Product Summary

The DS1250WP-150 is a 4,194,304-bit, fully static, nonvolatile SRAM organized as 524,288 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. The DS1250WP-150 can be used in place of existing 512k x 8 static RAMs directly conforming to the popular bytewide 32-pin DIP standard. DS1250W devices in the PowerCap Module package are directly surface mountable and are normally paired with a DS9034PC PowerCap to form a complete Nonvolatile SRAM module. There is no limit on the number of write cycles that can be executed and no additional support circuitry is required for microprocessor interfacing.

Parametrics

DS1250WP-150 absolute maximum ratings: (1)Voltage on Any Pin Relative to Ground: -0.3V to +4.6V; (2)Operating Temperature: 0 to 70℃, -40 to +85℃ for IND parts; (3)Storage Temperature: -40 to +70℃, -40 to +85℃ for IND parts; (4)Soldering Temperature: 260℃ for 10 seconds.

Features

DS1250WP-150 features: (1)10 years minimum data retention in the absence of external power; (2)Data is automatically protected during power loss; (3)Replaces 512k × 8 volatile static RAM, EEPROM or Flash memory; (4)Unlimited write cycles; (5)Low-power CMOS; (6)Read and write access times as fast as 150 ns; (7)Lithium energy source is electrically disconnected to retain freshness until power is applied for the first time; (8)Optional industrial temperature range of -40 to +85℃, designated IND; (9)JEDEC standard 32-pin DIP package; (10)New PowerCap Module (PCM) package.

Diagrams

DS1250WP-150 block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
DS1250WP-150
DS1250WP-150
Maxim Integrated Products
NVRAM 3.3V 4096K NV SRAM
Data Sheet
Negotiable 
DS1250WP-150+
DS1250WP-150+
Maxim Integrated Products
NVRAM 3.3V 4096K NV SRAM
Data Sheet
0-33: $31.93
33-50: $31.48
DS1250WP-150-C01
DS1250WP-150-C01
Maxim Integrated Products
NVRAM 3.3V 4096K NV SRAM
Data Sheet
Negotiable