HD74LV245ATELL(2010) データシートの表示（PDF） - Renesas Electronics

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HD74LV245ATELL
(Rev.:2010)

Octal Bus Transceivers with 3-state Outputs

Renesas Electronics 

HD74LV245A

• Waveform − 1

tr

tf

90%

90%

VCC

Input

50% VCC

50% VCC

10%

10%

0V

tPLH

tPHL

In phase output

VOH

50% VCC

50% VCC

VOL

• Wareform − 2

tf

tr

90%

90%

VCC

OE

50% VCC

50% VCC

10%

10%

0V

tZL

tLZ

Waveform − A

Waveform − B

50% VCC

tZH

50% VCC

VOL + 0.3 V

tHZ

VOH − 0.3 V

VCC

VOL

VOH

0V

Notes: 1. Input waveform: PRR ≤ 1 MHz, Zo = 50 Ω, tr ≤ 3 ns, tf ≤ 3 ns

2. Waveform−A is for an output with internal conditions such that the output is low except when disabled

by the output control.

3. Waveform−B is for an output with internal conditions such that the output is high except when disabled

by the output control.

4. The output are measured one at a time with one transition per measurement.

Rev.3.00 Jun. 24, 2004 page 7 of 9

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