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S3A7

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48MHz Arm Cortex-M4 CPU

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Overview

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.

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S3A7 Block Diagram
S3A7 Block Diagram
  • 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

Documentation

Design & Development

ECAD Models

Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on the CAD Model links in the Product Options table. If a symbol or model isn't available, it can be requested directly from SamacSys.

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Resources

Support Communities

  1. S3A7 microcontroller short-circuit

    Hello, I try to use a S3A7 microcontroller 64pins and I have some troubles. There is a short-circuit between pin 4 (VBATT) and 5 (VCL). I designed the PCB for tieing VCL to GND through a capacitor and VBATT to VCC. I tested 2 microcontrollers on the same PCB ...

    Sep 20, 2017
  2. "Undefined Instruction" while trying to debug S3A7

    Hello, I back with another issue. Now I try to load a program onto a S3A77C3A01CFB. My Program is almost empty, it consists only of one line to switch on a LED on my board and a while(1) loop. On every other board this works, but on my S3A7 ...

    Oct 2, 2018
  3. "Undefined Instruction" while trying to debug S3A7

    Hello, I back with another issue. Now I try to load a program onto a S3A77C3A01CFB. My Program is almost empty, it consists only of one line to switch on a LED on my board and a while(1) loop. On every other board this works, but on my S3A7 ...

    Oct 2, 2018
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FAQs

  1. Place Code and Constants into a Designated Location in Flash

    ... and using a macro in the code. Below is a description of how to do this:1) In the mcu.ld (for example, if the S3A7 is being targeted, edit the s3a7.ld file),  dd some readable executable memory at the top in the MEMORY section such as: MY_SEC ...

    Jan 1, 1970
  2. How do I measure MCU power dissipation on Synergy kits and correlate to data sheet values?

    ... instead, you will find power dissipation metrics correlate with the data sheet values. Without this approach the values will be higher. For example, on the S3A7 the data sheet 5.1mA number for High-Speed mode, Normal operation, at 16 MHz can be as much as 7.3 mA (also ...

    Oct 4, 2016