IDT54157ATD Ver la hoja de datos (PDF) - Integrated Device Technology
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IDT54157ATD Datasheet PDF : 9 Pages
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IDT54/74FCT240/244T/AT/CT/DT - 2240/2244T/AT/CT, IDT54/74FCT540/541/2541T/AT/CT
FAST CMOS OCTAL BUFFER/LINE DRIVER
MILITARY AND COMMERCIAL TEMPERATURE RANGES
SWITCHING CHARACTERISTICS OVER OPERATING RANGE FOR FCT240/2240T
FCT240T
FCT2240T
FCT240AT
FCT2240AT
Symbol
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
Parameter
Propagation Delay
DN to ON
Output Enable Time
Output Disable Time
Condition(1)
CL = 50pF
RL = 500Ω
Com'l.
Min.(2) Max.
1.5 8.0
Mil.
Min.(2) Max.
1.5 9.0
Com'l.
Min.(2) Max.
1.5 4.8
Mil.
Min.(2) Max.
1.5 5.1
Unit
ns
1.5 10.0 1.5 10.5 1.5 6.2 1.5 6.5 ns
1.5 9.5 1.5 10.0 1.5 5.6 1.5 5.9 ns
2565 tbl 09
Symbol
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
Parameter
Propagation Delay
DN to ON
Output Enable Time
Output Disable Time
Condition(1)
CL = 50pF
RL = 500Ω
FCT240CT
FCT2240CT
Com'l.
Min.(2) Max.
1.5 4.3
Mil.
Min.(2) Max.
1.5 4.7
FCT240DT
Com'l.
Min.(2) Max.
1.5 3.6
Mil.
Min.(2) Max.
—
—
Unit
ns
1.5 5.8 1.5 6.5 1.5 4.8
—
— ns
1.5 5.2 1.5 5.7 1.5 4.0
—
— ns
2565 tbl 10
SWITCHING CHARACTERISTICS OVER OPERATING RANGE FOR FCT244/2244T
FCT244T
FCT2244T
FCT244AT
FCT2244AT
Symbol
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
Parameter
Propagation Delay
DN to ON
Output Enable Time
Output Disable Time
Condition(1)
CL = 50pF
RL = 500Ω
Com'l.
Min.(2) Max.
1.5 6.5
Mil.
Min.(2) Max.
1.5 7.0
Com'l.
Min.(2) Max.
1.5 4.8
Mil.
Min.(2) Max.
1.5 5.1
Unit
ns
1.5 8.0 1.5 8.5 1.5 6.2 1.5 6.5 ns
1.5 7.0 1.5 7.5 1.5 5.6 1.5 5.9 ns
2565 tbl 11
FCT244CT
FCT2244CT
Symbol
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
Parameter
Propagation Delay
DN to ON
Output Enable Time
Output Disable Time
Condition(1)
CL = 50pF
RL = 500Ω
Com'l.
Min.(2) Max.
1.5 4.1
Mil.
Min.(2) Max.
1.5 4.6
1.5 5.8 1.5 6.5
1.5 5.2 1.5 5.7
NOTES:
1. See test circuit and waveforms.
2. Minimum limits are guaranteed but not tested on Propagation Delays.
FCT244DT
Com'l.
Min.(2) Max.
1.5 3.6
Mil.
Min.(2) Max.
—
—
Unit
ns
1.5 4.8
—
— ns
1.5 4.0
—
— ns
2565 tbl 12
6.8
6
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