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Renesas R5F10269ASM#75
- Part No.:
- R5F10269ASM#75
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 20-LSSOP (0.173", 4.40mm Width)
- Datasheet:
-
R5F10269ASM#75.pdf
- Description:
- 16-BIT GENERAL MCU RL78/G12 12K
- Quantity:
- Payment:
- Shipping:
Inventory:4,525
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Product details
Overview
R5F10269ASM#75 from Renesas Electronics is a 20-pin RL78/G12 16-bit microcontroller with 12 KB code flash, 2 KB data flash, and 768 B RAM, operating at 1.8–5.5 V and delivering 31 DMIPS at 24 MHz. It integrates an ultra-low-power CPU core (63 μA/MHz), 10-bit 11-channel ADC, dual CSI/I²C serial interfaces, UART, 4-channel 16-bit TAU timer, and on-chip debug - deployed in battery-powered sensor nodes and industrial control panels.
For engineers reviewing the R5F10269ASM#75 datasheet, R5F10269ASM#75 pinout, R5F10269ASM#75 application, or R5F10269ASM#75 equivalent, key selection criteria include its 2 KB data flash with background operation, ±1.0% high-speed on-chip oscillator accuracy over –20 to +85°C, TSSOP-20 package with 18 I/O pins (including 2× 6-V-tolerant N-ch open-drain), and support for HALT/STOP/SNOOZE low-power modes.
Technical Context
The R5F10269ASM#75 implements the RL78 CISC CPU core with 3-stage pipeline and 1 MB address space, executing instructions in 0.04167 μs minimum (at 24 MHz HS-oscillator). Its peripheral set includes two CSI channels (SPI-compatible), two simplified I²C channels, one UART channel, and CRC hardware acceleration - all enabled only in R5F102-series devices per family documentation.
Power management integrates POR, LVD (12 selectable thresholds), and three low-power modes (HALT, STOP, SNOOZE); the 15 kHz low-speed on-chip oscillator enables watchdog and interval timer operation during STOP mode. The device supports self-programming of code flash and background rewriting of 2 KB data flash (1M rewrite cycles, 1.8–5.5 V operation).
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-backed operation |
| Flash Memory | 12 KB code flash + 2 KB data flash - supports secure block erase prohibition and background rewriting (BGO) |
| CPU Performance | 31 DMIPS at 24 MHz; 0.04167 μs min instruction time - suitable for real-time control loops under 32 μs latency |
| ADC | 10-bit resolution, 11 input channels, internal 1.45 V reference and temperature sensor - eliminates external reference for cost-sensitive sensing |
| Low-Power Modes | HALT (RAM retention), STOP (full clock stop), SNOOZE (peripheral wake-up while CPU halted) - achieves 63 μA/MHz active current |
| Oscillator Accuracy | ±1.0% @ –20 to +85°C (HS on-chip oscillator) - meets timing requirements for UART communication without external crystal |
Pinout & Package
TSSOP-20 package (4.4 × 6.5 mm, 0.65-mm pitch), JEDEC MS-013AC compliant, lead-free and RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power supply | Primary 1.8–5.5 V supply rail; decoupling required per layout guidelines |
| VSS | Ground | Digital ground reference; must be connected to system GND plane |
| P10/ANI16/PCLBUZ0/SCK00/SCL00 | Multi-function port pin | Configurable as SPI clock, I²C clock, buzzer output, or analog input - enables shared signal routing |
| P11/ANI17/SI00/RxD0/SDA00/TOOLRxD | Multi-function port pin | Supports SPI data-in, UART receive, I²C data, and debug RX - reduces pin count for mixed-interface designs |
| P12/ANI18/SO00/TxD0/TOOLTxD | Multi-function port pin | Provides SPI data-out, UART transmit, I²C data, and debug TX - enables single-pin debug/communication fallback |
| P13/ANI19/TI00/TO00/INTP2 | Timer I/O + interrupt | Input capture, PWM output, or external interrupt source - supports motor control edge detection and pulse generation |
| P14/ANI20/TI01/TO01/INTP3 | Timer I/O + interrupt | Dedicated second timer channel for independent timing or synchronized PWM pairs |
| P20/ANI0/AVREFP | Analog reference + input | Positive analog reference input and primary ADC channel - allows ratiometric measurement with external sensors |
| P21/ANI1/AVREFM | Analog reference + input | Negative analog reference input and secondary ADC channel - supports differential analog front-end configurations |
| P22/ANI2 | Analog input | Third dedicated ADC input - used for auxiliary sensor monitoring (e.g., temperature, voltage scaling) |
| P23/ANI3 | Analog input | Fourth dedicated ADC input - extends analog monitoring without external multiplexer |
| P40/KR0/TOOL0 | Debug I/O / key return | Single-wire debug interface and keypad scan input - enables in-system programming and user interface integration |
| P41/ANI22/SO01/SDA01/TI02/TO02/INTP1 | Multi-function port pin | Second SPI/I²C data line with timer and interrupt capability - supports dual serial buses or timer-triggered transfers |
| P42/ANI21/SCK01/SCL01/TI03/TO03 | Multi-function port pin | Second SPI/I²C clock line with timer I/O - enables synchronous slave communication or precision timing outputs |
| P60/KR4/SCLA0/(TxD0) | I²C clock / UART TX | Alternate I²C clock or UART transmit - provides pin-reuse flexibility for protocol switching |
| P61/KR5/SDAA0/(RxD0) | I²C data / UART RX | Alternate I²C data or UART receive - allows dual-role I²C bus or UART fallback path |
| P121/KR3/X1/(TI03)/(INTP3) | Clock input / timer input | Crystal oscillator input or external event counter - supports precise timing or external synchronization |
| P122/KR2/X2/EXCLK/(TI02)/(INTP2) | Clock input / timer input | Secondary crystal input or external clock source - enables redundant clocking or frequency measurement |
| P125/KR1/SI01/RESET | Serial input / reset | Hardware reset input with SPI data-in function - ensures safe startup and enables firmware recovery via SPI |
| P137/INTP0 | External interrupt | Dedicated interrupt pin for fast response to critical events (e.g., fault detection, emergency stop) |
Key Features
| Feature | Design Value |
|---|---|
| 2 KB data flash with BGO | Enables firmware updates or logging while executing application code - no CPU stall during flash writes |
| ±1.0% HS oscillator accuracy | Eliminates need for external crystal in UART-based communication up to 115.2 kbps at 24 MHz |
| 18 GPIO with 2× 6-V-tolerant pins | Direct interface with legacy 5 V peripherals without level shifters - reduces BOM and board area |
| CRC hardware accelerator | Offloads checksum calculation from CPU - improves data integrity verification speed by >10× vs software CRC |
| SNOOZE mode with peripheral wake-up | Allows UART or timer events to resume CPU operation without full restart - cuts average power in polling applications |
| On-chip voltage detector (12 levels) | Configurable brown-out detection from 1.88 V to 4.06 V - prevents erratic behavior during battery discharge |
Applications
| Smart Home Sensor Hub | Industrial Motor Control Panel |
|---|---|
Use Scenario: Compact wireless node aggregating temperature, humidity, and motion data for BLE/Wi-Fi gateway forwarding. IC Role / Device Role / Timing Role: Primary MCU managing multi-sensor ADC sampling, UART-to-BLE bridge, and low-power scheduling. Use Value: 12 KB flash hosts sensor fusion algorithm and BLE stack; 2 KB data flash logs calibration offsets; SNOOZE mode extends coin-cell life to >2 years. |
Use Scenario: Local controller for 3-phase inverter drives with current sensing, thermal monitoring, and fault reporting. IC Role / Device Role / Timing Role: Real-time motor timing engine synchronizing PWM outputs, ADC sampling, and safety interlocks. Use Value: 4-channel TAU timer generates precise complementary PWM; 11-channel ADC samples phase currents and heatsink thermistors simultaneously; ±1.0% oscillator ensures UART comms with PLC master. |
| Medical Wearable Monitor | Automotive Body Control Module (BCM) |
Use Scenario: Disposable patch measuring ECG, skin temperature, and motion for remote patient telemetry. IC Role / Device Role / Timing Role: Ultra-low-power signal acquisition and preprocessing unit interfacing with analog front-end and RF transceiver. Use Value: 63 μA/MHz active current and STOP mode (0.52 μA) enable 7-day runtime on CR2032; integrated temperature sensor validates sensor health without extra components. |
Use Scenario: Door module controlling window lift, mirror adjustment, and interior lighting with LIN bus diagnostics. IC Role / Device Role / Timing Role: LIN slave node handling command parsing, PWM dimming, and GPIO actuation with fault logging. Use Value: 2 KB data flash stores LIN configuration and error counters; 18 GPIO drive relays and LEDs directly; 1.8–5.5 V range tolerates automotive battery transients (4.5–16 V with external regulator). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10268ASM#75 | 8 KB code flash, 2 KB data flash, 512 B RAM - same package and peripheral set | Lower memory footprint suits simpler sensor nodes or bootloader-only use cases | Select when application code size is < 8 KB and cost sensitivity outweighs future firmware headroom |
| R5F10267ASM#75 | 2 KB code flash, 2 KB data flash, 256 B RAM - same package and peripheral set | Minimal configuration for ultra-low-cost, fixed-function controllers (e.g., LED sequencers, basic timers) | Choose only for deeply embedded, static-function designs where flash expansion is unnecessary |
Compared with R5F10268ASM#75 and R5F10267ASM#75, the R5F10269ASM#75 provides 50% more code flash than the 8 KB variant and triple the RAM of the 2 KB variant - enabling richer firmware features, larger protocol stacks, and dynamic data buffering without external memory.
Availability
R5F10269ASM#75 is available at Aetrix Electronics and suitable for smart home sensor hubs, industrial motor control panels, medical wearable monitors, and automotive body control modules requiring stable component supply across production lifecycles.
Supply support for R5F10269ASM#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 is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and IoT markets.
The RL78/G12 product line delivers true low-power 16-bit MCUs optimized for cost-sensitive, battery-operated, and industrial control applications - balancing performance, integration, and energy efficiency.
FAQ
What is the maximum operating frequency and corresponding DMIPS rating for the R5F10269ASM#75?
The R5F10269ASM#75 operates at up to 24 MHz using its high-speed on-chip oscillator and delivers 31 DMIPS at that frequency. This performance level is confirmed in the RL78/G12 datasheet (R01DS0193EJ0250 Rev.2.50, Page 1) and reflects its 3-stage pipeline CISC architecture optimized for deterministic real-time execution.
Does the R5F10269ASM#75 support background data flash rewriting while executing application code?
Yes, the R5F10269ASM#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 - essential for non-disruptive firmware updates or runtime parameter logging without halting application logic.
What are the key differences between the R5F10269ASM#75 and the R5F10369ASM#75?
The R5F10269ASM#75 includes 2 KB data flash, DMA controller (2 channels), CRC hardware, RAM guard, and SFR guard - features absent in the R5F10369ASM#75. Additionally, the R5F10269ASM#75 offers ±1.0% oscillator accuracy versus ±5.0% for the R5F10369ASM#75, making it suitable for higher-precision timing applications.
Which package type and pin count does the R5F10269ASM#75 use?
The R5F10269ASM#75 uses a 20-pin TSSOP package (4.4 × 6.5 mm, 0.65-mm pitch), identified by the "SM" suffix in its part number. It provides 18 general-purpose I/O pins, including two 6-V-tolerant N-ch open-drain outputs, and is JEDEC MS-013AC compliant.
Can the R5F10269ASM#75 operate from a 1.8 V supply and still run its 24 MHz oscillator?
No - the R5F10269ASM#75's high-speed on-chip oscillator supports up to 24 MHz only when VDD is ≥ 2.7 V. At 1.8 V, the maximum supported oscillator frequency is 8 MHz (LS mode). Full 24 MHz operation requires VDD ≥ 2.7 V, as specified in the RL78/G12 datasheet Section 1.7.
R5F10269ASM#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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F10269ASM#75 FAQ
1.How can I place an order for R5F10269ASM#75 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10269ASM#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 R5F10269ASM#75 reliable?
The price and inventory of R5F10269ASM#75 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10269ASM#75 is usually 5 days.
3.What payment methods are accepted for R5F10269ASM#75?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10269ASM#75 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10269ASM#75?
R5F10269ASM#75 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10269ASM#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 R5F10269ASM#75?
For technical support, including R5F10269ASM#75 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10269ASM#75 requirements.
6.How does Aetrix verify that R5F10269ASM#75 is sourced from the original manufacturer or authorized distributors?
All R5F10269ASM#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 R5F10269ASM#75 meets industry standards.
7.What is the process for return or replacement of R5F10269ASM#75?
All R5F10269ASM#75 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10269ASM#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 R5F10269ASM#75 part is unused and in its original packaging.
Return procedure for R5F10269ASM#75:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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