HD74ALVC16834 查看數據表（PDF） - Hitachi -> Renesas Electronics

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HD74ALVC16834

18-bit Universal Bus Driver with 3-state Outputs and Inverted Latch Enable

Hitachi -> Renesas Electronics 

HD74ALVC16834

Waveforms – 3

Output

Control

tf

90 %

Vref

10 %

tZL

Waveform - A

Vref

tZH

Waveform - B

Vref

tr

10 %

90 %

Vref

tLZ

Vref1

tHZ

Vref2

VIH

GND

≈VOH1

VOL

VOH

≈VOL1

Notes:

TEST

VIH

Vref

Vref1

Vref2

VOH1

VOL1

Vcc=2.5±0.2V

VCC

Vcc=2.7V,

3.3±0.3V

2.7 V

1/2 VCC

1.5 V

VOL +0.15 V VOL +0.3 V

VOH–0.15 V VOH–0.3 V

VCC

3.0 V

GND

GND

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

PRR ≤ 10 MHz, Zo = 50 Ω, tr ≤ 2.0 ns, tf ≤ 2.0 ns. (VCC = 2.5±0.2 V)

PRR ≤ 10 MHz, Zo = 50 Ω, tr ≤ 2.5 ns, tf ≤ 2.5 ns. (VCC = 2.7 V, 3.3±0.3 V)

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 outputs are measured one at a time with one transition per measurement.

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