This application note provides information for migrating from STK14C88-3 parts to the CY14B256LA.
Cypress CY14B256LA is a 3 V, 256 Kbit (32 K x 8) nvSRAM in 0.13 u technology. It is a pin to pin functional equivalent of STK14C88-3 (0.8 u) and is a drop in replacement in most AutoStore applications. However, in an existing AutoStore inhibit application, the circuit would require change in routing of power to the VCC pin and a firmware change to disable AutoStore.
This application note highlights the differences between the STK14C88-3 and the CY14B256LA and the parameters of significance that must be considered while migrating.