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Renesas R5F1026AASM#55
- Part No.:
- R5F1026AASM#55
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 20-LSSOP (0.173", 4.40mm Width)
- Datasheet:
-
R5F1026AASM#55.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 20LSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,500
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Product details
Overview
R5F1026AASM#55 from Renesas Electronics is a 20-pin, 16 KB flash, 2 KB data flash, 1.5 KB RAM RL78/G12 16-bit microcontroller operating at 1.8–5.5 V with ultra-low power consumption (63 μA/MHz), integrated 10-bit ADC (11-channel), and dual serial interfaces (CSI00/CSI01 + IIC00/IIC01) for embedded sensor control in battery-powered consumer appliances.
For engineers reviewing the R5F1026AASM#55 datasheet, R5F1026AASM#55 pinout, R5F1026AASM#55 application, or R5F1026AASM#55 equivalent, key selection criteria include its 2 KB on-chip data flash with 1M rewrite cycles, 2-channel DMA support, CRC hardware accelerator, and TSSOP20 package compatibility with industrial-grade temperature range (−40°C to +85°C).
Technical Context
The R5F1026AASM#55 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, enabling minimum instruction execution time of 0.04167 μs at 24 MHz using the high-accuracy ±1.0% on-chip oscillator. It integrates a 12-bit interval timer, window watchdog timer, and programmable clock/buzzer output controller for deterministic real-time operation.
Its peripheral set includes two independent SAU0 channels supporting UART, CSI, and I²C protocols simultaneously, plus a 10-bit A/D converter with internal 1.45 V reference and temperature sensor-enabling direct analog sensing without external components in compact designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline, 1 MB address space |
| Flash Memory | 16 KB code flash + 2 KB data flash; supports background rewriting (BGO) and 1M write cycles |
| RAM | 1.5 KB on-chip RAM; includes RAM guard for safety-critical integrity checks |
| Operating Voltage | 1.8 V to 5.5 V single supply; enables direct Li-ion or 3.3 V/5 V system integration |
| Power Consumption | 63 μA/MHz active current; HALT/STOP/SNOOZE modes reduce standby to sub-μA levels |
| ADC | 10-bit resolution, 11 input channels, internal 1.45 V reference, and integrated temperature sensor |
| Oscillator Accuracy | ±1.0% over −20°C to +85°C using high-speed on-chip oscillator (1–24 MHz selectable) |
Pinout & Package
Package: 20-pin TSSOP (PTSP0020JI-A), 4.4 × 6.5 mm, 0.65-mm pitch, lead-free, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/ANI16/PCLBUZ0/SCK00/SCL00 | Port 1 bit 0 / Analog Input 16 / Programmable Clock Output / SPI Clock / I²C Clock | Multi-function pin supporting timer-driven buzzer tone generation or synchronous serial communication |
| P11/ANI17/SI00/RxD0/SDA00/TOOLRxD | Port 1 bit 1 / Analog Input 17 / SPI Data In / UART Receive / I²C Data / Debug RX | Shared serial interface pin enabling flexible protocol assignment via PIOR register |
| P12/ANI18/SO00/TxD0/TOOLTxD | Port 1 bit 2 / Analog Input 18 / SPI Data Out / UART Transmit / Debug TX | Enables full-duplex UART or SPI master/slave operation with tool interface capability |
| P13/ANI19/TI00/TO00/INTP2 | Port 1 bit 3 / Analog Input 19 / Timer Input 0 / Timer Output 0 / Interrupt 2 | Hardware timer capture/compare channel with interrupt capability for precise event timing |
| P14/ANI20/TI01/TO01/INTP3 | Port 1 bit 4 / Analog Input 20 / Timer Input 1 / Timer Output 1 / Interrupt 3 | Dedicated PWM-capable output for motor control or LED dimming with interrupt-on-match |
| P20/ANI0/AVREFP | Port 2 bit 0 / Analog Input 0 / ADC Positive Reference | Provides stable positive reference voltage for accurate 10-bit ADC conversions |
| P21/ANI1/AVREFM | Port 2 bit 1 / Analog Input 1 / ADC Negative Reference | Completes differential ADC reference pair; enables ratiometric sensor measurements |
| P40/KR0/TOOL0 | Port 4 bit 0 / Key Return 0 / Debug Interface | Supports capacitive touch key scanning and in-circuit debugging without additional pins |
| P125/KR1/SI01/RESET | Port 12 bit 5 / Key Return 1 / SPI Data In / Reset Input | Active-low hardware reset with key-scan and serial interface sharing; debounced externally |
| VDD / VSS | Power Supply / Ground | Single 1.8–5.5 V supply rail; requires local 0.1 µF decoupling per VDD pin |
Key Features
| Feature | Design Value |
|---|---|
| On-chip Data Flash | 2 KB with background operation (BGO) and 1,000,000 write cycles-enables field firmware updates without halting application code |
| Hardware CRC Accelerator | Dedicated CRC module compliant with CRC-16-CCITT; offloads checksum computation from CPU for secure OTA updates |
| Dual SAU0 Channels | Two independent serial array units each configurable as UART, CSI (SPI-like), or I²C-supports concurrent sensor (I²C) and actuator (UART) communication |
| Ultra-Low-Power Modes | HALT (0.52 μA), STOP (0.23 μA), and SNOOZE (retains RAM, wakes on peripheral event)-extends battery life in portable devices |
| Integrated Temperature Sensor | On-die sensor calibrated to ±3°C accuracy; eliminates external thermal IC in ambient monitoring applications |
Applications
| Smart Home Sensors | Portable Medical Devices |
|---|---|
Use Scenario: Battery-powered CO₂/motion/humidity sensor node transmitting data via UART to gateway. IC Role / Device Role / Timing Role: Main controller executing sensor fusion, ADC sampling, and low-power UART transmission scheduling. Use Value: 2 KB data flash stores calibration coefficients; 63 μA/MHz active current extends 2-year coin-cell life; integrated temperature sensor corrects humidity readings. | Use Scenario: Handheld pulse oximeter with analog front-end, OLED display, and Bluetooth LE interface. IC Role / Device Role / Timing Role: Signal acquisition controller managing 10-bit ADC sampling, LED drive timing, and UART-to-BLE bridge. Use Value: Dual SAU0 channels run UART (to BLE module) and CSI (to analog front-end) concurrently; SNOOZE mode wakes on finger detection interrupt. |
| Industrial Control Panels | White Goods User Interfaces |
Use Scenario: Touch-enabled HVAC control panel with rotary encoder, buzzer feedback, and RS-485 communication. IC Role / Device Role / Timing Role: HMI processor handling key scan, buzzer tone generation, and isolated UART communication. Use Value: PCLBUZ0 pin drives piezo buzzer directly; KR0–KR5 support up to 6-key capacitive touch; 1.8–5.5 V operation tolerates wide input rails. | Use Scenario: Washing machine control board managing motor driver enable, water level ADC, and display backlight PWM. IC Role / Device Role / Timing Role: System supervisor coordinating motor sequencing, analog sensing, and user interface timing. Use Value: TO00/TO01 pins generate precise PWM for LED backlight dimming; 11-channel ADC monitors thermistors, pressure sensors, and current shunts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F1026AASP#V5 | LSSOP20 package (PLSP0020JB-A); identical electrical specs and pinout mapping but different mechanical footprint | Requires PCB layout change due to LSSOP vs. TSSOP body dimensions and lead form | Select when board space constraints favor LSSOP's smaller height or when existing LSSOP assembly line is used |
| R5F1036AASM#55 | No data flash (0 KB); ±5.0% oscillator accuracy; no DMA or CRC; only 1 CSI and 1 I²C channel | Suitable for cost-sensitive, non-field-upgradable designs where BGO and hardware safety features are unnecessary | Choose only if data flash, CRC, or dual serial interface concurrency are not required-reduces BOM cost by ~12% |
Compared with R5F1026AASP#V5, the R5F1026AASM#55 offers identical functionality in TSSOP20 for drop-in replacement on compatible footprints; versus R5F1036AASM#55, it adds critical field-upgrade capability and hardware safety acceleration at modest cost premium.
Availability
R5F1026AASM#55 is available at Aetrix Electronics and suitable for smart home sensors, portable medical devices, and industrial control panels requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for R5F1026AASM#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 microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.
The RL78/G12 product line delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive, battery-operated consumer and industrial applications requiring integrated analog peripherals and robust firmware update capability.
FAQ
What is the maximum operating frequency of the R5F1026AASM#55?
The R5F1026AASM#55 supports a maximum system clock frequency of 24 MHz using its high-speed on-chip oscillator. This yields 31 DMIPS performance while maintaining 63 μA/MHz efficiency. External crystal operation is limited to 20 MHz (1.0–20.0 MHz range), and the low-speed on-chip oscillator runs at 15 kHz for ultra-low-power wake-up timing. All frequencies operate across the full 1.8–5.5 V supply range.
Does the R5F1026AASM#55 include hardware data flash erase/write capability?
Yes, the R5F1026AASM#55 integrates 2 KB of dedicated data flash memory with background operation (BGO) support, allowing program execution from code flash while rewriting data flash. It guarantees 1,000,000 write cycles at VDD = 1.8–5.5 V and includes flash shield window protection to prevent unauthorized access. The R5F1026AASM#55 requires use of Renesas' Data Flash Library Type04 for safe implementation.
What serial communication interfaces does the R5F1026AASM#55 support?
The R5F1026AASM#55 supports two independent Serial Array Units (SAU0), each configurable as UART, Simplified SPI (CSI), or Simplified I²C (IIC). Specifically, it provides UART0, CSI00, CSI01, IIC00, and IIC01-all accessible via shared pins (e.g., P11/P12 for UART0, P10/P11/P12 for CSI00). No standard I²C bus master mode is implemented; only simplified I²C with fixed timing is available.
Is the R5F1026AASM#55 pin-compatible with other RL78/G12 20-pin variants?
Yes, the R5F1026AASM#55 shares identical pinout and electrical characteristics with all RL78/G12 20-pin TSSOP variants (e.g., R5F10269ASM#55, R5F10267ASM#55), differing only in flash size (16 KB vs. 12 KB vs. 2 KB) and data flash presence. Pin functions-including ANI0–ANI22, TAU timers, SAU0 channels, and KR inputs-are fully consistent across the R5F1026x series in TSSOP20 packaging.
What is the operating temperature range specified for the R5F1026AASM#55?
The R5F1026AASM#55 is rated for operation from −40°C to +85°C, conforming to the "A" grade (consumer/industrial applications) per Renesas' part numbering scheme. This range is validated across the full 1.8–5.5 V supply voltage and includes guaranteed performance for all peripherals-including the 10-bit ADC, 2-channel DMA, and ±1.0% high-speed oscillator-without derating.
R5F1026AASM#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:
- -
- 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:
- External, Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F1026AASM#55 FAQ
1.How can I place an order for R5F1026AASM#55 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F1026AASM#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 R5F1026AASM#55 reliable?
The price and inventory of R5F1026AASM#55 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F1026AASM#55 is usually 5 days.
3.What payment methods are accepted for R5F1026AASM#55?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F1026AASM#55 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F1026AASM#55?
R5F1026AASM#55 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F1026AASM#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 R5F1026AASM#55?
For technical support, including R5F1026AASM#55 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F1026AASM#55 requirements.
6.How does Aetrix verify that R5F1026AASM#55 is sourced from the original manufacturer or authorized distributors?
All R5F1026AASM#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 R5F1026AASM#55 meets industry standards.
7.What is the process for return or replacement of R5F1026AASM#55?
All R5F1026AASM#55 units undergo pre-shipment inspection (PSI). If there is an issue with R5F1026AASM#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 R5F1026AASM#55 part is unused and in its original packaging.
Return procedure for R5F1026AASM#55:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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