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U631H64 - SoftStore 8K x 8 nvSRAM

Datasheet Summary

Description

The U631H64 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 8192 x 8 bits.
  • 25, 35 and 45 ns Access Times.
  • 12, 20 and 25 ns Output Enable Access Times.
  • Software STORE Initiation (STORE Cycle Time < 10 ms).
  • Automatic STORE Timing.
  • 105 STORE cycles to EEPROM.
  • 10 years data retention in www. DataSheet4U. com EEPROM.
  • Automatic RECALL on Power Up.
  • Software RECALL Initiation (RECALL Cycle Time < 20 μs).
  • Unlimited RECALL cycles from EEPROM.

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Datasheet preview – U631H64

Datasheet Details

Part number U631H64
Manufacturer Simtek Corporation
File Size 171.81 KB
Description SoftStore 8K x 8 nvSRAM
Datasheet download datasheet U631H64 Datasheet
Additional preview pages of the U631H64 datasheet.

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Full PDF Text Transcription

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Obsolete - Not Recommended for New Designs U631H64 SoftStore 8K x 8 nvSRAM Features High-performance CMOS nonvolatile static RAM 8192 x 8 bits • 25, 35 and 45 ns Access Times • 12, 20 and 25 ns Output Enable Access Times • Software STORE Initiation (STORE Cycle Time < 10 ms) • Automatic STORE Timing • 105 STORE cycles to EEPROM • 10 years data retention in www.DataSheet4U.com EEPROM • Automatic RECALL on Power Up • Software RECALL Initiation (RECALL Cycle Time < 20 μs) • Unlimited RECALL cycles from EEPROM • Unlimited Read and Write to SRAM • Single 5 V ± 10 % Operation • Operating temperature ranges: 0 to 70 °C -40 to 85 °C • QS 9000 Quality Standard • ESD characterization according MIL STD 883C M3015.
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