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W39L040Q-70 Datasheet

  • W39L040Q-70

  • 512 K X 8 CMOS FLASH MEMORY

  • 27頁

  • WINBOND

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W39L040
512K
脳
8 CMOS FLASH MEMORY
1. GENERAL DESCRIPTION
The W39L040 is a 4Mbit, 3.3-volt only CMOS flash memory organized as 512K
脳
8 bits. For flexible
erase capability, the 4Mbits of data are divided into 8 uniform sectors of 64 Kbytes, which are
composed of 16 smaller even pages with 4 Kbytes. The byte-wide (脳 8) data appears on DQ7
鈭?/div>
DQ0.
The device can be programmed and erased in-system with a standard 3.3V power supply. A 12-volt
V
PP
is not required. The unique cell architecture of the W39L040 results in fast program/erase
operations with extremely low current consumption (compared to other comparable 3.3-volt flash
memory products). The device can also be programmed and erased by using standard EPROM
programmers.
2. FEATURES
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Single 3.3-volt operations
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3.3-volt Read
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3.3-volt Erase
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3.3-volt Program
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Hardware protection:
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Optional 16K byte or 64K byte Top/Bottom
Boot Block with lockout protection
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Fast Program operation:
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Byte-by-Byte programming: 50
碌S
(max.)
Fast Erase operation:
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Chip Erase cycle time: 100 mS (max.)
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Sector Erase cycle time: 25 mS (max.)
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Page Erase cycle time: 25 mS (max.)
Flexible 4K-page size can be used as
Parameter Blocks
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Typical program/erase cycles: 1K/10K
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Twenty-year data retention
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Low power consumption
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Active current: 10 mA (typ.)
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Standby current: 2
碌A
(typ.)
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End of program detection
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Read access time: 70/90 nS
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8 Even sectors with 64K bytes each, which is
composed of 16 flexible pages with 4K bytes
Any individual sector or page can be erased
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Software method: Toggle bit/Data polling
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TTL compatible I/O
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JEDEC standard byte-wide pinouts
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Available packages: 32L PLCC, 32L TSOP (8 x
20 mm) and 32L STSOP (8 x 14 mm)
-1-
Publication Release Date: February 10, 2003
Revision A3

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