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Renesas R5F10268ASP#X5
- Part No.:
- R5F10268ASP#X5
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 20-LSSOP (0.173", 4.40mm Width)
- Datasheet:
-
R5F10268ASP#X5.pdf
- Description:
- IC MCU 16BIT 8KB FLASH 20LSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,281
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Product details
Overview
R5F10268ASP#X5 from Renesas is a 20-pin LSSOP ultra-low-power 16-bit RL78/G12 MCU with 8 KB code flash, 2 KB data flash, 512 B RAM, and 18 I/O pins-designed for battery-powered consumer electronics operating from 1.8 V to 5.5 V at –40°C to +85°C. It integrates an 8/10-bit 11-channel ADC, dual CSI/I²C serial interfaces, UART, 4-channel 16-bit TAU timer, and on-chip CRC for firmware integrity in smart home sensors and portable medical devices.
For engineers reviewing the R5F10268ASP#X5 datasheet, R5F10268ASP#X5 pinout, R5F10268ASP#X5 application, or R5F10268ASP#X5 equivalent, this page delivers verified electrical specs, package dimensions, peripheral mapping, real-world use cases, and validated alternative parts-all aligned to Renesas' R01DS0193EJ0250 Rev.2.50 specification.
Technical Context
The R5F10268ASP#X5 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.04167 µs (24 MHz high-speed on-chip oscillator) to 1 µs (1 MHz low-speed mode). Its memory subsystem includes 8 KB code flash (1 KB block size), 2 KB data flash with background operation (BGO) and 1M rewrite cycles, and 512 B RAM-enabling secure self-programming and real-time data logging without CPU suspension.
Peripherals are optimized for mixed-signal control: dual CSI channels support SPI-like communication with slave select flexibility; two simplified I²C interfaces operate at up to 400 kHz; UART0 provides full-duplex asynchronous communication; and the 11-channel ADC features internal 1.45 V reference and temperature sensor-enabling precise analog sensing in compact embedded systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline, 1 MB address space |
| Operating Voltage | 1.8 V to 5.5 V-supports direct Li-ion, coin-cell, or regulated 3.3 V supply without external level shifters |
| Flash Memory | 8 KB code flash + 2 KB data flash-enables firmware updates and nonvolatile parameter storage in same chip |
| ADC Resolution | 8/10-bit, 11-channel with internal 1.45 V reference and temperature sensor-reduces BOM cost for thermal monitoring |
| Serial Interfaces | 2 × CSI (SPI-compatible), 2 × simplified I²C, 1 × UART-supports multi-sensor connectivity with minimal GPIO usage |
| Power Modes | HALT, STOP, SNOOZE-achieves 63 μA/MHz active current and sub-μA deep sleep for >1-year battery life |
| Package & Pins | LSSOP-20 (4.4 × 6.5 mm, 0.65 mm pitch), 18 usable I/O including 2× 6-V-tolerant N-ch open-drain ports |
Pinout & Package
Package: 20-pin plastic LSSOP (4.4 × 6.5 mm, 0.65-mm pitch), JEDEC standard PLSP0020JB-A footprint, RoHS-compliant, tape-and-reel (#X5).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/ANI16/PCLBUZ0/SCK00/SCL00 | Port 1 bit 0 / Analog input 16 / Programmable clock/buzzer output / CSI00 clock / I²C00 clock | Multi-function pin enabling shared use across timing, sensing, and serial communication-configured via PIOR register |
| P11/ANI17/SI00/RxD0/SDA00/TOOLRxD | Port 1 bit 1 / Analog input 17 / CSI00 data in / UART0 receive / I²C00 data / debug receive | Combines analog sensing, serial input, and debug interface-eliminates need for external multiplexer in space-constrained designs |
| P12/ANI18/SO00/TxD0/TOOLTxD | Port 1 bit 2 / Analog input 18 / CSI00 data out / UART0 transmit / I²C00 data / debug transmit | Enables full-duplex UART+CSI+I²C on same port pair-reduces PCB routing complexity and layer count |
| P13/ANI19/TI00/TO00/INTP2 | Port 1 bit 3 / Analog input 19 / Timer input 0 / Timer output 0 / External interrupt 2 | Supports edge-triggered capture, PWM generation, and interrupt-driven wake-up from STOP mode |
| P14/ANI20/TI01/TO01/INTP3 | Port 1 bit 4 / Analog input 20 / Timer input 1 / Timer output 1 / External interrupt 3 | Dual timer I/O capability enables quadrature decoding or dual-phase PWM control for motor drive applications |
| P20/ANI0/AVREFP | Port 2 bit 0 / Analog input 0 / ADC positive reference voltage | Provides dedicated AVREFP input-ensures stable ADC reference independent of VDD fluctuations |
| P21/ANI1/AVREFM | Port 2 bit 1 / Analog input 1 / ADC negative reference voltage | Enables true differential ADC measurements with programmable gain amplifier configurations |
| P22/ANI2 | Port 2 bit 2 / Analog input 2 | General-purpose analog input compatible with internal temperature sensor and 1.45 V reference |
| P23/ANI3 | Port 2 bit 3 / Analog input 3 | Additional analog channel for multi-sensor fusion (e.g., ambient light + temperature + humidity) |
| P40/KR0/TOOL0 | Port 4 bit 0 / Key return 0 / Debug interface I/O | Supports key matrix scanning and on-chip debug communication-reduces need for separate debug header |
| 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 peripheral integration allows simultaneous analog acquisition, serial comms, and timer-based 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 synchronized sampling across multiple analog channels using timer-triggered ADC start |
| P60/KR4/SCLA0/(TxD0) | Port 6 bit 0 / Key return 4 / I²C00 clock / UART0 transmit (remappable) | 6-V-tolerant I²C clock pin-allows direct connection to 5 V I²C buses without level translators |
| P61/KR5/SDAA0/(RxD0) | Port 6 bit 1 / Key return 5 / I²C00 data / UART0 receive (remappable) | 6-V-tolerant I²C data pin-supports mixed-voltage system interfacing and robust noise immunity |
| P121/KR3/X1/(TI03)/(INTP3) | Port 12 bit 1 / Key return 3 / Crystal oscillator input / Timer input 3 / Interrupt 3 | Configurable as crystal input or timer input-enables flexible clock source selection or external event counting |
| P122/KR2/X2/EXCLK/(TI02)/(INTP2) | Port 12 bit 2 / Key return 2 / Crystal oscillator output / External clock input / Timer input 2 / Interrupt 2 | Supports crystal, ceramic resonator, or external clock source-provides design flexibility for timing accuracy vs. cost trade-offs |
| P125/KR1/SI01/RESET | Port 12 bit 5 / Key return 1 / CSI01 data in / Reset input | Active-low reset pin with internal pull-up-enables reliable power-on reset and external system reset coordination |
| P137/INTP0 | Port 13 bit 7 / External interrupt 0 | Dedicated interrupt pin with configurable edge sensitivity-ideal for wake-up from ultra-low-power STOP mode |
| VDD | Power supply | Single 1.8–5.5 V supply-eliminates need for external regulators in multi-rail systems |
| VSS | Ground | Dedicated analog/digital ground pin-minimizes noise coupling between ADC and digital logic |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power HALT/STOP/SNOOZE modes | 63 μA/MHz active current and sub-μA deep sleep-extends battery life in portable sensors and wearables |
| On-chip 2 KB data flash with BGO | Enables concurrent program execution and data logging-no CPU stall during firmware parameter updates |
| 11-channel 8/10-bit ADC with internal reference | Reduces external component count by integrating precision reference and temperature sensor for calibration-free sensing |
| Dual CSI + dual simplified I²C interfaces | Supports up to four independent serial peripherals on 10 pins-ideal for multi-sensor node consolidation |
| On-chip CRC and RAM/SFR guard | Prevents runtime corruption of critical memory regions-enhances reliability in safety-aware consumer applications |
| 20-pin LSSOP with 6-V-tolerant I²C pins | Enables direct interfacing with legacy 5 V I²C peripherals-avoids level-shifter ICs and associated layout complexity |
Applications
| Smart Home Sensor Node | Portable Medical Monitor |
|---|---|
Use Scenario: Battery-powered temperature/humidity/light sensor transmitting data via I²C to MCU gateway. IC Role / Device Role / Timing Role: Primary controller managing analog acquisition, sensor fusion, and I²C bus arbitration. Use Value: Integrated 11-channel ADC with internal reference eliminates external op-amps and voltage references; dual I²C interfaces allow daisy-chaining multiple sensors without GPIO expansion. | Use Scenario: Wearable pulse oximeter acquiring analog photodiode signals and driving LED drivers. IC Role / Device Role / Timing Role: Signal acquisition MCU synchronizing ADC sampling with LED pulsing via timer-triggered conversion. Use Value: TI00/TO00 and TI01/TO01 pins enable precise PWM timing for LED control; 8/10-bit ADC resolution supports clinical-grade SpO₂ calculation accuracy. |
| Industrial Control Panel | Energy-Efficient Appliance Controller |
Use Scenario: Front-panel interface with keypad, buzzer feedback, and status LEDs in HVAC control unit. IC Role / Device Role / Timing Role: Human interface processor handling key scan, buzzer tone generation, and LED PWM dimming. Use Value: PCLBUZ0 output and integrated buzzer/clock controller generate audible alerts without external driver; KR0–KR5 key return inputs reduce external diode matrix complexity. | Use Scenario: Smart washing machine mainboard managing motor control, water level sensing, and display backlight. IC Role / Device Role / Timing Role: System supervisor coordinating motor driver enable signals, ADC-based pressure sensing, and display timing. Use Value: 4-channel 16-bit TAU timer generates precise PWM for BLDC motor commutation; 2 KB data flash stores calibration coefficients across power cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10269ASP#X5 | Same package and pinout; 12 KB code flash, 2 KB data flash, 768 B RAM-higher memory capacity | Suitable for applications requiring larger firmware image or more complex protocol stacks (e.g., BLE host stack) | Select when firmware size exceeds 8 KB or additional RAM is needed for buffer-intensive tasks |
| R5F10267ASP#X5 | Same package and pinout; 2 KB code flash, 2 KB data flash, 256 B RAM-lower memory configuration | Ideal for cost-sensitive, function-limited devices like simple timers or basic sensor nodes | Choose for minimal-feature implementations where 8 KB flash is excessive and BOM cost is critical |
Compared with R5F10269ASP#X5 and R5F10267ASP#X5, the R5F10268ASP#X5 delivers optimal balance of memory (8 KB flash/512 B RAM), peripheral count, and power efficiency-making it the preferred choice for mid-complexity consumer IoT endpoints where firmware growth headroom and resource constraints must both be managed.
Availability
R5F10268ASP#X5 is available at Aetrix Electronics and suitable for smart home sensors, portable medical monitors, and industrial HMI panels requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for R5F10268ASP#X5 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 is a global semiconductor leader specializing in microcontrollers, analog, and power solutions for automotive, industrial, and IoT markets.
The RL78/G12 product line delivers ultra-low-power 16-bit MCUs targeting cost-sensitive, battery-operated consumer and industrial applications-emphasizing energy efficiency, integrated analog peripherals, and secure firmware update capability.
FAQ
What is the maximum operating frequency and corresponding instruction execution time for the R5F10268ASP#X5?
The R5F10268ASP#X5 supports a maximum high-speed on-chip oscillator frequency of 24 MHz, achieving a minimum instruction execution time of 0.04167 µs. This timing is confirmed in the RL78/G12 datasheet R01DS0193EJ0250 Rev.2.50 Section 1.1. When using the external crystal oscillator, the maximum frequency is 20 MHz with 0.05 µs instruction time. The R5F10268ASP#X5 maintains full functionality across its 1.8–5.5 V supply range at these speeds.
Does the R5F10268ASP#X5 include data flash memory, and what are its key characteristics?
Yes, the R5F10268ASP#X5 includes 2 KB of on-chip data flash memory, as specified in Renesas' R01DS0193EJ0250 Rev.2.50 Section 1.1. It supports background operation (BGO), allowing program execution while rewriting data flash; offers 1,000,000 typical rewrite cycles; and operates across the full 1.8–5.5 V supply range. This capability is exclusive to R5F102x series parts and not available in R5F103x variants.
What serial communication interfaces are available on the R5F10268ASP#X5, and how many channels does each support?
The R5F10268ASP#X5 provides two simplified SPI (CSI) channels, two simplified I²C channels, and one UART channel, per Section 1.7 of R01DS0193EJ0250 Rev.2.50. All interfaces are accessible on the 20-pin LSSOP package via remappable pins. Unlike R5F1036x parts, the R5F10268ASP#X5 retains DMA and CRC functions-enabling efficient data transfer and firmware integrity checking during serial transactions.
What is the ADC configuration of the R5F10268ASP#X5, and does it include a temperature sensor?
The R5F10268ASP#X5 features an 8/10-bit resolution A/D converter with 11 input channels (ANI0–ANI3, ANI16–ANI22), internal 1.45 V reference voltage, and an integrated temperature sensor, as documented in Section 1.1 of R01DS0193EJ0250 Rev.2.50. The temperature sensor is factory-calibrated and accessible via dedicated ADC channel-enabling accurate thermal monitoring without external components.
What power supply voltage range and operating temperature grade does the R5F10268ASP#X5 support?
The R5F10268ASP#X5 operates from 1.8 V to 5.5 V and is rated for –40°C to +85°C ambient temperature, corresponding to the "A" (consumer applications) field of use per Figure 1-1 in R01DS0193EJ0250 Rev.2.50. It includes on-chip POR and voltage detector with 12 selectable detection levels-ensuring reliable startup and brown-out protection across its full voltage range.
R5F10268ASP#X5 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#X5 FAQ
1.How can I place an order for R5F10268ASP#X5 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10268ASP#X5 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#X5 reliable?
The price and inventory of R5F10268ASP#X5 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10268ASP#X5 is usually 5 days.
3.What payment methods are accepted for R5F10268ASP#X5?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10268ASP#X5 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10268ASP#X5?
R5F10268ASP#X5 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10268ASP#X5 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#X5?
For technical support, including R5F10268ASP#X5 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10268ASP#X5 requirements.
6.How does Aetrix verify that R5F10268ASP#X5 is sourced from the original manufacturer or authorized distributors?
All R5F10268ASP#X5 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#X5 meets industry standards.
7.What is the process for return or replacement of R5F10268ASP#X5?
All R5F10268ASP#X5 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10268ASP#X5, 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#X5 part is unused and in its original packaging.
Return procedure for R5F10268ASP#X5:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F10268ASP#X5 Tags
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