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參數資料
| 型號： | W39L020 |
| 英文描述： | FLASH |
| 中文描述： | 閃光 |
| 文件頁數： | 1/26頁 |
| 文件大小： | 345K |
| 代理商： | W39L020 |
W39L020
256K
×
8 CMOS FLASH MEMORY
Publication Release Date: November 11, 2002
- 1 -
Revision A4
1. GENERAL DESCRIPTION
The W39L020 is a 2Mbit, 3.3-volt only CMOS flash memory organized as 256K
×
8 bits. For flexible
erase capability, the 2Mbits of data are divided into 4 uniform sectors of 64 Kbytes, which are
composed of 16 smaller even pages with 4 Kbytes. The byte-wide (
×
8) data appears on DQ7
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 W39L020 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
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
μ
S (max.)
Fast Erase operation:
Chip Erase cycle time: 100 mS (max.)
Sector Erase cycle time: 25mS (max.)
Page Erase cycle time: 25mS (max.)
Read access time: 70/90 nS
4 Even sectors with 64K bytes each, which is
composed of 16 flexible pages with 4K bytes
Any individual sector or page can be erased
Hardware protection:
Optional 16K byte or 64K byte Top/Bottom
Boot Block with lockout protection
Flexible 4K-page size can be used as
Parameter Blocks
Typical program/erase cycles: 1K/10K
Twenty-year data retention
Low power consumption
Active current: 10 mA (typ.)
Standby current: 5
μ
A (typ.)
End of program detection
Software method: Toggle bit/Data polling
TTL compatible I/O
JEDEC standard byte-wide pinouts
Available packages: 32L PLCC, 32L TSOP (8 x
20 mm) and 32L STSOP (8 x 14 mm)
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| W39L020P-70 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:128K X 8 CMOS FLASH MEMORY |
| W39L020P-70B | 制造商:WINBOND 制造商全稱:Winbond 功能描述:128K X 8 CMOS FLASH MEMORY |
| W39L020P-90 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:128K X 8 CMOS FLASH MEMORY |
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| W39L020Q-70 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:128K X 8 CMOS FLASH MEMORY |
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