IDT54FCT240 查看數據表（PDF） - Integrated Device Technology
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IDT54FCT240 Datasheet PDF : 8 Pages
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IDT54/74FCT240/241/244/540/541/A/C
FAST CMOS OCTAL BUFFER/LINE DRIVER
MILITARY AND COMMERCIAL TEMPERATURE RANGES
SWITCHING CHARACTERISTICS OVER OPERATING RANGE FOR FCT240(1,2)
Symbol
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
Parameter
Propagation Delay
DN to ON
Output Enable Time
Output Disable Time
Condition
CL = 50pF
RL = 500Ω
54/74FCT240
54/74FCT240A
54/74FCT240C
Com'l.
Mil.
Com'l.
Mil.
Com'l.
Mil.
Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Unit
1.5 8.0 1.5 9.0 1.5 4.8 1.5 5.1 1.5 4.3 1.5 4.7 ns
1.5 10.0 1.5 10.5 1.5 6.2 1.5 6.5 1.5 5.8 1.5 6.5 ns
1.5 9.5 1.5 10.0 1.5 5.6 1.5 5.9 1.5 5.2 1.5 5.7 ns
2606 tbl 07
SWITCHING CHARACTERISTICS OVER OPERATING RANGE FOR FCT241 AND FCT244(1,2)
SWITCHING CHARACTERISTICS OVER OPERATING RANGE FOR FCT241 AND FCT244(1,2)
54/74FCT241/244
54/74FCT241A/244A 54/74FCT241C/244C
Symbol
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
Parameter
Propagation Delay
DN to ON
Output Enable Time
Output Disable Time
Condition
CL = 50pF
RL = 500Ω
Com'l.
Mil.
Com'l.
Mil.
Com'l.
Mil.
Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Unit
1.5 6.5 1.5 7.0 1.5 4.8 1.5 5.1 1.5 4.1 1.5 4.6 ns
1.5 8.0 1.5 8.5 1.5 6.2 1.5 6.5 1.5 5.8 1.5 6.5 ns
1.5 7.0 1.5 7.5 1.5 5.6 1.5 5.9 1.5 5.2 1.5 5.7 ns
2606 tbl 08
SWITCHING CHARACTERISTICS OVER OPERATING RANGE FOR FCT540 AND FCT541(1,2)
54/74FCT540/541
54/74FCT540A/541A 54/74FCT540C/541C
Com'l.
Mil.
Com'l.
Mil.
Com'l.
Mil.
Symbol
Parameter
Condition
Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Unit
Propagation Delay
tPLH
tPHL
DN to ON
IDT54/74FCT540
CL = 50pF
RL = 500Ω
1.5 8.5 1.5 9.5 1.5 4.8 1.5 5.1 1.5 4.3 1.5 4.7 ns
tPLH
tPHL
Propagation Delay
DN to ON
IDT54/74FCT541
1.5 8.0 1.5 9.0 1.5 4.8 1.5 5.1 1.5 4.1 1.5 4.6 ns
tPZH
tPZL
Output Enable Time
1.5 10.0 1.5 10.5 1.5 6.2 1.5 6.5 1.5 5.8 1.5 6.5 ns
tPHZ
tPLZ
Output Disable Time
1.5 9.5 1.5 10.0 1.5 5.6 1.5 5.9 1.5 5.2 1.5 5.7 ns
NOTES:
2606 tbl 09
1. See test circuit and waveforms.
2. Minimum limits are guaranteed but not tested on Propagation Delays.
7.8
6
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