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SN74LS122 View Datasheet(PDF) - ON Semiconductor

Part NameDescriptionManufacturer
SN74LS122 Retriggerable Monostable Multivibrators ON-Semiconductor
ON Semiconductor ON-Semiconductor
SN74LS122 Datasheet PDF : 12 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
SN74LS122, SN74LS123
SN74LS123 (TOP VIEW)
(SEE NOTES 1 THRU 4)
1ĂRext/ 1
2
VCC Cext Cext 1Q 2Q CLR 2B 2A
16 15 14 13 12 11 10 9
Q
CLR Q
CLR
Q
Q
1
2
3
4
56
78
1A 1B 1 1Q 2Q 2
2 GND
CLR
Cext Rext/
Cext
SN74LS122 (TOP VIEW)
(SEE NOTES 1 THRU 4)
Rext/
VCC Cext NC Cext NC Rint Q
14 13 12 11 10 9 8
Rint
Q
CLR Q
1234567
A1 A2 B1 B2 CLR Q GND
NC Ċ NO INTERNAL CONNECTION.
NOTES:
1. An external timing capacitor may be connected between Cext and Rext/Cext (positive).
2. To use the internal timing resistor of the LS122, connect Rint to VCC.
3. For improved pulse width accuracy connect an external resistor between Rext/Cext and VCC with Rint openĆcircuited.
4. To obtain variable pulse widths, connect an external variable resistance between Rint/Cext and VCC.
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