參數(shù)資料
型號(hào): KM4216C258
廠商: SAMSUNG SEMICONDUCTOR CO. LTD.
英文描述: 256K x 16 Bit CMOS Video RAM(256K x 16 位 CMOS視頻RAM)
中文描述: 256K × 16位的CMOS視頻RAM(256K × 16位的CMOS視頻內(nèi)存)
文件頁(yè)數(shù): 21/41頁(yè)
文件大?。?/td> 772K
代理商: KM4216C258
KM4216C258
CMOS VIDEO RAM
Rev. 0.1 (Mar. 1998)
RAS
A
0
~ A
8
X1
X2
16
Y
1
(A
8
= Don
t Care)
RT
SRT
DEVICE OPERATIONS
( Continued)
Figure 10. Split Read Transfer Abnormal Usage (Case 2)
QSF
SC
0
511
Y
1
+256
255
16
A
A
B
C
B
C
A
A
255
256
RAM
SAM
511
X1 Row Data Full Transfer
Upper SAM :
Half Transfer (X2 Row)
Lower SAM :
Serial Read (X1 Row)
Upper SAM :
Serial Read (X2 Row)
Lower SAM :
No Operation
0
A
B
255
256
SAM
511
0
Upper SAM :
No Operation
Lower SAM :
Serial Read
(X1 Row)
X1 X2 X3
A
A
B
C
B
C
A
B
255
256
RAM
SAM
511
0
X1 X2 X3
A
B
255
256
SAM
511
0
QSF
Allowed Period
Allowed Period
Not
Allowed Period
Allowed Period
Not
Allowed Period
t
STH
t
STS
t
STH
t
STS
Figure 11. Split Transfer Cycle Limitation Period
CASL
CASU
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