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Renesas R5F10269ASP#X0
- Part No.:
- R5F10269ASP#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 20-LSSOP (0.173", 4.40mm Width)
- Datasheet:
-
R5F10269ASP#X0.pdf
- Description:
- IC MCU 16BIT 12KB FLASH 20LSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,976
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Product details
Overview
R5F10269ASP#X0 from Renesas Electronics is a 20-pin LSSOP ultra-low-power 16-bit RL78/G12 microcontroller designed for cost-sensitive consumer and industrial embedded control. It integrates 12 KB code flash, 2 KB data flash, 768 B RAM, 10-bit 11-channel ADC, 4-channel 16-bit TAU timer, UART/CSI/I²C serial interfaces, and operates from 1.8–5.5 V at –40°C to +85°C - enabling battery-powered sensor nodes and smart appliance controllers.
For engineers reviewing the R5F10269ASP#X0 datasheet, R5F10269ASP#X0 pinout, R5F10269ASP#X0 application, or R5F10269ASP#X0 equivalent, this page delivers verified technical context, validated pin functions, real-world use cases, and qualified alternative parts - all aligned with Rev.2.50 (Jan 2025) official RL78/G12 documentation.
Technical Context
The R5F10269ASP#X0 implements the RL78 CPU core with 3-stage pipeline CISC architecture, delivering 31 DMIPS at 24 MHz while consuming only 63 μA/MHz. Its memory subsystem includes 12 KB code flash (1 KB block size), 2 KB data flash supporting background operation (BGO) and 1M rewrite cycles, and 768 B on-chip RAM - all secured by flash shield window and block erase prohibition.
Peripherals include dual simplified SPI (CSI00/CSI01), dual simplified I²C (IIC00/IIC01), one UART0 channel, 4-channel 16-bit timer array (TAU0), 12-bit interval timer, watchdog timer, CRC calculation unit, and key interrupt support - 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 Architecture | RL78 16-bit CISC with 3-stage pipeline; enables deterministic real-time control with 0.04167 µs min instruction time @ 24 MHz |
| Memory | 12 KB code flash (1 KB blocks), 2 KB data flash (BGO enabled), 768 B RAM - supports firmware updates and parameter logging without halting execution |
| Power Supply | 1.8–5.5 V operation; HALT/STOP/SNOOZE low-power modes reduce active current to 63 μA/MHz |
| Analog Peripherals | 10-bit 11-channel ADC with internal 1.45 V reference and temperature sensor - suitable for direct thermal monitoring and analog sensor interfacing |
| Timers & PWM | 4-channel 16-bit TAU timer with up to 3 PWM outputs; 12-bit interval timer and window watchdog - meets motor control and safety timing requirements |
| Serial Interfaces | UART0 (1 ch), CSI00/CSI01 (2 ch), IIC00/IIC01 (2 ch); supports mixed-protocol communication with I²C-compatible peripherals and SPI sensors |
| Operating Temperature | –40°C to +85°C (A-grade); qualified for consumer and industrial ambient environments without derating |
Pinout & Package
Package: 20-pin plastic LSSOP (4.4 × 6.5 mm, 0.65-mm pitch), JEDEC standard PLSP0020JB-A footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P21/ANI1/AVREFM | Analog input / ADC reference minus | Provides negative reference for differential ADC measurements; supports ratiometric sensor readings |
| P22/ANI2 | Analog input | Dedicated ADC channel for external voltage sensing; shares no digital function to minimize noise coupling |
| P23/ANI3 | Analog input | Third dedicated analog input; usable with internal temperature sensor for system health monitoring |
| P10/ANI16/PCLBUZ0/SCK00/SCL00 | Multiplexed port pin | Configurable as ADC input, programmable clock/buzzer output, or master clock for CSI/I²C - enables flexible peripheral sharing |
| P11/ANI17/SI00/RxD0/SDA00/TOOLRxD | Serial data input / UART receive / I²C data | Combines SPI slave-in, UART RX, and I²C SDA with debug tool interface - simplifies board routing in space-constrained designs |
| P12/ANI18/SO00/TxD0/TOOLTxD | Serial data output / UART transmit | Supports full-duplex UART, SPI slave-out, and debug tool TX on single pin - reduces pin count without sacrificing debug capability |
| P13/ANI19/TI00/TO00/INTP2 | Timer input/output / interrupt | Enables edge-triggered capture, PWM generation, and external interrupt handling - critical for encoder or pulse-width measurement |
| P14/ANI20/TI01/TO01/INTP3 | Timer input/output / interrupt | Second timer I/O pair for dual-channel timing tasks (e.g., motor phase control or dual-sensor synchronization) |
| P61/KR5/SDAA0/(RxD0) | I²C data / key return | Open-drain I²C bus line with 6 V tolerance; also serves as key scan input - supports direct connection to 3.3 V/5 V peripherals and mechanical keypads |
| P60/KR4/SCLA0/(TxD0) | I²C clock / key return | Open-drain I²C clock line with 6 V tolerance; enables robust multi-voltage I²C bus design and shared key matrix scanning |
| P20/ANI0/AVREFP | Analog input / ADC reference plus | Primary positive ADC reference; used with AVREFM for differential mode or standalone for single-ended measurements |
| P40/KR0/TOOL0 | Debug interface / key return | Single-wire debug I/O for programming and real-time trace; doubles as key scan line to minimize BOM count |
| P137/INTP0 | External interrupt | Dedicated wake-up interrupt pin; supports low-latency response to external events (e.g., button press or alarm signal) |
| P122/KR2/X2/EXCLK/(TI02)/(INTP2) | Crystal oscillator / external clock input | Connects to X2 of external crystal; also accepts external clock source or serves as timer input - provides clock flexibility |
| P121/KR3/X1/(TI03)/(INTP3) | Crystal oscillator / external clock input | Connects to X1 of external crystal; supports high-accuracy timing or external clock injection for synchronized systems |
| VSS | Ground | Primary analog/digital ground reference; must be connected to PCB ground plane for stable ADC and low-noise operation |
| VDD | Power supply | Single 1.8–5.5 V supply powers entire device; internal regulator eliminates need for external LDO in many applications |
| P42/ANI21/SCK01/SCL01/TI03/TO03 | Multiplexed port pin | Supports second CSI/I²C channel clock, ADC input, or timer I/O - expands serial connectivity without additional pins |
| P41/ANI22/SO01/SDA01/TI02/TO02/INTP1 | Multiplexed port pin | Enables second CSI/I²C data path, ADC input, or timer channel - allows dual independent serial buses or enhanced timing resolution |
| P125/KR1/SI01/RESET | Reset input / SPI slave-in | Active-low hardware reset with internal pull-up; also functions as SPI slave-in during normal operation - saves dedicated reset pin |
Key Features
| Feature | Design Value |
|---|---|
| True low-power platform | 63 μA/MHz active current and STOP mode down to 0.52 μA - extends battery life in portable and IoT edge devices |
| Data flash with BGO | 2 KB data flash supports background rewriting while executing code - enables seamless firmware parameter updates without runtime interruption |
| High-accuracy on-chip oscillator | +/-1.0% frequency accuracy over –20°C to +85°C - eliminates external crystal for cost-sensitive applications requiring <1% timing precision |
| Integrated safety functions | CRC calculation unit, RAM guard, and SFR guard - detect memory corruption and prevent unintended register writes in safety-critical firmware |
| Dual simplified I²C interfaces | IIC00 and IIC01 channels support independent I²C buses - enables concurrent communication with multiple sensors or displays without software arbitration |
| 18-pin I/O with 6 V tolerance | 2× N-ch open-drain I/O pins rated to 6 V - directly interface with 5 V logic, legacy peripherals, or industrial sensors without level shifters |
Applications
| Smart Appliance Control | Industrial Sensor Node |
|---|---|
|
Use Scenario: Microcontroller in washing machine main control board managing motor drive, water valve actuation, and user interface. IC Role / Device Role / Timing Role: Primary system controller executing real-time motor commutation, ADC-based load sensing, and buzzer feedback via PCLBUZ0. Use Value: 12 KB flash stores complex wash cycle algorithms; 2 KB data flash logs fault codes across power cycles; 10-bit ADC resolves water level and temperature with ±1°C accuracy. |
Use Scenario: Battery-powered environmental monitor deployed in factory HVAC ducts measuring temperature, humidity, and air quality. IC Role / Device Role / Timing Role: Low-power data acquisition node using STOP mode between 10-second sensor reads, waking via INTP0 on motion detection. Use Value: 63 μA/MHz active current and 0.52 μA STOP mode enable >2-year battery life; integrated temperature sensor and 11-channel ADC eliminate external analog front-end components. |
| Consumer Remote Control Hub | LED Lighting Controller |
|
Use Scenario: IR-to-BLE bridge in universal remote that learns and transmits commands to TVs, soundbars, and streaming boxes. IC Role / Device Role / Timing Role: Protocol translator handling IR demodulation (via TI00 capture), command parsing, and BLE packet formatting (via UART0). Use Value: Dual CSI/I²C interfaces connect to IR receiver and BLE module simultaneously; 768 B RAM buffers multi-protocol command sequences; 18 I/O pins support LED indicators and button matrix. |
Use Scenario: Dimmable LED driver in commercial downlight fixture with DALI and 0–10 V analog dimming inputs. IC Role / Device Role / Timing Role: Analog-digital hybrid controller reading 0–10 V input (P20/P21), generating PWM (TO00/TO01), and communicating via DALI (UART0). Use Value: 4-channel TAU timer delivers precise 1–10 kHz PWM for flicker-free dimming; 6 V-tolerant P60/P61 interface directly with 10 V DALI bus; 12 KB flash hosts DALI stack and calibration tables. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10268ASP#X0 | 8 KB code flash, 2 KB data flash, 512 B RAM - smaller memory footprint, identical peripheral set and pinout | Suitable for simpler firmware (e.g., basic thermostat control) where 12 KB flash is unnecessary | Select when application code size fits within 8 KB and cost reduction is prioritized over future firmware expansion headroom |
| R5F10369ASP#X0 | No data flash, reduced oscillator accuracy (±5%), no DMA or CRC - lower-cost variant without non-volatile parameter storage | Applicable in disposable or short-lifecycle products where field-updatable parameters are not required | Choose when data logging, secure firmware updates, or high-precision timing are not needed - reduces BOM cost by ~12% |
Compared with R5F10269ASP#X0, R5F10268ASP#X0 offers identical functionality at reduced memory capacity for cost-sensitive volume production, while R5F10369ASP#X0 removes data flash and safety features to target price-driven applications lacking long-term parameter retention needs.
Availability
R5F10269ASP#X0 is available at Aetrix Electronics and suitable for smart appliance control, industrial sensor nodes, consumer remote hubs, and LED lighting controllers requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for R5F10269ASP#X0 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, specializing in 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 general-purpose embedded control - balancing performance, energy efficiency, and integration for appliances, sensors, and human-interface devices.
FAQ
What is the maximum operating frequency and associated power consumption of the R5F10269ASP#X0?
The R5F10269ASP#X0 achieves 31 DMIPS at 24 MHz using its high-speed on-chip oscillator, with active current consumption of 63 μA/MHz. At full 24 MHz operation, typical supply current is 1.51 mA (VDD = 3.3 V, TA = 25°C). This enables responsive real-time control while maintaining ultra-low power - critical for battery-operated R5F10269ASP#X0 deployments.
Does the R5F10269ASP#X0 support self-programming of its code flash memory?
Yes, the R5F10269ASP#X0 supports self-programming of code flash memory using the RL78 Family Flash Self Programming Library Type01. This capability allows in-field firmware updates without external programmers. The R5F10269ASP#X0 implements flash shield window protection to prevent unauthorized access during reprogramming operations.
How many I²C interfaces does the R5F10269ASP#X0 provide, and what are their voltage tolerances?
The R5F10269ASP#X0 provides two independent simplified I²C interfaces: IIC00 (on P60/P61) and IIC01 (on P41/P42). Both support standard-mode (100 kbps) and fast-mode (400 kbps) operation. P60 and P61 are 6 V-tolerant open-drain pins, enabling direct connection to 5 V I²C buses without level shifters - a key advantage for R5F10269ASP#X0 in mixed-voltage systems.
What is the purpose of the REGC pin, and is it present on the R5F10269ASP#X0?
The REGC pin is used to stabilize the internal voltage regulator and is required only on 30-pin RL78/G12 variants (e.g., R5F102AAASP#X0). The R5F10269ASP#X0 is a 20-pin LSSOP device and does not include the REGC pin - eliminating the need for an external 0.47–1 µF capacitor and simplifying layout for compact R5F10269ASP#X0 designs.
Can the R5F10269ASP#X0 operate reliably at 1.8 V supply voltage with all peripherals enabled?
Yes, the R5F10269ASP#X0 is fully specified for 1.8–5.5 V operation across its entire temperature range (–40°C to +85°C). At 1.8 V, the high-speed on-chip oscillator supports up to 8 MHz operation, and all peripherals - including 10-bit ADC, UART, CSI, and I²C - remain functional. This makes the R5F10269ASP#X0 ideal for single-cell lithium or alkaline battery-powered applications.
R5F10269ASP#X0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 20-LSSOP (0.173", 4.40mm Width)
- Series:
- RL78/G12
- Packaging:
- Bulk
- 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#X0 FAQ
1.How can I place an order for R5F10269ASP#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10269ASP#X0 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#X0 reliable?
The price and inventory of R5F10269ASP#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10269ASP#X0 is usually 5 days.
3.What payment methods are accepted for R5F10269ASP#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10269ASP#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10269ASP#X0?
R5F10269ASP#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10269ASP#X0 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#X0?
For technical support, including R5F10269ASP#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10269ASP#X0 requirements.
6.How does Aetrix verify that R5F10269ASP#X0 is sourced from the original manufacturer or authorized distributors?
All R5F10269ASP#X0 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#X0 meets industry standards.
7.What is the process for return or replacement of R5F10269ASP#X0?
All R5F10269ASP#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10269ASP#X0, 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#X0 part is unused and in its original packaging.
Return procedure for R5F10269ASP#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F10269ASP#X0 Tags
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