Please note that Cypress is an Infineon Technologies Company. The document following this cover page is marked as Cypress document as this is the company that originally developed the product. Please note that Infineon will continue to offer the product to new and existing customers as part of the Infineon product portfolio. Continuity of document content The fact that Infineon offers the following product as part of the Infineon product portfolio does not lead to any changes to this document. Future revisions will occur when appropriate, and any changes will be set out on the document history page. Continuity of ordering part numbers Infineon continues to support existing part numbers. Please continue to use the ordering part numbers listed in the datasheet for ordering. www.infineon.comCY14U256LA 256-Kbit (32 K 8) nvSRAM 256-Kbit (32 K 8) nvSRAM Features Functional Description 35 ns access time The Cypress CY14U256LA is a fast static RAM, with a nonvolatile element in each memory cell. The memory is Internally organized as 32 K 8 organized as 32 K bytes of 8 bits each. The embedded Hands off automatic STORE on power down with only a small nonvolatile elements incorporate QuantumTrap technology, capacitor producing the worlds most reliable nonvolatile memory. The SRAM provides infinite read and write cycles, while independent STORE to QuantumTrap nonvolatile elements initiated by nonvolatile data resides in the highly reliable QuantumTrap cell. software, device pin, or AutoStore on power down Data transfers from the SRAM to the nonvolatile elements (the RECALL to SRAM initiated by software or power up STORE operation) takes place automatically at power down. On power-up, data is restored to the SRAM (the RECALL operation) Infinite read, write, and recall cycles from the nonvolatile memory. Both the STORE and RECALL 1 million STORE cycles to QuantumTrap operations are also available under software control. For a complete list of related documentation, click here. 20 year data retention Core V = 2.7 V to 3.6 V I/O V = 1.65 V to 1.95 V CC CCQ Industrial temperature 48-ball fine-pitch ball grid array (FBGA) package Pb-free and restriction of hazardous substances (RoHS) compliance Logic Block Diagram gg V V CCQV CC CAP Quantum Trap 512 X 512 POWER A 5 STORE CONTROL A 6 A 7 RECALL A STORE/ 8 STATIC RAM HSB A RECALL 9 ARRAY CONTROL A 11 512 X 512 A 12 A 13 A 14 SOFTWARE A - A DETECT 14 2 DQ 0 COLUMN I/O DQ 1 COLUMN DEC DQ 2 DQ 3 DQ 4 DQ A A A A A A 5 0 1 2 3 4 10 DQ 6 DQ 7 OE CE WE Cypress Semiconductor Corporation 198 Champion Court San Jose, CA 95134-1709 408-943-2600 Document Number: 001-86200 Rev. *B Revised November 13, 2014 INPUT BUFFERS ROW DECODER