M28W640CT Datasheet, PDF (24/54 Pages) STMicroelectronics – 64 Mbit 4Mb x16, Boot Block 3V Supply Flash Memory

M28W640CT, M28W640CB
Figure 9. Read AC Waveforms
A0-A21
E
G
DQ0-DQ15
tAVQV
tAVAV
VALID
tELQV
tELQX
tGLQX
tGLQV
VALID
ADDR. VALID
CHIP ENABLE
OUTPUTS
ENABLED
DATA VALID
tAXQX
tEHQX
tEHQZ
tGHQX
tGHQZ
STANDBY
AI04387
Table 15. Read AC Characteristics
Symbol Alt
Parameter
M28W640C
80
90
t_AVAV
t_RC Address Valid to Next Address Valid
Min
80
90
t_AVQV t_ACC Address Valid to Output Valid
Max
80
90
t_AXQX ^{(1) t}OH Address Transition to Output Transition Min
0
0
t_EHQX ^{(1) t}OH Chip Enable High to Output Transition
Min
0
0
t_EHQZ ^{(1) t}HZ Chip Enable High to Output Hi-Z
Max
20
25
t_ELQV ^{(2) t}CE Chip Enable Low to Output Valid
Max
80
90
t_ELQX ^{(1) t}LZ Chip Enable Low to Output Transition
Min
0
0
t_GHQX ^{(1) t}OH Output Enable High to Output Transition Min
0
0
t_GHQZ ^{(1) t}DF Output Enable High to Output Hi-Z
Max
20
25
t_GLQV ⁽²⁾ tOE Output Enable Low to Output Valid
Max
20
30
t_GLQX ⁽¹⁾ tOLZ Output Enable Low to Output Transition Min
0
0
Note: 1. Sampled only, not 100% tested.
2. G may be delayed by up to t_ELQV - t_GLQV after the falling edge of E without increasing t_ELQV.
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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