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SN74LS221D Datasheet(PDF) 5 Page - Motorola, Inc

No. de pieza SN74LS221D
Descripción Electrónicos  DUAL MONOSTABLE MULTIVIBRATORS WITH SCHMITT-TRIGGER INPUTS
PDF  7 Pages
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Fabricante Electrónico  MOTOROLA [Motorola, Inc]
Página de inicio  http://www.freescale.com
Logo MOTOROLA - Motorola, Inc

SN74LS221D Datasheet(HTML) 5 Page - Motorola, Inc

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FAST AND LS TTL DATA
SN54/74LS221
AC WAVEFORMS
B INPUT
CLEAR
Q OUTPUT
Q OUTPUT
A INPUT IS LOW.
B INPUT
CLEAR
Q OUTPUT
A INPUT IS LOW.
B INPUT
CLEAR
Q OUTPUT
A INPUT IS LOW.
tW(in)
≥60 ns
tPLH
tPHL
tPLH
tPHL
1.3 V
3 V
0 V
3 V
0 V
VOH
VOL
VOH
VOL
≥60 ns
1.3 V
1.3 V
3 V
0 V
3 V
0 V
VOH
VOL
≥ 50 ns
≥ 0
ts
3 V
0 V
3 V
0 V
VOH
VOL
3 V
0 V
3 V
0 V
VOH
VOL
TRIGGERED
NOT TRIGGERED
≥50 ns
≥50 ns
B INPUT
CLEAR
Q OUTPUT
A INPUT IS LOW.
tW(out)
TRIGGER FROM B, THEN CLEAR — CONDITION 1
TRIGGER FROM B, THEN CLEAR — CONDITION 2
CLEAR OVERRIDING B, THEN TRIGGER FROM B
TRIGGERING FROM POSITIVE TRANSITION OF CLEAR
Figure 1



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