m28256 STMicroelectronics, m28256 Datasheet - Page 9

• Manufacturer Part Number: m28256
• Description: 256 Kbit 32kb X8 Parallel Eeprom With Software Data Protection
• Manufacturer: STMicroelectronics

Table 10. Read Mode AC Characteristics
(T
Note: 1. Output Hi-Z is defined as the point at which data is no longer driven.
Table 11. Read Mode AC Characteristics
(T
Note: 1. Output Hi-Z is defined as the point at which data is no longer driven.
Symbol
Symbol
t
t
t
t
GHQZ
GHQZ
EHQZ
EHQZ
A
A
t
t
t
t
t
t
t
t
AVQV
ELQV
GLQV
AXQX
AVQV
ELQV
GLQV
AXQX
= 0 to 70 C or –40 to 85 C; V
= 0 to 70 C or –40 to 85 C; V
(1)
(1)
(1)
(1)
t
t
Alt
t
Alt
t
ACC
t
t
t
t
ACC
t
t
t
t
CE
OE
OH
CE
OE
OH
DF
DF
DF
DF
Address Valid to
Output Valid
Chip Enable Low to
Output Valid
Output Enable Low
to Output Valid
Chip Enable High to
Output Hi-Z
Output Enable High
to Output Hi-Z
Address Transition
to Output Transition
Address Valid to
Output Valid
Chip Enable Low to
Output Valid
Output Enable Low
to Output Valid
Chip Enable High to
Output Hi-Z
Output Enable High
to Output Hi-Z
Address Transition
to Output Transition
Parameter
Parameter
CC
CC
= 4.5V to 5.5V)
= 2.7V to 3.6V)
E = V
E = V
E = V
E = V
Test Condition
Test Condition
G = V
G = V
G = V
G = V
E = V
E = V
E = V
E = V
IL
IL
IL
IL
, G = V
, G = V
, G = V
, G = V
IL
IL
IL
IL
IL
IL
IL
IL
IL
IL
IL
IL
min max min max min max min max
min max min max min max min max
0
0
0
0
0
0
-90
-12
120
120
90
90
40
40
40
45
45
45
0
0
0
0
0
0
-12
-15
M28256-W
120
120
150
150
45
45
45
70
50
50
M28256
0
0
0
0
0
0
-15
-20
150
150
200
200
50
50
50
80
55
55
0
0
0
0
0
0
-20
-25
200
200
250
250
100
50
50
50
60
60
M28256
Unit
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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