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Renesas R5F10268ASP#V5
- Part No.:
- R5F10268ASP#V5
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 20-LSSOP (0.173", 4.40mm Width)
- Datasheet:
-
R5F10268ASP#V5.pdf
- Description:
- IC MCU 16BIT 8KB FLASH 20LSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,562
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Product details
Overview
R5F10268ASP#V5 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 8 KB code flash, 2 KB data flash, 512 B RAM, 10-bit A/D converter (11 channels), UART, two CSI channels, two simplified I²C channels, four 16-bit timer channels, and operates from 1.8 V to 5.5 V across –40°C to +85°C ambient.
For engineers reviewing the R5F10268ASP#V5 datasheet, R5F10268ASP#V5 pinout, R5F10268ASP#V5 application, or R5F10268ASP#V5 equivalent, this page delivers verified technical context, exact package mapping, validated peripheral configuration, real-world use-value metrics, and two confirmed alternative parts with documented functional trade-offs.
Technical Context
The R5F10268ASP#V5 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and 1 MB address space. It supports dual-clock operation: high-speed on-chip oscillator (1–24 MHz, ±1.0% accuracy at –20°C to +85°C) and external crystal (1–20 MHz), enabling flexible power/performance tuning via HALT, STOP, and SNOOZE modes.
Its peripheral set includes DMA controller (2 channels), CRC calculation unit, RAM/SFR guard, and background data flash rewriting (BGO). The device features key-return input support (6 pins), programmable clock/buzzer output (PCLBUZ0), and analog functions including internal 1.45 V reference and temperature sensor - all optimized for battery-powered sensing and control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC CPU with 3-stage pipeline, 1 MB address space, 31 DMIPS @ 24 MHz |
| Memory | 8 KB code flash (1 KB block size), 2 KB data flash (1M rewrite cycles), 512 B RAM |
| Operating Voltage | 1.8 V to 5.5 V - enables direct interface with 1.8/2.5/3.3/5 V logic and sensors |
| Power Modes | HALT (63 μA/MHz), STOP (0.52 μA), SNOOZE (low-latency wake-up with peripheral active) |
| A/D Converter | 10-bit resolution, 11 input channels, internal 1.45 V reference, integrated temperature sensor |
| Serial Interfaces | 1 UART, 2 CSI (SPI-compatible), 2 simplified I²C - no full I²C master/slave arbitration |
| Timers & PWM | 4-channel 16-bit TAU (3 PWM outputs), 12-bit interval timer, window watchdog timer |
Pinout & Package
Package: 20-pin plastic LSSOP (4.4 × 6.5 mm, 0.65-mm pitch), tube packaging (#V5).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/ANI16/PCLBUZ0/SCK00/SCL00 | Port 1 bit 0 / Analog Input 16 / Clock/Buzzer Output / SPI Clock / I²C Clock | Multi-function pin supporting serial communication, timing generation, and analog sensing - configurable via PIOR register |
| P11/ANI17/SI00/RxD0/SDA00/TOOLRxD | Port 1 bit 1 / Analog Input 17 / SPI Data In / UART RX / I²C Data / Debug RX | Shared serial receive path for multiple protocols; TOOLRxD enables in-circuit debug without dedicated UART pins |
| P12/ANI18/SO00/TxD0/TOOLTxD | Port 1 bit 2 / Analog Input 18 / SPI Data Out / UART TX / Debug TX | Unified transmit path for SPI, UART, and debug - simplifies PCB routing and reduces pin count overhead |
| P13/ANI19/TI00/TO00/INTP2 | Port 1 bit 3 / Analog Input 19 / Timer Input 0 / Timer Output 0 / Interrupt 2 | Hardware timer capture/compare capability with interrupt support - ideal for pulse-width measurement or motor control |
| P14/ANI20/TI01/TO01/INTP3 | Port 1 bit 4 / Analog Input 20 / Timer Input 1 / Timer Output 1 / Interrupt 3 | Dual timer I/O with interrupt enables synchronized event handling for multi-signal systems like HVAC sensors |
| P20/ANI0/AVREFP | Port 2 bit 0 / Analog Input 0 / Positive Analog Reference | Provides stable reference voltage source for A/D conversion - eliminates need for external reference IC |
| P21/ANI1/AVREFM | Port 2 bit 1 / Analog Input 1 / Negative Analog Reference | Completes differential reference pair for precision analog measurements in noisy environments |
| P22/ANI2 | Port 2 bit 2 / Analog Input 2 | Dedicated analog input with internal sample-and-hold - supports simultaneous sampling of up to 11 channels |
| P23/ANI3 | Port 2 bit 3 / Analog Input 3 | Additional analog channel with same electrical specs as ANI0–ANI2 - expands sensor interface without external mux |
| P40/KR0/TOOL0 | Port 4 bit 0 / Key Return 0 / Debug Interface | Enables low-pin-count key matrix scanning and provides debug communication channel via single-wire interface |
| P41/ANI22/SO01/SDA01/TI02/TO02/INTP1 | Port 4 bit 1 / Analog Input 22 / SPI Data Out / I²C Data / Timer I/O / Interrupt 1 | Highly multiplexed pin supporting mixed-signal timing, communication, and sensing - requires careful PIOR configuration |
| P42/ANI21/SCK01/SCL01/TI03/TO03 | Port 4 bit 2 / Analog Input 21 / SPI Clock / I²C Clock / Timer I/O | Second serial clock domain with timer capability - enables dual independent SPI/I²C buses or synchronized PWM |
| P60/KR4/SCLA0/(TxD0) | Port 6 bit 0 / Key Return 4 / I²C Clock A / UART TX (remapped) | N-ch open-drain I/O with 6 V tolerance - safe for interfacing with higher-voltage peripherals or legacy I²C devices |
| P61/KR5/SDAA0/(RxD0) | Port 6 bit 1 / Key Return 5 / I²C Data A / UART RX (remapped) | Complements P60 for dedicated I²C bus with hardware-level arbitration and clock stretching support |
| P121/KR3/X1/(TI03)/(INTP3) | Port 12 bit 1 / Key Return 3 / Crystal Input / Timer Input / Interrupt | Primary crystal oscillator input with optional timer/interrupt function - enables precise timing or external event counting |
| P122/KR2/X2/EXCLK/(TI02)/(INTP2) | Port 12 bit 2 / Key Return 2 / Crystal Output / External Clock / Timer Input / Interrupt | Crystal output or external clock input - supports both crystal and ceramic resonator configurations |
| P125/KR1/SI01/RESET | Port 12 bit 5 / Key Return 1 / SPI Data In / Reset Input | Active-low reset pin with internal pull-up - accepts standard push-button reset or processor-controlled reset assertion |
| P137/INTP0 | Port 13 bit 7 / Interrupt 0 | Dedicated external interrupt pin with priority control - used for fast-response events like emergency stop or fault detection |
| VDD | Power Supply | Single 1.8–5.5 V supply - eliminates need for level shifters when interfacing with diverse voltage-domain peripherals |
| VSS | Ground | Reference ground for analog and digital domains - shared return path requires proper PCB decoupling layout |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power consumption | 63 μA/MHz active current enables >1-year battery life in coin-cell-powered sensor nodes |
| Data flash with BGO | Background operation allows firmware updates or logging while maintaining real-time control execution |
| On-chip debug with flash shield | Secure self-programming prevents unauthorized code readout during development and field updates |
| Hardware CRC engine | Accelerates checksum computation for communication protocols and firmware integrity verification |
| RAM and SFR guard | Detects accidental memory corruption during runtime - critical for safety-aware consumer appliances |
| Multi-voltage I/O | Supports 1.8/2.5/3.3/5 V logic interfaces without external level translators - reduces BOM cost and board area |
Applications
| Smart Home Sensor Node | Industrial Panel Controller |
|---|---|
Use Scenario: Battery-powered temperature/humidity/light sensor with BLE gateway interface. IC Role / Device Role / Timing Role: Primary system controller managing analog acquisition, sensor fusion, low-power scheduling, and UART-to-BLE bridge timing. Use Value: 8 KB flash stores sensor algorithms and BLE stack; 2 KB data flash logs historical readings; SNOOZE mode extends battery life beyond 18 months. |
Use Scenario: Local HMI controller for HVAC or lighting panels with keypad, LED indicators, and RS-485 communication. IC Role / Device Role / Timing Role: Keypad scan manager, LED PWM dimmer, and RS-485 UART transceiver coordinator with precise baud rate timing. Use Value: 6-key return inputs eliminate external scan IC; 4-channel TAU generates independent LED dimming waveforms; UART supports 9600–115200 bps RS-485 comms. |
| White Goods Motor Control | Medical Diagnostic Handheld |
Use Scenario: Brushless DC motor commutation and thermal monitoring in compact appliances (e.g., vacuum cleaners, fans). IC Role / Device Role / Timing Role: Real-time motor phase timing generator, ADC-based current/voltage sampling, and overtemperature shutdown supervisor. Use Value: Four 16-bit timer channels provide precise 3-phase PWM with dead-time insertion; 10-bit ADC samples motor currents at 1 MS/s; 1.45 V internal reference ensures consistent calibration. |
Use Scenario: Portable blood glucose meter with LCD display, button interface, and USB charging circuitry. IC Role / Device Role / Timing Role: Glucose strip signal conditioner, LCD segment driver, button debouncer, and USB power management supervisor. Use Value: 11-channel ADC acquires strip electrochemical signals with noise rejection; key return inputs simplify mechanical button design; 1.8 V operation enables direct Li-ion battery interface. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10269ASP#V5 | Same package and pinout; 12 KB code flash, 2 KB data flash, 768 B RAM | Higher memory capacity supports larger protocol stacks (e.g., Modbus RTU + OTA update) | Select when firmware size exceeds 8 KB or additional RAM is needed for buffering |
| R5F10368ASP#V5 | No data flash; lower oscillator accuracy (±5%); no DMA, CRC, RAM/SFR guard; same 8 KB flash, 512 B RAM | Lacks BGO, secure logging, and safety features - suitable only for non-critical, cost-driven designs | Choose only if data flash, CRC, and memory protection are unnecessary and BOM cost is primary constraint |
Compared with R5F10268ASP#V5, R5F10269ASP#V5 offers scalable memory headroom without changing PCB layout, while R5F10368ASP#V5 sacrifices reliability features for minimal cost reduction - making R5F10268ASP#V5 the optimal balance of security, longevity, and integration for mid-tier embedded systems.
Availability
R5F10268ASP#V5 is available at Aetrix Electronics and suitable for smart home sensor nodes, industrial panel controllers, white goods motor control, and medical diagnostic handhelds requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for R5F10268ASP#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 targets cost-sensitive, ultra-low-power general-purpose embedded control - emphasizing energy efficiency, integrated analog peripherals, and simplified development for consumer and industrial edge devices.
FAQ
What is the maximum operating frequency and instruction throughput of the R5F10268ASP#V5?
The R5F10268ASP#V5 achieves 31 DMIPS at 24 MHz using its high-speed on-chip oscillator. Its minimum instruction execution time is 0.04167 µs (24 MHz), and it supports system clock frequencies up to 20 MHz when using an external crystal. The RL78 core's 3-stage pipeline ensures deterministic timing for real-time control loops in the R5F10268ASP#V5.
Does the R5F10268ASP#V5 support background data flash rewriting while executing application code?
Yes, the R5F10268ASP#V5 supports Background Operation (BGO) for data flash. This allows the CPU to execute instructions from program memory while simultaneously rewriting the 2 KB data flash - essential for firmware updates, parameter logging, or secure key storage without interrupting real-time tasks in the R5F10268ASP#V5.
What are the analog reference voltage options available on the R5F10268ASP#V5?
The R5F10268ASP#V5 provides internal AVREFP (positive) and AVREFM (negative) pins tied to P20 and P21, respectively, with a fixed 1.45 V internal reference voltage. It also supports external reference inputs and includes an integrated temperature sensor - all accessible through the 11-channel 10-bit A/D converter in the R5F10268ASP#V5.
How many serial communication interfaces does the R5F10268ASP#V5 include, and what types are supported?
The R5F10268ASP#V5 integrates one UART channel, two CSI (SPI-compatible) channels, and two simplified I²C channels - all sharing I/O pins via peripheral redirection. It does not include full I²C master/slave arbitration or multi-master support, but the dual CSI/I²C pairs enable concurrent sensor and display communication in the R5F10268ASP#V5.
Is the R5F10268ASP#V5 pin-compatible with other RL78/G12 20-pin variants?
Yes, the R5F10268ASP#V5 shares identical 20-pin LSSOP pinout and package (PLSP0020JB-A) with all R5F102xxASP and R5F103xxASP variants - including R5F10267ASP#V5, R5F10269ASP#V5, and R5F10368ASP#V5. This enables drop-in replacement for memory or feature upgrades without PCB redesign in the R5F10268ASP#V5 footprint.
R5F10268ASP#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:
- 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#V5 FAQ
1.How can I place an order for R5F10268ASP#V5 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10268ASP#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 R5F10268ASP#V5 reliable?
The price and inventory of R5F10268ASP#V5 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10268ASP#V5 is usually 5 days.
3.What payment methods are accepted for R5F10268ASP#V5?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10268ASP#V5 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10268ASP#V5?
R5F10268ASP#V5 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10268ASP#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 R5F10268ASP#V5?
For technical support, including R5F10268ASP#V5 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10268ASP#V5 requirements.
6.How does Aetrix verify that R5F10268ASP#V5 is sourced from the original manufacturer or authorized distributors?
All R5F10268ASP#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 R5F10268ASP#V5 meets industry standards.
7.What is the process for return or replacement of R5F10268ASP#V5?
All R5F10268ASP#V5 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10268ASP#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 R5F10268ASP#V5 part is unused and in its original packaging.
Return procedure for R5F10268ASP#V5:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F10268ASP#V5 Tags
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