1 Gb (128 MB) Dual-Quad FL-S Flash SPI Multi-I/O, 3.0 V
SPI with multiple input / output (SPI-MIO)
dual-quad
2
SPI with multiple input / output (SPI-MIO) dual-quad
Many memory devices connect to their host system with separate parallel control, address, and data signals that
require a large number of signal connections and larger package size. The large number of connections increase
power consumption due to so many signals switching and the larger package increases cost.
The S79FL01GS device reduces the number of signals for connection to the host system by serially transferring
all control, address, and data information over 10 signals. This reduces the cost of the memory package, reduces
signal switching power, and either reduces the host connection count or frees host connectors for use in
providing other features.
The S79FL01GS Dual-Quad SPI device uses the industry standard single bit serial peripheral interface (SPI) using
two Quad SPI devices in each package (Quad SPI-1 and Quad SPI-2). This interface is called Dual-Quad and
enables support of Byte wide (8 bit) serial transfers. There is one package option available for S79FL01GS:
• 24-ball BGA package with separate balls for CS1#, SCK1 (Quad SPI-1) and CS2#, SCK1 (Quad SPI-2).
For documentation simplicity, all AC timings and waveforms and DC specification are defined using single CS#
(Chip Select) and SCK (Serial Clock) signals. For S79FL01GS, the CS# signal for Quad SPI-1 and Quad SPI-2 are
externally tied together, and the SCK signal for Quad SPI-1 and Quad SPI-2 are externally tied together.
Datasheet
6
002-00466 Rev. *H
2022-07-19