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.comCY14E256LA 256-Kbit (32 K 8) nvSRAM 256-Kbit (32 K 8) nvSRAM Features Functional Description 25 ns and 45 ns access times The Cypress CY14E256LA is a fast static RAM, with a nonvolatile element in each memory cell. The memory is Internally organized as 32 K 8 (CY14E256LA) organized as 32 KB. The embedded nonvolatile elements Hands-off automatic STORE on power-down with only a small incorporate QuantumTrap technology, producing the worlds capacitor most reliable nonvolatile memory. The SRAM provides infinite read and write cycles, while independent nonvolatile data STORE to QuantumTrap nonvolatile elements initiated by resides in the highly reliable QuantumTrap cell. Data transfers software, device pin, or autostore on power-down from the SRAM to the nonvolatile elements (the STORE RECALL to SRAM initiated by software or power-up 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 Single 5 V + 10% operation Industrial temperature 44-pin thin small-outline package (TSOP) Type II and 32-pin small-outline integrated circuit (SOIC) package Pb-free and restriction of hazardous substances (RoHS) compliant Logic Block Diagram V V CC CAP QuantumTrap 512 X 512 A POWER 5 CONTROL A STORE 6 A 7 A 8 STATIC RAM STORE/ RECALL A 9 ARRAY RECALL HSB A 11 CONTROL 512 X 512 A 12 A 13 A 14 SOFTWARE A - A DETECT 13 0 COLUMN I/O DQ 0 DQ 1 COLUMN DEC DQ 2 DQ 3 DQ 4 DQ A A A A A A 0 1 4 5 2 3 10 DQ 6 DQ 7 OE CE WE Cypress Semiconductor Corporation 198 Champion Court San Jose, CA 95134-1709 408-943-2600 Document Number: 001-54952 Rev. *K Revised November 14, 2014 INPUT BUFFERS ROW DECODER