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Renesas R5F1026AASP#V0
- Part No.:
- R5F1026AASP#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 20-LSSOP (0.173", 4.40mm Width)
- Datasheet:
-
R5F1026AASP#V0.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 20LSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,120
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Product details
Overview
R5F1026AASP#V0 from Renesas Electronics is a 20-pin LSSOP ultra-low-power 16-bit RL78/G12 MCU designed for consumer-grade embedded control, featuring 16 KB code flash, 2 KB data flash, 1.5 KB RAM, 10-bit A/D converter (11 channels), and operation from 1.8 V to 5.5 V. It delivers 31 DMIPS at 24 MHz with HALT/STOP/SNOOZE power modes and supports UART, CSI, and I²C interfaces in compact space-constrained applications like smart sensors and battery-powered IoT nodes.
For engineers reviewing the R5F1026AASP#V0 datasheet, R5F1026AASP#V0 pinout, R5F1026AASP#V0 application, or R5F1026AASP#V0 equivalent, key selection considerations include its 2 KB data flash with background operation (BGO), ±1.0% high-speed on-chip oscillator accuracy over –20 to +85°C, CRC and RAM/SFR guard safety features, and 20-pin LSSOP-0.65mm package compatibility with legacy TSSOP footprints.
Technical Context
The R5F1026AASP#V0 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and 1 MB address space. It integrates a 10-bit A/D converter with internal 1.45 V reference and temperature sensor, plus dual-channel DMA supporting transfers between SFR and RAM in just 2 clocks.
Its clock system combines a high-accuracy ±1.0% on-chip oscillator (1–24 MHz selectable), low-speed 15 kHz on-chip oscillator, and external crystal support (1–20 MHz). Power management includes POR, 12-level LVD, and three ultra-low-power operating modes-HALT, STOP, and SNOOZE-enabling sub-63 μA/MHz active current consumption.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC CPU with 3-stage pipeline and 1 MB address space |
| Flash Memory | 16 KB code flash + 2 KB data flash with BGO and 1M rewrite cycles (TYP) |
| RAM Size | 1.5 KB on-chip RAM supporting DMA transfers in 2 clocks |
| Operating Voltage | 1.8 V to 5.5 V single supply enabling direct Li-ion or coin-cell battery interface |
| A/D Converter | 10-bit resolution, 11 input channels, internal 1.45 V reference, and integrated temperature sensor |
| Power Modes | HALT (retains RAM), STOP (ultra-low leakage), and SNOOZE (peripheral wake-up with CPU sleep) |
| Oscillator Accuracy | ±1.0% over –20 to +85°C for high-speed on-chip oscillator (24 MHz option) |
Pinout & Package
Package: 20-pin plastic LSSOP (4.4 × 6.5 mm, 0.65-mm pitch), RoHS-compliant, tray-packaged (#V0).
| 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 serial communication, timer output, and analog sensing with peripheral I/O redirection |
| P11/ANI17/SI00/RxD0/SDA00/TOOLRxD | Port 1 bit 1 / Analog Input 17 / SPI Input / UART Receive / I²C Data / Debug RX | Shared UART/I²C/SPI receive path with tool interface capability for in-circuit debugging |
| P12/ANI18/SO00/TxD0/TOOLTxD | Port 1 bit 2 / Analog Input 18 / SPI Output / UART Transmit / I²C Data / Debug TX | Unified transmit path for serial protocols and debug communication; supports TTL-level UART |
| P13/ANI19/TI00/TO00/INTP2 | Port 1 bit 3 / Analog Input 19 / Timer Input 0 / Timer Output 0 / Interrupt Pin 2 | Hardware timer I/O with interrupt capability; enables precise edge-triggered timing and PWM generation |
| P14/ANI20/TI01/TO01/INTP3 | Port 1 bit 4 / Analog Input 20 / Timer Input 1 / Timer Output 1 / Interrupt Pin 3 | Dual timer channel with independent input/output and interrupt vectoring for motor control or pulse counting |
| P20/ANI0/AVREFP | Port 2 bit 0 / Analog Input 0 / Positive Analog Reference | Primary analog reference voltage source and first ADC channel; requires stable decoupling |
| P21/ANI1/AVREFM | Port 2 bit 1 / Analog Input 1 / Negative Analog Reference | Differential analog reference pair enabling ratiometric measurements and noise rejection |
| P22/ANI2 | Port 2 bit 2 / Analog Input 2 | General-purpose ADC input with programmable gain and sampling control |
| P23/ANI3 | Port 2 bit 3 / Analog Input 3 | Additional analog input supporting temperature sensor and internal reference monitoring |
| P40/KR0/TOOL0 | Port 4 bit 0 / Key Return 0 / Debug Interface I/O | Key matrix scan input and debug bidirectional signal; supports low-power wake-up from STOP mode |
| 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 Pin 1 | High-flexibility pin combining analog, serial, timer, and interrupt functions via PIOR configuration |
| P42/ANI21/SCK01/SCL01/TI03/TO03 | Port 4 bit 2 / Analog Input 21 / SPI Clock / I²C Clock / Timer Input 3 / Timer Output 3 | Dual-role clock line supporting synchronous serial peripherals and hardware timer capture/compare |
| 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; used for I²C bus pull-up or level-shifted UART output |
| P61/KR5/SDAA0/(RxD0) | Port 6 bit 1 / Key Return 5 / I²C Data / UART Receive (remapped) | N-ch open-drain I/O with 6 V tolerance; supports mixed-voltage I²C bus interfacing |
| P121/KR3/X1/(TI03)/(INTP3) | Port 12 bit 1 / Key Return 3 / Crystal Input / Timer Input 3 / Interrupt Pin 3 | Primary crystal oscillator input with optional timer/interrupt function; requires external load capacitor |
| P122/KR2/X2/EXCLK/(TI02)/(INTP2) | Port 12 bit 2 / Key Return 2 / Crystal Output / External Clock / Timer Input 2 / Interrupt Pin 2 | Crystal oscillator output or external clock input; supports bypass mode for precision timing sources |
| P125/KR1/SI01/RESET | Port 12 bit 5 / Key Return 1 / SPI Input / Reset Input | Active-low reset pin with internal pull-up; also serves as SPI input when not in reset state |
| P137/INTP0 | Port 13 bit 7 / Interrupt Pin 0 | Dedicated external interrupt input with configurable edge sensitivity and priority |
| VDD | Power Supply | 1.8–5.5 V main supply; powers all digital and analog circuitry including ADC and oscillators |
| VSS | Ground | Reference ground for analog and digital domains; must be low-impedance and separated per layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 63 μA/MHz active current enables >1-year battery life in coin-cell-powered sensor nodes |
| Data flash with BGO | 2 KB data flash allows firmware parameter updates during runtime without halting application execution |
| CRC and memory guard | On-chip CRC engine and RAM/SFR guard detect memory corruption and prevent unauthorized access |
| Multi-protocol serial interface | 2 CSI, 2 simplified I²C, and 1 UART channels enable concurrent sensor, display, and host communication |
| Temperature-aware A/D | Integrated temperature sensor and 1.45 V reference provide self-calibrating analog measurement capability |
| Flexible clock system | Selectable 1–24 MHz on-chip oscillator eliminates need for external crystal in cost-sensitive designs |
Applications
| Smart Home Sensor Node | Industrial Control Panel |
|---|---|
Use Scenario: Battery-powered occupancy/motion sensor with ambient light and temperature monitoring. IC Role / Device Role / Timing Role: Main system controller executing sensor fusion, wireless transmission scheduling, and ultra-low-power wake-up sequencing. Use Value: 63 μA/MHz active current and SNOOZE mode reduce average power to <10 μA, extending CR2032 battery life beyond 2 years. |
Use Scenario: Front-panel HMI for PLC-based machinery with LED indicators, push-button inputs, and RS-485 communication. IC Role / Device Role / Timing Role: Dedicated UI processor managing key scanning, buzzer feedback, display refresh, and isolated UART-to-RS485 bridging. Use Value: N-ch open-drain pins (P60/P61) tolerate 6 V, enabling direct interface with industrial 5 V logic and optocouplers without level shifters. |
| Portable Medical Monitor | White Goods Appliance Controller |
Use Scenario: Handheld pulse oximeter with analog front-end, OLED display, and Bluetooth LE connectivity. IC Role / Device Role / Timing Role: Signal acquisition controller performing real-time ADC sampling, digital filtering, and BLE packet formatting. Use Value: 11-channel 10-bit ADC with internal temperature sensor and 1.45 V reference ensures clinical-grade accuracy without external calibration components. |
Use Scenario: Washing machine mainboard managing motor drive signals, water level sensing, user interface, and energy metering. IC Role / Device Role / Timing Role: Secondary microcontroller coordinating UI, safety interlocks, and sensor polling while offloading tasks from primary MCU. Use Value: Dual-channel DMA enables simultaneous ADC reads and flash writes during motor commutation events, eliminating timing jitter in critical control loops. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10269ASP#V0 | Same package and pinout; 12 KB code flash, 2 KB data flash, 768 B RAM | Lower flash/RAM capacity suits simpler firmware with reduced feature set | Select when application firmware fits within 12 KB and requires identical peripheral count and power profile |
| R5F10268ASP#V0 | Same package and pinout; 8 KB code flash, 2 KB data flash, 512 B RAM | Reduced memory footprint targets cost-optimized designs with minimal peripheral usage | Choose for entry-level appliances or sensors where UART-only communication suffices and no BGO is required |
Compared with R5F10269ASP#V0 and R5F10268ASP#V0, the R5F1026AASP#V0 provides maximum on-chip memory (16 KB flash/1.5 KB RAM) within the 20-pin LSSOP footprint, enabling complex sensor fusion algorithms and field-upgradable firmware without external storage.
Availability
R5F1026AASP#V0 is available at Aetrix Electronics and suitable for smart home sensors, portable medical devices, and industrial HMI panels requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.
Supply support for R5F1026AASP#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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power management ICs for automotive, industrial, and IoT markets.
The RL78/G12 product line delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive, battery-operated, and safety-aware embedded systems requiring integrated analog peripherals and robust firmware update capability.
FAQ
What is the maximum operating frequency and associated DMIPS performance of the R5F1026AASP#V0?
The R5F1026AASP#V0 operates at up to 24 MHz using its high-speed on-chip oscillator and delivers 31 DMIPS at that frequency. Its minimum instruction execution time is 0.04167 µs under those conditions, enabling deterministic real-time response for time-critical control loops in the R5F1026AASP#V0.
Does the R5F1026AASP#V0 support background data flash rewriting while executing application code?
Yes, the R5F1026AASP#V0 includes 2 KB of data flash memory with background operation (BGO) capability, allowing instructions to execute from program memory while simultaneously rewriting data flash. This feature is essential for reliable firmware parameter updates in the R5F1026AASP#V0 without service interruption.
What safety features are integrated into the R5F1026AASP#V0 for industrial applications?
The R5F1026AASP#V0 integrates CRC calculation hardware, RAM guard, and SFR guard to detect memory corruption and prevent unauthorized register access. These features meet basic functional safety requirements for consumer and industrial applications, enhancing system reliability in the R5F1026AASP#V0.
How many analog input channels does the R5F1026AASP#V0 support, and what reference voltage options are available?
The R5F1026AASP#V0 supports 11 analog input channels with 10-bit resolution and includes an internal 1.45 V reference voltage plus dedicated AVREFP/AVREFM pins for external reference. This enables accurate ratiometric measurements across varying supply voltages in the R5F1026AASP#V0.
Is the R5F1026AASP#V0 pin-compatible with other RL78/G12 20-pin variants such as R5F10269ASP#V0?
Yes, the R5F1026AASP#V0 shares identical 20-pin LSSOP packaging, pinout, and peripheral mapping with R5F10269ASP#V0 and R5F10268ASP#V0. This allows drop-in replacement across memory variants while preserving PCB layout and firmware compatibility for the R5F1026AASP#V0.
R5F1026AASP#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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F1026AASP#V0 FAQ
1.How can I place an order for R5F1026AASP#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F1026AASP#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 R5F1026AASP#V0 reliable?
The price and inventory of R5F1026AASP#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F1026AASP#V0 is usually 5 days.
3.What payment methods are accepted for R5F1026AASP#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F1026AASP#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F1026AASP#V0?
R5F1026AASP#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F1026AASP#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 R5F1026AASP#V0?
For technical support, including R5F1026AASP#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F1026AASP#V0 requirements.
6.How does Aetrix verify that R5F1026AASP#V0 is sourced from the original manufacturer or authorized distributors?
All R5F1026AASP#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 R5F1026AASP#V0 meets industry standards.
7.What is the process for return or replacement of R5F1026AASP#V0?
All R5F1026AASP#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F1026AASP#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 R5F1026AASP#V0 part is unused and in its original packaging.
Return procedure for R5F1026AASP#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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