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| 型号： | W39L020Q-70Z |
| 厂商： | WINBOND ELECTRONICS CORP |
| 元件分类： | PROM |
| 英文描述： | 256K X 8 FLASH 3.3V PROM, 70 ns, PDSO32 |
| 封装： | 8 X 14 MM, LEAD FREE, STSOP-32 |
| 文件页数： | 1/29页 |
| 文件大小： | 294K |
| 代理商： | W39L020Q-70Z |
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W39L020 Data Sheet
256K
× 8 CMOS FLASH MEMORY
Publication Release Date: June 6, 2005
- 1 -
Revision A7
Table of Contents-
1.
GENERAL DESCRIPTION ......................................................................................................... 3
2.
FEATURES ................................................................................................................................. 3
3.
PIN CONFIGURATIONS............................................................................................................. 4
4.
BLOCK DIAGRAM ...................................................................................................................... 5
5.
PIN DESCRIPTION..................................................................................................................... 5
6.
FUNCTIONAL DESCRIPTION.................................................................................................... 6
6.1
Device Bus Operation..................................................................................................... 6
6.1.1
Read Mode ...................................................................................................................6
6.1.2
Write Mode ...................................................................................................................6
6.1.3
Standby Mode ..............................................................................................................6
6.1.4
Output Disable Mode....................................................................................................6
6.1.5
Auto-select Mode..........................................................................................................6
6.2
Data Protection ............................................................................................................... 7
6.2.1
Low VDD Inhibit............................................................................................................7
6.2.2
Write Pulse "Glitch" Protection .....................................................................................7
6.2.3
Logical Inhibit................................................................................................................7
6.2.4
Power-up Write and Read Inhibit..................................................................................7
6.3
Command Definitions ..................................................................................................... 8
6.3.1
Read Command ...........................................................................................................8
6.3.2
Auto-select Command ..................................................................................................8
6.3.3
Byte Program Command ..............................................................................................8
6.3.4
Chip Erase Command ..................................................................................................9
6.3.5
Sector/Page Erase Command ......................................................................................9
6.4
Write Operation Status ................................................................................................. 10
6.4.1
DQ7: Data Polling.......................................................................................................10
6.4.2
DQ6: Toggle Bit ..........................................................................................................10
7.
TABLE OF OPERATING MODES ............................................................................................ 11
7.1
Device Bus Operations ................................................................................................. 11
7.2
Auto-select Codes (High Voltage Method) ................................................................... 11
7.3
Sector Address Table ................................................................................................... 11
7.4
Software Product Identification and Boot Block Lockout Detection Flow Chart ........... 17
8.
ELECTRICAL CHARACTERISTICS......................................................................................... 18
8.1
Absolute maximum Ratings .......................................................................................... 18
8.2
D.C. Operating Characteristics ..................................................................................... 18
8.3
Pin Capacitance............................................................................................................ 18
8.4
A.C. Characteristics ...................................................................................................... 19
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 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 |
| W39L020T-70B | 制造商:WINBOND 制造商全称:Winbond 功能描述:128K X 8 CMOS FLASH MEMORY |
| W39L020T-90 | 制造商:WINBOND 制造商全称:Winbond 功能描述:128K X 8 CMOS FLASH MEMORY |
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