DM74LS163ACW 데이터 시트보기 (PDF) - Fairchild Semiconductor

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DM74LS163ACW

Synchronous 4-Bit Binary Counters

Fairchild Semiconductor 

DM74LS163A Switching Characteristics

at VCC = 5V and TA = 25°C

From (Input)

RL = 2 kΩ

Symbol

Parameter

To (Output)

CL = 15 pF

CL = 50 pF

Min

Max

Min

Max

fMAX

tPLH

Maximum Clock Frequency

Propagation Delay Time

LOW-to-HIGH Level Output

Clock to

Ripple Carry

25

20

25

30

tPHL

Propagation Delay Time

HIGH-to-LOW Level Output

Clock to

Ripple Carry

30

38

tPLH

Propagation Delay Time

LOW-to-HIGH Level Output

Clock to Any Q

(Load HIGH)

22

27

tPHL

Propagation Delay Time

HIGH-to-LOW Level Output

Clock to Any Q

(Load HIGH)

27

38

tPLH

Propagation Delay Time

LOW-to-HIGH Level Output

Clock to Any Q

(Load LOW)

24

30

tPHL

Propagation Delay Time

HIGH-to-LOW Level Output

Clock to Any Q

(Load LOW)

27

38

tPLH

Propagation Delay Time

LOW-to-HIGH Level Output

Enable T to

Ripple Carry

14

27

tPHL

Propagation Delay Time

HIGH-to-LOW Level Output

Enable T to

Ripple Carry

15

27

tPHL

Propagation Delay Time

HIGH-to-LOW Level Output

Clear to Any Q

(Note 14)

28

45

Note 14: The propagation delay clear to output is measured from the clock input transition.

Units

MHz

ns

ns

ns

ns

ns

ns

ns

ns

ns

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