Features
- 48MHz Arm Cortex-M4 CPU
- Ideal for monitoring applications that may require ongoing feature upgrades for multiple services
- The S3A1 MCU Group offers ample room for expansion
- Additional 12-bit D/A converter
- Multiple 32-bit general PWM timers
- Serial communications interfaces
Description
Ideal for monitoring applications that may require ongoing feature upgrades for multiple services, the S3A1 MCU Group offers ample room for expansion and the optimal combination of low power and high performance, with an Arm® Cortex®-M4 CPU core running up to 48MHz, 1MB of flash memory, and 192KB of SRAM. It includes an additional 12-bit D/A converter as well as multiple 32-bit general PWM timers and serial communications interfaces.
Synergy Software Package (SSP)
Commercial software worth over $100K which is available to developers using the Synergy Platform for no charge and with unlimited production license rights. The production-ready SSP is fully tested, maintained, and supported by Renesas.
Applications
- Indoor Outdoor Weather Station
| Part Number | Status | Samples | Longevity | Stock | RoHS | Package | Budgetary Price (USD) | Program Memory (KB) | Data Flash (KB) | SRAM | Lead Count (#) | Operating Voltage Range (V) | Operating Freq (Max) (MHz) | DAC | I/O Ports | CAN (ch) | Safety | Security & Encryption | Family Name | DMA | Ethernet | MOQ | Moisture Sensitivity Level (MSL) | Country of Assembly | Country of Wafer Fabrication |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| R7FS3A17C2A01CBJ#AC0 | Obsolete | Available | In Stock | Contact | LFBGA | 1024KB | 8KB | 192 KB | 121# | 1.6 - 5.5 | 48MHz | 8-bit x 2-ch, 12-bit x 1-ch | 104 | 1 | Yes | Unique ID, TRNG, AES(128/256), GHASH | Synergy | No | No | 1 | 3 | ||||
| R7FS3A17C2A01CLJ#AC0 | NRND | Available | 2030 Dec | In Stock | Contact | TFLGA | 1ku | $6.21 | 1024KB | 8KB | 192 KB | 100# | 1.6 - 5.5 | 48MHz | 8-bit x 2-ch, 12-bit x 1-ch | 84 | 1 | Yes | Unique ID, TRNG, AES(128/256), GHASH | Synergy | No | No | 1 | 3 | JAPAN | JAPAN |
| R7FS3A17C2A01CLK#AC0 | NRND | Available | 2030 Dec | In Stock | Contact | TFLGA | 1ku | $6.69 | 1024KB | 8KB | 192 KB | 145# | 1.6 - 5.5 | 48MHz | 8-bit x 2-ch, 12-bit x 1-ch | 126 | 1 | Yes | Unique ID, TRNG, AES(128/256), GHASH | Synergy | No | No | 1 | 3 | JAPAN | JAPAN |
| R7FS3A17C3A01CFB#AA0 | NRND | Available | 2033 May | In Stock | Contact | LFQFP | 1ku | $8.77 | 1024KB | 8KB | 192 KB | 144# | 1.6 - 5.5 | 48MHz | 8-bit x 2-ch, 12-bit x 1-ch | 126 | 1 | Yes | Unique ID, TRNG, AES(128/256), GHASH | Synergy | No | No | 1 | 3 | CHINA | JAPAN |
| R7FS3A17C3A01CFB#BA0 | NRND | N/A | 2036 Mar | In Stock | Contact | LFQFP | 1ku | $8.77 | 1024KB | 8KB | 192 KB | 144# | 1.6 - 5.5 | 48MHz | 8-bit x 2-ch, 12-bit x 1-ch | 126 | 1 | Yes | Unique ID, TRNG, AES(128/256), GHASH | Synergy | No | 480 | 3 | CHINA | JAPAN | |
| R7FS3A17C3A01CFM#AA0 | NRND | Available | 2033 May | In Stock | Contact | LFQFP | 1ku | $7.84 | 1024KB | 8KB | 192 KB | 64# | 1.6 - 5.5 | 48MHz | 8-bit x 2-ch, 12-bit x 1-ch | 52 | 1 | Yes | Unique ID, TRNG, AES(128/256), GHASH | Synergy | No | No | 1 | 3 | CHINA | JAPAN |
| R7FS3A17C3A01CFM#BA0 | NRND | N/A | 2036 Mar | In Stock | Contact | LFQFP | 1ku | $7.84 | 1024KB | 8KB | 192 KB | 64# | 1.6 - 5.5 | 48MHz | 8-bit x 2-ch, 12-bit x 1-ch | 52 | 1 | Yes | Unique ID, TRNG, AES(128/256), GHASH | Synergy | No | 1280 | 3 | CHINA | JAPAN | |
| R7FS3A17C3A01CFP#AA0 | NRND | Available | 2033 May | In Stock | Contact | LFQFP | 1ku | $6.21 | 1024KB | 8KB | 192 KB | 100# | 1.6 - 5.5 | 48MHz | 8-bit x 2-ch, 12-bit x 1-ch | 84 | 1 | Yes | Unique ID, TRNG, AES(128/256), GHASH | Synergy | No | No | 1 | 3 | CHINA | JAPAN |
| R7FS3A17C3A01CFP#BA0 | NRND | N/A | 2036 Mar | In Stock | Contact | LFQFP | 1ku | $6.21 | 1024KB | 8KB | 192 KB | 100# | 1.6 - 5.5 | 48MHz | 8-bit x 2-ch, 12-bit x 1-ch | 84 | 1 | Yes | Unique ID, TRNG, AES(128/256), GHASH | Synergy | No | 720 | 3 | CHINA | JAPAN | |
| R7FS3A17C3A01CNB#AC0 | Obsolete | N/A | Out of Stock | RoHS:EN RoHS:JA | HWQFN | 1024KB | 8KB | 192 KB | 64# | 1.6 - 5.5 | 48MHz | 8-bit x 2-ch, 12-bit x 1-ch | 52 | 1 | Yes | Unique ID, TRNG, AES(128/256), GHASH | Synergy | No | No | 1 | 3 | ||||
| R7FS3A17C3A01CNB#BA0 | NRND | N/A | Out of Stock | Contact | QFN | 1ku | $5.99 | 1024KB | 8KB | 192 KB | 64# | 1.6 - 5.5 | 48MHz | 8-bit x 2-ch, 12-bit x 1-ch | 52 | 1 | Yes | Unique ID, TRNG, AES(128/256), GHASH | Synergy | No | No | 2784 | 3 | TAIWAN | JAPAN |
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- Application NoteThis application note describes parameter tuning methods using QE for Capacitive Touch for microcontrollers that incorporate a Capacitive Touch Sensing Unit (CTSU). In addition to the default auto-tuning process, it provides an overview of the Advanced mode and adjustable CTSU parameters for optimizing touch performance.
- Application NoteThis application note provides the design principles and layout examples of touch electrodes for microcontrollers embedded with a Capacitive Touch Sensing Unit (CTSU). It outlines recommended design practices and considerations for both self‑capacitance and mutual‑capacitance methods, covering electrode geometry, routing, and shielding structures. In addition, it describes the application examples for each sensing method.
- Application NoteAI-generated Summary: Capacitive touch sensor microcontrollers utilize Renesas' Capacitive Touch Sensing Unit (CTSU) technology embedded in RX, RA, RL78 families, and Renesas Synergy™. The document explains capacitance detection principles, including self-capacitance and mutual-capacitance methods, and details the evolution from first-generation sensors to advanced CTSU2. It covers MCU lineups, hardware design guidelines, software configuration, tuning procedures, development environments, and evaluation kits to support capacitive touch product development. The CTSU converts capacitance changes into measurable signals, applying filtering and threshold judgment to detect touch inputs accurately.
- Technical UpdatePDF 771 KB TN-SY*-A0086A/E May 13, 2025
- Technical UpdatePDF 222 KB TN-SY*-A0082B/E Mar 14, 2025
- Technical UpdatePDF 610 KB TN-SY*-A0082A/E Jan 17, 2025
- Application NoteAI-generated Summary: The guide explains methods to enhance noise immunity for capacitive touch sensor MCUs by addressing environmental noise issues that affect capacitance measurements. It covers noise types such as radiated RF, conducted noise, electrostatic discharge (ESD), and electrical fast transients (EFT), referencing IEC 61000-4 standards. The document details hardware and software countermeasures, including board design, multi-frequency measurement, filtering techniques, and protection circuits. It targets RX, RA, RL78 MCU families and Renesas Synergy devices embedding the CTSU module, providing practical design guidelines and evaluation results to ensure stable capacitive touch operation under noisy conditions.
- Manual - HardwareS3A1 Microcontroller Group User's ManualRECOMMENDED
- DatasheetS3A1 Microcontroller Group DatasheetRECOMMENDEDPDF 1.8 MB R01DS0324EU0130 Rev.1.30 Dec 19, 2024
- Application NoteAI-generated Summary: The document explains how to integrate and use IAR Systems compilers within the e² studio development environment for Renesas microcontrollers. It details the installation of IAR Embedded Workbench and IAR Eclipse plugins, project creation, build configuration, and build execution using IAR compilers. The guide focuses on the RA family with the IAR ARM compiler but applies similarly to other Renesas devices. It also recommends using standalone Flexible Software Package configurators for RA and RZ families to enhance development. The environment setup assumes Windows 10 64-bit, e² studio 2024-07, and IAR tools installed.
- Technical UpdatePDF 95 KB TN-SY*-A0078A/E Dec 12, 2023
- DatasheetS3A1 Microcontroller Group DatasheetRECOMMENDEDPDF 1.8 MB R01DS0324EU0130 Rev.1.30 Dec 19, 2024
- Manual - HardwareS3A1 Microcontroller Group User's ManualRECOMMENDED
Recommended Documents (2)
- DatasheetS3A1 Microcontroller Group DatasheetRECOMMENDEDPDF 1.8 MB R01DS0324EU0130 Rev.1.30 Dec 19, 2024
Datasheets (1)
- Manual - HardwareS3A1 Microcontroller Group User's ManualRECOMMENDED
Manuals & Guides (2)
- Application NoteThis application note describes parameter tuning methods using QE for Capacitive Touch for microcontrollers that incorporate a Capacitive Touch Sensing Unit (CTSU). In addition to the default auto-tuning process, it provides an overview of the Advanced mode and adjustable CTSU parameters for optimizing touch performance.
- Application NoteThis application note provides the design principles and layout examples of touch electrodes for microcontrollers embedded with a Capacitive Touch Sensing Unit (CTSU). It outlines recommended design practices and considerations for both self‑capacitance and mutual‑capacitance methods, covering electrode geometry, routing, and shielding structures. In addition, it describes the application examples for each sensing method.
- Application NoteAI-generated Summary: Capacitive touch sensor microcontrollers utilize Renesas' Capacitive Touch Sensing Unit (CTSU) technology embedded in RX, RA, RL78 families, and Renesas Synergy™. The document explains capacitance detection principles, including self-capacitance and mutual-capacitance methods, and details the evolution from first-generation sensors to advanced CTSU2. It covers MCU lineups, hardware design guidelines, software configuration, tuning procedures, development environments, and evaluation kits to support capacitive touch product development. The CTSU converts capacitance changes into measurable signals, applying filtering and threshold judgment to detect touch inputs accurately.
- Application NoteAI-generated Summary: The guide explains methods to enhance noise immunity for capacitive touch sensor MCUs by addressing environmental noise issues that affect capacitance measurements. It covers noise types such as radiated RF, conducted noise, electrostatic discharge (ESD), and electrical fast transients (EFT), referencing IEC 61000-4 standards. The document details hardware and software countermeasures, including board design, multi-frequency measurement, filtering techniques, and protection circuits. It targets RX, RA, RL78 MCU families and Renesas Synergy devices embedding the CTSU module, providing practical design guidelines and evaluation results to ensure stable capacitive touch operation under noisy conditions.View More (38)
Application Notes & White Papers (38)
- Product Change Notice
- Product Change Notice
Product Notices (PCN, EOL, etc) (3)
- Technical UpdatePDF 771 KB TN-SY*-A0086A/E May 13, 2025
- Technical UpdatePDF 222 KB TN-SY*-A0082B/E Mar 14, 2025
- Technical UpdatePDF 610 KB TN-SY*-A0082A/E Jan 17, 2025
Errata & Technical Updates (19)
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- BrochurePDF 1.5 MB R00ZZ0009EU0100 Rev.1.00 Apr 06, 2018
- BrochurePDF 1021 KB R00ZZ0008EU0100 Rev.1.00 Apr 06, 2018
- BrochureRenesas Synergy™ MCUs Build a Foundation for Groundbreaking Integrated Embedded Platform DevelopmentPDF 481 KB R00ZZ0007EU0100 Rev.1.00 Apr 06, 2018
- BrochurePDF 177 KB R00ZZ0010EU0100 Rev.1.00 Apr 06, 2018View More (9)
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Renesas Boards & Kits
TB-S3A1 Target Board Kit
The S3A1 Target Board (TB-S3A1) allows developers to experience the full feature set of the 48MHz Arm® Cortex®-M4 core S3A1 microcontrollers (MCUs) that provide a host of analog and security functions to realize a variety of embedded systems and IoT designs. Users can experience the full... Read More
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- Software PackageA tightly integrated, optimized, and qualified suite of software with a commercial RTOS that scales with end-product complexity that simplifies complex system-level services.
- Solution ToolkitIn developing embedded system using the capacitive touch sensor of MCUs, you can easily setup initial configurations of the touch interface as well as process the tuning of sensors, and reduce development time. [Plugin for Renesas IDE "e2 studio"] [Standalone Version] [Support MCU/MPU:RA, RL78, RX, Renesas Synergy™]
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- Software PackageA tightly integrated, optimized, and qualified suite of software with a commercial RTOS that scales with end-product complexity that simplifies complex system-level services.
- Solution ToolkitIn developing embedded system using the capacitive touch sensor of MCUs, you can easily setup initial configurations of the touch interface as well as process the tuning of sensors, and reduce development time. [Plugin for Renesas IDE "e2 studio"] [Standalone Version] [Support MCU/MPU:RA, RL78, RX, Renesas Synergy™]
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- Development ToolUniversal third-party programmers support a wide range of Renesas programmable devices across both off-board and on-board programming modes.Provided By: Elnec s.r.o.
- Development ToolProvides high-volume automated programming systems engineered for factory-scale production, enabling efficient handling of a wide range of integrated circuit (IC) devices. Optimized for microcontrollers (MCUs) and flash memory, the systems support tube, tape, and tray input/output configurations for flexible manufacturing integration. Advanced auto-teach alignment capabilities ...Provided By: DediProg Technology Co., Ltd.
- Development ToolProvides universal device programming systems combining algorithms, process-control software, and socket modules for Renesas microcontroller production. Enables high-volume programming across the RA, RX, RL78, RH850, RZ, R8C, V850, M16C, H8, H8SX, H8S, SH, 78K and Synergy families using 9th- and 10th-generation universal site technology. Supports new socket ...Provided By: BPM Microsystems
- Development ToolProvides highly reliable device programming solutions trusted by leading domestic and international semiconductor manufacturers, built on technologies developed through many years of innovation. Supports a wide range of requirements, from development‑stage programming to high‑volume production environments. Enables flexible manufacturing by offering a comprehensive lineup of automatic programming systems ...Provided By: Minato Advanced Technologies Inc.
- Development ToolHigh-speed automated programming platforms are designed for large-scale production environments that demand precision handling and consistent throughput. These systems support a wide range of Renesas IC programming through dedicated socket adapters and advanced actuator technology, enabling accurate and efficient device handling. Integrated proprietary hardware security modules allow for ...Provided By: HI-LO SYSTEMS RESEARCH CO.,LTD.View More (27)
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Support Communities
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S3A1 (+5V) USB LDO not working
Hello, I have a problem with the cpu S3A1 when powered at +5V and using the VCC_USB_LDO, even if configured it seems not activated by the configuration. it would appear to be a bug of the SSP, I've tried both 1.5.0 and 2.0.0 ...
Sep 9, 2021 -
Compile error: Button_CTSU_TB_S3A1
I have downloaded and unzipped the Button_CTSU_TB_S3A1 example. When I load it into IAR and try to compile it, 44 errors are listed. Most of them stating that source files cannot be found?
May 21, 2018 -
TB-S3A1 - Can someone help find the application example for UART?
I'm just getting started with TBS3A1. Would appreciate resource for application examples. I've uploaded a sample project where I've been trying to configure the usb for uart but been running into some compilation issues. Please find the attached.TB_S3A1_USB_UART.zip Thanks & Regards, Suren
Aug 12, 2021
Knowledge Base
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r_adc Module Guide Resources
... complete. The ADC HAL module supports the following features: 16-Bit A/D Converter (S1JA) 14-Bit A/D Converter (S3A7, S3A3, S3A6, S3A1, S128, S124) 12-Bit A/D Converter (S7G2, S5D9, S5D5) Multiple Operation Modes Single Scan Group Scan Continuous Scan Multiple Channels All analog ...
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Can USB run without an external oscillator on Synergy MCUs?
Question: Can USB run without an external crystal on Synergy MCUs? Answer: The S3A1, S3A3 and S3A6 have the ability to operate a full speed USB interface in function mode (device mode) without the need for an external crystal and associated circuitry. It accomplishes this by driving the USB peripheral ...