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參數(shù)資料
| 型號(hào)： | UPD45128163-A75L |
| 廠商： | Elpida Memory, Inc. |
| 英文描述： | 128M-bit Synchronous DRAM 4-bank, LVTTL |
| 中文描述： | 128兆位同步DRAM 4銀行，LVTTL |
| 文件頁(yè)數(shù)： | 30/86頁(yè) |
| 文件大?。?/td> | 821K |
| 代理商： | UPD45128163-A75L |
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Data Sheet E0344N10 (Ver. 1.0)
30
μ
PD45128163
12.2 Precharge Termination
12.2.1 Precharge Termination in READ Cycle
During a read cycle, the burst read operation is terminated by a precharge command.
When the precharge command is issued, the burst read operation is terminated and precharge starts.
The same bank can be activated again after t
RP
from the precharge command.
To issue a precharge command, t
RAS
must be satisfied.
When /CAS latency is 2, the read data will remain valid until one clock after the precharge command.
READ
CLK
T0
T2
T1
T3
T4
T5
T6
T7
Burst length = X, /CAS latency = 2
Q1
DQ
Command
Q2
Q3
Q4
ACT
t
RP
PRE
Hi-Z
(t
RAS
must be satisfied)
When /CAS latency is 3, the read data will remain valid until two clocks after the precharge command.
READ
CLK
T0
T2
T1
T3
T4
T5
T6
T7
Burst length = X, /CAS latency = 3
DQ
Command
Q1
Q2
Q3
ACT
t
RP
PRE
Hi-Z
T8
Q4
(t
RAS
must be satisfied)
相關(guān)PDF資料 |
PDF描述 |
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| UPD45128163G5-A10LT-9JF | 128M-bit Synchronous DRAM 4-bank, LVTTL WTR (Wide Temperature Range) |
| UPD45128163G5-A80T-9JF | 128M-bit Synchronous DRAM 4-bank, LVTTL WTR (Wide Temperature Range) |
| UPD45128163G5-A75T-9JF | 128M-bit Synchronous DRAM 4-bank, LVTTL WTR (Wide Temperature Range) |
| UPD45128163G5-A10T-9JF | 128M-bit Synchronous DRAM 4-bank, LVTTL WTR (Wide Temperature Range) |
| UPD45128163G5-A80-9JF | 128M-bit Synchronous DRAM 4-bank, LVTTL |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| UPD45128163G5 | 制造商:Renesas Electronics Corporation 功能描述:128 MBIT SDRAM |
| UPD45128163G5-A75-9JF | 制造商:Elpida Memory Inc 功能描述:8M X 16 SYNCHRONOUS DRAM, 5.4 ns, PDSO54 |
| UPD45128841G5-A75-9JF | 制造商:NEC Electronics Corporation 功能描述:SDRAM, 16M x 8, 54 Pin, Plastic, TSOP |
| UPD4516161AG5A109NF | 制造商:NEC Electronics Corporation 功能描述: |
| UPD4516161AG5-A10-9NF | 制造商:NEC Electronics Corporation 功能描述:SDRAM, 1M x 16, 50 Pin, Plastic, TSOP |
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