NSF Computing and Communication Foundations (CCF): Core Programs
Grants.gov https://www.grants.gov/web/grants/view-opportunity.html?oppId=306822
NSF Publication 18-568   https://www.nsf.gov/pubs/2018/nsf18568/nsf18568.htm 

CISE’  Division of Computing and Communication Foundations (CCF) supports research and education projects that develop new knowledge in four core programs: 

• The Algorithmic Foundations (AF) program;
• The Communications and Information Foundations (CIF) program;
• The Foundations of Emerging Technologies (FET) program; and
• The Software and Hardware Foundations (SHF) program.

Proposers are invited to submit proposals in two project classes, which are defined as follows: 
Small Projects - up to $500,000 total budget with durations up to three years; and Medium Projects - $500,001 to $1,200,000 total budget with durations up to four years.  See NSF Publication 18-568.