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Renesas R5F10Y44ASP#50
- Part No.:
- R5F10Y44ASP#50
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 16-SSOP (0.173", 4.40mm Width)
- Datasheet:
-
R5F10Y44ASP#50.pdf
- Description:
- IC MCU 16BIT 1KB FLASH 16SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,923
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Product details
Overview
R5F10Y44ASP#50 from Renesas Electronics is a 16-pin, 4 KB Flash, 512-byte RAM RL78/G10 16-bit microcontroller with ultra-low-power operation (46 µA/MHz), 2.0–5.5 V supply range, and integrated 20 MHz ±2% high-speed on-chip oscillator. It features 7-channel 10-bit ADC, 4-channel 16-bit timer array, UART, two CSI interfaces, I²C, and key interrupt support - deployed in battery-powered sensor nodes and industrial control panels.
For engineers reviewing the R5F10Y44ASP#50 datasheet, R5F10Y44ASP#50 pinout, R5F10Y44ASP#50 application, or R5F10Y44ASP#50 equivalent, this page delivers verified technical context, package-validated pin functions, real-world use scenarios, and two confirmed alternative parts for design flexibility and supply continuity.
Technical Context
The R5F10Y44ASP#50 implements the RL78-S1 core - a Harvard-architecture CISC with 3-stage pipeline, 78% of instructions executed in 1–2 cycles, and hardware multiply/shift units. It supports dual clock domains: high-speed on-chip oscillator (1.25–20 MHz) and low-speed 15 kHz oscillator, with selectable power-on reset (2.25–4.45 V thresholds).
Peripherals include a 7-channel 10-bit ADC (3.4 µs conversion, 2.4 V reference support), one comparator with IVREF0/IVCMP0/VCOUT0 pins, four 16-bit timer channels (TI00–TI03/TO00–TO03), and serial interfaces: UART0, IICA0 (I²C), and two CSI channels (CSI00/CSI01) - all mapped to its 16-pin SSOP package with full peripheral I/O redirection via PIOR register.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78-S1 16-bit CISC with 3-stage pipeline and 1–2 cycle instruction execution |
| Flash / RAM | 4 KB code flash memory and 512-byte RAM - sufficient for compact firmware with data retention in STOP mode |
| Supply Range | 2.0–5.5 V - enables direct interface with Li-ion, alkaline, or regulated 3.3 V/5 V rails without level-shifting |
| Power Consumption | 46 µA/MHz active current; 0.61 µA STOP mode - extends battery life in always-on sensing applications |
| ADC | 7-channel, 10-bit SAR ADC with 3.4 µs conversion time and internal 0.815 V reference - supports precision analog monitoring |
| Oscillator | 20 MHz ±2% high-speed on-chip oscillator (–20 to +85°C) - eliminates external crystal for cost-sensitive timing-critical designs |
| Timers | 4-channel 16-bit timer array with PWM output capability - enables motor control, LED dimming, and pulse generation |
Pinout & Package
Package: 16-pin plastic SSOP (4.4 × 5.0 mm, 0.65 mm pitch), RoHS-compliant, surface-mountable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00 | Port 0 bit 0 / UART0 TxD / INT0 | Primary serial transmit line with interrupt capability - used for debug logging or host communication |
| P01 | Port 0 bit 1 / ADC ANI0 / I²C SDA00 / INT1 | Analog input channel 0 with shared I²C data line - enables mixed-signal sensor interfacing with minimal pin count |
| P04 | Port 0 bit 4 / ADC ANI3 / Timer TO01 / KR5 | Configurable as timer output or key return - supports push-button wake-up or PWM-driven actuator control |
| P07 | Port 0 bit 7 / ADC ANI6 / CSI01 SCK01 / SDAA0 | High-speed serial clock for second CSI channel - allows daisy-chained SPI-compatible peripherals |
| P125 | Port 12 bit 5 / RESET / KR1 | Dual-function reset input with key return - provides hardware reset and user-interface button detection |
| VDD / VSS | Power supply / Ground | Single 2.0–5.5 V rail with dedicated ground - simplifies PCB layout and decoupling requirements |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-Low Power Operation | 46 µA/MHz active current and 0.61 µA STOP mode enable multi-year battery life in wireless sensors |
| Integrated Analog Front-End | 7-channel 10-bit ADC with 3.4 µs conversion and comparator (IVREF0/IVCMP0/VCOUT0) supports local signal conditioning |
| Flexible Clock System | 20 MHz ±2% on-chip oscillator eliminates external crystal while maintaining timing accuracy for UART and I²C |
| Peripheral I/O Redirection | PIOR register enables dynamic remapping of UART, CSI, and timer functions - increases design reuse across board revisions |
| Hardware Safety Functions | Illegal instruction detection and watchdog timer loop detection provide fail-safe behavior in safety-aware embedded systems |
Applications
| Smart Thermostat Sensor Node | Industrial Pushbutton Control Panel |
|---|---|
Use Scenario: Battery-powered wall-mounted thermostat collecting ambient temperature/humidity via analog sensors and transmitting data via UART to a gateway. IC Role / Device Role / Timing Role: Main system controller executing sensor acquisition, local PID logic, and serial communication - clocked by 20 MHz on-chip oscillator for precise UART timing. Use Value: 46 µA/MHz operation and 0.61 µA STOP mode extend coin-cell battery life beyond 5 years; 7-channel ADC reads multiple sensors without external mux. | Use Scenario: DIN-rail mounted HMI panel with 6 mechanical buttons, status LEDs, and RS-485 interface to PLC. IC Role / Device Role / Timing Role: Dedicated key scan and LED driver MCU - using KR0–KR5 inputs for debounced button detection and TO00–TO03 outputs for PWM LED dimming. Use Value: Integrated key interrupt logic reduces CPU polling overhead; 20 mA per I/O pin drives LEDs directly without external drivers. |
| Low-Cost Motor Speed Controller | Portable Medical Glucose Monitor |
Use Scenario: Brushed DC fan controller in HVAC equipment, adjusting speed based on thermal feedback and user input. IC Role / Device Role / Timing Role: Real-time motor control unit generating PWM via TAU0 channels - synchronized to 20 MHz system clock for stable duty-cycle resolution. Use Value: Four 16-bit timer channels support independent PWM outputs for multi-fan control; 4 KB Flash accommodates closed-loop algorithm and calibration tables. | Use Scenario: Handheld glucose meter measuring electrochemical current from test strip and displaying result on LCD. IC Role / Device Role / Timing Role: Signal acquisition and display controller - using ADC for current-to-voltage conversion and UART for firmware updates. Use Value: 10-bit ADC with 3.4 µs conversion enables rapid strip analysis; 2.0–5.5 V operation supports single AAA battery with boost converter. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10Y46ASP#50 | 2 KB Flash, 256 B RAM - 50% less program/data memory than R5F10Y44ASP#50 | Suitable for simpler firmware with reduced peripheral usage (e.g., basic timer+GPIO only) | Select when application code size fits within 2 KB and RAM usage stays below 256 B |
| R5F10Y47ASP#50 | 4 KB Flash, 512 B RAM, same package - but adds 12-bit interval timer and internal reference voltage (0.815 V) | Required for applications needing precise periodic wake-up or comparator-based threshold detection | Choose when interval timing or internal ADC reference stability is mandatory |
Compared with R5F10Y44ASP#50, R5F10Y46ASP#50 offers lower memory at identical pinout and power profile, while R5F10Y47ASP#50 adds interval timer and reference voltage - making R5F10Y44ASP#50 the optimal balance of cost, capability, and feature set for mid-complexity sensor/control designs.
Availability
R5F10Y44ASP#50 is available at Aetrix Electronics and suitable for battery-powered sensor nodes, industrial HMI panels, and portable medical devices requiring stable component supply and long-term production continuity.
Supply support for R5F10Y44ASP#50 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 microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.
The RL78/G10 product line targets ultra-low-power general-purpose embedded control - optimized for cost-sensitive, battery-operated, and space-constrained applications where reliability and energy efficiency are critical.
FAQ
What is the maximum operating frequency of the R5F10Y44ASP#50?
The R5F10Y44ASP#50 supports a maximum system clock frequency of 20 MHz using its high-speed on-chip oscillator, with ±2% accuracy over –20 to +85°C and 2.0–5.5 V supply. External crystal or clock input up to 20 MHz is also supported, but requires X1/X2 pins and configuration of the main oscillator circuit. The R5F10Y44ASP#50 achieves a minimum instruction cycle time of 0.05 µs under these conditions.
Does the R5F10Y44ASP#50 include an internal ADC reference voltage?
No, the R5F10Y44ASP#50 does not include an internal reference voltage source. While the RL78/G10 family's 16-pin variants support internal reference (0.815 V typ.) on the IVREF0 pin, this feature is explicitly documented as "only for 16-pin product" in the datasheet - and confirmed absent in R5F10Y44ASP#50's functional outline (Table 1-6). Designers must supply an external reference or use VDD as reference for the 7-channel 10-bit ADC.
What communication interfaces are available on the R5F10Y44ASP#50?
The R5F10Y44ASP#50 integrates UART0 (7-/8-bit), IICA0 (I²C master/slave), and two CSI channels (CSI00 and CSI01) - each supporting 7-/8-bit serial data transfer. CSI00 maps to P00–P02; CSI01 maps to P05–P07. No CAN, USB, or Ethernet interfaces are present. All serial peripherals are software-configurable via the SAU0 module and support asynchronous operation with programmable baud rates.
Is the R5F10Y44ASP#50 pin-compatible with other RL78/G10 16-pin variants?
Yes, the R5F10Y44ASP#50 shares identical 16-pin SSOP pinout and electrical characteristics with R5F10Y46ASP#50 and R5F10Y47ASP#50 - including identical port mapping, peripheral pin assignments (e.g., P00=TxD0, P01=SDA00/ANI0), and power/ground locations. This allows direct substitution in existing layouts when memory or feature requirements change, provided firmware accommodates differences in Flash/RAM size and optional peripherals like the 12-bit interval timer.
What is the STOP mode current consumption of the R5F10Y44ASP#50?
The R5F10Y44ASP#50 consumes 0.61 µA (typical) in STOP mode at VDD = 3.0 V, with RAM retained - meeting ultra-low-power requirements for infrequently awakened sensor nodes. This value is measured with the low-speed on-chip oscillator running and excludes current drawn by optional peripherals like the 12-bit interval timer or comparator, which must be disabled separately to achieve minimum quiescent current.
R5F10Y44ASP#50 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 16-SSOP (0.173", 4.40mm Width)
- Series:
- RL78/G10
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- RL78
- Core Size:
- 16-Bit
- Speed:
- 20MHz
- Connectivity:
- CSI, I2C, LINbus, UART/USART
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 10
- Program Memory Size:
- 1KB (1K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 128 x 8
- Voltage - Supply (Vcc/Vdd):
- 2V ~ 5.5V
- Data Converters:
- A/D 7x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F10Y44ASP#50 FAQ
1.How can I place an order for R5F10Y44ASP#50 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10Y44ASP#50 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 R5F10Y44ASP#50 reliable?
The price and inventory of R5F10Y44ASP#50 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10Y44ASP#50 is usually 5 days.
3.What payment methods are accepted for R5F10Y44ASP#50?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10Y44ASP#50 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10Y44ASP#50?
R5F10Y44ASP#50 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10Y44ASP#50 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 R5F10Y44ASP#50?
For technical support, including R5F10Y44ASP#50 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10Y44ASP#50 requirements.
6.How does Aetrix verify that R5F10Y44ASP#50 is sourced from the original manufacturer or authorized distributors?
All R5F10Y44ASP#50 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 R5F10Y44ASP#50 meets industry standards.
7.What is the process for return or replacement of R5F10Y44ASP#50?
All R5F10Y44ASP#50 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10Y44ASP#50, 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 R5F10Y44ASP#50 part is unused and in its original packaging.
Return procedure for R5F10Y44ASP#50:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F10Y44ASP#50 Tags
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