54LS244 Datasheet - OCTAL BUFFERS/LINE DRIVERS (with 3-state outputs)

54LS244 Description
OCTAL BUFFERS/LINE DRIVERS (with 3-state outputs)
54LS244 Vendor
National Semiconductor
54LS244 Categories
Bus/Line Drivers/Transceivers
54LS244 Features
TRI-STATE outputs drive bus lines directly PNP inputs reduce DC loading on bus lines Hysteresis at data inputs improves noise margins Typical I_OL (sink current) 54LS 12 mA 74LS 24 mA Typical I_OH (source current) 54LS -12 mA 74LS -15 mA Typical propagation delay times Inverting 10.5 ns Noninverting12 ns Typical enable/disable time 18 ns Typical power dissipation (enabled) Inverting130 mW Noninverting135 mW
54LS244 Description
These buffers/line drivers are designed to improve both the performance and PC board density of TRI-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 133 Ohm.
Parameter	Value
Package	LCC
Pins	20
Status	Lifetime buy
Pricing	$4.50

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