Features
- 48MHz Arm Cortex-M4 CPU
- Ideal for monitoring applications that may require ongoing feature upgrades for multiple services
- The S3A7 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 S3A7 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 | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| R7FS3A77C2A01CBJ#AC1 | Obsolete | Available | In Stock | LFBGA | 1024KB | 16KB | 192 KB | 121# | 1.6 - 5.5 | 48MHz | 12-bit x 2-ch | 124 | 1 | Yes | Unique ID, TRNG, AES(128/256), GHASH | Synergy | No | No | 1 | 3 | ||||
| R7FS3A77C2A01CLJ#AC1 | NRND | Available | 2030 Dec | In Stock | TFLGA | 1ku | $6.21 | 1024KB | 16KB | 192 KB | 100# | 1.6 - 5.5 | 48MHz | 12-bit x 2-ch | 124 | 1 | Yes | Unique ID, TRNG, AES(128/256), GHASH | Synergy | No | No | 1 | 3 | JAPAN | JAPAN |
| R7FS3A77C2A01CLK#AC1 | NRND | Available | 2030 Dec | In Stock | TFLGA | 1ku | $6.69 | 1024KB | 16KB | 192 KB | 145# | 1.6 - 5.5 | 48MHz | 12-bit x 2-ch | 124 | 1 | Yes | Unique ID, TRNG, AES(128/256), GHASH | Synergy | No | No | 1 | 3 | JAPAN | JAPAN |
| R7FS3A77C3A01CFB#AA1 | NRND | Available | 2031 Jun | In Stock | LFQFP | 1ku | $10.53 | 1024KB | 16KB | 192 KB | 144# | 1.6 - 5.5 | 48MHz | 12-bit x 2-ch | 124 | 1 | Yes | Unique ID, TRNG, AES(128/256), GHASH | Synergy | No | No | 1 | 3 | CHINA | JAPAN |
| R7FS3A77C3A01CFB#BA1 | NRND | N/A | 2036 Mar | Out of Stock | LFQFP | 1ku | $10.53 | 1024KB | 16KB | 192 KB | 144# | 1.6 - 5.5 | 48MHz | 12-bit x 2-ch | 124 | 1 | Yes | Unique ID, TRNG, AES(128/256), GHASH | Synergy | No | 480 | 3 | CHINA | JAPAN | |
| R7FS3A77C3A01CFM#AA1 | NRND | Available | 2031 Jun | In Stock | LFQFP | 1ku | $7.05 | 1024KB | 16KB | 192 KB | 64# | 1.6 - 5.5 | 48MHz | 12-bit x 2-ch | 124 | 1 | Yes | Unique ID, TRNG, AES(128/256), GHASH | Synergy | No | No | 1 | 3 | CHINA | JAPAN |
| R7FS3A77C3A01CFM#BA1 | NRND | N/A | 2036 Mar | Out of Stock | LFQFP | 1ku | $7.05 | 1024KB | 16KB | 192 KB | 64# | 1.6 - 5.5 | 48MHz | 12-bit x 2-ch | 124 | 1 | Yes | Unique ID, TRNG, AES(128/256), GHASH | Synergy | No | 1280 | 3 | CHINA | JAPAN | |
| R7FS3A77C3A01CFP#AA1 | NRND | Available | 2031 Jun | In Stock | LFQFP | 1ku | $8.13 | 1024KB | 16KB | 192 KB | 100# | 1.6 - 5.5 | 48MHz | 12-bit x 2-ch | 124 | 1 | Yes | Unique ID, TRNG, AES(128/256), GHASH | Synergy | No | No | 1 | 3 | CHINA | JAPAN |
| R7FS3A77C3A01CFP#BA1 | NRND | N/A | 2036 Mar | In Stock | LFQFP | 1ku | $8.13 | 1024KB | 16KB | 192 KB | 100# | 1.6 - 5.5 | 48MHz | 12-bit x 2-ch | 124 | 1 | Yes | Unique ID, TRNG, AES(128/256), GHASH | Synergy | No | 720 | 3 | CHINA | JAPAN | |
| R7FS3A77C3A01CNB#BA1 | NRND | N/A | Out of Stock | QFN | 1ku | $7.05 | 1024KB | 16KB | 192 KB | 64# | 1.6 - 5.5 | 48MHz | 12-bit x 2-ch | 124 | 1 | Yes | Unique ID, TRNG, AES(128/256), GHASH | Synergy | No | No | 2784 | 3 | TAIWAN | JAPAN |
Filters
Applied Filters
- 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: Capacitive touch sensors measure capacitance changes caused by finger contact using a sensor drive pulse and current measurement. Ripple noise from the power supply or peripheral circuits distorts these measurements by adding noise currents, causing inaccurate touch detection. To ensure high accuracy and reliability, power supply design must minimize ripple noise. The document explains measurement principles, ripple noise effects, and countermeasures including power supply circuit selection, switching circuits, board layout, and touch parameter tuning. It covers RX, RL78, and RA family MCUs embedding CTSU1 and CTSU2 types of capacitive touch sensing units.
- Technical UpdatePDF 285 KB TN-SY*-A0087A/E May 30, 2025
- Technical UpdatePDF 771 KB TN-SY*-A0086A/E May 13, 2025
- Technical UpdatePDF 222 KB TN-SY*-A0082B/E Mar 14, 2025
- Manual - HardwareS3A7 Microcontroller Group User's ManualRECOMMENDED
- DatasheetS3A7 Microcontroller Group DatasheetRECOMMENDEDPDF 1.75 MB R01DS0263EU0150 Rev.1.50 Feb 28, 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.
- 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.
- DatasheetS3A7 Microcontroller Group DatasheetRECOMMENDEDPDF 1.75 MB R01DS0263EU0150 Rev.1.50 Feb 28, 2025
- Manual - HardwareS3A7 Microcontroller Group User's ManualRECOMMENDED
Recommended Documents (2)
- DatasheetS3A7 Microcontroller Group DatasheetRECOMMENDEDPDF 1.75 MB R01DS0263EU0150 Rev.1.50 Feb 28, 2025
Datasheets (1)
- Manual - HardwareS3A7 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: Capacitive touch sensors measure capacitance changes caused by finger contact using a sensor drive pulse and current measurement. Ripple noise from the power supply or peripheral circuits distorts these measurements by adding noise currents, causing inaccurate touch detection. To ensure high accuracy and reliability, power supply design must minimize ripple noise. The document explains measurement principles, ripple noise effects, and countermeasures including power supply circuit selection, switching circuits, board layout, and touch parameter tuning. It covers RX, RL78, and RA family MCUs embedding CTSU1 and CTSU2 types of capacitive touch sensing units.
Application Notes & White Papers (48)
- Product Change Notice
- Product Change Notice
Product Notices (PCN, EOL, etc) (3)
- Technical UpdatePDF 285 KB TN-SY*-A0087A/E May 30, 2025
- 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
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Errata & Technical Updates (34)
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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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- 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™]
- Solution ToolkitKey wrapping tool for key management systems using Renesas security IP. Enables secure installation and update of user application and device lifecycle management (DLM) keys.
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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™]
- Solution ToolkitKey wrapping tool for key management systems using Renesas security IP. Enables secure installation and update of user application and device lifecycle management (DLM) keys.
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Simulation Models (8)
- 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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S3A7 part number
what is the different between R7FS3A77C3A01CFB#AA1 and R7FS3A77C3A01CFB#BA1 at the end? the part number in the the datasheet section 1.3 does not indicate anything about "BA1" Thanks
Sep 9, 2022 -
Problem import existing code with Driver Uart from S3A7 to S7G2 (SSP1.7.8) ?
Hello, I imported an existing code from our custom card with S3A7 into a new custom card with S7G2. In this existing code we use a UART driver on SCI2 (common port on the 2 microcontrollers).When code runs with S7G2, the API functions return Success, both during port initiation ...
Sep 4, 2020 -
S3A7 Development Kit Connection problems
I have a S3A7 Development Kit and am unable to connect with either the on-board or an external Segger J-link. This is the second consecutive NEW board that has had this same problem, and I have 2 others, which I have had for some time that I am ...
Nov 2, 2019
Knowledge Base
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What are the specifications for the DK-S3A7 V2 LCD Panel?
Question: What are the specifications for the LCD Panel for the DK-S3A7 V 2.0? Answer: The specifications are attached below documents. DK- LCD Specification: DK-S3A7-LCD_v2.0.pdf The Data Sheet: LXD-M7190A_DS_(4.3_300NIT_RT).pdf FEMA Specification: Fema_T6022A-1PRPO_BEV_B ...
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The PODR and PDR registers for the S3A7 are incorrectly addressed in SSP 1.7.8
The PODR and PDR registers for the S3A7 are incorrectly addressed in SSP 1.7.8. This can result in the wrong values being shown in the IO Registers view in the debugger, but the issue does not impact writing and running of code. Solution: S3A7.sfrx file located at ...
Nov 5, 2020 -
r_adc Module Guide Resources
... new sample is 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 ...