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IDT74FCT245 Datasheet(PDF) 5 Page - Integrated Device Technology

Part # IDT74FCT245
Description  FAST CMOS OCTAL BIDIRECTIONAL TRANSCEIVERS
PDF  7 Pages
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Manufacturer  IDT [Integrated Device Technology]
Direct Link  http://www.idt.com
Logo IDT - Integrated Device Technology

IDT74FCT245 Datasheet(HTML) 5 Page - Integrated Device Technology

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7.9
5
IDT54/74FCT245/A/C, IDT54/74FCT640/A/C, IDT54/74FCT645/A/C
FAST CMOS OCTAL BIDIRECTIONAL TRANSCEIVERS
MILITARY AND COMMERCIAL TEMPERATURE RANGES
tPLH
Propagation Delay
CL = 50 pF
1.5
7.0
1.5
7.5
1.5
4.6
1.5
4.9
1.5
4.1
1.5
4.5
ns
tPHL
A to B, B to A
RL = 500
Ω
tPZH
Output Enable Time
1.5
9.5
1.5
10.0
1.5
6.2
1.5
6.5
1.5
5.8
1.5
6.2
ns
tPZL
OE to A or B
tPHZ
Output Disable Time
1.5
7.5
1.5
10.0
1.5
5.0
1.5
6.0
1.5
4.8
1.5
5.2
ns
tPLZ
OE to A or B
tPZH
Output EnableTime
1.5
9.5
1.5
10.0
1.5
6.2
1.5
6.5
1.5
5.8
1.5
6.2
ns
tPZL
T/
R to A or B(3)
tPHZ
Output Disable Time
1.5
7.5
1.5
10.0
1.5
5.0
1.5
6.0
1.5
4.8
1.5
5.2
ns
tPLZ
T/
R to A or B(3)
2534 tbl 07
SWITCHING CHARACTERISTICS OVER OPERATING RANGE FOR FCT245/A/C
54/74FCT245
54/74FCT245A
54/74FCT245C
Com’l.
Mil.
Com’l.
Mil.
Com’l.
Mil.
Symbol
Parameter
Condition
(1) Min.(2) Max. Min.(2) Max. Min.(2) Max. Min.(2) Max. Min.(2) Max. Min.(2) Max. Unit
tPLH
Propagation Delay
CL = 50 pF
2.0
7.0
2.0
8.0
1.5
5.0
1.5
5.3
1.5
4.4
1.5
4.7
ns
tPHL
A to B, B to A
RL = 500
Ω
tPZH
Output Enable Time
2.0
13.0
2.0
16.0
1.5
6.2
1.5
6.5
1.5
5.8
1.5
6.2
ns
tPZL
OE to A or B
tPHZ
Output Disable Time
2.0
10.0
2.0
12.0
1.5
5.0
1.5
6.0
1.5
4.8
1.5
5.2
ns
tPLZ
OE to A or B
tPZH
Output Enable Time
2.0
13.0
2.0
16.0
1.5
6.2
1.5
6.5
1.5
5.8
1.5
6.2
ns
tPZL
T/
R to A or B(3)
tPHZ
Output Disable Time
2.0
10.0
2.0
12.0
1.5
5.0
1.5
6.0
1.5
4.8
1.5
5.2
ns
tPLZ
T/
R to A or B(3)
2534 tbl 08
SWITCHING CHARACTERISTICS OVER OPERATING RANGE FOR FCT640/A/C
54/74FCT640
54/74FCT640A
54/74FCT640C
Com’l.
Mil.
Com’l.
Mil.
Com’l.
Mil.
Symbol
Parameter
Condition
(1) Min.(2) Max. Min.(2) Max. Min.(2) Max. Min.(2) Max. Min.(2) Max. Min.(2) Max. Unit
SWITCHING CHARACTERISTICS OVER OPERATING RANGE FOR FCT645/A/C
54/74FCT645
54/74FCT645A
54/74FCT645C
Com’l.
Mil.
Com’l.
Mil.
Com’l.
Mil.
Symbol
Parameter
Condition
(1) Min.(2) Max. Min.(2) Max. Min.(2) Max. Min.(2) Max. Min.(2) Max. Min.(2) Max. Unit
tPLH
Propagation Delay
CL = 50 pF
1.5
9.5
1.5
11.0
1.5
4.6
1.5
4.9
1.5
4.1
1.5
4.5
ns
tPHL
A to B, B to A
RL = 500
Ω
tPZH
Output Enable Time
1.5
11.0
1.5
12.0
1.5
6.2
1.5
6.5
1.5
5.8
1.5
6.2
ns
tPZL
OE to A or B
tPHZ
Output Disable Time
1.5
12.0
1.5
13.0
1.5
5.0
1.5
6.0
1.5
4.8
1.5
5.2
ns
tPLZ
OE to A or B
tPZH
Output Enable Time
1.5
11.0
1.5
12.0
1.5
6.2
1.5
6.5
1.5
5.8
1.5
6.2
ns
tPZL
T/
R to A or B(3)
tPHZ
Output Disable Time
1.5
12.0
1.5
13.0
1.5
5.0
1.5
6.0
1.5
4.8
1.5
5.2
ns
tPLZ
T/
R to A or B(3)
NOTES:
2534 tbl 09
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.



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