UCV-03 central processing unit is organized around an 8-bit 80C552 microcontroler (a Philips Semiconductors product), as last version, and it is specific to medium-complexity applications.

Main UCV-03 technical features:

11.0592 MHz frequency, 80C552 microcontroler;
external RAM of 32 KB;
NVSRAM or TIMEKEEPER type RAM memory;
external EPROM memory of 32 KB;
EEPROM memory (24C16) connected on I2C serial;
digital bus (for data, addresses and commands) to allow the connection of various interfaces and corresponding parallel dialog;
digital bus compatible with alphanumerical and graphical LCD modules;
3 voltage type analog inputs;
processor ports of interest buffered and available through connectors;
UART and I2C serial interfaces;
4x4-keyboard compatible connector
small overall dimension.