
4 Mbit (x16) Multi-Purpose Flash
A Microchip Technology Company
SST39WF400B
Data Sheet
Internal Timer
Program/Erase
Initiated
Wait TBP,
TSCE, TSE
or TBE
Toggle Bit
Program/Erase
Initiated
Read word
Data# Polling
Program/Erase
Initiated
Read DQ7
Read same
No
Is DQ7 =
Program/Erase
Completed
No
word
Does DQ6
match
true data
Yes
Program/Erase
Completed
Yes
Program/Erase
Completed
1370 F17.0
Figure 19: Wait Options
?2011 Silicon Storage Technology, Inc.
25
DS25034A
09/11