74VHCT240 Просмотр технического описания (PDF) - Fairchild Semiconductor

Номер в каталоге

Компоненты Описание

Список матч

74VHCT240

Octal Buffer/Line Driver with 3-STATE Outputs

Fairchild Semiconductor 

AC Electrical Characteristics

Symbol

Parameter

VCC

TA = 25°C

TA = −40°C to +85°C

Units

(V)

Min

Typ

Max

Min

Max

Conditions

tPLH

tPHL

tPZL

tPZH

tPLZ

tPHZ

tOSLH

tOSHL

CIN

Propagation Delay

Time

3-STATE Output

Enable Time

3-STATE Output

Disable Time

Output to

Output Skew

Input

Capacitance

5.0 ± 0.5

5.0 ± 0.5

5.0 ± 0.5

5.0 ± 0.5

5.6

7.8

1.0

9.0

ns

6.1

8.8

1.0

10.0

CL = 15 pF

CL = 50 pF

6.5

10.4

1.0

12.5

ns RL = 1 kΩ CL = 15 pF

7.3

11.4

1.0

13.5

CL = 50 pF

7.0

11.4

1.0

13.0

ns RL = 1 kΩ CL = 50 pF

(Note 8)

1.0

1.0

ns

4

10

10

pF VCC = Open

COUT

Output

9

Capacitance

pF VCC = 5.0V

CPD

Power Dissipation

19

Capacitance

(Note 9)

pF

Note 8: Parameter guaranteed by design. tOSLH = |tPLH max − tPLH min|; tOSHL = |tPHL max − tPHL min|

Note 9: CPD is defined as the value of the internal equivalent capacitance which is calculated from the operating current consumption without load. Average

operating current can be obtained by the equation: ICC (opr.) = CPD * VCC * fIN + ICC/8 (per F/F). The total CPD when n pcs. of the Octal D Flip-Flop operates

can be calculated by the equation: CPD (total) = 20 + 12n.

www.fairchildsemi.com

4

Share Link: