Datasheet Summary
19-5631; Rev 11/10
.maxim-ic.
Features
- 10 years minimum data retention in the absence of external power
- Data is automatically protected during power loss
- Unlimited write cycles
- Low-power CMOS operation
- Read and write access times of 70 ns
- Lithium energy source is electrically disconnected to retain freshness until power is applied for the first time
- Full ± 10% VCC operating range (DS1249Y)
- Optional ± 5% VCC operating range (DS1249AB)
- Optional industrial temperature range of -40°C to +85°C, designated IND
- JEDEC standard 32-pin DIP package
DS1249Y/AB 2048k Nonvolatile SRAM
PIN ASSIGNMENT
NC A16 A14 A12
A7 A6 A5 A4 A3 A2 A1
A0
DQ0
DQ1 DQ2
1 2 3 4 5 6 7 8 9...
