MC74VHC245 查看數據表（PDF） - Motorola => Freescale

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产品描述 (功能)

比赛名单

MC74VHC245

Octal Bus Transceiver

Motorola => Freescale 

MC74VHC245

A or B

tPLH

B or A

50%

50% VCC

Figure 1.

SWITCHING WAVEFORMS

VCC

GND

tPHL

DIR

OE

A or B

A or B

50% VCC

tPZL tPLZ

50% VCC

tPZH tPHZ

50% VCC

50%

50% VCC

VCC

GND

VCC

GND

HIGH

IMPEDANCE

VOL +0.3V

VOH –0.3V

HIGH

IMPEDANCE

Figure 2.

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 3.

* Includes all probe and jig capacitance

Figure 4.

MOTOROLA

4

VHC Data – Advanced CMOS Logic

DL203 — Rev 1

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