compact packages.
FAQ
What is the maximum operating frequency and corresponding DMIPS performance of the R5F10266GSM#35?
The R5F10266GSM#35 operates at up to 24 MHz using its high-speed on-chip oscillator, delivering 31 DMIPS performance. This is achieved with a minimum instruction execution time of 0.04167 µs at 24 MHz, validated across its full 1.8–5.5 V supply range and –40°C to +105°C industrial temperature grade.
Does the R5F10266GSM#35 support self-programming of its code flash memory?
No, the R5F10266GSM#35 does not support self-programming of code flash memory, as explicitly stated in datasheet Note 2 on Page 3. While it includes 2 KB of data flash with background operation (BGO), code flash updates require external programming via the on-chip debug interface - not in-system execution.
What are the key differences between the R5F10266GSM#35 and R5F10366GSM#35?
The R5F10266GSM#35 includes 2 KB data flash, 2-channel DMA, CRC hardware, RAM guard, and SFR guard - features absent in the R5F10366GSM#35. Additionally, the R5F10266GSM#35 offers higher oscillator accuracy (±1.0% vs ±5.0%) and more serial interface channels (2× CSI/2× I²C vs 1× CSI/0× I²C).
Which development tools are officially supported for the R5F10266GSM#35?
Renesas provides official support for the R5F10266GSM#35 through the CS+ IDE, e² studio with GCC-RL78 toolchain, and the E2 emulator Lite. Hardware evaluation is enabled by the YRDKRL78G12 kit, which includes matching TSSOP20 socket, on-board debugger, and example projects for low-power modes and peripheral initialization.
Can the R5F10266GSM#35 operate reliably at 1.8 V supply voltage with all peripherals active?
Yes, the R5F10266GSM#35 is fully specified to operate at 1.8 V across its entire industrial temperature range (–40°C to +105°C). All peripherals - including 10-bit ADC, UART, CSI, I²C, timers, and DMA - remain functional at 1.8 V, enabling battery-powered and energy-harvesting applications without voltage boosting.
R5F10266GSM#35 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 20-LSSOP (0.173", 4.40mm Width)
- Series:
- RL78/G12
- Packaging:
- Tray
- Product Status:
- Last Time Buy
- Programmable:
- -
- Core Processor:
- RL78
- Core Size:
- 16-Bit
- Speed:
- 24MHz
- Connectivity:
- CSI, I2C, UART/USART
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 14
- Program Memory Size:
- 2KB (2K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 2K x 8
- RAM Size:
- 256 x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 5.5V
- Data Converters:
- A/D 11x8/10b
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F10266GSM#35 FAQ
1.How can I place an order for R5F10266GSM#35 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10266GSM#35 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 R5F10266GSM#35 reliable?
The price and inventory of R5F10266GSM#35 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10266GSM#35 is usually 5 days.
3.What payment methods are accepted for R5F10266GSM#35?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10266GSM#35 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10266GSM#35?
R5F10266GSM#35 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10266GSM#35 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 R5F10266GSM#35?
For technical support, including R5F10266GSM#35 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10266GSM#35 requirements.
6.How does Aetrix verify that R5F10266GSM#35 is sourced from the original manufacturer or authorized distributors?
All R5F10266GSM#35 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 R5F10266GSM#35 meets industry standards.
7.What is the process for return or replacement of R5F10266GSM#35?
All R5F10266GSM#35 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10266GSM#35, 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 R5F10266GSM#35 part is unused and in its original packaging.
Return procedure for R5F10266GSM#35:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F10266GSM#35 Tags
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