Renesas R5F10Y17DSP#10

Overview

R5F10Y17DSP#10 from Renesas Electronics is a 10-pin, 4 KB Flash, 512-byte RAM RL78/G10 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 delivers real-time control in battery-powered sensor nodes, smart switches, and industrial I/O modules requiring compact footprint and deterministic interrupt response.

For engineers reviewing the R5F10Y17DSP#10 datasheet, R5F10Y17DSP#10 pinout, R5F10Y17DSP#10 application, or R5F10Y17DSP#10 equivalent, key selection criteria include its 10-pin LSSOP package, 4 KB flash density, 7-channel ADC capability (confirmed for 16-pin variants but not this 10-pin part), and verified support for UART, I²C, and CSI interfaces - all validated against Rev.3.21 of R01DS0207EJ.

Technical Context

The R5F10Y17DSP#10 implements the RL78-S1 core - a Harvard-architecture CISC with 3-stage pipeline, executing 78% of instructions in 1–2 clock 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 a 2-channel 16-bit timer array unit (TAU0), 1-channel UART0, 1-channel simplified I²C (IIC00), 1-channel simplified SPI (CSI00), and 4-channel 10-bit ADC - all confirmed for 10-pin RL78/G10 devices per datasheet Table 1-6 and Figure 1-5. Key interrupt sources are INTP0/INTP1 and six key-return inputs (KR0–KR5).

Key Specifications

Pinout & Package

Package: 10-pin plastic LSSOP (4.4 × 3.6 mm, 0.65 mm pitch), industrial-grade (-40°C to +85°C).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F10Y16DSP#10, the R5F10Y17DSP#10 provides double flash and RAM for complex control logic; versus R5F10Y47DSP#10, it trades peripheral richness for minimal 10-pin packaging - ideal for space-constrained, cost-sensitive embedded nodes where 4-channel ADC suffices.

Availability

R5F10Y17DSP#10 is available at Aetrix Electronics and suitable for battery-powered sensor nodes, industrial pushbutton interfaces, and medical wearable alerts requiring stable component supply and long-term industrial temperature support.

Supply support for R5F10Y17DSP#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 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, emphasizing minimal footprint, single-supply operation, and integrated peripherals to reduce system-level BOM and PCB area.

FAQ

What is the maximum operating frequency of the R5F10Y17DSP#10?

The R5F10Y17DSP#10 supports a maximum operating frequency of 20 MHz using its high-speed on-chip oscillator. This yields a minimum instruction execution time of 0.05 µs at VDD ≥ 2.7 V. External clock input (X1/EXCLK) is not supported on the 10-pin variant per datasheet Section 1.3.1 and Table 1-6, so 20 MHz is achievable only via the internal oscillator.

Does the R5F10Y17DSP#10 include an analog-to-digital converter (ADC)?

Yes, the R5F10Y17DSP#10 integrates a 10-bit ADC with up to 4 input channels (ANI0–ANI3), confirmed in datasheet Section 1.6 and Figure 1-5. Conversion time is 3.4 µs, and it supports reference voltages down to 2.4 V. The 16-pin RL78/G10 variants offer 7 channels, but the 10-pin R5F10Y17DSP#10 is limited to 4 channels as specified in Table 1-6.

What debug interface does the R5F10Y17DSP#10 support?

The R5F10Y17DSP#10 supports a 1-wire on-chip debug function via the TOOL0 pin (P40), enabling programming, breakpoint setting, and real-time variable inspection without external debug probes. This interface is documented in Section 1.1 and Figure 1-5 of the datasheet, and requires no additional pins beyond the standard 10-pin LSSOP footprint.

Is the R5F10Y17DSP#10 pin-compatible with other RL78/G10 10-pin variants?

Yes, the R5F10Y17DSP#10 shares identical pinout and package (10-pin LSSOP) with all RL78/G10 10-pin parts including R5F10Y14DSP#10 and R5F10Y16DSP#10. Pin functions are fully compatible per Table 1-2 and Figure 1-3; only flash/RAM sizes and SPOR settings differ - allowing drop-in replacement when firmware fits the target memory configuration.

What is the supply current consumption of the R5F10Y17DSP#10 in STOP mode?

The R5F10Y17DSP#10 consumes 0.56 µA typical in STOP mode with RAM retained, as specified in Section 1.1 and Table 2-3 of the datasheet. This value is measured at VDD = 3.0 V and TA = 25°C, with the low-speed on-chip oscillator disabled. Maximum STOP current is 2.25 µA across the full -40°C to +85°C industrial temperature range.