W49F201S-55B中文資料華邦電子數(shù)據(jù)手冊(cè)PDF規(guī)格書(shū)

GENERAL DESCRIPTION

The W49F201 is a 2-megabit, 5-volt only CMOS flash memory organized as 128K x 16 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 W49F201 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/Erase/Program

? Fast Program operation:

- Word-by-Word programming: 50 mS (max.)

? Fast Erase operation: 60 mS (typ.)

? Fast Read access time: 45/55 nS

? Endurance: 1K/10K cycles (typ.)

? Ten-year data retention

? Hardware data protection

? Sector configuration

- One 8K words boot block with lockout protection

- Two 8K words parameter blocks

- One 104K words (208K bytes) Main Memory Array Blocks

? 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 word-wide pinouts

? Available packages: 44-pin SOP, 48-pin TSOP