IDT54FCT2245ATQB データシートの表示（PDF） - Integrated Device Technology
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IDT54FCT2245ATQB Datasheet PDF : 8 Pages
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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
Symbol
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
tPZH
tPZL
tPHZ
tPLZ
Parameter
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)
Conditions(1)
CL = 50 pF
RL = 500Ω
Com'l.
Min.(2) Max.
1.5 9.5
Mil.
Min.(2) Max.
1.5 11.0
Com'l.
Min.(2) Max.
1.5 4.6
Mil.
Min.(2) Max.
1.5 4.9
Unit
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
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.
Symbol
Parameter
Conditions(1) Min.(2) Max.
tPLH
Propagation Delay
tPHL
A to B, B to A
tPZH
Output Enable Time
tPZL
OE to A or B
CL = 50 pF
RL = 500Ω
1.5 4.1
1.5 5.8
tPHZ
Output Disable Time
tPLZ
OE to A or B
1.5 4.8
tPZH
Output Enable Time
tPZL
T/R to A or B(3)
1.5 5.8
tPHZ
Output Disable Time
tPLZ
T/R to A or B(3)
1.5 4.8
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.
Mil.
Min.(2) Max.
1.5 4.5
1.5 6.2
1.5 5.2
1.5 6.2
1.5 5.2
Com'l.
Min.(2) Max.
1.5 3.8
1.5 5.0
1.5 4.3
1.5 5.0
1.5 4.3
Mil.
Min.(2) Max.
—
—
Unit
ns
—
— ns
—
— ns
—
— ns
—
— ns
2534 tbl 13
6.9
6
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