Renesas R5F10369ASP#X5
- Part No.:
- R5F10369ASP#X5
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 20-LSSOP (0.173", 4.40mm Width)
- Datasheet:
-
R5F10369ASP#X5.pdf
- Description:
- IC MCU 16BIT 12KB FLASH 20LSSOP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F10369ASP#X5 from Renesas Electronics is a 20-pin LSSOP ultra-low-power 16-bit RL78/G12 microcontroller designed for cost-sensitive consumer and industrial embedded control. It features 12 KB code flash, 768 B RAM, 1.8–5.5 V operation, 24 MHz max CPU speed (31 DMIPS), and integrated 10-bit 11-channel ADC with temperature sensor - deployed in smart appliance motor control and battery-powered sensor nodes.
For engineers reviewing the R5F10369ASP#X5 datasheet, R5F10369ASP#X5 pinout, R5F10369ASP#X5 application, or R5F10369ASP#X5 equivalent, key selection criteria include its 20-pin LSSOP package, absence of data flash memory, single UART channel, no DMA controller, and ±5.0% high-speed on-chip oscillator accuracy over –40°C to +85°C.
Technical Context
The R5F10369ASP#X5 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 a 10-bit A/D converter with internal 1.45 V reference and temperature sensor, four 16-bit timer channels (including PWM-capable TAU0), watchdog timer, voltage detector with 12-level interrupt/reset selection, and on-chip power-on-reset circuit - all optimized for deterministic real-time control in resource-constrained systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC CPU with 3-stage pipeline, 1 MB address space |
| Max Operating Frequency | 24 MHz (31 DMIPS), supported by high-speed on-chip oscillator (±5.0% accuracy) |
| Memory | 12 KB code flash (1 KB block size), 768 B RAM, no data flash memory |
| ADC | 10-bit resolution, 11 input channels, internal 1.45 V reference, integrated temperature sensor |
| Timers | Four 16-bit timer channels (TAU0), one 12-bit interval timer, one window watchdog timer |
| I/O & Peripherals | 18 I/O pins (including 2× 6-V-tolerant N-ch open-drain), 1× UART, 1× simplified SPI (CSI), no I²C or DMA |
| Supply & Temp Range | 1.8–5.5 V operation, –40°C to +85°C ambient (A-grade consumer/industrial) |
Pinout & Package
Package: 20-pin plastic LSSOP (4.4 × 6.5 mm, 0.65-mm pitch), RoHS-compliant, tape-and-reel (#X5).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/ANI16/PCLBUZ0/SCK00/SCL00 | Port 1 bit 0 / Analog Input 16 / Programmable Clock/Buzzer Output / SPI Clock / I²C Clock | Multi-function pin supporting serial interface clocking, analog sensing, or timed output generation |
| P11/ANI17/SI00/RxD0/SDA00/TOOLRxD | Port 1 bit 1 / Analog Input 17 / SPI Data In / UART Receive / I²C Data / Debug RX | Shared serial data path for UART, SPI, or I²C communication; also supports debug interface |
| P12/ANI18/SO00/TxD0/TOOLTxD | Port 1 bit 2 / Analog Input 18 / SPI Data Out / UART Transmit / Debug TX | Primary UART transmit path and SPI output; enables firmware update via tool 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 | Dual timer I/O for quadrature decoding or dual-edge timing measurement |
| P20/ANI0/AVREFP | Port 2 bit 0 / Analog Input 0 / Positive Analog Reference | Primary analog reference point and first ADC channel; requires stable decoupling |
| P21/ANI1/AVREFM | Port 2 bit 1 / Analog Input 1 / Negative Analog Reference | Differential reference pair for precision analog measurements |
| P22/ANI2 | Port 2 bit 2 / Analog Input 2 | Dedicated analog input with internal sampling capacitor |
| P23/ANI3 | Port 2 bit 3 / Analog Input 3 | Additional analog input supporting temperature sensor readout |
| P40/KR0/TOOL0 | Port 4 bit 0 / Key Return 0 / Debug Interface I/O | Supports keypad scanning or bidirectional debug communication |
| P41/ANI22/SO01/SDA01/TI02/TO02/INTP1 | Port 4 bit 1 / Analog Input 22 / SPI Output / I²C Data / Timer I/O / Interrupt Pin 1 | High-flexibility pin for mixed-signal timing, serial comms, or interrupt-driven wake-up |
| P42/ANI21/SCK01/SCL01/TI03/TO03 | Port 4 bit 2 / Analog Input 21 / SPI Clock / I²C Clock / Timer I/O | Secondary serial clock source with timer capability for synchronized peripheral control |
| P60/KR4/SCLA0/(TxD0) | Port 6 bit 0 / Key Return 4 / I²C Clock / UART Transmit (remapped) | Alternate UART TX path enabling flexible PCB routing without signal congestion |
| P61/KR5/SDAA0/(RxD0) | Port 6 bit 1 / Key Return 5 / I²C Data / UART Receive (remapped) | Alternate UART RX path supporting I²C bus sharing or remapped debug interface |
| P121/KR3/X1/(TI03)/(INTP3) | Port 12 bit 1 / Key Return 3 / Crystal Oscillator Input / Timer Input / Interrupt | Primary crystal connection point; also serves as external event counter or wake-up source |
| P122/KR2/X2/EXCLK/(TI02)/(INTP2) | Port 12 bit 2 / Key Return 2 / Crystal Oscillator Output / External Clock / Timer Input | Crystal output or external clock input; supports precise timing synchronization |
| P125/KR1/SI01/RESET | Port 12 bit 5 / Key Return 1 / SPI Data In / Reset Input | Hardware reset input with internal pull-up; doubles as SPI data input when not in reset mode |
| 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; requires local 100 nF ceramic decoupling |
| VSS | Ground | Reference ground for analog and digital domains; must be low-impedance |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power HALT/STOP/SNOOZE modes | 63 µA/MHz active current enables multi-year battery life in sensor nodes |
| On-chip high-speed oscillator (1–24 MHz) | Eliminates external crystal for cost-sensitive designs while maintaining ±5.0% accuracy |
| Integrated 10-bit 11-channel ADC with temp sensor | Enables closed-loop thermal monitoring and analog feedback without external components |
| Four 16-bit timer channels with PWM capability | Supports motor control, LED dimming, and precise pulse generation from a single chip |
| 18 GPIO with N-ch open-drain and pull-up options | Direct interface to 1.8/2.5/3.3 V logic and mechanical switches without level shifters |
| On-chip voltage detector (12-level LVD) | Provides programmable brown-out detection and safe shutdown before supply collapse |
Applications
| Smart Appliance Control | Industrial Sensor Node |
|---|---|
Use Scenario: Embedded motor control and user interface in washing machines and HVAC fan modules. IC Role / Device Role / Timing Role: Primary system controller executing real-time motor commutation, button scan, display drive, and fault monitoring. Use Value: Integrated 10-bit ADC and four 16-bit timers enable precise current sensing and PWM generation without external ICs. |
Use Scenario: Battery-powered environmental monitor measuring temperature, humidity, and air quality in factory settings. IC Role / Device Role / Timing Role: Low-power data acquisition hub with periodic wake-up, sensor reading, and wireless transmission trigger. Use Value: 63 µA/MHz active current and SNOOZE mode extend coin-cell battery life beyond 5 years. |
| Consumer IoT Remote | Medical Diagnostic Tool |
Use Scenario: IR/RF remote control with touch keys, backlight, and battery voltage monitoring. IC Role / Device Role / Timing Role: System-on-chip managing key matrix scan, IR modulation, and low-battery alert generation. Use Value: 18 GPIO with built-in pull-ups and key return function eliminate external resistors and reduce BOM count. |
Use Scenario: Portable blood glucose meter requiring analog front-end precision and regulatory-compliant safety checks. IC Role / Device Role / Timing Role: Safety-critical controller performing ADC calibration, CRC-checked data logging, and LCD refresh. Use Value: On-chip voltage detector and watchdog timer meet IEC 62304 Class B software safety requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10269ASP#X5 | Includes 2 KB data flash memory and DMA controller; ±1.0% oscillator accuracy | Required for field-upgradable firmware or background data logging | Select when non-volatile parameter storage or concurrent peripheral transfers are needed |
| R5F10368ASP#X5 | 4 KB code flash, same 768 B RAM, identical peripherals and package | Suitable for simpler firmware with smaller memory footprint and lower cost target | Choose for cost-optimized designs where 12 KB flash is unnecessary |
Compared with R5F10369ASP#X5, R5F10269ASP#X5 adds data flash and DMA at higher oscillator precision but increases cost and power in active mode, while R5F10368ASP#X5 reduces flash capacity without altering peripheral set - making it ideal for legacy firmware porting or minimal-feature implementations.
Availability
R5F10369ASP#X5 is available at Aetrix Electronics and suitable for smart appliance control, industrial sensor nodes, consumer IoT remotes, and portable medical diagnostics requiring stable component supply across long production lifecycles.
Supply support for R5F10369ASP#X5 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 delivering trusted microcontrollers, analog, and power solutions for automotive, industrial, and IoT markets.
The RL78/G12 product line delivers true low-power 16-bit MCUs optimized for cost-sensitive general-purpose embedded control - balancing performance, integration, and energy efficiency in compact packages.
FAQ
What is the maximum operating frequency and corresponding DMIPS rating for the R5F10369ASP#X5?
The R5F10369ASP#X5 achieves a maximum operating frequency of 24 MHz using its high-speed on-chip oscillator, delivering 31 DMIPS of processing performance. This rating is measured under standard conditions (VDD = 2.7–5.5 V, TA = –40°C to +85°C) and reflects integer instruction throughput per second - sufficient for real-time motor control and sensor fusion tasks in the R5F10369ASP#X5's target applications.
Does the R5F10369ASP#X5 include data flash memory, and how does that affect firmware updates?
No, the R5F10369ASP#X5 does not include data flash memory - unlike the R5F102xx series. All non-volatile storage relies on its 12 KB code flash, which supports self-programming via the flash shield window function. Firmware updates require careful sector management and erase-before-write sequencing, as there is no dedicated background data flash for parameter storage during program execution in the R5F10369ASP#X5.
What are the key differences between the R5F10369ASP#X5 and R5F10269ASP#X5 in terms of oscillator accuracy and peripheral support?
The R5F10369ASP#X5 specifies ±5.0% high-speed on-chip oscillator accuracy over –40°C to +85°C, whereas the R5F10269ASP#X5 guarantees ±1.0%. Additionally, the R5F10269ASP#X5 includes a 2-channel DMA controller and 2 KB data flash - features absent in the R5F10369ASP#X5. These differences make the R5F10269ASP#X5 preferable for time-critical data movement or field-upgradable firmware, while the R5F10369ASP#X5 prioritizes cost and simplicity.
Can the R5F10369ASP#X5 support I²C communication, and if so, which pins are used?
The R5F10369ASP#X5 does not support hardware I²C communication - it lacks dedicated I²C peripheral blocks. However, I²C-like functionality can be implemented in software using GPIO pins such as P10 (SCL) and P11 (SDA), leveraging its programmable pin functions and timer-based bit-banging. The R5F10369ASP#X5 datasheet confirms zero simplified I²C (IIC00/IIC01) channels and only one full I²C bus (IICA0) is present in R5F102xx variants, not in R5F103xx.
What low-power modes are available on the R5F10369ASP#X5, and what is the typical current draw in each?
The R5F10369ASP#X5 supports HALT, STOP, and SNOOZE low-power modes. HALT mode stops the CPU clock while preserving RAM and register contents (typical current ~1.2 µA). STOP mode halts all clocks including peripherals (typical current ~0.5 µA). SNOOZE mode allows selected peripherals like UART or ADC to operate while CPU sleeps (current scales with activity). Active-mode current is specified at 63 µA/MHz - verified at 24 MHz operation.
R5F10369ASP#X5 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:
- Obsolete
- Programmable:
- Not Verified
- 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:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F10369ASP#X5 FAQ
1.How can I place an order for R5F10369ASP#X5 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10369ASP#X5 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 R5F10369ASP#X5 reliable?
The price and inventory of R5F10369ASP#X5 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10369ASP#X5 is usually 5 days.
3.What payment methods are accepted for R5F10369ASP#X5?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10369ASP#X5 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10369ASP#X5?
R5F10369ASP#X5 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10369ASP#X5 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 R5F10369ASP#X5?
For technical support, including R5F10369ASP#X5 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10369ASP#X5 requirements.
6.How does Aetrix verify that R5F10369ASP#X5 is sourced from the original manufacturer or authorized distributors?
All R5F10369ASP#X5 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 R5F10369ASP#X5 meets industry standards.
7.What is the process for return or replacement of R5F10369ASP#X5?
All R5F10369ASP#X5 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10369ASP#X5, 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 R5F10369ASP#X5 part is unused and in its original packaging.
Return procedure for R5F10369ASP#X5:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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