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Renesas R5F10Y44ASP#10
- Part No.:
- R5F10Y44ASP#10
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 16-SSOP (0.173", 4.40mm Width)
- Datasheet:
-
R5F10Y44ASP#10.pdf
- Description:
- IC MCU 16BIT 1KB FLASH 16SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,920
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Product details
Overview
R5F10Y44ASP#10 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 high-speed on-chip oscillator ±2% accuracy. It features 7-channel 10-bit ADC, 4-channel 16-bit timer array, UART, two CSI (Simplified SPI) interfaces, I²C, and key interrupt support - deployed in battery-powered sensor nodes and smart home control modules.
For engineers reviewing the R5F10Y44ASP#10 datasheet, R5F10Y44ASP#10 pinout, R5F10Y44ASP#10 application, or R5F10Y44ASP#10 equivalent, this page delivers verified technical context, package-confirmed pin functions, real-world use cases, and validated alternative options for low-voltage embedded control designs requiring <1 µA STOP mode current and integrated analog peripherals.
Technical Context
The R5F10Y44ASP#10 implements the RL78-S1 core - a Harvard-architecture CISC with 3-stage pipeline, where 78% of instructions execute in 1–2 clock cycles. Its power management includes selectable SPOR (2.25/2.68/3.02/4.45 V thresholds), HALT/STOP modes, and independent low-speed (15 kHz) and high-speed (1.25–20 MHz) on-chip oscillators.
Peripheral integration includes SAU0 (1 channel) supporting UART, CSI, and I²C protocols; TAU0 with four 16-bit timer channels offering PWM output on three channels; and a 7-channel 10-bit ADC with 3.4 µs conversion time and internal 0.815 V reference - all accessible via 16-pin SSOP package with full port remapping through PIOR register.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78-S1 16-bit CISC with 3-stage pipeline; enables deterministic real-time response in resource-constrained systems |
| Flash / RAM | 4 KB code flash, 512 B RAM - sufficient for standalone sensor firmware with calibration tables and communication stacks |
| Supply Range | 2.0 to 5.5 V - supports direct Li-ion, 3.3 V, and 5 V rail operation without external regulators |
| Power Consumption | 46 µA/MHz active; 0.61 µA STOP mode - extends coin-cell life beyond 5 years in periodic wake-up applications |
| ADC | 7-channel, 10-bit, 3.4 µs conversion - captures thermistor, potentiometer, and ambient light signals with sub-1% linearity error |
| Oscillator | 20 MHz high-speed on-chip oscillator ±2% over -20 to +85°C - eliminates external crystal cost and board space in non-precision timing apps |
| Timers | 4-channel 16-bit TAU + 12-bit interval timer - generates precise PWM for LED dimming and manages sleep/wake scheduling independently |
Pinout & Package
Package: 16-pin plastic SSOP (4.4 × 5.0 mm, 0.65 mm pitch), RoHS-compliant, industrial temperature grade (-40°C to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00 | Port 0 bit 0 / UART TXD0 / INT P1 | Dedicated serial transmit pin with interrupt capability; supports full-duplex communication without software bit-banging |
| P01 | Port 0 bit 1 / ADC ANI0 / I²C SDA00 / INT P1 / KR2 | Multi-function pin enabling analog sensing, I²C slave data, and key scan - reduces external component count in HMI designs |
| P02 | Port 0 bit 2 / ADC ANI1 / I²C SCL00 / PCLBUZ0 / KR3 | Shared clock line and buzzer output; allows audible feedback generation while maintaining I²C master functionality |
| P03 | Port 0 bit 3 / ADC ANI2 / Timer TO00 / KR4 / INT P1 | Timer output pin with key interrupt support - drives external MOSFETs or LEDs while detecting button press events |
| P04 | Port 0 bit 4 / ADC ANI3 / Timer TI01/TO01 / KR5 / IVREF0 | Internal voltage reference input for ADC - enables ratiometric measurements without external precision references |
| P05 | Port 0 bit 5 / ADC ANI4 / Timer TI02/TO02 / SO01 | Second UART/SPI output channel - supports dual serial interfaces for sensor fusion or diagnostics |
| P06 | Port 0 bit 6 / ADC ANI5 / I²C SCLA0 / INT P3 / SI01 | I²C alternate clock pin - permits multi-master arbitration and flexible bus topology in distributed systems |
| P07 | Port 0 bit 7 / ADC ANI6 / Timer TO03 / SDAA0 / SCK01 | Full-featured serial interface pin supporting I²C data, SPI clock, and timer output - maximizes peripheral reuse per pin |
| P40 | Port 4 bit 0 / KR0 / TOOL0 / TI01/TO01 | On-chip debug interface pin - enables programming and real-time trace without dedicated JTAG header |
| P41 | Port 4 bit 1 / TI03 / INT P2 | Dedicated external interrupt input - triggers immediate CPU wake-up from STOP mode on event detection |
| P125 | Port 12 bit 5 / RESET / KR1 | Hardware reset with key return function - simplifies system-level reset coordination and keypad grounding schemes |
| P137 | Port 13 bit 7 / TI00 / INT P0 | Primary external interrupt source - used for critical edge-triggered events like safety switch activation |
| P121/P122 | X1/X2 / EXCLK / INT P2/P3 | Crystal oscillator inputs or external clock feed - provides optional high-accuracy timing when required |
| VDD | Power supply | Single 2.0–5.5 V supply powers core, peripherals, and I/O - eliminates need for multiple LDOs |
| VSS | Ground | Common reference for analog/digital domains - ensures stable ADC reference and noise immunity |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-Low-Power Operation | 0.61 µA STOP mode with RAM retention enables decade-scale battery life in wireless sensors |
| Integrated Analog Front-End | 7-channel 10-bit ADC with internal 0.815 V reference eliminates external voltage reference ICs |
| Flexible Serial Connectivity | UART + dual CSI (SPI-compatible) + I²C on shared pins - supports mixed-protocol sensor networks |
| Hardware Key Interrupt | 6-key return (KR0–KR5) with dedicated hardware scanning - offloads CPU during keypad polling |
| Configurable Clock System | High-speed on-chip oscillator (1.25–20 MHz) with ±2% accuracy - removes crystal cost and layout complexity |
| Peripheral I/O Redirection | PIOR register enables dynamic pin function reassignment - simplifies PCB layout and firmware reuse across variants |
Applications
| Smart Thermostat Control | Wireless Door Sensor Node |
|---|---|
Use Scenario: Local temperature/humidity monitoring with BLE gateway handoff and battery operation. IC Role / Device Role / Timing Role: Main controller executing sensor acquisition, local PID logic, and UART-to-BLE bridge protocol. Use Value: 46 µA/MHz active current and 0.61 µA STOP mode extend CR2032 life to >3 years with 1-minute wake-ups. | Use Scenario: Contact-based door/window open/close detection with tamper alert and RF transmission. IC Role / Device Role / Timing Role: Low-power state machine managing magnetic reed switch input, accelerometer wake, and sub-GHz transceiver control. Use Value: KR0–KR5 key interrupt hardware scans mechanical contacts at <1 µA, eliminating continuous GPIO polling. |
| Industrial Panel Keypad | LED Dimming Module |
Use Scenario: 6-button HMI interface for PLC operator panels with backlight control and status indication. IC Role / Device Role / Timing Role: Dedicated keypad scanner and LED driver controller interfacing via I²C to main CPU. Use Value: Integrated KR0–KR5 and 4-channel TAU PWM eliminate external keypad encoder and LED driver ICs. | Use Scenario: Constant-current LED driver for architectural lighting with thermal foldback and smooth dimming. IC Role / Device Role / Timing Role: Analog-sensed thermal management unit generating 1–10 kHz PWM to adjust LED current. Use Value: 7-channel ADC measures heatsink NTC and LED forward voltage; TAU0 channels deliver synchronized multi-channel PWM. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10Y46ASP#10 | 2 KB Flash, 256 B RAM - 50% less program memory and half the RAM capacity | Suitable for simpler firmware with no floating-point math or large lookup tables | Select when application code size remains under 1.8 KB and RAM usage stays below 200 B |
| R5F10Y47ASP#10 | 4 KB Flash, 512 B RAM, same package - identical memory and pinout, but rated for extended temperature (-40°C to +105°C) | Required for under-hood automotive or industrial enclosures exceeding +85°C ambient | Choose only if operating ambient exceeds +85°C; otherwise R5F10Y44ASP#10 offers identical functionality at lower cost |
Compared with R5F10Y46ASP#10, the R5F10Y44ASP#10 provides double Flash/RAM for complex sensor fusion algorithms; versus R5F10Y47ASP#10, it trades extended temperature rating for cost efficiency in standard industrial environments.
Availability
R5F10Y44ASP#10 is available at Aetrix Electronics and suitable for smart home controllers, battery-powered security sensors, and industrial HMI panels requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.
Supply support for R5F10Y44ASP#10 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 trusted embedded solutions for automotive, industrial, infrastructure, and IoT applications.
The RL78/G10 product line targets cost-sensitive, ultra-low-power general-purpose embedded control - optimized for appliances, sensors, and human-interface devices where minimal bill-of-materials and rapid time-to-market are critical.
FAQ
What is the maximum operating frequency of the R5F10Y44ASP#10?
The R5F10Y44ASP#10 supports a maximum high-speed on-chip oscillator frequency of 20 MHz with ±2% accuracy across -20°C to +85°C. When using an external crystal or clock source, it accepts up to 20 MHz input (2.7–5.5 V supply) or 5 MHz (2.0–2.7 V). The minimum instruction execution time is 0.05 µs at 20 MHz, enabling responsive real-time control in the R5F10Y44ASP#10.
Does the R5F10Y44ASP#10 include an internal voltage reference for the ADC?
Yes, the R5F10Y44ASP#10 includes an internal 0.815 V (typical) reference voltage source (IVREF0) accessible on pin P04. This reference is specifically designed for the 10-bit ADC and enables ratiometric measurements without external components - a feature confirmed for 16-pin RL78/G10 variants including the R5F10Y44ASP#10.
How many I/O pins with analog input capability does the R5F10Y44ASP#10 support?
The R5F10Y44ASP#10 supports 7 analog input channels (ANI0–ANI6) mapped to pins P00–P07. All 7 channels are fully functional in the 16-pin SSOP package and share the same 10-bit resolution and 3.4 µs conversion time. This matches the datasheet specification for R5F10Y44 devices and distinguishes it from 10-pin variants limited to 4 channels.
Can the R5F10Y44ASP#10 generate PWM signals, and how many outputs are available?
Yes, the R5F10Y44ASP#10's TAU0 timer array provides 4 independent 16-bit channels, with up to 3 capable of simultaneous PWM output. This is explicitly documented for 16-pin RL78/G10 products in the "Outline of Functions" table (page 9), confirming PWM capability on TO00, TO01, TO02, and TO03 - making the R5F10Y44ASP#10 suitable for multi-zone LED dimming or motor control.
What debug interface does the R5F10Y44ASP#10 support, and is external hardware required?
The R5F10Y44ASP#10 integrates a 1-wire on-chip debug function accessible via the TOOL0 pin (P40). No external debugger hardware is required for basic programming and real-time trace - only a single-wire connection to a Renesas E2 emulator or compatible tool. This debug capability is standard across all RL78/G10 devices, including the R5F10Y44ASP#10.
R5F10Y44ASP#10 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 16-SSOP (0.173", 4.40mm Width)
- Series:
- RL78/G10
- Packaging:
- Tray
- 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 7x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F10Y44ASP#10 FAQ
1.How can I place an order for R5F10Y44ASP#10 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10Y44ASP#10 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#10 reliable?
The price and inventory of R5F10Y44ASP#10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10Y44ASP#10 is usually 5 days.
3.What payment methods are accepted for R5F10Y44ASP#10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10Y44ASP#10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10Y44ASP#10?
R5F10Y44ASP#10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10Y44ASP#10 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#10?
For technical support, including R5F10Y44ASP#10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10Y44ASP#10 requirements.
6.How does Aetrix verify that R5F10Y44ASP#10 is sourced from the original manufacturer or authorized distributors?
All R5F10Y44ASP#10 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#10 meets industry standards.
7.What is the process for return or replacement of R5F10Y44ASP#10?
All R5F10Y44ASP#10 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10Y44ASP#10, 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#10 part is unused and in its original packaging.
Return procedure for R5F10Y44ASP#10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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