Maxim Integrated DS1245W
The DS1245W 3.3V 1024k Nonvolatile SRAM is a 1,048,576-bit, fully static, nonvolatile SRAM organized as 131,072 words by 8 bits. Each NV SRAM has a self-contained lithium energy source and control circuitry which constantly monitors VCC for an out-of-tolerance condition. When such a condition occurs, the lithium energy source is automatically switched on and write protection is unconditionally enabled to prevent data corruption.| Part No. | DS1245W |
|---|---|
| Datasheet | DS1245W Download |
| Manufacturer |  Maxim Integrated |
| Description | 3.3V 1024k Nonvolatile SRAM |
| Buy | Stock & Price |
FEATURES
● 10 years minimum data retention in the absence of external power● Data is automatically protected during power loss
● Replaces 128k x 8 volatile static RAM, EEPROM or Flash memory
● Unlimited write cycles
● Low-power CMOS
● Read and write access times of 100ns
● Lithium energy source is electrically disconnected to retain freshness until power is applied for the first time
● Optional industrial temperature range of -40°C to +85°C, designated IND
● JEDEC standard 32-pin DIP package
● PowerCap Module (PCM) package - Directly surface-mountable module - Replaceable snap-on PowerCap provides lithium backup battery - Standardized pinout for all nonvolatile SRAM products - Detachment feature on PowerCap allows easy removal using a regular screwdriver PIN ASSIGNMENT NC A16 A14 A12 A7 A6 A5 A4 A3 A2 A1 A0 DQ0 DQ1 DQ2 GND 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 32 VCC 31 A15 30 NC 29 WE 28 A13 27 A8 26 A9 25 A11 24 OE 23 A10 22 CE 21 DQ7 20 DQ6 19 DQ5 18 DQ4 17 DQ3 32-PIN Encapsulated...
