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參數資料
型號: W39V040FAT
廠商: WINBOND ELECTRONICS CORP
元件分類: PROM
英文描述: 512K X 8 CMOS FLASH MEMORY WITH FWH INERFACE
中文描述: 512K X 8 FLASH 3.3V PROM, 11 ns, PDSO40
封裝: 10 X 20 MM, TSOP-40
文件頁數: 24/36頁
文件大?。?/td> 518K
代理商: W39V040FAT
W39V040FA
- 24 -
11. TIMING WAVEFORMS FOR FWH INTERFACE MODE
Read Cycle Timing Diagram
T
CYC
FWH4
#RESET
FWH[3:0]
Start
IDSEL
CLK
1 Clock
2 Clocks
A[15:12]
Address
Sync
TAR
1111b
Tri-State
0000b
T
KQ
T
HD
T
SU
A[11:8]
A[7:4]
0000
b]
Data out 2 Clocks
D[7:4]
Data
D[3:0]
Next Start
1 Clock
0000b
T
HD
T
SU
Load Address in 7
A[3:0]
M Size
XXXXb
XA[22]XXb XXA[18:16]
1 Clock
1 Clock
0000b
1101b
Note: When A22 = high, the host will read the BIOS code from the FWH d
While A22 = low, the host will read the GPI (Add = FFBC0100
Product ID (Add = FFBC0000/FFBC0001) from the FWH dev
1111b
Tri-State
2 Clocks
TAR
Write Cycle Timing Diagram
TCYC
FWH4
#RESET
FWH[3:0]
Start
Write
IDSEL
CLK
Next Start
1 Clock
1 Clock
A[15:12]
Load Data in 2 Clocks
D[7:4]
Address
Sync
2 Clocks
TAR
Data
1111b
Tri-State
0000b
THD
TSU
A[11:8]
A[7:4]
0000b
D[3:0]
0000b
Load Address in 7 Clocks
A[3:0]
M Size
XXXXb
XXXXb
XXA[18:16]b
1 Clock
1 Clock
0000b
1110b
2 Clocks
TAR
1111b
Tri-State
相關PDF資料
PDF描述
W39V040FB 512K X 8 CMOS FLASH MEMORY WITH FWH INTERFACE
W39V040FBP 512K X 8 CMOS FLASH MEMORY WITH FWH INTERFACE
W39V040FBPZ 512K X 8 CMOS FLASH MEMORY WITH FWH INTERFACE
W39V040FBQ 512K X 8 CMOS FLASH MEMORY WITH FWH INTERFACE
W39V040FBQZ 512K X 8 CMOS FLASH MEMORY WITH FWH INTERFACE
相關代理商/技術參數
參數描述
W39V040FB 制造商:WINBOND 制造商全稱:Winbond 功能描述:512K X 8 CMOS FLASH MEMORY WITH FWH INTERFACE
W39V040FB_07 制造商:WINBOND 制造商全稱:Winbond 功能描述:512K × 8 CMOS FLASH MEMORY WITH FWH INTERFACE
W39V040FBP 制造商:WINBOND 制造商全稱:Winbond 功能描述:512K X 8 CMOS FLASH MEMORY WITH FWH INTERFACE
W39V040FBPZ 制造商:WINBOND 制造商全稱:Winbond 功能描述:512K X 8 CMOS FLASH MEMORY WITH FWH INTERFACE
W39V040FBQ 制造商:WINBOND 制造商全稱:Winbond 功能描述:512K X 8 CMOS FLASH MEMORY WITH FWH INTERFACE