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W49F002UP90B Datasheet(PDF) 1 Page - Winbond

Part # W49F002UP90B
Description  256K X 8 CMOS FLASH MEMORY
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Manufacturer  WINBOND [Winbond]
Direct Link  http://www.winbond.com
Logo WINBOND - Winbond

W49F002UP90B Datasheet(HTML) 1 Page - Winbond

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W49F002U
256K
× 8 CMOS FLASH MEMORY
Publication Release Date: April 2000
- 1 -
Revision A2
GENERAL DESCRIPTION
The W49F002U 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 W49F002U 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: 35 µS (typ.)
Fast Erase operation: 100 mS (typ.)
Fast Read access time: 70/90/120 nS
Endurance: 10K cycles (typ.)
Ten-year data retention
Hardware data protection
One 16K byte Boot Block with Lockout
protection
Two 8K byte Parameter Blocks
Two Main Memory Blocks (96K, 128K) Bytes
Low power consumption
− Active current: 25 mA (typ.)
− Standby current: 20 µA (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


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