My Inquiry
My Account
Renesas R5F10366ASP#X5
- Part No.:
- R5F10366ASP#X5
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 20-LSSOP (0.173", 4.40mm Width)
- Datasheet:
-
R5F10366ASP#X5.pdf
- Description:
- IC MCU 16BIT 2KB FLASH 20LSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,966
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
R5F10366ASP#X5 from Renesas Electronics is a 20-pin LSSOP ultra-low-power 16-bit RL78/G12 microcontroller designed for cost-sensitive consumer applications. It features 2 KB code flash, 256 B RAM, 10-bit A/D converter with 8 input channels, 4-channel 16-bit timer, and single UART interface - all operating across 1.8–5.5 V supply at –40°C to +85°C ambient temperature.
For engineers reviewing the R5F10366ASP#X5 datasheet, R5F10366ASP#X5 pinout, R5F10366ASP#X5 application, or R5F10366ASP#X5 equivalent, key selection considerations include its lack of data flash memory, absence of DMA and safety functions (CRC/SFR guard), reduced peripheral count versus R5F102 variants, and ±5.0% high-speed on-chip oscillator accuracy over full temperature range.
Technical Context
The R5F10366ASP#X5 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, delivering 31 DMIPS at 24 MHz while consuming only 63 μA/MHz in active mode. Its instruction execution time scales from 0.04167 μs (24 MHz on-chip oscillator) to 1 μs (1 MHz low-speed operation), supporting flexible power/performance trade-offs.
It integrates a 10-bit A/D converter with internal 1.45 V reference and temperature sensor, supports multiple low-power modes (HALT, STOP, SNOOZE), and provides programmable clock/buzzer output via PCLBUZ0. The device lacks data flash, DMA, simplified I²C, and safety features found in R5F102-series counterparts.
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 1.8/2.5/3.3 V logic without level shifters |
| Flash / RAM | 2 KB code flash, 256 B RAM - sufficient for compact firmware with minimal data buffering |
| A/D Converter | 10-bit resolution, 8 input channels, internal 1.45 V reference - supports analog sensing without external reference |
| Timers | 4-channel 16-bit timer (TAU0), 12-bit interval timer, watchdog timer - suitable for motor control timing and system supervision |
| Serial Interfaces | 1 UART channel, 1 CSI (SPI-like) channel - adequate for basic host communication and sensor interfacing |
| Power Modes | HALT, STOP, SNOOZE - enables sub-μA sleep current for battery-powered devices |
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 / Clock/buzzer output / SPI clock / I²C clock | Multi-function pin supporting timing generation, serial comms, and analog sensing - configurable via PIOR register |
| P11/ANI17/SI00/RxD0/SDA00/TOOLRxD | Port 1 bit 1 / Analog input 17 / SPI input / UART receive / I²C data / debug RX | Shared UART/I²C/CSI input with on-chip debug support - simplifies board-level debug interface |
| P12/ANI18/SO00/TxD0/TOOLTxD | Port 1 bit 2 / Analog input 18 / SPI output / UART transmit / debug TX | Combined UART transmit and SPI output reduces pin count for dual-interface designs |
| P13/ANI19/TI00/TO00/INTP2 | Port 1 bit 3 / Analog input 19 / Timer input / Timer output / External interrupt 2 | Hardware timer capture/compare and interrupt capability - enables precise event timing and edge detection |
| P14/ANI20/TI01/TO01/INTP3 | Port 1 bit 4 / Analog input 20 / Timer input / Timer output / External interrupt 3 | Dual timer I/O with interrupt support - suitable for PWM generation and quadrature decoding |
| P20/ANI0/AVREFP | Port 2 bit 0 / Analog input 0 / Positive analog reference | Provides dedicated AVREFP connection - improves A/D accuracy when using external reference sources |
| P21/ANI1/AVREFM | Port 2 bit 1 / Analog input 1 / Negative analog reference | Enables differential analog measurements with AVREFP - supports ratiometric sensor interfaces |
| P22/ANI2 | Port 2 bit 2 / Analog input 2 | General-purpose analog input - usable for voltage monitoring or thermistor reading |
| P23/ANI3 | Port 2 bit 3 / Analog input 3 | Additional analog input - expands sensor count without external multiplexer |
| P40/KR0/TOOL0 | Port 4 bit 0 / Key return 0 / Debug I/O | Supports key scan matrix and on-chip debug communication - reduces BOM for HMI applications |
| P41/ANI22/SO01/SDA01/TI02/TO02/INTP1 | Port 4 bit 1 / Analog input 22 / SPI output / I²C data / Timer input/output / Interrupt 1 | Highly multiplexed pin enabling analog sensing, serial comms, and timer functions - maximizes peripheral density |
| P42/ANI21/SCK01/SCL01/TI03/TO03 | Port 4 bit 2 / Analog input 21 / SPI clock / I²C clock / Timer input/output | Combines clock generation, analog input, and timer I/O - ideal for synchronized sensor acquisition |
| 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 - allows direct interface with 5 V I²C buses |
| P61/KR5/SDAA0/(RxD0) | Port 6 bit 1 / Key return 5 / I²C data / UART receive (remapped) | Complements P60 for I²C bus implementation - supports standard 400 kHz I²C without external pull-ups |
| P121/KR3/X1/(TI03)/(INTP3) | Port 12 bit 1 / Key return 3 / Crystal input / Timer input / Interrupt 3 | Primary crystal oscillator input - requires external 1–20 MHz resonator for precise timing |
| P122/KR2/X2/EXCLK/(TI02)/(INTP2) | Port 12 bit 2 / Key return 2 / Crystal output / External clock input / Timer input / Interrupt 2 | Crystal output or external clock source - enables synchronous system timing from external MCU or clock generator |
| P125/KR1/SI01/RESET | Port 12 bit 5 / Key return 1 / SPI input / Reset input | Active-low reset with Schmitt-trigger input - ensures reliable power-on and fault recovery |
| P137/INTP0 | Port 13 bit 7 / External interrupt 0 | Dedicated interrupt pin - enables fast response to external events without port scanning |
| VDD | Power supply | Single 1.8–5.5 V supply - eliminates need for separate analog/digital rails |
| VSS | Ground | Common reference for all digital and analog circuits - must be low-impedance for A/D accuracy |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low active current | 63 μA/MHz - extends battery life in portable remote controls and sensors |
| No data flash memory | Eliminates 2 KB data flash area - reduces die size and cost for firmware-only storage needs |
| ±5.0% oscillator accuracy | Meets timing requirements for UART comms and non-critical real-time tasks without external crystal |
| On-chip debug interface | Integrated TOOLRxD/TOOLTxD pins - enables in-circuit programming and debugging without external JTAG adapter |
| 10-bit A/D with temp sensor | Internal temperature sensor and 1.45 V reference - enables self-calibration and thermal monitoring |
| Key return inputs (KR0–KR5) | 6 dedicated key-scan inputs - reduces GPIO usage and firmware overhead in keypad-based HMI |
Applications
| Home Appliance Control | Industrial Sensor Node |
|---|---|
Use Scenario: Microcontroller in compact washing machine control panel managing motor sequencing, water level sensing, and user interface. IC Role / Device Role / Timing Role: Main system controller executing state-machine logic, driving relay outputs, and sampling analog pressure/temperature sensors. Use Value: 2 KB flash and 256 B RAM accommodate basic motor control firmware; 10-bit A/D supports accurate water temperature measurement; UART enables service diagnostics. |
Use Scenario: Standalone environmental monitor deployed in factory HVAC ducts measuring temperature, humidity, and airflow. IC Role / Device Role / Timing Role: Data acquisition engine performing periodic sensor reads, local threshold checking, and UART-based alert transmission. Use Value: Ultra-low 63 μA/MHz active current extends battery life; internal temperature sensor enables self-compensation; SNOOZE mode reduces average power to <1 μA between samples. |
| Consumer Remote Control | Smart Lighting Driver |
Use Scenario: IR remote control unit with multi-button keypad, LED feedback, and IR emitter for TV/audio equipment. IC Role / Device Role / Timing Role: Keypad scanner and IR protocol encoder generating NEC or RC-5 modulated carrier signals. Use Value: Six KR inputs simplify mechanical keypad wiring; PCLBUZ0 pin generates precise 38 kHz carrier; low-voltage operation (1.8 V) enables single-cell alkaline battery use. |
Use Scenario: Dimmable LED driver module in smart bulb design requiring PWM brightness control and thermal foldback protection. IC Role / Device Role / Timing Role: PWM generator and thermal supervisor using TAU0 timer outputs and internal temperature sensor readings. Use Value: Four 16-bit timer channels support independent dimming of RGBW LEDs; 10-bit A/D monitors heatsink temperature; 1.8–5.5 V range accommodates buck-converter output rails. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10266ASP#X5 | Includes 2 KB data flash, CRC/SFR guard, DMA, ±1.0% oscillator accuracy, and additional CSI/I²C channels | Required for firmware-over-the-air updates, safety-critical checksum validation, or higher-bandwidth sensor fusion | Select when data logging, functional safety compliance, or enhanced peripheral flexibility is needed - at higher cost and power |
| R5F10368ASP#X5 | Same package and core but with 4 KB code flash and 512 B RAM - no data flash or safety features | Suitable for larger firmware images requiring more program space without added peripherals | Choose for incremental firmware growth beyond 2 KB while retaining identical pinout, power profile, and peripheral set |
Compared with R5F10266ASP#X5, the R5F10366ASP#X5 trades data flash, DMA, and tighter oscillator tolerance for lower cost and reduced power consumption; compared with R5F10368ASP#X5, it offers smaller flash/RAM footprint for minimal firmware deployments where memory headroom is constrained.
Availability
R5F10366ASP#X5 is available at Aetrix Electronics and suitable for home appliance control, industrial sensor nodes, consumer remote controls, and smart lighting drivers requiring stable component supply and long-term production continuity.
Supply support for R5F10366ASP#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 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 consumer and industrial applications requiring extended battery life and simple integration.
FAQ
What is the maximum operating frequency of the R5F10366ASP#X5?
The R5F10366ASP#X5 supports up to 24 MHz operation using its high-speed on-chip oscillator, delivering 31 DMIPS performance. When using an external crystal (X1/X2), the maximum system clock is 20 MHz under 2.7–5.5 V supply conditions, or 8 MHz at 1.8–2.4 V. The minimum instruction execution time is 0.04167 μs at 24 MHz.
Does the R5F10366ASP#X5 include data flash memory?
No, the R5F10366ASP#X5 does not include data flash memory. This is a defining distinction from the R5F102-series variants. The device provides only 2 KB of code flash memory and 256 B of RAM. Data storage must be implemented externally or via code flash reprogramming with appropriate wear-leveling.
What are the key differences between R5F10366ASP#X5 and R5F10266ASP#X5?
The R5F10366ASP#X5 omits data flash memory, DMA controller, CRC operation, RAM guard, and SFR guard functions present in the R5F10266ASP#X5. It also has reduced oscillator accuracy (±5.0% vs. ±1.0%) and fewer serial interface channels (1 CSI only, no simplified I²C). These omissions reduce cost and power consumption for less demanding applications.
Which development tools support the R5F10366ASP#X5?
The R5F10366ASP#X5 is supported by Renesas' CS+ IDE, e² studio, and IAR Embedded Workbench. Hardware debugging uses the on-chip debug interface via TOOLRxD/TOOLTxD pins (P11/P12), eliminating the need for external debug probes. Renesas' E1 emulator and commercially available SWD adapters are compatible.
What is the operating temperature range for the R5F10366ASP#X5?
The R5F10366ASP#X5 is rated for operation from –40°C to +85°C, designated for consumer applications (suffix 'A'). It is not qualified for industrial-grade temperature ranges (–40°C to +105°C, suffix 'G') or extended industrial (–40°C to +85°C with enhanced reliability, suffix 'D'). Designers must verify thermal margins within this range.
R5F10366ASP#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:
- 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:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F10366ASP#X5 FAQ
1.How can I place an order for R5F10366ASP#X5 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10366ASP#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 R5F10366ASP#X5 reliable?
The price and inventory of R5F10366ASP#X5 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10366ASP#X5 is usually 5 days.
3.What payment methods are accepted for R5F10366ASP#X5?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10366ASP#X5 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10366ASP#X5?
R5F10366ASP#X5 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10366ASP#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 R5F10366ASP#X5?
For technical support, including R5F10366ASP#X5 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10366ASP#X5 requirements.
6.How does Aetrix verify that R5F10366ASP#X5 is sourced from the original manufacturer or authorized distributors?
All R5F10366ASP#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 R5F10366ASP#X5 meets industry standards.
7.What is the process for return or replacement of R5F10366ASP#X5?
All R5F10366ASP#X5 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10366ASP#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 R5F10366ASP#X5 part is unused and in its original packaging.
Return procedure for R5F10366ASP#X5:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F10366ASP#X5 Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
