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CY74FCT191ATSOCT Datasheet(PDF) 4 Page - Texas Instruments

Part # CY74FCT191ATSOCT
Description  4-Bit Up/Down Binary Counter
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
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CY74FCT191ATSOCT Datasheet(HTML) 4 Page - Texas Instruments

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CY74FCT191T
4
Document #: 38-00286-B
Switching Characteristics Over the Operating Range
Parameter
Description
CY74FCT191AT
CY74FCT191CT
Unit
Fig. No.[13]
Min.[12]
Max.
Min.[12]
Max.
tPLH
tPHL
Propagation Delay
CP to Qn
1.5
7.8
1.5
6.2
ns
1, 5
tPLH
tPHL
Propagation Delay
CP to TC
1.5
11.8
1.5
9.4
ns
1, 5
tPLH
tPHL
Propagation Delay
CP to RC
1.5
8.5
1.5
6.8
ns
1, 5
tPLH
tPHL
Propagation Delay
CE to RC
1.5
7.2
1.5
6.0
ns
1, 5
tPLH
tPHL
Propagation Delay
U/D to RC
1.5
13.0
1.5
11.0
ns
1, 5
tPLH
tPHL
Propagation Delay
U/D to TC
1.5
7.2
1.5
6.1
ns
1, 5
tPLH
tPHL
Propagation Delay
Pn to Qn
1.5
9.1
1.5
7.7
ns
1, 5
tPLH
tPHL
Propagation Delay
PL to Qn
2.0
8.5
2.0
7.2
ns
1, 5
tSU
Set-Up Time
HIGH or LOW Pn to PL
4.0
3.5
ns
4
tH
Hold Time
HIGH or LOW Pn to PL
1.5
1.0
ns
4
tSU
Set-Up Time LOW
CE to CP
9.0
7.2
ns
4
tH
Hold Time
LOW CE to CP
0
0
ns
4
tSU
Set-Up Time
HIGH or LOW U/D to CP
10.0
8.0
ns
4
tH
Hold Time
HIGH or LOW U/D to CP
0
0
ns
4
tW
PL Pulse Width LOW
5.5
5.0
ns
5
tW
Clock Pulse Width[6]
HIGH or LOW
4.0
4.0
ns
5
tREM
Recovery Time
PL to CP
5.0
4.5
ns
6
Notes:
12. Minimum limits are specified but not tested on Propagation Delays.
13. See “Parameter Measurement Information” in the General Information section.
Ordering Information
Speed
(ns)
Ordering Code
Package
Name
Package Type
Operating
Range
6.2
CY74FCT191CTQCT
Q1
16-Lead (150-Mil) QSOP
Commercial
CY74FCT191CTSOC/SOCT
S1
16-Lead (300-Mil) Molded SOIC
7.8
CY74FCT191ATSOC/SOCT
S1
16-Lead (300-Mil) Molded SOIC
Commercial


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