7552 Resource Module

CR1 Run/Check
CR2 Speaker
J1-2 Keyboard
J3 DB15 Digital Output

Motorola MC146818 RTC + RAM
Motorola MC146823 CMOS Parallel Interface (CPI)

Content created and/or collected by:
Louis Ohland, Peter Wendt, William Walsh, David Beem, Tatsuo Sunagawa, Jim Shorney, Tim Clarke, Kevin Bowling, Tomáš Slavotínek, and many others.

Ardent Tool of Capitalism - MAD Edition! is maintained by Tomáš Slavotínek.
Last update: 21 May 2022 - Changes & Credits | Legal Info & Contact