Renesas R5F10269ASP#V5
- Part No.:
- R5F10269ASP#V5
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 20-LSSOP (0.173", 4.40mm Width)
- Datasheet:
-
R5F10269ASP#V5.pdf
- Description:
- IC MCU 16BIT 12KB FLASH 20LSSOP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F10269ASP#V5 from Renesas Electronics is a 20-pin LSSOP ultra-low-power 16-bit RL78/G12 MCU with 12 KB code flash, 2 KB data flash, and 768 B RAM, operating from 1.8 V to 5.5 V at up to 24 MHz (31 DMIPS), featuring 11-channel 10-bit ADC, dual CSI/I²C interfaces, and STOP/HALT/SNOOZE low-power modes - deployed in battery-powered sensor nodes and industrial control panels.
For engineers reviewing the R5F10269ASP#V5 datasheet, R5F10269ASP#V5 pinout, R5F10269ASP#V5 application, or R5F10269ASP#V5 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°C to +85°C, integrated CRC and RAM/SFR guard for functional safety, and 20-pin LSSOP package with 18 I/Os including 2× 6-V-tolerant N-ch open-drain pins.
Technical Context
The R5F10269ASP#V5 implements the RL78 CPU core with 3-stage pipeline CISC architecture, 1 MB address space, and configurable instruction timing (0.04167 µs min @ 24 MHz). It integrates a dedicated low-speed on-chip oscillator (15 kHz) for watchdog operation and supports background data flash rewriting via BGO while executing from code flash.
Its peripheral set includes two CSI channels (SPI-compatible), two simplified I²C channels, one UART channel, four 16-bit TAU timer channels with PWM capability, and an 11-channel 10-bit A/D converter with internal 1.45 V reference and temperature sensor - all accessible through a flexible peripheral I/O redirection register (PIOR).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline, 1 MB address space |
| Max Operating Frequency | 24 MHz (31 DMIPS), supported by ±1.0% accurate on-chip oscillator |
| Memory Configuration | 12 KB code flash (1 KB block size), 2 KB data flash (1M rewrite cycles), 768 B RAM |
| Analog Peripherals | 10-bit A/D converter with 11 input channels, internal 1.45 V reference, and on-chip temperature sensor |
| Digital Interfaces | 2× CSI (SPI-compatible), 2× simplified I²C, 1× UART, 2× DMA channels |
| Power Management | HALT/STOP/SNOOZE modes; 63 μA/MHz active current; VDD = 1.8–5.5 V operation |
| Operating Temperature | –40°C to +85°C (A-grade consumer/industrial use) |
Pinout & Package
Package: 20-pin plastic LSSOP (4.4 × 6.5 mm, 0.65-mm pitch), RoHS-compliant, tube packaging (#V5).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/ANI16/PCLBUZ0/SCK00/SCL00 | Port 1 bit 0 / Analog Input 16 / Programmable Clock Output / CSI00 Clock / I²C00 Clock | Multi-function pin supporting serial clock output, buzzer tone generation, and analog sensing - selectable via PIOR |
| P11/ANI17/SI00/RxD0/SDA00/TOOLRxD | Port 1 bit 1 / Analog Input 17 / CSI00 Data In / UART0 RX / I²C00 Data / Debug RX | Shared serial interface and debug path; enables firmware update over UART or I²C without external level shifters |
| P12/ANI18/SO00/TxD0/TOOLTxD | Port 1 bit 2 / Analog Input 18 / CSI00 Data Out / UART0 TX / Debug TX | Full-duplex serial communication and analog input sharing reduces pin count in space-constrained designs |
| P13/ANI19/TI00/TO00/INTP2 | Port 1 bit 3 / Analog Input 19 / Timer Input 0 / Timer Output 0 / Interrupt 2 | Combines analog acquisition, edge-triggered timing capture, and interrupt signaling on single pin |
| P14/ANI20/TI01/TO01/INTP3 | Port 1 bit 4 / Analog Input 20 / Timer Input 1 / Timer Output 1 / Interrupt 3 | Enables dual-channel PWM generation or quadrature encoder input with interrupt-on-event capability |
| P20/ANI0/AVREFP | Port 2 bit 0 / Analog Input 0 / Positive Analog Reference | Provides precision reference voltage source for A/D conversion and supports differential analog measurement |
| P21/ANI1/AVREFM | Port 2 bit 1 / Analog Input 1 / Negative Analog Reference | Completes differential reference pair; allows ratiometric sensor measurements independent of supply variation |
| P22/ANI2 | Port 2 bit 2 / Analog Input 2 | Dedicated analog input with internal sampling capacitor; supports fast settling for multi-channel scanning |
| P23/ANI3 | Port 2 bit 3 / Analog Input 3 | Additional analog channel usable for thermistor or potentiometer interface in compact sensor modules |
| P40/KR0/TOOL0 | Port 4 bit 0 / Key Return 0 / Debug Interface | Supports capacitive touch key scanning and in-circuit debugging via single-wire SWD-like interface |
| P41/ANI22/SO01/SDA01/TI02/TO02/INTP1 | Port 4 bit 1 / Analog Input 22 / CSI01 Data Out / I²C01 Data / Timer Input 2 / Timer Output 2 / Interrupt 1 | High-flexibility pin enabling simultaneous analog sensing, serial comms, and time-critical event handling |
| P42/ANI21/SCK01/SCL01/TI03/TO03 | Port 4 bit 2 / Analog Input 21 / CSI01 Clock / I²C01 Clock / Timer Input 3 / Timer Output 3 | Enables second independent serial bus with synchronized timing capture for synchronized sensor sampling |
| P60/KR4/SCLA0/(TxD0) | Port 6 bit 0 / Key Return 4 / I²C00 Clock / UART0 TX (remappable) | Hardware I²C clock line with 6 V tolerance; supports mixed-voltage I²C bus interfacing (e.g., 3.3 V MCU ↔ 5 V sensor) |
| P61/KR5/SDAA0/(RxD0) | Port 6 bit 1 / Key Return 5 / I²C00 Data / UART0 RX (remappable) | Open-drain I²C data line with 6 V tolerance; eliminates need for external level translators in legacy bus designs |
| P121/KR3/X1/(TI03)/(INTP3) | Port 12 bit 1 / Key Return 3 / Crystal Oscillator Input / Timer Input 3 / Interrupt 3 | Primary crystal connection point; also serves as secondary timer input or interrupt source when X1 not used |
| P122/KR2/X2/EXCLK/(TI02)/(INTP2) | Port 12 bit 2 / Key Return 2 / Crystal Oscillator Output / External Clock In / Timer Input 2 / Interrupt 2 | Crystal output or external clock input; enables precise timing synchronization with external systems or RTC modules |
| P125/KR1/SI01/RESET | Port 12 bit 5 / Key Return 1 / CSI01 Data In / Active-Low Reset | Hardware reset input with internal pull-up; doubles as serial data input for daisy-chain programming or sensor data streaming |
| P137/INTP0 | Port 13 bit 7 / Interrupt 0 | Dedicated external interrupt pin with configurable edge sensitivity; ideal for wake-up-from-STOP event detection |
| VDD | Power Supply | Single 1.8–5.5 V supply rail; powers all digital and analog circuitry including A/D reference and oscillator |
| VSS | Ground | Common return path for digital logic, analog circuits, and I/O drivers; requires low-impedance PCB connection |
Key Features
| Feature | Design Value |
|---|---|
| On-chip Data Flash | 2 KB with background operation (BGO), enabling firmware updates without halting real-time tasks |
| Low-Power Operation | 63 μA/MHz active current and sub-μA STOP mode support >10-year battery life in coin-cell applications |
| Functional Safety Support | Integrated CRC calculation unit, RAM guard, and SFR guard for IEC 61508 SIL2-ready system design |
| Flexible Serial Connectivity | 2× CSI (SPI), 2× simplified I²C, and 1× UART - all configurable via PIOR for pin-multiplexing efficiency |
| High-Accuracy Oscillator | ±1.0% frequency stability over –20°C to +85°C eliminates need for external crystal in cost-sensitive designs |
| Analog Integration | 11-channel 10-bit ADC with internal 1.45 V reference and temperature sensor reduces BOM for environmental monitoring |
Applications
| Smart Home Sensor Hub | Industrial Motor Control Panel |
|---|---|
Use Scenario: Compact wireless node aggregating temperature, humidity, and occupancy data from multiple analog and I²C sensors. IC Role / Device Role / Timing Role: Central data acquisition and preprocessing unit with 11-channel ADC, dual I²C buses, and low-power STOP-mode wake-up. Use Value: Single-chip integration eliminates external ADC and level translators; ±1.0% oscillator enables reliable BLE timing without crystal. |
Use Scenario: Front-panel controller managing LED indicators, push-button inputs, relay outputs, and motor status feedback. IC Role / Device Role / Timing Role: Human-machine interface processor with key return scanning, GPIO-driven relays, and UART-based communication to main controller. Use Value: 10-key return inputs and 18 GPIOs enable full panel control; 2 KB data flash stores calibration and fault logs across power cycles. |
| 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 conditioning and display controller using 10-bit ADC, CSI00 for OLED, and SNOOZE mode for periodic sampling. Use Value: 63 μA/MHz active current extends battery life; internal temperature sensor compensates ADC gain drift during clinical use. |
Use Scenario: PLC-connected module reading utility meter registers via RS-485 and reporting via NB-IoT modem. IC Role / Device Role / Timing Role: Protocol bridge between isolated RS-485 PHY and modem UART, with CRC-16 checksum generation for data integrity. Use Value: Hardware CRC engine offloads checksum computation from host MCU; 2 KB data flash stores firmware update images securely. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10268ASP#V5 | 4 KB code flash, 2 KB data flash, 512 B RAM - smaller memory footprint | Suitable for simpler sensor firmware with minimal feature set and no OTA requirements | Select when application code size < 4 KB and data logging volume is low |
| R5F10369ASP#V5 | No data flash; ±5.0% on-chip oscillator accuracy; no DMA or CRC; only 1 CSI and 1 simplified I²C | Targeted at cost-optimized consumer devices where firmware updates and functional safety are not required | Choose for price-sensitive, non-safety-critical applications with static firmware |
Compared with R5F10268ASP#V5, the R5F10269ASP#V5 provides 8 KB more code flash for complex algorithms and larger OTA payloads; compared with R5F10369ASP#V5, it adds critical reliability features - 2 KB data flash for field-upgradable parameters, ±1.0% oscillator for timing-critical comms, and hardware CRC for data integrity - making it suitable for industrial deployments requiring long-term maintainability.
Availability
R5F10269ASP#V5 is available at Aetrix Electronics and suitable for smart home sensor hubs, industrial HMI panels, portable medical monitors, and energy meter communication modules requiring stable component supply, long-lifecycle support, and guaranteed traceable sourcing.
Supply support for R5F10269ASP#V5 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, with over 40 years of microcontroller innovation.
The RL78/G12 product line delivers true low-power 16-bit MCUs optimized for cost-sensitive, battery-operated, and industrial control applications - balancing performance, peripheral richness, and energy efficiency in compact packages.
FAQ
What is the maximum operating frequency and associated DMIPS rating for the R5F10269ASP#V5?
The R5F10269ASP#V5 operates at up to 24 MHz with a measured performance of 31 DMIPS. This rating is achieved using the high-speed on-chip oscillator at 24 MHz under standard test conditions (VDD = 3.3 V, TA = 25°C), and reflects integer instruction throughput per second - enabling real-time control loops and sensor fusion algorithms within its 12 KB code flash limit.
Does the R5F10269ASP#V5 include on-chip data flash memory, and what are its endurance specifications?
Yes, the R5F10269ASP#V5 integrates 2 KB of on-chip data flash memory rated for 1,000,000 write/erase cycles (typical) across the full VDD range of 1.8 V to 5.5 V. It supports background operation (BGO), allowing program execution from code flash while data flash is being rewritten - essential for robust firmware update and parameter storage in the R5F10269ASP#V5.
What low-power modes are supported by the R5F10269ASP#V5, and what is the typical current consumption in STOP mode?
The R5F10269ASP#V5 supports HALT, STOP, and SNOOZE low-power modes. In STOP mode with RAM retention and selected peripherals active, typical current consumption is less than 0.52 μA at VDD = 3.0 V and TA = 25°C. Wake-up is possible via external interrupt, RTC alarm, or low-voltage detector - making the R5F10269ASP#V5 suitable for decade-long battery operation in remote sensing applications.
How many analog input channels does the R5F10269ASP#V5 support, and what is the resolution and reference configuration?
The R5F10269ASP#V5 features an 11-channel, 10-bit successive-approximation A/D converter with selectable resolution (8- or 10-bit). It supports internal 1.45 V reference voltage and external differential references via AVREFP/AVREFM pins. The converter operates across the full VDD range (1.8–5.5 V), enabling direct interfacing with resistive sensors, thermistors, and potentiometers without external reference components in the R5F10269ASP#V5.
Is the R5F10269ASP#V5 pin-compatible with other RL78/G12 family members in the same 20-pin LSSOP package?
The R5F10269ASP#V5 shares identical pinout and package dimensions (LSSOP-20, 0.65-mm pitch) with other R5F102xxASP#V5 and R5F103xxASP#V5 variants. However, peripheral availability differs: R5F10269ASP#V5 includes data flash, CRC, DMA, and dual CSI/I²C - features absent in R5F10369ASP#V5. Pin compatibility enables layout reuse, but firmware must be validated for peripheral differences in each R5F10269ASP#V5 implementation.
R5F10269ASP#V5 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 20-LSSOP (0.173", 4.40mm Width)
- Series:
- RL78/G12
- Packaging:
- Tube
- 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#V5 FAQ
1.How can I place an order for R5F10269ASP#V5 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10269ASP#V5 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#V5 reliable?
The price and inventory of R5F10269ASP#V5 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10269ASP#V5 is usually 5 days.
3.What payment methods are accepted for R5F10269ASP#V5?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10269ASP#V5 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10269ASP#V5?
R5F10269ASP#V5 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10269ASP#V5 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#V5?
For technical support, including R5F10269ASP#V5 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10269ASP#V5 requirements.
6.How does Aetrix verify that R5F10269ASP#V5 is sourced from the original manufacturer or authorized distributors?
All R5F10269ASP#V5 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#V5 meets industry standards.
7.What is the process for return or replacement of R5F10269ASP#V5?
All R5F10269ASP#V5 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10269ASP#V5, 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#V5 part is unused and in its original packaging.
Return procedure for R5F10269ASP#V5:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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