Cypress Semiconductor has introduced 2-Mbit and 8-Mbit non-volatile static random access memories (nvSRAMs), extending Cypress's nvSRAM portfolio from 16-Kbit to 8-Mbit. The new devices feature access times of 20ns, infinite read, write and recall cycles, and 20-year data retention. They offer a good solution for applications requiring continuous high-speed writing of data and non-volatile data security. Systems requiring nvSRAM functionality include servers, RAID applications, harsh-environment industrial controls, automotive, medical and data communications.
The CY14B102 2-Mbit nvSRAM and CY14B108 8-Mbit nvSRAM are ROHS-compliant and directly replace SRAM, battery-backed SRAM, EPROM and EEPROM devices, offering reliable non-volatile data storage without batteries. Data transfers from the SRAM to the device's nonvolatile elements take place automatically at power down. On power up, data is restored to the SRAM from the nonvolatile memory. Both operations are also available under software control. The new nvSRAMs are manufactured on Cypress's S8 0.13-micron SONOS (Silicon Oxide Nitride Oxide Silicon) embedded nonvolatile memory technology, enabling high densities and improved access times and performance.
The 2- and 8-Mbit nvSRAMs have an available Real-Time-Clock feature that combines low standby oscillator current with high performance integrated memory, enabling event time-stamping supported by non-volatile memory. nvSRAMs offer a suitable alternative for fast, non-volatile memory. They reduce board space and design complexity and are economical and reliable. The new products are new in a series of nvSRAMs from Cypress, which also includes 16-Kbit, 64-Kbit, 256-Kbit, 1-Mbit and 4-Mbit devices currently shipping in production volumes.
Cypress will use the S8 technology in next generation PSoC mixed-signal arrays, OvationONS laser navigation sensors, programmable clocks and other products. SONOS is compatible with standard CMOS technologies and offers advantages including high endurance, low power, and radiation hardness. Cypress's 2-Mbit and 8-Mbit nvSRAMs are currently sampling, with production starting in the third quarter of 2008. The devices are available in 48-pin FBGA and 44- and 54-pin TSOPII packages.
