參數(shù)資料
型號(hào): 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): 65/81頁
文件大?。?/td> 1965K
代理商: VG4632321AQ-7
Document:
Rev.1
Page 40
VIS
Preliminary
VG4632321A
524,288x32x2-Bit
CMOS Synchronous Graphic RAM
Figure 18.1. Full Page Read Cycle (Burst Length = Full Page, CAS Latency = 1)
T0 T1 T2 T3 T4 T5 T6 T7 T8 T9 T10 T11 T12 T13 T14 T15 T16 T17 T18 T19 T20 T21 T22
BS
DQM
DQ
High
Hi-Z
Command
Burst Stop
Bank B
Activate
Bank B
tCK1
RBx
CBx
RBx
RBy
RBy
RAx
CAx
RAx
Ax+1
Ax+2
Ax-2
Ax-1
Ax+1
Bx
Bx+1
Bx+2
Bx+3
Bx+4
Ax
Bx+5
Bx+6
Bx+7
Ax
t
RP
t
RRD
Activate
Command
Bank B
CRead
Bank A
Activate
Command
Bank A
Precharge
Command
Bank B
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.
The burst counter wraps
from the highest order
page address back to zero
during this time interval
A9
A0 ~ A8
DSF
CLK
CKE
CS
RAS
CAS
WE
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