l8c201 LOGIC Devices Incorporated, l8c201 Datasheet - Page 10

• Manufacturer Part Number: l8c201
• Description: 512/1k/2k/4k 9-bit Asynchronous Fifo
• Manufacturer: LOGIC Devices Incorporated

DEVICES INCORPORATED
F
E
R
Symbol
F
SWITCHING CHARACTERISTICS
t
t
t
t
t
t
t
t
t
RLQV
RLEL
RHFH
WHEH
WLFL
TLAL
TLTH
AHTH
THAL
ULL
MPTY
ULL
ETRANSMIT
HF, EF, FF
DATA
/E
F
OUT
FF
W
LAG FROM
R
F
W, R
MPTY
EF
Parameter
Read Low to Output Valid
Read Low to Empty Flag Low
Read High to Full Flag High
Write High to Empty Flag High
Write Low to Full Flag Low
Retransmit Cycle Time
Retransmit Low to End of Retransmit Cycle
Read/Write High to Retransmit High
Retransmit High to Read/Write Low
W
R
LAG FROM
RT
F
LAG AND
L
AST
L
AST
LAST WRITE
W
LAST READ
R
R
ETRANSMIT
RITE TO
EAD TO
(Access Time)
t
WLFL
t
RLEL
t
VALID
F
RLQV
F
(Note 9)
IRST
(Notes 8, 9, 10)
IRST
T
IGNORED
IMING
WRITE
IGNORED
R
W
READ
Over Military Operating Range
(Notes 8, 9, 10)
EAD
RITE
(ns)
t
t
TLTH
WHEH
FIRST READ
t
FIRST WRITE
AHTH
512/1K/2K/4K x 9-bit Asynchronous FIFO
10
t
TLAL
t
RHFH
ADDITIONAL
ADDITIONAL
READS
WRITES
ADDITIONAL
t
THAL
WRITES
FIRST READ
Min
50
40
40
10
L8C201/202/203/204
40
L8C201/202/203/204–
Max
40
30
35
35
35
VALID
FIFO Products
Min
40
30
30
10
03/04/99–LDS.8C201/2/3/4-H
30
FLAG VALID
Max
30
30
30
30
30
Min
30
20
20
10
20
Max
20
20
20
20
20