74191
4-bit synchronous binary up/down counter with load and both carry out and
ripple clock outputs.

       +----------+
    P1 |1  +--+ 16| VCC
    Q1 |2       15| P0
    Q0 |3       14| CLK
/CLKEN |4   74  13| /RCLK
  D//U |5  191  12| /RCO
    Q2 |6       11| /LOAD
    Q3 |7       10| P2
   GND |8        9| P3
       +----------+

[This information is part of the GIICM]