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Renesas R5F10Y46ASP#70
- Part No.:
- R5F10Y46ASP#70
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 16-SSOP (0.173", 4.40mm Width)
- Datasheet:
-
R5F10Y46ASP#70.pdf
- Description:
- 16-BIT GENERAL MCU RL78/G10 2K 1
- Quantity:
- Payment:
- Shipping:
Inventory:2,661
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Product details
Overview
R5F10Y46ASP#70 from Renesas Electronics is a 16-pin, 2 KB Flash, 256-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 interfaces, I²C, and key interrupt support - deployed in battery-powered sensor nodes and industrial control panels.
For engineers reviewing the R5F10Y46ASP#70 datasheet, R5F10Y46ASP#70 pinout, R5F10Y46ASP#70 application, or R5F10Y46ASP#70 equivalent, this page delivers verified technical context, package-validated pin functions, real-world use-value per application, and two confirmed alternative parts with documented functional and application-level differences.
Technical Context
The R5F10Y46ASP#70 implements the RL78-S1 core with Harvard architecture, 3-stage pipeline, and 78% of instructions executed in 1–2 clock cycles. Its clock system supports dual oscillators: high-speed on-chip (1.25–20 MHz, ±2% over –20 to +85°C) and low-speed 15 kHz internal oscillator for STOP-mode retention.
Peripheral integration includes SAU0 (1 channel supporting UART/CSI/I²C), TAU0 (4-channel 16-bit timer array with PWM output capability), 7-channel 10-bit ADC (3.4 µs conversion), and 6-key interrupt inputs (KR0–KR5) - all mapped to its 16-pin SSOP package with full I/O redirection via 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 embedded systems |
| Flash / RAM | 2 KB flash memory (4.5–5.5 V rewrite voltage), 256 B RAM; sufficient for compact firmware with retained data in HALT/STOP modes |
| Supply Current | 46 µA/MHz active current; 0.61 µA STOP mode (VDD = 3.0 V); enables multi-year battery life in always-on sensing applications |
| ADC | 7-channel 10-bit SAR ADC, 3.4 µs conversion time, supports 2.4 V reference; suitable for precision analog monitoring without external references |
| Oscillator | 20 MHz high-speed on-chip oscillator (±2% over –20 to +85°C); eliminates external crystal cost and board space in cost-sensitive designs |
| I/O Drive | 20 mA per pin sink/source (P00–P07), N-ch open-drain support; directly drives LEDs, relays, or logic-level MOSFETs without buffer stages |
| Operating Temp | –40°C to +85°C ambient range; qualified for industrial-grade deployment in uncontrolled environments |
Pinout & Package
Package: 16-pin plastic SSOP (4.4 × 5.0 mm, 0.65 mm pitch), RoHS-compliant, surface-mountable with standard reflow profile.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00 | Port 0 bit 0 / UART TXD0 / INT P1 | Dedicated serial transmit line with interrupt capability; enables asynchronous host communication and wake-on-RX |
| P01 | Port 0 bit 1 / ADC ANI0 / I²C SDA00 / KR2 | Multi-function pin supporting analog sensing, bidirectional I²C data, and key-scan return - configurable via PIOR |
| P02 | Port 0 bit 2 / ADC ANI1 / I²C SCL00 / PCLBUZ0 / KR3 | Shared clock/data line for I²C master/slave; also provides programmable buzzer/clock output up to 10 MHz |
| P03 | Port 0 bit 3 / ADC ANI2 / Timer TO00 / KR4 | Timer output channel usable for PWM-driven actuators or timing pulses; supports key-scan matrix scanning |
| P04 | Port 0 bit 4 / ADC ANI3 / Timer TI01/TO01 / KR5 / IVREF0 | ADC input with internal reference voltage source (IVREF0); enables ratiometric measurements without external VREF |
| P05 | Port 0 bit 5 / ADC ANI4 / Timer TI02/TO02 / SO01 | Second timer output channel and SPI slave-out; supports dual PWM outputs or synchronous serial peripheral control |
| P06 | Port 0 bit 6 / ADC ANI5 / INT P3 / SCLA0 / SI01 | I²C addressable slave clock input and SPI slave-in; allows daisy-chain or multi-drop sensor interface |
| P07 | Port 0 bit 7 / ADC ANI6 / Timer TO03 / SDAA0 / SCK01 | Third CSI channel clock and I²C alternate data line; expands serial peripheral count beyond single-bus limits |
| P40 | Port 4 bit 0 / TOOL0 / KR0 / TI01/TO01 | On-chip debug interface pin; enables programming and real-time debugging without external JTAG adapter |
| P41 | Port 4 bit 1 / INT P2 / TI03 | External interrupt input with timer capture; supports edge-triggered event logging or pulse-width measurement |
| P125 | Port 12 bit 5 / RESET / KR1 | Active-low reset input with internal pull-up; accepts external reset button or power-monitor IC assertion |
| P137 | Port 13 bit 7 / INT P0 / TI00 | Primary external interrupt source with timer input function; used for wake-from-STOP or high-priority event capture |
| P121/P122 | X1/X2 / EXCLK | Crystal oscillator or external clock input pins; optional for higher-precision timing when on-chip oscillator tolerance is insufficient |
| VDD | Power Supply | Single 2.0–5.5 V supply rail; powers core, peripherals, and I/O simultaneously - no separate analog/digital rails required |
| VSS | Ground | Common reference for all digital and analog circuits; requires low-impedance PCB connection to minimize noise coupling |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-Low-Power Operation | 46 µA/MHz active current and 0.61 µA STOP mode enable >5-year coin-cell battery life in periodic-sensing applications |
| Integrated Analog Front-End | 7-channel 10-bit ADC with 3.4 µs conversion and internal 0.815 V reference reduces BOM count and layout complexity |
| Flexible Serial Connectivity | UART + dual CSI (SPI-compatible) + I²C on shared pins allows concurrent communication with sensors, displays, and host controllers |
| Hardware Key Interrupt | 6-key return (KR0–KR5) with dedicated hardware scanning logic eliminates CPU polling overhead in HMI subsystems |
| Configurable Timer Array | 4-channel 16-bit TAU with independent capture/compare and PWM output supports motor control, LED dimming, and signal generation |
Applications
| Smart Thermostat Sensor Node | Industrial Panel-Mount Keypad |
|---|---|
Use Scenario: Battery-powered wall-mounted temperature/humidity sensor transmitting data hourly via UART to gateway. IC Role / Device Role / Timing Role: Main controller executing sensor readout, ADC conversion, low-power scheduling, and UART transmission. Use Value: 0.61 µA STOP current extends CR2032 battery life to 7+ years; integrated 20 MHz oscillator avoids crystal cost and layout sensitivity. | Use Scenario: DIN-rail mounted control panel with 6-button keypad, status LEDs, and RS-485 interface. IC Role / Device Role / Timing Role: Keypad scanner, LED driver, and UART-to-RS485 protocol translator with watchdog supervision. Use Value: 20 mA I/O drive directly sources LEDs; 6-key interrupt hardware reduces firmware latency to <10 µs per key press. |
| Portable Medical Pulse Oximeter | White-Goods Appliance Control Module |
Use Scenario: Handheld oximeter using red/IR photodiodes, analog front-end, and OLED display interface. IC Role / Device Role / Timing Role: ADC controller for photodiode signals, PWM driver for LED current regulation, and SPI interface to display driver. Use Value: 7-channel ADC captures dual-wavelength analog signals simultaneously; 3.4 µs conversion enables real-time SpO₂ calculation at 100 Hz. | Use Scenario: Washing machine main control board managing motor drivers, water valves, and user interface. IC Role / Device Role / Timing Role: System supervisor coordinating motor timing, safety interlocks, and UI feedback via buzzer and LEDs. Use Value: PCLBUZ0 generates precise 2.44 kHz–10 MHz buzzer tones; watchdog timer detects firmware hangs before motor runaway occurs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10Y47ASP#70 | 4 KB Flash, 512 B RAM, same 16-pin SSOP package and peripheral set | Supports larger firmware images and deeper data buffering; required for OTA update capability or complex state machines | Select when firmware exceeds 2 KB or RAM usage exceeds 256 B - identical pinout and software compatibility simplify migration |
| R5F10Y44ASP#70 | 1 KB Flash, 128 B RAM, identical clock/peripheral specs and package | Suitable for minimal bootloaders or fixed-function logic; insufficient for multi-sensor fusion or protocol stacks | Choose for ultra-low-cost production where code size is strictly bounded to ≤1 KB and no future feature expansion is planned |
Compared with R5F10Y46ASP#70, R5F10Y47ASP#70 offers headroom for firmware growth without hardware change, while R5F10Y44ASP#70 reduces unit cost where memory constraints are absolute - both share identical timing, I/O, and thermal behavior.
Availability
R5F10Y46ASP#70 is available at Aetrix Electronics and suitable for smart sensor nodes, industrial HMI panels, portable medical devices, and white-goods control modules requiring stable component supply across multi-year production cycles.
Supply support for R5F10Y46ASP#70 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 specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.
The RL78/G10 product line delivers true low-power 16-bit MCUs optimized for cost-sensitive, battery-operated, and space-constrained embedded applications - emphasizing energy efficiency, integrated analog, and rapid time-to-market.
FAQ
What is the maximum operating frequency of the R5F10Y46ASP#70?
The R5F10Y46ASP#70 supports a maximum high-speed on-chip oscillator frequency of 20 MHz (±2% accuracy over –20 to +85°C) and can also operate with an external crystal or clock up to 20 MHz. Its minimum instruction execution time is 0.05 µs at 20 MHz, enabling real-time response in time-critical control loops. The R5F10Y46ASP#70 does not require external clock components unless tighter frequency stability is needed.
Does the R5F10Y46ASP#70 include an internal voltage reference for the ADC?
Yes, the R5F10Y46ASP#70 includes an internal reference voltage (IVREF0) of 0.815 V (typical), accessible on pin P04, specifically for the 10-bit ADC. This allows ratiometric measurements without external reference components, reducing BOM cost and PCB area. The R5F10Y46ASP#70 ADC supports 2.4 V operation and achieves 3.4 µs conversion time across all 7 channels.
Can the R5F10Y46ASP#70 drive LEDs directly without external transistors?
Yes, the R5F10Y46ASP#70 supports up to 20 mA sink/source per I/O pin (P00–P07), with total port current limits defined per group. Its CMOS I/O structure and N-ch open-drain capability allow direct driving of standard LEDs, piezo buzzers, or small relays. The R5F10Y46ASP#70's 0.61 µA STOP-mode current ensures minimal leakage during sleep, preserving battery life in LED-indicator applications.
How many serial communication interfaces does the R5F10Y46ASP#70 support?
The R5F10Y46ASP#70 integrates UART (1 channel), I²C (1 channel, master-only in 16-pin variants), and two CSI channels (SPI-compatible, 7-/8-bit). These interfaces share pins via peripheral I/O redirection (PIOR), allowing flexible allocation without hardware redesign. The R5F10Y46ASP#70 supports simultaneous use of UART + one CSI + I²C for multi-peripheral systems like sensor hubs.
Is the R5F10Y46ASP#70 pin-compatible with other RL78/G10 16-pin variants?
Yes, the R5F10Y46ASP#70 shares identical 16-pin SSOP package dimensions, pinout, and electrical characteristics with all RL78/G10 16-pin members (e.g., R5F10Y44ASP#70, R5F10Y47ASP#70). Firmware and PCB layouts are interchangeable across these variants - only Flash/RAM capacity differs. The R5F10Y46ASP#70 requires no layout changes when upgraded to R5F10Y47ASP#70 or downgraded to R5F10Y44ASP#70.
R5F10Y46ASP#70 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:
- -
- Core Processor:
- RL78
- Core Size:
- 8-Bit
- Speed:
- 20MHz
- Connectivity:
- CSI, I2C, LINbus, UART/USART
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 10
- Program Memory Size:
- 2KB (2K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 256 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:
R5F10Y46ASP#70 FAQ
1.How can I place an order for R5F10Y46ASP#70 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10Y46ASP#70 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 R5F10Y46ASP#70 reliable?
The price and inventory of R5F10Y46ASP#70 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10Y46ASP#70 is usually 5 days.
3.What payment methods are accepted for R5F10Y46ASP#70?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10Y46ASP#70 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10Y46ASP#70?
R5F10Y46ASP#70 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10Y46ASP#70 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 R5F10Y46ASP#70?
For technical support, including R5F10Y46ASP#70 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10Y46ASP#70 requirements.
6.How does Aetrix verify that R5F10Y46ASP#70 is sourced from the original manufacturer or authorized distributors?
All R5F10Y46ASP#70 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 R5F10Y46ASP#70 meets industry standards.
7.What is the process for return or replacement of R5F10Y46ASP#70?
All R5F10Y46ASP#70 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10Y46ASP#70, 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 R5F10Y46ASP#70 part is unused and in its original packaging.
Return procedure for R5F10Y46ASP#70:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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