Renesas R5F10369ASM#75
- Part No.:
- R5F10369ASM#75
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 20-LSSOP (0.173", 4.40mm Width)
- Datasheet:
-
R5F10369ASM#75.pdf
- Description:
- 16-BIT GENERAL MCU RL78/G12 12K
- Quantity:
- Payment:

- Shipping:

Inventory:4,060
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Product details
Overview
R5F10369ASM#75 from Renesas Electronics is a 20-pin RL78/G12 16-bit microcontroller designed for ultra-low-power general-purpose embedded control, featuring 12 KB code flash, 768 B RAM, 1.8–5.5 V operation, and 31 DMIPS at 24 MHz - deployed in battery-powered sensor nodes and industrial HMI panels.
For engineers reviewing the R5F10369ASM#75 datasheet, R5F10369ASM#75 pinout, R5F10369ASM#75 application, or R5F10369ASM#75 equivalent, key selection criteria include its TSSOP-20 package, absence of data flash memory, single UART channel, no DMA support, and ±5.0% high-speed on-chip oscillator accuracy over –40°C to +85°C.
Technical Context
The R5F10369ASM#75 implements the RL78 CPU core with 3-stage pipeline CISC architecture, 1 MB address space, and selectable instruction execution time (0.04167 µs at 24 MHz). It operates in HALT, STOP, and SNOOZE low-power modes with 63 µA/MHz active current consumption.
It integrates an 8/10-bit 11-channel A/D converter with internal 1.45 V reference and temperature sensor, four 16-bit timer channels with PWM capability, one watchdog timer, and a 12-bit interval timer - all powered from a single supply without external regulators.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline, 1 MB address space, 31 DMIPS @ 24 MHz |
| Memory | 12 KB code flash (1 KB block size), 768 B RAM, no data flash memory |
| Power Supply | 1.8 V to 5.5 V single supply; operates down to 1.8 V without brownout reset |
| Operating Temperature | –40°C to +85°C (A-grade consumer/industrial ambient) |
| Oscillator Accuracy | ±5.0% over –40°C to +85°C for high-speed on-chip oscillator (1–24 MHz selectable) |
| Analog Peripherals | 8/10-bit 11-channel ADC with internal 1.45 V reference and integrated temperature sensor |
| Digital Interfaces | 1 UART channel, 1 simplified SPI (CSI) channel, no I²C or DMA controller |
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 |
|---|---|---|
| P10/ANI16/PCLBUZ0/SCK00/SCL00 | Port 1 bit 0 / Analog input 16 / Programmable clock/buzzer output / CSI00 clock / I²C00 clock | Multi-function pin supporting serial interface clocking, analog sensing, or timing signal generation |
| P11/ANI17/SI00/RxD0/SDA00/TOOLRxD | Port 1 bit 1 / Analog input 17 / CSI00 data in / UART0 receive / I²C00 data / debug receive | Shared UART/I²C/CSI input with tool interface compatibility; requires peripheral I/O redirection register (PIOR) configuration |
| P12/ANI18/SO00/TxD0/TOOLTxD | Port 1 bit 2 / Analog input 18 / CSI00 data out / UART0 transmit / debug transmit | Primary UART0 TX path with fallback to CSI00 output or analog input; supports in-circuit debugging |
| P13/ANI19/TI00/TO00/INTP2 | Port 1 bit 3 / Analog input 19 / Timer input 0 / Timer output 0 / External interrupt 2 | Configurable as timer capture/compare I/O or analog input; enables edge-triggered event handling |
| P14/ANI20/TI01/TO01/INTP3 | Port 1 bit 4 / Analog input 20 / Timer input 1 / Timer output 1 / External interrupt 3 | Second timer I/O pair with interrupt capability; supports PWM generation or pulse-width measurement |
| P20/ANI0/AVREFP | Port 2 bit 0 / Analog input 0 / Positive analog reference voltage | Primary analog reference input; must be decoupled per design guidelines when used as AVREFP |
| P21/ANI1/AVREFM | Port 2 bit 1 / Analog input 1 / Negative analog reference voltage | Differential analog reference pair with ANI0; enables ratiometric or differential A/D measurements |
| P22/ANI2 | Port 2 bit 2 / Analog input 2 | Dedicated analog input channel; supports internal temperature sensor readout |
| P23/ANI3 | Port 2 bit 3 / Analog input 3 | Additional analog input with same electrical specs as ANI0–ANI2; usable for multi-sensor systems |
| P40/KR0/TOOL0 | Port 4 bit 0 / Key return 0 / Debug interface I/O | Supports key matrix scanning or debug communication; configured via system control registers |
| 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 1 | High-flexibility pin enabling dual timer I/O, second CSI channel, or analog sensing |
| P42/ANI21/SCK01/SCL01/TI03/TO03 | Port 4 bit 2 / Analog input 21 / CSI01 clock / I²C01 clock / Timer input 3 / Timer output 3 | Secondary serial clock source with timer capture/compare; supports synchronous peripheral interfacing |
| P60/KR4/SCLA0/(TxD0) | Port 6 bit 0 / Key return 4 / I²C00 clock / UART0 transmit (remapped) | Alternate UART TX function via PIOR; enables flexible board layout when primary TX pin is constrained |
| P61/KR5/SDAA0/(RxD0) | Port 6 bit 1 / Key return 5 / I²C00 data / UART0 receive (remapped) | Alternate UART RX function; allows I²C bus sharing or remapped debug interface routing |
| P121/KR3/X1/(TI03)/(INTP3) | Port 12 bit 1 / Key return 3 / Crystal oscillator input / Timer input 3 / Interrupt 3 | Primary crystal input; also serves as timer input or interrupt source when X1 not used |
| 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 output or external clock input; doubles as timer input or interrupt trigger |
| P125/KR1/SI01/RESET | Port 12 bit 5 / Key return 1 / CSI01 data in / Reset input | Hardware reset pin with internal pull-up; also functions as CSI01 data input when reset disabled |
| P137/INTP0 | Port 13 bit 7 / External interrupt 0 | Dedicated interrupt pin with priority control; supports wake-up from low-power modes |
| VDD | Positive power supply | 1.8–5.5 V main supply; powers all digital and analog circuitry including ADC and oscillators |
| VSS | Ground reference | Common return path for all signals; requires low-impedance connection to minimize noise coupling |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 63 µA/MHz active current enables >10-year battery life in sensor nodes using STOP/HALT modes |
| No data flash memory | Reduces die cost and simplifies firmware update architecture - ideal for fixed-function applications |
| Simplified serial interfaces | Single UART + single CSI eliminates protocol stack overhead for point-to-point sensor-to-host links |
| On-chip temperature sensor | Integrated thermal monitoring enables self-calibration and thermal throttling without external components |
| Peripheral I/O redirection | PIOR register allows dynamic reassignment of up to 12 pins - increases PCB layout flexibility and reuse |
| 1.8 V minimum operating voltage | Supports direct Li-ion/Li-Po battery operation without buck-boost regulation in portable devices |
Applications
| Smart Home Sensor Node | Industrial HMI Panel |
|---|---|
|
Use Scenario: Battery-powered occupancy/motion sensor with local LED feedback and BLE gateway handoff. IC Role / Device Role / Timing Role: Main system controller executing sensor fusion, LED timing, and UART-based command parsing for BLE module. Use Value: 63 µA/MHz active current and STOP mode extend coin-cell battery life beyond 5 years; 11-channel ADC reads PIR, ambient light, and temperature simultaneously. |
Use Scenario: Touch-enabled front-panel controller for HVAC or PLC with status LEDs and button inputs. IC Role / Device Role / Timing Role: Real-time UI coordinator managing capacitive touch scan, LED PWM dimming, and UART diagnostics logging. Use Value: Four 16-bit timer channels drive independent LED PWM outputs; key return (KR0–KR5) pins directly interface mechanical buttons without external shifters. |
| Portable Medical Monitor | White Goods Control Module |
|
Use Scenario: Handheld pulse oximeter with analog front-end, OLED display driver, and USB-C charging status reporting. IC Role / Device Role / Timing Role: Signal acquisition controller sampling photodiode ADC channels and generating precise timing for LED pulsing. Use Value: Internal 1.45 V reference ensures stable ADC gain across battery discharge; ±5.0% oscillator tolerance meets non-critical timing requirements. |
Use Scenario: Washing machine mainboard sub-controller handling motor phase sensing, water level ADC, and buzzer alerts. IC Role / Device Role / Timing Role: Dedicated motor control assistant performing real-time current sampling, fault detection, and acoustic feedback generation. Use Value: TI00/TO00 and TI01/TO01 pins implement hardware-based zero-crossing detection; PCLBUZ0 drives piezo buzzer without CPU intervention. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10368ASM#75 | 4 KB code flash, 512 B RAM, identical pinout and peripheral set | Lower memory footprint suits simpler firmware (e.g., basic timer-based controllers) | Select when application code size remains under 4 KB and cost sensitivity outweighs future scalability |
| R5F10269ASM#75 | Includes 2 KB data flash, ±1.0% oscillator accuracy, DMA controller, and CRC engine | Required for field-upgradable firmware, high-accuracy timing, or data-logging applications | Choose when secure self-programming, deterministic timing, or background data writes are mandatory |
Compared with R5F10369ASM#75, R5F10368ASM#75 reduces memory capacity but maintains identical low-power behavior and interface compatibility, while R5F10269ASM#75 adds data flash and tighter oscillator tolerance at the cost of higher unit price and slightly increased active current.
Availability
R5F10369ASM#75 is available at Aetrix Electronics and suitable for smart home sensor nodes, industrial HMI panels, portable medical monitors, and white goods control modules requiring stable component supply and long-term production continuity.
Supply support for R5F10369ASM#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 general-purpose control applications - balancing performance, integration, and energy efficiency.
FAQ
What is the maximum operating frequency and corresponding DMIPS rating for the R5F10369ASM#75?
The R5F10369ASM#75 achieves a maximum operating frequency of 24 MHz using its high-speed on-chip oscillator, delivering 31 DMIPS performance. This benchmark reflects integer instruction throughput under standard conditions and is validated across the full –40°C to +85°C temperature range specified for this A-grade device.
Does the R5F10369ASM#75 include data flash memory, and how does that affect firmware updates?
No, the R5F10369ASM#75 does not include data flash memory - a deliberate differentiation from the R5F102xx series. Firmware updates must be performed entirely within the 12 KB code flash area using Renesas' Flash Self Programming Library Type01, with no dedicated non-volatile storage for parameter retention or background writes.
What are the key differences between the R5F10369ASM#75 and the R5F10269ASM#75 in terms of oscillator accuracy and peripheral features?
The R5F10369ASM#75 specifies ±5.0% high-speed on-chip oscillator accuracy over –40°C to +85°C, whereas the R5F10269ASM#75 guarantees ±1.0%. Additionally, R5F10269ASM#75 includes DMA, CRC, and 2 KB data flash - features absent in R5F10369ASM#75 - making it suitable for higher-integrity or data-intensive applications.
Can the R5F10369ASM#75 operate reliably at 1.8 V, and what peripherals remain functional at that voltage?
Yes, the R5F10369ASM#75 is fully specified to operate at 1.8 V minimum supply voltage. At this level, the 8/10-bit ADC (with internal 1.45 V reference), all 16-bit timers, UART, CSI, key return inputs, and low-power modes (HALT/STOP/SNOOZE) remain fully functional - enabling direct single-cell lithium battery operation.
How many analog input channels does the R5F10369ASM#75 support, and what reference options are available for the ADC?
The R5F10369ASM#75 supports 11 analog input channels (ANI0–ANI3, ANI16–ANI22). The ADC uses an internal 1.45 V reference by default, and supports external reference via AVREFP/AVREFM pins. No external reference buffer or precision voltage source is required for typical industrial sensing applications.
R5F10369ASM#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:
- 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#75 FAQ
1.How can I place an order for R5F10369ASM#75 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10369ASM#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 R5F10369ASM#75 reliable?
The price and inventory of R5F10369ASM#75 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10369ASM#75 is usually 5 days.
3.What payment methods are accepted for R5F10369ASM#75?
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4.How is shipping managed for R5F10369ASM#75?
R5F10369ASM#75 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10369ASM#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 R5F10369ASM#75?
For technical support, including R5F10369ASM#75 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10369ASM#75 requirements.
6.How does Aetrix verify that R5F10369ASM#75 is sourced from the original manufacturer or authorized distributors?
All R5F10369ASM#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 R5F10369ASM#75 meets industry standards.
7.What is the process for return or replacement of R5F10369ASM#75?
All R5F10369ASM#75 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10369ASM#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 R5F10369ASM#75 part is unused and in its original packaging.
Return procedure for R5F10369ASM#75:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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