HD74LV123A 查看數據表（PDF） - Hitachi -> Renesas Electronics

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HD74LV123A

Dual Retriggerable Monostable Multivibrators

Hitachi -> Renesas Electronics 

HD74LV123A

• Waveform – 2

tr

tf

tr

Input A

Input B

10%

90%

50%

90%

50%

10%

tw (H)

tf

tr

tw (L)

90%

50%

10%

tf

90%

50%

10% 10%

tw (L)

90% 90%

50%

50%

tw (H)

10%

Output Q

Output Q

50% VCC

50% VCC

50% VCC

tw (out)

50% VCC

• Waveform – 3

tf

tr

tf

Input A

90%

50%

10%

tr

90%

10%

trr

tf

90%

50%

10%

tr

Input B

10%

90%

50%

90%

10%

90%

50%

10%

Output Q

Output Q

50% VCC

50% VCC

50% VCC

tw (out) + trr

50% VCC

Note: 1. Input waveform: PRR ≤ 1 MHz, Zo = 50 Ω, t r ≤ 3 ns, tf ≤ 3 ns

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

VCC

GND

VCC

GND

VOH

VOL

VOH

VOL

VCC

GND

VCC

GND

VOH

VOL

VOH

VOL

13

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