4 Mbit SuperFlash EEPROM
SST28SF040A / SST28VF040A
Data Sheet
AC CHARACTERISTICS
TABLE 11: READ CYCLE TIMING PARAMETERS FOR SST28SF040A
SST28SF040A-90
SST28SF040A-120
IEEE
Symbol
Industry
Symbol
Parameter
Min
Max
Min
Max
Units
ns
tAVAV
TRC
TAA
TCE
TOE
Read Cycle Time
90
120
tAVQV
tELQV
tGLQV
tEHQZ
tGHQZ
tELQX
tGLQX
tAXQX
Address Access Time
90
90
45
120
120
50
ns
Chip Enable Access Time
Output Enable Access Time
CE# Low to Active Output
OE# Low to Active Output
CE# High to High-Z Output
OE# High to High-Z Output
Output Hold from Address Change
ns
ns
1
TCLZ
0
0
0
0
ns
1
TOLZ
ns
1
TCHZ
20
20
30
30
ns
1
TOHZ
ns
1
TOH
0
0
ns
T11.6 310
1. This parameter is measured only for initial qualification and after a design or process change that could affect this parameter.
TABLE 12: READ CYCLE TIMING PARAMETERS FOR SST28VF040A
SST28VF040A-150
SST28VF040A-200
IEEE
Symbol
Industry
Symbol
Parameter
Min
Max
Min
Max
Units
ns
tAVAV
TRC
TAA
TCE
TOE
Read Cycle Time
150
200
tAVQV
tELQV
tGLQV
tEHQZ
tGHQZ
tELQX
tGLQX
tAXQX
Address Access Time
150
150
75
200
200
100
ns
Chip Enable Access Time
Output Enable Access Time
CE# Low to Active Output
OE# Low to Active Output
CE# High to High-Z Output
OE# High to High-Z Output
Output Hold from Address Change
ns
ns
1
TCLZ
0
0
0
0
ns
1
TOLZ
ns
1
TCHZ
40
40
60
60
ns
1
TOHZ
ns
1
TOH
0
0
ns
T12.5 310
1. This parameter is measured only for initial qualification and after a design or process change that could affect this parameter.
©2001 Silicon Storage Technology, Inc.
S71077-04-000 6/01 310
10
SST [ SILICON STORAGE TECHNOLOGY, INC ]
