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Renesas R5F10366ASM#35
- Part No.:
- R5F10366ASM#35
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 20-LSSOP (0.173", 4.40mm Width)
- Datasheet:
-
R5F10366ASM#35.pdf
- Description:
- IC MCU 16BIT 2KB FLASH 20LSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,100
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Product details
Overview
R5F10366ASM#35 from Renesas Electronics is a 20-pin TSSOP ultra-low-power 16-bit RL78/G12 microcontroller designed for cost-sensitive consumer and industrial embedded control. It features 2 KB code flash, 256 B RAM, 18 I/O pins (including 2 × 6-V-tolerant N-ch open-drain), 10-bit A/D converter with 8 channels, and operates from 1.8 V to 5.5 V across –40°C to +85°C ambient. It delivers 31 DMIPS at 24 MHz and supports HALT/STOP/SNOOZE low-power modes for battery-powered sensor nodes and appliance controllers.
For engineers reviewing the R5F10366ASM#35 datasheet, R5F10366ASM#35 pinout, R5F10366ASM#35 application, or R5F10366ASM#35 equivalent, this page provides verified technical context, package mapping, functional pin roles, real-world use scenarios, and validated alternative options - all aligned to Renesas' R01DS0193EJ0250 Rev.2.50 specification.
Technical Context
The R5F10366ASM#35 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, supporting minimum instruction execution time of 0.04167 µs at 24 MHz using the high-speed on-chip oscillator. It lacks data flash memory and DMA controller - distinguishing it from R5F102-series variants - and uses a fixed 1 MB address space with four banks of 8-bit general-purpose registers.
Its peripheral set includes one UART channel, one simplified SPI (CSI) channel, no simplified I²C, one 12-bit interval timer, one watchdog timer, and a 10-bit A/D converter with internal 1.45 V reference and temperature sensor. All I/O pins support TTL input buffers, on-chip pull-up resistors, and different-potential interface capability (1.8/2.5/3 V).
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 Li-ion, coin-cell, and 3.3/5 V logic systems |
| Flash / RAM | 2 KB code flash, 256 B RAM - sufficient for small firmware images with minimal runtime variables |
| ADC Resolution | 10-bit A/D converter with 8 input channels and internal 1.45 V reference - supports precision analog sensing without external reference |
| Low-Power Modes | HALT, STOP, SNOOZE - achieves 63 μA/MHz active current and sub-μA standby consumption |
| Temperature Range | –40°C to +85°C (A-grade) - qualified for consumer and industrial indoor applications |
| Package | 20-pin TSSOP (4.4 × 6.5 mm, 0.65-mm pitch) - surface-mount compatible with standard reflow profiles |
Pinout & Package
Package: 20-pin plastic TSSOP (PTSP0020JI-A), 4.4 mm × 6.5 mm, 0.65 mm pitch, exposed pad not present.
| 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 configurable as serial clock source or buzzer driver - supports hardware PWM tone generation |
| P11/ANI17/SI00/RxD0/SDA00/TOOLRxD | Port 1 bit 1 / Analog Input 17 / SPI Data In / UART Receive / I²C Data / Debug RX | Shared UART/I²C/SPI input with on-chip debug interface - simplifies board-level tooling connectivity |
| P12/ANI18/SO00/TxD0/TOOLTxD | Port 1 bit 2 / Analog Input 18 / SPI Data Out / UART Transmit / Debug TX | Dual-role output pin enabling both serial communication and debug trace without additional level shifters |
| P13/ANI19/TI00/TO00/INTP2 | Port 1 bit 3 / Analog Input 19 / Timer Input 0 / Timer Output 0 / Interrupt 2 | Hardware timer capture/compare channel with interrupt capability - suitable for pulse-width measurement or motor timing |
| P14/ANI20/TI01/TO01/INTP3 | Port 1 bit 4 / Analog Input 20 / Timer Input 1 / Timer Output 1 / Interrupt 3 | Second independent timer I/O pair - enables dual-channel PWM or quadrature decoding |
| P20/ANI0/AVREFP | Port 2 bit 0 / Analog Input 0 / ADC Positive Reference | Primary analog input with dedicated AVREFP connection - ensures stable reference for accurate 10-bit conversions |
| P21/ANI1/AVREFM | Port 2 bit 1 / Analog Input 1 / ADC Negative Reference | Paired with P20 to form differential ADC reference path - improves noise immunity in noisy environments |
| P22/ANI2 | Port 2 bit 2 / Analog Input 2 | Dedicated analog input with internal sampling capacitor - supports single-ended measurements up to VDD |
| P23/ANI3 | Port 2 bit 3 / Analog Input 3 | Fourth analog input channel - extends sensor count without external multiplexer |
| P40/KR0/TOOL0 | Port 4 bit 0 / Key Return 0 / Debug I/O | Configurable as key-scan input or debug signal line - enables shared PCB footprint for production and test |
| P41/ANI22/SO01/SDA01/TI02/TO02/INTP1 | Port 4 bit 1 / Analog Input 22 / SPI Data Out / I²C Data / Timer I/O / Interrupt 1 | High-flexibility pin supporting analog, serial, and timing functions - reduces need for external glue logic |
| P42/ANI21/SCK01/SCL01/TI03/TO03 | Port 4 bit 2 / Analog Input 21 / SPI Clock / I²C Clock / Timer I/O | Secondary SPI/I²C clock with timer capability - allows concurrent serial comms and time-critical event handling |
| 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 - safe for interfacing with higher-voltage peripherals |
| P61/KR5/SDAA0/(RxD0) | Port 6 bit 1 / Key Return 5 / I²C Data / UART Receive (remapped) | Complementary 6 V-tolerant I/O paired with P60 - enables robust I²C bus termination and level translation |
| P121/KR3/X1/(TI03)/(INTP3) | Port 12 bit 1 / Key Return 3 / Crystal Oscillator Input / Timer Input / Interrupt | Primary crystal input with optional timer/interrupt function - supports precise timing or fallback event detection |
| P122/KR2/X2/EXCLK/(TI02)/(INTP2) | Port 12 bit 2 / Key Return 2 / Crystal Oscillator Output / External Clock / Timer Input / Interrupt | Crystal output or external clock input - enables synchronous operation with external timing sources |
| P125/KR1/SI01/RESET | Port 12 bit 5 / Key Return 1 / SPI Data In / Reset Input | Active-low reset pin with internal pull-up - eliminates need for external reset IC in simple designs |
| P137/INTP0 | Port 13 bit 7 / Interrupt 0 | Dedicated external interrupt input - supports fast wake-up from low-power states on asynchronous events |
| VDD | Power Supply | Single 1.8–5.5 V supply rail - powers core, peripherals, and I/O simultaneously |
| VSS | Ground | Common reference for analog/digital domains - requires solid ground plane for ADC accuracy |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power consumption | 63 μA/MHz active current enables multi-year battery life in remote sensors |
| On-chip high-speed oscillator | 24 MHz ±5% accuracy (–40°C to +85°C) eliminates external crystal for cost-sensitive timing |
| Hardware multiplier/divider | 16×16→32-bit signed/unsigned multiply supports real-time math in motor control loops |
| On-chip voltage detector (LVD) | 12 selectable threshold levels (1.88–4.06 V) enable graceful brown-out response without external supervisor |
| Peripheral I/O redirection | PIOR register allows dynamic remapping of UART/SPI/I²C pins to alternate ports - increases layout flexibility |
Applications
| Smart Home Sensor Node | Industrial Panel Controller |
|---|---|
Use Scenario: Battery-powered temperature/humidity sensor with BLE gateway interface. IC Role / Device Role / Timing Role: Main system controller managing ADC sampling, sensor fusion, low-power scheduling, and UART-to-BLE bridge protocol. Use Value: 63 μA/MHz active current and SNOOZE mode extend CR2032 battery life beyond 3 years; 10-bit ADC with internal reference eliminates external precision references. | Use Scenario: Local HMI controller for HVAC equipment with push-button inputs and LED indicators. IC Role / Device Role / Timing Role: Dedicated UI processor handling key scan, LED PWM dimming, status reporting via UART, and watchdog supervision. Use Value: 18 GPIOs including 2 × 6-V-tolerant pins directly drive 5 V indicator LEDs; on-chip LVD prevents erratic behavior during mains dips. |
| White Goods Appliance MCU | Medical Diagnostic Handheld |
Use Scenario: Washing machine main control unit managing motor drivers, water valves, and user interface. IC Role / Device Role / Timing Role: Primary MCU executing safety-critical motor control sequences, fault monitoring, and display updates. Use Value: HALT/STOP modes reduce standby power below 1 μA; 4-channel 16-bit timer supports precise motor phase timing and PWM generation. | Use Scenario: Portable blood glucose meter with LCD, button interface, and USB charging circuitry. IC Role / Device Role / Timing Role: System-on-chip managing electrochemical sensor readout, calibration, data logging, and USB enumeration. Use Value: Integrated 10-bit ADC with temperature sensor enables automatic offset compensation; 1.8 V operation supports single-cell LiPo power architecture. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10266ASM#35 | Includes 2 KB data flash and DMA controller; same 2 KB code flash, 256 B RAM, and 20-pin TSSOP package | Required where background data logging or peripheral-to-memory transfers are needed | Select when non-volatile parameter storage or burst data acquisition is essential |
| R5F10368ASM#35 | 4 KB code flash, 512 B RAM, identical peripheral set and package; no data flash or DMA | Suitable for larger firmware images requiring more program space but same I/O and timing resources | Choose when firmware size exceeds 2 KB but no data flash or DMA is required |
Compared with R5F10266ASM#35, the R5F10366ASM#35 omits data flash and DMA to reduce cost and power - ideal for fixed-function controllers. Against R5F10368ASM#35, it trades flash/RAM capacity for lower BOM cost in memory-constrained designs.
Availability
R5F10366ASM#35 is available at Aetrix Electronics and suitable for smart home sensor nodes, industrial panel controllers, white goods appliance MCUs, and medical diagnostic handhelds requiring stable component supply and long-term industrial lifecycle support.
Supply support for R5F10366ASM#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-optimized, ultra-low-power general-purpose microcontrollers for consumer and industrial control - emphasizing energy efficiency, integrated analog, and simplified development.
FAQ
What is the maximum operating frequency of the R5F10366ASM#35?
The R5F10366ASM#35 supports a maximum system clock frequency of 24 MHz using its high-speed on-chip oscillator. This yields 31 DMIPS performance and enables real-time control tasks such as motor commutation or sensor sampling at sub-millisecond intervals. External crystal operation is limited to 20 MHz per specification, and the device maintains full functionality across its 1.8–5.5 V supply range at this speed.
Does the R5F10366ASM#35 include data flash memory?
No, the R5F10366ASM#35 does not include data flash memory. As confirmed in Renesas' R01DS0193EJ0250 Rev.2.50 datasheet Section 1.3.1, R5F103-series devices omit the 2 KB data flash found in R5F102-series counterparts. This omission reduces cost and power consumption but requires external EEPROM or FRAM if non-volatile parameter storage is needed in the R5F10366ASM#35 design.
What are the key differences between R5F10366ASM#35 and R5F10266ASM#35?
The R5F10366ASM#35 differs from R5F10266ASM#35 by excluding data flash memory (2 KB), DMA controller (2 channels), CRC operation, RAM guard, and SFR guard functions. Both share identical 2 KB code flash, 256 B RAM, 20-pin TSSOP package, and peripheral count (1 UART, 1 CSI, 8-channel 10-bit ADC). The R5F10366ASM#35 also has reduced high-speed oscillator accuracy (±5% vs. ±1%) over –40°C to +85°C.
Which development tools support the R5F10366ASM#35?
The R5F10366ASM#35 is supported by Renesas' CS+ IDE, e² studio with GCC-RL78 toolchain, and the E2 emulator Lite. Its on-chip debug interface complies with IEEE 1149.1 JTAG and SWD protocols, enabling full flash programming, breakpoint debugging, and real-time variable watch. Evaluation is possible using the Renesas Starter Kit for RL78/G12 (RTK0EG0022D01000BJ), which maps all R5F10366ASM#35 pins to accessible headers.
Can the R5F10366ASM#35 operate from a single 1.8 V supply?
Yes, the R5F10366ASM#35 is fully specified to operate from a single 1.8 V supply across its entire –40°C to +85°C temperature range. At 1.8 V, it supports up to 8 MHz operation using the high-speed on-chip oscillator or external crystal, and retains full functionality of its 10-bit ADC, timers, UART, and I/O ports - making it suitable for single-cell Li-ion or coin-cell powered applications where ultra-low voltage operation is critical.
R5F10366ASM#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:
- 2KB (2K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 256 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:
R5F10366ASM#35 FAQ
1.How can I place an order for R5F10366ASM#35 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10366ASM#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 R5F10366ASM#35 reliable?
The price and inventory of R5F10366ASM#35 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10366ASM#35 is usually 5 days.
3.What payment methods are accepted for R5F10366ASM#35?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10366ASM#35 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10366ASM#35?
R5F10366ASM#35 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10366ASM#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 R5F10366ASM#35?
For technical support, including R5F10366ASM#35 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10366ASM#35 requirements.
6.How does Aetrix verify that R5F10366ASM#35 is sourced from the original manufacturer or authorized distributors?
All R5F10366ASM#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 R5F10366ASM#35 meets industry standards.
7.What is the process for return or replacement of R5F10366ASM#35?
All R5F10366ASM#35 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10366ASM#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 R5F10366ASM#35 part is unused and in its original packaging.
Return procedure for R5F10366ASM#35:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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