SN74LS283

The SN74LS283 is designed as one kind of high-speed 4-Bit Binary Full Adder with internal carry lookahead that accepts two 4-bit binary words (A1A4, B1B4) and a Carry Input (C0). And this device generates the binary Sum outputs (R1R4) and the Carry Output (C4) from the most significant bit. The LS283 operates with either active HIGH or active LOW operands (positive or negative logic).

Features of the SN74LS283 are:(1)generates either odd or even parity for nine data lines; (2)typical data-to-output delay of only 33 ns; (3)cascadable for n-bits; (4)can be used to upgrade systems using MSI parity circuits; (5)typical power dissipation = 80 mW.

The absolute maximum ratings of the SN74LS283 can be summarized as:(1)input HIGH voltage: 2.0 V;(2)input LOW voltage: 0.8 V;(3)input clamp diode voltage: -0.65 to -1.5 V;(4)output HIGH voltage: 2.7 to 3.5 V;(5)output LOW voltage: 0.25 to 0.4 V or 0.35 to 0.5 V;(6)input LOW current: -0.4 mA;(7)short circuit current: 20 to 100 mA;(8)power supply current: 27 mA. If you want to know more information such as the electrical characteristics about the SN74LS283, please download the datasheet in www.seekic.com or www.chinaicmart.com.