HD74HC221P 查看數據表（PDF） - Renesas Electronics

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HD74HC221P

Dual Monostable Multivibrators (with Schmitt Trigger Input)

Renesas Electronics 

HD74HC221

• Waveform-2

Input A

Input B

Output Q

Output Q

tr

tf

tr

10 %

90 %

50 %

90 %

50 %

90 %

50 %

10 %

tw (H)

tf

tr

tw (L)

90 %

50 %

10 %

tf

10 %

tw (L)

90 % 90 %

50 %

50 %

tw (H)

tTLH

10 %

tTHL

10 %

90 %

50 %

90 %

50 %

tw (out)

10 %

VCC

GND

VCC

GND

VOH

VOL

90 %

50 %

10 %

50 %

10 %

90 % VOH

VOL

tTHL

tTLH

Notes : 1. Input pulse : PRR ≤ 1 MHz, Zo = 50 Ω, tr ≤ 6 ns, tf ≤ 6 ns

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

Rev.2.00 Jan 31, 2006 page 6 of 7

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