Cypress offers 4Mbit and 8Mbit nvSRAMs with RTCs
Cypress Semiconductor
4Mbit and 8Mbit nvSRAMs
Cypress Semiconductor has introduced a 1Mbit serial non-volatile static random access memory (nvSRAM) range and 4Mbit and 8Mbit nvSRAMs with integrated real-time clocks (RTCs).
The company's nvSRAMs are manufactured on its S8 0.13-micron Silicon Oxide Nitride Oxide Silicon (SONOS) embedded non-volatile memory technology, enabling greater densities and improved access times and performance.
Cypress claims that nvSRAMs are ideal solutions for applications requiring absolute non-volatile data security such as Raid systems, industrial control and automation (such as PLCs, motion control, motor drives and robotics), single-board computers, point-of-sale terminals, e-metering, automotives, medical applications and data communications.
The serial nvSRAM range includes 1Mbit devices in multiple configurations with an industry-standard SPI interface.
Available in small-footprint eight-pin DFN and 16-pin SOIC packages, the serial nvSRAMs feature operating frequencies up to 40MHz.
One member of the serial nvSRAM range also integrates an RTC.
The company's parallel nvSRAMs feature access times as low as 20ns, infinite read, write and recall cycles and up to 20 years of data retention.
The new 4Mbit and 8Mbit nvSRAMs integrate RTCs that enable the time-stamping of critical data for back-up and also feature programmable alarm functions and watchdog timers.
Cypress's nvSRAMs are RoHS compliant and directly replace SRAM, battery-backed SRAM (BBSRAM) and EEPROM devices, offering fast non-volatile data storage without batteries.
Data transfers from the SRAM to the devices' non-volatile elements take place automatically at power-down.
On power-up, data is restored to the SRAM from the non-volatile memory.
Both operations are also available under software control.
The nvSRAMs are claimed to reduce board space and design complexity.
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