INTRODUCTION
This data sheet describes the shared properties of the PCD33XXA Family of microcontrollers and its quickly growing number of derivtive microcontrollers. For a particular microcontroller, this data sheet should be read in conjunction with the individual data sheet of the specific device.

GENERAL DESCRIPTION
The PCD33XXA Family of microcontrollers provide up to 8 kbytes of program memory and up to 256 bytes of RAM. All devices include flexible I/O ports, an 8-bit  programmable timer/event counter and a choice of single-level vectored interrupts. The instruction set is based on that of the well-known MAB8048. Being similar to the MAB8400 family of NMOS controllers, some devices can serve as CMOS replacements, especially where the lower power consumption and higher speed provide advantages.