#74LV8154

Description: Dual 16-bit binary counter

Datasheet: http://www.ti.com/lit/ds/symlink/sn74lv8154.pdf

Pinout:

          +-----------+
     CKLA |[ 1]   [20]| VCC
     CLKB |[ 2]   [19]| Y0
   ~{GAL} |[ 3]   [18]| Y1
   ~{GAU} |[ 4]   [17]| Y2
   ~{GBL} |[ 5]   [16]| Y3
   ~{GBU} |[ 6]   [15]| Y4
     RCLK |[ 7]   [14]| Y5
  ~{RCOA} |[ 8]   [13]| Y6
~{CLKBEN} |[ 9]   [12]| Y7
      GND |[10]   [11]| ~{CCLR}
          +-----------+