Renesas R5F10Y14DSP#10

Overview

R5F10Y14DSP#10 from Renesas Electronics is a 10-pin, 1 KB Flash, 128-byte RAM RL78/G10 microcontroller with RL78-S1 core, operating at 2.0–5.5 V and delivering ultra-low power consumption (46 µA/MHz active, 0.56 µA STOP). It integrates 4-channel 10-bit ADC, UART, I²C, simplified SPI (CSI), 2-channel 16-bit timer, and key interrupt support - deployed in battery-powered sensor nodes and industrial control interfaces.

For engineers reviewing the R5F10Y14DSP#10 datasheet, R5F10Y14DSP#10 pinout, R5F10Y14DSP#10 application, or R5F10Y14DSP#10 equivalent, this page delivers verified technical context, package mapping, real-world use cases, and validated alternative options for low-voltage, space-constrained embedded designs requiring deterministic timing and minimal quiescent current.

Technical Context

The R5F10Y14DSP#10 implements the RL78-S1 CISC core with 3-stage pipeline and Harvard architecture, enabling 78% of instructions in 1–2 clock cycles. Its high-speed on-chip oscillator delivers 1.25–20 MHz (±2% accuracy at −20 to +85°C) and supports pre-configured frequencies including 20/10/5/2.5/1.25 MHz.

It features a 10-pin LSSOP package with 6 CMOS I/O pins (2 N-ch open-drain), 4 analog inputs (ANI0–ANI3), 3 vectored interrupt sources, 6-key interrupt (KR0–KR5), and peripheral I/O redirection via PIOR register - all optimized for cost-sensitive, low-pin-count applications where external crystal omission is preferred.

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 R5F10Y14DSP#10, R5F10Y16DSP#10 offers scalable memory while maintaining identical pinout and power profile, whereas STM8L051F3P6 trades key interrupt hardware and compact packaging for deeper STOP current - making R5F10Y14DSP#10 optimal for cost-sensitive, UI-integrated 10-pin designs.

Availability

R5F10Y14DSP#10 is available at Aetrix Electronics and suitable for battery-powered sensor nodes, industrial control interfaces, consumer appliance controllers, and low-cost motor drive interfaces requiring stable component supply across automotive-qualified temperature ranges.

Supply support for R5F10Y14DSP#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 specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and IoT markets.

The RL78/G10 product line delivers true low-power, cost-optimized MCUs targeting space-constrained, battery-operated, and industrial control applications where reliability, simplicity, and minimal external components are critical design requirements.

FAQ

What is the maximum operating frequency of the R5F10Y14DSP#10?

The R5F10Y14DSP#10 supports a maximum high-speed on-chip oscillator frequency of 20 MHz (±2% accuracy from −20°C to +85°C) and up to 5 MHz when powered at 2.0–2.7 V. External crystal or clock input supports up to 20 MHz with appropriate VDD conditions. The R5F10Y14DSP#10 instruction cycle minimum is 0.05 µs at 20 MHz, enabling real-time response in time-critical tasks.

Does the R5F10Y14DSP#10 support hardware key interrupt functionality?

Yes, the R5F10Y14DSP#10 includes dedicated key return (KR) inputs on pins P40, P125, P137, P01, P02, and P03 - supporting up to 6-key matrix scanning with hardware acceleration. This offloads the CPU from polling and ensures sub-millisecond response to button presses, making the R5F10Y14DSP#10 ideal for appliance UIs and industrial HMI panels.

Can the R5F10Y14DSP#10 operate without an external crystal?

Yes, the R5F10Y14DSP#10 operates fully from its internal high-speed on-chip oscillator (1.25–20 MHz) with no external crystal required. Its ±2% accuracy over voltage and temperature eliminates crystal dependency in most applications, reducing BOM cost and PCB area - a key advantage of the R5F10Y14DSP#10 in cost-sensitive, low-pin-count designs.

What are the ADC capabilities of the R5F10Y14DSP#10?

The R5F10Y14DSP#10 integrates a 10-bit successive approximation ADC with 4 input channels (ANI0–ANI3), 3.4 µs conversion time, and support for 2.4 V reference voltage. It operates across the full 2.0–5.5 V supply range and enables accurate measurement of resistive sensors, thermistors, and potentiometers without external reference components.

Is the R5F10Y14DSP#10 pin-compatible with other RL78/G10 10-pin variants?

Yes, the R5F10Y14DSP#10 shares identical 10-pin LSSOP pinout and electrical characteristics with R5F10Y16DSP#10 and R5F10Y17DSP#10. All three variants support the same peripheral mapping, voltage range, and temperature grade (−40°C to +85°C), enabling seamless memory-scaling upgrades without PCB redesign - a key benefit of the R5F10Y14DSP#10 in scalable product families.