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Renesas R5F10269GSP#55
- Part No.:
- R5F10269GSP#55
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 20-LSSOP (0.173", 4.40mm Width)
- Datasheet:
-
R5F10269GSP#55.pdf
- Description:
- IC MCU 16BIT 12KB FLASH 20LSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,990
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Product details
Overview
R5F10269GSP#55 from Renesas is a 20-pin LSSOP ultra-low-power 16-bit RL78/G12 microcontroller 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 TAU timer, and DMA for sensor monitoring and battery-powered control in HVAC actuators, smart meters, and industrial I/O modules.
For engineers reviewing the R5F10269GSP#55 datasheet, R5F10269GSP#55 pinout, R5F10269GSP#55 application, or R5F10269GSP#55 equivalent, key selection criteria include its 12 KB flash with self-programming, 2 KB data flash supporting background rewriting (1M write cycles), ±1.0% high-speed on-chip oscillator accuracy at –40°C to +105°C, and 1.8–5.5 V single-supply operation with HALT/STOP/SNOOZE low-power modes.
Technical Context
The R5F10269GSP#55 implements the RL78 CPU core with 3-stage pipeline CISC architecture, 1 MB address space, and 8×8-bit register banks. Its peripheral set includes two Simplified SPI (CSI) channels, two Simplified I²C channels, one UART channel, and CRC hardware - all confirmed for the R5F1026x 20-pin variant per datasheet Section 1.7.
It operates in HS (high-speed main) mode using either external crystal (1–20 MHz) or internal oscillator (1–24 MHz), with dedicated low-speed on-chip oscillator (15 kHz) for watchdog timing. The device supports peripheral I/O redirection via PIOR register and includes RAM guard, SFR guard, and flash security features exclusive to R5F102 products.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline, 1 MB address space |
| Flash Memory | 12 KB code flash + 2 KB data flash; supports self-programming and background rewriting |
| RAM | 768 B on-chip RAM with RAM guard feature |
| Operating Voltage | 1.8 V to 5.5 V single supply; enables direct interface with 1.8/2.5/3.3 V peripherals |
| Temperature Range | –40°C to +105°C (industrial G-grade); qualified for extended thermal environments |
| ADC | 8/10-bit resolution, 11 input channels, internal 1.45 V reference and temperature sensor |
| Timers | 4-channel 16-bit TAU timer (TO00–TO03), 12-bit interval timer, window watchdog timer |
| Serial Interfaces | 2 × CSI (Simplified SPI), 2 × Simplified I²C, 1 × UART - all confirmed for R5F1026x 20-pin variant |
Pinout & Package
Package: 20-pin plastic LSSOP (4.4 × 6.5 mm, 0.65-mm pitch), RoHS-compliant, tape-and-reel (#55).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/ANI16/PCLBUZ0/SCK00/SCL00 | Port 1 bit 0 / Analog Input 16 / Programmable Clock/Buzzer Output / CSI00 Clock / I²C00 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 / CSI00 Data In / UART0 Receive / I²C00 Data / Debug RX | Shared serial data path for multiple protocols; TOOLRxD enables in-circuit debugging |
| P12/ANI18/SO00/TxD0/TOOLTxD | Port 1 bit 2 / Analog Input 18 / CSI00 Data Out / UART0 Transmit / Debug TX | Enables full-duplex UART or CSI operation; TOOLTxD supports firmware upload via debug interface |
| P13/ANI19/TI00/TO00/INTP2 | Port 1 bit 3 / Analog Input 19 / Timer Input 0 / Timer Output 0 / Interrupt Pin 2 | Configurable for edge-triggered capture, PWM output, or external interrupt sourcing |
| P14/ANI20/TI01/TO01/INTP3 | Port 1 bit 4 / Analog Input 20 / Timer Input 1 / Timer Output 1 / Interrupt Pin 3 | Supports dual-edge timing capture or complementary PWM generation with P13 |
| P20/ANI0/AVREFP | Port 2 bit 0 / Analog Input 0 / ADC Positive Reference | Dedicated analog reference input; must be decoupled for stable ADC performance |
| P21/ANI1/AVREFM | Port 2 bit 1 / Analog Input 1 / ADC Negative Reference | Provides differential reference capability for ratiometric sensor measurements |
| P22/ANI2 | Port 2 bit 2 / Analog Input 2 | General-purpose analog input with internal 1.45 V reference option |
| P23/ANI3 | Port 2 bit 3 / Analog Input 3 | Additional analog channel usable for thermistor or voltage monitoring |
| P40/KR0/TOOL0 | Port 4 bit 0 / Key Return 0 / Debug Interface I/O | Supports key-scan matrix or bidirectional debug communication |
| P41/ANI22/SO01/SDA01/TI02/TO02/INTP1 | Port 4 bit 1 / Analog Input 22 / CSI01 Data Out / I²C01 Data / Timer Input 2 / Timer Output 2 / Interrupt Pin 1 | High-flexibility pin enabling mixed analog/digital/timing functions in compact layouts |
| P42/ANI21/SCK01/SCL01/TI03/TO03 | Port 4 bit 2 / Analog Input 21 / CSI01 Clock / I²C01 Clock / Timer Input 3 / Timer Output 3 | Enables second independent serial interface with synchronized timing control |
| P60/KR4/SCLA0/(TxD0) | Port 6 bit 0 / Key Return 4 / I²C00 Clock / UART0 Transmit (remappable) | N-ch open-drain I/O with 6 V tolerance; supports I²C bus pull-up and level-shifting |
| P61/KR5/SDAA0/(RxD0) | Port 6 bit 1 / Key Return 5 / I²C00 Data / UART0 Receive (remappable) | N-ch open-drain I/O with 6 V tolerance; compatible with standard I²C voltage levels |
| P121/KR3/X1/(TI03)/(INTP3) | Port 12 bit 1 / Key Return 3 / Crystal Oscillator Input / Timer Input 3 / Interrupt Pin 3 | Primary crystal connection point; supports external 1–20 MHz resonator for precise timing |
| P122/KR2/X2/EXCLK/(TI02)/(INTP2) | Port 12 bit 2 / Key Return 2 / Crystal Oscillator Output / External Clock Input / Timer Input 2 / Interrupt Pin 2 | Completes crystal circuit or accepts external clock source; enables clock redundancy |
| P125/KR1/SI01/RESET | Port 12 bit 5 / Key Return 1 / CSI01 Data In / Reset Input | Active-low reset pin with internal pull-up; also serves as serial data input when not in reset |
| P137/INTP0 | Port 13 bit 7 / Interrupt Pin 0 | Dedicated external interrupt input with configurable edge sensitivity |
| VDD | Power Supply | 1.8–5.5 V main supply; powers all digital and analog blocks including ADC and oscillators |
| VSS | Ground | Reference ground for all I/O, analog, and power domains; requires low-impedance PCB connection |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power consumption | 63 μA/MHz active current; HALT/STOP/SNOOZE modes reduce leakage to sub-μA levels |
| Data flash with background operation | 2 KB data flash supports BGO: CPU executes from code flash while rewriting data flash |
| Hardware safety functions | CRC calculation unit, RAM guard, and SFR guard prevent memory corruption in safety-critical tasks |
| High-accuracy internal oscillator | ±1.0% frequency accuracy over –40°C to +105°C enables crystal-free operation in many applications |
| Flexible peripheral routing | Peripheral I/O redirection register (PIOR) allows dynamic remapping of serial, timer, and interrupt functions |
| Analog subsystem integration | 11-channel ADC with internal reference, temperature sensor, and AVREFP/AVREFM inputs simplifies sensor front-end design |
Applications
| Smart Thermostat Control | Industrial Power Monitor |
|---|---|
Use Scenario: Local temperature/humidity sensing and HVAC actuator control in residential and commercial thermostats. IC Role / Device Role / Timing Role: Main system controller executing PID algorithms, managing display, reading NTC sensors via 11-channel ADC, and driving relays via GPIO/PWM. Use Value: 12 KB flash stores complex control logic and calibration tables; 2 KB data flash retains user preferences and energy usage logs across power cycles. | Use Scenario: Real-time monitoring of AC line voltage, current, and power factor in DIN-rail mounted energy meters. IC Role / Device Role / Timing Role: Signal acquisition controller interfacing with isolation amplifiers and shunt resistors, performing RMS calculations, and communicating via UART/I²C to host MCU. Use Value: ±1.0% oscillator accuracy ensures precise 50/60 Hz sampling intervals; 1.8–5.5 V operation accommodates wide-input auxiliary power supplies. |
| Wireless Sensor Node | Programmable Logic Controller I/O Module |
Use Scenario: Battery-powered environmental sensor node transmitting data via BLE or Sub-GHz RF transceiver. IC Role / Device Role / Timing Role: Low-power sensor hub collecting data from analog sensors and digital I²C peripherals, then waking RF IC for periodic transmission. Use Value: SNOOZE mode reduces average current to <10 μA during sleep; 2 KB data flash stores sensor history without external EEPROM. | Use Scenario: Modular digital input/output expansion for small PLCs handling discrete signals in factory automation. IC Role / Device Role / Timing Role: Isolated I/O processor managing optocoupler inputs, driving MOSFET outputs, and reporting status via RS-485 interface. Use Value: 20-pin LSSOP fits compact carrier boards; 11-channel ADC monitors supply rails and temperature for predictive maintenance alerts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10268GSP#55 | 4 KB code flash, 2 KB data flash, 512 B RAM - reduced program storage and memory | Suitable for simpler control tasks without complex UI or data logging | Select when application firmware size is under 4 KB and no background data logging is required |
| R5F10267GSP#55 | 2 KB code flash, 2 KB data flash, 256 B RAM - minimal configuration with same industrial temp grade | Targeted at ultra-low-cost, function-limited embedded controllers | Choose for basic sensor readout or relay control where flash footprint is under 2 KB |
Compared with R5F10268GSP#55 and R5F10267GSP#55, the R5F10269GSP#55 provides 3× and 6× more code flash respectively, enabling richer firmware features like OTA update support, multi-sensor fusion, and extended diagnostics - critical for field-deployed industrial devices requiring long-term maintainability.
Availability
R5F10269GSP#55 is available at Aetrix Electronics and suitable for smart thermostat control, industrial power monitoring, wireless sensor nodes, and programmable logic controller I/O modules requiring stable component supply and industrial-temperature reliability.
Supply support for R5F10269GSP#55 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 industrial control applications requiring robust analog integration and extended temperature operation.
FAQ
What is the maximum operating temperature range supported by the R5F10269GSP#55?
The R5F10269GSP#55 is rated for industrial-grade operation from –40°C to +105°C, as indicated by the "G" suffix in its part number. This makes it suitable for deployment in harsh environments such as motor control enclosures, outdoor metering equipment, and factory-floor automation systems where ambient temperatures exceed +85°C. The device maintains full functionality-including 12 KB flash access, 2 KB data flash rewriting, and ADC accuracy-across this full range.
Does the R5F10269GSP#55 support background data flash rewriting while executing code from main flash?
Yes, the R5F10269GSP#55 supports Background Operation (BGO) for its 2 KB data flash memory. During BGO, the CPU continues executing instructions from code flash while the data flash is being rewritten-enabling uninterrupted real-time operation. This capability is confirmed in the RL78/G12 datasheet (R01DS0193EJ0250, Section 1.1) and is essential for applications requiring persistent parameter storage without service interruption, such as firmware configuration updates or energy usage logging in smart meters.
How many serial communication interfaces does the R5F10269GSP#55 include, and what types are they?
The R5F10269GSP#55 includes two Simplified SPI (CSI) channels, two Simplified I²C channels, and one UART channel-all confirmed for the R5F1026x 20-pin variant in Section 1.7 of the datasheet. These interfaces share pins via peripheral I/O redirection (PIOR), allowing flexible allocation. Unlike R5F103 variants, the R5F10269GSP#55 retains full CSI/I²C dual-channel support and includes hardware CRC, making it ideal for multi-sensor systems requiring concurrent communication with I²C temperature sensors and SPI pressure transducers.
What low-power modes are available on the R5F10269GSP#55, and how do they impact current consumption?
The R5F10269GSP#55 offers HALT, STOP, and SNOOZE low-power modes. In HALT mode, the CPU stops but peripherals remain active; STOP mode disables the high-speed oscillator and most peripherals, reducing current to ~0.5 μA; SNOOZE mode keeps the ADC and serial interfaces operational while the CPU sleeps, enabling wake-on-event with sub-10 μA average current. These modes are integral to its 63 μA/MHz active efficiency and enable battery life extension in wireless sensor nodes and portable instrumentation using the R5F10269GSP#55.
Is the R5F10269GSP#55 pin-compatible with other RL78/G12 20-pin variants such as the R5F10268GSP#55?
Yes, the R5F10269GSP#55 is pin-compatible with all RL78/G12 20-pin LSSOP variants including R5F10268GSP#55 and R5F10267GSP#55. They share identical pin count, pitch (0.65 mm), mechanical dimensions (4.4 × 6.5 mm), and pinout configuration per Figure 1-4 in the datasheet. This allows direct substitution in existing PCB designs when upgrading firmware capacity or memory-no layout changes are required. However, functional differences (e.g., flash size, RAM) must be validated in software.
R5F10269GSP#55 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:
- 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:
- 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:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F10269GSP#55 FAQ
1.How can I place an order for R5F10269GSP#55 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10269GSP#55 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 R5F10269GSP#55 reliable?
The price and inventory of R5F10269GSP#55 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10269GSP#55 is usually 5 days.
3.What payment methods are accepted for R5F10269GSP#55?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10269GSP#55 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10269GSP#55?
R5F10269GSP#55 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10269GSP#55 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 R5F10269GSP#55?
For technical support, including R5F10269GSP#55 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10269GSP#55 requirements.
6.How does Aetrix verify that R5F10269GSP#55 is sourced from the original manufacturer or authorized distributors?
All R5F10269GSP#55 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 R5F10269GSP#55 meets industry standards.
7.What is the process for return or replacement of R5F10269GSP#55?
All R5F10269GSP#55 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10269GSP#55, 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 R5F10269GSP#55 part is unused and in its original packaging.
Return procedure for R5F10269GSP#55:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F10269GSP#55 Tags
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