SN54LS242

The SN54LS242 is designed asynchronous two-way communications between data buses. It can be used to drive terminated lines down to 133 ohms. The feature of SN54LS242 are as follows: (1)two-way asynchronous communication between data buses; (2)PNP inputs reduce DC loading; (3)hysteresis at inputs improve noise margin.

The absolute maximum ratings of the SN54LS242 are: (1)supply voltage VCC: 7V; (2)input voltage: 7V; (3)voltage applied to a disabled 3-state output: 5.5V; (4)opearting free-air temperature range: -55 to 125; (5)stprage temperature range: -65 to 150

The following is about the electrical characteristics of SN54LS242: (1)VIK: -1.5V max at VCC=min, II=-18mA; (2)hysteresis: 0.2V min and 0.4V typical at VCC=min; (3)VOH: 2.4V min and 3.1V typical at VCC=min, VIH=2V, VIL=max, IOH=-3mA; (4)VOL: 0.25V typical and 0.4V max at VCC=min, VIH=2V, VIL=max; (5)IOZH: 40A max at VCC=max, VIH=2V, VIL=max, VO=2.7V; (6)IOZL: -200A max at VCC=max, VIH=2V, VIL=max, VO=0.4V; (7)IIH: 20A at VCC=max, VI=2.7V.