“The CY23FS04-3 is a FailSafe zero delay buffer with two reference clock inputs and four phase-aligned outputs.”
Reportedly produced at FAB2 using a 500nm process.
CY23FS04Z XC 1731 B 05 634595
(M) Cypress 2002 (Logo) 7C80501A
Top metal imaged using Nikon Plan Apo 40x/1.0 oil