#74LS182

Description: Carry generator

Datasheet: http://www.ti.com/lit/gpn/sn74LS182

Pinout:

    +-----------+
 G1 |[ 1]   [16]| VCC
 P1 |[ 2]   [15]| P2
 G0 |[ 3]   [14]| G2
 P0 |[ 4]   [13]| CN
 G3 |[ 5]   [12]| CN+X
 P3 |[ 6]   [11]| CN+Y
  P |[ 7]   [10]| G
GND |[ 8]    [9]| CN+Z
    +-----------+