You are here

AN89659 - Interfacing SPI F-RAM with PSoC® 4 | Cypress Semiconductor

AN89659 - Interfacing SPI F-RAM with PSoC® 4

Last Updated: 
Mar 02, 2021
Version: 
*A

AN89659 shows how to interface Serial Peripheral Interface (SPI) F-RAM with Cypress's PSoC®4 (Programmable System-on-Chip) device with the help of example circuits, timing diagrams, and pseudo code. You can also use this application note as a reference design guide to interface SPI F-RAM with other standard SPI master controllers. This application note includes an associated PSoC 4 example project.

Introduction

The SPI F-RAM is a serial nonvolatile memory employing an advanced ferroelectric process. A ferroelectric random access memory (F-RAM) is a nonvolatile RAM that eliminates the complexities, overhead, and system-level reliability problems caused by serial EEPROM and other nonvolatile memories. Unlike serial EEPROM and flash memories, the F-RAM performs write operations at bus speed without incurring any write delays (NoDelay™). Data is directly written into the memory array, and the next bus cycle can begin immediately without the need for data polling. The F-RAM products offer a very high endurance of 1014, orders of magnitude higher than serial EEPROM and flash memories.

Dear valued customer,

Thank you for choosing our products. They come with all the know-how and passion that our engineers have put into it. As you probably already know, Cypress is now Infineon. This is a major step for our company, but also for the good of you. 

Reliability and business continuity are of utmost importance for us. Hence, we remain fully committed to honoring existing customer and distributor relationships. This includes offering the legacy Cypress product portfolio. We thank you very much for your trusting support.

For the full version of this message, please download the PDF version.

Translated documents are for reference only. We recommend that you refer to the English-language version of a document if you are engaged in development of a design.