STK14CA8-NF45I

The Simtek STK14CA8 incorporates Simtek’s QuantumTrapTM technology in each memory cell to provide nonvolatile memory .

The key features of the Simtek STK14CA8 AutoStoreTM nvSRAM mentioned in the document include: - 25ns, 35ns, and 45ns access times - "Hands-off" automatic STORE on Power Down with only a small capacitor - STORE to QuantumTrap™ Nonvolatile Elements initiated by software, device pin, or AutoStore™ on Power Down - RECALL to SRAM initiated by software or Power Up - Unlimited READ, WRITE, and RECALL cycles - 5mA typical ICC at 200ns Cycle Time - 1,000,000 STORE Cycles to QuantumTrap™ - 100-Year Data Retention to QuantumTrap™ - Single 3V +20%, -10% Operation - Commercial and Industrial Temperatures - SOIC, SSOP, and DIP Packages - RoHS Compliance Simtek STK14CA8 is a fast static RAM with a nonvolatile element in each memory cell, incorporating QuantumTrap™ technology for reliable nonvolatile memory .

The data transfer from the SRAM to the nonvolatile elements in the STK14CA8 device is initiated by a software address sequence. The software STORE cycle is initiated by executing sequential E controlled READ cycles from six specific address locations in exact order. During the STORE cycle, an erase of the previous nonvolatile data is first performed, followed by a program of the nonvolatile elements. Once the STORE cycle is initiated, further input and output are disabled until the cycle is completed. It is important that no other READ or WRITE accesses intervene in the sequence, or the sequence will be aborted, and no STORE or RECALL will take place.