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U634H256XS - PowerStore 32K x 8 nvSRAM Die

Datasheet Summary

Description

The U634H256XS has two separate modes of operation: SRAM mode and nonvolatile mode.

In SRAM mode, the memory operates as an ordinary static RAM.

In nonvolatile operation, data is transferred in parallel from SRAM to EEPROM or from EEPROM to SRAM.

Features

  • High-performance CMOS nonvolatile static RAM 32768 x 8 bits 25, 35 and 45 ns Access Times 10, 15 and 20 ns Output Enable Access Times ICC = 15 mA typ. at 200 ns Cycle Time Automatic STORE to EEPROM on Power Down using external capacitor Hardware or Software initiated STORE (STORE Cycle Time < 10 ms) Automatic STORE Timing 105 STORE cycl.

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Datasheet Details

Part number U634H256XS
Manufacturer Simtek
File Size 282.89 KB
Description PowerStore 32K x 8 nvSRAM Die
Datasheet download datasheet U634H256XS Datasheet
Additional preview pages of the U634H256XS datasheet.

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Obsolete - Not Recommended for New Designs www.DataSheet4U.com U634H256XS PowerStore 32K x 8 nvSRAM Die Description The U634H256XS has two separate modes of operation: SRAM mode and nonvolatile mode. In SRAM mode, the memory operates as an ordinary static RAM. In nonvolatile operation, data is transferred in parallel from SRAM to EEPROM or from EEPROM to SRAM. In this mode SRAM functions are disabled. The U634H256XS is a fast static RAM (25, 35, 45 ns), with a nonvolatile electrically erasable PROM (EEPROM) element incorporated in each static memory cell. The SRAM can be read and written an unlimited number of times, while independent nonvolatile data resides in EEPROM.
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