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Renesas R5F10268ASP#X0
- Part No.:
- R5F10268ASP#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 20-LSSOP (0.173", 4.40mm Width)
- Datasheet:
-
R5F10268ASP#X0.pdf
- Description:
- IC MCU 16BIT 8KB FLASH 20LSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,097
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Product details
Overview
R5F10268ASP#X0 from Renesas Electronics is a 20-pin LSSOP ultra-low-power 16-bit RL78/G12 microcontroller with 8 KB code flash, 2 KB data flash, 512 B RAM, and 18 I/O pins. It operates from 1.8 V to 5.5 V, delivers 31 DMIPS at 24 MHz, and supports HALT/STOP/SNOOZE modes for battery-powered sensor nodes and industrial control interfaces.
For engineers reviewing the R5F10268ASP#X0 datasheet, R5F10268ASP#X0 pinout, R5F10268ASP#X0 application, or R5F10268ASP#X0 equivalent, key selection criteria include its integrated 2 KB data flash with 1M rewrite cycles, 10-bit 11-channel ADC, dual CSI/I²C serial interfaces, DMA controller, and industrial-grade temperature range (–40°C to +85°C).
Technical Context
The R5F10268ASP#X0 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. Its memory subsystem includes separate code flash (8 KB), data flash (2 KB), and RAM (512 B), all accessible within a 1 MB address space.
Peripheral integration includes a 16-bit timer array (TAU0) with 4 channels, 12-bit interval timer, window watchdog timer, UART0, two CSI channels, two simplified I²C channels, and an 11-channel 10-bit A/D converter with internal 1.45 V reference and temperature sensor - all supported by on-chip CRC, RAM guard, and SFR guard for functional safety compliance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline, 1 MB address space, 31 DMIPS @ 24 MHz |
| Memory | 8 KB code flash (1 KB blocks), 2 KB data flash (1M rewrites), 512 B RAM |
| Operating Voltage | 1.8 V to 5.5 V - enables direct interface with 1.8/2.5/3.3 V logic without level shifters |
| Power Modes | HALT (63 μA/MHz), STOP (0.52 μA), SNOOZE (fast wake-up with peripheral operation) |
| ADC | 10-bit resolution, 11 input channels, internal 1.45 V reference, integrated temperature sensor |
| Serial Interfaces | UART0 (1 ch), CSI00/CSI01 (2 ch), IIC00/IIC01 (2 ch), IICA0 (1 ch) |
| Timers & PWM | TAU0 16-bit timer (4 ch), 12-bit interval timer, watchdog timer, 3 PWM outputs |
| Package & Pins | LSSOP-20 (7.62 mm × 4.4 mm, 0.65 mm pitch), 18 GPIO including 2× 6 V-tolerant N-ch open-drain |
Pinout & Package
Package: 20-pin plastic LSSOP (PLSP0020JB-A), 4.4 mm × 6.5 mm, 0.65 mm pitch, exposed pad not present.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/ANI16/PCLBUZ0/SCK00/SCL00 | Port 1 bit 0 / Analog Input 16 / Programmable Clock / CSI00 Clock / I²C00 Clock | Multi-function pin supporting clock output, SPI/I²C master clock, or analog sensing - configurable 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 data path for debug communication, UART, and I²C - enables single-wire tool interface during development |
| P12/ANI18/SO00/TxD0/TOOLTxD | Port 1 bit 2 / Analog Input 18 / CSI00 Data Out / UART0 TX / I²C00 Data / Debug TX | Combines UART transmit, SPI output, and debug output - reduces external component count in compact designs |
| 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 - supports precise pulse-width measurement or generation |
| P14/ANI20/TI01/TO01/INTP3 | Port 1 bit 4 / Analog Input 20 / Timer Input 1 / Timer Output 1 / Interrupt 3 | Dedicated timer I/O pair for independent timing functions - enables dual-edge triggered event counting |
| P20/ANI0/AVREFP | Port 2 bit 0 / Analog Input 0 / Positive Analog Reference | Primary analog reference input - must be decoupled with 0.1 µF capacitor for stable ADC performance |
| P21/ANI1/AVREFM | Port 2 bit 1 / Analog Input 1 / Negative Analog Reference | Differential analog reference pair - enables ratiometric measurements and noise rejection in sensor front-ends |
| P22/ANI2 | Port 2 bit 2 / Analog Input 2 | General-purpose analog input - supports internal temperature sensor readout when configured as ANI2 |
| P23/ANI3 | Port 2 bit 3 / Analog Input 3 | Additional analog input - usable for multi-sensor monitoring or voltage monitoring across power rails |
| P40/KR0/TOOL0 | Port 4 bit 0 / Key Return 0 / Debug Interface | Key scan input and debug communication line - supports low-pin-count touch interface and in-circuit debugging |
| 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-density multi-function pin - enables simultaneous I²C slave operation, timer-based PWM, and analog sensing |
| P42/ANI21/SCK01/SCL01/TI03/TO03 | Port 4 bit 2 / Analog Input 21 / CSI01 Clock / I²C01 Clock / Timer Input 3 / Timer Output 3 | Secondary serial clock and timer I/O - supports dual independent SPI/I²C peripherals with hardware timing control |
| P60/KR4/SCLA0/(TxD0) | Port 6 bit 0 / Key Return 4 / I²C Addressable Clock / UART0 TX (remapped) | I²C bus clock with 6 V tolerance - allows direct connection to 5 V I²C slaves without level translation |
| P61/KR5/SDAA0/(RxD0) | Port 6 bit 1 / Key Return 5 / I²C Addressable Data / UART0 RX (remapped) | I²C bus data with 6 V tolerance - supports mixed-voltage I²C systems and robust key-scan matrix design |
| P121/KR3/X1/(TI03)/(INTP3) | Port 12 bit 1 / Key Return 3 / Crystal Oscillator Input / Timer Input 3 / Interrupt 3 | Primary crystal oscillator input - requires external 1–20 MHz resonator and load capacitors for precision timing |
| P122/KR2/X2/EXCLK/(TI02)/(INTP2) | Port 12 bit 2 / Key Return 2 / Crystal Oscillator Output / External Clock Input / Timer Input 2 / Interrupt 2 | Crystal oscillator output or external clock input - enables bypass mode for system clock synchronization |
| P125/KR1/SI01/RESET | Port 12 bit 5 / Key Return 1 / CSI01 Data In / Reset Input | Active-low reset input with internal pull-up - supports both hardware reset and SPI data input on same pin |
| P137/INTP0 | Port 13 bit 7 / Interrupt 0 | Dedicated external interrupt pin - provides lowest-latency response to critical events like fault detection |
| VDD | Power Supply | Single 1.8–5.5 V supply - powers entire core, peripherals, and I/O; requires local 0.1 µF + 4.7 µF decoupling |
| VSS | Ground | Digital ground reference - must be connected to PCB ground plane with low-inductance path |
Key Features
| Feature | Design Value |
|---|---|
| True low-power platform | 63 μA/MHz active current enables >10-year battery life in coin-cell-powered IoT endpoints |
| Integrated 2 KB data flash | 1,000,000 write cycles with background operation - stores calibration data or firmware updates without halting execution |
| On-chip safety functions | CRC engine, RAM guard, and SFR guard support IEC 61508 SIL2 diagnostics in industrial control applications |
| Multi-voltage I/O | 18 GPIO with 1.8/2.5/3.3 V compatibility and 2× 6 V-tolerant pins - eliminates external level shifters in mixed-voltage systems |
| Hardware-accelerated peripherals | DMA controller (2 ch), multiplier/divider, and BCD correction reduce CPU load for sensor fusion and display driving |
| Configurable serial interfaces | UART0 + dual CSI + dual simplified I²C - supports concurrent communication with UART sensors, SPI displays, and I²C EEPROMs |
Applications
| Smart Home Sensor Node | Industrial Motor Control Interface |
|---|---|
Use Scenario: Battery-powered temperature/humidity/light sensor with BLE gateway interface. IC Role / Device Role / Timing Role: Main system controller managing sensor acquisition, data logging to data flash, and UART-to-BLE bridge protocol. Use Value: 63 μA/MHz operation extends CR2032 battery life beyond 5 years; 11-channel ADC reads multiple analog sensors simultaneously. | Use Scenario: Compact motor driver board with overcurrent protection, speed feedback, and status reporting. IC Role / Device Role / Timing Role: Real-time motor control supervisor handling PWM generation, fault detection via analog inputs, and UART-based diagnostics. Use Value: TAU0 16-bit timers deliver precise 100 ns PWM resolution; 2 KB data flash stores motor calibration coefficients and runtime logs. |
| Medical Wearable Monitor | Building Automation Controller |
Use Scenario: Portable pulse oximeter with optical sensor interface and OLED display driver. IC Role / Device Role / Timing Role: Signal processor acquiring photodiode data via ADC, computing SpO₂, and driving display via CSI interface. Use Value: Integrated temperature sensor enables ambient compensation; 31 DMIPS at 24 MHz supports real-time signal processing algorithms. | Use Scenario: HVAC zone controller reading thermostats, controlling relays, and communicating via RS-485 network. IC Role / Device Role / Timing Role: Fieldbus interface controller managing Modbus RTU over UART, analog sensor conditioning, and relay timing. Use Value: 6 V-tolerant P60/P61 pins directly interface with 5 V RS-485 transceivers; SFR guard ensures reliable operation under EMI stress. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10269ASP#X0 | Same package and pinout; 12 KB code flash, 2 KB data flash, 768 B RAM | Higher memory capacity supports larger firmware images and more complex protocols | Select when firmware size exceeds 8 KB or additional RAM is required for buffer-intensive tasks |
| R5F10267ASP#X0 | Same package and pinout; 2 KB code flash, 2 KB data flash, 256 B RAM | Reduced code memory limits application complexity but maintains full peripheral set | Select for cost-sensitive, minimal-footprint designs where firmware fits in 2 KB and no external memory is used |
Compared with R5F10269ASP#X0 and R5F10267ASP#X0, the R5F10268ASP#X0 offers optimal balance of memory (8 KB flash/512 B RAM), power efficiency, and peripheral integration for mid-complexity embedded control - avoiding over-provisioning while ensuring headroom for field upgrades.
Availability
R5F10268ASP#X0 is available at Aetrix Electronics and suitable for smart home sensor nodes, industrial motor control interfaces, medical wearable monitors, and building automation controllers requiring stable component supply and long-term manufacturability.
Supply support for R5F10268ASP#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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power devices for automotive, industrial, and IoT markets.
The RL78/G12 product line delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive, battery-operated, and industrial control applications - combining energy efficiency, integrated peripherals, and functional safety features.
FAQ
What is the maximum operating frequency and corresponding DMIPS rating for the R5F10268ASP#X0?
The R5F10268ASP#X0 achieves a maximum operating frequency of 24 MHz using its high-accuracy on-chip oscillator, delivering 31 DMIPS performance. This is measured under HS (high-speed main) mode with VDD ≥ 2.7 V. The CPU core executes instructions in as little as 0.04167 µs per cycle at this speed, enabling real-time responsiveness in sensor and control applications.
Does the R5F10268ASP#X0 include data flash memory, and what are its endurance specifications?
Yes, the R5F10268ASP#X0 integrates 2 KB of data flash memory with a rated endurance of 1,000,000 write/erase cycles (typical). It supports background operation (BGO), allowing program execution from code flash while rewriting data flash - essential for storing calibration data, configuration parameters, or firmware update staging without system interruption.
What serial communication interfaces are available on the R5F10268ASP#X0, and how many channels does each support?
The R5F10268ASP#X0 provides UART0 (1 channel), CSI00 and CSI01 (2 simplified SPI channels), and IIC00 and IIC01 (2 simplified I²C channels), plus IICA0 (1 full I²C addressable interface). All serial peripherals operate independently and can be used concurrently - for example, UART for host communication, CSI for display, and I²C for sensor interfacing - without resource contention.
How many analog input channels and what ADC resolution does the R5F10268ASP#X0 support?
The R5F10268ASP#X0 features an 11-channel, 10-bit successive approximation register (SAR) ADC with selectable resolution (8/10-bit). It includes internal reference voltage (1.45 V), AVREFP/AVREFM differential reference inputs, and an integrated temperature sensor - enabling accurate analog measurements across industrial and environmental monitoring applications.
What power-saving modes are implemented in the R5F10268ASP#X0, and what are their typical current draws?
The R5F10268ASP#X0 supports HALT mode (63 μA/MHz), STOP mode (0.52 μA), and SNOOZE mode (low-power peripheral operation with fast wake-up). These modes enable aggressive power management: STOP mode maintains RAM retention and RTC operation while minimizing leakage, making it ideal for periodic wake-up sensor sampling in battery-powered devices.
R5F10268ASP#X0 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:
- 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:
- 8KB (8K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 2K x 8
- RAM Size:
- 768 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:
R5F10268ASP#X0 FAQ
1.How can I place an order for R5F10268ASP#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10268ASP#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 R5F10268ASP#X0 reliable?
The price and inventory of R5F10268ASP#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10268ASP#X0 is usually 5 days.
3.What payment methods are accepted for R5F10268ASP#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10268ASP#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10268ASP#X0?
R5F10268ASP#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10268ASP#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 R5F10268ASP#X0?
For technical support, including R5F10268ASP#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10268ASP#X0 requirements.
6.How does Aetrix verify that R5F10268ASP#X0 is sourced from the original manufacturer or authorized distributors?
All R5F10268ASP#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 R5F10268ASP#X0 meets industry standards.
7.What is the process for return or replacement of R5F10268ASP#X0?
All R5F10268ASP#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10268ASP#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 R5F10268ASP#X0 part is unused and in its original packaging.
Return procedure for R5F10268ASP#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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