MC74HC158ADT 查看數據表（PDF） - Motorola => Freescale

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MC74HC158ADT

Quad 2-Input Data Selector/Multiplexer

Motorola => Freescale 

MC74HC158A

tr

Input Aor B

tPHL

Output Y

90%

50%

10%

90%

50%

10%

tTHL

Figure 1.

SWITCHING WAVEFORMS

tf

VCC

GND

tPLH

tTLH

tr

Select

tPHL

Output Y

90%

50%

10%

90%

50%

10%

tTHL

tf

VCC

GND

tPLH

tTLH

Figure 2. Y versus Select, Inverted

tr

Output Enable

tPLH

Output Y

90%

50%

10%

90%

50%

10%

tTLH

Figure 3.

tf

VCC

GND

tPHL

tTHL

DEVICE

UNDER

TEST

TEST

POINT

OUTPUT

CL*

*Includes all probe and jig capacitance

Figure 4. Test Circuit

MOTOROLA

3–4

High–Speed CMOS Logic Data

DL129 — Rev 6

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