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參數資料
| 型號： | W39V040BQ |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | PROM |
| 英文描述： | W39V040B |
| 中文描述： | 512K X 8 FLASH 3.3V PROM, 11 ns, PDSO32 |
| 封裝： | STSOP-32 |
| 文件頁數： | 9/32頁 |
| 文件大小： | 356K |
| 代理商： | W39V040BQ |
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W39V040B
Publication Release Date: April 14, 2005
- 9 -
Revision A3
8. TABLE OF OPERATING MODES
8.1 Operating Mode Selection - Programmer Mode
PINS
MODE
#OE
#WE
#RESET
ADDRESS
DQ.
Read
V
IL
V
IH
V
IH
AIN
Dout
Write
V
IH
V
IL
V
IH
AIN
Din
Standby
X
X
V
IL
X
High Z
V
IL
X
V
IH
X
High Z/DOUT
Write Inhibit
X
V
IH
V
IH
X
High Z/DOUT
Output Disable
V
IH
X
V
IH
X
High Z
8.2 Operating Mode Selection - LPC Mode
Operation modes in LPC interface mode are determined by "START Cycle" when it is selected. When it
is not selected, its outputs (LAD[3:0]) will be disable. Please reference to the "LPC Cycle Definition".
8.3 LPC Cycle Definition
FIELD
NO. OF
CLOCKS
DESCRIPTION
Start
1
"0000b" appears on LPC bus to indicate the initial
Cycle Type & Dir
1
"010Xb" indicates memory read cycle; while "011xb" indicates
memory write cycle. "X" mean don't have to care.
TAR
2
Turned Around Time
Addr.
8
Address Phase for Memory Cycle. LPC supports the 32 bits address
protocol. The addresses transfer most significant nibble first and
least significant nibble last. (i.e. Address[31:28] on LAD[3:0] first ,
and Address[3:0] on LAD[3:0] last.)
Sync.
N
Synchronous to add wait state. "0000b" means Ready, "0101b"
means Short Wait, "0110b" means Long Wait, "1001b" for DMA only,
"1010b" means error, other values are reserved.
Data
2
Data Phase for Memory Cycle. The data transfer least significant
nibble first and most significant nibble last. (i.e. DQ[3:0] on LAD[3:0]
first, then DQ[7:4] on LAD[3:0] last.)
相關PDF資料 |
PDF描述 |
|---|---|
| W39V040BQZ | W39V040B |
| W39V040B | W39V040B |
| W39V040BP | W39V040B |
| W39V040BPZ | W39V040B |
| W39V040C | 512K 】 8 CMOS FLASH MEMORY WITH LPC INTERFACE |
相關代理商/技術參數 |
參數描述 |
|---|---|
| W39V040BQZ | 制造商:WINBOND 制造商全稱:Winbond 功能描述:W39V040B |
| W39V040C | 制造商:WINBOND 制造商全稱:Winbond 功能描述:512K 】 8 CMOS FLASH MEMORY WITH LPC INTERFACE |
| W39V040CP | 制造商:WINBOND 制造商全稱:Winbond 功能描述:512K 】 8 CMOS FLASH MEMORY WITH LPC INTERFACE |
| W39V040CPZ | 制造商:WINBOND 制造商全稱:Winbond 功能描述:512K 】 8 CMOS FLASH MEMORY WITH LPC INTERFACE |
| W39V040CQ | 制造商:WINBOND 制造商全稱:Winbond 功能描述:512K 】 8 CMOS FLASH MEMORY WITH LPC INTERFACE |
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