May 6 (Reuters) - Synopsys ( SNPS ) will sell its

software integrity (SIG) unit to a private equity consortium led

by Clearlake Capital and Francisco Partners in a deal valued at

$2.1 billion, the chip designer said on Monday.

The deal includes up to $475 million in cash payable upon

the consortium achieving a specified rate of return in

connection with one or more liquidity transactions, according to

a statement.

Reuters had reported last week that the consortium was in

advanced talks to acquire the unit for more than $2 billion.