SST25VF040B View Datasheet(PDF) - Silicon Storage Technology

Part Name

Description

Manufacturer

SST25VF040B

4 Mbit SPI Serial Flash

Silicon Storage Technology 

4 Mbit SPI Serial Flash

SST25VF040B

CE#

MODE 3

SCK MODE 0

0 1 2345 6 7

SI

80

MSB

SO

HIGH IMPEDANCE

1295 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

0 7 8 15 16 23

0 7 8 15 16 23

07

0 7 8 15

SI

AD A A A D0 D1

AD D2 D3

AD Dn-1 Dn

WRDI

RDSR

Load AAI command, Address, 2 bytes data

Last 2

Data Bytes

WDRI to exit

AAI Mode

SO

DOUT

Check for Flash Busy Status to load next valid1 command

Wait TBP or poll

Software Status register

to load any 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

1295 AAI.HW.0

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

Hardware End-of-Write Detection

©2009 Silicon Storage Technology, Inc.

13

S71295-05-000

10/09

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