Maxim Integrated Products DS1225AD-150IND+ Nonvolatile Sram (NVSRAM) 64Kbit 8K x 8bit 150ns Read/Write Parallel 4.75V to 5.25V EDIP-28

The DS1225AD-150IND+ from Maxim Integrated Products is a 64K non-volatile SRAM in 28 pin EDIP package. It is a 65,536bit, fully static, non-volatile SRAM organized as 8192 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 the write protection is unconditionally enabled to prevent data corruption. The NV SRAM can be used in place of existing 8K x 8 SRAMs directly conforming to the popular bytewide 28 pin DIP package. The device matches the pin-out of 2764 EPROM and the 2864 EEPROM allowing direct substitution while enhancing performance. There is no limit on the number of write cycles that can be executed and additional support circuitry is not required for microprocessor interfacing.

• Supply voltage range from 4.5V to 5.5V
• Operating temperature range from -40°C to +85°C
• Data is automatically protected during power loss
• Directly replaces 8K x 8 volatile static RAM or EEPROM
• Unlimited write cycles
• Low power CMOS
• Read and write access time is 150ns
• Lithium energy source is disconnected to retain freshness until power is applied for the first time
• Write protection voltage is 4.37V
• Operating current is 85mA

Applications

Embedded Design & Development

Other details

Brand	MAXIM INTEGRATED PRODUCTS
Part Number	DS1225AD-150IND+
Quantity	Each
Technical Data Sheet EN

All product and company names are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them. Image is for illustrative purposes only. Please refer to product description.