SPI bus protocol, what is spi, spi code, Microchip EEPROM, EEPROM burner

 CAT25128 Series 128 Kbit (16K x 8) 5.5 V SPI Serial CMOS EEPROM - SOIC-8

https://www.futureelectronics.com/p/semiconductors--memory--RAM--eeprom--spi-interface-protocol/cat25128vi-gt3-onsemi-3929064