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W49F020 - 256K x 8 CMOS FLASH MEMORY

General Description

The W49F020 is a 2-megabit, 5-volt only CMOS flash memory organized as 256K × 8 bits.

The device can be programmed and erased in-system with a standard 5V power supply.

A 12-volt VPP is not required.

Key Features

  • Single 5-volt operations:.
  • 5-volt Read.
  • 5-volt Erase.
  • 5-volt Program.
  • Fast Program operation:.
  • Byte-by-Byte programming: 50 µS (max. ).
  • Fast Erase operation: 100 mS (typ. ).
  • Fast Read access time: 70/90 nS.
  • Endurance: 1K/10K cycles (typ. ).
  • Twenty-year data retention.
  • Hardware data protection.
  • One 8K byte Boot Block with Lockout protection.
  • Low power consumption.
  • Active cu.

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Datasheet Details

Part number W49F020
Manufacturer Winbond
File Size 183.61 KB
Description 256K x 8 CMOS FLASH MEMORY
Datasheet download datasheet W49F020 Datasheet

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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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Preliminary W49F020 256K × 8 CMOS FLASH MEMORY GENERAL DESCRIPTION The W49F020 is a 2-megabit, 5-volt only CMOS flash memory organized as 256K × 8 bits. The device can be programmed and erased in-system with a standard 5V power supply. A 12-volt VPP is not required. The unique cell architecture of the W49F020 results in fast program/erase operations with extremely low current consumption (compared to other comparable 5-volt flash memory products). The device can also be programmed and erased using standard EPROM programmers. FEATURES • Single 5-volt operations: − 5-volt Read − 5-volt Erase − 5-volt Program • Fast Program operation: − Byte-by-Byte programming: 50 µS (max.) • Fast Erase operation: 100 mS (typ.) • Fast Read access time: 70/90 nS • Endurance: 1K/10K cycles (typ.