DS1245AB-70+ IC NVSRAM 1MBIT PARALLEL 32EDIP Analog Devices Inc./Maxim Integrated
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Detailed Product Description
Product Details
DESCRIPTIONThe DS1245 1024k Nonvolatile SRAMs are1,048,576-bit, fully static, nonvolatile SRAMs 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 DS1245 devices can be used in place of existing 128k x 8 static RAMs directly conforming to the popular bytewide 32-pin DIP standard. DS1245 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.
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 70 ns ■ Lithium energy source is electrically disconnected to retain freshness until power is applied for the first time ■ Full ±10% VCC operating range (DS1245Y) ■ Optional ±5% VCC operating range (DS1245AB) ■ 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 #NAME?
Specifications
DescriptionsNVSRAM (Non-Volatile SRAM) Memory IC 1Mb (128K x 8) Parallel 70ns
32-EDIP NVRAM 1024K SRAM Nonvolatile |
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