Figure 9
AC Waveforms Chip/Sector
Erase Operations
Addresses
5555H
tAS
tAH
2AAAH
CE
OE
WE
Data
VCC
tGHWL
tWP
tWPH
tCE
tDH
AAH
tDS
55H
tVCE
Notes:
1. SA is the sector address for sector erase.
Data Polling
5555H
5555H
2AAAH
80H
AAH
55H
SA
10H/30H
Figure 10
AC Waveforms for Data Polling
During Embedded Algorithm Operations
tCH
CE
OE
tOEH
WE
D7
D0-D6
tDF
tOE
tCE
tWHWH1 or 2
tOH
*
D7=
D7
Valid Data
High Z
D0–D6=Invalid
D0–D6
Valid Data
tOE
* D7=Valid Data (The device has completed the Embedded operation).
Aeroflex Circuit Technology
14
SCD1676 REV A 5/6/98 Plainview NY (516) 694-6700