7483 4 BIT BINARY FULL ADDER in Pakistan

The 74LS189 is a high-speed 64-bit RAM organized as a 16-word by the 4-bit array. Address inputs are buffered to minimize loading and are fully decoded on-chip. The outputs are 3-state and are in the high impedance state whenever the Chip Select (CS) input is HIGH. The outputs are active only in the read mode and the output data is the complement of the stored data.

74LS109 IC in Pakistan

74LS02 74AHS02 7402 Quad 2-input NOR gate in Pakistan