SN54LS623

The SN54LS623 is designed as an octal bus transceiver for asynchronous two-way communication between data buses. Control function implementation allows maximum timing flexibility. Enable inputs may be used to disable the SN54LS623 so that buses are effectively isolated. Depending on the logic levels at the enable inputs, data transmission is allowed from the A bus to the B bus or from the B bus to the A bus.

Some guaranteed operating ranges of SN54LS623 have been concluded into several points as follow. (1)Its supply voltage range would be min 4.5V and typ 5.0V and max 5.5V. (2)Its operating ambient temperature range would be min -55°C and typ 25°C and max 125°C. (3)Its output current high level would be max -3.0mA. (4)Its output current low level would be max -12mA.

Also some DC characteristics of SN54LS623 are concluded as follow. (1)Its input high voltage would be min 2.0V with conditions of guaranteed input high voltage for all inputs. (2)Its input low voltage would be max 0.5V with conditions of guaranteed input low voltage for all inputs. (3)Its input clamp diode voltage would be typ -0.65V and max -1.5V with condition of Vcc=min, Iin=-18mA. (4)Its output high voltage would be min 2.4V and typ 3.4V. (5)Its output low voltage would be typ 0.25V and max 0.4V with condition of Iol=12mA. (6)Its input high current would be max 20uA with condition of Vcc=max and Vin=2.7V. (7)Its input low current would be max -0.4mA. (8)Its power supply current would be max 70mA with condition of Vcc=max. (9)Its short circuit current would be min -40mA and max -225mA.

And some AC characteristics of SN54LS623 are concluded into several points as follow. (1)Its propagation delay A or B to output would be typ 8ns and max 15ns. (2)Its propagation delay B to A would be typ 8ns and max 15ns. (3)Its output enable time GBA to A would be typ 31ns and max 40ns. (4)Its output enable time GAB to B would be typ 31ns and max 40ns. And so on. If you have any question or suggestion or want to know more information about SN54LS623 please contact us for details. Thank you!