Product Summary

The DS1245Y-70 1024k Nonvolatile SRAM is a 1,048,576-bit, fully static, nonvolatile SRAM, which is organized as 131,072 words by 8 bits. Each complete 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. DIP-package DS1245Y-70 can be used in place of existing 128k x 8 static RAMs directly conforming to the popular bytewide 32-pin DIP standard. The DS1245Y-70 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

DS1245Y-70 absolute maximum ratings: (1)Voltage on Any Pin Relative to Ground: -0.3V to +7.0V; (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

DS1245Y-70 features: (1)10 years minimum data retention in the absence of external power; (2)Data is automatically protected during power loss; (3)Replaces 128k x 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 70 ns; (7)Lithium energy source is electrically disconnected to retain freshness until power is applied for the first time; (8)Full ±10% VCC operating range (DS1245Y); (9)Optional ±5% VCC operating range; (10)Optional industrial temperature range of -40℃ to +85℃, designated IND; (11)JEDEC standard 32-pin DIP package; (12)New PowerCap Module (PCM) package.

Diagrams

DS1245Y-70 block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
DS1245Y-70
DS1245Y-70
Maxim Integrated Products
NVRAM 1024K SRAM Nonvolatile
Data Sheet
Negotiable 
DS1245Y-70+
DS1245Y-70+
Maxim Integrated Products
NVRAM 1024K SRAM Nonvolatile
Data Sheet
0-1: $10.96
1-25: $10.58
25-100: $10.39
DS1245Y-70IND+
DS1245Y-70IND+
Maxim Integrated Products
NVRAM 1024K SRAM Nonvolatile
Data Sheet
0-1: $11.51
1-25: $11.11
25-100: $10.90
DS1245Y-70IND
DS1245Y-70IND
Maxim Integrated Products
NVRAM
Data Sheet
Negotiable