SN54LS446

The SN54LS446 is designed as one kind of quadruple bus transceivers for data transmission from individual lines of the A bus to individual lines of the B bus or the reverse, depending on the logic levels at the direction-control pins DIR1 through DIR4.

SN54LS446 has five features. (1)3-state outputs drive bus lines directly. (2)PNP inputs reduce DC loading on bus line. (3)Hysteresis at bus inputs improves noise margins. (4)Flow-thru data pinout (B bus opposite A bus). (5)Choice of true and inverting. Those are all the main features.

Some absolute maximum ratings of SN54LS446 have been concluded into several points as follow. (1)Its supply voltage Vcc would be 7V. (2)Its input voltage would be 7V. (3)Its off-state output voltage would be 5.5V. (4)Its operating free-air temperature range would be from -55°C to 125°C. (5)Its storage temperature range would be from -65°C to 150°C. It should be noted that stresses above those listed in absolute maximum ratings may cause permanent damage to device.

Also some electrical characteristics of SN54LS446 are concluded as follow. (1)Its high level input voltage would be min 2V. (2)Its low level input voltage would be max 0.6V. (3)Its input clamp voltage would be max -1.5V. (4)Its high level output voltage would be min 2.4V and typ 3.4V at Ioh=-3mA and would be min 2V at Ioh=max. (5)Its low level output voltage would be typ 0.25V and max 0.4V at Iol=12mA. (6)Its off-state output current high level voltage applied would be max 20uA. (7)Its off-state output current low level voltage applied would be max -0.4mA. (8)Its high level input current would be max 20uA. (9)Its low level input current would be max -0.4mA. (10)Its short-circuit output current would be min -40mA and max -225mA. And so on. If you have any question or suggestion or want to know more information about SN54LS446 please contact us for details. Thank you!