74LVC245AQ20-13 查看數據表（PDF） - Diodes Incorporated.

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74LVC245AQ20-13

OCTAL BUS TRANSCEIVER WITH 3 STATE OUTPUTS

Diodes Incorporated. 

Parameter Measurement Information

74LVC245A

TEST

tPLH/tPHL

tPLZ/tPZL

tPHZ/tPZH

S1

Open

VLOAD

GND

VCC

1.8V±0.15V

2.5V±0.2V

2.7V

3.3V±0.3V

Inputs

VI

tr/tf

VCC

≤2ns

VCC

≤2ns

2.7V

≤2.5ns

2.7V

≤2.5ns

VM

VCC/2

VCC/2

1.5V

1.5V

VLOAD

2 x VCC

2 x VCC

6V

6V

CL

30pF

30pF

50pF

50pF

RL

1KΩ

500Ω

500Ω

500Ω

V∆

0.15V

0.15V

0.3V

0.3V

Voltage Waveform Pulse Duration

Voltage Waveform Enable and Disable Times

Low and High Level Enabling

Voltage Waveform Propagation Delay Times

Inverting and Non Inverting Outputs

Notes:

A. Includes test lead and test apparatus capacitance.

B. All pulses are supplied at pulse repetition rate ≤ 10 MHz.

C. Inputs are measured separately one transition per measurement.

D. tPLZ and tPHZ are the same as tdis.

E. tPZL and tPZH are the same as tEN0

F. tPLH and tPHL are the same as tPD.

Figure 1 Load Circuit and Voltage Waveforms

74LVC245A

Document number: DS35890 Rev. 1 - 2

6 of 10

www.diodes.com

August 2014

© Diodes Incorporated

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