Datasheet Summary
DS1645Y/AB
DS1645Y/AB Partitionable 1024K NV SRAM
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 time
- Full +10% VCC operating range (DS1645Y)
- Optional +5% VCC operating range (DS1645AB)
- Optional industrial temperature range of
- 40°C to
+85°C, designated IND
- JEDEC standard 32- pin DIP package
- Low...