Download the DS1645AB datasheet PDF.
This datasheet also covers the DS1645Y variant, as both devices belong to the same partitionable 1024k nv sram family and are provided as variant models within a single manufacturer datasheet.
Features
- 10 years minimum data retention in the absence of
external power.
- Data is automatically protected during power loss.
- Directly replaces 128K x 8 volatile static RAM.
- Write protects selected blocks of memory when pro-
grammed.
- Unlimited write cycles.
- Low.
- power CMOS.
- Read and write access times as fast as 70 ns.
- Lithium energy source is electrically disconnected to
retain freshness until power is applied for the first.