Renesas R5F10Y46ASP#30

Overview

R5F10Y46ASP#30 from Renesas 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 smart home control modules.

For engineers reviewing the R5F10Y46ASP#30 datasheet, R5F10Y46ASP#30 pinout, R5F10Y46ASP#30 application, or R5F10Y46ASP#30 equivalent, this page delivers verified technical context, package-validated pin functions, real-world use-value metrics, and two confirmed alternative parts for design flexibility in cost-sensitive, low-power embedded systems.

Technical Context

The R5F10Y46ASP#30 implements the RL78-S1 core - a Harvard-architecture CISC with 3-stage pipeline, where 78% of instructions execute in 1–2 clock cycles. Its power management includes STOP mode (0.61 µA at 3.0 V) and HALT mode (360–900 µA), enabled by selectable power-on reset (SPOR) with four voltage thresholds and dual on-chip oscillators (20 MHz high-speed ±2%, 15 kHz low-speed).

Peripherals are tightly coupled to low-power operation: the 7-channel 10-bit ADC achieves 3.4 µs conversion time and supports internal reference (0.815 V) and comparator input (IVCMP0/IVREF0/VCOUT0), while the 4-channel TAU0 timer supports PWM output on three channels and interval timing via dedicated 12-bit interval timer - all functional in 16-pin SSOP configuration.

Key Specifications

Pinout & Package

Package: 16-pin plastic SSOP (4.4 × 5.0 mm, 0.65 mm pitch), RoHS-compliant, 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 R5F10Y46ASP#30, R5F10Y47ASP#30 offers headroom for future firmware expansion without layout change, while R5F10Y44ASP#30 reduces BoM cost where memory constraints allow - both share identical low-power behavior, peripheral set, and 16-pin SSOP package.

Availability

R5F10Y46ASP#30 is available at Aetrix Electronics and suitable for battery-powered sensor nodes, smart home controllers, and portable medical devices requiring stable component supply and long-term industrial temperature support (–40°C to +85°C).

Supply support for R5F10Y46ASP#30 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 is a global semiconductor leader specializing in microcontrollers, analog, and power solutions for automotive, industrial, and IoT markets.

The RL78/G10 product line delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive, battery-operated applications where energy efficiency, small footprint, and integrated analog peripherals are critical.

FAQ

What is the maximum operating frequency of the R5F10Y46ASP#30?

The R5F10Y46ASP#30 supports a maximum system clock frequency of 20 MHz using its high-speed on-chip oscillator, which operates with ±2% accuracy across –40°C to +85°C and 2.0–5.5 V supply. External crystal or clock input up to 20 MHz is also supported, but the on-chip oscillator eliminates external components for most applications. The R5F10Y46ASP#30 achieves 0.05 µs minimum instruction execution time at 20 MHz.

Does the R5F10Y46ASP#30 include an integrated ADC, and what are its key specs?

Yes, the R5F10Y46ASP#30 integrates a 7-channel, 10-bit successive approximation register (SAR) ADC with 3.4 µs conversion time and support for 2.4 V reference voltage. It includes internal 0.815 V reference and comparator inputs (IVCMP0, IVREF0, VCOUT0), enabling calibrated analog sensing without external references. All seven channels map to dedicated pins (ANI0–ANI6) on the 16-pin SSOP package.

What package type and pin count does the R5F10Y46ASP#30 use?

The R5F10Y46ASP#30 uses a 16-pin plastic SSOP package (4.4 × 5.0 mm, 0.65 mm pitch) with industrial temperature rating (–40°C to +85°C). This matches the RL78/G10 16-pin variant family and is distinct from the 10-pin LSSOP option. Pin functions include 14 GPIOs, 7 ADC inputs, UART, two CSI interfaces, I²C, and dedicated key interrupt lines (KR0–KR5).

How does the R5F10Y46ASP#30 achieve ultra-low power consumption?

The R5F10Y46ASP#30 achieves ultra-low power via multiple hardware features: STOP mode draws just 0.61 µA at 3.0 V with RAM retention, HALT mode consumes 360–900 µA depending on clock source, and active operation is rated at 46 µA/MHz. These modes are controlled by the RL78-S1 core's power management unit and supported by selectable SPOR, low-speed 15 kHz oscillator, and peripheral gating - all documented in the R5F10Y46ASP#30 datasheet sections 1.1 and 2.3.2.

Can the R5F10Y46ASP#30 be used as a direct replacement for R5F10Y44ASP#30 or R5F10Y47ASP#30?

The R5F10Y46ASP#30 shares identical pinout, package, voltage ratings, temperature range, and peripheral set with R5F10Y44ASP#30 and R5F10Y47ASP#30, making it a drop-in replacement in terms of hardware layout and electrical interface. Firmware compatibility depends on memory usage: R5F10Y44ASP#30 has only 1 KB Flash/128 B RAM, while R5F10Y47ASP#30 provides 4 KB/512 B - the R5F10Y46ASP#30 (2 KB/256 B) sits between them and requires no PCB changes.