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Renesas R5F10266ASP#V5
- Part No.:
- R5F10266ASP#V5
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 20-LSSOP (0.173", 4.40mm Width)
- Datasheet:
-
R5F10266ASP#V5.pdf
- Description:
- IC MCU 16BIT 2KB FLASH 20LSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,824
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Product details
Overview
R5F10266ASP#V5 from Renesas Electronics is a 20-pin LSSOP ultra-low-power 16-bit RL78/G12 microcontroller designed for cost-sensitive consumer electronics. It integrates 2 KB code flash, 256 B RAM, 2 KB data flash, 10-bit 11-channel ADC, 4-channel 16-bit TAU timer, UART, two CSI channels, two simplified I²C interfaces, and operates from 1.8 V to 5.5 V across –40°C to +85°C ambient.
For engineers reviewing the R5F10266ASP#V5 datasheet, R5F10266ASP#V5 pinout, R5F10266ASP#V5 application, or R5F10266ASP#V5 equivalent, this device supports low-voltage sensor interface, battery-powered remote controls, and embedded control where flash self-programming is not required and compact 4.4 × 6.5 mm footprint is critical.
Technical Context
The R5F10266ASP#V5 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, delivering 31 DMIPS at 24 MHz using its high-accuracy ±1.0% on-chip oscillator (1–24 MHz selectable). Its peripheral set includes DMA controller (2 channels), CRC calculation unit, RAM guard, and SFR guard - features exclusive to R5F102-series devices and absent in R5F103 variants.
It supports three low-power modes (HALT, STOP, SNOOZE) enabling 63 μA/MHz active current consumption. The device lacks self-programming capability per datasheet Note 2, and its 256 B RAM constrains stack depth for data flash library execution - a key design constraint distinguishing it from higher-memory R5F1026x siblings.
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 + 2 KB data flash + 256 B RAM - no self-programming support |
| Power | 1.8–5.5 V supply; 63 μA/MHz active current; HALT/STOP/SNOOZE low-power modes |
| ADC | 10-bit resolution, 11 input channels, internal 1.45 V reference, integrated temperature sensor |
| Timers | 4-channel 16-bit TAU (3 PWM-capable outputs), 1-channel 12-bit interval timer, 1-window watchdog |
| Serial | 1 UART, 2 CSI (SPI-like), 2 simplified I²C - all configurable via PIOR register |
| Package | LSSOP-20 (4.4 × 6.5 mm, 0.65 mm pitch), tube packaging (#V5) |
Pinout & Package
LSSOP-20 package (PLSP0020JB-A), 4.4 × 6.5 mm body, 0.65 mm lead pitch, exposed pad not present.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/ANI16/PCLBUZ0/SCK00/SCL00 | Port 1 bit 0 / Analog Input 16 / Buzzer Clock / SPI Clock / I²C Clock | Multi-function pin supporting serial communication clocking or programmable tone generation |
| P11/ANI17/SI00/RxD0/SDA00/TOOLRxD | Port 1 bit 1 / Analog Input 17 / SPI Input / UART RX / I²C Data / Debug RX | Shared serial data input path for multiple protocols; TOOLRxD enables on-chip debug communication |
| P12/ANI18/SO00/TxD0/TOOLTxD | Port 1 bit 2 / Analog Input 18 / SPI Output / UART TX / Debug TX | Primary UART transmit path and SPI output; TOOLTxD supports debug interface |
| P13/ANI19/TI00/TO00/INTP2 | Port 1 bit 3 / Analog Input 19 / Timer Input 0 / Timer Output 0 / Interrupt 2 | Timer capture/compare I/O with interrupt capability; supports edge-triggered event detection |
| P14/ANI20/TI01/TO01/INTP3 | Port 1 bit 4 / Analog Input 20 / Timer Input 1 / Timer Output 1 / Interrupt 3 | Dedicated timer channel for pulse-width measurement or PWM generation |
| P20/ANI0/AVREFP | Port 2 bit 0 / Analog Input 0 / ADC Positive Reference | Analog input with dedicated AVREFP function - sets upper voltage bound for ADC conversion range |
| P21/ANI1/AVREFM | Port 2 bit 1 / Analog Input 1 / ADC Negative Reference | Analog input with AVREFM function - defines lower reference for differential ADC operation |
| P22/ANI2 | Port 2 bit 2 / Analog Input 2 | General-purpose analog input channel compatible with internal temperature sensor |
| P23/ANI3 | Port 2 bit 3 / Analog Input 3 | Additional analog input supporting single-ended or differential acquisition |
| P40/KR0/TOOL0 | Port 4 bit 0 / Key Return 0 / Debug Interface | Supports keypad scanning (KR0) and bidirectional debug communication (TOOL0) |
| P41/ANI22/SO01/SDA01/TI02/TO02/INTP1 | Port 4 bit 1 / Analog Input 22 / SPI Output / I²C Data / Timer I/O / Interrupt 1 | High-flexibility pin combining analog, serial, timer, and interrupt functions |
| P42/ANI21/SCK01/SCL01/TI03/TO03 | Port 4 bit 2 / Analog Input 21 / SPI Clock / I²C Clock / Timer I/O | Secondary serial clock source with timer input/output capability |
| P60/KR4/SCLA0/(TxD0) | Port 6 bit 0 / Key Return 4 / I²C Clock A / UART TX (remapped) | N-ch open-drain I/O with 6 V tolerance; supports I²C bus clocking or UART remapping |
| P61/KR5/SDAA0/(RxD0) | Port 6 bit 1 / Key Return 5 / I²C Data A / UART RX (remapped) | N-ch open-drain I/O with 6 V tolerance; supports I²C bus data or UART remapping |
| P121/KR3/X1/(TI03)/(INTP3) | Port 12 bit 1 / Key Return 3 / Crystal Input / Timer Input / Interrupt | Primary crystal oscillator input; also serves as timer input or external interrupt source |
| P122/KR2/X2/EXCLK/(TI02)/(INTP2) | Port 12 bit 2 / Key Return 2 / Crystal Output / External Clock / Timer Input | Crystal oscillator output or external clock input; dual timer/interrupt capability |
| P125/KR1/SI01/RESET | Port 12 bit 5 / Key Return 1 / SPI Input / Reset Input | Active-low hardware reset pin with SPI input alternate function |
| P137/INTP0 | Port 13 bit 7 / External Interrupt 0 | Dedicated interrupt pin supporting wake-up from low-power modes |
| VDD | Power Supply | 1.8–5.5 V main supply; powers core, peripherals, and I/O |
| VSS | Ground | Reference ground for analog and digital circuits; must be low-impedance |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power operation | 63 μA/MHz active current enables multi-year battery life in portable sensors |
| Data flash memory | 2 KB of wear-rated (1M write cycles) nonvolatile storage for configuration or logging without external EEPROM |
| Peripheral I/O redirection | PIOR register allows dynamic reassignment of serial, timer, and interrupt functions to optimize PCB layout |
| Hardware safety features | CRC engine, RAM guard, and SFR guard detect memory corruption and prevent unintended register writes |
| Flexible clock system | ±1.0% accuracy high-speed on-chip oscillator eliminates need for external crystal in cost-sensitive designs |
Applications
| Home Appliance Control | Industrial Sensor Node |
|---|---|
Use Scenario: Microcontroller in washing machine control panel managing motor sequencing, water level sensing, and user interface. IC Role / Device Role / Timing Role: Main system controller executing real-time motor control loops and ADC-based analog monitoring. Use Value: Integrated 11-channel ADC and 4-channel TAU timer enable direct connection to pressure, temperature, and current sensors without external signal conditioning. | Use Scenario: Battery-powered environmental monitor measuring temperature, humidity, and air quality in factory settings. IC Role / Device Role / Timing Role: Low-power data acquisition node performing periodic sampling and wireless transmission. Use Value: 63 μA/MHz active current and SNOOZE mode reduce average power to sub-μA levels between measurements. |
| Consumer Remote Control | Smart Lighting Driver |
Use Scenario: IR remote with touch keys and backlight dimming for TV and audio systems. IC Role / Device Role / Timing Role: Keypad scanner and IR modulation generator with programmable buzzer/clock output. Use Value: KR0–KR5 key return inputs and PCLBUZ0 output support zero-external-component IR carrier generation and tactile feedback. | Use Scenario: LED driver module regulating brightness and color mixing in architectural lighting fixtures. IC Role / Device Role / Timing Role: PWM generator and I²C master coordinating multiple LED channel drivers. Use Value: Three PWM-capable TAU outputs and dual simplified I²C interfaces allow independent control of RGBW channels and thermal monitoring ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10267ASP#V5 | 512 B RAM, 2 KB data flash, same peripherals and package | Enables deeper stack usage for data flash library execution | Select when firmware requires background data flash rewriting with guaranteed stack space |
| R5F10366ASP#V5 | No data flash, no DMA, no CRC/RAM/SFR guard, ±5.0% oscillator accuracy | Lower-cost option where nonvolatile parameter storage and safety features are unnecessary | Select for basic control tasks without field-updatable configuration or functional safety requirements |
Compared with R5F10267ASP#V5, the R5F10266ASP#V5 trades RAM headroom for identical peripheral functionality and cost; compared with R5F10366ASP#V5, it adds data flash, safety guards, and tighter oscillator tolerance at modest cost premium - making it optimal for field-configurable, reliability-critical consumer devices.
Availability
R5F10266ASP#V5 is available at Aetrix Electronics and suitable for home appliance control, industrial sensor nodes, and consumer remote controls requiring stable component supply and long-term production continuity.
Supply support for R5F10266ASP#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 is a Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power management ICs for automotive, industrial, and consumer markets.
The RL78/G12 product line delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive, battery-operated, and general-purpose embedded control applications requiring integrated analog, serial, and timing peripherals.
FAQ
Does R5F10266ASP#V5 support self-programming of its code flash memory?
No, the R5F10266ASP#V5 does not support self-programming of code flash memory. Datasheet Note 2 explicitly states this limitation for both R5F10266 and R5F10366 variants. Firmware updates require external programming via the on-chip debug interface, and the flash shield window function remains inactive. This distinguishes R5F10266ASP#V5 from higher-memory R5F1026x devices that do support self-programming.
What is the maximum operating frequency of R5F10266ASP#V5 and what clock sources are available?
The R5F10266ASP#V5 supports up to 24 MHz operation using its high-accuracy ±1.0% on-chip oscillator (selectable frequencies: 1/2/3/4/6/8/12/16/24 MHz). It also accepts external crystal (X1/X2, 1–20 MHz) or external clock (EXCLK) inputs. The minimum instruction execution time is 0.04167 µs at 24 MHz, delivering 31 DMIPS performance. All clock sources operate across the full 1.8–5.5 V supply range.
How many analog input channels does R5F10266ASP#V5 provide and what ADC resolution is supported?
The R5F10266ASP#V5 provides 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. The ADC operates across the full 1.8–5.5 V supply range and supports single-ended and differential acquisition modes using AVREFP and AVREFM pins.
Is R5F10266ASP#V5 pin-compatible with other RL78/G12 20-pin variants like R5F10267ASP#V5?
Yes, the R5F10266ASP#V5 is pin-compatible with all RL78/G12 20-pin LSSOP variants including R5F10267ASP#V5, R5F10268ASP#V5, and R5F10269ASP#V5. They share identical pin count, physical package (PLSP0020JB-A), and pinout configuration. Functional differences - such as RAM size (256 B vs. 512 B), data flash usability, and oscillator accuracy - are implemented internally and do not affect PCB layout or interconnect.
What safety features are integrated into R5F10266ASP#V5 and how do they differ from R5F10366ASP#V5?
The R5F10266ASP#V5 integrates CRC calculation, RAM guard, and SFR guard - hardware features absent in the R5F10366ASP#V5. These detect memory corruption and prevent unintended register writes during runtime. Combined with its ±1.0% oscillator accuracy and 2 KB data flash, these features make R5F10266ASP#V5 suitable for applications requiring enhanced reliability over the cost-optimized R5F10366ASP#V5, which omits all three safety mechanisms.
R5F10266ASP#V5 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 20-LSSOP (0.173", 4.40mm Width)
- Series:
- RL78/G12
- Packaging:
- Tube
- 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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F10266ASP#V5 FAQ
1.How can I place an order for R5F10266ASP#V5 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10266ASP#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 R5F10266ASP#V5 reliable?
The price and inventory of R5F10266ASP#V5 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10266ASP#V5 is usually 5 days.
3.What payment methods are accepted for R5F10266ASP#V5?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10266ASP#V5 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10266ASP#V5?
R5F10266ASP#V5 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10266ASP#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 R5F10266ASP#V5?
For technical support, including R5F10266ASP#V5 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10266ASP#V5 requirements.
6.How does Aetrix verify that R5F10266ASP#V5 is sourced from the original manufacturer or authorized distributors?
All R5F10266ASP#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 R5F10266ASP#V5 meets industry standards.
7.What is the process for return or replacement of R5F10266ASP#V5?
All R5F10266ASP#V5 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10266ASP#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 R5F10266ASP#V5 part is unused and in its original packaging.
Return procedure for R5F10266ASP#V5:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F10266ASP#V5 Tags
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