WS512K8-XCX
White Electronic Designs
AC CHARACTERISTICS
(VCC = 5.0V, GND = 0V, -55°C ≤ TA ≤ 125°C)
-20
-25
-35
-45
Parameter
Read Cycle
Symbol
Units
Min
Max
Min
Max
Min
Max
Min
Max
Read Cycle Time
tRC
tAA
20
25
35
45
ns
ns
ns
ns
ns
ns
ns
ns
ns
Address Access Time
20
25
35
45
Output Hold from Address Change
Chip Select Access Time
tOH
tACS
tOE
3
3
3
3
20
10
25
10
35
25
45
35
Output Enable to Output Valid
Chip Select to Output in Low Z
Output Enable to Output in Low Z
Chip Disable to Output in High Z
Output Disable to Output in High Z
1. This parameter is guaranteed by design but not tested.
1
tCLZ
3
0
3
0
3
0
3
0
1
tOLZ
1
tCHZ
15
12
17
15
20
20
30
25
1
tOHZ
AC CHARACTERISTICS
(VCC = 5.0V, GND =0V, -55°C ≤ TA ≤ 125°C)
-20
-25
-35
-45
Parameter
Write Cycle
Symbol
Units
Min
20
16
16
15
16
2
Max
Min
25
20
20
15
20
2
Max
Min
35
25
25
20
25
2
Max
Min
45
30
30
25
30
2
Max
Write Cycle Time
tWC
tCW
tAW
tDW
tWP
tAS
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Chip Select to End of Write
Address Valid to End of Write
Data Valid to End of Write
Write Pulse Width
Address Setup Time
Address Hold Time
tAH
2
2
2
2
1
Output Active from End of Write
Write Enable to Output in High Z
Data Hold Time
tOW
4
5
5
5
1
tWHZ
10
0
15
0
20
0
25
tDH
1
1
1
1
1. This parameter is guaranteed by design but not tested.
December 2004
Rev. 5
3
White Electronic Designs Corporation • (602) 437-1520 • www.whiteedc.com
WEDC [ WHITE ELECTRONIC DESIGNS CORPORATION ]
