AS6UA25617
Write cycle (over the operating range)
–55
–70
–100
Parameter
Write cycle time
Symbol
tWC
tCW
tAW
Min
55
40
40
0
Max
–
Min
70
60
60
0
Max
–
Min
100
80
80
0
Max
–
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Notes
12
Chip selects to write end
Address setup to write end
Address setup time
–
–
–
–
–
–
tAS
–
–
–
12
Write pulse width
tWP
tAH
tDW
tDH
35
0
–
55
0
–
70
0
–
Address hold from end of write
Data valid to write end
Data hold time
–
–
–
25
0
–
30
0
–
40
0
–
–
–
–
4, 5
4, 5
4, 5
Write enable to output in high Z
Output active from write end
tWZ
tOW
tBW
0
20
–
0
20
–
0
20
–
5
5
5
UB/ LB low to end of write
35
–
55
–
70
–
Shaded areas indicate preliminary information.
Write waveform 1 (WE controlled)
t
t
WC
CW
Address
t
AH
CS1
CS2
t
CW
t
AH
t
BW
LB, UB
WE
t
AW
t
t
AS
WP
t
t
DH
DW
D
IN
Data valid
t
WZ
t
OW
D
OUT
Data undefined
High Z
Write waveform 2 (chip selects controlled)
t
WC
Address
t
t
AS
AH
AH
t
CW
CS1
CS2
t
t
AW
AW
t
CW
t
t
AS
t
BW
LB, UB
WE
t
WP
t
t
DH
DW
Data valid
High Z
D
IN
t
t
CLZ
WZ
t
OW
D
Data undefined
OUT
High Z
5