M28W320 데이터 시트보기 (PDF) - STMicroelectronics
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M28W320 Datasheet PDF : 69 Pages
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M28W320FCT, M28W320FCB
DC and AC parameters
Figure 8. Read AC Waveforms
A0-A20
E
G
DQ0-DQ15
tAVQV
tAVAV
VALID
tELQV
tELQX
tGLQX
tGLQV
VALID
tAXQX
tEHQX
tEHQZ
tGHQX
tGHQZ
ADDR. VALID
CHIP ENABLE
OUTPUTS
ENABLED
DATA VALID
STANDBY
AI02688b
Table 16. Read AC Characteristics
Symbol Alt
Parameter
M28W320FCT, M28W320FCB
70
85
90
10
tAVAV tRC Address Valid to Next Address Valid
Min 70
85
90
100
tAVQV tACC Address Valid to Output Valid
Max 70
85
90
100
tAXQX(1) tOH Address Transition to Output Transition Min
0
0
0
0
tEHQX(1) tOH Chip Enable High to Output Transition Min
0
0
0
0
tEHQZ(1) tHZ Chip Enable High to Output Hi-Z
Max 20
20
25
30
tELQV(2) tCE Chip Enable Low to Output Valid
Max 70
85
90
100
tELQX(1) tLZ Chip Enable Low to Output Transition
Min
0
0
0
0
tGHQX(1)
tOH
Output Enable High to Output
Transition
Min
0
0
0
0
tGHQZ(1) tDF Output Enable High to Output Hi-Z
Max 20
20
25
30
tGLQV(2) tOE Output Enable Low to Output Valid
Max 20
20
30
35
tGLQX(1) tOLZ Output Enable Low to Output Transition Min
0
0
0
0
1. Sampled only, not 100% tested.
2. G may be delayed by up to tELQV - tGLQV after the falling edge of E without increasing tELQV.
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
35/69
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