Renesas R5F10Y47DSP#50

Overview

R5F10Y47DSP#50 from Renesas Electronics is a 16-pin, 4 KB Flash, 512 B RAM RL78/G10 16-bit microcontroller optimized for ultra-low-power embedded control. It operates from 2.0 to 5.5 V, delivers 46 µA/MHz active current, supports 7-channel 10-bit ADC, and integrates UART, dual CSI (SPI-compatible), I²C, 4-channel TAU timers, and key interrupt inputs - deployed in battery-powered sensor nodes and industrial control panels.

For engineers reviewing the R5F10Y47DSP#50 datasheet, R5F10Y47DSP#50 pinout, R5F10Y47DSP#50 application, or R5F10Y47DSP#50 equivalent, this page provides verified package mapping (16-pin SSOP), confirmed peripheral allocation (e.g., P04 = ANI3/TI01/TO01/KR5/IVREF0), real-world supply current values (0.61 µA STOP mode @3.0 V), and two validated alternative parts with documented functional and packaging differences.

Technical Context

The R5F10Y47DSP#50 implements the RL78-S1 core with Harvard architecture and 3-stage pipeline, enabling 78% of instructions in 1–2 clock cycles. Its clock system combines a ±2% accurate 20 MHz high-speed on-chip oscillator (selectable pre-configured frequencies: 20/10/5/2.5/1.25 MHz) and a 15 kHz low-speed oscillator, with optional external crystal (X1/X2) or EXCLK input up to 20 MHz.

Peripheral integration includes a 7-channel 10-bit ADC with 3.4 µs conversion time and internal 0.815 V reference (IVREF0), one comparator (IVCMP0/VCOUT0), four 16-bit timer array unit (TAU) channels supporting PWM output, and serial interfaces: one UART (7-/8-bit), one I²C master (IICA0), and two simplified SPI (CSI00/CSI01) channels - all mapped to dedicated pins in the 16-pin SSOP package.

Key Specifications

Pinout & Package

Package: 16-pin plastic SSOP (4.4 × 5.0 mm, 0.65 mm pitch), industrial-grade (D-suffix), embossed tape packaging (#50).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar microcontroller applications.

Compared with R5F10Y47DSP#50, R5F10Y46DSP#50 trades memory headroom for lower unit cost while retaining identical peripherals and packaging, whereas R5F10Y47ASP#50 offers identical functionality but omits industrial-grade screening - making the DSP variant the sole choice for guaranteed performance in demanding production environments.

Availability

R5F10Y47DSP#50 is available at Aetrix Electronics and suitable for industrial control panels, smart sensor nodes, low-cost motor drivers, and energy metering modules requiring stable component supply across long-lifecycle deployments.

Supply support for R5F10Y47DSP#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 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 targeting cost-sensitive, battery-operated, and space-constrained embedded applications - emphasizing minimal active current, integrated analog, and robust industrial qualification.

FAQ

What is the maximum operating frequency and accuracy of the on-chip oscillator in R5F10Y47DSP#50?

The R5F10Y47DSP#50 features a factory-trimmed high-speed on-chip oscillator with a maximum frequency of 20 MHz and ±2% accuracy over -20°C to +85°C ambient temperature. At -40°C to -20°C, accuracy degrades to ±3%. This oscillator supports five pre-configured frequencies (20/10/5/2.5/1.25 MHz) and eliminates the need for external crystals in many applications. The R5F10Y47DSP#50 uses this clock source for core execution and peripheral timing unless switched to external X1/X2 or EXCLK.

Does R5F10Y47DSP#50 support hardware debugging during development?

Yes, the R5F10Y47DSP#50 includes a 1-wire on-chip debug function accessible via the TOOL0 pin (P40), enabling full-cycle emulation, breakpoint setting, and memory inspection. However, Renesas explicitly cautions against using this feature in mass-produced units due to potential flash memory wear-out beyond guaranteed rewrite cycles. For production firmware, debugging should be completed prior to final programming, and the debug interface must be disabled in released code.

How many analog input channels does R5F10Y47DSP#50 support, and what is their resolution and speed?

The R5F10Y47DSP#50 supports seven analog input channels (ANI0–ANI6) with 10-bit resolution and a minimum conversion time of 3.4 µs. It accepts input voltages up to VDD and supports an internal 0.815 V reference (IVREF0) for ratiometric measurements. The ADC operates independently of the main CPU clock and can be triggered by software, timers, or external events - enabling precise, low-latency analog acquisition in real-time control loops.

What are the key differences between R5F10Y47DSP#50 and R5F10Y47ASP#50?

The R5F10Y47DSP#50 and R5F10Y47ASP#50 share identical electrical specifications, pinout, Flash/RAM size (4 KB/512 B), and peripheral sets. Their sole difference is qualification grade: the 'D' suffix denotes industrial-grade screening (-40°C to +85°C with extended reliability testing), while the 'A' suffix indicates consumer-grade qualification. Both use the same 16-pin SSOP package and embossed tape (#50) packaging - making them drop-in replacements except where industrial certification is contractually required.

Can R5F10Y47DSP#50 drive LEDs or small relays directly from its GPIO pins?

Yes, the R5F10Y47DSP#50 supports up to 20 mA sink current per GPIO pin (P00–P07), with a total package limit of 100 mA for these ports. This allows direct driving of standard LEDs (with appropriate series resistors) and small signal relays (coil current ≤20 mA). Pins P00, P01, P06, and P07 do not support high-level output in N-ch open-drain mode, so sinking current is the preferred configuration. Always verify voltage drop and thermal dissipation under worst-case duty cycle conditions.