Renesas R5F10269GSM#75
- Part No.:
- R5F10269GSM#75
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 20-LSSOP (0.173", 4.40mm Width)
- Datasheet:
-
R5F10269GSM#75.pdf
- Description:
- 16-BIT GENERAL MCU RL78/G12 12K
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F10269GSM#75 from Renesas is a 20-pin TSSOP ultra-low-power 16-bit RL78/G12 MCU with 12 KB code flash, 2 KB data flash, 768 B RAM, and industrial-grade operation up to +105°C. It integrates an 8/10-bit 11-channel ADC, dual CSI/I²C serial interfaces, UART, 4-channel 16-bit timer, watchdog, and high-accuracy ±1.0% on-chip oscillator - deployed in smart metering, industrial sensor nodes, and battery-powered control systems.
For engineers reviewing the R5F10269GSM#75 datasheet, R5F10269GSM#75 pinout, R5F10269GSM#75 application, or R5F10269GSM#75 equivalent, key selection criteria include its G-grade temperature range (–40°C to +105°C), integrated 2 KB data flash for EEPROM-like wear-leveling, 63 μA/MHz active power, and support for background data flash rewriting during program execution.
Technical Context
The R5F10269GSM#75 implements the RL78 CPU core with 3-stage pipeline CISC architecture, 1 MB address space, and selectable instruction timing (0.04167 μs min @ 24 MHz). Its peripheral set includes two CSI channels, two simplified I²C channels, one UART channel, and DMA controller with two channels - all enabled in HS (high-speed main) mode.
It supports true low-voltage operation from 1.8 V to 5.5 V, features on-chip voltage detector with 12 programmable thresholds, and includes safety functions such as CRC calculation unit, RAM guard, and SFR guard - distinguishing it from R5F103-series parts which omit these features.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC with 3-stage pipeline, 1 MB address space |
| Flash Memory | 12 KB code flash + 2 KB data flash; enables field firmware updates and nonvolatile parameter storage |
| RAM | 768 B on-chip RAM; sufficient for real-time control stacks and small buffers |
| Operating Voltage | 1.8 V to 5.5 V; supports direct interface with 1.8/2.5/3.3 V peripherals without level shifters |
| Temperature Range | –40°C to +105°C (G-grade); qualified for extended industrial environments |
| Power Consumption | 63 μA/MHz active current; HALT/STOP/SNOOZE modes reduce standby to sub-μA levels |
| Oscillator Accuracy | ±1.0% @ –20°C to +85°C; ±2.0% @ +85°C to +105°C - enables precise timing without external crystal |
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 | Multi-function port pin | Configurable as A/D input, programmable clock/buzzer output, SPI clock, or I²C clock |
| P11/ANI17/SI00/RxD0/SDA00/TOOLRxD | Serial data input / UART receive | Primary UART0 RX path; also supports CSI00 data-in and I²C00 data line with tool interface capability |
| P12/ANI18/SO00/TxD0/TOOLTxD | Serial data output / UART transmit | Primary UART0 TX path; also supports CSI00 data-out and I²C00 data line with tool interface capability |
| P13/ANI19/TI00/TO00/INTP2 | Timer input/output / interrupt | Supports capture/compare PWM generation and external interrupt triggering |
| P14/ANI20/TI01/TO01/INTP3 | Timer input/output / interrupt | Dedicated second timer channel with interrupt capability for time-critical event handling |
| P20/ANI0/AVREFP | Analog reference positive | Provides stable reference for internal 8/10-bit ADC; usable as analog input when not used as reference |
| P21/ANI1/AVREFM | Analog reference negative | Completes differential ADC reference pair; also serves as analog input channel ANI1 |
| P22/ANI2 | Analog input | Second dedicated analog input with full 1.8–5.5 V range compatibility |
| P23/ANI3 | Analog input | Third dedicated analog input supporting temperature sensor and internal 1.45 V reference |
| P40/KR0/TOOL0 | Key return / debug interface | Supports capacitive touch key scanning and on-chip debug communication |
| P41/ANI22/SO01/SDA01/TI02/TO02/INTP1 | Multi-function port pin | Enables second CSI/I²C channel and additional timer I/O with interrupt capability |
| P42/ANI21/SCK01/SCL01/TI03/TO03 | Multi-function port pin | Provides clock for second CSI/I²C channel and third timer I/O with interrupt |
| P60/KR4/SCLA0/(TxD0) | I²C clock / alternate UART TX | Primary I²C bus clock line; configurable as UART0 TX via PIOR register |
| P61/KR5/SDAA0/(RxD0) | I²C data / alternate UART RX | Primary I²C bus data line; configurable as UART0 RX via PIOR register |
| P121/KR3/X1/(TI03)/(INTP3) | Crystal input / timer input | Connects to external crystal or ceramic resonator; doubles as timer input or interrupt source |
| P122/KR2/X2/EXCLK/(TI02)/(INTP2) | Crystal output / external clock | Completes crystal oscillator circuit or accepts external clock signal up to 20 MHz |
| P125/KR1/SI01/RESET | Serial input / reset | Primary reset pin with internal pull-up; also supports CSI01 data-in when not in reset state |
| VDD | Power supply | Single 1.8–5.5 V supply; powers entire core, peripherals, and I/O |
| VSS | Ground | Reference ground for analog and digital sections; requires low-impedance connection |
Key Features
| Feature | Design Value |
|---|---|
| 2 KB Data Flash with BGO | Enables background rewriting of nonvolatile parameters while executing application code from main flash |
| G-grade Temperature Range | Rated for continuous operation at –40°C to +105°C - suitable for under-hood automotive and industrial enclosures |
| On-chip CRC Unit | Hardware-accelerated CRC-16/32 computation for firmware integrity checking and communication packet validation |
| RAM & SFR Guard | Prevents accidental overwrites of critical memory regions via hardware-enforced access protection |
| Ultra-Low-Power HALT Mode | Reduces current to 0.52 μA typical with RAM retention - ideal for long-duration wake-on-interrupt applications |
| 11-Channel 8/10-bit ADC | Includes internal 1.45 V reference and temperature sensor; supports simultaneous sampling across multiple channels |
Applications
| Smart Energy Meters | Industrial Sensor Nodes |
|---|---|
Use Scenario: Real-time voltage/current measurement, tariff switching, and secure firmware updates in DIN-rail mounted electricity meters. IC Role / Device Role / Timing Role: Primary system controller managing metrology interface, LCD driver, RS-485 communication, and tamper detection logic. Use Value: Integrated 11-channel ADC with internal reference eliminates external precision references; 2 KB data flash stores calibration coefficients and usage logs with 1M-cycle endurance. | Use Scenario: Battery-powered wireless temperature/humidity/pressure sensing in factory automation or HVAC duct monitoring. IC Role / Device Role / Timing Role: Low-power host MCU acquiring sensor data, performing local preprocessing, and managing BLE/Wi-Fi module sleep/wake cycles. Use Value: 63 μA/MHz active current and sub-μA HALT mode extend battery life beyond 10 years; G-grade rating ensures reliability in uncontrolled ambient conditions. |
| Programmable Logic Controllers (PLC) I/O Modules | Home Appliance Motor Control |
Use Scenario: Digital input/output expansion modules with isolation, diagnostics, and fieldbus interface in modular PLC backplanes. IC Role / Device Role / Timing Role: Dedicated I/O processor handling opto-isolated inputs, relay drivers, status LED control, and CAN/RS-485 protocol stack. Use Value: Dual CSI/I²C interfaces enable local sensor bus management; RAM guard and SFR guard prevent runtime corruption in noisy industrial EMI environments. | Use Scenario: Fan speed regulation, compressor control, and user interface management in inverter-driven air conditioners and refrigerators. IC Role / Device Role / Timing Role: Real-time motor commutation controller with PWM generation, fault monitoring, and human-machine interface coordination. Use Value: Four 16-bit timer channels support independent PWM outputs for multi-phase motor drives; programmable buzzer output simplifies audible feedback without external components. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10268GSM#75 | 8 KB code flash, 2 KB data flash, 512 B RAM - reduced memory footprint | Suitable for simpler control tasks with smaller firmware and fewer runtime variables | Select when application firmware size is < 8 KB and RAM usage remains below 512 B |
| R5F10267GSM#75 | 2 KB code flash, 2 KB data flash, 256 B RAM - minimal configuration | Targeted for ultra-low-cost, deeply embedded functions like basic timers or GPIO sequencers | Choose only for legacy replacement or cost-sensitive designs where flash/RAM headroom is strictly constrained |
Compared with R5F10268GSM#75 and R5F10267GSM#75, the R5F10269GSM#75 provides 50% more code flash than the 8 KB variant and triple the RAM of the 2 KB variant - enabling richer feature sets, larger communication stacks, and extended data logging without external memory.
Availability
R5F10269GSM#75 is available at Aetrix Electronics and suitable for smart energy metering, industrial sensor nodes, and programmable logic controller I/O modules requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for R5F10269GSM#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 applications.
The RL78/G12 product line delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive, battery-operated, and thermally demanding general-purpose control applications - emphasizing energy efficiency, integrated analog, and functional safety readiness.
FAQ
What is the maximum operating temperature specification for the R5F10269GSM#75?
The R5F10269GSM#75 is rated for industrial operation from –40°C to +105°C (G-grade), verified per Renesas datasheet R01DS0193EJ0250 Rev.2.50. This allows deployment in high-ambient environments such as motor control enclosures, outdoor utility equipment, and under-hood automotive subsystems without derating.
Does the R5F10269GSM#75 include on-chip data flash memory, and what is its endurance?
Yes, the R5F10269GSM#75 includes 2 KB of on-chip data flash memory with 1,000,000 write/erase cycles (typical) and background operation support. This enables reliable nonvolatile storage of calibration data, device configuration, and usage logs without external EEPROM - confirmed in Section 1.1 Features and Table 1-1 of the RL78/G12 datasheet.
How many serial communication interfaces does the R5F10269GSM#75 support, and what types are they?
The R5F10269GSM#75 supports three serial interface types: one UART channel, two CSI (Simplified SPI) channels, and two simplified I²C channels - all implemented in its 20-pin TSSOP package. This configuration is explicitly listed in Section 1.7 Outline of Functions for R5F1026x devices and validated in the block diagram on Page 11.
Is the R5F10269GSM#75 pin-compatible with other RL78/G12 20-pin variants like R5F10268GSM#75?
Yes, the R5F10269GSM#75 shares identical pinout, package (PTSP0020JI-A), and electrical characteristics with other R5F1026x-GSM variants including R5F10268GSM#75 and R5F10267GSM#75. All use the same 20-pin TSSOP footprint and function mapping per Figure 1-4 and Table 1-1 in the datasheet.
What safety-related hardware features are integrated into the R5F10269GSM#75?
The R5F10269GSM#75 integrates CRC calculation unit, RAM guard, and SFR guard - hardware features confirmed in Section 1.3.3 Peripheral Functions and Block Diagram (Page 11). These protect against memory corruption and support functional safety requirements in industrial control applications, distinguishing it from R5F103-series parts which omit them.
R5F10269GSM#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:
- 12KB (12K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 2K x 8
- RAM Size:
- 1K 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:
R5F10269GSM#75 FAQ
1.How can I place an order for R5F10269GSM#75 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10269GSM#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 R5F10269GSM#75 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10269GSM#75 is usually 5 days.
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5.How can I obtain technical support or documentation for R5F10269GSM#75?
For technical support, including R5F10269GSM#75 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10269GSM#75 requirements.
6.How does Aetrix verify that R5F10269GSM#75 is sourced from the original manufacturer or authorized distributors?
All R5F10269GSM#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 R5F10269GSM#75 meets industry standards.
7.What is the process for return or replacement of R5F10269GSM#75?
All R5F10269GSM#75 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10269GSM#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 R5F10269GSM#75 part is unused and in its original packaging.
Return procedure for R5F10269GSM#75:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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