參數(shù)資料
型號(hào): IDT72T72105L4-4BB
廠商: IDT, Integrated Device Technology Inc
文件頁數(shù): 36/53頁
文件大?。?/td> 0K
描述: IC FIFO 65536X72 4-4NS 324-BGA
標(biāo)準(zhǔn)包裝: 1
系列: 72T
訪問時(shí)間: 3.2ns
電源電壓: 2.375 V ~ 2.625 V
工作溫度: 0°C ~ 70°C
安裝類型: 表面貼裝
封裝/外殼: 324-BGA
供應(yīng)商設(shè)備封裝: 324-PBGA(19x19)
包裝: 托盤
其它名稱: 72T72105L4-4BB
41
COMMERCIAL AND INDUSTRIAL
TEMPERATURE RANGES
IDT72T7285/72T7295/72T72105/72T72115 2.5V TeraSync
72-BIT FIFO
16,384 x 72, 32,768 x 72, 65,536 x 72, 131,072 x 72
Figure
19.
Retransmit
from
Mark
(First
Word
Fall
Through
Mode)
tREF
tENS
tENH
5994
drw24
tENS
W
MK-1
WCLK
RCLK
REN
RT
OR
PAF
HF
PAE
Q
n
12
1
tPAFS
tREF
2
WEN
tENS
tA
tENS
W
MK
W
MK+1
tA
W
MK+n
tA
W
MK+1
W
MK+2
tA
tENS
MARK
tENH
tENS
tPAES
(6)
tA
tSKEW2
W
MK
tA
tHF
3
NOTES:
1
.
Retransmit
setup
is
complete
when
OR
returns
LOW.
2.
OE
=
LOW;
RCS
=
LOW.
3.
RT
must
be
HIGH
when
reading
from
FIFO.
4
.
Once
MARK
is
set,
the
write
pointer
will
not
increment
past
the
‘marked’
location,
preventing
overwrites
of
Retransmit
data.
5
.
Before
a
“MARK”
can
be
set
there
must
be
at
least
x
number
of
bytes
of
data
between
the
Write
Pointer
and
Read
Pointer
locati
ons.
For
the
IDT72T7285/72T7295/72T72105
x
=
128,
for
the
IDT72T72115
x
=
256.
Remember,
8
bytes
=
4
(x16)
words
=
2
(x36)
words
=
1
(x72)
word.
6
.
A
transition
in
the
PAE
flag
may
occur
one
RCLK
cycle
earlier
than
shown,
(on
cycle
2).
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