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參數資料
型號: W29S201
廠商: WINBOND ELECTRONICS CORP
英文描述: 128K×16bit CMOS Flash Memory With Synchronous Burst Read(具有同步脈沖讀模式的128K×16位CMOS閃速存儲器)
中文描述: 128K的× 16位的CMOS同步突發讀取快閃記憶體(具有同步脈沖讀模式的128K的× 16位的CMOS閃速存儲器)
文件頁數: 21/31頁
文件大小: 253K
代理商: W29S201
Preliminary W29S201
Publication Release Date: April 1999
- 21 -
Revision A1
TIMING WAVEFORMS
Synchronous Burst Read Cycle Timing 1 (3-1-1-1 linear mode)
(Starting Address is Even and Ending Address is Odd)
T
CYC
CLK
T
ADVS
T
ADVH
T
KAH
2n
2k
T
CES
T
KQH
High-Z
ADV
MODE
A[16:0]
CE
OE
DQ[15:0]
DON'T CARE
UNDEFINED
T
AKS
2n+2
2n+1
2n+3
2k
2k+1
T
OLZ
T
CLZ
T
OH
T
KQV
T
MODS
2n
Load Burst Address
(Starting Address is Even 2n)
Increment
Address Counter
T
KQV
T
MODH
2k+2
2k+3
T
ADVH
T
ADVS
T
KQV
2n
2n+1
2n+2
2n+3
2k
2k
2k+1
2k+2
2k+3
Load Burst Address
(Starting Address is Even 2k)
Ending Burst Addr.
is Odd (2n+3)
DQ's Valid 2 CLK periods
after loading (ADV=Low)
DQ's Valid 2 CLK periods
after loading (ADV=Low)
Next DQ's Valid 2 CLK periods
after Increment (ADV=Hi)
Note
: The above waveform is applicable to synchronous read mode with starting random address is always Even and
ending address is always Odd address only. The
ADV
can be 1 CLK period pulse minimum, and the total wait states can be
3 CLK periods minimum. Initial output data DQ
become valid 2 CLK periods after the valid address loading started
(
ADV
=Low) & next sequential output data DQ
become valid 2 CLK periods after address increment started (
ADV
=Hi).
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