ACD82124 Datasheet, PDF (36/48 Pages) List of Unclassifed Manufacturers – 24 Ports 10/100 Fast Ethernet Switch Controller

ASRAM Read Tim ing
ADDRESS
__
OE
__
CE
SRAM Read Tim ing
DATA
HIGH-Z
t2
t4
t6
t7
t5
t1
t3
VALID DATA
t8
t9
HIGH-Z
T#
D e s c rip tio n
M IN TYP M AX UNIT
t1
R ead cycle tim e
-
20
-
ns
t2 A ddress access tim e
-
-
12
ns
t3
O utput hold tim e
0
-
-
ns
t4
O E access tim e
-
-
12
ns
t5
C E access tim e
-
-
12
ns
t6
O E to Low-Z output
0
-
-
ns
t7
CE to Low-Z output
0
-
-
ns
t8
O E to H igh-Z output
-
-
6
ns
t9
C E to H igh-Z output
-
-
6
ns
ASRAM W rite Tim ing
ADDRESS
__
CE
___
WE
DATA
t1
t2
t3
t4
t5
t6
t7
t8
VALID DATA
T#
Description
M IN TYP M AX UNIT
t1
W rite cycle tim e
-
20
-
ns
t2 Address Setup to W rite End tim e
12
-
-
ns
t3
Address hold for W rite End tim e
0
-
-
ns
t4
CE to W rite End tim e
12
-
-
ns
t5
Address Setup tim e
4
-
-
ns
t6
W E pulse width
8
-
-
ns
t7
Data Setup to W rite End
8
-
-
ns
t8
Data Hold for W rite End
0
-
-
ns
36