MC54HC165A 데이터 시트보기 (PDF) - Motorola => Freescale

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MC54HC165A

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

Motorola => Freescale 

MC54/74HC165A

SWITCHING WAVEFORMS

tr

tf

CLOCK

OR CLOCK INHIBIT

90%

50%

10%

tw

QH OR QH

90%

50%

10%

1/fmax

tPLH

tPHL

tTLH

tTHL

VCC

GND

tw

SERIAL SHIFT/

50%

PARALLEL LOAD

tPLH

QH OR QH

50%

VCC

50%

GND

tPHL

Figure 1. Serial–Shift Mode

Figure 2. Parallel–Load Mode

tr

INPUT H

tPLH

QH OR QH

90%

50%

10%

90%

50%

10%

tTLH

tf

VCC

GND

tPHL

tTHL

Figure 3. Parallel–Load Mode

VALID

VCC

INPUTS A–H

50%

GND

SERIAL SHIFT/

PARALLEL LOAD

tsu

th

VCC

GND

ASYNCHRONOUS PARALLEL

LOAD

(LEVEL SENSITIVE)

Figure 4. Parallel–Load Mode

INPUT SA

CLOCK

OR CLOCK INHIBIT

VALID

SERIAL SHIFT/

VCC

VCC

PARALLEL LOAD

50%

50%

GND

GND

tsu

th

tsu

th

CLOCK

VCC

50%

VCC

OR CLOCK INHIBIT

50%

GND

GND

Figure 5. Serial–Shift Mode

Figure 6. Serial–Shift Mode

CLOCK INHIBIT

CLOCK 2 INHIBITED

VCC

50%

GND

tsu

trec

VCC

CLOCK

50%

GND

Figure 7. Serial–Shift, Clock–Inhibit Mode

DEVICE

UNDER

TEST

TEST POINT

OUTPUT

CL*

* Includes all probe and jig capacitance

Figure 8. Test Circuit

MOTOROLA

6

High–Speed CMOS Logic Data

DL129 — Rev 6

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