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参数资料
| 型号： | W39L020P-90Z |
| 厂商： | WINBOND ELECTRONICS CORP |
| 元件分类： | PROM |
| 英文描述： | 256K X 8 FLASH 3.3V PROM, 90 ns, PQCC32 |
| 封装： | LEAD FREE, PLASTIC, LCC-32 |
| 文件页数： | 23/29页 |
| 文件大小： | 294K |
| 代理商： | W39L020P-90Z |
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W39L020
Publication Release Date: June 6, 2005
- 3 -
Revision A7
1. GENERAL DESCRIPTION
The W39L020 is a 2 Mbit, 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
VPP 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
S (max.)
Fast Erase operation:
Chip Erase cycle time: 100 mS (max.)
Sector Erase cycle time: 25 mS (max.)
Page Erase cycle time: 25 mS (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
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), 32L STSOP (8 x 14 mm),
32L PLCC Lead free and 32L STSOP
(8 x 14 mm) Lead free
相关PDF资料 |
PDF描述 |
|---|---|
| W39L512Q-90B | 64K X 8 FLASH 3.3V PROM, 90 ns, PDSO32 |
| W39V040FCQ | 512K X 8 FLASH 3.3V PROM, 11 ns, PDSO32 |
| W3E16M72SR250BM | 16M X 72 DDR DRAM, 0.75 ns, PBGA219 |
| W3E32M64S-200BM | 32M X 64 DDR DRAM, 0.8 ns, PBGA219 |
| W3E32M64S-250BM | 32M X 64 DDR DRAM, 0.8 ns, PBGA219 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| W39L020Q-70 | 制造商:WINBOND 制造商全称:Winbond 功能描述:128K X 8 CMOS FLASH MEMORY |
| W39L020Q-70B | 制造商:WINBOND 制造商全称:Winbond 功能描述:128K X 8 CMOS FLASH MEMORY |
| W39L020Q-90 | 制造商:WINBOND 制造商全称:Winbond 功能描述:128K X 8 CMOS FLASH MEMORY |
| W39L020Q-90B | 制造商:WINBOND 制造商全称:Winbond 功能描述:128K X 8 CMOS FLASH MEMORY |
| W39L020T-70 | 制造商:WINBOND 制造商全称:Winbond 功能描述:128K X 8 CMOS FLASH MEMORY |
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