My Inquiry
My Account
Renesas R5F10266GSM#15
- Part No.:
- R5F10266GSM#15
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 20-LSSOP (0.173", 4.40mm Width)
- Datasheet:
-
R5F10266GSM#15.pdf
- Description:
- IC MCU 16BIT 2KB FLASH 20LSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,127
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
R5F10266GSM#15 from Renesas Electronics is a 20-pin RL78/G12 16-bit microcontroller with 2 KB code flash, 2 KB data flash, and 256 B RAM, operating at 1.8–5.5 V across –40°C to +105°C industrial temperature range. It integrates an ultra-low-power RL78 CPU core (31 DMIPS @ 24 MHz), 10-bit 11-channel ADC, dual CSI/I²C serial interfaces, 4-channel 16-bit TAU timer, and on-chip high-accuracy ±1.0% oscillator for embedded control in battery-powered sensors and industrial HMI.
For engineers reviewing the R5F10266GSM#15 datasheet, R5F10266GSM#15 pinout, R5F10266GSM#15 application, or R5F10266GSM#15 equivalent, this page delivers verified technical context, package mapping, real-world use scenarios, and validated alternative options - all grounded in Renesas' official R01DS0193EJ0250 Rev.2.50 specification.
Technical Context
The R5F10266GSM#15 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and 1 MB address space, enabling deterministic real-time execution with minimum instruction time of 0.04167 µs at 24 MHz. Its power management includes HALT, STOP, and SNOOZE modes, achieving 63 µA/MHz active current consumption.
It features dual simplified SPI (CSI) and dual simplified I²C channels, 2-channel DMA, CRC operation, RAM/SFR guard safety functions, and a 15 kHz low-speed on-chip oscillator - all confirmed for the R5F1026x 20-pin variant per datasheet Section 1.7 and Figure 1-1.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC CPU with 3-stage pipeline and 1 MB address space |
| Operating Voltage | 1.8 V to 5.5 V - supports direct interface with 1.8/2.5/3.3 V peripherals without level shifters |
| Flash Memory | 2 KB code flash + 2 KB data flash - enables background rewriting (BGO) and 1M-cycle endurance |
| RAM Size | 256 B - sufficient for stack and minimal variables in ultra-low-power sensor firmware |
| ADC Resolution | 10-bit, 11-channel - includes internal 1.45 V reference and temperature sensor for self-calibration |
| Serial Interfaces | 2 × CSI (SPI-compatible), 2 × simplified I²C, 1 × UART - supports multi-sensor bus communication |
| Timer Resources | 4-channel 16-bit TAU with PWM output capability and 12-bit interval timer for precise timing control |
| Temperature Range | –40°C to +105°C (G-grade) - qualified for industrial motor drives and HVAC control environments |
Pinout & Package
Package: 20-pin TSSOP (PTSP0020JI-A), 4.4 × 6.5 mm, 0.65-mm pitch, lead-free, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/ANI16/PCLBUZ0/SCK00/SCL00 | Port 1 bit 0 / Analog Input 16 / Programmable Clock Output / CSI00 Clock / I²C00 Clock | Multi-function pin supporting synchronous serial communication or buzzer tone generation |
| P11/ANI17/SI00/RxD0/SDA00/TOOLRxD | Port 1 bit 1 / Analog Input 17 / CSI00 Data In / UART0 RX / I²C00 Data / Debug RX | Shared serial receive path for tooling, sensor interface, and host communication |
| P12/ANI18/SO00/TxD0/TOOLTxD | Port 1 bit 2 / Analog Input 18 / CSI00 Data Out / UART0 TX / Debug TX | Unified transmit path for debug visibility and peripheral command delivery |
| P13/ANI19/TI00/TO00/INTP2 | Port 1 bit 3 / Analog Input 19 / Timer Input 0 / Timer Output 0 / Interrupt 2 | Hardware timer capture/compare with interrupt support for encoder or pulse-width measurement |
| P14/ANI20/TI01/TO01/INTP3 | Port 1 bit 4 / Analog Input 20 / Timer Input 1 / Timer Output 1 / Interrupt 3 | Dual timer channel for independent PWM generation or edge-triggered event handling |
| P20/ANI0/AVREFP | Port 2 bit 0 / Analog Input 0 / ADC Positive Reference | Configurable as analog input or precision reference source for ratiometric sensor measurements |
| P21/ANI1/AVREFM | Port 2 bit 1 / Analog Input 1 / ADC Negative Reference | Enables differential ADC mode or external reference biasing for noise immunity |
| P22/ANI2 | Port 2 bit 2 / Analog Input 2 | Dedicated analog input with internal sampling capacitor - no shared digital switching noise |
| P23/ANI3 | Port 2 bit 3 / Analog Input 3 | Additional analog channel for multi-sensor monitoring (e.g., voltage, current, temp) |
| P40/KR0/TOOL0 | Port 4 bit 0 / Key Return 0 / Debug Interface | Supports key matrix scanning and in-circuit debugging via SWD protocol |
| P41/ANI22/SO01/SDA01/TI02/TO02/INTP1 | Port 4 bit 1 / Analog Input 22 / CSI01 Data Out / I²C01 Data / Timer Input 2 / Timer Output 2 / Interrupt 1 | High-flexibility pin for secondary serial bus or hardware timer extension |
| P42/ANI21/SCK01/SCL01/TI03/TO03 | Port 4 bit 2 / Analog Input 21 / CSI01 Clock / I²C01 Clock / Timer Input 3 / Timer Output 3 | Secondary clock domain for isolated sensor subsystems or redundant comms |
| P60/KR4/SCLA0/(TxD0) | Port 6 bit 0 / Key Return 4 / I²C00 Clock / UART0 TX (remappable) | N-ch open-drain I/O with 6 V tolerance - safe for mixed-voltage I²C bus termination |
| P61/KR5/SDAA0/(RxD0) | Port 6 bit 1 / Key Return 5 / I²C00 Data / UART0 RX (remappable) | 6 V-tolerant I²C data line - eliminates need for external level translators in 5 V systems |
| P121/KR3/X1/(TI03)/(INTP3) | Port 12 bit 1 / Key Return 3 / Crystal Oscillator Input / Timer Input 3 / Interrupt 3 | Primary crystal connection point - supports 1–20 MHz resonators for stable system clock |
| 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 feed-in - enables precise clock synchronization |
| P125/KR1/SI01/RESET | Port 12 bit 5 / Key Return 1 / CSI01 Data In / Reset Input | Active-low reset pin with internal pull-up - accepts standard push-button or supervisor IC assertion |
| P137/INTP0 | Port 13 bit 7 / Interrupt 0 | Dedicated external interrupt pin - fast response to safety-critical events (e.g., overcurrent) |
| VDD | Power Supply | Single 1.8–5.5 V supply - powers core, flash, and I/O simultaneously |
| VSS | Ground | Reference return for analog and digital domains - requires low-impedance PCB plane |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 63 µA/MHz active current and STOP mode down to 0.23 µA - extends battery life in wireless sensors |
| On-chip data flash | 2 KB with background operation (BGO) and 1M write cycles - enables field firmware updates without halting system |
| Hardware safety functions | CRC engine, RAM guard, and SFR guard - detects memory corruption and prevents unintended register writes |
| Multi-protocol serial interface | 2 × CSI (SPI), 2 × simplified I²C, and 1 × UART - simplifies integration with diverse sensors and displays |
| High-accuracy oscillator | ±1.0% frequency stability (–20°C to +85°C) - eliminates external crystal for cost-sensitive applications |
| Industrial temperature grade | –40°C to +105°C operation (G-grade) - certified for under-hood automotive and factory-floor deployment |
Applications
| Smart Sensor Node | Industrial HMI Panel |
|---|---|
Use Scenario: Battery-powered environmental sensor collecting temperature, humidity, and CO₂ data every 30 seconds for LoRaWAN transmission. IC Role / Device Role / Timing Role: Main controller executing sensor polling, ADC conversion, data filtering, and low-power radio wake-up sequencing. Use Value: 63 µA/MHz active current and STOP mode enable >5-year battery life; integrated 10-bit ADC eliminates external signal conditioning. |
Use Scenario: Touch-enabled front-panel controller for HVAC equipment with LED indicators, button inputs, and RS-485 communication. IC Role / Device Role / Timing Role: System coordinator managing keypad scan, display refresh, LED PWM dimming, and protocol translation. Use Value: 20-pin TSSOP fits compact PCB layouts; 2 × I²C buses interface with touch controller and EEPROM; 4-channel TAU generates smooth LED fades. |
| Motor Control Interface | Energy Metering Module |
Use Scenario: Brushless DC motor driver auxiliary board monitoring hall-effect sensors, fault signals, and thermal feedback. IC Role / Device Role / Timing Role: Real-time fault monitor capturing edge-triggered interrupts from overcurrent and thermal shutdown lines. Use Value: Dedicated INTP0–INTP3 pins provide sub-1 µs latency; 16-bit TAU timers precisely measure commutation intervals. |
Use Scenario: Secondary metering unit in smart electricity meters tracking neutral current, tamper detection, and RTC backup. IC Role / Device Role / Timing Role: Auxiliary processor handling non-critical metering tasks while main MCU manages metrology ASIC. Use Value: 2 KB data flash stores calibration coefficients and event logs; 1.8 V min operation ensures function during brown-out conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10267GSM#15 | 512 B RAM, 4 KB code flash, same 20-pin TSSOP package and peripheral set | Higher memory headroom for larger firmware or additional communication stacks | Select when firmware exceeds 2 KB or requires deeper stack depth for RTOS task contexts |
| R5F10268GSM#15 | 768 B RAM, 8 KB code flash, identical pinout and temperature rating | Supports complex sensor fusion algorithms and dual-protocol firmware (e.g., BLE + Modbus) | Choose for applications needing local data buffering or firmware-over-the-air update capability |
Compared with R5F10266GSM#15, R5F10267GSM#15 offers double RAM for multitasking, while R5F10268GSM#15 provides quadruple flash for feature-rich firmware - both retain identical I/O, timing, and safety functions, enabling seamless migration within the same PCB layout.
Availability
R5F10266GSM#15 is available at Aetrix Electronics and suitable for industrial sensor nodes, motor interface modules, and energy metering subsystems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R5F10266GSM#15 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 industrial, automotive, and IoT markets.
The RL78/G12 product line delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive, battery-operated, and industrial control applications where reliability, code density, and peripheral integration are critical.
FAQ
What is the maximum operating frequency of the R5F10266GSM#15?
The R5F10266GSM#15 supports a maximum system clock frequency of 24 MHz using its high-speed on-chip oscillator. When using an external crystal (X1/X2), the maximum is 20 MHz at VDD ≥ 2.7 V or 8 MHz at VDD = 1.8–2.4 V. This enables 31 DMIPS performance while maintaining ultra-low power consumption of 63 µA/MHz - a key specification confirmed in the R01DS0193EJ0250 datasheet Section 1.1.
Does the R5F10266GSM#15 support self-programming of its flash memory?
No, the R5F10266GSM#15 does not support self-programming of code flash memory. As explicitly stated in the datasheet footnote on Page 2, "The self-programming function cannot be used for R5F10266 and R5F10366." However, it retains full data flash functionality (2 KB, 1M rewrite cycles, BGO) for non-volatile parameter storage - making R5F10266GSM#15 ideal for fixed-function controllers where firmware updates are handled externally.
What are the key differences between R5F10266GSM#15 and R5F10366GSM#15?
The R5F10266GSM#15 includes 2 KB data flash, 2-channel DMA, CRC engine, RAM/SFR guard, and ±1.0% oscillator accuracy, while R5F10366GSM#15 omits data flash and DMA, lacks safety guards, and has ±5.0% oscillator tolerance. Both share identical 2 KB code flash, 256 B RAM, 20-pin TSSOP package, and –40°C to +105°C rating - but R5F10266GSM#15 is designed for applications requiring data logging, functional safety, or tighter timing control.
Which serial communication protocols are supported by the R5F10266GSM#15?
The R5F10266GSM#15 supports two simplified SPI (CSI) channels, two simplified I²C channels, and one UART channel - all confirmed for the R5F1026x 20-pin variant in Section 1.7 of the datasheet. Its P60/P61 pins are 6 V-tolerant N-ch open-drain I/O, enabling direct 5 V I²C bus interfacing without external level shifters - a design advantage for mixed-voltage industrial systems.
Is the R5F10266GSM#15 qualified for industrial temperature operation?
Yes, the R5F10266GSM#15 is rated for –40°C to +105°C operation (G-grade), as indicated by the "G" in its part number per Figure 1-1 of the datasheet. This qualification covers full functionality including 2 KB data flash BGO operation, 10-bit ADC accuracy, and ±1.0% oscillator stability - making it suitable for under-hood automotive modules, factory automation controllers, and outdoor metering equipment.
R5F10266GSM#15 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 20-LSSOP (0.173", 4.40mm Width)
- Series:
- RL78/G12
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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#15 FAQ
1.How can I place an order for R5F10266GSM#15 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10266GSM#15 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#15 reliable?
The price and inventory of R5F10266GSM#15 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10266GSM#15 is usually 5 days.
3.What payment methods are accepted for R5F10266GSM#15?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10266GSM#15 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10266GSM#15?
R5F10266GSM#15 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10266GSM#15 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#15?
For technical support, including R5F10266GSM#15 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10266GSM#15 requirements.
6.How does Aetrix verify that R5F10266GSM#15 is sourced from the original manufacturer or authorized distributors?
All R5F10266GSM#15 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#15 meets industry standards.
7.What is the process for return or replacement of R5F10266GSM#15?
All R5F10266GSM#15 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10266GSM#15, 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#15 part is unused and in its original packaging.
Return procedure for R5F10266GSM#15:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F10266GSM#15 Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
