Ramtron FM28V020
The FM28V020 is a 32K x 8 nonvolatile memory that reads and writes like a standard SRAM. It provides data retention for over 10 years while eliminating the reliability concerns, functional disadvantages, and system design complexities of battery-backed SRAM (BBSRAM). In-system operation of the FM28V020 is very similar to other RAM devices and can be used as a drop-in replacement for standard SRAM.FEATURES
256Kbit Ferroelectric Nonvolatile RAM● Organized as 32Kx8
● 1014 Read/Write Cycles
● NoDelay™ Writes
● Page Mode Operation to 40MHz
● Advanced High-Reliability Ferroelectric Process Superior to Battery-backed SRAM Modules
● No battery concerns
● Monolithic reliability
● True surface mount solution, no rework steps
● Superior for moisture, shock, and vibration
● Resistant to negative voltage undershoots SRAM Replacement
● JEDEC 32Kx8 SRAM pinout
● 60 ns Access Time, 90 ns Cycle Time Low Power Operation
● 2.0V – 3.6V Power Supply
● Standby Current 90 µA (typ)
● Active Current 7 mA (typ) Industry Standard Configurations
● Industrial Temperature -40° C to +85° C
● 28-pin “Green”/RoHS SOIC (-SG)
GENERAL DESCRIPTION
A ferroelectric random access memory or F-RAM is nonvolatile, which means that data is retained after power is removed. Fast write timing and virtually unlimited write endurance make F-RAM superior to other types of memory. Read and write cycles may be triggered by /CE or simply by changing the address.