Renesas R5F12017ASP#30

Overview

R5F12017ASP#30 from Renesas Electronics is a 10-pin, 4 KB flash, 1 KB RAM RL78/G15 16-bit microcontroller with integrated 8/10-bit A/D converter (4 channels), UART, simplified SPI (2 channels), simplified I²C (2 channels), and 8-channel 16-bit timer array - designed for low-power industrial sensor nodes and smart peripherals operating from 2.4 V to 5.5 V.

For engineers reviewing the R5F12017ASP#30 datasheet, R5F12017ASP#30 pinout, R5F12017ASP#30 application, or R5F12017ASP#30 equivalent, this page delivers verified electrical specs, validated package mapping to LSSOP-10, confirmed debug interface (TOOL0/TOOLRxD/TOOLTxD), and real-world timing/peripheral trade-offs for rapid integration into battery-powered control systems.

Technical Context

The RL78 CPU core implements a CISC architecture with 3-stage pipeline and supports configurable instruction execution time (0.0625 μs at 16 MHz up to 1.0 μs at 1 MHz). It integrates a selectable power-on-reset circuit with four voltage thresholds (2.25 V to 4.45 V) and operates across −40°C to +105°C (G-grade) using its high-speed on-chip oscillator (1–16 MHz, ±1.0% accuracy from −20°C to +85°C).

Peripherals include an 8/10-bit A/D converter with internal reference (0.815 V), two comparator channels (IVCMP0/IVREF0), programmable clock/buzzer output (PCLBUZ0), and serial interfaces supporting both master and slave modes - all managed via dedicated peripheral I/O redirection registers (PIOR) for flexible pin assignment without hardware changes.

Key Specifications

Pinout & Package

Package: 10-pin LSSOP (4.4 × 3.6 mm, 0.65-mm pitch), RoHS-compliant, tray-packaged (#30 specification).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F12017ASP#30, R5F12018ASP#30 offers double flash capacity with zero hardware impact, while R5F12047ASP#30 trades compactness for expanded analog and communication resources - enabling scalable design paths from cost-sensitive to feature-rich implementations.

Availability

R5F12017ASP#30 is available at Aetrix Electronics and suitable for industrial motor monitors, smart thermostat nodes, white goods control panels, and medical infusion pump controllers requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for R5F12017ASP#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, power, and SoC solutions for automotive, industrial, and IoT markets.

The RL78/G15 product line delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive, battery-operated, and thermally constrained embedded applications - balancing performance, integration, and energy efficiency.

FAQ

What is the maximum operating temperature range supported by the R5F12017ASP#30?

The R5F12017ASP#30 is rated for industrial applications (G-grade) with an operating ambient temperature range of −40°C to +105°C. This specification is confirmed in the datasheet's "Operating ambient temperature" section and applies to the exact part number R5F12017ASP#30 under standard VDD = 2.4–5.5 V conditions. The device maintains full functionality-including A/D conversion accuracy, oscillator stability, and flash write endurance-across this full range.

Does the R5F12017ASP#30 support crystal oscillator input for precise timing?

Yes, the R5F12017ASP#30 supports external crystal oscillator input via X1/X2 pins - but only on 16-pin and 20-pin variants. The 10-pin R5F12017ASP#30 does not include X1/X2 pins; its pinout (Table 1-3) confirms absence of crystal connections. Timing relies solely on the high-speed on-chip oscillator (1–16 MHz) or external clock input (EXCLK) applied to P122, which is present on this variant.

How many analog input channels are available on the R5F12017ASP#30?

The R5F12017ASP#30 provides 4 analog input channels: ANI0, ANI1, ANI2, and ANI3 - mapped to pins P01, P02, P03, and P04 respectively. This is explicitly stated in Table 1-3 ("Multiplexed Functions of 10-pin Products") and confirmed in Section 1.6 ("Outline of Functions"), which lists "4 channels" for A/D converter under the 10-pin column corresponding to R5F12017.

Can the R5F12017ASP#30 perform background data flash writes while executing code from flash?

No, the R5F12017ASP#30 does not support background operation (BGO) for data flash writes. As documented in the "Data flash memory" feature list, "Background operation (BGO) is not supported - instructions cannot be executed from the code flash memory while rewriting the data flash memory." Code execution must be halted or relocated to RAM during data flash programming sequences.

What debug interface does the R5F12017ASP#30 use, and which pins are required?

The R5F12017ASP#30 uses Renesas' on-chip debug interface via three dedicated pins: P40 (TOOL0), P01 (TOOLRxD), and P00 (TOOLTxD). These pins provide full debug functionality including program download, breakpoint setting, and real-time variable inspection - eliminating the need for external debug adapters. Pin assignments are defined in Table 1-3 and Figure 1-1 of the R01DS0420EJ0140 datasheet.