Renesas R5F10Y17ASP#10

Overview

R5F10Y17ASP#10 from Renesas is a 10-pin, 4 KB Flash, 512-byte RAM RL78/G10 16-bit microcontroller with ultra-low-power operation (46 µA/MHz active, 0.56 µA STOP), 2.0–5.5 V supply range, and integrated 20 MHz ±2% on-chip oscillator. It serves as a compact system controller in battery-powered sensor nodes, smart switches, and industrial I/O modules requiring deterministic timing and minimal BOM count.

For engineers reviewing the R5F10Y17ASP#10 datasheet, R5F10Y17ASP#10 pinout, R5F10Y17ASP#10 application, or R5F10Y17ASP#10 equivalent, this page delivers verified technical context, package-validated pin functions, real-world use cases, and two confirmed alternative parts with documented functional and application-level differences.

Technical Context

The R5F10Y17ASP#10 implements the RL78-S1 core-a Harvard-architecture CISC with 3-stage pipeline-enabling 78% of instructions in 1–2 clock cycles and 8×8 multiply in 2 cycles. Its power management includes selectable power-on reset (SPOR) with four voltage thresholds and dual oscillators: high-speed on-chip (1.25–20 MHz) and low-speed (15 kHz).

Peripheral integration includes one UART (7-/8-bit), one simplified SPI (CSI00), one simplified I²C (IIC00), four-channel 16-bit timer array (TAU0), 4-channel 10-bit ADC (3.4 µs conversion), and six-key interrupt inputs (KR0–KR5). All I/O pins support internal pull-up and open-drain mode, with up to 20 mA sink per pin.

Key Specifications

Pinout & Package

Package: 10-pin LSSOP (4.4 × 3.6 mm, 0.65 mm pitch), lead-free, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F10Y16ASP#10, the R5F10Y17ASP#10 provides double Flash and RAM for field-upgradable firmware and larger data buffers; versus R5F10Y47ASP#10, it trades peripheral expansion for minimal 10-pin footprint and lower system cost in space-constrained deployments.

Availability

R5F10Y17ASP#10 is available at Aetrix Electronics and suitable for smart home sensor nodes, industrial pushbutton interfaces, and portable medical devices requiring stable component supply, long-term lifecycle support, and guaranteed RoHS-compliant manufacturing.

Supply support for R5F10Y17ASP#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 markets.

The RL78/G10 product line targets ultra-low-power, cost-sensitive general-purpose applications-designed to replace discrete logic and 8-bit MCUs in battery-operated and space-constrained systems where reliability and ease of certification matter.

FAQ

What is the maximum operating frequency of the R5F10Y17ASP#10?

The R5F10Y17ASP#10 supports a maximum high-speed on-chip oscillator frequency of 20 MHz (±2% accuracy across –20°C to +85°C), enabling a minimum instruction execution time of 0.05 µs. External crystal or clock input (X1/EXCLK) can also run up to 20 MHz, but only at VDD ≥ 2.7 V; below that, max external frequency drops to 5 MHz. The R5F10Y17ASP#10 does not require external timing components for full-speed operation.

Does the R5F10Y17ASP#10 support hardware debugging?

Yes, the R5F10Y17ASP#10 integrates a 1-wire on-chip debug function accessible via the P40 (TOOL0) pin. This allows full flash programming, real-time breakpointing, and register inspection without dedicated debug headers. Renesas recommends limiting debug usage in mass production to preserve flash endurance, as repeated debug sessions may exceed guaranteed rewrite cycles.

How many analog-to-digital converter (ADC) channels does the R5F10Y17ASP#10 have?

The R5F10Y17ASP#10 includes four 10-bit analog input channels (ANI0–ANI3), each capable of 3.4 µs conversion time. It supports internal 0.815 V reference voltage and operates down to 2.4 V supply, making it suitable for direct ratiometric sensor interfacing. No external reference or sample-and-hold circuitry is required for basic analog acquisition tasks.

Can the R5F10Y17ASP#10 drive LEDs or small relays directly?

Yes-the R5F10Y17ASP#10 supports up to 20 mA sink current per I/O pin (e.g., P00–P04, P40), with total port current limits defined per group. This allows direct driving of standard LEDs (with series resistor) and small signal relays (coil current ≤20 mA). Open-drain mode with internal pull-up is configurable, simplifying interface design without external transistors in low-power control applications.

What low-power modes are available on the R5F10Y17ASP#10?

The R5F10Y17ASP#10 offers three primary low-power states: HALT (350–820 µA at 20 MHz), STOP (0.56 µA typical with RAM retention), and ultra-low-power STOP with watchdog timer disabled. All modes retain RAM content and support wake-up via external interrupt (INTP0–INTP1), key return (KR0–KR5), or timer events-making it ideal for event-driven, battery-operated systems.