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Renesas R5F10369ASM#35
- Part No.:
- R5F10369ASM#35
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 20-LSSOP (0.173", 4.40mm Width)
- Datasheet:
-
R5F10369ASM#35.pdf
- Description:
- IC MCU 16BIT 12KB FLASH 20LSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,900
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Product details
Overview
R5F10369ASM#35 from Renesas Electronics is a 20-pin RL78/G12 16-bit microcontroller designed for ultra-low-power embedded control in consumer-grade applications (–40°C to +85°C). It features 12 KB code flash, 768 B RAM, 10-bit A/D converter with 8 channels, 1-channel UART, and 4-channel 16-bit timer - all operating from a single 1.8–5.5 V supply at up to 24 MHz.
For engineers reviewing the R5F10369ASM#35 datasheet, R5F10369ASM#35 pinout, R5F10369ASM#35 application, or R5F10369ASM#35 equivalent, key selection considerations include its TSSOP20 package, absence of data flash memory, reduced peripheral count versus R5F102 variants, and suitability for cost-sensitive, battery-powered sensor nodes and appliance controls requiring deterministic real-time response.
Technical Context
The R5F10369ASM#35 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting minimum instruction execution time of 0.04167 µs at 24 MHz using the high-speed on-chip oscillator. Its clock system integrates selectable internal oscillators (1–24 MHz) with ±5.0% accuracy over –40°C to +85°C, and supports external crystal input via X1/X2 pins.
Peripheral integration includes one UART channel, one simplified SPI (CSI) channel, no simplified I²C, and no DMA controller - distinguishing it from R5F102-series counterparts. The device lacks CRC, RAM guard, and SFR guard safety functions, and uses a dedicated low-speed on-chip oscillator (15 kHz TYP) for watchdog timer operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline; enables deterministic 31 DMIPS @ 24 MHz |
| Code Flash / RAM | 12 KB flash / 768 B RAM; sufficient for compact firmware with limited data buffering |
| Operating Voltage | 1.8–5.5 V single supply; supports direct Li-ion battery or 3.3/5 V rail without level shifting |
| A/D Converter | 10-bit resolution, 8 input channels, internal 1.45 V reference; suitable for analog sensor interfacing |
| Timer Resources | 4-channel 16-bit timer (TAU0), 1-channel 12-bit interval timer, 1-window watchdog; enables PWM, capture, and periodic wake-up |
| Serial Interfaces | 1 UART, 1 CSI (SPI-compatible), no I²C; adequate for host MCU communication or simple sensor bridging |
| Power Modes | HALT, STOP, SNOOZE; achieves 63 μA/MHz active current for extended battery life |
Pinout & Package
TSSOP20 plastic package (4.4 × 6.5 mm, 0.65-mm pitch), RoHS-compliant, surface-mountable with standard reflow profile.
| 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 configurable as UART clock source, buzzer driver, or serial interface clock |
| P11/ANI17/SI00/RxD0/SDA00/TOOLRxD | Port 1 bit 1 / Analog Input 17 / SPI Input / UART Receive / I²C Data / Debug RX | Primary UART receive path; also serves as SPI data input and debug interface input |
| P12/ANI18/SO00/TxD0/TOOLTxD | Port 1 bit 2 / Analog Input 18 / SPI Output / UART Transmit / Debug TX | Dedicated UART transmit line with simultaneous SPI output capability and debug output |
| P13/ANI19/TI00/TO00/INTP2 | Port 1 bit 3 / Analog Input 19 / Timer Input 0 / Timer Output 0 / Interrupt 2 | Configurable as edge-triggered timer input, PWM output, or external interrupt source |
| P14/ANI20/TI01/TO01/INTP3 | Port 1 bit 4 / Analog Input 20 / Timer Input 1 / Timer Output 1 / Interrupt 3 | Second timer I/O pair supporting capture/compare and interrupt-driven event handling |
| P20/ANI0/AVREFP | Port 2 bit 0 / Analog Input 0 / A/D Positive Reference | Analog input channel 0 with dedicated positive reference voltage terminal |
| P21/ANI1/AVREFM | Port 2 bit 1 / Analog Input 1 / A/D Negative Reference | Analog input channel 1 with dedicated negative reference voltage terminal |
| P22/ANI2 | Port 2 bit 2 / Analog Input 2 | Dedicated analog input for temperature sensor or external signal conditioning |
| P23/ANI3 | Port 2 bit 3 / Analog Input 3 | Additional analog input supporting differential measurement with AVREFP/M |
| P40/KR0/TOOL0 | Port 4 bit 0 / Key Return 0 / Debug Interface | Supports key matrix scanning and in-circuit debugging via TOOL interface |
| P41/ANI22/SO01/SDA01/TI02/TO02/INTP1 | Port 4 bit 1 / Analog Input 22 / SPI Output / I²C Data / Timer Input 2 / Timer Output 2 / Interrupt 1 | High-flexibility 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 input/output and analog input capability |
| P60/KR4/SCLA0/(TxD0) | Port 6 bit 0 / Key Return 4 / I²C Clock / UART Transmit (remapped) | N-ch open-drain I/O with 6 V tolerance; usable as I²C clock or remapped UART TX |
| P61/KR5/SDAA0/(RxD0) | Port 6 bit 1 / Key Return 5 / I²C Data / UART Receive (remapped) | N-ch open-drain I/O with 6 V tolerance; usable as I²C data or remapped UART RX |
| P121/KR3/X1/(TI03)/(INTP3) | Port 12 bit 1 / Key Return 3 / Crystal Input / Timer Input 3 / Interrupt 3 | Primary crystal oscillator input; also supports timer input or interrupt function |
| P122/KR2/X2/EXCLK/(TI02)/(INTP2) | Port 12 bit 2 / Key Return 2 / Crystal Output / External Clock / Timer Input 2 / Interrupt 2 | Crystal oscillator output or external clock input; dual-use for timing and interrupt |
| P125/KR1/SI01/RESET | Port 12 bit 5 / Key Return 1 / SPI Input / Reset Input | Active-low hardware reset pin with integrated pull-up; also serves as SPI data input |
| 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; must be low-impedance connection |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power consumption | 63 μA/MHz active current enables multi-year battery life in portable sensors |
| On-chip high-speed oscillator | 24 MHz internal clock with ±5.0% accuracy eliminates need for external crystal in non-timing-critical apps |
| Hardware debug support | Integrated on-chip debug circuit enables full SWD-based programming and real-time trace without external JTAG pod |
| Self-programmable flash | Code flash supports in-application reprogramming via flash shield window function for firmware updates |
| Multi-voltage I/O compatibility | I/O ports tolerate 1.8/2.5/3.3 V logic levels, simplifying interface with mixed-voltage peripherals |
| Temperature sensor | On-die temperature sensor provides system thermal monitoring without external components |
Applications
| Smart Home Sensors | Industrial Control Panels |
|---|---|
Use Scenario: Battery-powered occupancy, temperature, and humidity sensing nodes in HVAC systems. IC Role / Device Role / Timing Role: Main controller executing sensor acquisition, local decision logic, and UART-based reporting to gateway. Use Value: 63 μA/MHz active current and STOP mode extend coin-cell life beyond 5 years; 8-channel A/D supports multi-sensor fusion. | Use Scenario: Front-panel interface for PLCs and motor drives with LED indicators, pushbuttons, and status displays. IC Role / Device Role / Timing Role: Dedicated UI controller managing key scan, buzzer feedback, display update timing, and serial command parsing. Use Value: Integrated PCLBUZ0 output drives audible alerts directly; KR0–KR5 key return inputs reduce external debounce circuitry. |
| White Goods Appliance Controls | Medical Diagnostic Handhelds |
Use Scenario: Motor speed regulation and user interface in washing machines and dishwashers. IC Role / Device Role / Timing Role: Real-time motor commutation timing via TO00–TO03 outputs and analog feedback sampling via ANI0–ANI3. Use Value: 4-channel 16-bit timer with PWM output enables precise BLDC control; 1.8–5.5 V operation interfaces directly with 3.3 V MCU supervisors. | Use Scenario: Portable blood glucose meters and pulse oximeters requiring low-power analog front-end and USB/UART connectivity. IC Role / Device Role / Timing Role: Signal conditioning, ADC management, calibration storage, and host communication via UART. Use Value: On-chip 1.45 V A/D reference ensures stable conversion across battery discharge; internal temperature sensor enables automatic gain correction. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10269ASM#35 | Includes 2 KB data flash, DMA controller, CRC, RAM/SFR guard, ±1.0% oscillator accuracy | Required for field-upgradable firmware with background data logging or safety-certified designs | Select when persistent non-volatile parameter storage or functional safety features are mandatory |
| R5F10368ASM#35 | 4 KB code flash, 512 B RAM, identical peripheral set and package | Suitable for simpler firmware with lower memory footprint and cost-sensitive volume production | Choose when application firmware fits within 4 KB and BOM cost reduction is primary objective |
Compared with R5F10269ASM#35, the R5F10369ASM#35 omits data flash and safety peripherals to reduce cost and power, while retaining identical pinout and core performance; versus R5F10368ASM#35, it delivers 3× more flash and 50% more RAM for enhanced feature scalability without layout change.
Availability
R5F10369ASM#35 is available at Aetrix Electronics and suitable for smart home sensors, industrial control panels, and white goods appliance controls requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.
Supply support for R5F10369ASM#35 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 targets cost-sensitive, ultra-low-power general-purpose control applications - emphasizing energy efficiency, integrated analog peripherals, and rapid development with minimal external components.
FAQ
What is the maximum operating frequency and corresponding instruction throughput of the R5F10369ASM#35?
The R5F10369ASM#35 operates at up to 24 MHz using its high-speed on-chip oscillator, delivering 31 DMIPS (Dhrystone MIPS) performance. At this frequency, the minimum instruction execution time is 0.04167 µs. The device supports lower frequencies (1–16 MHz) under reduced VDD conditions and can drop to 1 MHz for ultra-low-power operation with 1 µs instruction time.
Does the R5F10369ASM#35 include data flash memory, and how does that affect firmware design?
No, the R5F10369ASM#35 does not include data flash memory - unlike the R5F10269ASM#35 variant. This means non-volatile parameter storage must be implemented externally (e.g., EEPROM or SPI flash) or use code flash sectors with careful wear-leveling. Firmware updates require full code flash reprogramming, and runtime data logging is not supported on-chip.
Which serial communication interfaces are available on the R5F10369ASM#35, and are they pin-compatible with other RL78/G12 devices?
The R5F10369ASM#35 provides one UART channel, one simplified SPI (CSI) channel, and no simplified I²C interface. Its TSSOP20 pinout matches other R5F103xxASM devices, ensuring mechanical and electrical compatibility. However, R5F102xxASM variants offer additional CSI and simplified I²C channels on shared pins - those functions are disabled in the R5F10369ASM#35.
What power-saving modes does the R5F10369ASM#35 support, and what is typical current draw in STOP mode?
The R5F10369ASM#35 supports HALT, STOP, and SNOOZE modes. In STOP mode (with low-speed oscillator running), typical current consumption is 0.52 µA at 3.3 V and 25°C. The device retains RAM content and wakes via external interrupt, RTC alarm, or LVD event - making it ideal for infrequent-event sensing applications.
Can the R5F10369ASM#35 drive a piezoelectric buzzer directly, and what is the output capability of the PCLBUZ0 pin?
Yes, the R5F10369ASM#35 can drive a piezoelectric buzzer directly using the PCLBUZ0 pin (P10), which is part of the buzzer/clock output controller. This pin supports programmable frequencies from 2.44 kHz to 10 MHz (at fMAIN = 20 MHz), with CMOS-level output capable of sourcing/sinking up to 40 mA per pin - sufficient for most common piezo elements without external drivers.
R5F10369ASM#35 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 20-LSSOP (0.173", 4.40mm Width)
- Series:
- RL78/G12
- Packaging:
- Tray
- Product Status:
- Last Time Buy
- Programmable:
- -
- Core Processor:
- RL78
- Core Size:
- 16-Bit
- Speed:
- 24MHz
- Connectivity:
- CSI, I2C, UART/USART
- Peripherals:
- LVD, POR, PWM, WDT
- Number of I/O:
- 14
- Program Memory Size:
- 12KB (12K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- 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:
R5F10369ASM#35 FAQ
1.How can I place an order for R5F10369ASM#35 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10369ASM#35 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 R5F10369ASM#35 reliable?
The price and inventory of R5F10369ASM#35 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10369ASM#35 is usually 5 days.
3.What payment methods are accepted for R5F10369ASM#35?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10369ASM#35 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10369ASM#35?
R5F10369ASM#35 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10369ASM#35 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 R5F10369ASM#35?
For technical support, including R5F10369ASM#35 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10369ASM#35 requirements.
6.How does Aetrix verify that R5F10369ASM#35 is sourced from the original manufacturer or authorized distributors?
All R5F10369ASM#35 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 R5F10369ASM#35 meets industry standards.
7.What is the process for return or replacement of R5F10369ASM#35?
All R5F10369ASM#35 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10369ASM#35, 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 R5F10369ASM#35 part is unused and in its original packaging.
Return procedure for R5F10369ASM#35:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F10369ASM#35 Tags
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