Skip to main content
Renesas Electronics America - Knowledgebase

Can uPD5555 (CMOS) timer IC be replace with uPC1555 (bipolar) timer IC?

Latest Updated:03/01/2006


Can I replace the uPD5555 (CMOS) timer IC with the uPC1555 (bipolar) timer IC, which has the same pin assignment?


The functions of the two ICs are the same, but the uPC1555 differs in terms of electrical specifications due to its bipolar characteristics.
Be sure to evaluate the uPC1555 carefully before use, paying special attention to the cautions described in the data sheet.
Suitable Products