4032
Triple serial adder.
Each section can be used to add long binary words, one bit on each clock
cycle.  CRST resets the internal carry flip-flop after one clock delay.
The INV inputs can be used to invert the sum output (giving a 1's-complemented
result).

     +----------+
  3S |1  +--+ 16| VCC
3INV |2       15| 3A
 CLK |3       14| 3B
  2S |4       13| 2A
2INV |5  4032 12| 2B
CRST |6       11| 1B
1INV |7       10| 1A
 GND |8        9| 1S
     +----------+

[This information is part of the GIICM]