GENERAL DESCRIPTION
The PCD3344A and the PCD3349A provide 2 kbytes and 4 kbytes respectively of Program Memory, 224 bytes of RAM and 20 I/O lines.
The PCD3344A and the PCD3349A are microcontrollers which have been designed primarily for telecom applications. They include an on-chip dual tone multifrequency (DTMF) generator.