74ACT16646 datasheet(4/6 Pages) FAIRCHILD

Part #	74ACT16646

Description	16-Bit Transceiver/Register with 3-STATE Outputs

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Manufacturer	FAIRCHILD [Fairchild Semiconductor]

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AC Electrical Characteristics

Note 5: Voltage Range 5.0 is 5.0V

± 0.5V.

AC Operating Requirements

Note 6: Voltage Range 5.0 is 5.0V

± 0.5V.

Capacitance

VCC

TA = +25°CTA = −40°C to +85°C

Symbol

Parameter

(V)

CL = 50 pF

Units

(Note 5)

Min

Typ

Max

Min

Max

tPHL

Propagation Delay

5.0

4.6

6.9

9.4

3.6

10.1

ns

tPLH

Clock to Bus

4.3

6.5

8.9

3.3

9.7

tPHL

Propagation Delay

5.0

4.0

6.2

8.5

2.9

9.2

ns

tPLH

Bus to Bus

4.1

6.4

8.6

3.2

9.3

tPHL

Propagation Delay

5.0

4.0

6.4

8.9

3.1

9.6

ns

tPLH

Select to Bus

4.2

6.7

9.5

3.2

10.4

(w/An or Bn HIGH or LOW)

tPZL

Enable Time

5.0

5.3

7.8

10.5

3.8

11.4

ns

tPZH

G to An/Bn

4.6

6.9

9.4

3.3

10.2

tPLZ

Disable Time

5.0

3.0

5.5

8.1

2.3

8.6

ns

tPHZ

G to An/Bn

3.4

5.7

8.3

2.6

8.6

tPZL

Enable Time

5.0

5.1

8.2

11.8

4.3

12.7

ns

tPZH

DIR to An/Bn

4.6

7.5

10.8

3.7

11.7

tPLZ

Disable Time

5.0

2.9

5.8

9.2

2.0

9.8

ns

tPHZ

DIR to An/Bn

3.4

6.1

9.2

2.5

9.7

VCC

TA = +25°CTA = −40°C to +85°C

Symbol

Parameter

(V)

CL = 50 pF

Units

(Note 6)

Guaranteed Minimum

tS

Setup Time, H or L

5.0

3.0

ns

Bus to Clock

tH

Hold Time, H or L

5.0

1.5

ns

Bus to Clock

tW

Clock Pulse Width

5.0

4.0

ns

H or L

Symbol

Parameter

Typ

Units

Conditions

CIN

Input Capacitance

4.5

pF

VCC = 5.0V

CPD

Power Dissipation Capacitance

95

pF

VCC = 5.0V

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