L8C201/202/203/204
DEVICES INCORPORATED
512/1K/2K/4K x 9-bit Asynchronous FIFO
SWITCHING CHARACTERISTICS Over Commercial and Industrial Operating Range
EXPANSION TIMING (ns)
L8C201/202/203/204–
25
15
12
10
Symbol Parameter
Min Max Min Max Min Max Min Max
tALOL
tAHOH
tXLXH
tXHXL
tALXL
Read/Write to Expansion Out Low (Note 11)
25
25
15
15
12
12
12
12
Read/Write to Expansion Out High (Note 11)
Expansion In Pulse Width (Notes 9, 11)
25
10
15
15
10
12
12
10
8
10
10
8
Expansion In High to Expansion In Low (Notes 9, 11)
Read/Write Low to Expansion In Low (Notes 9, 11)
EXPANSION OUT
WRITE TO
LAST PHYSICAL
LOCATION
W
R
READ FROM
LAST PHYSICAL
LOCATION
t
ALOL
t
AHOH
t
ALOL
t
AHOH
XO
EXPANSION IN
tXLXH
tXHXL
XI
WRITE TO
FIRST PHYSICAL
LOCATION
t
ALXL
W
R
READ FROM
FIRST PHYSICAL
LOCATION
t
ALXL
OBSOLETE
FIFO Products
03/04/99–LDS.8C201/2/3/4-H
8
LOGIC [ LOGIC DEVICES INCORPORATED ]
