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GENERAL DESCRIPTION

The ZB25VQ128D of non-volatile flash memory device supports the standard Serial Peripheral Interface(SPI).Traditional SPI single bit serial input and output(Single I/O or SIO)is supported as well as optional two bit(Dual I/O or DIO)and four bit(quad I/O or QIO)serial protocols.This multiple width interface is called SPI Multi-I/O or MIO.

The SPI protocols use only 4 to 6 signals:

?Chip Select(CS#)

?Serial Clock(CLK)

?Serial Data

-IO0(DI)

-IO1(DO)

-IO2(WP#)

-IO3(HOLD#/RESET#)