M28W640 STMicroelectronics, M28W640 Datasheet - Page 24

• Manufacturer Part Number: M28W640
• Description: 64 Mbit 4Mb x16/ Boot Block 3V Supply Flash Memory
• Manufacturer: STMicroelectronics

M28W640CT, M28W640CB
Figure 9. Read AC Waveforms
Table 15. Read AC Characteristics
Note: 1. Sampled only, not 100% tested.
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t
t
t
t
t
t
t
t
t
Symbol
GHQX
EHQX
GHQZ
AXQX
EHQZ
ELQV
ELQX
GLQV
GLQX
t
t
AVQV
AVAV
DQ0-DQ15
2. G may be delayed by up to t
A0-A21
(2)
(1)
(1)
(1)
(1)
(2)
(1)
E
G
(1)
(1)
t
t
t
t
t
t
ACC
t
t
Alt
t
t
OLZ
t
RC
OH
OH
OH
OE
HZ
CE
DF
LZ
Address Valid to Next Address Valid
Address Valid to Output Valid
Address Transition to Output Transition
Chip Enable High to Output Transition
Chip Enable High to Output Hi-Z
Chip Enable Low to Output Valid
Chip Enable Low to Output Transition
Output Enable High to Output Transition
Output Enable High to Output Hi-Z
Output Enable Low to Output Valid
Output Enable Low to Output Transition
CHIP ENABLE
ADDR. VALID
ELQV
- t
GLQV
Parameter
tGLQX
tAVQV
tELQX
after the falling edge of E without increasing t
tELQV
OUTPUTS
ENABLED
tGLQV
tAVAV
VALID
Max
Max
Max
Max
Max
Min
Min
Min
Min
Min
Min
DATA VALID
VALID
80
80
80
20
80
20
20
0
0
0
0
0
M28W640C
ELQV
.
tEHQX
tGHQX
tEHQZ
90
90
90
25
90
25
30
STANDBY
tGHQZ
0
0
0
0
0
tAXQX
AI04387
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns