Rainbow Electronics AT45DQ321 - Manual (Page 5)

5 AT45DQ321 [ADVANCE DATASHEET]
DS-45DQ321-031–DFLASH–12/2012
2. Block Diagram
Figure 2-1. Block Diagram
Flash Memory Array
I/O Interface
SCK
CS
RESET
V
CC
GND
WP
SO SI
Page (512/528 bytes)
Buffer 1 (512/528 bytes) Buffer 2 (512/528 bytes)
Note: I/O3-0 pin naming convention is used for Dual-I/O and Quad-I/O commands.
(I/O
0
)
(I/O
3
)
(I/O
2
)
(I/O
1
)