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IC > ·ÎÁ÷ IC > 74LS(SMD) > 74LS244 (SO20)
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74LS244 (SO20)
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Octal 3-STATE Buffer/Line Driver/Line Receiver

General Description
These buffers/line drivers are designed to improve both the
performance and PC board density of 3-STATE buffers/
drivers employed as memory-address drivers, clock drivers,
and bus-oriented transmitters/receivers. Featuring 400
mV of hysteresis at each low current PNP data line input,
they provide improved noise rejection and high fanout outputs
and can be used to drive terminated lines down to
133W.

Features
 3-STATE outputs drive bus lines directly
 PNP inputs reduce DC loading on bus lines
 Hysteresis at data inputs improves noise margins
 Typical IOL (sink current) 24 mA
 Typical IOH (source current) -15 mA
 Typical propagation delay times
 - Inverting 10.5 ns
 - Noninverting 12 ns
 Typical enable/disable time 18 ns
 Typical power dissipation (enabled)
 - Inverting 130 mW
 - Noninverting 135 mW


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