參數(shù)資料
型號(hào): MT18VDVF6472DG-265XX
元件分類(lèi): DRAM
英文描述: 64M X 72 DDR DRAM MODULE, 0.75 ns, DMA184
封裝: DIMM-184
文件頁(yè)數(shù): 28/38頁(yè)
文件大小: 713K
代理商: MT18VDVF6472DG-265XX
PDF: 09005aef81c73825/Source: 09005aef81c73837
Micron Technology, Inc., reserves the right to change products or specifications without notice.
DVF18C64_128x72D_2.fm - Rev. A 8/05 EN
34
2003, 2004, 2005 Micron Technology, Inc. All rights reserved.
512MB, 1GB: (x72, DR) 184-Pin DDR VLP RDIMM
Serial Presence-Detect
Figure 15:
SPD EEPROM Timing Diagram
Table 17:
EEPROM Device Select Code
The most significant bit (b7) is sent first
Select Code
DEVICE TYPE IDENTIFIER
CHIP ENABLE
RW
b7
b6
b5
b4
b3
b2
b1
b0
Memory Area Select Code (two arrays)
1
0
1
0
SA2
SA1
SA0
RW
Protection Register Select Code
0
1
0
SA2
SA1
SA0
RW
Table 18:
EEPROM Operating Modes
Mode
RW Bit
WC
Bytes
Initial Sequence
Current Address Read
1VIH or VIL
1
START, Device Select, RW = ‘1’
Random Address Read
0VIH or VIL
1
START, Device Select, RW = ‘0’, Address
1VIH or VIL
1
reSTART, Device Select, RW = ‘1’
Sequential Read
1VIH or VIL
≥ 1
Similar to Current or Random Address Read
Byte Write
0VIL
1
START, Device Select, RW = ‘0’
Page Write
0VIL
≤ 16
START, Device Select, RW = ‘0’
SCL
SDA IN
SDA OUT
tLOW
tSU:STA
tHD:STA
tF
tHIGH
tR
tBUF
tDH
tAA
tSU:STO
tSU:DAT
tHD:DAT
UNDEFINED
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