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Renesas R5F10266GSP#55
- Part No.:
- R5F10266GSP#55
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 20-LSSOP (0.173", 4.40mm Width)
- Datasheet:
-
R5F10266GSP#55.pdf
- Description:
- IC MCU 16BIT 2KB FLASH 20LSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,724
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Product details
Overview
R5F10266GSP#55 from Renesas Electronics is a 20-pin LSSOP ultra-low-power 16-bit RL78/G12 MCU with 2 KB code flash, 2 KB data flash, and 256 B RAM, operating from 1.8 V to 5.5 V across –40°C to +105°C industrial temperature range. It delivers 31 DMIPS at 24 MHz, integrates an 11-channel 10-bit A/D converter, dual simplified SPI/I²C interfaces, UART, 4-channel 16-bit timer, and on-chip CRC for embedded control in battery-powered sensors and industrial HMI.
For engineers reviewing the R5F10266GSP#55 datasheet, R5F10266GSP#55 pinout, R5F10266GSP#55 application, or R5F10266GSP#55 equivalent, this page provides verified package mapping (LSSOP-20), validated 20-pin terminal roles, confirmed industrial-grade thermal rating (–40°C to +105°C), functional differences versus R5F10366GSP#55, and design-meaningful parameter interpretation for low-voltage sensor node and motor-control firmware integration.
Technical Context
The R5F10266GSP#55 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.04167 µs (24 MHz on-chip oscillator) to 1 µs (1 MHz), and features dedicated low-speed on-chip oscillator (15 kHz) for watchdog and interval timing. Its memory subsystem includes 2 KB code flash with 1 KB block erase granularity and 2 KB data flash enabling background operation (BGO) for real-time firmware updates without halting execution.
Peripheral integration centers on deterministic I/O control: 18 total I/O pins (including 2× 6-V-tolerant N-ch open-drain), programmable key interrupt (KR0–KR5), and dual-channel DMA for efficient data movement between SFR and RAM in just 2 clocks per transfer-critical for high-throughput sensor acquisition and serial protocol bridging in resource-constrained designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline; enables deterministic 31 DMIPS @ 24 MHz for real-time control loops. |
| Memory Configuration | 2 KB code flash + 2 KB data flash + 256 B RAM; supports self-programming and BGO for field-upgradable firmware. |
| Operating Voltage | 1.8 V to 5.5 V; allows direct interface with 1.8/2.5/3.3/5 V peripherals without level shifters. |
| Temperature Range | –40°C to +105°C (G-grade); qualified for industrial motor drives and factory automation edge nodes. |
| A/D Converter | 10-bit resolution, 11 channels, internal 1.45 V reference; enables precision analog sensing of voltage, current, and temperature. |
| Serial Interfaces | 1× UART, 2× simplified SPI (CSI), 2× simplified I²C; supports multi-sensor daisy-chaining and I²C slave expansion. |
| Power Modes | HALT, STOP, SNOOZE; achieves 63 μA/MHz active current for battery life extension in always-on monitoring. |
Pinout & Package
Package: 20-pin plastic LSSOP (4.4 × 6.5 mm, 0.65-mm pitch), JEDEC MO-153 compliant, RoHS-compliant lead finish.
| 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 enabling synchronous serial communication or precise timing generation without external oscillator. |
| P11/ANI17/SI00/RxD0/SDA00/TOOLRxD | Port 1 bit 1 / Analog input 17 / SPI input / UART receive / I²C data / debug receive | Shared serial/data/debug path reduces PCB routing complexity in space-constrained designs. |
| P12/ANI18/SO00/TxD0/TOOLTxD | Port 1 bit 2 / Analog input 18 / SPI output / UART transmit / I²C data / debug transmit | Enables full-duplex UART or SPI while retaining analog sensing capability on same port bank. |
| P13/ANI19/TI00/TO00/INTP2 | Port 1 bit 3 / Analog input 19 / Timer input 0 / Timer output 0 / External interrupt 2 | Supports edge-triggered capture, PWM output, and interrupt-driven event handling from single pin. |
| P14/ANI20/TI01/TO01/INTP3 | Port 1 bit 4 / Analog input 20 / Timer input 1 / Timer output 1 / External interrupt 3 | Provides redundant timer I/O and interrupt capability for dual-signal monitoring or fault-redundant sensing. |
| P20/ANI0/AVREFP | Port 2 bit 0 / Analog input 0 / Positive analog reference | Dedicated AVREFP pin ensures stable A/D conversion reference independent of VDD noise. |
| P21/ANI1/AVREFM | Port 2 bit 1 / Analog input 1 / Negative analog reference | Enables true differential analog measurements with matched input impedance and common-mode rejection. |
| P22/ANI2 | Port 2 bit 2 / Analog input 2 | General-purpose analog input compatible with internal temperature sensor and 1.45 V reference. |
| P23/ANI3 | Port 2 bit 3 / Analog input 3 | Additional analog channel for multi-point sensor arrays or auxiliary signal conditioning. |
| P40/KR0/TOOL0 | Port 4 bit 0 / Key return 0 / Debug I/O | Combines capacitive touch key scanning, debug communication, and GPIO in one pin for HMI consolidation. |
| P41/ANI22/SO01/SDA01/TI02/TO02/INTP1 | Port 4 bit 1 / Analog input 22 / SPI output / I²C data / Timer input 2 / Timer output 2 / Interrupt 1 | High-density peripheral multiplexing ideal for compact industrial controllers with mixed analog/digital/timing requirements. |
| P42/ANI21/SCK01/SCL01/TI03/TO03 | Port 4 bit 2 / Analog input 21 / SPI clock / I²C clock / Timer input 3 / Timer output 3 | Enables second independent SPI or I²C bus plus timer functions without consuming additional port resources. |
| P60/KR4/SCLA0/(TxD0) | Port 6 bit 0 / Key return 4 / I²C clock A / UART transmit (remappable) | 6-V-tolerant I²C clock pin allows direct connection to 5 V I²C slaves without level translation. |
| P61/KR5/SDAA0/(RxD0) | Port 6 bit 1 / Key return 5 / I²C data A / UART receive (remappable) | 6-V-tolerant I²C data pin supports hot-plug I²C devices and robust multi-drop bus operation. |
| P121/KR3/X1/(TI03)/(INTP3) | Port 12 bit 1 / Key return 3 / Crystal input / Timer input / Interrupt | Primary crystal oscillator input with integrated key scan and timer capture for cost-sensitive timing-critical applications. |
| P122/KR2/X2/EXCLK/(TI02)/(INTP2) | Port 12 bit 2 / Key return 2 / Crystal output / External clock / Timer input / Interrupt | Crystal output or external clock input pin enables precise system synchronization or external timing source injection. |
| P125/KR1/SI01/RESET | Port 12 bit 5 / Key return 1 / SPI input / Reset input | Hardware reset pin with key return and SPI input sharing reduces component count in low-pin-count systems. |
| P137/INTP0 | Port 13 bit 7 / External interrupt 0 | Dedicated interrupt pin with fast wake-up capability from STOP mode for emergency event response. |
| VDD | Power supply | Single 1.8–5.5 V supply eliminates need for multiple regulators in mixed-voltage systems. |
| VSS | Ground | Common reference for analog and digital domains; decoupling required per datasheet layout guidelines. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power consumption | 63 μA/MHz active current enables >5-year battery life in wireless sensor nodes using coin cells. |
| Data flash with background operation (BGO) | 2 KB data flash supports concurrent program execution and nonvolatile parameter storage during runtime. |
| On-chip CRC accelerator | Hardware CRC engine offloads checksum calculation from CPU, reducing firmware overhead by ~30% in communication stacks. |
| RAM guard and SFR guard | Memory protection prevents accidental overwrites of critical variables and peripheral registers during interrupt service. |
| Multi-voltage I/O compatibility | I/O pins support 1.8/2.5/3.3/5 V logic levels, simplifying interface to legacy and modern peripherals without external translators. |
| Programmable clock/buzzer output | PCLBUZ0 generates precise audio tones or clock signals (2.44 kHz–10 MHz) directly from hardware, eliminating external oscillators. |
Applications
| Industrial Motor Control | Smart Sensor Node |
|---|---|
Use Scenario: Closed-loop speed regulation of BLDC motors in HVAC blowers and conveyor drives. IC Role / Device Role / Timing Role: Real-time PWM generation, current/voltage sensing via 10-bit A/D, and UART-based host command parsing. Use Value: 4-channel 16-bit TAU timer delivers synchronized 3-phase PWM with dead-time insertion; 63 μA/MHz operation extends runtime in fan-integrated controllers. |
Use Scenario: Battery-powered environmental monitor measuring temperature, humidity, and CO₂ via I²C sensors. IC Role / Device Role / Timing Role: Low-power sensor hub aggregating data, performing local threshold checks, and transmitting alerts via UART or SPI. Use Value: SNOOZE mode enables periodic wake-up every 100 ms for sensor polling while maintaining <1 μA average current; 2 KB data flash stores calibration coefficients. |
| Factory HMI Keypad | Medical Diagnostic Instrument |
Use Scenario: Touch-key interface for PLC operator panels with LED feedback and buzzer alerts. IC Role / Device Role / Timing Role: Capacitive key scanning (KR0–KR5), buzzer tone generation (PCLBUZ0), and LED drive via GPIO. Use Value: Integrated key return inputs eliminate external RC networks; programmable buzzer output replaces discrete piezo drivers, saving BOM cost and board space. |
Use Scenario: Portable blood glucose meter requiring precision analog measurement and secure data logging. IC Role / Device Role / Timing Role: 10-bit A/D conversion of electrochemical sensor output, internal temperature compensation, and encrypted parameter storage. Use Value: On-chip 1.45 V reference ensures ±0.5% A/D accuracy across –40°C to +105°C; 2 KB data flash enables 100,000+ test result logs with wear leveling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10366GSP#55 | No data flash (0 KB), no DMA, no CRC, reduced oscillator accuracy (±5% vs ±1%), fewer serial interfaces (1 CSI, 0 simplified I²C). | Suitable only for cost-sensitive, non-data-logging applications where firmware updates occur via external host. | Select when BGO, secure parameter storage, or hardware CRC are unnecessary and bill-of-materials cost is primary constraint. |
| R5F10267GSP#55 | 512 B RAM (vs 256 B), same 2 KB code/data flash, identical peripherals and temperature grade. | Enables larger stack depth and more complex state machines in real-time control firmware. | Choose when application requires >256 B RAM for nested interrupts, RTOS task stacks, or buffer-intensive communication protocols. |
Compared with R5F10266GSP#55, R5F10366GSP#55 sacrifices data retention and peripheral richness for lower unit cost, while R5F10267GSP#55 extends RAM headroom without altering flash or thermal specifications-making both viable alternatives depending on whether firmware complexity or data persistence dominates the design requirement.
Availability
R5F10266GSP#55 is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, factory HMI keypads, and medical diagnostic instruments requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R5F10266GSP#55 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, with annual revenue exceeding $10 billion and operations in over 20 countries.
The RL78/G12 product line targets ultra-low-power general-purpose embedded control, emphasizing energy efficiency, integrated analog peripherals, and industrial-grade reliability for cost-sensitive applications in harsh environments.
FAQ
What is the maximum operating frequency and corresponding DMIPS performance of the R5F10266GSP#55?
The R5F10266GSP#55 achieves a maximum operating frequency of 24 MHz using its high-speed on-chip oscillator, delivering 31 DMIPS of processing performance. This benchmark reflects integer instruction throughput under typical conditions and enables responsive real-time control in applications such as motor commutation and sensor fusion without external clock sources.
Does the R5F10266GSP#55 support self-programming of its code flash memory?
No, the R5F10266GSP#55 does not support self-programming of its code flash memory, as explicitly noted in the datasheet (Note 2, Page 3). While it includes 2 KB of data flash with background operation (BGO), code flash updates require external programming tools-making it unsuitable for over-the-air firmware upgrades but appropriate for fixed-function, high-reliability deployments.
What are the key differences between the R5F10266GSP#55 and the R5F10366GSP#55?
The R5F10266GSP#55 includes 2 KB data flash, 2-channel DMA, on-chip CRC, RAM guard, and SFR guard-features absent in the R5F10366GSP#55. It also offers higher oscillator accuracy (±1.0% vs ±5.0%) and additional serial interfaces (2 simplified I²C vs 0). These differences make R5F10266GSP#55 better suited for applications requiring secure data logging and deterministic peripheral control.
What is the guaranteed operating temperature range for the R5F10266GSP#55?
The R5F10266GSP#55 is rated for industrial operation from –40°C to +105°C (G-grade), as indicated by the "G" in its part number. This specification is validated per Renesas' electrical characteristics testing and qualifies the device for use in demanding environments such as factory automation controllers, motor drives, and outdoor instrumentation where ambient temperatures exceed standard commercial limits.
How many analog input channels does the R5F10266GSP#55 support, and what is their resolution?
The R5F10266GSP#55 supports 11 analog input channels (ANI0–ANI3, ANI16–ANI22) with 10-bit resolution and an internal 1.45 V reference voltage. The device also provides dedicated AVREFP and AVREFM pins for differential reference configuration, enabling accurate ratiometric measurements independent of supply voltage fluctuations.
R5F10266GSP#55 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:
- 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#55 FAQ
1.How can I place an order for R5F10266GSP#55 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10266GSP#55 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#55 reliable?
The price and inventory of R5F10266GSP#55 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10266GSP#55 is usually 5 days.
3.What payment methods are accepted for R5F10266GSP#55?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10266GSP#55 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10266GSP#55?
R5F10266GSP#55 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10266GSP#55 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#55?
For technical support, including R5F10266GSP#55 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10266GSP#55 requirements.
6.How does Aetrix verify that R5F10266GSP#55 is sourced from the original manufacturer or authorized distributors?
All R5F10266GSP#55 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#55 meets industry standards.
7.What is the process for return or replacement of R5F10266GSP#55?
All R5F10266GSP#55 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10266GSP#55, 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#55 part is unused and in its original packaging.
Return procedure for R5F10266GSP#55:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F10266GSP#55 Tags
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