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Renesas R5F10266GSP#V5
- Part No.:
- R5F10266GSP#V5
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 20-LSSOP (0.173", 4.40mm Width)
- Datasheet:
-
R5F10266GSP#V5.pdf
- Description:
- IC MCU 16BIT 2KB FLASH 20LSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,083
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Product details
Overview
R5F10266GSP#V5 from Renesas Electronics is a 20-pin LSSOP ultra-low-power 16-bit RL78/G12 microcontroller designed for industrial temperature-grade embedded control. It features 2 KB code flash, 2 KB data flash, 256 B RAM, 10-bit A/D converter with 11 channels, and operates from 1.8 V to 5.5 V across –40°C to +105°C. It delivers 31 DMIPS at 24 MHz and supports HALT/STOP/SNOOZE low-power modes-ideal for battery-powered sensor nodes and industrial I/O modules.
For engineers reviewing the R5F10266GSP#V5 datasheet, R5F10266GSP#V5 pinout, R5F10266GSP#V5 application, or R5F10266GSP#V5 equivalent, key selection criteria include its G-grade industrial temp rating, integrated 2 KB data flash with background operation (BGO), 2-channel DMA, CRC engine, and dual-oscillator support (high-speed on-chip up to 24 MHz ±1.0% @ –20°C to +85°C).
Technical Context
The R5F10266GSP#V5 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, enabling minimum instruction execution time of 0.04167 µs at 24 MHz. Its memory subsystem includes 2 KB code flash (1 KB block size), 2 KB data flash supporting 1M rewrite cycles, and 256 B RAM-optimized for deterministic real-time control in space-constrained industrial applications.
Peripheral integration centers on low-power mixed-signal functionality: 11-channel 10-bit A/D converter with internal 1.45 V reference and temperature sensor; UART0, CSI00/CSI01, and IIC00/IIC01 serial interfaces; TAU0 timer array with 4 channels and PWM capability; and dedicated key interrupt (KR0–KR5) and tool interface (TOOL0, TOOLRxD, TOOLTxD) pins for debug and HMI support.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline, 31 DMIPS @ 24 MHz |
| Memory | 2 KB code flash (1 KB blocks), 2 KB data flash (BGO enabled), 256 B RAM |
| Operating Voltage | 1.8 V to 5.5 V - supports direct connection to 1.8/2.5/3.3/5 V logic domains |
| Temperature Range | –40°C to +105°C (G-grade industrial qualification) |
| A/D Converter | 10-bit resolution, 11 input channels, internal 1.45 V reference, integrated temperature sensor |
| Low-Power Modes | HALT (63 μA/MHz), STOP (0.52 μA), SNOOZE - enables multi-year battery life in sensing nodes |
| Oscillator Accuracy | High-speed on-chip oscillator: ±1.0% @ –20°C to +85°C, ±2.0% @ +85°C to +105°C |
Pinout & Package
Package: 20-pin plastic LSSOP (4.4 × 6.5 mm, 0.65-mm pitch), RoHS-compliant, tube packaging (#V5).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/ANI16/PCLBUZ0/SCK00/SCL00 | Port 1 bit 0 / Analog Input 16 / Programmable Clock/Buzzer Output / SPI Clock / I²C Clock | Multi-function pin supporting timer-driven buzzer tone generation, synchronous serial communication, or analog sensing |
| P11/ANI17/SI00/RxD0/SDA00/TOOLRxD | Port 1 bit 1 / Analog Input 17 / SPI Data In / UART Receive / I²C Data / Tool Interface RX | Shared serial receive path for debug (TOOLRxD) and application (RxD0/SDA00), enabling in-system programming without external UART bridge |
| P12/ANI18/SO00/TxD0/TOOLTxD | Port 1 bit 2 / Analog Input 18 / SPI Data Out / UART Transmit / Tool Interface TX | Unified transmit path for application UART and on-chip debug, reducing PCB routing complexity |
| P13/ANI19/TI00/TO00/INTP2 | Port 1 bit 3 / Analog Input 19 / Timer Input 0 / Timer Output 0 / Interrupt Pin 2 | Hardware timer capture/compare channel with external interrupt trigger-used for pulse-width measurement or edge-triggered event logging |
| P14/ANI20/TI01/TO01/INTP3 | Port 1 bit 4 / Analog Input 20 / Timer Input 1 / Timer Output 1 / Interrupt Pin 3 | Dual timer I/O with interrupt capability-supports quadrature decoding or dual-edge timing in motor control |
| P20/ANI0/AVREFP | Port 2 bit 0 / Analog Input 0 / Positive Analog Reference | Configurable as ADC input or precision reference voltage source for external analog circuitry |
| P21/ANI1/AVREFM | Port 2 bit 1 / Analog Input 1 / Negative Analog Reference | Enables differential analog measurements or external reference biasing for high-accuracy sensor conditioning |
| P22/ANI2 | Port 2 bit 2 / Analog Input 2 | Dedicated analog input with no alternate functions-guarantees noise-immune signal acquisition path |
| P23/ANI3 | Port 2 bit 3 / Analog Input 3 | Second dedicated analog input-supports simultaneous sampling of two independent sensor signals |
| P40/KR0/TOOL0 | Port 4 bit 0 / Key Return 0 / Tool Interface Data | Supports capacitive touch key scanning (KR0) or bidirectional debug communication (TOOL0) without GPIO resource conflict |
| P41/ANI22/SO01/SDA01/TI02/TO02/INTP1 | Port 4 bit 1 / Analog Input 22 / SPI Data Out / I²C Data / Timer Input 2 / Timer Output 2 / Interrupt Pin 1 | High-density peripheral multiplexing-enables I²C slave mode while retaining timer-based wake-up and analog monitoring |
| P42/ANI21/SCK01/SCL01/TI03/TO03 | Port 4 bit 2 / Analog Input 21 / SPI Clock / I²C Clock / Timer Input 3 / Timer Output 3 | Combines clock generation, analog sensing, and hardware timing-critical for synchronized sensor fusion architectures |
| P60/KR4/SCLA0/(TxD0) | Port 6 bit 0 / Key Return 4 / I²C Clock / UART Transmit (remapped) | N-ch open-drain I/O with 6 V tolerance-safe for interfacing with higher-voltage I²C buses or legacy key matrix designs |
| P61/KR5/SDAA0/(RxD0) | Port 6 bit 1 / Key Return 5 / I²C Data / UART Receive (remapped) | Complements P60 for robust I²C bus implementation or remapped UART with overvoltage protection |
| P121/KR3/X1/(TI03)/(INTP3) | Port 12 bit 1 / Key Return 3 / Crystal Oscillator Input / Timer Input 3 / Interrupt Pin 3 | Primary crystal oscillator input with fallback timer/interrupt function-ensures system timing continuity during X1 failure |
| P122/KR2/X2/EXCLK/(TI02)/(INTP2) | Port 12 bit 2 / Key Return 2 / Crystal Oscillator Output / External Clock Input / Timer Input 2 / Interrupt Pin 2 | Crystal output or external clock input with secondary timer/interrupt capability-supports failover clocking schemes |
| P125/KR1/SI01/RESET | Port 12 bit 5 / Key Return 1 / SPI Data In / Reset Input | Hardware reset input with key return and SPI data functionality-enables shared reset/key scan line in space-limited layouts |
| P137/INTP0 | Port 13 bit 7 / Interrupt Pin 0 | Dedicated external interrupt pin with no alternate functions-guarantees lowest-latency response to critical events |
| VDD | Power Supply | Single 1.8–5.5 V supply-eliminates need for external voltage regulators in multi-rail systems |
| VSS | Ground | Common reference for analog/digital domains-separate VSS pin ensures stable ADC performance |
Key Features
| Feature | Design Value |
|---|---|
| True Low-Power Platform | 63 μA/MHz active current enables >5-year battery life in wireless sensor transmitters |
| Integrated Data Flash with BGO | 2 KB data flash supports background rewriting during program execution-no CPU stall during firmware parameter updates |
| G-Grade Industrial Temp Support | –40°C to +105°C operation qualified per JEDEC JESD22-A104-suitable for under-hood automotive and factory-floor controllers |
| On-Chip CRC Engine | Hardware-accelerated CRC-16/32 computation reduces firmware validation overhead by >90% vs. software implementation |
| Dual Oscillator Architecture | High-speed on-chip oscillator (1–24 MHz) + external crystal (1–20 MHz) enables fast wake-up and precise timing synchronization |
| Peripheral I/O Redirection | PIOR register allows dynamic remapping of UART, SPI, and I²C functions to alternate pins-increases PCB layout flexibility |
Applications
| Industrial Sensor Node | Smart Thermostat Controller |
|---|---|
Use Scenario: Battery-powered environmental monitor measuring temperature, humidity, and CO₂ in HVAC ducts. IC Role / Device Role / Timing Role: Main controller executing sensor polling, data preprocessing, and LoRaWAN packet assembly; uses SNOOZE mode between 15-second readings. Use Value: 2 KB data flash stores calibration coefficients and historical min/max values; 10-bit A/D with internal reference eliminates external precision references. | Use Scenario: Residential thermostat with touchscreen UI, relay drivers, and wireless connectivity. IC Role / Device Role / Timing Role: System-on-chip managing display refresh, button scan, temperature PID loop (100 Hz), and BLE stack timing. Use Value: 6-channel key return (KR0–KR5) directly interfaces capacitive touch buttons; programmable clock/buzzer output drives piezo alerts without external driver. |
| Programmable Logic Relay | Industrial I/O Module |
Use Scenario: DIN-rail mounted PLC module accepting 24 V DC inputs and driving 24 V solenoid outputs. IC Role / Device Role / Timing Role: Real-time sequencer executing ladder logic scans every 10 ms; uses TAU0 timers for precise pulse-width modulation of SSR drivers. Use Value: N-ch open-drain I/O (P60/P61) tolerates 6 V-enables direct 24 V interface with level-shifting resistors; CRC engine validates configuration EEPROM writes. | Use Scenario: Modular fieldbus node converting analog 4–20 mA sensor signals to Modbus RTU over RS-485. IC Role / Device Role / Timing Role: Protocol gateway with isolated RS-485 transceiver, 11-channel A/D for multi-sensor aggregation, and UART-to-Modbus framing. Use Value: Dual UART (RxD0/TxD0 + remapped RxD0/TxD0 on P61/P60) supports simultaneous debug and fieldbus communication; 256 B RAM sufficient for Modbus frame buffering. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10267GSP#V5 | 512 B RAM (vs. 256 B), same 2 KB code/data flash, identical package and peripherals | Enables larger local variable sets and deeper interrupt nesting depth | Select when application requires >256 B stack/heap space but retains identical power/performance envelope |
| R5F10268GSP#V5 | 8 KB code flash (vs. 2 KB), 2 KB data flash, 512 B RAM, same package and peripherals | Supports complex protocol stacks (e.g., full BLE host stack) and firmware-over-the-air (FOTA) dual-bank updates | Select when future firmware expansion or secure FOTA capability is required without changing PCB layout |
Compared with R5F10266GSP#V5, R5F10267GSP#V5 provides doubled RAM for enhanced real-time task scheduling, while R5F10268GSP#V5 adds scalable code storage for evolving feature sets-all within identical thermal, electrical, and mechanical constraints.
Availability
R5F10266GSP#V5 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart thermostats, programmable logic relays, and modular I/O modules requiring stable component supply across extended temperature ranges.
Supply support for R5F10266GSP#V5 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 product line delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive industrial control, sensor interfacing, and appliance applications-balancing energy efficiency, integrated analog peripherals, and robust industrial qualification.
FAQ
What is the maximum operating frequency and associated DMIPS rating for the R5F10266GSP#V5?
The R5F10266GSP#V5 achieves a maximum operating frequency of 24 MHz using its high-speed on-chip oscillator, delivering 31 DMIPS of processing performance. This benchmark is measured under standard conditions (VDD = 2.7–5.5 V, TA = –40°C to +85°C) and reflects the RL78 CPU core's 3-stage pipeline efficiency. The R5F10266GSP#V5 maintains this performance across its full industrial temperature range (–40°C to +105°C) with appropriate derating per Renesas' AC characteristics specifications.
Does the R5F10266GSP#V5 support self-programming of its code flash memory?
No, the R5F10266GSP#V5 does not support self-programming of its code flash memory. According to Renesas documentation (Note 2, Page 3), self-programming functionality is explicitly disabled for R5F10266 and R5F10366 variants. However, the R5F10266GSP#V5 retains full support for data flash self-programming with background operation (BGO), enabling non-disruptive parameter updates during runtime without halting CPU execution.
What are the key differences between the R5F10266GSP#V5 and R5F10366GSP#V5?
The R5F10266GSP#V5 includes 2 KB of data flash memory, 2-channel DMA, CRC engine, RAM guard, and SFR guard-features absent in the R5F10366GSP#V5. Additionally, the R5F10266GSP#V5 offers higher oscillator accuracy (±1.0% vs. ±5.0%) and more serial interface channels (2 CSI + 2 I²C vs. 1 CSI only). Both share identical package, pinout, code flash size (2 KB), and temperature grade (G), making them drop-in replacements where data flash and advanced peripherals are not required.
How many analog input channels does the R5F10266GSP#V5 support, and what is their resolution?
The R5F10266GSP#V5 supports 11 analog input channels (ANI0–ANI3, ANI16–ANI22) with 10-bit resolution. It includes an internal 1.45 V reference voltage and an integrated temperature sensor, enabling accurate sensor measurements without external reference components. All analog inputs operate across the full supply range (1.8 V to 5.5 V), and the A/D converter supports single-ended and differential measurement modes via software configuration.
What low-power modes are available on the R5F10266GSP#V5, and what are their typical current draws?
The R5F10266GSP#V5 supports HALT mode (63 μA/MHz), STOP mode (0.52 μA), and SNOOZE mode (intermediate power state with selected peripherals active). HALT mode retains RAM and register contents while stopping the CPU clock; STOP mode disables all clocks and reduces current to sub-microamp levels; SNOOZE mode allows UART or timer interrupts to wake the CPU while keeping the main oscillator running. These modes are fully supported across the –40°C to +105°C temperature range, enabling multi-year battery operation in sensor applications.
R5F10266GSP#V5 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 20-LSSOP (0.173", 4.40mm Width)
- Series:
- RL78/G12
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- 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:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F10266GSP#V5 FAQ
1.How can I place an order for R5F10266GSP#V5 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10266GSP#V5 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 R5F10266GSP#V5 reliable?
The price and inventory of R5F10266GSP#V5 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10266GSP#V5 is usually 5 days.
3.What payment methods are accepted for R5F10266GSP#V5?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10266GSP#V5 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10266GSP#V5?
R5F10266GSP#V5 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10266GSP#V5 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 R5F10266GSP#V5?
For technical support, including R5F10266GSP#V5 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10266GSP#V5 requirements.
6.How does Aetrix verify that R5F10266GSP#V5 is sourced from the original manufacturer or authorized distributors?
All R5F10266GSP#V5 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 R5F10266GSP#V5 meets industry standards.
7.What is the process for return or replacement of R5F10266GSP#V5?
All R5F10266GSP#V5 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10266GSP#V5, 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 R5F10266GSP#V5 part is unused and in its original packaging.
Return procedure for R5F10266GSP#V5:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F10266GSP#V5 Tags
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