资料介绍
The FM21L16 is a 128Kx16 nonvolatile memory that
reads and writes like a standard SRAM. A
ferroelectric random access memory or FRAM is
nonvolatile, which means that data is retained after
power is removed. It provides data retention for over
10 years while eliminating the reliability concerns,
functional disadvantages, and system design
complexities of battery-backed SRAM (BBSRAM).
Fast write timing and high write endurance make
FRAM superior to other types of memory.
In-system operation of the FM21L16 is very similar
to other RAM devices and can be used as a drop-in
replacement for standard SRAM. Read and write
cycles may be triggered by /CE or simply by
changing the address. The FRAM memory is
nonvolatile due to its unique ferroelectric memory
process. These features make the FM21L16 ideal for
nonvolatile memory applications requiring frequent
or rapid writes in the form of an SRAM.
The FM21L16 includes a low voltage monitor that
blocks access to the memory array when VDD drops
below a critical threshold. The memory is protected
against an inadvertent access and data corruption
under this condition. The device also features
software-controlled write protection. The memory
array is divided into 8 uniform blocks, each of which
can be individually write protected.
The device is available in a 400 mil 44-pin TSOP-II
surface mount package. Device specifications are
guaranteed over industrial temperature range –40°C
to +85°C.
reads and writes like a standard SRAM. A
ferroelectric random access memory or FRAM is
nonvolatile, which means that data is retained after
power is removed. It provides data retention for over
10 years while eliminating the reliability concerns,
functional disadvantages, and system design
complexities of battery-backed SRAM (BBSRAM).
Fast write timing and high write endurance make
FRAM superior to other types of memory.
In-system operation of the FM21L16 is very similar
to other RAM devices and can be used as a drop-in
replacement for standard SRAM. Read and write
cycles may be triggered by /CE or simply by
changing the address. The FRAM memory is
nonvolatile due to its unique ferroelectric memory
process. These features make the FM21L16 ideal for
nonvolatile memory applications requiring frequent
or rapid writes in the form of an SRAM.
The FM21L16 includes a low voltage monitor that
blocks access to the memory array when VDD drops
below a critical threshold. The memory is protected
against an inadvertent access and data corruption
under this condition. The device also features
software-controlled write protection. The memory
array is divided into 8 uniform blocks, each of which
can be individually write protected.
The device is available in a 400 mil 44-pin TSOP-II
surface mount package. Device specifications are
guaranteed over industrial temperature range –40°C
to +85°C.
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