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Home > Products > Integrated Circuits (ICs) > Embedded > Microcontrollers

Renesas R5F1026AGSP#V0

Name: R5F1026AGSP#V0
Brand: Renesas
SKU: R5F1026AGSP#V0
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: R5F1026AGSP#V0

Manufacturer:: Renesas

Category:: Microcontrollers

Package:: 20-LSSOP (0.173", 4.40mm Width)

Datasheet:: R5F1026AGSP#V0.pdf

Description:: IC MCU 16BIT 16KB FLASH 20LSSOP

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Product details

Overview

R5F1026AGSP#V0 from Renesas is a 20-pin LSSOP ultra-low-power 16-bit RL78/G12 MCU with 2 KB code flash, 2 KB data flash, 1.5 KB RAM, and industrial-grade operation from −40°C to +105°C. It integrates a 24 MHz high-accuracy on-chip oscillator (±1.0% over −20°C to +85°C), 10-bit 11-channel ADC, UART/CSI/I²C serial interfaces, 4-channel 16-bit TAU timer, and CRC hardware for embedded control in battery-powered industrial sensors and motor drives.

For engineers reviewing the R5F1026AGSP#V0 datasheet, R5F1026AGSP#V0 pinout, R5F1026AGSP#V0 application, or R5F1026AGSP#V0 equivalent, key selection criteria include its G-grade temperature rating, integrated data flash for field firmware updates, DMA support for low-CPU-overhead peripheral transfers, and verified 63 μA/MHz active power consumption at 1.8–5.5 V supply.

Technical Context

The R5F1026AGSP#V0 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and 1 MB address space. Its dual-oscillator system combines a 15 kHz low-speed on-chip oscillator for watchdog and interval timing with a programmable high-speed on-chip oscillator (1–24 MHz) enabling precise clock source selection without external crystals.

Peripheral integration includes two CSI channels (SPI-compatible), two simplified I²C channels, one UART channel, and hardware CRC for memory/data integrity - all accessible via dedicated pins or peripheral I/O redirection register (PIOR) remapping. The device supports background data flash rewriting (BGO) while executing code from program memory.

Key Specifications

Parameter	Value and Actual Design Meaning
Core	RL78 16-bit CISC CPU with 3-stage pipeline and 1 MB address space
Flash Memory	2 KB code flash + 2 KB data flash with block erase prohibition and self-programming capability
RAM	1.5 KB on-chip RAM supporting DMA transfers between SFR and memory in 2 clocks
Operating Voltage	1.8 V to 5.5 V single-supply operation with on-chip POR and 12-level voltage detector
Temperature Range	−40°C to +105°C (G-grade industrial qualification)
Power Consumption	63 μA/MHz typical active current; HALT/STOP/SNOOZE low-power modes supported
ADC	10-bit resolution, 11 input channels, internal 1.45 V reference, and integrated temperature sensor

Pinout & Package

Package: 20-pin plastic LSSOP (4.4 × 6.5 mm, 0.65-mm pitch), RoHS-compliant, tray packaging (#V0).

Pin/Terminal	Circuit Role	Design Meaning
P10/ANI16/PCLBUZ0/SCK00/SCL00	Multi-function port pin	Configurable as analog input ANI16, programmable clock/buzzer output, SPI clock (SCK00), or I²C clock (SCL00)
P11/ANI17/SI00/RxD0/SDA00/TOOLRxD	Multi-function port pin	Supports analog input ANI17, SPI data in (SI00), UART receive (RxD0), I²C data (SDA00), or debug interface input
P12/ANI18/SO00/TxD0/TOOLTxD	Multi-function port pin	Enables analog input ANI18, SPI data out (SO00), UART transmit (TxD0), or debug interface output
P13/ANI19/TI00/TO00/INTP2	Multi-function port pin	Provides analog input ANI19, timer input TI00, timer output TO00, or external interrupt INTP2
P14/ANI20/TI01/TO01/INTP3	Multi-function port pin	Supports analog input ANI20, timer input TI01, timer output TO01, or external interrupt INTP3
P20/ANI0/AVREFP	Analog reference pin	Positive analog reference voltage input (AVREFP) and primary analog input channel ANI0
P21/ANI1/AVREFM	Analog reference pin	Negative analog reference voltage input (AVREFM) and analog input channel ANI1
P22/ANI2	Analog input	Dedicated analog input channel ANI2 with internal sampling circuitry
P23/ANI3	Analog input	Dedicated analog input channel ANI3 supporting differential or single-ended measurement
P40/KR0/TOOL0	Debug interface pin	Primary debug communication line (TOOL0) and key return input KR0
P41/ANI22/SO01/SDA01/TI02/TO02/INTP1	Multi-function port pin	Combines analog input ANI22, SPI/I²C data, timer I/O, and interrupt capability in one pin
P42/ANI21/SCK01/SCL01/TI03/TO03	Multi-function port pin	Supports analog inputs ANI21/ANI22, second SPI/I²C clock, and dual timer functions
P60/KR4/SCLA0/(TxD0)	I²C interface pin	Primary I²C clock line (SCLA0); also configurable as UART transmit when remapped
P61/KR5/SDAA0/(RxD0)	I²C interface pin	Primary I²C data line (SDAA0); also configurable as UART receive when remapped
P121/KR3/X1/(TI03)/(INTP3)	Oscillator input	Crystal/ceramic resonator input (X1); also serves as key return and timer/interrupt function
P122/KR2/X2/EXCLK/(TI02)/(INTP2)	Oscillator output	Crystal/ceramic resonator output (X2); also supports external clock input (EXCLK)
P125/KR1/SI01/RESET	Reset control	Active-low reset input (RESET); also functions as SPI data in and key return
VDD	Power supply	Main positive supply rail (1.8–5.5 V) powering core, peripherals, and I/O
VSS	Ground	Common reference ground for analog/digital sections and power return path

Key Features

Feature	Design Value
Ultra-low-power operation	63 μA/MHz active current enables multi-year battery life in portable industrial sensors
Integrated data flash	2 KB data flash with 1,000,000 write cycles supports secure firmware updates and parameter storage
Hardware CRC engine	Dedicated CRC module accelerates memory checksums and communication frame validation without CPU load
Background data flash rewrite	BGO mode allows concurrent code execution and data flash programming for zero-interrupt-latency updates
Multi-oscillator clock system	Independent 15 kHz low-speed and 1–24 MHz high-speed oscillators enable precise timing across power modes
Peripheral I/O redirection	PIOR register enables dynamic remapping of UART, SPI, I²C, and timer signals to alternate pins

Applications

Industrial Temperature Sensor Node	Smart Motor Control Module
Use Scenario: Battery-powered wireless sensor node monitoring ambient temperature and humidity in HVAC ducts or factory floors. IC Role / Device Role / Timing Role: Primary controller managing ADC sampling, CRC-protected sensor data logging to data flash, and UART-based BLE/Wi-Fi module communication. Use Value: G-grade (−40°C to +105°C) operation ensures reliability in uncontrolled environments; 2 KB data flash stores calibration coefficients and historical logs without external EEPROM.	Use Scenario: Compact BLDC motor driver board for conveyor systems requiring closed-loop speed control and fault reporting. IC Role / Device Role / Timing Role: Real-time motor commutation controller using TAU timer PWM outputs and ADC feedback from current/voltage sensing. Use Value: 4-channel 16-bit TAU with 3 PWM outputs enables precise phase timing; 63 μA/MHz efficiency extends runtime during standby periods between motion cycles.
Programmable Logic Controller (PLC) I/O Expander	Energy Meter Communication Interface
Use Scenario: DIN-rail mounted I/O expansion module adding digital input/output and analog monitoring to legacy PLC racks. IC Role / Device Role / Timing Role: Isolated field-side interface processor handling opto-coupled inputs, relay drivers, and 10-bit analog acquisition from transducers. Use Value: N-ch open-drain I/O pins tolerate 6 V transients; 11-channel ADC with internal reference eliminates external precision references.	Use Scenario: Two-way communication bridge between utility-grade energy meter ICs and RF/wired AMI networks. IC Role / Device Role / Timing Role: Protocol translation engine converting I²C-based metrology data to UART-modulated sub-GHz RF packets. Use Value: Dual simplified I²C channels allow simultaneous connection to metering SoC and security co-processor; hardware CRC ensures packet integrity over noisy power-line channels.

Industrial Temperature Sensor Node

Smart Motor Control Module

Use Scenario: Battery-powered wireless sensor node monitoring ambient temperature and humidity in HVAC ducts or factory floors.

IC Role / Device Role / Timing Role: Primary controller managing ADC sampling, CRC-protected sensor data logging to data flash, and UART-based BLE/Wi-Fi module communication.

Use Value: G-grade (−40°C to +105°C) operation ensures reliability in uncontrolled environments; 2 KB data flash stores calibration coefficients and historical logs without external EEPROM.

Use Scenario: Compact BLDC motor driver board for conveyor systems requiring closed-loop speed control and fault reporting.

IC Role / Device Role / Timing Role: Real-time motor commutation controller using TAU timer PWM outputs and ADC feedback from current/voltage sensing.

Use Value: 4-channel 16-bit TAU with 3 PWM outputs enables precise phase timing; 63 μA/MHz efficiency extends runtime during standby periods between motion cycles.

Programmable Logic Controller (PLC) I/O Expander

Energy Meter Communication Interface

Use Scenario: DIN-rail mounted I/O expansion module adding digital input/output and analog monitoring to legacy PLC racks.

IC Role / Device Role / Timing Role: Isolated field-side interface processor handling opto-coupled inputs, relay drivers, and 10-bit analog acquisition from transducers.

Use Value: N-ch open-drain I/O pins tolerate 6 V transients; 11-channel ADC with internal reference eliminates external precision references.

Use Scenario: Two-way communication bridge between utility-grade energy meter ICs and RF/wired AMI networks.

IC Role / Device Role / Timing Role: Protocol translation engine converting I²C-based metrology data to UART-modulated sub-GHz RF packets.

Use Value: Dual simplified I²C channels allow simultaneous connection to metering SoC and security co-processor; hardware CRC ensures packet integrity over noisy power-line channels.

Equivalent & Alternatives

The following parts are listed as comparable options for similar microcontroller applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
R5F1026ADSP#V0	D-grade (−40°C to +85°C); identical flash/RAM/peripherals but lower temperature rating	Suitable for indoor industrial equipment without extended thermal exposure	Select when ambient operating temperature remains ≤+85°C and cost sensitivity outweighs extended thermal margin
R5F1036AGSP#V0	No data flash (0 KB); no DMA; reduced serial interface count (1 CSI, 0 simplified I²C, 1 UART)	Targeted at cost-optimized designs where field firmware updates and high-throughput peripheral transfers are unnecessary	Choose when data flash persistence and DMA acceleration are not required, and BOM cost reduction is critical

Compared with R5F1026ADSP#V0, the R5F1026AGSP#V0 provides guaranteed operation up to +105°C for harsh environments; versus R5F1036AGSP#V0, it delivers essential data flash durability and DMA bandwidth for real-time sensor fusion and over-the-air update readiness.

Availability

R5F1026AGSP#V0 is available at Aetrix Electronics and suitable for industrial temperature monitoring, smart motor control, PLC I/O expansion, and energy meter communication requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for R5F1026AGSP#V0 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 true low-power 16-bit MCUs optimized for cost-sensitive industrial control, sensor nodes, and appliance applications requiring robust operation from −40°C to +105°C.

FAQ

What is the maximum operating frequency and accuracy of the on-chip oscillator in R5F1026AGSP#V0?

The R5F1026AGSP#V0 features a high-speed on-chip oscillator selectable from 1 MHz to 24 MHz. At 24 MHz operation, its accuracy is ±1.0% over the temperature range −20°C to +85°C and ±2.0% from −40°C to +105°C - meeting industrial timing requirements without external crystal components. This specification is confirmed in the R01DS0193EJ0250 datasheet Section 1.3.2.

Does R5F1026AGSP#V0 support background data flash rewriting while executing application code?

Yes, the R5F1026AGSP#V0 supports Background Operation (BGO) for data flash rewriting. During BGO, the CPU executes instructions from code flash memory while the data flash is being programmed or erased - enabling seamless firmware updates and parameter logging without halting real-time tasks. This capability is documented in Section 1.1 Features and Chapter 3 of the RL78/G12 User's Manual.

How many analog input channels and what ADC resolution does R5F1026AGSP#V0 provide?

The R5F1026AGSP#V0 integrates an 11-channel, 10-bit successive approximation ADC with internal 1.45 V reference voltage and on-die temperature sensor. Input channels include ANI0–ANI3 and ANI16–ANI22, supporting both single-ended and differential measurements. This configuration is specified in Section 1.1 Features and Table 1-1 of the R01DS0193EJ0250 datasheet.

What peripheral I/O redirection capability does R5F1026AGSP#V0 offer?

The R5F1026AGSP#V0 implements a Peripheral I/O Redirection Register (PIOR) that allows dynamic remapping of UART, CSI, I²C, and timer signals to alternate pins - for example, assigning RxD0/TxD0 to P61/P60 instead of default P11/P12. This flexibility simplifies PCB layout and enables functional reuse of pins across design revisions, as detailed in Figure 4-8 of the RL78/G12 User's Manual.

Is hardware CRC functionality available on R5F1026AGSP#V0, and how is it used?

Yes, the R5F1026AGSP#V0 includes a dedicated hardware CRC calculation unit supporting CCITT and CRC-16 standards. It accelerates checksum generation for flash memory verification, communication frame integrity checks, and secure boot validation - offloading the CPU and ensuring deterministic timing. This feature is explicitly listed in Section 1.3.3 Peripheral Functions and Block Diagram (Page 11) of the datasheet.

R5F1026AGSP#V0 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:: 16KB (16K x 8)

Program Memory Type:: FLASH

EEPROM Size:: 2K x 8

RAM Size:: 1.5K 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:

R5F1026AGSP#V0 FAQ

1.How can I place an order for R5F1026AGSP#V0 through Aetrix?

Please submit a Request for Quotation (RFQ) for R5F1026AGSP#V0 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 R5F1026AGSP#V0 reliable?

The price and inventory of R5F1026AGSP#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F1026AGSP#V0 is usually 5 days.

3.What payment methods are accepted for R5F1026AGSP#V0?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F1026AGSP#V0 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for R5F1026AGSP#V0?

R5F1026AGSP#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your R5F1026AGSP#V0 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 R5F1026AGSP#V0?

For technical support, including R5F1026AGSP#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F1026AGSP#V0 requirements.

6.How does Aetrix verify that R5F1026AGSP#V0 is sourced from the original manufacturer or authorized distributors?

All R5F1026AGSP#V0 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 R5F1026AGSP#V0 meets industry standards.

7.What is the process for return or replacement of R5F1026AGSP#V0?

All R5F1026AGSP#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F1026AGSP#V0, 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 R5F1026AGSP#V0 part is unused and in its original packaging.

Return procedure for R5F1026AGSP#V0:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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