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Renesas R5F10268GSM#75
- Part No.:
- R5F10268GSM#75
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 20-LSSOP (0.173", 4.40mm Width)
- Datasheet:
-
R5F10268GSM#75.pdf
- Description:
- 16-BIT GENERAL MCU RL78/G12 8K 2
- Quantity:
- Payment:
- Shipping:
Inventory:4,134
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Product details
Overview
R5F10268GSM#75 from Renesas Electronics is a 20-pin RL78/G12 16-bit microcontroller with 8 KB code flash, 2 KB data flash, and 512 B RAM, operating at 1.8–5.5 V and supporting -40°C to +105°C industrial ambient temperature. It integrates a 24 MHz high-accuracy (±1.0%) on-chip oscillator, 10-bit 11-channel ADC, 4-channel 16-bit TAU timer, UART/CSI/I²C serial interfaces, DMA controller, and CRC hardware - deployed in battery-powered sensor nodes and industrial control modules requiring low-power operation and embedded firmware update capability.
For engineers reviewing the R5F10268GSM#75 datasheet, R5F10268GSM#75 pinout, R5F10268GSM#75 application, or R5F10268GSM#75 equivalent, key selection criteria include its 2 KB data flash for background reprogramming, industrial-grade temperature rating (G-suffix), TSSOP-20 package with 0.65-mm pitch, and integrated safety features including RAM/SFR guard and CRC engine - all critical for functional safety-aware designs in motor control and smart metering.
Technical Context
The R5F10268GSM#75 implements the RL78 CPU core with 3-stage pipeline CISC architecture, delivering 31 DMIPS at 24 MHz while consuming only 63 μA/MHz in active mode. Its memory subsystem includes 8 KB code flash (1 KB block size) with self-programming and flash shield window, plus 2 KB data flash supporting background operation (BGO) and 1M write cycles (TYP).
Peripheral integration centers on dual CSI channels (SPI-compatible), dual simplified I²C interfaces, one UART, 4-channel 16-bit timer with PWM output capability, 11-channel 10-bit ADC with internal 1.45 V reference and temperature sensor, and 2-channel DMA enabling efficient data movement between SFRs and RAM in just 2 clocks per transfer.
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 - enables direct interface with 1.8/2.5/3.3/5 V logic and battery-powered operation |
| Flash Memory | 8 KB code flash + 2 KB data flash - supports firmware updates and parameter storage without external EEPROM |
| ADC Resolution | 10-bit, 11-channel with internal 1.45 V reference and temperature sensor - eliminates need for external references in thermal monitoring |
| Timer Resources | 4-channel 16-bit TAU timer + 12-bit interval timer + watchdog - provides precise timing, PWM generation, and system supervision |
| Serial Interfaces | 1 UART + 2 CSI (SPI-compatible) + 2 simplified I²C - enables concurrent communication with sensors, displays, and host controllers |
| Temperature Range | -40°C to +105°C (G-grade) - qualified for under-hood automotive, industrial PLC, and power supply control environments |
Pinout & Package
TSSOP-20 package (4.4 × 6.5 mm, 0.65-mm pitch), JEDEC MS-013AC compliant, with exposed pad not present - suitable for standard surface-mount assembly and reflow processes.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/ANI16/PCLBUZ0/SCK00/SCL00 | Port 1 bit 0 / Analog input 16 / Programmable clock/buzzer / SPI clock / I²C clock | Multi-function pin supporting timer-based buzzer drive, synchronous serial master/slave, and analog sensing |
| 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 peripheral communication and on-chip debugging via TOOL interface |
| P12/ANI18/SO00/TxD0/TOOLTxD | Port 1 bit 2 / Analog input 18 / SPI output / UART transmit / I²C data / debug transmit | Enables full-duplex UART/CSI/I²C operation and debug visibility without dedicated debug pins |
| P13/ANI19/TI00/TO00/INTP2 | Port 1 bit 3 / Analog input 19 / Timer input / Timer output / External interrupt 2 | Supports edge-triggered capture, PWM output, and interrupt-driven event handling simultaneously |
| P14/ANI20/TI01/TO01/INTP3 | Port 1 bit 4 / Analog input 20 / Timer input / Timer output / External interrupt 3 | Dual timer I/O with interrupt capability enables quadrature decoding or pulse-width measurement |
| P20/ANI0/AVREFP | Port 2 bit 0 / Analog input 0 / ADC positive reference voltage | Configurable as analog input or precision reference source - critical for ratiometric sensor measurements |
| P21/ANI1/AVREFM | Port 2 bit 1 / Analog input 1 / ADC negative reference voltage | Provides differential reference pair with P20 for high-accuracy analog front-end design |
| P22/ANI2 | Port 2 bit 2 / Analog input 2 | Dedicated analog input channel with internal sampling capacitor - optimized for low-noise signal acquisition |
| P23/ANI3 | Port 2 bit 3 / Analog input 3 | Additional analog channel supporting multi-sensor monitoring in compact industrial nodes |
| P40/KR0/TOOL0 | Port 4 bit 0 / Key return 0 / Debug I/O | Supports capacitive touch key scanning and bidirectional debug communication over single pin |
| P41/ANI22/SO01/SDA01/TI02/TO02/INTP1 | Port 4 bit 1 / Analog input 22 / SPI output / I²C data / Timer input/output / Interrupt 1 | High-density peripheral multiplexing enables minimal pin count without sacrificing functionality |
| P42/ANI21/SCK01/SCL01/TI03/TO03 | Port 4 bit 2 / Analog input 21 / SPI clock / I²C clock / Timer input/output | Second serial interface clock domain with timer synchronization - ideal for daisy-chained sensor networks |
| P60/KR4/SCLA0/(TxD0) | Port 6 bit 0 / Key return 4 / I²C clock A / UART transmit (remapped) | I²C master clock output with open-drain drive strength - compatible with standard 400 kHz bus timing |
| P61/KR5/SDAA0/(RxD0) | Port 6 bit 1 / Key return 5 / I²C data A / UART receive (remapped) | I²C data line with slew-rate control - ensures noise immunity in electrically noisy industrial settings |
| P121/KR3/X1/(TI03)/(INTP3) | Port 12 bit 1 / Key return 3 / Crystal input / Timer input / Interrupt 3 | Primary crystal oscillator connection with optional timer capture - supports precise timekeeping and event timestamping |
| 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 - enables synchronization to system-level timing sources |
| P125/KR1/SI01/RESET | Port 12 bit 5 / Key return 1 / SPI input / Reset input | Hardware reset with glitch filtering - ensures reliable startup after brownout or ESD events |
| P137/INTP0 | Port 13 bit 7 / External interrupt 0 | Dedicated interrupt pin with configurable polarity - optimized for fast response to safety-critical signals |
| VDD | Power supply | Single 1.8–5.5 V supply - eliminates need for level shifters when interfacing with mixed-voltage peripherals |
| VSS | Ground | Common reference for analog/digital domains - layout separation recommended for noise-sensitive ADC operation |
Key Features
| Feature | Design Value |
|---|---|
| True low-power platform | 63 μA/MHz active current enables >10-year battery life in wireless sensor nodes using duty-cycled operation |
| Data flash with BGO | 2 KB data flash supports background rewriting during program execution - enables seamless firmware updates without service interruption |
| Integrated safety functions | CRC engine, RAM guard, and SFR guard provide hardware-enforced integrity checking for ASIL-B–aligned applications |
| Multi-voltage I/O | I/O ports support 1.8/2.5/3.3 V logic levels - simplifies interface to legacy and modern peripherals without external level translators |
| On-chip debug with TOOL interface | Single-pin debug (TOOL0/TOOLRxD/TOOLTxD) reduces PCB footprint and eliminates JTAG header cost |
| High-accuracy on-chip oscillator | ±1.0% frequency accuracy (–20°C to +85°C) eliminates external crystal for cost-sensitive applications while maintaining UART timing compliance |
Applications
| Smart Energy Metering | Industrial Motor Control |
|---|---|
Use Scenario: Embedded metrology unit in DIN-rail mounted electricity meters performing real-time voltage/current sampling, tariff calculation, and secure data logging. IC Role / Device Role / Timing Role: Primary MCU executing metrology algorithms, managing secure flash writes to data flash, and synchronizing ADC sampling to line frequency via timer inputs. Use Value: Integrated 11-channel 10-bit ADC with internal reference and 2 KB data flash enable accurate energy computation and tamper-proof parameter storage without external components. |
Use Scenario: Compact BLDC motor driver board controlling fan/pump speed in HVAC systems with closed-loop feedback and thermal protection. IC Role / Device Role / Timing Role: Real-time motor commutation controller generating PWM outputs via TAU timer, reading hall-effect sensors via GPIO, and monitoring temperature via on-chip sensor. Use Value: 4-channel 16-bit timer with PWM output and integrated temperature sensor eliminate external comparators and thermal ICs - reducing BOM cost and board area. |
| Wireless Sensor Node | Programmable Logic Controller (PLC) I/O Module |
Use Scenario: Battery-powered environmental monitor transmitting CO₂, humidity, and temperature data via sub-GHz RF link every 5 minutes. IC Role / Device Role / Timing Role: System orchestrator entering STOP mode between readings, waking on timer interrupt, acquiring sensor data via I²C/ADC, and initiating RF transmission. Use Value: Ultra-low power consumption (63 μA/MHz) and multiple low-power modes extend coin-cell battery life beyond 5 years in intermittent operation. |
Use Scenario: DIN-rail mounted digital input module converting 24 V DC field signals into isolated digital status for PLC backplane communication. IC Role / Device Role / Timing Role: Isolation interface manager sampling optocoupler outputs, debouncing inputs via timer-based software filters, and reporting status via RS-485 UART. Use Value: Hardware CRC and RAM guard ensure data integrity across electromagnetic interference-prone factory floors - meeting IEC 61000-4-4 compliance requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10269GSM#75 | 12 KB code flash, same 2 KB data flash, identical peripherals and package | Higher firmware capacity for complex protocol stacks (e.g., Modbus TCP with TLS) | Select when application firmware exceeds 8 KB and requires field-upgradable secure boot loader |
| R5F10368GSM#75 | No data flash, no DMA, no CRC/RAM/SFR guard, ±5.0% oscillator accuracy | Limited to basic control tasks without background data logging or functional safety requirements | Choose for cost-sensitive consumer applications where data persistence and safety certification are unnecessary |
Compared with R5F10269GSM#75, the R5F10268GSM#75 trades 4 KB flash capacity for identical safety and low-power features; versus R5F10368GSM#75, it adds data flash, DMA, and hardware safety blocks essential for industrial firmware resilience and deterministic real-time performance.
Availability
R5F10268GSM#75 is available at Aetrix Electronics and suitable for smart energy metering, industrial motor control, wireless sensor node, and PLC I/O module applications requiring stable component supply, long-term lifecycle assurance, and traceable sourcing for industrial OEMs.
Supply support for R5F10268GSM#75 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 headquartered in Tokyo, Japan, specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.
The RL78/G12 product line delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive industrial and consumer applications requiring robust peripheral integration, embedded security, and extended temperature operation - with R5F10268GSM#75 targeting high-reliability edge nodes.
FAQ
What is the maximum operating frequency and instruction throughput of the R5F10268GSM#75?
The R5F10268GSM#75 operates at up to 24 MHz using its high-accuracy on-chip oscillator, delivering 31 DMIPS of processing performance. Its RL78 CPU core executes instructions in as little as 0.04167 µs (at 24 MHz), with minimum instruction time configurable from high-speed (0.04167 µs) to ultra-low-speed (1 µs at 1 MHz) to optimize power/performance trade-offs in the R5F10268GSM#75.
Does the R5F10268GSM#75 support background data flash rewriting while executing application code?
Yes, the R5F10268GSM#75 supports Background Operation (BGO) for its 2 KB data flash memory. This allows the CPU to execute instructions from program memory while simultaneously rewriting data flash - enabling seamless firmware updates, parameter logging, or calibration storage without halting real-time operations in the R5F10268GSM#75.
What safety features are integrated into the R5F10268GSM#75 for industrial applications?
The R5F10268GSM#75 includes hardware CRC calculation engine, RAM guard, and SFR guard - all designed to detect memory corruption and unauthorized register access. These features support functional safety requirements in industrial control applications and are confirmed in the RL78/G12 datasheet for the R5F10268GSM#75 G-grade variant.
Can the R5F10268GSM#75 operate reliably at 105°C ambient temperature?
Yes, the R5F10268GSM#75 is rated for industrial operation from –40°C to +105°C (G-grade). Its electrical specifications, including flash endurance, oscillator accuracy (±2.0% at +85°C to +105°C), and I/O drive strength, are guaranteed across this full range - making it suitable for under-hood automotive and industrial power electronics applications using the R5F10268GSM#75.
How many serial communication interfaces does the R5F10268GSM#75 support in its 20-pin TSSOP package?
The R5F10268GSM#75 supports one UART channel, two CSI (SPI-compatible) channels, and two simplified I²C channels - all accessible within its 20-pin TSSOP footprint. Pin multiplexing via the Peripheral I/O Redirection Register (PIOR) allows flexible assignment of these interfaces to available GPIOs without requiring additional package variants for the R5F10268GSM#75.
R5F10268GSM#75 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 20-LSSOP (0.173", 4.40mm Width)
- Series:
- RL78/G12
- Packaging:
- Tray
- 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 ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F10268GSM#75 FAQ
1.How can I place an order for R5F10268GSM#75 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10268GSM#75 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 R5F10268GSM#75 reliable?
The price and inventory of R5F10268GSM#75 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10268GSM#75 is usually 5 days.
3.What payment methods are accepted for R5F10268GSM#75?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10268GSM#75 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10268GSM#75?
R5F10268GSM#75 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10268GSM#75 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 R5F10268GSM#75?
For technical support, including R5F10268GSM#75 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10268GSM#75 requirements.
6.How does Aetrix verify that R5F10268GSM#75 is sourced from the original manufacturer or authorized distributors?
All R5F10268GSM#75 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 R5F10268GSM#75 meets industry standards.
7.What is the process for return or replacement of R5F10268GSM#75?
All R5F10268GSM#75 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10268GSM#75, 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 R5F10268GSM#75 part is unused and in its original packaging.
Return procedure for R5F10268GSM#75:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F10268GSM#75 Tags
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