參數(shù)資料
型號(hào): UPD45128163-I-E
廠商: Elpida Memory, Inc.
英文描述: 128M-bit Synchronous DRAM 4-bank, LVTTL WTR (Wide Temperature Range)
中文描述: 128兆位同步DRAM 4銀行,LVTTL水樹(寬溫度范圍)
文件頁(yè)數(shù): 30/92頁(yè)
文件大?。?/td> 1107K
代理商: UPD45128163-I-E
Data Sheet M12650EJBV0DS00
30
μ
PD45128441, 45128841, 45128163
11.4 Read to Write Command Interval
During a read cycle, READ can be interrupted by WRITE.
The Read and Write command interval is 1 cycle minimum. There is a restriction to avoid data conflict. The Data
bus must be Hi-Z using DQM before WRITE.
D1
D2
D3
D4
READ
DQ
Command
CLK
T0
T2
T1
T3
T4
T5
T6
T7
T8
Burst length = 4
WRITE
DQM
Hi-Z
1cycle
READ can be interrupted by WRITE. DQM must be High at least 3 clocks prior to the Write command.
CLK
T0
T2
T1
T3
T4
T5
T6
T7
T8
Burst length = 8
T9
Q1
Q2
Q3
READ
DQ
Command
D1
D2
D3
WRITE
DQM
Hi-Z is
necessary
Q1
Q2
READ
DQ
Command
D1
D2
D3
WRITE
DQM
Hi-Z is
necessary
/CAS latency = 2
/CAS latency = 3
相關(guān)PDF資料
PDF描述
UPD45128163G5 128M-bit Synchronous DRAM 4-bank, LVTTL
UPD45128163-T 128M-bit Synchronous DRAM 4-bank, LVTTL WTR (Wide Temperature Range)
UPD45128163G5-A75-9JF-E 128M-bit Synchronous DRAM 4-bank, LVTTL
UPD45128163G5-A10 128M-bit Synchronous DRAM 4-bank, LVTTL
UPD45128163G5-A10-9JF 128M-bit Synchronous DRAM 4-bank, LVTTL
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