參數(shù)資料
型號(hào): W29S201T-55
廠商: WINBOND ELECTRONICS CORP
元件分類: PROM
英文描述: 128K X 16 FLASH 5V PROM, 17 ns, PDSO48
封裝: 12 X 20 MM, TSOP1-48
文件頁數(shù): 15/31頁
文件大?。?/td> 253K
代理商: W29S201T-55
Preliminary W29S201
- 22 -
Synchronous Burst Read Cycle Timing 2 (4-1-1-1 linear mode)
(Starting Address & Ending Address are both either Even or Odd)
TCYC
CLK
TADVS
TADVH
TKAH
2n+1
2k+1
TCES
High-Z
ADV
MODE
A[16:0]
CE
OE
DQ[15:0]
DON'T CARE
UNDEFINED
TAKS
2n+2
2n+1
2n+3
2k+1
2k+2
TOLZ
TCLZ
TOH
TKQV
TMODS
TKQH
Load Burst Address
Increment
Address Counter
TKQV
TMODH
2k+3
TADVH
TADVS
(Starting Address is Odd 2n+1)
TKQV
2n+1
2n+2
2n+3
2k+1
2k+2
Load Burst Address
(Starting Address is Odd 2k+1)
Ending Addr.
is Odd (2n+3)
DQ's Valid 3 CLK periods
2n+1
2k+1
2k+3
after valid loading (ADV=Low)
DQ's Valid 3 CLK periods
after valid loading (ADV=Low)
Next DQ's Valid 2 CLK periods
after increment (ADV=Hi)
Note: The above waveform is applicable to synchronous burst read mode with starting random address and ending burst
address are both either Even or Odd only (shown above with Starting & Ending are Odd address). The ADV must be
minimum 2 CLK period pulse, and the total wait states hence can be 4 CLK periods minimum. Initial output data DQ’s become
valid 3 CLK periods after the valid address loading started ( ADV =Low) & next sequential output data DQ’s become valid 2
CLK periods after address increment started ( ADV =Hi).
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