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AT49F040B - Flash Memory

Description

The AT49F040B is a 5-volt-only in-system reprogrammable Flash Memory.

Its 4 megabits of memory is organized as 524,288 words by 8 bits.

Features

  • Single Supply for Read and Write: 4.5 to 5.5V Fast Read Access Time.
  • 55 ns Internal Program Control and Timer Flexible Sector Architecture.
  • One 16K Bytes Boot Sector with Programming Lockout.
  • Two 8K Bytes Parameter Sectors.
  • Eight Main Memory Sectors (One 32K Bytes, Seven 64K Bytes) Fast Erase Cycle Time.
  • 8 Seconds Byte-by-Byte Programming.
  • 12 µs/Byte Typical Hardware Data Protection DATA Polling or Togg.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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www.DataSheet4U.com Features • • • • Single Supply for Read and Write: 4.5 to 5.5V Fast Read Access Time – 55 ns Internal Program Control and Timer Flexible Sector Architecture – One 16K Bytes Boot Sector with Programming Lockout – Two 8K Bytes Parameter Sectors – Eight Main Memory Sectors (One 32K Bytes, Seven 64K Bytes) Fast Erase Cycle Time – 8 Seconds Byte-by-Byte Programming – 12 µs/Byte Typical Hardware Data Protection DATA Polling or Toggle Bit for End of Program Detection Low Power Dissipation – 20 mA Active Current – 25 µA CMOS Standby Current Minimum 100,000 Write Cycles • • • • • • 4-megabit (512K x 8) 5-volt Only Flash Memory AT49F040B 1. Description The AT49F040B is a 5-volt-only in-system reprogrammable Flash Memory.
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