HomedatasheetW29F020P-90

W29F020P-90 Datasheet

256K x 8 CMOS FLASH MEMORY
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Description

GENERAL DESCRIPTION
The W49F020 is a 2-megabit, 5-volt only CMOS flash memory organized as 256K x 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 mS (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 current: 25 mA (typ.)
   - Standby current: 20 mA (typ.)
• Automatic program and erase timing with internal VPP generation
• End of program or erase detection
   - Toggle bit
   - Data polling
• Latched address and data
• TTL compatible I/O
• JEDEC standard byte-wide pinouts
• Available packages: 32-pin DIP and 32-pin
   TSOP and 32-pin-PLCC

Features

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Manufacturer information

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