Renesas R5F10269ASP#V0
- Part No.:
- R5F10269ASP#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 20-LSSOP (0.173", 4.40mm Width)
- Datasheet:
-
R5F10269ASP#V0.pdf
- Description:
- IC MCU 16BIT 12KB FLASH 20LSSOP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F10269ASP#V0 from Renesas Electronics is a 20-pin LSSOP ultra-low-power 16-bit RL78/G12 microcontroller with 12 KB code flash, 2 KB data flash, 768 B RAM, and operation from 1.8 V to 5.5 V. It delivers 31 DMIPS at 24 MHz, features an integrated 10-bit 11-channel ADC, dual CSI/I²C serial interfaces, and supports HALT/STOP/SNOOZE low-power modes for battery-powered sensor nodes and industrial control panels.
For engineers reviewing the R5F10269ASP#V0 datasheet, R5F10269ASP#V0 pinout, R5F10269ASP#V0 application, or R5F10269ASP#V0 equivalent, key selection criteria include its 2 KB on-chip data flash with 1M rewrite cycles, ±1.0% high-speed on-chip oscillator accuracy over –20 to +85°C, CRC hardware acceleration, and DMA controller-critical for deterministic firmware updates and real-time sensor fusion in resource-constrained embedded systems.
Technical Context
The R5F10269ASP#V0 implements the RL78 CPU core with a 3-stage CISC pipeline, 1 MB address space, and configurable instruction timing (0.04167 µs min @ 24 MHz). Its power architecture integrates a POR circuit, 12-level voltage detector, and dedicated low-speed on-chip oscillator (15 kHz) for watchdog operation independent of main clock sources.
Peripheral integration includes two CSI channels (SPI-compatible), two simplified I²C channels, one UART channel, four 16-bit TAU timer channels with PWM capability, and hardware CRC generation-enabling robust communication stack offload and secure firmware integrity verification without CPU intervention.
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 | 12 KB code flash + 2 KB data flash with background operation (BGO) and 1,000,000 write cycles |
| RAM | 768 B on-chip RAM supporting DMA transfers in 2 clocks between SFR and memory |
| Operating Voltage | 1.8 V to 5.5 V single supply-enables direct interface with 1.8/2.5/3.3 V peripherals without level shifters |
| ADC | 10-bit resolution, 11-channel SAR ADC with internal 1.45 V reference and integrated temperature sensor |
| Timers | Four 16-bit timer channels (TAU0), one 12-bit interval timer, and one window watchdog timer |
| Oscillator | High-speed on-chip oscillator selectable from 1–24 MHz with ±1.0% accuracy (–20 to +85°C) |
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 |
|---|---|---|
| P21/ANI1/AVREFM | Analog input / ADC reference minus | Provides negative reference for differential ADC measurements; supports AVREFP/AVREFM differential mode |
| P11/ANI17/SI00/RxD0/SDA00/TOOLRxD | Serial data input / UART receive / I²C data / debug RX | Multi-function pin enabling shared physical layer for UART, I²C, and on-chip debug communication |
| P12/ANI18/SO00/TxD0/TOOLTxD | Serial data output / UART transmit / I²C clock / debug TX | Enables full-duplex UART or half-duplex I²C master/slave operation; supports tool-side programming |
| P60/KR4/SCLA0/(TxD0) | I²C clock / key return / alternate UART TX | Dedicated SCL line for I²C bus; also serves as key scan input or secondary UART output via PIOR |
| P61/KR5/SDAA0/(RxD0) | I²C data / key return / alternate UART RX | Dedicated SDA line for I²C bus; supports key matrix scanning or secondary UART input via PIOR |
| P125/KR1/SI01/RESET | Serial input / key return / active-low reset | Combines hardware reset assertion with SPI slave input and key scan functionality-reduces pin count in compact designs |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power consumption | 63 μA/MHz active current enables >5-year battery life in coin-cell-powered IoT endpoints |
| Hardware CRC accelerator | Offloads checksum computation for firmware validation and secure boot without CPU cycles or latency penalty |
| Data flash with BGO | Allows concurrent program execution and non-volatile parameter storage-critical for field-upgradable devices |
| RAM guard & SFR guard | Prevents accidental writes to critical memory regions, improving system reliability in safety-aware applications |
| Multi-voltage I/O | Supports direct interfacing with 1.8 V, 2.5 V, and 3.3 V peripherals-eliminates external level translators |
Applications
| Smart Home Sensor Hub | Industrial Motor Control Panel |
|---|---|
Use Scenario: Central node aggregating temperature, humidity, and motion data from multiple wireless sensors before forwarding via UART to gateway. IC Role / Device Role / Timing Role: Main MCU executing sensor fusion algorithms, managing dual CSI buses for local SPI sensors, and driving UART-to-Bluetooth bridge. Use Value: 12 KB flash stores multi-sensor firmware; 2 KB data flash retains calibration coefficients across power cycles; ±1.0% oscillator ensures accurate UART baud rate generation without external crystal. | Use Scenario: Embedded controller in HVAC actuator monitoring motor current, position feedback, and ambient temperature while enforcing safety interlocks. IC Role / Device Role / Timing Role: Real-time control unit running PID loop at 1 kHz using TAU timers, reading analog motor current via 10-bit ADC, and validating firmware integrity via hardware CRC. Use Value: RAM guard prevents corruption of PID coefficients; STOP mode reduces standby current to <1 μA during idle periods; 1.8–5.5 V operation tolerates brown-out conditions in factory power environments. |
| Portable Medical Monitor | Energy Meter Communication Module |
Use Scenario: Battery-powered pulse oximeter acquiring analog photodiode signals and driving OLED display via SPI. IC Role / Device Role / Timing Role: Signal acquisition MCU performing ADC sampling, digital filtering, and SPI display refresh with precise timing via interval timer. Use Value: Integrated temperature sensor enables automatic ADC offset compensation; SNOOZE mode allows periodic wake-up for measurement without full CPU restart overhead. | Use Scenario: PLC-based metering module collecting kWh data and communicating via RS-485 using isolated UART interface. IC Role / Device Role / Timing Role: Protocol handler converting Modbus RTU frames to internal register map, managing EEPROM emulation in data flash. Use Value: Dual CSI channels support simultaneous SPI-based energy IC readout and isolated RS-485 transceiver control; 1,000,000 data flash writes ensure >10-year logging endurance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10268ASP#V0 | 4 KB code flash, 2 KB data flash, 512 B RAM - reduced program capacity and memory | Suitable for simpler sensor nodes with minimal firmware footprint and no complex protocol stacks | Select when application fits within 4 KB flash and requires identical peripheral set and low-power profile |
| R5F10369ASP#V0 | No data flash, no DMA, no CRC, ±5.0% oscillator accuracy - lower cost but fewer safety/performance features | Appropriate for cost-sensitive consumer devices where firmware updates are infrequent and deterministic timing is not required | Choose only if data flash persistence, hardware CRC, and tight oscillator tolerance are unnecessary for the target use case |
Compared with R5F10268ASP#V0, the R5F10269ASP#V0 provides 8 KB more flash for larger firmware and enhanced connectivity stacks; versus R5F10369ASP#V0, it adds critical reliability features-data flash for field updates, DMA for efficient sensor data movement, and CRC for secure boot-making it suitable for industrial and medical applications requiring long-term maintainability and functional safety.
Availability
R5F10269ASP#V0 is available at Aetrix Electronics and suitable for smart home sensor hubs, industrial motor control panels, portable medical monitors, and energy meter communication modules requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for R5F10269ASP#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 headquartered in Tokyo, Japan, delivering trusted embedded solutions for automotive, industrial, infrastructure, and IoT markets.
The RL78/G12 product line was designed specifically for ultra-low-power general-purpose embedded control-balancing energy efficiency, integrated peripherals, and cost-effective packaging for battery-operated and space-constrained applications.
FAQ
What is the maximum operating frequency and corresponding DMIPS rating of the R5F10269ASP#V0?
The R5F10269ASP#V0 operates at up to 24 MHz using its high-speed on-chip oscillator and achieves 31 DMIPS performance. This benchmark reflects its RL78 CPU core's 3-stage pipeline efficiency and is measured under standard conditions (VDD = 2.7–5.5 V, TA = –40 to +85°C). The R5F10269ASP#V0 maintains this performance across its full 1.8–5.5 V supply range, making it suitable for variable-voltage battery applications.
Does the R5F10269ASP#V0 include on-chip data flash memory, and what are its endurance specifications?
Yes, the R5F10269ASP#V0 includes 2 KB of on-chip data flash memory with 1,000,000 write/erase cycles (typical) and background operation (BGO) capability. This allows the R5F10269ASP#V0 to execute program code from main flash while simultaneously rewriting data flash-essential for logging, configuration storage, and firmware updates without interrupting real-time operation.
What low-power modes does the R5F10269ASP#V0 support, and what is its typical current consumption in each?
The R5F10269ASP#V0 supports HALT, STOP, and SNOOZE modes. In HALT mode, current drops to ~1.2 μA (typical); in STOP mode, it reaches ~0.5 μA (typical); and SNOOZE enables selective peripheral operation (e.g., UART receive) while CPU remains halted, consuming ~2.1 μA (typical). These values are specified at VDD = 3.0 V and TA = 25°C, and all modes retain RAM content and allow wake-up via interrupts or reset.
How many analog input channels and what ADC resolution does the R5F10269ASP#V0 provide?
The R5F10269ASP#V0 integrates a 10-bit successive approximation register (SAR) ADC with 11 analog input channels (ANI0–ANI3, ANI16–ANI22). It includes an internal 1.45 V reference voltage and an integrated temperature sensor, enabling self-calibrated measurements without external components. The ADC supports single-ended and differential modes using AVREFP/AVREFM pins.
Is the R5F10269ASP#V0 pin-compatible with other RL78/G12 variants in the same 20-pin LSSOP package?
The R5F10269ASP#V0 shares identical pinout and package (20-pin LSSOP, PLSP0020JB-A) with other R5F102xxASP#V0 and R5F103xxASP#V0 variants. However, peripheral availability differs: R5F10269ASP#V0 includes data flash, DMA, CRC, and dual CSI/I²C channels, while R5F103xx variants omit these features. Pin compatibility enables PCB reuse, but firmware and power design must account for functional differences.
R5F10269ASP#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:
- 12KB (12K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 2K x 8
- RAM Size:
- 1K 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:
R5F10269ASP#V0 FAQ
1.How can I place an order for R5F10269ASP#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10269ASP#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 R5F10269ASP#V0 reliable?
The price and inventory of R5F10269ASP#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10269ASP#V0 is usually 5 days.
3.What payment methods are accepted for R5F10269ASP#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10269ASP#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10269ASP#V0?
R5F10269ASP#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10269ASP#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 R5F10269ASP#V0?
For technical support, including R5F10269ASP#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10269ASP#V0 requirements.
6.How does Aetrix verify that R5F10269ASP#V0 is sourced from the original manufacturer or authorized distributors?
All R5F10269ASP#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 R5F10269ASP#V0 meets industry standards.
7.What is the process for return or replacement of R5F10269ASP#V0?
All R5F10269ASP#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10269ASP#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 R5F10269ASP#V0 part is unused and in its original packaging.
Return procedure for R5F10269ASP#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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