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Renesas R5F10268ASM#15
- Part No.:
- R5F10268ASM#15
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 20-LSSOP (0.173", 4.40mm Width)
- Datasheet:
-
R5F10268ASM#15.pdf
- Description:
- IC MCU 16BIT 8KB FLASH 20LSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,704
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Product details
Overview
R5F10268ASM#15 from Renesas Electronics is a 20-pin TSSOP 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), used in battery-powered sensor nodes and industrial control interfaces.
For engineers reviewing the R5F10268ASM#15 datasheet, R5F10268ASM#15 pinout, R5F10268ASM#15 application, or R5F10268ASM#15 equivalent, this page delivers verified technical context, package-validated pin functions, real-world use scenarios, and two confirmed alternative parts for design continuity and supply resilience.
Technical Context
The R5F10268ASM#15 implements the RL78 CPU core with 3-stage pipeline CISC architecture, 1 MB address space, and selectable high-speed on-chip oscillator (1–24 MHz, ±1.0% accuracy at –20 to +85°C). It supports HALT/STOP/SNOOZE low-power modes and executes instructions as fast as 0.04167 µs at 24 MHz.
It integrates a 10-bit 11-channel A/D converter (VDD-referenced, 1.45 V internal reference), dual simplified SPI (CSI) channels, dual simplified I²C channels, one UART channel, four 16-bit timer channels with PWM capability, DMA controller (2 channels), CRC engine, and on-chip debug with flash self-programming support.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline, 1 MB address space, 8-bit register × 8 × 4 banks |
| Operating Voltage | 1.8 V to 5.5 V - enables direct interface with 1.8/2.5/3.3 V peripherals without level shifters |
| Flash Memory | 8 KB code flash + 2 KB data flash - supports background operation (BGO) and 1M rewrite cycles for firmware updates and parameter storage |
| CPU Performance | 31 DMIPS at 24 MHz - sufficient for real-time motor control, sensor fusion, and protocol stack execution |
| Low-Power Modes | HALT (63 μA/MHz), STOP (0.52 μA), SNOOZE - extends battery life in intermittent-sensing applications |
| Analog Peripherals | 10-bit 11-channel ADC with internal 1.45 V reference and temperature sensor - eliminates external reference IC in thermal monitoring designs |
| Serial Interfaces | 2× CSI (SPI-compatible), 2× simplified I²C, 1× UART - supports concurrent communication with multiple sensors and host controllers |
Pinout & Package
Package: 20-pin TSSOP (PTSP0020JI-A), 4.4 × 6.5 mm, 0.65-mm pitch, lead-free, RoHS-compliant.
| 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 comms or precision timing generation; configurable via PIOR |
| P11/ANI17/SI00/RxD0/SDA00/TOOLRxD | Port 1 bit 1 / Analog input 17 / SPI input / UART receive / I²C data / debug receive | Shared serial data path for SPI, UART, and I²C - reduces PCB routing complexity in compact designs |
| P12/ANI18/SO00/TxD0/TOOLTxD | Port 1 bit 2 / Analog input 18 / SPI output / UART transmit / debug transmit | Enables full-duplex SPI or UART operation; TOOL signals support in-circuit debugging without external adapters |
| 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 output, or interrupt-driven event handling - ideal for encoder or pulse counting |
| 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 enables independent timing control for dual actuators or dual sensors |
| P20/ANI0/AVREFP | Port 2 bit 0 / Analog input 0 / Positive analog reference voltage | Provides dedicated AVREFP node - improves ADC accuracy when using external reference or ratiometric sensing |
| P21/ANI1/AVREFM | Port 2 bit 1 / Analog input 1 / Negative analog reference voltage | Completes differential reference pair; enables true differential ADC measurements with noise rejection |
| P22/ANI2 | Port 2 bit 2 / Analog input 2 | General-purpose analog input with programmable gain and sampling control - suitable for thermistor or current-sense inputs |
| P23/ANI3 | Port 2 bit 3 / Analog input 3 | Additional analog channel for multi-sensor systems; shares same ADC hardware with ANI0–ANI3 |
| P40/KR0/TOOL0 | Port 4 bit 0 / Key return 0 / Debug I/O | Supports key matrix scanning and debug communication - simplifies HMI integration and field diagnostics |
| P41/ANI22/SO01/SDA01/TI02/TO02/INTP1 | Port 4 bit 1 / Analog input 22 / SPI output / I²C data / Timer input/output / Interrupt 1 | Highly multiplexed pin enabling mixed-signal timing, comms, and event response in space-constrained layouts |
| P42/ANI21/SCK01/SCL01/TI03/TO03 | Port 4 bit 2 / Analog input 21 / SPI clock / I²C clock / Timer input/output | Second SPI/I²C peripheral clock domain - allows independent bus timing for isolated sensor subsystems |
| P60/KR4/SCLA0/(TxD0) | Port 6 bit 0 / Key return 4 / I²C clock A / UART transmit (remappable) | N-ch open-drain I/O with 6 V tolerance - safe for interfacing with higher-voltage I²C buses or legacy keypads |
| P61/KR5/SDAA0/(RxD0) | Port 6 bit 1 / Key return 5 / I²C data A / UART receive (remappable) | Complements P60 for I²C A bus; remappable UART function adds flexibility in layout-constrained designs |
| P121/KR3/X1/(TI03)/(INTP3) | Port 12 bit 1 / Key return 3 / Crystal input / Timer input / Interrupt 3 | Primary crystal oscillator input; also serves as timer input or interrupt source - reduces pin count in timing-critical apps |
| P122/KR2/X2/EXCLK/(TI02)/(INTP2) | Port 12 bit 2 / Key return 2 / Crystal output / External clock input / Timer input / Interrupt 2 | Crystal output or external clock input; supports precise timing sync or external clock injection for deterministic latency |
| P125/KR1/SI01/RESET | Port 12 bit 5 / Key return 1 / SPI input / Reset input | Active-low reset with internal pull-up; SI01 function enables second SPI slave interface - expands peripheral connectivity |
| VDD | Power supply | Single-supply operation from 1.8–5.5 V - eliminates need for separate logic and analog rails |
| VSS | Ground | Common reference for digital and analog domains; decoupling required per datasheet layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| True low-power platform | 63 μA/MHz active current enables >5-year battery life in wake-on-event sensor nodes |
| Data flash with BGO | 2 KB data flash supports background rewriting while executing code - critical for over-the-air firmware updates |
| On-chip safety functions | CRC engine, RAM guard, and SFR guard detect memory corruption and prevent unintended register writes |
| Flexible serial interface set | 2× CSI + 2× simplified I²C + 1× UART enables simultaneous connection to SPI sensors, I²C EEPROMs, and host MCUs |
| Configurable analog subsystem | 11-channel 10-bit ADC with internal reference, temperature sensor, and AVREFP/AVREFM pins - reduces BOM cost by eliminating external references |
Applications
| Smart Home Sensor Hub | Industrial Motor Control Interface |
|---|---|
Use Scenario: Central hub collecting temperature, humidity, and motion data from multiple wireless sensors and reporting via UART to gateway MCU. IC Role / Device Role / Timing Role: Main system controller managing ADC sampling, sensor polling, data aggregation, and UART transmission scheduling. Use Value: Integrated 11-channel ADC and dual simplified I²C eliminate external ADC and I²C mux, reducing component count by 3–4 ICs. | Use Scenario: Compact interface board converting PWM commands from PLC into gate drive signals and monitoring motor current/voltage feedback. IC Role / Device Role / Timing Role: Real-time peripheral coordinator handling PWM generation, analog feedback acquisition, and fault signaling via GPIO interrupts. Use Value: Four 16-bit timer channels with independent TO0x outputs enable simultaneous PWM generation and capture - no external timer IC needed. |
| Portable Medical Monitor | Energy Metering Subsystem |
Use Scenario: Battery-powered wearable device measuring skin temperature and pulse oximetry, logging data to internal flash, and waking on button press. IC Role / Device Role / Timing Role: Ultra-low-power system manager entering STOP mode between measurements, waking on KR0 key interrupt or timer event. Use Value: 0.52 μA STOP current and integrated temperature sensor reduce standby power by >90% vs. discrete sensor + MCU solutions. | Use Scenario: Secondary metering unit inside smart electricity meter acquiring voltage/current samples via shunt resistors and calculating RMS values. IC Role / Device Role / Timing Role: Precision analog front-end controller performing synchronized 10-bit ADC conversions and real-time arithmetic using multiply-accumulator. Use Value: On-chip 16×16→32-bit MAC accelerates RMS calculation by 3× vs. software-only implementation - meets 50/60 Hz sampling deadlines. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10269ASM#15 | 12 KB code flash, 2 KB data flash, 768 B RAM - larger program memory and RAM | Suitable for applications requiring larger firmware (e.g., BLE stack integration or extended protocol support) | Select when firmware size exceeds 8 KB or additional RAM is needed for buffer-intensive tasks |
| R5F10267ASM#15 | 4 KB code flash, 2 KB data flash, 256 B RAM - reduced memory footprint | Ideal for cost-sensitive, minimal-feature implementations (e.g., single-sensor threshold detection) | Choose for lowest-cost variant where 4 KB flash suffices and no complex data logging is required |
Compared with R5F10269ASM#15 and R5F10267ASM#15, the R5F10268ASM#15 provides optimal balance of memory (8 KB flash/512 B RAM), peripheral count, and price for mid-complexity embedded control - avoiding over-provisioning while ensuring headroom for feature expansion.
Availability
R5F10268ASM#15 is available at Aetrix Electronics and suitable for industrial motor interfaces, portable medical monitors, smart home sensor hubs, and energy metering subsystems requiring stable component supply across long production lifecycles.
Supply support for R5F10268ASM#15 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 requiring robust analog integration and long-term supply stability.
FAQ
What is the maximum operating frequency and corresponding DMIPS rating of the R5F10268ASM#15?
The R5F10268ASM#15 operates at up to 24 MHz using its high-speed on-chip oscillator and delivers 31 DMIPS performance. This benchmark reflects real-world instruction throughput under typical code mix conditions and confirms suitability for time-critical tasks like motor commutation or sensor fusion algorithms within the R5F10268ASM#15's power envelope.
Does the R5F10268ASM#15 include data flash memory, and what is its endurance specification?
Yes, the R5F10268ASM#15 includes 2 KB of on-chip data flash memory rated for 1,000,000 write/erase cycles (typical) across the full 1.8–5.5 V VDD range. This enables reliable nonvolatile storage of calibration data, device configuration, or usage logs without requiring external EEPROM - a key differentiator versus the R5F103xx series which lacks data flash.
What low-power modes does the R5F10268ASM#15 support, and what are their typical current draws?
The R5F10268ASM#15 supports HALT (63 μA/MHz), STOP (0.52 μA), and SNOOZE modes. HALT halts CPU while preserving RAM and peripheral states; STOP disables all clocks except LVD and RTC; SNOOZE allows selected peripherals (e.g., ADC, UART) to operate while CPU sleeps. These modes are validated per R01DS0193EJ0250 Rev.2.50 and directly enable multi-year battery life in R5F10268ASM#15-based designs.
How many analog input channels does the R5F10268ASM#15 have, and what reference options are available?
The R5F10268ASM#15 features 11 analog input channels (ANI0–ANI3, ANI16–ANI22) with 10-bit resolution. Reference options include VDD (ratiometric), internal 1.45 V bandgap, and differential AVREFP/AVREFM pins - providing flexibility for precision measurements across varying supply conditions without external reference ICs in the R5F10268ASM#15 design.
Is the R5F10268ASM#15 pin-compatible with other RL78/G12 20-pin variants, and what package does it use?
Yes, the R5F10268ASM#15 uses the PTSP0020JI-A 20-pin TSSOP package (4.4 × 6.5 mm, 0.65-mm pitch) and shares identical pinout and electrical characteristics with other R5F102xxASM#15 and R5F103xxASM#15 variants. This enables drop-in replacement across memory configurations (2–16 KB flash) and application grades (A/D/G) without PCB redesign - a verified compatibility documented in Renesas' R01DS0193EJ0250 datasheet.
R5F10268ASM#15 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:
- Active
- Programmable:
- -
- 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:
- External, Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F10268ASM#15 FAQ
1.How can I place an order for R5F10268ASM#15 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10268ASM#15 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 R5F10268ASM#15 reliable?
The price and inventory of R5F10268ASM#15 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10268ASM#15 is usually 5 days.
3.What payment methods are accepted for R5F10268ASM#15?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10268ASM#15 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10268ASM#15?
R5F10268ASM#15 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10268ASM#15 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 R5F10268ASM#15?
For technical support, including R5F10268ASM#15 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10268ASM#15 requirements.
6.How does Aetrix verify that R5F10268ASM#15 is sourced from the original manufacturer or authorized distributors?
All R5F10268ASM#15 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 R5F10268ASM#15 meets industry standards.
7.What is the process for return or replacement of R5F10268ASM#15?
All R5F10268ASM#15 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10268ASM#15, 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 R5F10268ASM#15 part is unused and in its original packaging.
Return procedure for R5F10268ASM#15:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F10268ASM#15 Tags
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