Renesas R5F10369ASP#35
- Part No.:
- R5F10369ASP#35
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 20-LSSOP (0.173", 4.40mm Width)
- Datasheet:
-
R5F10369ASP#35.pdf
- Description:
- IC MCU 16BIT 12KB FLASH 20LSSOP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F10369ASP#35 from Renesas Electronics is a 20-pin LSSOP ultra-low-power 16-bit RL78/G12 microcontroller for cost-sensitive consumer and industrial embedded control, featuring 12 KB code flash, 768 B RAM, 1.8–5.5 V operation, 24 MHz max CPU speed (31 DMIPS), and 63 μA/MHz active current. It integrates an 8/10-bit 11-channel ADC, UART, CSI, on-chip debug, and operates across –40°C to +85°C.
For engineers reviewing the R5F10369ASP#35 datasheet, R5F10369ASP#35 pinout, R5F10369ASP#35 application, or R5F10369ASP#35 equivalent, this page delivers verified technical context, package mapping, real-world use scenarios, and validated alternative options - all grounded in Renesas' official R01DS0193EJ0250 Rev.2.50 specification.
Technical Context
The R5F10369ASP#35 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, supporting instruction execution times from 0.04167 μs (@24 MHz high-speed on-chip oscillator) to 1 μs (@1 MHz). Its memory subsystem includes 12 KB code flash (1 KB block size), no data flash, and 768 B RAM - distinguishing it from R5F102-series parts which include 2 KB data flash.
It features a 16-bit timer array (TAU0) with 4 channels, one 12-bit interval timer, one watchdog timer, and serial interfaces limited to 1 UART, 1 CSI channel, and no simplified I²C - consistent with R5F1036x 20-pin variants per Section 1.7. The high-speed on-chip oscillator offers ±5.0% accuracy over –40°C to +85°C, and lacks DMA, CRC, RAM guard, and SFR guard functions present in R5F102 counterparts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RL78 16-bit CISC with 3-stage pipeline; enables deterministic real-time control at 31 DMIPS @24 MHz |
| Flash Memory | 12 KB code flash (1 KB erase blocks); supports self-programming but excludes data flash - simplifies firmware update logic |
| RAM Size | 768 B internal RAM; sufficient for small RTOS stacks or bare-metal sensor fusion without external memory |
| Supply Voltage | 1.8 V to 5.5 V single supply; enables direct interface with 1.8 V, 3.3 V, and 5 V peripherals without level shifters |
| Operating Temp | –40°C to +85°C (A-grade); qualified for consumer and industrial ambient environments without derating |
| Power Efficiency | 63 μA/MHz active current; reduces battery drain in portable devices and extends runtime in energy-harvesting systems |
| ADC | 8/10-bit resolution, 11-channel SAR ADC with internal 1.45 V reference and temperature sensor; supports analog monitoring without external references |
Pinout & Package
Package: 20-pin plastic LSSOP (4.4 × 6.5 mm, 0.65-mm pitch), JEDEC MO-153 compliant, marked PLSP0020JB-A per Table 1-1. Thermal pad not present; standard surface-mount reflow compatible.
| 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 enabling shared use for timing generation, serial communication, or analog sensing - requires PIOR configuration for mode selection |
| P11/ANI17/SI00/RxD0/SDA00/TOOLRxD | Port 1 bit 1 / Analog input 17 / SPI input / UART receive / I²C data / Debug receive | Combines serial peripheral input with debug interface; allows in-system programming and host communication over same physical line |
| P12/ANI18/SO00/TxD0/TOOLTxD | Port 1 bit 2 / Analog input 18 / SPI output / UART transmit / I²C data / Debug transmit | Enables full-duplex UART or SPI operation while retaining analog capability - critical for mixed-signal sensor nodes |
| P20/ANI0/AVREFP | Port 2 bit 0 / Analog input 0 / Positive analog reference | Dedicated reference input stabilizes ADC measurements; AVREFP must be decoupled to reduce noise-induced quantization error |
| P21/ANI1/AVREFM | Port 2 bit 1 / Analog input 1 / Negative analog reference | Completes differential reference pair; used with AVREFP to enable ratiometric or true differential ADC measurements |
| P40/KR0/TOOL0 | Port 4 bit 0 / Key return 0 / Debug I/O | Serves as general-purpose I/O, keypad scan line, or debug data channel - supports low-pin-count HMI designs |
| P125/KR1/SI01/RESET | Port 12 bit 5 / Key return 1 / SPI input / Reset input | Primary reset entry point with Schmitt-triggered input; also usable as SPI slave input when RESET function disabled via software |
| VDD / VSS | Power supply / Ground | Single 1.8–5.5 V rail; requires local 100 nF ceramic decoupling per supply pin to maintain stable core and analog operation |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power HALT/STOP/SNOOZE modes | Reduces current to sub-μA levels during idle; enables multi-year battery life in wireless sensor transmitters |
| On-chip high-speed oscillator (1–24 MHz) | Eliminates external crystal for cost-sensitive applications; ±5.0% accuracy ensures reliable UART baud rate generation at 9600–115200 bps |
| 11-channel 8/10-bit ADC with temp sensor | Enables simultaneous voltage, current, and temperature monitoring in motor controllers or power supplies without external sensors |
| Peripheral I/O redirection (PIOR) | Allows dynamic remapping of UART, SPI, and timer outputs to alternate pins - increases PCB layout flexibility and reduces routing congestion |
| On-chip debug interface (SWD/JTAG) | Supports full-speed real-time debugging and flash programming via single TOOL0/TOOLRxD/TOOLTxD pin set - eliminates need for dedicated debug header |
| 1.8–5.5 V wide supply range | Permits direct connection to Li-ion, alkaline, or USB-powered rails; avoids external regulators in space-constrained designs |
Applications
| Home Appliance Control | Industrial Sensor Node |
|---|---|
Use Scenario: Microcontroller in smart thermostat managing HVAC cycles, display, and environmental sensing. IC Role / Device Role / Timing Role: Main system controller executing PID loop, driving LCD segments, and sampling thermistor/NTC inputs via ADC. Use Value: 12 KB flash accommodates closed-loop control firmware plus OTA update partition; 63 μA/MHz extends battery life in wireless variants. |
Use Scenario: Battery-powered vibration/temperature node in predictive maintenance system. IC Role / Device Role / Timing Role: Data acquisition engine sampling accelerometer and thermal sensor, then transmitting via UART to gateway. Use Value: Integrated 11-channel ADC and ultra-low-power STOP mode enable 10+ year deployment on coin cell; UART simplifies integration with LoRaWAN modules. |
| Consumer IoT Gateway | White Goods Motor Driver |
Use Scenario: Local hub aggregating BLE/Zigbee sensor data before forwarding to cloud via Wi-Fi/Ethernet. IC Role / Device Role / Timing Role: Protocol translation bridge handling UART-to-SPI bridging and command parsing. Use Value: Single 20-pin LSSOP package reduces BOM count; 1.8–5.5 V operation matches diverse peripheral voltage domains without level-shifting ICs. |
Use Scenario: BLDC motor commutation controller in washing machine drum drive. IC Role / Device Role / Timing Role: Real-time PWM generator using TAU0 timer outputs, synchronized with hall-effect position feedback. Use Value: 4-channel 16-bit timer with complementary outputs supports 3-phase gate driver timing; 31 DMIPS handles FOC math within 50 μs interrupt latency. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10269ASP#35 | Includes 2 KB data flash and DMA; ±1.0% oscillator accuracy; adds CRC/RAM guard | Required where background data logging or safety-critical checksum validation is needed | Select when firmware requires non-volatile parameter storage or functional safety compliance (IEC 61508 SIL-2) |
| R5F10368ASP#35 | 4 KB code flash, 512 B RAM, identical peripheral set and package | Suitable for simpler firmware with smaller memory footprint and lower cost target | Choose for basic control tasks (e.g., LED dimmer, fan speed regulator) where 12 KB flash is unnecessary |
Compared with R5F10269ASP#35, the R5F10369ASP#35 trades data flash and tighter oscillator tolerance for lower unit cost and reduced feature complexity; versus R5F10368ASP#35, it provides 8 KB more flash and 256 B more RAM for enhanced firmware scalability - both alternatives retain identical pinout and LSSOP-20 packaging.
Availability
R5F10369ASP#35 is available at Aetrix Electronics and suitable for home appliance control, industrial sensor nodes, consumer IoT gateways, and white goods motor drivers requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.
Supply support for R5F10369ASP#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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.
The RL78/G12 product line targets cost-optimized, ultra-low-power embedded control applications - delivering high integration and energy efficiency for battery-operated and energy-conscious systems.
FAQ
What is the maximum operating frequency and corresponding DMIPS performance of the R5F10369ASP#35?
The R5F10369ASP#35 achieves a maximum CPU clock of 24 MHz using its high-speed on-chip oscillator, delivering 31 DMIPS performance. This is measured under HS (high-speed main) mode with VDD ≥ 2.7 V. Instruction timing remains deterministic across the full 1.8–5.5 V supply range, making the R5F10369ASP#35 suitable for variable-voltage battery applications where consistent throughput matters.
Does the R5F10369ASP#35 include data flash memory?
No, the R5F10369ASP#35 does not include data flash memory. As confirmed in Section 1.3.1 of the R01DS0193EJ0250 datasheet, R5F103-series devices omit the 2 KB data flash found in R5F102-series parts. Firmware must use code flash sectors or external EEPROM for non-volatile parameter storage. The R5F10369ASP#35 retains full self-programming capability for code flash updates.
What serial interfaces are supported on the R5F10369ASP#35?
The R5F10369ASP#35 supports one UART channel (RxD0/TxD0), one Simplified SPI (CSI00) channel, and no simplified I²C interface - per Section 1.7's "Serial interface" table for R5F1036x 20-pin products. It does include one full I²C bus (IICA0) with SCLA0/SDAA0 pins. All serial functions are configurable via the Peripheral I/O Redirection Register (PIOR) to alternate pins when needed.
What is the ADC resolution and channel count on the R5F10369ASP#35?
The R5F10369ASP#35 integrates an 8/10-bit successive approximation register (SAR) ADC with 11 input channels (ANI0–ANI3, ANI16–ANI22), internal 1.45 V reference voltage, and integrated temperature sensor. Resolution is selectable per conversion; the ADC operates across the full 1.8–5.5 V supply range without external references, enabling accurate voltage, current, and thermal monitoring in compact designs.
Is the R5F10369ASP#35 pin-compatible with other RL78/G12 20-pin LSSOP variants?
Yes, the R5F10369ASP#35 shares identical pinout and LSSOP-20 package (PLSP0020JB-A) with all R5F1036x and R5F1026x variants, including R5F10368ASP#35 and R5F10269ASP#35. Pin functions match per Section 1.4.1 and Table 1-1. However, peripheral availability differs - e.g., R5F10269ASP#35 adds data flash and DMA, while R5F10369ASP#35 omits them - so firmware must be validated for functional equivalence.
R5F10369ASP#35 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 20-LSSOP (0.173", 4.40mm Width)
- Series:
- RL78/G12
- Packaging:
- Tube
- Product Status:
- Active
- 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#35 FAQ
1.How can I place an order for R5F10369ASP#35 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10369ASP#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 R5F10369ASP#35 reliable?
The price and inventory of R5F10369ASP#35 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10369ASP#35 is usually 5 days.
3.What payment methods are accepted for R5F10369ASP#35?
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R5F10369ASP#35 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10369ASP#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 R5F10369ASP#35?
For technical support, including R5F10369ASP#35 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10369ASP#35 requirements.
6.How does Aetrix verify that R5F10369ASP#35 is sourced from the original manufacturer or authorized distributors?
All R5F10369ASP#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 R5F10369ASP#35 meets industry standards.
7.What is the process for return or replacement of R5F10369ASP#35?
All R5F10369ASP#35 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10369ASP#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 R5F10369ASP#35 part is unused and in its original packaging.
Return procedure for R5F10369ASP#35:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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