Renesas R5F10267GSM#75
- Part No.:
- R5F10267GSM#75
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 20-LSSOP (0.173", 4.40mm Width)
- Datasheet:
-
R5F10267GSM#75.pdf
- Description:
- 16-BIT GENERAL MCU RL78/G12 4K 2
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F10267GSM#75 from Renesas Electronics is a 20-pin RL78/G12 16-bit microcontroller with 2 KB code flash, 2 KB data flash, and 256 B RAM, operating at 1.8–5.5 V and supporting industrial-grade temperature range (−40°C to +105°C). It integrates an ultra-low-power RL78 CPU core (31 DMIPS @ 24 MHz), 10-bit A/D converter (11 channels), UART/CSI/I²C serial interfaces, 4-channel 16-bit TAU timer, and on-chip debug functionality - deployed in battery-powered sensor nodes and industrial control modules.
For engineers reviewing the R5F10267GSM#75 datasheet, R5F10267GSM#75 pinout, R5F10267GSM#75 application, or R5F10267GSM#75 equivalent, key selection criteria include its G-grade extended-temperature operation, integrated 2 KB data flash for EEPROM emulation, DMA support (2 channels), CRC hardware acceleration, and TSSOP-20 package compatibility with legacy RL78/G12 designs.
Technical Context
The R5F10267GSM#75 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and configurable instruction execution time (0.04167 µs @ 24 MHz high-speed on-chip oscillator). Its memory subsystem includes 2 KB code flash (1 KB block size), 2 KB data flash with background operation (BGO) and 1M rewrite cycles, and 256 B RAM - all accessible under single-supply 1.8–5.5 V operation.
Peripheral integration centers on low-power system management: HALT/STOP/SNOOZE modes, on-chip POR/LVD (12-level selectable), 15 kHz low-speed oscillator, and dedicated watchdog timer. Serial connectivity comprises 1 UART, 2 CSI (SPI-compatible), and 2 simplified I²C channels - all routed through flexible peripheral I/O redirection (PIOR) for pin assignment optimization.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC CPU with 3-stage pipeline and 1 MB address space |
| Operating Voltage | 1.8 V to 5.5 V - enables direct interface with 1.8/2.5/3.3 V logic and battery-backed operation |
| Flash Memory | 2 KB code flash + 2 KB data flash - supports self-programming and BGO for real-time firmware updates |
| ADC Resolution | 10-bit A/D converter with 11 input channels and internal 1.45 V reference - suitable for analog sensor interfacing |
| Timer Resources | 4-channel 16-bit TAU timer with PWM output capability and 1-channel 12-bit interval timer |
| Serial Interfaces | 1 UART, 2 CSI (SPI-compatible), 2 simplified I²C - provides multi-protocol peripheral communication without external transceivers |
| Power Modes | HALT, STOP, and SNOOZE modes - achieves 63 μA/MHz active current and sub-μA standby consumption |
Pinout & Package
TSSOP-20 package (4.4 × 6.5 mm, 0.65-mm pitch), JEDEC MS-013AC compliant, with exposed pad not present - compatible with standard reflow profiles and automated assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/ANI16/PCLBUZ0/SCK00/SCL00 | Port 1 bit 0 / Analog Input 16 / Programmable Clock Output / SPI Clock / I²C Clock | Multi-function pin supporting timer-driven buzzer tone generation, synchronous serial master clock, or I²C bus timing |
| 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 across protocols - simplifies PCB routing for mixed-interface systems |
| P12/ANI18/SO00/TxD0/TOOLTxD | Port 1 bit 2 / Analog Input 18 / SPI Data Out / UART Transmit / Debug TX | Unified transmit path for UART, SPI, and on-chip debug - 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 channel with interrupt capability - enables precise edge-triggered event handling |
| P14/ANI20/TI01/TO01/INTP3 | Port 1 bit 4 / Analog Input 20 / Timer Input 1 / Timer Output 1 / Interrupt 3 | Dedicated timer I/O pair for PWM generation or quadrature decoding with interrupt support |
| P20/ANI0/AVREFP | Port 2 bit 0 / Analog Input 0 / Positive Analog Reference | Primary analog reference voltage source - sets full-scale range for all 10-bit ADC conversions |
| P21/ANI1/AVREFM | Port 2 bit 1 / Analog Input 1 / Negative Analog Reference | Differential analog reference input - enables ratiometric sensing and noise rejection |
| P22/ANI2 | Port 2 bit 2 / Analog Input 2 | General-purpose analog input with internal pull-up/pull-down and TTL buffer options |
| P23/ANI3 | Port 2 bit 3 / Analog Input 3 | Additional analog input supporting temperature sensor and internal reference voltage measurement |
| P40/KR0/TOOL0 | Port 4 bit 0 / Key Return 0 / Debug Interface | Configurable as key scan input or debug communication line - supports low-pin-count HMI designs |
| P41/ANI22/SO01/SDA01/TI02/TO02/INTP1 | Port 4 bit 1 / Analog Input 22 / SPI Data Out / I²C Data / Timer Input 2 / Timer Output 2 / Interrupt 1 | High-density multiplexed pin enabling analog sensing, serial comms, and timer I/O in one terminal |
| P42/ANI21/SCK01/SCL01/TI03/TO03 | Port 4 bit 2 / Analog Input 21 / SPI Clock / I²C Clock / Timer Input 3 / Timer Output 3 | Secondary SPI/I²C clock with timer capture/compare - supports dual synchronous bus masters |
| P60/KR4/SCLA0/(TxD0) | Port 6 bit 0 / Key Return 4 / I²C Clock / UART Transmit (remapped) | N-ch open-drain I²C clock output with 6 V tolerance - allows level-shifting to higher-voltage peripherals |
| P61/KR5/SDAA0/(RxD0) | Port 6 bit 1 / Key Return 5 / I²C Data / UART Receive (remapped) | N-ch open-drain I²C data line with 6 V tolerance - enables robust multi-drop bus operation |
| P121/KR3/X1/(TI03)/(INTP3) | Port 12 bit 1 / Key Return 3 / Crystal Oscillator Input / Timer Input 3 / Interrupt 3 | Primary crystal oscillator input with optional timer capture - supports precision timing and clock recovery |
| P122/KR2/X2/EXCLK/(TI02)/(INTP2) | Port 12 bit 2 / Key Return 2 / Crystal Oscillator Output / External Clock Input / Timer Input 2 / Interrupt 2 | Crystal oscillator output or external clock input - enables external timing source synchronization |
| P125/KR1/SI01/RESET | Port 12 bit 5 / Key Return 1 / SPI Data In / Reset Input | Active-low reset input with internal pull-up - ensures reliable power-on initialization and fault recovery |
| P137/INTP0 | Port 13 bit 7 / Interrupt 0 | Dedicated external interrupt pin with configurable edge sensitivity - ideal for wake-up from STOP mode |
| VDD | Power Supply | Single 1.8–5.5 V supply rail - eliminates need for external regulators in multi-voltage systems |
| VSS | Ground | Reference ground for analog and digital domains - requires low-impedance connection to minimize noise coupling |
Key Features
| Feature | Design Value |
|---|---|
| True low-power platform | 63 μA/MHz active current and sub-μA STOP mode - extends battery life in portable industrial sensors |
| Integrated 2 KB data flash | 1 million write/erase cycles with background operation - replaces external EEPROM in data-logging applications |
| Hardware CRC accelerator | Dedicated CRC calculation engine - offloads checksum computation from CPU for faster firmware validation |
| RAM guard and SFR guard | Memory protection units prevent accidental overwrites of critical variables and peripheral registers |
| Flexible peripheral I/O redirection | PIOR register enables dynamic remapping of UART/CSI/I²C functions to alternate pins - improves PCB layout flexibility |
| Extended temperature grade (G) | Rated for −40°C to +105°C operation - qualified for under-hood automotive and factory-floor environments |
Applications
| Industrial Sensor Node | Smart Thermostat Controller |
|---|---|
Use Scenario: Battery-powered temperature/humidity/pressure sensor node transmitting data via UART to gateway MCU. IC Role / Device Role / Timing Role: Primary system controller executing sensor acquisition, calibration, and serial protocol framing. Use Value: 2 KB data flash stores calibration coefficients and historical logs; 10-bit ADC with internal reference enables accurate ratiometric measurements without external references. |
Use Scenario: Residential HVAC control unit managing relay drivers, display, and user keypad with local decision logic. IC Role / Device Role / Timing Role: Real-time environmental monitoring and actuator coordination using timer-based PWM fan control and key-scan interrupts. Use Value: 4-channel TAU timer delivers precise fan speed regulation; KR inputs support matrix keypad scanning with minimal GPIO usage. |
| Programmable Logic Relay | IoT Edge Gateway Subsystem |
Use Scenario: DIN-rail mounted PLC module implementing discrete I/O control, ladder logic execution, and Modbus RTU communication. IC Role / Device Role / Timing Role: Deterministic real-time controller with UART-based Modbus slave interface and GPIO-driven relay outputs. Use Value: SNOOZE mode enables low-latency wake-up from serial activity; 2 KB code flash accommodates compact runtime interpreter and protocol stack. |
Use Scenario: Local preprocessing unit in wireless gateway aggregating BLE/Zigbee sensor data before forwarding via cellular or Ethernet. IC Role / Device Role / Timing Role: Protocol bridge and data filter between short-range radios and host processor, leveraging multiple serial interfaces. Use Value: Dual CSI and dual simplified I²C channels allow concurrent interfacing with multiple radio modules and sensor hubs without software arbitration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10268GSM#75 | 4 KB code flash, 512 B RAM, same package and peripheral set | Requires larger firmware image and more RAM for complex control algorithms | Select when firmware exceeds 2 KB or additional RAM buffers are needed for communication stacks |
| R5F10367GSM#75 | No data flash, no DMA, no CRC, no RAM/SFR guard, reduced serial interface count (1 CSI, 0 simplified I²C) | Lacks EEPROM emulation and hardware safety features - unsuitable for data-logging or functional-safety-critical use | Choose only for cost-sensitive, low-complexity applications where data retention and peripheral flexibility are non-essential |
Compared with R5F10267GSM#75, R5F10268GSM#75 offers scalable memory for evolving firmware while maintaining identical low-power behavior and pinout; R5F10367GSM#75 sacrifices data flash, DMA, and safety features to reduce cost - making it viable only in non-critical, static-function deployments.
Availability
R5F10267GSM#75 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart thermostat controllers, programmable logic relays, and IoT edge gateway subsystems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R5F10267GSM#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 delivering trusted embedded solutions for automotive, industrial, infrastructure, and IoT markets, with over 40 years of microcontroller innovation.
The RL78/G12 product line targets cost-sensitive, ultra-low-power general-purpose applications - emphasizing energy efficiency, integrated analog peripherals, and rapid development with scalable memory options from 2 KB to 16 KB.
FAQ
What is the maximum operating frequency and corresponding performance of the R5F10267GSM#75?
The R5F10267GSM#75 operates up to 24 MHz using its high-speed on-chip oscillator, delivering 31 DMIPS of processing performance. Its minimum instruction execution time is 0.04167 µs at this frequency, and the CPU supports configurable clock scaling down to 1 MHz for ultra-low-power operation - enabling dynamic performance/power trade-offs in battery-constrained applications.
Does the R5F10267GSM#75 support EEPROM emulation, and how is it implemented?
Yes, the R5F10267GSM#75 includes 2 KB of dedicated data flash memory rated for 1,000,000 write/erase cycles, supporting true EEPROM emulation. It enables background operation (BGO), allowing program execution from code flash while rewriting data flash - essential for logging sensor data or storing configuration parameters without system interruption.
What are the key differences between the R5F10267GSM#75 and the R5F10367GSM#75?
The R5F10267GSM#75 includes 2 KB data flash, DMA controller (2 channels), hardware CRC, RAM/SFR guard, and dual simplified I²C/CSI interfaces - features absent in the R5F10367GSM#75. The latter lacks data flash and safety peripherals, has reduced serial interface count, and is optimized for lower-cost, less complex applications where those capabilities are unnecessary.
Which temperature grade does the R5F10267GSM#75 support, and what does the 'G' suffix indicate?
The 'G' in R5F10267GSM#75 denotes Industrial-grade extended temperature operation from −40°C to +105°C. This qualification ensures reliable functionality in harsh environments such as factory automation equipment, automotive under-hood modules, and outdoor industrial gateways - exceeding standard consumer-grade (A) and industrial-grade (D) limits.
Can the R5F10267GSM#75 operate from a single 1.8 V supply, and what analog features remain functional at that voltage?
Yes, the R5F10267GSM#75 operates across 1.8 V to 5.5 V, and its 10-bit A/D converter remains fully functional at 1.8 V with internal 1.45 V reference - enabling accurate ratiometric measurements even at minimum supply. All digital I/O, timers, and serial interfaces retain specification compliance, supporting true single-supply operation in ultra-low-voltage systems.
R5F10267GSM#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:
- 4KB (4K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 2K x 8
- RAM Size:
- 512 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:
R5F10267GSM#75 FAQ
1.How can I place an order for R5F10267GSM#75 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10267GSM#75 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
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The price and inventory of R5F10267GSM#75 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10267GSM#75 is usually 5 days.
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5.How can I obtain technical support or documentation for R5F10267GSM#75?
For technical support, including R5F10267GSM#75 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10267GSM#75 requirements.
6.How does Aetrix verify that R5F10267GSM#75 is sourced from the original manufacturer or authorized distributors?
All R5F10267GSM#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 R5F10267GSM#75 meets industry standards.
7.What is the process for return or replacement of R5F10267GSM#75?
All R5F10267GSM#75 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10267GSM#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 R5F10267GSM#75 part is unused and in its original packaging.
Return procedure for R5F10267GSM#75:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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