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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 mS (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 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