Datasheet Summary
19-5625; Rev 11/10
.maxim-ic.
Features
- 10 years minimum data retention in the absence of external power
- Data is automatically protected during power loss
- Directly replaces 8k x 8 volatile static RAM or EEPROM
- Unlimited write cycles
- Low-power CMOS
- JEDEC standard 28-pin DIP package
- 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 (DS1225AD)
- Optional ±5% VCC operating range
(DS1225AB)
- Optional industrial temperature range of
-40°C to +85°C, designated IND
DS1225AB/AD 64k Nonvolatile SRAM
PIN ASSIGNMENT
NC A12
A7 A6 A5 A4 A3 A2 A1 A0...