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Renesas R5F1026ADSP#35
- Part No.:
- R5F1026ADSP#35
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 20-LSSOP (0.173", 4.40mm Width)
- Datasheet:
-
R5F1026ADSP#35.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 20LSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,514
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Product details
Overview
R5F1026ADSP#35 from Renesas Electronics is a 20-pin LSSOP ultra-low-power 16-bit RL78/G12 microcontroller designed for industrial embedded control. It integrates 2 KB code flash, 2 KB data flash, 1.5 KB RAM, 11-channel 10-bit ADC, and operates from 1.8 V to 5.5 V across –40°C to +85°C. Used in smart sensors and battery-powered HMI panels requiring secure firmware updates and low-active-power operation.
For engineers reviewing the R5F1026ADSP#35 datasheet, R5F1026ADSP#35 pinout, R5F1026ADSP#35 application, or R5F1026ADSP#35 equivalent, key selection criteria include its 2 KB data flash with 1M-cycle endurance, dual-channel CSI/I²C interfaces, DMA support, CRC hardware, and industrial-grade temperature rating - all within a compact 4.4 × 6.5 mm LSSOP package.
Technical Context
The R5F1026ADSP#35 implements the RL78 CPU core with 3-stage pipeline, supporting instruction execution as fast as 0.04167 µs at 24 MHz (high-speed on-chip oscillator) or as slow as 1 µs at 1 MHz. Its memory subsystem includes separate code flash (2 KB), data flash (2 KB), and RAM (1.5 KB), with background operation (BGO) enabled for concurrent data flash rewriting and program execution.
Peripheral integration centers on mixed-signal control: 11 analog inputs with internal 1.45 V reference and temperature sensor; four 16-bit timer channels with PWM capability; UART0, two CSI channels, two simplified I²C channels, and IICA0; plus safety features including CRC calculation unit, RAM guard, and SFR guard - all accessible via 18 I/O pins including 2× 6-V-tolerant N-ch open-drain outputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC with 3-stage pipeline, 1 MB address space |
| Flash Memory | 2 KB code flash + 2 KB data flash; supports self-programming and BGO |
| RAM | 1.5 KB on-chip RAM with RAM guard for integrity protection |
| ADC | 10-bit resolution, 11 input channels, internal 1.45 V reference, integrated temperature sensor |
| Timers | Four 16-bit TAU channels, one 12-bit interval timer, one window watchdog timer |
| Serial Interfaces | UART0 (1 ch), CSI00/CSI01 (2 ch), IIC00/IIC01 (2 ch), IICA0 (1 ch) |
| Operating Voltage | 1.8 V to 5.5 V supply; HALT/STOP/SNOOZE low-power modes down to 63 μA/MHz |
| Temperature Range | –40°C to +85°C (industrial grade, "D" suffix) |
Pinout & Package
Package: 20-pin plastic LSSOP (4.4 × 6.5 mm, 0.65-mm pitch), RoHS-compliant, tray packaging (#35).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/ANI16/PCLBUZ0/SCK00/SCL00 | Port 1 bit 0 / Analog Input 16 / Buzzer Output / SPI Clock / I²C Clock | Multi-function pin supporting serial communication clocking and programmable tone generation |
| P11/ANI17/SI00/RxD0/SDA00/TOOLRxD | Port 1 bit 1 / Analog Input 17 / SPI Data In / UART RX / I²C Data / Debug RX | Shared serial data path enabling flexible interface routing via PIOR register |
| P12/ANI18/SO00/TxD0/TOOLTxD | Port 1 bit 2 / Analog Input 18 / SPI Data Out / UART TX / Debug TX | Full-duplex serial I/O with tool interface compatibility for in-circuit debugging |
| P20/ANI0/AVREFP | Analog Input 0 / Positive Analog Reference | Dual-role pin providing primary analog input and stable reference voltage source |
| P21/ANI1/AVREFM | Analog Input 1 / Negative Analog Reference | Enables differential analog measurements and precision ADC biasing |
| P40/KR0/TOOL0 | Port 4 bit 0 / Key Return 0 / Debug Interface | Supports capacitive touch sensing and JTAG/SWD debug channel access |
| P125/KR1/SI01/RESET | Port 12 bit 5 / Key Return 1 / SPI Data In / Reset Input | Hardware reset with configurable key-scan function and peripheral I/O flexibility |
| VDD / VSS | Power Supply / Ground | Single-supply operation; decoupling required per datasheet layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power consumption | 63 μA/MHz active current enables multi-year battery life in portable industrial sensors |
| Data flash with BGO | 2 KB data flash supports background rewriting while executing code - critical for field firmware updates without system interruption |
| Hardware CRC engine | Dedicated CRC unit accelerates checksum validation for secure boot and OTA update integrity checks |
| RAM and SFR guard | Memory protection logic detects and prevents unintended writes to critical registers and RAM regions |
| High-accuracy on-chip oscillator | ±1.0% frequency accuracy (–20°C to +85°C) eliminates need for external crystal in cost-sensitive applications |
| Multi-voltage I/O | N-ch open-drain pins tolerate 6 V, enabling direct interfacing with 3.3 V/5 V peripherals without level shifters |
Applications
| Smart Sensor Node | Industrial HMI Panel |
|---|---|
Use Scenario: Battery-powered environmental sensor collecting temperature, humidity, and pressure data with local preprocessing and wireless upload. IC Role / Device Role / Timing Role: Main controller managing ADC sampling, CRC-secured data logging to data flash, and UART-based BLE module handshaking. Use Value: 2 KB data flash with 1M-cycle endurance enables reliable long-term event logging; SNOOZE mode extends battery life beyond 5 years. | Use Scenario: Touch-enabled operator interface for PLC-controlled machinery with real-time status display and fault reporting. IC Role / Device Role / Timing Role: Embedded UI processor handling capacitive key scan (KR0–KR5), buzzer feedback (PCLBUZ0), and RS-485 communication via UART0. Use Value: Integrated key interrupt and buzzer output reduce BOM count; 6-V-tolerant I/O simplifies connection to industrial bus transceivers. |
| Programmable Power Monitor | Low-Cost Motor Controller |
Use Scenario: DIN-rail mounted energy meter measuring AC line voltage/current using shunt and isolation amplifiers. IC Role / Device Role / Timing Role: Signal conditioner and communications hub acquiring analog inputs, computing RMS values, and transmitting via Modbus RTU over UART. Use Value: 11-channel 10-bit ADC with internal reference and temperature sensor enables accurate calibration drift compensation without external components. | Use Scenario: Fan or pump controller using PWM-driven MOSFETs with overcurrent and thermal shutdown monitoring. IC Role / Device Role / Timing Role: Real-time motor timing controller generating complementary PWM outputs via TAU0 channels and reading hall-effect feedback via TI00–TI03. Use Value: Four independent 16-bit timer channels support precise phase-shifted PWM generation; watchdog timer ensures fail-safe shutdown on firmware hang. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10269DSP#35 | Same package and pinout; 4 KB code flash, same 2 KB data flash and peripherals | Higher firmware capacity for complex protocol stacks or larger GUI assets | Select when >2 KB application code size is required without changing PCB layout |
| R5F1036ADSP#35 | No data flash; no DMA; no CRC; reduced serial interface count (1 CSI, 0 simplified I²C) | Limited to basic control tasks without field-upgradable data storage or safety-critical checksums | Choose only for cost-sensitive, static-function designs where data flash and hardware CRC are unnecessary |
Compared with R5F10269DSP#35, the R5F1026ADSP#35 trades flash capacity for lower cost and smaller footprint; compared with R5F1036ADSP#35, it adds essential reliability features - data flash endurance, DMA efficiency, and CRC acceleration - making it suitable for certified industrial firmware deployments.
Availability
R5F1026ADSP#35 is available at Aetrix Electronics and suitable for industrial automation, smart sensor design, and battery-powered HMI development requiring stable component supply, full lifecycle support, and traceable sourcing.
Supply support for R5F1026ADSP#35 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 MCU performance for cost-sensitive industrial control, targeting applications needing robust peripheral integration, secure firmware updates, and extended temperature operation without external timing components.
FAQ
What is the maximum operating frequency of the R5F1026ADSP#35?
The R5F1026ADSP#35 supports a maximum system clock frequency of 24 MHz using its high-speed on-chip oscillator. When driven by an external crystal (X1), the maximum main system clock is 20 MHz under VDD ≥ 2.7 V, or 16 MHz at 2.4–2.7 V. Instruction execution time ranges from 0.04167 µs (24 MHz) to 1 µs (1 MHz), configurable via clock source selection and prescaler settings in the clock generator module.
Does the R5F1026ADSP#35 include hardware data flash erase/write capability?
Yes, the R5F1026ADSP#35 integrates 2 KB of dedicated data flash memory with background operation (BGO) support, allowing simultaneous code execution and flash rewriting. It guarantees 1,000,000 rewrite cycles (typical) across the full VDD range (1.8–5.5 V), and includes flash shield window functionality to prevent unauthorized access during programming - all managed via Renesas' Data Flash Library Type04.
How many analog input channels does the R5F1026ADSP#35 support?
The R5F1026ADSP#35 provides 11 analog input channels (ANI0–ANI3, ANI16–ANI22) with 10-bit resolution and selectable internal reference voltage (1.45 V). It also includes an integrated temperature sensor and AVREFP/AVREFM pins for differential measurement configurations, enabling precision analog acquisition in compact industrial sensor nodes without external reference ICs.
Is the R5F1026ADSP#35 pin-compatible with other RL78/G12 20-pin variants?
Yes, the R5F1026ADSP#35 shares identical pin configuration and electrical characteristics with other 20-pin RL78/G12 LSSOP devices (e.g., R5F10269DSP#35, R5F10268DSP#35), including identical I/O mapping, peripheral function assignment, and power/ground pin locations - enabling drop-in replacement within the same memory and feature subset.
What safety features are implemented in the R5F1026ADSP#35?
The R5F1026ADSP#35 includes hardware-level safety features: CRC calculation unit for data integrity verification, RAM guard to detect unintended memory corruption, and SFR guard to prevent accidental register misconfiguration. These features are enabled independently of software and operate transparently - critical for IEC 61508-compliant industrial control firmware built on the R5F1026ADSP#35 platform.
R5F1026ADSP#35 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 20-LSSOP (0.173", 4.40mm Width)
- Series:
- RL78/G12
- Packaging:
- Tray
- 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:
- 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:
R5F1026ADSP#35 FAQ
1.How can I place an order for R5F1026ADSP#35 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F1026ADSP#35 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 R5F1026ADSP#35 reliable?
The price and inventory of R5F1026ADSP#35 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F1026ADSP#35 is usually 5 days.
3.What payment methods are accepted for R5F1026ADSP#35?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F1026ADSP#35 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F1026ADSP#35?
R5F1026ADSP#35 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F1026ADSP#35 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 R5F1026ADSP#35?
For technical support, including R5F1026ADSP#35 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F1026ADSP#35 requirements.
6.How does Aetrix verify that R5F1026ADSP#35 is sourced from the original manufacturer or authorized distributors?
All R5F1026ADSP#35 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 R5F1026ADSP#35 meets industry standards.
7.What is the process for return or replacement of R5F1026ADSP#35?
All R5F1026ADSP#35 units undergo pre-shipment inspection (PSI). If there is an issue with R5F1026ADSP#35, 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 R5F1026ADSP#35 part is unused and in its original packaging.
Return procedure for R5F1026ADSP#35:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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