6551 (R6551P) ACIA - Rockwell

R6551P Asynchronous Communications Interface Adaptor (ACIA) by Rockwell.      

Speed : 1MHz .   

Package: 28-pin wide DIP   

Download Rockwell R6551P  .pdf datasheet:

Status: NOS (New Old Stock)     

Individually tested components: YES   

RoHS compliant: no   

**see R6551AP  listings for 2MHz version**