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HD74LS122 Datasheet(PDF) 6 Page - Renesas Technology Corp

Part # HD74LS122
Description  Retriggerable Monostable Multivibrator (with Clear)
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

HD74LS122 Datasheet(HTML) 6 Page - Renesas Technology Corp

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HD74LS122
Rev.2.00, Feb.18.2005, page 6 of 7
Testing Method
Test Circuit
4.5V
Rext
H2
Cext
Load circuit 1
Output Q
VCC
RL
CL
Same as Load Circuit 1.
Output
Q
A1 Input
P.G.
Zout = 50
B1 Input
P.G.
Zout = 50
CLR Input
P.G.
Zout = 50
VCC
Q
Q
Rext
/Cext
Cext
CLR
Notes:
1.
CL includes probe and jig capacitance.
2.
All diodes are 1S2074(H).
Waveform
1.3V
tw (in)
≥ 40ns
tw (in)
≥ 40ns
tw (in)
≥ 40ns
tw (in)
≥ 40ns
tPLH
tPLH
tPHL
tPHL
tPLH
tw (out)
tw (out)
tPHL
tw (CLR)
≥ 40ns
1.3V
1.3V
1.3V
1.3V
1.3V
1.3V
1.3V
1.3V
1.3V
1.3V
1.3V
1.3V
1.3V
1.3V
1.3V
A
3V
0V
B
3V
0V
Clear
3V
0V
Q
VOH
VOL
Q
VOH
VOL
Note:
Input pulse; tTLH
≤ 15 ns, t
THL
≤ 6 ns.


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