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Using C18/HI-TECH C compiler to interface serial SRAM devices to PIC16F/PIC18F microcontrollers

Posted: 11 Sep 2009 ?? ?Print Version ?Bookmark and Share

Keywords:interface serial SRAM? PIC16F/PIC18F microcontroller? system design?

Microchip's serial SRAM product line represents a new way to add additional RAM to an application. With the small 8-pin packages and the SPI interface, these devices give designers added system flexibility. The 23XXXX series of serial SRAM devices from Microchip Technology support a half-duplex protocol that functions on a master-slave paradigm that is ideally suited to data stream applications.

The bus is controlled by the microcontroller (master), which accesses the 23XXXX using the MSSP peripheral built into the MCU configured for SPI operation. The MSSP peripheral can support throughput up to 5MHz or 8MHz depending upon the device family of PIC16/18 MCU Selected. Communication can be paused using the HOLD pin.

This application note is part of a series that provide source code to help the user implement the protocol with minimal effort.

View the PDF document for more information.

Click here to view related datasheets

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