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28HC256 - AT28HC256

Description

The AT28HC256 is a high-performance electrically erasable and programmable readonly memory.

Its 256K of memory is organized as 32,768 words by 8 bits.

Manufactured with Atmel’s advanced nonvolatile CMOS technology, the AT28HC256 offers access times to 70 ns with power dissipation of just 440 mW.

Features

  • Fast Read Access Time.
  • 70 ns.
  • Automatic Page Write Operation.
  • Internal Address and Data Latches for 64 Bytes.
  • Internal Control Timer.
  • Fast Write Cycle Times.
  • Page Write Cycle Time: 3 ms or 10 ms Maximum.
  • 1 to 64-byte Page Write Operation.
  • Low Power Dissipation.
  • 80 mA Active Current.
  • 3 mA Standby Current.
  • Hardware and Software Data Protection.
  • DATA Polling for End of Write Detecti.

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Full PDF Text Transcription

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Features • Fast Read Access Time – 70 ns • Automatic Page Write Operation – Internal Address and Data Latches for 64 Bytes – Internal Control Timer • Fast Write Cycle Times – Page Write Cycle Time: 3 ms or 10 ms Maximum – 1 to 64-byte Page Write Operation • Low Power Dissipation – 80 mA Active Current – 3 mA Standby Current • Hardware and Software Data Protection • DATA Polling for End of Write Detection • High Reliability CMOS Technology – Endurance: 104 or 105 Cycles – Data Retention: 10 Years • Single 5V ± 10% Supply • CMOS and TTL Compatible Inputs and Outputs • JEDEC Approved Byte-wide Pinout • Full Military and Industrial Temperature Ranges • Green (Pb/Halide-free) Packaging Option 256K (32K x 8) High-speed Parallel EEPROM AT28HC256 1.
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