these octal buffers and line drivers are designed specifically to improve both the performance and density of 3-state memory address drivers clock drivers and bus-oriented receivers and transmitters. the hc244 devices are organized as two 4-bit buffers/drivers with separate output-enable (oe)\ inputs. when oe\ is low the device passes noninverted data from the a inputs to the y outputs. when oe\ is high the outputs are in the high-impedance state.