Download the DS1249AB datasheet PDF.
This datasheet also covers the DS1249Y variant, as both devices belong to the same 2048k nonvolatile sram family and are provided as variant models within a single manufacturer datasheet.
Description
A0 - A17
- Address Inputs
DQ0 - DQ7
- Data In/Data Out
CE - Chip Enable
WE - Write Enable
OE - Output Enable
VCC GND
- Power (+5V) - Ground
NC - No Connect
DESCRIPTION
The DS1249 2048k Nonvolatile SRAMs are 2,097,152-bit, fully static, nonvolatile SRAMs organized as 262,144 words by 8 bit
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.
DS1249AB Datasheet
