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Read operations, Cs si (input) so (output) – Rainbow Electronics AT45DB021E User Manual

Page 53

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53

AT45DB021E [PRELIMINARY DATASHEET]

8789B–DFLASH–11/2012

24.

Read Operations

The following block diagram and waveforms illustrate the various read sequences available.

Figure 24-1. Block Diagram

Figure 24-2. Main Memory Page Read

Flash Memory Array

Page (256/264 bytes)

Buffer (256/264 bytes)

I/O Interface

Main Memory

Page To

Buffer

Main Memory
Page Read

Buffer

Read

SO

CS

SI (Input)

SO (Output)

n

CMD

PA8-7

PA6-0, BA8

BA7-0

X

X

Address for Binary Page Size

A16

A15-A8

A7-A0

n

n + 1

4 Dummy Bytes