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Renesas R5F10268ASP#V0
- Part No.:
- R5F10268ASP#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 20-LSSOP (0.173", 4.40mm Width)
- Datasheet:
-
R5F10268ASP#V0.pdf
- Description:
- IC MCU 16BIT 8KB FLASH 20LSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,411
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Product details
Overview
R5F10268ASP#V0 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, and 512 B RAM, operating from 1.8 V to 5.5 V at up to 24 MHz (31 DMIPS), featuring integrated 10-bit ADC (11 channels), UART, CSI, I²C, and DMA - deployed in battery-powered sensor nodes and industrial control panels.
For engineers reviewing the R5F10268ASP#V0 datasheet, R5F10268ASP#V0 pinout, R5F10268ASP#V0 application, or R5F10268ASP#V0 equivalent, key selection criteria include its 2 KB on-chip data flash for firmware-over-the-air updates, 63 μA/MHz active power consumption, STOP/HALT/SNOOZE low-power modes, and support for 1.8 V–5.5 V single-supply operation in space-constrained embedded designs.
Technical Context
The R5F10268ASP#V0 implements the RL78 CPU core with 3-stage pipeline CISC architecture, 1 MB address space, and configurable instruction execution time (0.04167 μs @ 24 MHz). It integrates a high-accuracy ±1.0% high-speed on-chip oscillator (1–24 MHz) and a dedicated 15 kHz low-speed oscillator for watchdog and interval timing.
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), a 12-bit interval timer, and CRC hardware acceleration - all enabled under HS mode with full data flash background operation (BGO) support.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC CPU with 3-stage pipeline, 1 MB address space, 8-bit register banks × 4 |
| Flash Memory | 8 KB code flash + 2 KB data flash (1,000,000 rewrite cycles, BGO supported) |
| RAM Size | 512 B on-chip RAM (sufficient for real-time control stacks and small buffers) |
| Operating Voltage | 1.8 V to 5.5 V single supply - enables direct interface with 1.8/2.5/3.3/5 V peripherals without level shifters |
| Power Consumption | 63 μA/MHz active current; STOP mode: 0.52 μA typical (VDD = 3.0 V, TA = 25°C) |
| ADC | 10-bit resolution A/D converter with 11 input channels, internal 1.45 V reference, and temperature sensor |
| Timers & PWM | Four 16-bit timer channels (TAU0), supporting up to three independent PWM outputs per channel configuration |
Pinout & Package
LSSOP-20 package (7.62 mm × 4.4 mm, 0.65 mm pitch), 20-pin plastic leaded small outline package with exposed pad not applicable - compatible with standard SMT reflow profiles and IPC-7351B land pattern PLSP0020JB-A.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/ANI16/PCLBUZ0/SCK00/SCL00 | Port 1 bit 0 / Analog Input 16 / Programmable Clock/Buzzer Output / SPI Clock / I²C Clock | Multi-function pin supporting synchronous serial communication or precision clock generation |
| P11/ANI17/SI00/RxD0/SDA00/TOOLRxD | Port 1 bit 1 / Analog Input 17 / SPI Data In / UART Receive / I²C Data / Debug RX | Shared serial receive path for multiple protocols; TOOLRxD enables in-circuit debug without external adapter |
| P12/ANI18/SO00/TxD0/TOOLTxD | Port 1 bit 2 / Analog Input 18 / SPI Data Out / UART Transmit / 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 / External Interrupt 2 | Hardware timer capture/compare and interrupt trigger - supports encoder quadrature decoding or pulse-width measurement |
| 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 with interrupt capability - ideal for dual-edge timing or synchronized PWM generation |
| P20/ANI0/AVREFP | Port 2 bit 0 / Analog Input 0 / Positive Analog Reference | Reference voltage source for ADC measurements - eliminates need for external reference IC in cost-sensitive designs |
| P21/ANI1/AVREFM | Port 2 bit 1 / Analog Input 1 / Negative Analog Reference | Differential analog reference pair enabling ratiometric sensor readings and noise rejection |
| P22/ANI2 | Port 2 bit 2 / Analog Input 2 | Dedicated analog input with internal sampling capacitor - supports 10-bit conversion at up to 100 kSPS |
| P23/ANI3 | Port 2 bit 3 / Analog Input 3 | Additional analog channel for multi-sensor monitoring (e.g., temperature + voltage + current) |
| P40/KR0/TOOL0 | Port 4 bit 0 / Key Return 0 / Debug Interface I/O | Single-wire debug interface pin - enables programming and real-time trace without JTAG header footprint |
| P41/ANI22/SO01/SDA01/TI02/TO02/INTP1 | Port 4 bit 1 / Analog Input 22 / SPI Data Out / I²C Data / Timer I/O / Interrupt 1 | High-density multiplexing for mixed-signal timing and communication - reduces external component count |
| P42/ANI21/SCK01/SCL01/TI03/TO03 | Port 4 bit 2 / Analog Input 21 / SPI Clock / I²C Clock / Timer I/O | Second serial interface clock domain - allows concurrent CSI and I²C operation on separate buses |
| P60/KR4/SCLA0/(TxD0) | Port 6 bit 0 / Key Return 4 / I²C Clock A / UART Transmit (remappable) | I²C master clock output with 6 V-tolerant N-ch open-drain drive - interfaces directly with 5 V I²C slaves |
| P61/KR5/SDAA0/(RxD0) | Port 6 bit 1 / Key Return 5 / I²C Data A / UART Receive (remappable) | I²C bidirectional data line with slew-rate control - ensures robust bus signaling across long traces |
| P121/KR3/X1/(TI03)/(INTP3) | Port 12 bit 1 / Key Return 3 / Crystal Oscillator Input / Timer Input / Interrupt | Primary crystal oscillator input with internal feedback resistor - eliminates external load capacitors in many applications |
| P122/KR2/X2/EXCLK/(TI02)/(INTP2) | Port 12 bit 2 / Key Return 2 / Crystal Oscillator Output / External Clock Input / Timer Input / Interrupt | Crystal output or external clock input - supports both crystal and external clock sources for system flexibility |
| P125/KR1/SI01/RESET | Port 12 bit 5 / Key Return 1 / SPI Data In / Reset Input | Active-low reset with internal pull-up - provides hardware reset initiation and SPI data path sharing |
| P137/INTP0 | Port 13 bit 7 / External Interrupt 0 | Dedicated interrupt pin with glitch filter - suitable for fast-response event detection (e.g., emergency stop) |
| VDD | Power Supply | 1.8–5.5 V main supply - powers core, flash, RAM, and all I/O; supports wide-input DC-DC or LDO regulation |
| VSS | Ground | Reference return for analog and digital domains - requires low-impedance connection to minimize noise coupling |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 63 μA/MHz active current and 0.52 μA STOP mode enable >10-year battery life in coin-cell-powered IoT endpoints |
| On-chip data flash | 2 KB of EEPROM-like nonvolatile memory with 1M-cycle endurance and background operation - supports field firmware updates without halting application |
| Hardware CRC accelerator | Dedicated CRC-16/32 engine offloads checksum computation from CPU - improves OTA update integrity verification speed by 12× vs software implementation |
| Multi-protocol serial interface | 2 CSI (SPI), 2 simplified I²C, and 1 UART channels share only 7 pins via remapping - reduces PCB layer count in sensor hub designs |
| Configurable analog subsystem | 11-channel 10-bit ADC with internal 1.45 V reference and temperature sensor - eliminates external reference and thermal compensation components |
| Safe startup & supervision | Integrated POR (1.51 V), 12-level LVD with interrupt/reset, and window watchdog timer - meets IEC 61508 SIL-2 functional safety requirements |
Applications
| Smart Home Sensor Hub | Industrial Motor Control Panel |
|---|---|
Use Scenario: Central node aggregating temperature, humidity, motion, and ambient light data from multiple sensors via I²C and UART. IC Role / Device Role / Timing Role: Main controller executing sensor fusion algorithms, managing wireless module communication, and driving local LED indicators. Use Value: Integrated 2 KB data flash stores calibration coefficients and OTA update images; 63 μA/MHz operation extends battery life beyond 5 years in maintenance-free deployments. |
Use Scenario: Local control unit for BLDC motor drives, monitoring current/voltage feedback, handling encoder signals, and implementing closed-loop PID. IC Role / Device Role / Timing Role: Real-time motor timing controller using TAU0 timer channels for precise PWM generation and TI00/TO00 for quadrature decode. Use Value: Four 16-bit timer channels with independent prescalers enable simultaneous 3-phase PWM and position capture - eliminating need for external timer ICs. |
| Medical Wearable Monitor | Energy Meter Front-End |
Use Scenario: Portable pulse oximeter acquiring analog PPG signals, performing real-time SpO₂ calculation, and logging data to internal flash. IC Role / Device Role / Timing Role: Signal acquisition and processing unit leveraging 10-bit ADC with internal reference and temperature sensor for drift compensation. Use Value: On-chip 1.45 V reference and temperature sensor enable accurate ratiometric ADC measurements without external components - reducing BOM cost and board area. |
Use Scenario: AC energy meter front-end measuring voltage/current waveforms, computing RMS, power factor, and kWh accumulation. IC Role / Device Role / Timing Role: High-precision analog acquisition engine using 11-channel ADC with simultaneous sampling capability and CRC-verified data logging. Use Value: Hardware CRC engine validates flash-stored energy data integrity; 1.8–5.5 V operation supports direct interface with isolated DC-DC supplies in metering modules. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10267ASP#V0 | 2 KB code flash, 256 B RAM, same 20-pin LSSOP package and peripheral set | Lower memory capacity suits simpler sensor polling or GPIO logic tasks without firmware updates | Select when application firmware fits ≤2 KB and no data logging or OTA capability is required |
| R5F10269ASP#V0 | 12 KB code flash, 768 B RAM, identical low-power features and pinout | Higher memory headroom supports complex protocol stacks (e.g., BLE mesh, Modbus TCP) and larger data buffers | Choose for future-proofing or applications requiring >8 KB application code plus bootloader space |
Compared with R5F10267ASP#V0 and R5F10269ASP#V0, the R5F10268ASP#V0 delivers optimal balance of code/data flash (8 KB/2 KB), RAM (512 B), and power efficiency for mid-complexity embedded control - avoiding over-provisioning while retaining OTA update capability.
Availability
R5F10268ASP#V0 is available at Aetrix Electronics and suitable for smart home sensor hubs, industrial motor control panels, and medical wearable monitors requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant manufacturing.
Supply support for R5F10268ASP#V0 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 targets cost-sensitive, ultra-low-power general-purpose embedded applications - delivering optimized performance-per-milliwatt for battery-operated and energy-harvesting systems.
FAQ
What is the maximum operating frequency and corresponding DMIPS rating for R5F10268ASP#V0?
The R5F10268ASP#V0 operates at up to 24 MHz using its high-speed on-chip oscillator, delivering 31 DMIPS of processing performance. This frequency is achievable across the full 1.8 V–5.5 V supply range, with instruction execution time as low as 0.04167 μs. The RL78 core maintains consistent DMIPS scaling regardless of voltage within spec limits.
Does R5F10268ASP#V0 support in-system programming and field firmware updates?
Yes, the R5F10268ASP#V0 supports in-system programming via its on-chip debug interface and includes 2 KB of dedicated data flash memory rated for 1,000,000 write/erase cycles. Background operation (BGO) allows application code to run while rewriting data flash - enabling seamless over-the-air firmware updates without system interruption.
What low-power modes are available on R5F10268ASP#V0 and their typical current draw?
The R5F10268ASP#V0 offers HALT (1.2 μA), STOP (0.52 μA), and SNOOZE modes. In STOP mode with RTC active, it draws just 0.52 μA at 3.0 V and 25°C. All modes retain RAM content and allow wake-up via external interrupt, timer, or serial activity - critical for battery longevity in intermittent-sensing applications.
Can R5F10268ASP#V0 interface directly with 5 V I²C peripherals?
Yes, pins P60 (SCLA0) and P61 (SDAA0) are N-ch open-drain I/Os with 6 V tolerance and internal pull-up capability. When configured as I²C bus lines, they safely interface with standard 5 V I²C slaves without external level shifters - simplifying design and reducing component count in mixed-voltage systems.
What is the ADC resolution, channel count, and reference voltage source on R5F10268ASP#V0?
The R5F10268ASP#V0 integrates an 10-bit successive-approximation ADC with 11 input channels. It uses an internal 1.45 V reference (AVREFP/AVREFM) and supports ratiometric measurements against VDD. The ADC includes a built-in temperature sensor and operates across the full 1.8–5.5 V supply range without external reference components.
R5F10268ASP#V0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 20-LSSOP (0.173", 4.40mm Width)
- Series:
- RL78/G12
- Packaging:
- Tray
- 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#V0 FAQ
1.How can I place an order for R5F10268ASP#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10268ASP#V0 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#V0 reliable?
The price and inventory of R5F10268ASP#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10268ASP#V0 is usually 5 days.
3.What payment methods are accepted for R5F10268ASP#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10268ASP#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10268ASP#V0?
R5F10268ASP#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10268ASP#V0 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#V0?
For technical support, including R5F10268ASP#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10268ASP#V0 requirements.
6.How does Aetrix verify that R5F10268ASP#V0 is sourced from the original manufacturer or authorized distributors?
All R5F10268ASP#V0 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#V0 meets industry standards.
7.What is the process for return or replacement of R5F10268ASP#V0?
All R5F10268ASP#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10268ASP#V0, 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#V0 part is unused and in its original packaging.
Return procedure for R5F10268ASP#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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