參數(shù)資料
型號: FS6053
廠商: Electronic Theatre Controls, Inc.
英文描述: LOW-SKEW CLOCK FANOUT BUFFER ICs
中文描述: 低偏移時鐘扇出緩沖器集成電路
文件頁數(shù): 11/19頁
文件大小: 386K
代理商: FS6053
XT
April 1999
4.5.99
11
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Table 10: AC Timing Specifications
Unless otherwise stated, all power supplies = 3.3V ± 5%, no load on any output, and ambient temperature range T
= 0°C to 70°C. Parameters denoted with an asterisk ( * ) represent nominal
characterization data and are not currently production tested to any specific limits. MIN and MAX characterization data are
±
3
σ
from typical.
PARAMETER
SYMBOL
CONDITIONS/DESCRIPTION
CLOCK
(MHz)
MIN.
TYP.
MAX.
UNITS
Overall
66.67
100
66.67
100
66.67
100
66.67
182
228
3.7
3.8
3.7
4.0
3.9
Clock Skew, Maximum;
SDRAM_0 to any SDRAM pin *
t
skw
Measured on the rising edge at 1.5V;
C
L
= 20pF
ps
t
PLH(min)
Measured on the rising edge at 1.5V;
C
L
= 20pF
t
PLH(max)
Measured on the rising edge at 1.5V;
C
L
= 30pF
t
PHL(min)
Measured on the rising edge at 1.5V;
C
L
= 20pF
100
66.67
100
3.8
4.2
4.0
Propagation Delay, Average;
CLK_IN to any SDRAM pin *
t
PHL(max)
Measured on the rising edge at 1.5V;
C
L
= 30pF
ns
Clock Outputs (SDRAM_0:17 3.3V Type 4 Clock Buffer)
66.67
100
66.67
100
66.67
100
66.67
100
66.67
100
66.67
100
66.67
100
1.0
0.9
1.2
1.0
1.0
0.7
1.1
0.8
6.5
3.8
6.5
3.8
6.5
4.6
t
r(min)
V
O
= 0.4V to 2.4V; C
L
= 20pF
Rise Time *
t
r(max)
V
O
= 0.4V to 2.4V; C
L
= 30pF
ns
t
f(min)
V
O
= 2.4V to 0.4V; C
L
= 20pF
Fall Time *
t
f(max)
V
O
= 2.4V to 0.4V; C
L
= 30pF
ns
t
KH(min)
V
O
= 2.4V; C
L
= 20pF
Clock High Time *
t
KH(max)
V
O
= 2.4V; C
L
= 30pF
ns
t
KL(min)
V
O
= 0.4V; C
L
= 20pF
66.67
100
66.67
100
66.67
100
6.3
4.5
49
45
50
46
4.7
4.6
6.3
7.9
Clock Low Time *
t
KL(max)
V
O
= 0.4V; C
L
= 30pF
ns
From rising edge to rising edge at
1.5V; C
L
= 20pF
Duty Cycle *
From rising edge to rising edge at
1.5V; C
L
= 30pF
%
t
PZL
t
PZH
t
PLZ
t
PHZ
Tristate Enable Delay *
Output tristated to output active; C
L
= 20pF
ns
Tristate Disable Delay *
Output active to output tristated; C
L
= 20pF
ns
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