參數(shù)資料
型號: HYB39S256800
廠商: SIEMENS AG
英文描述: 256 MBit Synchronous DRAM(256M位同步動態(tài)RAM)
中文描述: 256兆比特同步DRAM(256M位同步動態(tài)RAM)的
文件頁數(shù): 22/46頁
文件大?。?/td> 594K
代理商: HYB39S256800
HYB39S256400/800/160AT
256 MBit Synchronous DRAM
22
3. Read Interrupted by a Read
(Burst Length = 4, CAS latency = 2, 3)
T0
4.1 Read to Write Interval
(Burst Length = 4, CAS latency = 3)
T0
COMMAND
READ A
READ B
NOP
NOP
NOP
NOP
NOP
NOP
t
CK2,
DQ’s
CAS latency = 2
t
CK3,
DQ’s
CAS latency = 3
NOP
CLK
T2
T1
T3
T4
T5
T6
T7
T8
DOUT B0
DOUT B1
DOUT B2
DOUT B3
DOUT A0
DOUT B0
DOUT B1
DOUT B2
DOUT B3
DOUT A0
COMMAND
NOP
READ A
NOP
NOP
NOP
NOP
WRITE B
NOP
NOP
DQM
DOUT A0
DIN B0
DIN B1
DIN B2
: “H” or “L”
Must be Hi-Z before
the Write Command
DQ’s
Minimum delay between the Read and Write Commands = 4+1 = 5 cycles
CLK
T2
T1
T3
T4
T5
T6
T7
T8
t
DQZ
t
DQW
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參數(shù)描述
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HYB39S256800AT-8 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x8 SDRAM
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HYB39S256800AT-8B 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x8 SDRAM
HYB39S256800CT-7.5 制造商:未知廠家 制造商全稱:未知廠家 功能描述:?256Mb (32M x 8) PC133 3-3-3?