MC74VHCT573ADW 查看數據表（PDF） - Motorola => Freescale

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MC74VHCT573ADW

Octal D−Type Latch with 3−State Output

Motorola => Freescale 

MC74VHCT573A

SWITCHING WAVEFORMS

D

tPLH

Q

1.5V

1.5V

Figure 1.

3V

GND

tPHL

VOH

VOL

tw

3V

LE

1.5V

GND

tPLH

tPHL

VOH

Q

1.5V

VOL

Figure 2.

OE

1.5V

tPZL tPLZ

Q

1.5V

tPZH tPHZ

Q

1.5V

Figure 3.

3V

GND

HIGH

IMPEDANCE

VOL +0.3V

VOH –0.3V

HIGH

IMPEDANCE

VALID

3V

D

1.5V

GND

tsu

th

3V

LE

1.5V

GND

Figure 4.

DEVICE

UNDER

TEST

TEST POINT

OUTPUT

CL*

TEST CIRCUITS

DEVICE

UNDER

TEST

TEST POINT

OUTPUT

1 kΩ

CL*

CONNECT TO VCC WHEN

TESTING tPLZ AND tPZL.

CONNECT TO GND WHEN

TESTING tPHZ AND tPZH.

* Includes all probe and jig capacitance

Figure 5.

* Includes all probe and jig capacitance

Figure 6.

MOTOROLA

4

VHC Data – Advanced CMOS Logic

DL203 — Rev 1

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