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Renesas R5F10366ASM#15
- Part No.:
- R5F10366ASM#15
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 20-LSSOP (0.173", 4.40mm Width)
- Datasheet:
-
R5F10366ASM#15.pdf
- Description:
- IC MCU 16BIT 2KB FLASH 20LSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,213
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Product details
Overview
R5F10366ASM#15 from Renesas is a 20-pin TSSOP ultra-low-power 16-bit RL78/G12 microcontroller with 2 KB code flash, 256 B RAM, 1.8–5.5 V operation, and 24 MHz max CPU speed (31 DMIPS), deployed in battery-powered sensor nodes and industrial control interfaces.
For engineers reviewing the R5F10366ASM#15 datasheet, R5F10366ASM#15 pinout, R5F10366ASM#15 application, or R5F10366ASM#15 equivalent, key selection criteria include its 20-pin TSSOP-20 package, absence of data flash memory, single UART channel, lack of DMA, and ±5.0% high-speed on-chip oscillator accuracy over –40 to +85°C.
Technical Context
The R5F10366ASM#15 implements the RL78 CISC CPU core with 3-stage pipeline, 1 MB address space, and configurable 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.
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, and a 12-bit interval timer. Serial connectivity is limited to one UART channel and one simplified SPI (CSI) channel - no I²C or DMA support per R5F103-series specification.
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 | 2 KB code flash (1 KB block size), 256 B RAM - no data flash memory |
| Power Supply | 1.8 V to 5.5 V single supply; 63 µA/MHz active current enables multi-year battery life |
| Operating Temperature | –40°C to +85°C (consumer/industrial A/D grade); no +105°C G-grade option |
| Oscillator Accuracy | ±5.0% for high-speed on-chip oscillator (1–24 MHz) over full temp range |
| Analog Peripherals | 8/10-bit 11-channel ADC with internal 1.45 V reference and integrated temperature sensor |
| Timers & PWM | Four 16-bit timer channels; supports up to three independent PWM outputs |
| Serial Interfaces | One UART channel (RxD0/TxD0), one simplified SPI (CSI00), zero I²C or DMA channels |
Pinout & Package
Package: 20-pin TSSOP (PTSP0020JI-A), 4.4 × 6.5 mm, 0.65-mm pitch, lead-free, RoHS-compliant.
| 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 peripheral clocking, analog sensing, or serial interface - 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 RX | Primary UART receive path and SPI data input; shares function with on-chip debug interface |
| P12/ANI18/SO00/TxD0/TOOLTxD | Port 1 bit 2 / Analog input 18 / SPI output / UART transmit / I²C data / debug TX | Dedicated UART transmit line; also serves as SPI output and debug interface output |
| P13/ANI19/TI00/TO00/INTP2 | Port 1 bit 3 / Analog input 19 / Timer input 0 / Timer output 0 / External interrupt 2 | Timer capture/compare I/O with interrupt capability; supports edge-triggered event detection |
| 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 support; usable for quadrature decoding 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 with 0.1 µF capacitor for stable ADC operation |
| P21/ANI1/AVREFM | Port 2 bit 1 / Analog input 1 / Negative analog reference voltage | Differential analog reference pair; enables ratiometric measurements against AVREFP |
| P22/ANI2 | Port 2 bit 2 / Analog input 2 | Dedicated analog input channel; supports single-ended or differential acquisition |
| P23/ANI3 | Port 2 bit 3 / Analog input 3 | Fourth dedicated analog input; shares no alternate functions - reserved for analog sensing |
| P40/KR0/TOOL0 | Port 4 bit 0 / Key return 0 / Debug I/O | Supports capacitive touch key scanning or debug communication; configured via KRCTL register |
| 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, SPI/I²C data, or timer I/O - selected by PIOR |
| P42/ANI21/SCK01/SCL01/TI03/TO03 | Port 4 bit 2 / Analog input 21 / SPI clock / I²C clock / Timer input 3 / Timer output 3 | Shared clock/timer/analog resource; critical for synchronized peripheral timing or external event capture |
| 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; used for I²C bus clocking or remapped UART output |
| 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; supports I²C bus data or remapped UART input |
| P121/KR3/X1/(TI03)/(INTP3) | Port 12 bit 1 / Key return 3 / Crystal input / Timer input / Interrupt | Primary crystal oscillator input; also supports external event capture or interrupt triggering |
| P122/KR2/X2/EXCLK/(TI02)/(INTP2) | Port 12 bit 2 / Key return 2 / Crystal output / External clock / Timer input / Interrupt | Crystal oscillator output or external clock input; dual-use for precision timing source or event trigger |
| P125/KR1/SI01/RESET | Port 12 bit 5 / Key return 1 / SPI input / Reset input | Active-low hardware reset pin; also serves as SPI data input when RESET function is disabled |
| P137/INTP0 | Port 13 bit 7 / External interrupt 0 | Dedicated interrupt input with configurable edge sensitivity; lowest-latency wake-up source |
| VDD | Power supply | 1.8–5.5 V main supply; requires local 0.1 µF ceramic decoupling adjacent to pin |
| VSS | Ground | Reference ground for analog and digital domains; must be low-impedance connection to PCB ground plane |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power HALT/STOP/SNOOZE modes | Enables sub-µA sleep current; SNOOZE allows UART wake-up without full CPU restart |
| On-chip high-speed oscillator (1–24 MHz) | Eliminates external crystal for cost-sensitive designs; ±5.0% accuracy sufficient for UART baud rate |
| 11-channel 8/10-bit ADC with temp sensor | Reduces BOM count by integrating temperature monitoring and multi-sensor acquisition |
| Four 16-bit timer channels with PWM | Supports motor control, LED dimming, or signal generation without external timers |
| Single UART + single CSI interface | Meets basic serial communication needs for sensor reporting or host command interface |
| 1.8–5.5 V wide supply range | Direct compatibility with Li-ion, AA, or USB-powered systems without LDO regulation |
Applications
| Smart Sensor Node | Industrial Control Interface |
|---|---|
Use Scenario: Battery-powered environmental sensor collecting temperature, humidity, and light data every 10 seconds. IC Role / Device Role / Timing Role: Main system controller executing sensor readout, ADC conversion, UART transmission, and low-power state management. Use Value: 63 µA/MHz active current and SNOOZE mode enable >5-year CR2032 battery life; integrated temp sensor eliminates external component. | Use Scenario: DIN-rail mounted PLC I/O module converting 4–20 mA analog inputs to Modbus RTU over RS-485. IC Role / Device Role / Timing Role: Protocol translator and analog front-end controller handling ADC sampling, UART framing, and timing-critical RS-485 direction control. Use Value: Four 16-bit timers provide precise UART bit timing and RS-485 DE/RE signal delays; 1.8–5.5 V operation supports unregulated 24 VDC input with simple resistive divider. |
| Home Appliance Control Panel | Medical Diagnostic Handheld |
Use Scenario: Microwave oven control board managing keypad scan, display backlight PWM, and safety interlock monitoring. IC Role / Device Role / Timing Role: System supervisor coordinating user input, visual feedback, and real-time safety checks via GPIO and timer interrupts. Use Value: Six key return (KR) pins enable direct capacitive or mechanical keypad interface; programmable clock output drives display backlight at variable frequencies. | Use Scenario: Portable blood glucose meter acquiring analog strip voltage, computing result, and displaying via segmented LCD. IC Role / Device Role / Timing Role: Signal acquisition processor performing ADC conversion, calibration math, and LCD segment drive timing. Use Value: Integrated 1.45 V reference ensures consistent ADC accuracy across battery discharge; 256 B RAM suffices for firmware + measurement buffer in memory-constrained design. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10266ASM#15 | Same 20-pin TSSOP package, 2 KB flash, 256 B RAM, but includes 2 KB data flash and ±1.0% oscillator accuracy | Required where field firmware updates or parameter storage are needed; supports self-programming | Select when non-volatile parameter retention or bootloader capability is mandatory |
| R5F10368ASM#15 | Same R5F103 family, 4 KB flash, 512 B RAM, identical peripherals and oscillator spec | Needed for larger firmware images or expanded variable space; same power/performance envelope | Choose when application code exceeds 2 KB or requires additional RAM for buffers or stacks |
Compared with R5F10266ASM#15, the R5F10366ASM#15 omits data flash and tight oscillator tolerance to reduce cost and die size - ideal for fixed-function, factory-programmed devices. Against R5F10368ASM#15, it trades memory capacity for lower unit cost in resource-constrained deployments.
Availability
R5F10366ASM#15 is available at Aetrix Electronics and suitable for smart sensor nodes, industrial control interfaces, and home appliance control panels requiring stable component supply and long-term industrial availability.
Supply support for R5F10366ASM#15 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 specializing in microcontrollers, analog, and power solutions for automotive, industrial, and IoT markets.
The RL78/G12 product line delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive, battery-operated, and industrial control applications requiring robust analog integration and minimal external components.
FAQ
What is the maximum operating frequency and performance rating of the R5F10366ASM#15?
The R5F10366ASM#15 operates at up to 24 MHz with a performance rating of 31 DMIPS. Its RL78 CPU core achieves a minimum instruction execution time of 0.04167 µs under high-speed on-chip oscillator conditions. This frequency and throughput are validated across the full 1.8–5.5 V supply range and –40 to +85°C temperature span, making the R5F10366ASM#15 suitable for real-time control tasks in compact embedded systems.
Does the R5F10366ASM#15 include data flash memory?
No, the R5F10366ASM#15 does not include data flash memory. As confirmed in the RL78/G12 datasheet Section 1.3.1, R5F103-series devices omit the 2 KB data flash present in R5F102-series counterparts. This omission reduces cost and die area but means non-volatile parameter storage must be implemented externally or via code flash emulation - a design constraint explicitly documented for R5F10366ASM#15.
What serial communication interfaces are supported by the R5F10366ASM#15?
The R5F10366ASM#15 supports one UART channel (RxD0/TxD0), one simplified SPI (CSI00) channel, and zero I²C channels. Unlike R5F102-series variants, it lacks simplified I²C and DMA functionality per RL78/G12 family differentiation rules. These interface limitations are inherent to the R5F10366ASM#15's silicon configuration and cannot be enabled via software or configuration registers.
What is the oscillator accuracy specification for the R5F10366ASM#15?
The high-speed on-chip oscillator of the R5F10366ASM#15 has an accuracy of ±5.0% over the full operating temperature range of –40 to +85°C, as specified in Section 1.3.2(2) of the RL78/G12 datasheet. This tolerance is looser than the ±1.0% offered by R5F102-series parts but remains sufficient for UART communication at common baud rates (e.g., 9600 or 115200) when using oversampling techniques.
Can the R5F10366ASM#15 operate from a 1.8 V supply?
Yes, the R5F10366ASM#15 supports operation from 1.8 V to 5.5 V, as stated in the datasheet outline and electrical specifications. At 1.8 V, it maintains full functionality including 24 MHz operation (with reduced oscillator accuracy tolerance), ADC conversion, and peripheral operation - enabling direct interfacing with low-voltage sensors and energy-harvesting power sources without level-shifting circuitry.
R5F10366ASM#15 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:
- 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:
- 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#15 FAQ
1.How can I place an order for R5F10366ASM#15 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10366ASM#15 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#15 reliable?
The price and inventory of R5F10366ASM#15 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10366ASM#15 is usually 5 days.
3.What payment methods are accepted for R5F10366ASM#15?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10366ASM#15 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10366ASM#15?
R5F10366ASM#15 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10366ASM#15 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#15?
For technical support, including R5F10366ASM#15 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10366ASM#15 requirements.
6.How does Aetrix verify that R5F10366ASM#15 is sourced from the original manufacturer or authorized distributors?
All R5F10366ASM#15 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#15 meets industry standards.
7.What is the process for return or replacement of R5F10366ASM#15?
All R5F10366ASM#15 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10366ASM#15, 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#15 part is unused and in its original packaging.
Return procedure for R5F10366ASM#15:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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