M29W640GH, M29W640GL, M29W640GT, M29W640GB
Table 18. Read ac characteristics
DC and ac parameters
M29W640GT,
M29W640GB,
M29W640GH,
M29W640GL
Symbol
Alt
Parameter
Test Condition
Unit
60
70
90
E = VIL,
G = VIL
tAVAX
tAVQV
tAVQV1
tRC Address Valid to Next Address Valid
tACC Address Valid to Output Valid
Min
60
70
90
ns
ns
ns
E = VIL,
G = VIL
Max
Max
60
25
70
30
90
30
E = VIL,
G = VIL
tPAGE Address Valid to Output Valid (Page)
(1)
tELQX
tLZ
Chip Enable Low to Output Transition
G = VIL
G = VIL
E = VIL
E = VIL
G = VIL
Min
Max
Min
0
0
0
ns
ns
ns
ns
ns
tELQV
tCE Chip Enable Low to Output Valid
tOLZ Output Enable Low to Output Transition
tOE Output Enable Low to Output Valid
tHZ Chip Enable High to Output Hi-Z
60
0
70
0
90
0
(1)
tGLQX
tGLQV
Max
Max
25
25
30
30
30
30
(1)
tEHQZ
tGHQZ
tDF Output Enable High to Output Hi-Z
E = VIL
Max
Min
25
0
30
0
30
0
ns
ns
ns
(1)
tEHQZ
tEHQX
tGHQX
tAXQX
Chip Enable, Output Enable or Address
Transition to Output Transition
tOH
tELBL
tELBH
tBLQZ
tBHQV
tELFL
Chip Enable to BYTE Low or High
tELFH
Max
5
5
5
tFLQZ BYTE Low to Output Hi-Z
tFHQV BYTE High to Output Valid
Max
Max
25
25
25
30
25
30
ns
ns
1. Sampled only, not 100% tested.
49/90
NUMONYX [ NUMONYX B.V ]
