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Renesas R5F10368ASP#55
- Part No.:
- R5F10368ASP#55
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 20-LSSOP (0.173", 4.40mm Width)
- Datasheet:
-
R5F10368ASP#55.pdf
- Description:
- IC MCU 16BIT 8KB FLASH 20LSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:7,990
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Product details
Overview
R5F10368ASP#55 from Renesas Electronics is a 20-pin LSSOP RL78/G12 16-bit microcontroller designed for ultra-low-power embedded control in consumer-grade applications (–40°C to +85°C). It integrates 8 KB code flash, 512 B RAM, 10-bit A/D converter with 11 channels, and operates from 1.8 V to 5.5 V at up to 24 MHz - delivering 31 DMIPS while consuming only 63 μA/MHz. It targets battery-powered sensor nodes and smart home peripherals requiring compact size, low active current, and integrated analog I/O.
For engineers reviewing the R5F10368ASP#55 datasheet, R5F10368ASP#55 pinout, R5F10368ASP#55 application, or R5F10368ASP#55 equivalent, key selection considerations include its lack of data flash memory (vs. R5F102 series), single UART channel, absence of DMA and safety features (CRC/SFR guard), and ±5.0% high-speed on-chip oscillator accuracy over –40°C to +85°C - all critical for timing-sensitive, cost-optimized control designs.
Technical Context
The R5F10368ASP#55 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting 1 MB address space and 8-bit register banks. Its clock system combines a high-speed on-chip oscillator (selectable 1–24 MHz, ±5.0% accuracy) with low-speed 15 kHz internal oscillator and external crystal support (X1/X2, up to 20 MHz).
Peripheral integration includes one 16-bit timer array (TAU0) with 4 channels, one watchdog timer, one 12-bit interval timer, simplified SPI (CSI00), UART0, and I²C-compatible interface (IICA0). It lacks DMA, data flash, and simplified I²C (IIC00/IIC01), distinguishing it from R5F1026x variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC CPU with 3-stage pipeline, 1 MB address space |
| Operating Voltage | 1.8 V to 5.5 V - enables direct battery operation (e.g., two AA/AAA cells) without LDO |
| Max Clock Speed | 24 MHz (via high-speed on-chip oscillator) - delivers 31 DMIPS performance |
| Memory Resources | 8 KB code flash (1 KB block size), 512 B RAM - sufficient for compact firmware with real-time control loops |
| A/D Converter | 10-bit resolution, 11 input channels, internal 1.45 V reference - supports multi-sensor analog acquisition |
| Temperature Range | –40°C to +85°C (Consumer grade "A" variant) - validated for indoor ambient environments |
| Power Consumption | 63 μA/MHz in active mode - reduces battery drain in always-on sensing applications |
Pinout & Package
Package: 20-pin plastic LSSOP (4.4 × 6.5 mm, 0.65-mm pitch), RoHS-compliant, moisture sensitivity level (MSL) 3.
| 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 communication (SPI/I²C) 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 UART receive and SPI input - requires peripheral I/O redirection (PIOR) for function selection |
| P12/ANI18/SO00/TxD0/TOOLTxD | Port 1 bit 2 / Analog Input 18 / SPI Data Out / UART Transmit / I²C Data / Debug TX | Enables full-duplex UART or SPI master/slave operation with tool interface capability |
| P13/ANI19/TI00/TO00/INTP2 | Port 1 bit 3 / Analog Input 19 / Timer Input 0 / Timer Output 0 / External Interrupt 2 | Supports edge-triggered capture, PWM output, or interrupt-driven event handling |
| P14/ANI20/TI01/TO01/INTP3 | Port 1 bit 4 / Analog Input 20 / Timer Input 1 / Timer Output 1 / External Interrupt 3 | Dual timer I/O with interrupt capability - ideal for quadrature decoding or pulse-width measurement |
| P20/ANI0/AVREFP | Port 2 bit 0 / Analog Input 0 / A/D Positive Reference | Provides dedicated analog reference voltage input - improves ADC accuracy when externally buffered |
| P21/ANI1/AVREFM | Port 2 bit 1 / Analog Input 1 / A/D Negative Reference | Enables differential analog measurements or ratiometric sensor interfacing |
| P22/ANI2 | Port 2 bit 2 / Analog Input 2 | General-purpose analog input - usable with internal temperature sensor or external voltage dividers |
| P23/ANI3 | Port 2 bit 3 / Analog Input 3 | Additional analog channel - supports multi-channel sensor fusion in space-constrained layouts |
| P40/KR0/TOOL0 | Port 4 bit 0 / Key Return 0 / Debug Interface | Configurable as wake-up input from keypad or debug communication line |
| P41/ANI22/SO01/SDA01/TI02/TO02/INTP1 | Port 4 bit 1 / Analog Input 22 / SPI Data Out / I²C Data / Timer Input 2 / Timer Output 2 / Interrupt 1 | High-flexibility pin enabling mixed analog/digital/timer functions with minimal external components |
| P42/ANI21/SCK01/SCL01/TI03/TO03 | Port 4 bit 2 / Analog Input 21 / SPI Clock / I²C Clock / Timer Input 3 / Timer Output 3 | Second SPI/I²C interface clock - allows dual serial bus operation (e.g., sensor + display) |
| P60/KR4/SCLA0/(TxD0) | Port 6 bit 0 / Key Return 4 / I²C Clock / UART Transmit (remapped) | Alternate UART transmit path - provides layout flexibility when P12 is unavailable |
| P61/KR5/SDAA0/(RxD0) | Port 6 bit 1 / Key Return 5 / I²C Data / UART Receive (remapped) | Alternate UART receive path - supports pin multiplexing for board-level routing optimization |
| P121/KR3/X1/(TI03)/(INTP3) | Port 12 bit 1 / Key Return 3 / Crystal Oscillator Input / Timer Input / Interrupt | Primary crystal connection point - must be used with X2 for stable system clock generation |
| P122/KR2/X2/EXCLK/(TI02)/(INTP2) | Port 12 bit 2 / Key Return 2 / Crystal Oscillator Output / External Clock Input / Timer Input / Interrupt | Completes crystal circuit - also accepts external clock source for synchronous timing systems |
| P125/KR1/SI01/RESET | Port 12 bit 5 / Key Return 1 / SPI Data In / Reset Input | Active-low hardware reset - overrides all internal reset sources and forces CPU initialization |
| P137/INTP0 | Port 13 bit 7 / External Interrupt 0 | Dedicated wake-up/interrupt pin - supports low-power HALT/STOP mode exit on external event |
| 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 - requires low-impedance PCB return path |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power consumption | 63 μA/MHz active current enables >1-year battery life in coin-cell-powered devices |
| Flexible clock system | Selectable high-speed on-chip oscillator (1–24 MHz, ±5.0%) eliminates external crystal cost in non-critical timing apps |
| Integrated analog front-end | 10-bit A/D with 11 channels and internal reference supports direct sensor interfacing without external op-amps |
| Multi-protocol serial interfaces | UART0 + CSI00 (SPI-like) + IICA0 (I²C-compatible) enable connectivity to diverse peripherals (sensors, displays, EEPROMs) |
| Hardware timer resources | 4-channel 16-bit TAU0 with PWM, capture, and compare modes simplifies motor control and signal generation |
| On-chip debug support | Fully integrated debug interface via TOOL0/TOOLRxD/TOOLTxD pins - no external debugger required for development |
Applications
| Smart Thermostat Sensor Node | Wireless Doorbell Transmitter |
|---|---|
Use Scenario: Battery-powered indoor temperature/humidity sensor transmitting data via sub-GHz RF module. IC Role / Device Role / Timing Role: Main controller managing ADC sampling, sensor calibration, low-power sleep scheduling, and UART-based RF command framing. Use Value: 63 μA/MHz active current and STOP mode extend CR2032 battery life beyond 2 years; integrated 10-bit ADC eliminates external signal conditioning. |
Use Scenario: Compact doorbell button PCB with push-button wake-up, LED feedback, and ASK/OOK RF transmission. IC Role / Device Role / Timing Role: System-on-chip handling button debouncing, LED drive timing, and precise RF carrier generation using PCLBUZ0. Use Value: Single 8 KB flash MCU replaces discrete logic + timer IC; programmable clock output generates stable 315/433 MHz carrier harmonics. |
| USB-C Power Monitor Module | Industrial Panel Indicator |
Use Scenario: USB-C PD sink accessory measuring VBUS voltage/current and displaying status via I²C-connected OLED. IC Role / Device Role / Timing Role: Analog acquisition engine (ADC on ANI0–ANI3), I²C master to OLED, and UART host interface for configuration. Use Value: 11-channel ADC captures simultaneous voltage, current, and temperature; IICA0 supports standard I²C protocol without software bit-banging. |
Use Scenario: DIN-rail mounted indicator with 4-digit LED display, pushbutton inputs, and relay control for HVAC status reporting. IC Role / Device Role / Timing Role: Real-time state machine executing LED multiplexing, key scan, and relay timing via TAU0 PWM outputs. Use Value: 4-channel TAU0 provides independent 8-bit PWM for LED brightness control; KR0–KR5 key return inputs reduce external GPIO expander count. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10268ASP#55 | Includes 2 KB data flash, CRC/SFR guard, DMA, ±1.0% oscillator accuracy, and simplified I²C (IIC00/IIC01) | Required for field firmware updates, safety-critical logging, or higher-precision timing (e.g., metering) | Choose when data retention, functional safety, or tighter clock tolerance is mandatory - adds ~$0.15 cost |
| R5F1036AASP#55 | Same package and pinout but with 16 KB code flash, 2 KB RAM, and identical peripheral set | Suitable for larger firmware (e.g., BLE stack integration, advanced UI rendering) | Choose when firmware growth exceeds 8 KB - same PCB layout, no redesign needed |
Compared with R5F10268ASP#55, the R5F10368ASP#55 trades data flash and safety features for lower cost and reduced power in non-updatable, timing-tolerant applications; versus R5F1036AASP#55, it offers identical functionality at lower memory density - ideal for cost-sensitive, fixed-function deployments.
Availability
R5F10368ASP#55 is available at Aetrix Electronics and suitable for smart home sensors, wireless transmitters, USB-C monitors, and industrial indicators requiring stable component supply across production lifecycles.
Supply support for R5F10368ASP#55 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, and power management ICs for automotive, industrial, and IoT markets.
The RL78/G12 product line delivers true low-power 16-bit MCUs targeting cost-sensitive, battery-operated consumer and industrial control applications - emphasizing energy efficiency, integrated analog, and rapid time-to-market.
FAQ
What is the maximum operating frequency and corresponding performance of the R5F10368ASP#55?
The R5F10368ASP#55 achieves a maximum operating frequency of 24 MHz using its high-speed on-chip oscillator, delivering 31 DMIPS of processing performance. This speed is fully supported across its 1.8 V to 5.5 V supply range and –40°C to +85°C temperature specification. The instruction execution time is 0.04167 µs at 24 MHz, enabling responsive real-time control in applications such as sensor polling and LED dimming.
Does the R5F10368ASP#55 include data flash memory?
No, the R5F10368ASP#55 does not include data flash memory. As confirmed in the RL78/G12 datasheet section 1.3.1, R5F103 products (including R5F10368ASP#55) omit the 2 KB data flash present in R5F102 variants. Firmware updates must be implemented via code flash reprogramming, and non-volatile parameter storage requires external EEPROM or FRAM if retained across power cycles.
What are the key differences between R5F10368ASP#55 and R5F10268ASP#55?
The R5F10368ASP#55 differs from R5F10268ASP#55 in four critical areas: it lacks data flash memory (2 KB absent), omits DMA controller (2 channels missing), excludes safety features (CRC operation, SFR guard, RAM guard), and has lower high-speed oscillator accuracy (±5.0% vs. ±1.0%). These omissions reduce cost and power but limit use in applications requiring field updates, safety certification, or precise timing.
Which serial communication interfaces are available on the R5F10368ASP#55?
The R5F10368ASP#55 provides UART0 (1 channel), simplified SPI (CSI00, 1 channel), and I²C-compatible interface (IICA0, 1 channel). It does not support simplified I²C (IIC00/IIC01) or additional UART/CSI channels found in R5F1026x variants. All three interfaces share pins via peripheral I/O redirection (PIOR), allowing flexible assignment but requiring careful configuration during initialization.
What is the analog input capability of the R5F10368ASP#55?
The R5F10368ASP#55 integrates an 8/10-bit resolution A/D converter with 11 input channels (ANI0–ANI3, ANI16–ANI22), internal 1.45 V reference voltage, and built-in temperature sensor. It operates across the full 1.8 V to 5.5 V supply range, supporting ratiometric measurements using AVREFP/AVREFM pins. No external reference or signal conditioning is required for basic sensor interfacing.
R5F10368ASP#55 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:
- 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:
- 8KB (8K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 768 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:
R5F10368ASP#55 FAQ
1.How can I place an order for R5F10368ASP#55 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10368ASP#55 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 R5F10368ASP#55 reliable?
The price and inventory of R5F10368ASP#55 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10368ASP#55 is usually 5 days.
3.What payment methods are accepted for R5F10368ASP#55?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10368ASP#55 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10368ASP#55?
R5F10368ASP#55 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10368ASP#55 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 R5F10368ASP#55?
For technical support, including R5F10368ASP#55 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10368ASP#55 requirements.
6.How does Aetrix verify that R5F10368ASP#55 is sourced from the original manufacturer or authorized distributors?
All R5F10368ASP#55 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 R5F10368ASP#55 meets industry standards.
7.What is the process for return or replacement of R5F10368ASP#55?
All R5F10368ASP#55 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10368ASP#55, 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 R5F10368ASP#55 part is unused and in its original packaging.
Return procedure for R5F10368ASP#55:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F10368ASP#55 Tags
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