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): 14/41頁(yè)
文件大小: 772K
代理商: KM4216C258
KM4216C258
CMOS VIDEO RAM
Rev. 0.1 (Mar. 1998)
RAS
CASL
CASU
WB/WE
DSF
Hi - Z
Wi/DQi
CBRR
New Masked
Write
Power-up
CBRR
New Masked Mode
Load
Mask Register
Old Masked
Write
Mask Data
Register
Write Stored
Input Data
Mask Data
Register
Write Stored
Input Data
Stored
Data
Lower
Byte
1
1
0
0
1
0
1
1
1
0
0
1
0
1
1
0
0
1
0
1
1
0
0
1
0
1
1
1
0
0
0
0
Upper
Byte
1
0
0
1
0
1
1
0
0
1
0
0
0
1
0
1
1
1
0
1
0
0
1
1
0
1
0
0
1
0
0
1
(New Masked Write Example)
After
Before
Lower
Byte
1
0
0
1
0
1
1
0
1
1
0
0
1
0
1
1
0
1
0
1
1
0
0
1
0
1
1
1
0
0
0
0
Upper
Byte
0
1
0
0
0
1
0
1
1
0
0
1
0
1
1
0
1
1
0
1
0
0
1
1
0
1
0
0
1
0
0
1
(Old Masked Write Example)
After
Before
Stored
Data
DEVICE OPERATIONS
( Continued)
Figure 4. New Masked Write Cycle and Old Masked Write Cycle Example
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