Texas Instruments SN74AS240A

these octal buffers/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. when these devices are used with the als241 as241a als244 and as244a devices the circuit designer has a choice of selected combinations of inverting and noninverting outputs symmetrical active-low output-enable (oe)\ inputs and complementary oe and oe\ inputs. these devices feature high fan-out and improved fan-in. the -1 version of sn74als240a is identical to the standard version except that the recommended maximum iol for the -1 version is 48 ma. there is no -1 version of the sn54als240a.