SST25VF020B データシートの表示（PDF） - Silicon Storage Technology

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SST25VF020B

2 Mbit SPI Serial Flash

Silicon Storage Technology 

2 Mbit SPI Serial Flash

SST25VF020B

CE#

MODE 3

SCK MODE 0

0 1 2345 6 7

SI

80

MSB

SO

HIGH IMPEDANCE

1417 DisableSO.0

FIGURE 9: Disable SO as Hardware RY/BY# during AAI Programming

Data Sheet

CE#

MODE 3 0 7 8 15 16 23 24 31 32 39 40 47

SCK MODE 0

SI

AD A

A A D0 D1

Load AAI command, Address, 2 bytes data

SO

0 7 8 15 16 23

AD D2 D3

0 7 8 15 16 23

AD Dn-1 Dn

Last 2

Data Bytes

Check for Flash Busy Status to load next valid1 command

Note: 1. Valid commands during AAI programming: AAI command or WRDI command

2. User must configure the SO pin to output Flash Busy status during AAI programming

07

0 7 8 15

WRDI

RDSR

WDRI to exit

AAI Mode

DOUT

Wait TBP or poll

Software Status register

to load any command

1417 AAI.HW.0

FIGURE 10: Auto Address Increment (AAI) Word-Program Sequence with

Hardware End-of-Write Detection

©2010 Silicon Storage Technology, Inc.

13

S71417-02-000

04/10

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