零件编号
SN74LS221
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ON Semiconductor
SN74LS221 数据手册 ( 数据表 ) - ON Semiconductor
ON Semiconductor
Dual Monostable Multivibrators with Schmitt-Trigger inputs
• SN74LS221 is a Dual Highly Stable One-Shot
• Overriding Clear Terminates Output Pulse
• Pin Out is Identical to SN74LS123
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