Control and timing (C&T) circuit for the Hewlett-Packard Classic series of calculators (HP-35 etc.). This one is from an HP-45.

Package

MOSTEK
MK6021P
1818-0078
ASSB. MALAYSIA
7349 F

Die

Die size: 5.38 mm x 3.80 mm

MOSTEK
MK 6021
THE
EHG