參數資料
型號: HYB 39S256800AT
廠商: SIEMENS AG
英文描述: 256-Mbit(4banks × 8MBit × 8) Synchronous DRAM(256M(4列 × 8M位 × 8)同步動態(tài)RAM)
中文描述: 256兆位(4banks × 8MBit × 8)同步DRAM(256M(4列× 8米× 8位)同步動態(tài)RAM)的
文件頁數: 26/42頁
文件大?。?/td> 282K
代理商: HYB 39S256800AT
HYB39S256400/800/160AT
256MBit Synchronous DRAM
Semiconductor Group
25
6. Write and Read Interrupt
6.1 Write Interrupted by a Write
)
6.2 Write Interrupted by a Read
1 Clk Interval
SPT03791
CLK
T0
T1
T2
T3
T4
T5
T6
T7
T8
Command
NOP
NOP
NOP
NOP
NOP
NOP
DQ’s
(Burst Length = 4, CAS latency = 2, 3)
NOP
Write A
DIN A0
DIN B0
DIN B1
DIN B2
DIN B3
Write B
1 Clk Interval
T5
NOP
DOUT B1
DOUT B0
Input data for the Write is ignored.
, DQ’s
latency = 3
t
CK3
CAS
don’t care
DIN A0
don’t care
(Burst Length = 4, CAS latency = 2, 3)
CLK
, DQ’s
Command
latency = 2
t
CK2
CAS
NOP
T0
DIN A0
Write A
don’t care
Read B
T1
T2
DOUT B0
NOP
NOP
T4
T3
SPT03719
appears on the outputs to avoid data contention.
DOUT B2
Input data must be removed from the DQ’s
at least one clock cycle before the Read data
DOUT B1
DOUT B3
NOP
DOUT B3
NOP
DOUT B2
T6
T7
NOP
T8
相關PDF資料
PDF描述
HYB 39S256160AT 256-Mbit(4banks × 4MBit × 16) Synchronous DRAM(256M(4列 × 4M位 × 16)同步動態(tài)RAM)
HYB 39S256400CT 256-Mbit(4banks × 16MBit × 4) Synchronous DRAM(256M(4列 × 16M位 × 4)同步動態(tài)RAM)
HYB 39S256800CT 256-Mbit(4banks × 8MBit × 8) Synchronous DRAM(256M(4列 × 8M位 × 8)同步動態(tài)RAM)
HYB 39S256160CT 256-Mbit(4banks × 4MBit × 16) Synchronous DRAM(256M(4列 × 4M位 × 16)同步動態(tài)RAM)
HYB 39S64160AT 4M x 16 MBit Synchronous DRAM for High Speed Graphics Applications(64M位(4M x 16)同步動態(tài)RAM(用于高速圖形場合))
相關代理商/技術參數
參數描述
HYB39S256800AT-7.5 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x8 SDRAM
HYB39S256800AT-8 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x8 SDRAM
HYB39S256800AT-8A 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x8 SDRAM
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?