HD74ALVCH162825 Просмотр технического описания (PDF) - Hitachi -> Renesas Electronics

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HD74ALVCH162825

18-bit Buffers / Drivers with 3-state Outputs

Hitachi -> Renesas Electronics 

Waveforms – 1

Input

Output

tr

10 %

90 %

Vref

tPLH

HD74ALVCH162825

tf

90 %

Vref

10 %

tPHL

Vref

Vref

VIH

GND

VOH

VOL

Waveforms – 2

Output

Control

tf

90 %

Vref

10 %

tZL

Waveform - A

Vref

tZH

Waveform - B

Vref

tr

10 %

90 %

Vref

tLZ

tHZ

VOL + 0.3 V

VOH – 0.3 V

VIH

GND

≈VOH1

VOL

VOH

≈VOL1

Notes:

TEST

VIH

Vref

VOH1

VOL1

Vcc=2.5±0.2V

2.3 V

1.2 V

2.3 V

GND

Vcc=2.7V,

3.3±0.3V

2.7 V

1.5 V

3.0 V

GND

1. All input pulses are supplied by generators having the following characteristics: PRR ≤ 10

MHz, Zo = 50 Ω, tr ≤ 2.5 ns, tf ≤ 2.5 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.

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