LS164 데이터 시트보기 (PDF) - System Logic Semiconductor

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LS164

8-Bit Serial-Input/Parallel-Output Shift Register

System Logic Semiconductor 

SL74LS164

Note 2: ICC is measured with outputs open, serial inputs grouned, the clock input at 2.4 V, and a momentary

ground, then 4.5 V applied.

AC ELECTRICAL CHARACTERISTICS (TA=25°C, VCC = 5.0 V, CL = 15 pF, RL = 2 kΩ, tr =15

ns, tf = 6.0 ns)

Symbol

Parameter

Min

Max

Unit

tPLH Propagation Delay Time, Clock to Q

27

ns

tPHL Propagation Delay Time, Clock to Q

32

ns

tPHL Propagation Delay Time, Reset to Q

36

ns

tsu

Setup Time, A1 or A2 to Clock

15

ns

th

Hold Time, Clock to A1 or A2

5

ns

tw

Pulse Width, Clock

20

ns

tw

Pulse Width, Reset

20

ns

Figure 1. Switching Waveforms

Figure 2. Switching Waveforms

Figure 3. Switching Waveform

NOTES A. CL includes probe and jig capacitance.

B. All diodes are 1N916 or 1N3064.

Figure 4. Test Circuit

SLS

System Logic

Semiconductor

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