74VHCT245AM 데이터 시트보기 (PDF) - ON Semiconductor

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74VHCT245AM

Octal Buffer/Line Driver with 3-STATE Outputs

ON Semiconductor 

AC Electrical Characteristics

Symbol

tPLH, tPHL

Parameter

Propagation Delay

Time

tPZL, tPZH 3-STATE Output

Enable Time

tPLZ, tPHZ 3-STATE Output

Disable Time

tOSLH, tOSHL Output to Output

Skew

CIN

COUT

CPD

Input Capacitance

Output Capacitance

Power Dissipation

Capacitance

VCC (V)

5.0 ± 0.5

5.0 ± 0.5

5.0 ± 0.5

5.0 ± 0.5

Conditions

RL = 1kΩ

RL = 1kΩ

CL = 15pF

CL = 50pF

CL = 15pF

CL = 50pF

CL = 50pF

(7)

VCC = Open

VCC = 5.0V

(8)

TA = 25°C

Min. Typ. Max.

4.9 7.7

5.4 8.7

9.4 13.8

9.9 14.8

10.1 15.4

1.0

4

10

13

16

TA = –40°C

to +85°C

Min. Max. Units

1.0 8.5 ns

1.0 9.5

1.0 15.0 ns

1.0 16.0

1.0 16.5 ns

1.0 ns

10 pF

pF

pF

Notes:

7. Parameter guaranteed by design. tOSLH = |tPLH max – tPLH min|; tOSHL = |tPHL max – tPHL min|

8. 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.

©1997 Fairchild Semiconductor Corporation

74VHCT245A Rev. 1.3

5

www.fairchildsemi.com

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