CY74FCT16646CTPVC datasheet(6/9 Pages) TI

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CY74FCT16646T

CY74FCT162646T

Switching Characteristics Over the Operating Range[15]

Parameter

Description

CY74FCT16646T

CY74FCT16646AT

CY74FCT162646AT

Unit

Min.

Max.

Min.

Max.

Fig. No.[16]

tPLH

tPHL

Propagation Delay

Bus to Bus

1.5

9.0

1.5

6.3

1, 2

tPZH

tPZL

Output Enable Time

DIR or OE to Bus

1.5

14.0

1.5

9.8

1, 7, 8

tPHZ

tPLZ

Output Disable Time

DIR or OE to Bus

1.5

9.0

1.5

6.3

1, 7, 8

tPLH

tPHL

Propagation Delay

Clock to Bus

1.5

9.0

1.5

6.3

1, 5

tPLH

tPHL

Propagation Delay

SBA or SAB to Bus

1.5

11.0

1.5

7.7

1,5

tSU

Set-Up Time HIGH or

LOW Bus to Clock

2.0

—

2.0

—

Hold Time HIGH or

LOW Bus to Clock

1.5

—

1.5

—

Clock Pulse Width

HIGH or LOW

5.0

—

5.0

—

tSK(O)

Output Skew[17]

—

0.5

—

0.5

—

Parameter

Description

CY74FCT16646CT

CY74FCT162646CT

CY74FCT16646ET

CY74FCT162646ET

Unit

Min.

Max.

Min.

Max.

Fig. No.[16]

tPLH

tPHL

Propagation Delay

Bus to Bus

1.5

5.4

1.5

3.8

1, 2

tPZH

tPZL

Output Enable Time

DIR or OE to Bus

1.5

7.8

1.5

4.8

1, 7, 8

tPHZ

tPLZ

Output Disable Time

DIR or OE to Bus

1.5

6.3

1.5

4.0

1, 7, 8

tPLH

tPHL

Propagation Delay

Clock to Bus

1.5

5.7

1.5

3.8

1, 5

tPLH

tPHL

Propagation Delay

SBA or SAB to Bus

1.5

6.2

1.5

4.2

1,5

tSU

Set-Up Time HIGH or

LOW Bus to Clock

2.0

—

2.0

—

Hold Time HIGH or

LOW Bus to Clock

1.5

—

0.0

—

Clock Pulse Width

HIGH or LOW

5.0

—

3.0

—

tSK(O)

Output Skew[17]

—

0.5

—

0.5

—

Notes:

15. Minimum limits are speciﬁed but not tested on Propagation Delays.

16. See “Parameter Measurement Information” in the General Information section.

17. Skew any two outputs of the same package switching in the same direction. This parameter is ensured by design.

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