參數(shù)資料
型號(hào)： IDT74FCT245DTSOB
廠商： Integrated Device Technology, Inc.
英文描述： FAST CMOS OCTAL BIDIRECTIONAL TRANSCEIVERS
中文描述： 快速CMOS八路雙向收發(fā)器
文件頁(yè)數(shù)： 6/8頁(yè)
文件大小： 157K
代理商： IDT74FCT245DTSOB
6.9
6
IDT54/74FCT245T/AT/CT/DT - 2245T/AT/CT, IDT54/74FCT640T/AT/CT, IDT54/74FCT645T/AT/CT/DT
FAST CMOS OCTAL BIDIRECTIONAL TRANSCEIVERS
MILITARY AND COMMERCIAL TEMPERATURE RANGES
SWITCHING CHARACTERISTICS OVER OPERATING RANGE
FCT645T
FCT645AT
Com'l.
Mil.
Com'l.
Mil.
Symbol
t
PLH
t
PHL
t
PZH
t
PZL
t
PHZ
t
PLZ
t
PZH
t
PZL
t
PHZ
t
PLZ
Parameter
Conditions
(1)
C
L
= 50 pF
R
L
= 500
Min.
(2)
1.5
Max.
9.5
Min
.
(2)
1.5
Max.
11.0
Min
.
(2)
1.5
Max.
4.6
Min.
(2)
1.5
Max.
4.9
Unit
ns
Propagation Delay
A to B, B to A
Output Enable Time
OE
to A or B
Output Disable Time
OE
to A or B
Output Enable Time
T/
R
to A or B
(3)
Output Disable Time
T/
R
to A or B
(3)
1.5
11.0
1.5
12.0
1.5
6.2
1.5
6.5
ns
1.5
12.0
1.5
13.0
1.5
5.0
1.5
6.0
ns
1.5
11.0
1.5
12.0
1.5
6.2
1.5
6.5
ns
1.5
12.0
1.5
13.0
1.5
5.0
1.5
6.0
ns
2534 tbl 12
FCT645CT
FCT645DT
Com'l.
Mil.
Com'l.
Mil.
Symbol
t
PLH
t
PHL
t
PZH
t
PZL
t
PHZ
t
PLZ
t
PZH
t
PZL
t
PHZ
t
PLZ
NOTES:
1. See test circuit and waveforms.
2. Minimum limits are guaranteed but not tested on Propagation Delays.
3. This parameter is guaranteed but not tested.
Parameter
Conditions
(1)
C
L
= 50 pF
R
L
= 500
Min.
(2)
1.5
Max.
4.1
Min
.
(2)
1.5
Max.
4.5
Min
.
(2)
1.5
Max.
3.8
Min.
(2)
—
Max.
—
Unit
ns
Propagation Delay
A to B, B to A
Output Enable Time
OE
to A or B
Output Disable Time
OE
to A or B
Output Enable Time
T/
R
to A or B
(3)
Output Disable Time
T/
R
to A or B
(3)
1.5
5.8
1.5
6.2
1.5
5.0
—
—
ns
1.5
4.8
1.5
5.2
1.5
4.3
—
—
ns
1.5
5.8
1.5
6.2
1.5
5.0
—
—
ns
1.5
4.8
1.5
5.2
1.5
4.3
—
—
ns
2534 tbl 13
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