4045
21-bit asynchronous binary counter with oscillator and reset input.
Only two 3% duty cycle outputs (180" out of phase) from the last counter stage
are available.  Can be used to generate a 1Hz clock signal using a 2.097152MHz
crystal.  P and N MOSFET source connections from the oscillator inverter are
brought out of the package to allow the use of source resistors, but usually
pS=VCC and nS=GND.

    +----------+
 pS |1  +--+ 16| X1
 nS |2       15| X0
VCC |3       14| GND
    |4       13|
    |5  4045 12|
    |6       11|
 QA |7       10|
 QB |8        9|
    +----------+

[This information is part of the GIICM]