#74LS393

Description: Dual BCD 4-bit counter

Datasheet: 74xx\74LS393.pdf

Pinout:

    +-----------+
 CP |[ 1]   [14]| VCC
 MR |[ 2]   [13]| CP
 Q0 |[ 3]   [12]| MR
 Q1 |[ 4]   [11]| Q0
 Q2 |[ 5]   [10]| Q1
 Q3 |[ 6]    [9]| Q2
GND |[ 7]    [8]| Q3
    +-----------+