Renesas R7FS3A17C3A01CFP#AA0

Overview

R7FS3A17C3A01CFP#AA0 from Renesas is a 48-MHz Arm Cortex-M4 microcontroller with FPU, 1-MB code flash, 192-KB SRAM, and integrated Segment LCD Controller (SLCDC), Capacitive Touch Sensing Unit (CTSU), USB 2.0 Full-Speed, 14-bit ADC, and CAN interface - deployed in industrial HMI panels requiring real-time touch response, local display control, and fieldbus connectivity.

For engineers reviewing the R7FS3A17C3A01CFP#AA0 datasheet, R7FS3A17C3A01CFP#AA0 pinout, R7FS3A17C3A01CFP#AA0 application, or R7FS3A17C3A01CFP#AA0 equivalent, key selection criteria include its -40°C to +105°C operating range, 100-pin LQFP package, 14-bit ADC with 18-channel support, dual AGT timers for low-power wake-up, and SCE5 security engine with AES128/256 and TRNG.

Technical Context

This MCU implements an Armv7E-M architecture with DSP extensions and single-precision FPU, supporting deterministic real-time execution up to 48 MHz. Its memory subsystem includes ECC-protected SRAM (16 KB), 8-KB data flash rated for 100,000 P/E cycles, and Memory Mirror Function (MMF) enabling flexible firmware load/link address separation.

The system integrates dual watchdogs (WDT and IWDT), Clock Frequency Accuracy Measurement Circuit (CAC), and register write protection for functional safety compliance. Peripheral interconnect is orchestrated via Event Link Controller (ELC), allowing direct module-to-module triggering without CPU intervention - critical for low-latency sensor-to-display or touch-to-USB data paths.

Key Specifications

Pinout & Package

Package: 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch), RoHS-compliant Sn terminal finish, rated for -40°C to +105°C ambient operation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R7FS3A17C3A01CFP#AA0, the R7FS3A17C2A01CLJ trades extended temperature for LGA packaging and slightly reduced I/O count, while the R7FS3A17C3A01CFB retains the same grade but adds 23 more GPIOs and 10 extra ADC channels - making it suitable for feature-rich variants of the same product family.

Availability

R7FS3A17C3A01CFP#AA0 is available at Aetrix Electronics and suitable for industrial HMI panels, smart energy meters, medical handhelds, and automotive body control modules requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for R7FS3A17C3A01CFP#AA0 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 applications - with over 40 years of microcontroller innovation and ISO 26262/IEC 61508 certified development processes.

The R7FS3A17C3A01CFP#AA0 belongs to the Renesas Synergy™ S3A1 Microcontroller Group, designed specifically for scalable, secure, and low-power human-machine interface applications - integrating LCD, touch, USB, and CAN in a single chip to reduce BOM cost and design complexity.

FAQ

What is the maximum operating frequency and core architecture of the R7FS3A17C3A01CFP#AA0?

The R7FS3A17C3A01CFP#AA0 features an Arm Cortex-M4 core with Floating Point Unit (FPU), operating at a maximum frequency of 48 MHz. It implements the Armv7E-M architecture with DSP instruction set and supports single-precision IEEE 754 floating-point operations - enabling efficient execution of control algorithms, digital filters, and real-time signal processing tasks within the R7FS3A17C3A01CFP#AA0's embedded applications.

Does the R7FS3A17C3A01CFP#AA0 support USB device and host functionality?

Yes, the R7FS3A17C3A01CFP#AA0 integrates a USB 2.0 Full-Speed Module (USBFS) that supports both device and host roles. It includes an on-chip transceiver with integrated 3.3-V LDO regulator, complies with USB Battery Charging Specification 1.2, and provides up to 10 configurable pipes - allowing the R7FS3A17C3A01CFP#AA0 to act as a USB peripheral (e.g., HID device) or enumerate as a host for keyboards, flash drives, or diagnostics tools.

How many analog input channels does the 14-bit ADC support on the R7FS3A17C3A01CFP#AA0?

The R7FS3A17C3A01CFP#AA0's 14-bit A/D Converter (ADC14) supports 18 analog input channels, as confirmed in Table 1.12 of the datasheet for the 100-pin LQFP variant. This includes dedicated inputs for the on-chip temperature sensor (TSN) and internal reference voltage, with selectable 12-bit or 14-bit resolution to balance speed and accuracy in the R7FS3A17C3A01CFP#AA0's measurement applications.

What LCD and touch capabilities are integrated into the R7FS3A17C3A01CFP#AA0?

The R7FS3A17C3A01CFP#AA0 integrates a Segment LCD Controller (SLCDC) supporting up to 8 commons × 17 segments and a Capacitive Touch Sensing Unit (CTSU) with 24 electrode inputs. The SLCDC includes internal voltage boosting, contrast adjustment across 16 steps, and automatic segment/common waveform generation - while the CTSU provides hardware-accelerated self- and mutual-capacitance scanning, enabling robust touch button and slider implementation directly within the R7FS3A17C3A01CFP#AA0 without external controllers.

Is the R7FS3A17C3A01CFP#AA0 qualified for automotive or industrial temperature ranges?

Yes, the R7FS3A17C3A01CFP#AA0 is qualified for industrial and extended-temperature operation from -40°C to +105°C, as indicated by the "3" in its part number suffix (per Figure 1.2). This rating applies specifically to its 100-pin LQFP package (PLQP0100KB-B) and validates its use in demanding environments such as factory automation panels, outdoor energy meters, and under-hood automotive modules where thermal stability is critical for the R7FS3A17C3A01CFP#AA0's long-term reliability.