54LS244 Datasheet - National Semiconductor

54LS244 Octal TRI-STATE Buffers/Line Drivers/Line Receivers

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 impro.

54LS244 Features

* Y TRI-STATE outputs drive bus lines directly Y PNP inputs reduce DC loading on bus lines Y Hysteresis at data inputs improves noise margins Y Typical IOL (sink current) 54LS 12 mA 74LS 24 mA Y Typical IOH (source current) 54LS b12 mA 74LS b15 mA Y Typical propagation delay times Inverting 10

54LS244-NationalSemiconductor.pdf