參數(shù)資料
型號: VG4632321AQ-7
廠商: VANGUARD INTERNATIONAL SEMICONDUCTOR CORP
元件分類: DRAM
英文描述: 524,288x32x2-Bit CMOS Synchronous Graphic RAM
中文描述: 1M X 32 SYNCHRONOUS GRAPHICS RAM, 6 ns, PQFP100
封裝: PLASTIC, QFP-100
文件頁數(shù): 69/81頁
文件大?。?/td> 1965K
代理商: VG4632321AQ-7
Document:
Rev.1
Page 44
VIS
Preliminary
VG4632321A
524,288x32x2-Bit
CMOS Synchronous Graphic RAM
DBx+6
T0 T1 T2 T3 T4 T5 T6 T7 T8 T9 T10 T11 T12 T13 T14 T15 T16 T17 T18 T19 T20 T21 T22
Activate
CBank B
tCK2
Command
Bank A
RAx
RAx
CAx
RBy
CBx
RBy
DAx
DAx-1
DAx+3
DAx+2
DAx+1
Precharge
Command
Bank B
Activate
Command
Bank B
High
RBx
RBx
DAx
DAx+1
DBx
DBx+1 DBx+2 DBx+3 DBx+4 DBx+5
Write
CBank B
Activate
CBank A
The burst counter wraps
from the highest order
page address back to zero
during this time interval
Full Page burst operation does
not terminate when the burst
length is satisfied;the burst counter
increments and continues bursting
beginning with the starting address.
Burst Stop
Command
Data is ignored
BS
DQM
DQ
A9
A0 ~ A8
DSF
CLK
CKE
CS
RAS
CAS
WE
Figure 19.2 Full Page Write Cycle (Burst Length = Full Page, CAS Latency = 2)
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