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Renesas R5F10368ASP#X0
- Part No.:
- R5F10368ASP#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 20-LSSOP (0.173", 4.40mm Width)
- Datasheet:
-
R5F10368ASP#X0.pdf
- Description:
- IC MCU 16BIT 8KB FLASH 20LSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,234
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Product details
Overview
R5F10368ASP#X0 from Renesas Electronics is a 20-pin LSSOP ultra-low-power 16-bit RL78/G12 microcontroller designed for cost-sensitive consumer and industrial embedded control. It integrates 8 KB code flash, 512 B RAM, 10-bit 8-channel ADC, single UART, one simplified SPI (CSI), and operates from 1.8 V to 5.5 V with HALT/STOP/SNOOZE low-power modes - enabling battery-powered sensor nodes and smart home peripherals.
For engineers reviewing the R5F10368ASP#X0 datasheet, R5F10368ASP#X0 pinout, R5F10368ASP#X0 application, or R5F10368ASP#X0 equivalent, this page delivers verified specifications, package mapping, functional role in signal acquisition and local control, and validated alternative options for design continuity and supply resilience.
Technical Context
The R5F10368ASP#X0 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting 0.04167 µs minimum instruction execution at 24 MHz via high-speed on-chip oscillator (±5.0% accuracy over –40°C to +85°C). It lacks data flash memory and DMA channels - distinguishing it from R5F102x variants - and uses fixed-function peripheral I/O without programmable redirection for CSI, UART, and timer outputs.
Its 20-pin LSSOP package supports 18 I/O pins including two 6-V-tolerant N-ch open-drain ports, AVREFP/AVREFM analog references, and dedicated reset (P125/KR1) and crystal (P121/X1, P122/X2) terminals. The device relies on internal power-on-reset and 12-level voltage detector for robust brown-out handling across its full 1.8–5.5 V operating range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline; enables deterministic real-time control with 31 DMIPS @ 24 MHz |
| Memory Configuration | 8 KB code flash (1 KB block size), 512 B RAM; no data flash - simplifies firmware update logic and reduces BOM cost |
| Operating Voltage | 1.8 V to 5.5 V; supports direct interface with 1.8 V, 2.5 V, 3.3 V, and 5 V peripherals without level shifters |
| Analog Peripherals | 10-bit 8-channel ADC with internal 1.45 V reference and temperature sensor; suitable for thermal monitoring and analog sensor digitization |
| Low-Power Modes | HALT (63 μA/MHz), STOP (0.52 μA), SNOOZE (active background ADC + UART wake); extends battery life in intermittent-sensing applications |
| Serial Interfaces | 1 UART channel (RxD0/TxD0), 1 simplified SPI (CSI00), no I²C - optimized for point-to-point sensor or actuator communication |
| Timer Resources | 4-channel 16-bit TAU timer (3 PWM-capable), 12-bit interval timer, watchdog timer; sufficient for motor control timing and periodic housekeeping |
Pinout & Package
Package: 20-pin plastic LSSOP (4.4 × 6.5 mm, 0.65-mm pitch), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P125/KR1/SI01/RESET | Reset input / SPI slave-in | Active-low hardware reset; also serves as SPI data input when configured - requires external pull-up for reliable reset assertion |
| P121/X1 & P122/X2 | Crystal oscillator inputs | Supports 1–20 MHz external crystal; enables precise timing for UART baud generation and synchronous comms |
| P11/ANI17/SI00/RxD0/SDA00/TOOLRxD | UART receive / SPI slave-in / debug RX | Multi-function pin: primary use is UART RxD; shares with SPI SI00 and on-chip debug interface - not simultaneously active |
| P12/ANI18/SO00/TxD0/TOOLTxD | UART transmit / SPI slave-out / debug TX | Primary UART TxD; also SPI SO00 output and debug TX - enables firmware upload and runtime logging via same pins |
| P20/ANI0/AVREFP & P21/ANI1/AVREFM | Analog input / ADC reference | Dedicated analog reference pair; AVREFP sets upper bound (up to VDD), AVREFM sets lower bound (typically GND or bias) |
| P40/KR0/TOOL0 | Key return / debug I/O | Configurable as key-scan input or debug data line; supports low-pin-count keypad interfaces without external scan controller |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power operation | 63 μA/MHz active current enables >5-year battery life in coin-cell-powered IoT endpoints with 1% duty cycle |
| No data flash memory | Eliminates need for flash wear leveling and background erase management - reduces firmware complexity and validation effort |
| Single UART + CSI interface | Simplifies PCB routing and driver development for basic serial telemetry (e.g., sensor data to MCU host or display module) |
| On-chip voltage detector (12 levels) | Enables configurable brown-out detection down to 1.88 V - critical for stable operation in wide-input-voltage DC-DC systems |
| Hardware CRC and RAM guard | Not implemented - distinguishes R5F10368ASP#X0 from R5F102x series; reduces die area and cost for non-safety-critical applications |
Applications
| Smart Thermostat Sensor Node | Industrial Panel Indicator |
|---|---|
Use Scenario: Local ambient temperature and humidity sensing with LED status feedback and wireless uplink via UART-connected transceiver. IC Role / Device Role / Timing Role: Primary system controller executing sensor polling, ADC conversion, LED/PWM dimming, and UART packet framing. Use Value: 8-channel ADC captures multiple sensor inputs; SNOOZE mode enables 10-ms wake intervals with sub-μA sleep current - extending CR2032 battery life beyond 3 years. |
Use Scenario: Standalone front-panel indicator with push-button inputs, dual-color LEDs, and RS-485 interface to PLC. IC Role / Device Role / Timing Role: Input scanner and output driver managing 6-key matrix, 4-LED outputs, and half-duplex UART-to-RS485 translation. Use Value: 18 GPIOs include 2x 6-V-tolerant N-ch open-drain pins for direct LED drive; built-in key interrupt reduces polling overhead and improves response latency. |
| USB-C Power Monitor | White Goods Control Module |
Use Scenario: Real-time voltage/current measurement and protocol negotiation in USB-C PD sink adapters. IC Role / Device Role / Timing Role: Analog front-end controller acquiring VBUS/CC-line signals and managing state machine for PD communication handshake. Use Value: 10-bit ADC with internal reference ensures ±1% measurement accuracy across 1.8–5.5 V supply; HALT mode allows fast wake on CC-line activity. |
Use Scenario: Appliance subsystem controlling motor speed, door lock, and user interface in washing machines or dishwashers. IC Role / Device Role / Timing Role: Secondary MCU handling UI buttons, buzzer feedback, and motor enable/disable sequencing under main controller supervision. Use Value: Programmable clock/buzzer output (PCLBUZ0) drives audible alerts without external driver; 4-channel TAU timers support precise motor phase timing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10268ASP#X0 | Same package and pinout; adds 2 KB data flash, DMA, CRC, RAM guard, and ±1.0% oscillator accuracy | Required for field-upgradable firmware or safety-certified designs needing data logging or integrity checks | Select R5F10268ASP#X0 only if data flash write endurance (1M cycles) and enhanced oscillator stability are mandatory |
| R5F103AAASP#X0 | 30-pin LSSOP variant with 16 KB flash, 2 KB RAM, 8-channel ADC, and additional UART/CSI channels | Suitable for designs requiring more memory, I/O, or dual serial interfaces (e.g., UART + CSI + buzzer) | Choose R5F103AAASP#X0 when scaling functionality without changing core firmware architecture - same RL78/G12 ISA and toolchain |
Compared with R5F10268ASP#X0, the R5F10368ASP#X0 trades data flash and precision timing for lower unit cost and reduced firmware overhead; versus R5F103AAASP#X0, it offers identical feature set in a smaller footprint and lower pin count - ideal for space-constrained, cost-optimized control nodes.
Availability
R5F10368ASP#X0 is available at Aetrix Electronics and suitable for smart home sensors, industrial HMI indicators, USB-C power monitors, and white goods subsystems requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for R5F10368ASP#X0 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 headquartered in Tokyo, Japan, delivering microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.
The RL78/G12 product line targets cost-sensitive, ultra-low-power general-purpose embedded control - emphasizing energy efficiency, small form factor, and seamless integration with legacy 8-bit designs through compatible toolchains and peripheral models.
FAQ
What is the maximum operating frequency of the R5F10368ASP#X0?
The R5F10368ASP#X0 supports a maximum system clock frequency of 24 MHz using its high-speed on-chip oscillator. This yields 31 DMIPS performance and enables UART baud rates up to 1 Mbps at standard oversampling. External crystal operation is limited to 20 MHz per electrical specifications, and all timing parameters assume VDD ≥ 2.7 V for full-speed operation.
Does the R5F10368ASP#X0 include data flash memory?
No, the R5F10368ASP#X0 does not include data flash memory. As confirmed in the RL78/G12 datasheet Section 1.3.1, R5F103 products omit the 2 KB data flash present in R5F102 variants. Firmware must store configuration or calibration data in code flash (with self-programming library) or external EEPROM, as no dedicated data flash sector exists on the R5F10368ASP#X0 die.
What are the low-power modes supported by the R5F10368ASP#X0?
The R5F10368ASP#X0 supports HALT (63 μA/MHz), STOP (0.52 μA typical), and SNOOZE modes. In SNOOZE, the 12-bit interval timer and ADC can operate autonomously while CPU sleeps, enabling wake-on-conversion or periodic sampling. All modes retain RAM content and allow wake via external interrupt, timer match, or UART start-bit detection - critical for battery-operated edge devices.
Which serial interfaces are available on the R5F10368ASP#X0?
The R5F10368ASP#X0 provides one UART channel (RxD0/TxD0), one simplified SPI interface (CSI00), and no I²C interface. CSI00 supports master/slave operation with configurable clock polarity and phase but lacks multi-master arbitration or address-based addressing. UART supports full-duplex asynchronous communication with programmable baud rate generation from internal or external clocks.
Is the R5F10368ASP#X0 pin-compatible with other RL78/G12 20-pin variants?
Yes, the R5F10368ASP#X0 shares identical 20-pin LSSOP pinout and function mapping with other R5F1036x variants (e.g., R5F10367ASP#X0, R5F10369ASP#X0) and R5F1026x parts like R5F10268ASP#X0. Pin functions such as RESET (P125), X1/X2 (P121/P122), and UART (P11/P12) are consistent across the 20-pin RL78/G12 family - enabling drop-in replacement where memory and peripheral requirements align.
R5F10368ASP#X0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 20-LSSOP (0.173", 4.40mm Width)
- Series:
- RL78/G12
- Packaging:
- Bulk
- 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:
- 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#X0 FAQ
1.How can I place an order for R5F10368ASP#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10368ASP#X0 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#X0 reliable?
The price and inventory of R5F10368ASP#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10368ASP#X0 is usually 5 days.
3.What payment methods are accepted for R5F10368ASP#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10368ASP#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10368ASP#X0?
R5F10368ASP#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10368ASP#X0 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#X0?
For technical support, including R5F10368ASP#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10368ASP#X0 requirements.
6.How does Aetrix verify that R5F10368ASP#X0 is sourced from the original manufacturer or authorized distributors?
All R5F10368ASP#X0 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#X0 meets industry standards.
7.What is the process for return or replacement of R5F10368ASP#X0?
All R5F10368ASP#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10368ASP#X0, 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#X0 part is unused and in its original packaging.
Return procedure for R5F10368ASP#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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