SN74LS83A

The SN74LS83A is designed as a high-speed 4-bit binary full adder with internal carry lookahead. It accepts two 4-bit binary words (A1A4, B1B4) and a carry input (C0).

Some guaranteed operating ranges of SN74LS83A have been concluded into several points as follow. (1)Its supply voltage range would be min 4.75V and typ 5.0V and max 5.25V. (2)Its operating ambient temperature range would be min 0°C and typ 25°C and max 70°C. (3)Its output current high level would be max -0.4mA. (4)Its output current low level would be max 8.0mA.

Also some DC characteristics of SN74LS83A 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 0.8V 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 2.7V and typ 3.5V. (5)Its output low voltage would be typ 0.25V and max 0.4V with condition of Iol=4.0mA and would be typ 0.35V and max 0.5V with condition of Iol=8.0mA. (6)Its input high current would be max 40uA with condition of Vcc=max and Vin=2.7V and it would be max 0.2mA with condition of Vcc=max and Vin=7.0V. (7)Its input low current would be max -0.8mA. (8)Its short circuit current would be min -20mA and max -100mA with condition of Vcc=max. (9)Its power supply current would be max 39mA with condition of Vcc=max.

And some AC characteristics of SN74LS83A are concluded into several points as follow. (1)Its propagation delay Co input to any output would be typ 16ns and max 24ns. (2)Its propagation delay, any A or B input to outputs would be typ 15ns and max 24ns. (3)Its propagation delay, Co input to C4 output would be typ 11ns and max 17ns. (4)Its propagation delay, any A or B input to C4 output would be typ 11ns and max 17ns. And so on. If you have any question or suggestion or want to know more information please contact us for details. Thank you!