DM74AS640 데이터 시트보기 (PDF) - Fairchild Semiconductor

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DM74AS640

3-STATE Octal Bus Transceiver

Fairchild Semiconductor 

Switching Characteristics

over recommended operating free air temperature range (unless otherwise noted)

From

To

Symbol

Parameter

(Input)

(Output)

tPLH

Propagation Delay Time

LOW-to-HIGH Level Output

tPHL

Propagation Delay Time

HIGH-to-LOW Level Output

tPZH

Output Enable Time to

HIGH Level Output

tPZL

Output Enable Time to

LOW Level Output

tPHZ

Output Disable Time from

HIGH Level Output

tPLZ

Output Disable Time from

LOW Level Output

A or B

A or B

G

G

G

G

B or A

B or A

A or B

A or B

A or B

A or B

VCC = Min to Max,

CL = 50 pF, R1 = R2 = 500Ω

Min

Max

2

7

2

6

2

8

2

10

2

8

2

13

Units

ns

ns

ns

ns

ns

ns

3

www.fairchildsemi.com

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