HD74HCT125 Datasheet, PDF(5/9 Page) Hitachi Semiconductor – Quad. Bus Buffer Gates (with 3-state outputs)

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HD74HCT125 Datasheet, PDF (5/9 Pages) Hitachi Semiconductor – Quad. Bus Buffer Gates (with 3-state outputs)

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HD74HCT125, HD74HCT126

Waveforms

â¢ HD74HCT125

â¢ Waveform â 1

Input A

10 %

90 %

1.3 V

tPLH

90 %

1.3 V

10 %

tPHL

VCC

Output Y

1.3 V

VOH

VOL

â¢ Waveform â 2

Input C

90 %

1.3 V

90 %

VCC

1.3 V

10 %

tZL

tLZ

Waveform - A

1.3 V

tZH

10 %

tHZ

VOH

VOL

Waveform - B

1.3 V

90 %

VOH

VOL

Notes : 1. tr â¤ 6 ns, tf â¤ 6 ns

2. Input waveform : PRR â¤ 1 MHz, duty cycle 50%

3. Waveformâ A is for an output with internal conditions such that the

output is low except when disabled by the output control.

4. Waveformâ B is for an output with internal conditions such that the

output is high except when disabled by the output control.

Rev.2.00 Mar 30, 2006 page 5 of 8

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