STK12C68

www.DataSheet4U.com STK12C68 (SMD5962-94599) 8Kx8 AutoStore nvSRAM DESCRIPTION The Simtek STK12C68 is a 64Kb fast static RAM with a non-volatile Quantum Trap storage element included with each memory cell. The SRAM provides the fast access & cycle times, ease of use and unlimited read & write endurance of a normal SRAM. Data transfers automatically to the non-volatile storage cells when power loss is detected (the STORE operation). On power up, data is automatically restored to the SRAM (the RECALL operation). Both STORE and RECALL operations are also available under software control. The Simtek nvSRAM is the first monolithic non-volatile memory to offer unlimited writes and reads. It is the highest performance, most reliable non-volatile memory available. FEATURES 25, 35, 45, 55 ns Read Access & Write Cycle Time Unlimited Read/Write Endurance Automatic Non-volatile STORE on Power Loss Non-Volatile STORE Under Hardware or Software Control Automatic RECALL to SRAM on Power Up Unlimited RECALL Cycles 1 Million STORE Cycles 100-Year Non-volatile Data Retention Single 5V ± 10% Power Supply Commercial, Industrial, Military Temperatures 28-pin 330-mil SOIC, 300-mil PDIP, and 600-mil PDIP Packages (RoHS-Compliant) 28-Pin CDIP and LCC Military Packages Block Diagram VCCX VCAP QUANTUM TRAP 128 x 512 POWER CONTROL ROW DECODER A5 A6 A7 A8 A9 A11 A12 STORE STATIC RAM ARRAY 128 X 512 RECALL STORE/ RECALL CONTROL SOFTWARE DETECT A0 – A12 DQ0 DQ1 DQ2 DQ3 ...