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CY74FCT646TQSOP Datasheet(PDF) 5 Page - Texas Instruments

Part # CY74FCT646TQSOP
Description  8-Bit Registered Transceiver
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

CY74FCT646TQSOP Datasheet(HTML) 5 Page - Texas Instruments

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CY54/74FCT646T
5
Switching Characteristics Over the Operating Range[14]
Parameter
Description
FCT646T
FCT646AT
Unit
Fig.
No.[15]
Military
Commercial
Commercial
Min.
Max.
Min.
Max.
Min.
Max.
tPLH
tPHL
Propagation Delay Bus to Bus
2.0
11.0
1.5
9.0
1.5
6.3
ns
1, 3
tPZH
tPZL
Output Enable Time
Enable to Bus and DIR to An or Bn
2.0
15.0
1.5
14.0
1.5
9.8
ns
1, 7, 8
tPHZ
tPLZ
Output Disable Time
G to Bus and DIR to Bus
2.0
11.0
1.5
9.0
1.5
6.3
ns
1, 7, 8
tPLH
tPHL
Propagation Delay
Clock to Bus
2.0
10.0
1.5
9.0
1.5
6.3
ns
1, 5
tPLH
tPHL
Propagation Delay
SBA or SAB to A or B
2.0
12.0
1.5
11.0
1.5
7.7
ns
1, 5
tS
Set-Up Time HIGH or LOW,
Bus to Clock
4.5
4.0
2.0
ns
4
tH
Hold Time HIGH or LOW,
Bus to Clock
2.0
2.0
1.5
ns
4
tW
Pulse Width, HIGH or LOW [8]
6.0
6.0
5.0
ns
5
Parameter
Description
FCT646CT
Unit
Fig.
No.[15]
Military
Commercial
Min.
Max.
Min.
Max.
tPLH
tPHL
Propagation Delay Bus to Bus
1.5
6.0
1.5
5.4
ns
1, 3
tPZH
tPZL
Output Enable Time Enable to Bus and DIR to An or Bn
1.5
8.9
1.5
7.8
ns
1, 7, 8
tPHZ
tPLZ
Output Disable Time G to Bus and DIR toBus
1.5
7.7
1.5
6.3
ns
1, 7, 8
tPLH
tPHL
Propagation Delay Clock to Bus
1.5
6.3
1.5
5.7
ns
1, 5
tPLH
tPHL
Propagation Delay SBA or SAB to A or B
1.5
7.0
1.5
6.2
ns
1, 5
tS
Set-Up Time, HIGH or LOW, Bus to Clock
2.0
2.0
ns
4
tH
Hold Time, HIGH or LOW, Bus to Clock
1.5
1.5
ns
4
tW
Pulse Width,[8] HIGH or LOW
5.0
5.0
ns
5
Notes:
14. Minimum limits are specified but not tested on Propagation Delays.
15. See “Parameter Measurement Information” in the General Information Section.


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