参数资料
型号: IDT72V295L15PF8
厂商: IDT, Integrated Device Technology Inc
文件页数: 10/26页
文件大小: 0K
描述: IC FIFO SUPERSYNCII 15NS 64-TQFP
标准包装: 750
系列: 72V
功能: 同步
存储容量: 2.3K(64 x 36)
访问时间: 15ns
电源电压: 3 V ~ 3.6 V
工作温度: 0°C ~ 70°C
安装类型: 表面贴装
封装/外壳: 64-LQFP
供应商设备封装: 64-TQFP(14x14)
包装: 带卷 (TR)
其它名称: 72V295L15PF8
18
COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGES
IDT72V295/72V2105 3.3V HIGH DENSITY CMOS
SUPERSYNC FIFOTM 131,072 x 18, 262,144 x 18
Figure
9.
Write
Timing
(First
Word
Fall
Through
Mode)
NOTES:
1.
tSKEW1
is
the
minimum
time
between
a
rising
WCLK
edge
and
a
rising
RCLK
edge
to
guarantee
that
OR
will
go
LOW
after
two
RCLK
cycles
plus
t
REF
.If
the
time
between
the
rising
edge
of
WCLK
and
the
rising
edge
of
RCLK
is
less
than
t
SKEW1
,
then
OR
assertion
may
be
delayed
one
extra
RCLK
cycle.
2.
tSKEW2
is
the
minimum
time
between
a
rising
WCLK
edge
and
a
rising
RCLK
edge
to
guarantee
that
PAE
will
go
HIGH
after
one
RCLK
cycle
plus
t
PAE
.If
the
time
between
the
rising
edge
of
WCLK
and
the
rising
edge
of
RCLK
is
less
than
t
SKEW2
,
then
the
PAE
deassertion
may
be
delayed
one
extra
RCLK
cycle.
3.
LD
=
HIGH,
OE
=
LOW
4.
n=
PAE
offset,
m
=
PAF
offset
and
D
=
maximum
FIFO
depth.
5.
D
=
131,073
for
IDT72V295
and
262,145
for
IDT72V2105.
6.
First
word
latency:
t
SKEW1
+
2*T
RCLK
+
t
REF
.
W
1
W
2
W
4
W
[n
+2]
W
[D-m-1]
W
[D-m-2]
W
[D
-1]
W
D
W
[n+3]
W
[n+4]
W
[D-m]
W
[D-m+1]
WCLK
WEN
D
0
-
D
17
RCLK
tDH
tDS
tSKEW1
(1)
REN
Q
0
-Q
17
PAF
HF
PAE
IR
tDS
tSKEW2
(2)
tA
tREF
OR
tPAE
tHF
tWFF
W
[D-m+2]
W
1
tENH
4668
drw
12
DATA
IN
OUTPUT
REGISTER
W
3
1
2
3
1
]
[
W
]
[
W
]
[
W
1
2
tPAF
tENS
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