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