EDI88257CAXCB WEDC [White Electronic Designs Corporation], EDI88257CAXCB Datasheet - Page 3

• Manufacturer Part Number: EDI88257CAXCB
• Description: 256Kx8 Monolithic SRAM
• Manufacturer: WEDC [White Electronic Designs Corporation]

1. This parameter is guaranteed by design but not tested.
1. This parameter is guaranteed by design but not tested.
White Electronic Designs Corp. reserves the right to change products or specifi cations without notice.
May 2000
Rev. 2
Parameter
Read Cycle Time
Address Access Time
Chip Enable Access Time
Chip Enable to Output in Low Z (1)
Chip Disable to Output in High Z (1)
Output Hold from Address Change
Output Enable to Output Valid
Output Enable to Output in Low Z (1)
Output Disable to Output in High Z(1)
Parameter
Write Cycle Time
Chip Enable to End of Write
Address Setup Time
Address Valid to End of Write
Write Pulse Width
Write Recovery Time
Data Hold Time
Write to Output in High Z (1)
Data to Write Time
Output Active from End of Write (1)
White Electronic Designs
JEDEC
JEDEC
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
WLWH
WHDX
DVWH
WHQX
GHQZ
ELWH
AVWH
WLEH
WHAX
WLQZ
AVQV
ELQV
ELQX
EHQZ
AVQX
GLQV
GLQX
ELEH
AVWL
AVEH
EHAX
EHDX
DVEH
AVAV
AVAV
AVEL
AC CHARACTERISTICS – WRITE CYCLE
AC CHARACTERISTICS – READ CYCLE
Symbol
Symbol
t
t
t
t
t
Alt.
t
t
Alt.
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
OHZ
t
t
t
t
WHZ
WLZ
ACS
CLZ
CHZ
OLZ
WC
CW
CW
WR
WR
DW
DW
RC
OH
OE
AW
AW
WP
WP
DH
DH
AA
AS
AS
V
V
CC
CC
= 5.0V, Vss = 0V, -55°C ≤ T
= 5.0V, V
Min
Min
20
20
15
15
15
15
15
15
10
10
3
0
0
0
0
0
0
0
0
0
0
0
0
20ns
20ns
SS
Max
Max
20
20
10
= 0V, -55°C≤ T
30
8
8
3
Min
Min
25
25
17
17
17
17
17
17
12
12
3
0
0
0
0
0
0
0
0
0
0
0
0
25ns
25ns
A
A
≤ +125°C
Max
Max
≤ +125°C
25
25
10
12
10
30
White Electronic Designs Corporation • [phone] • www.wedc.com
Min
Min
35
35
25
25
25
25
25
25
20
20
3
0
0
0
0
0
0
0
0
0
0
0
0
35ns
35ns
Max
Max
35
35
15
15
15
25
Min
Min
45
45
30
30
30
30
30
30
25
25
3
0
0
0
0
0
0
0
0
0
0
0
0
45ns
45ns
Max
Max
45
45
20
25
20
30
EDI88257CA
Min
Min
55
55
30
30
30
30
30
30
25
25
3
0
0
0
0
0
0
0
0
0
0
0
0
55ns
55ns
Max
Max
55
55
20
25
20
30
Units
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns