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W49V002FA Datasheet PDF - Winbond

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W49V002FA Datasheet PDF : W49V002FA pdf   
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The  W49V002FA is a 2-megabit, 3.3-volt only CMOS flash memory organized as 256K  ´8 bits. The device can be programmed and erased in-system with a standard 3.3V power supply. A 12-volt VPP is not required. The unique cell architecture of the  W49V002FA results in fast program/erase operations with extremely low current consumption. This device can operate at two modes, Programmer bus interface mode and FWH bus interface mode.

·  Single 3.3-volt operations:
   - 3.3-volt Read
   - 3.3-volt Erase
   - 3.3-volt Program
·  Fast program operation:
   - Byte-by-byte programming: 50 mS (typ.)
·  Fast erase operation: 150 mS (typ.)
·  Fast read access time: Tkq 11 nS
·  Endurance: 10K cycles (typ.)
·  Twenty-year data retention
·  Hardware data protection
   - #TBL & #WP serve as hardware protection
·  One 16K bytes Boot Block with lockout protection
·  Two 8K bytes Parameter Blocks
·  Four main memory blocks (with 32K bytes, 64K bytes, 64K bytes, 64K bytes each)
·  Low power consumption
   - Active current: 40 mA (typ. for FWH)
·  Automatic program and erase timing with internal VPPgeneration
·  End of program or erase detection
   - Toggle bit
   - Data polling
·  Latched address and data
·  TTL compatible I/O
·  Available packages: 32L PLCC, 32L STSOP

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