MT18VDDT12872AY-335F1 Micron Technology Inc, MT18VDDT12872AY-335F1 Datasheet - Page 25
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MT18VDDT12872AY-335F1
Manufacturer Part Number
MT18VDDT12872AY-335F1
Description
MODULE DDR 1GB 184-DIMM
Manufacturer
Micron Technology Inc
Specifications of MT18VDDT12872AY-335F1
Memory Type
DDR SDRAM
Memory Size
1GB
Speed
333MT/s
Package / Case
184-DIMM
Main Category
DRAM Module
Sub-category
DDR SDRAM
Module Type
184UDIMM
Device Core Size
72b
Organization
128Mx72
Total Density
1GByte
Chip Density
512Mb
Maximum Clock Rate
333MHz
Operating Supply Voltage (typ)
2.5V
Operating Current
1.62A
Number Of Elements
18
Operating Supply Voltage (max)
2.7V
Operating Supply Voltage (min)
2.3V
Operating Temp Range
0C to 70C
Operating Temperature Classification
Commercial
Pin Count
184
Mounting
Socket
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Table 17: EEPROM Device Select Code
Most significant bit (b7) is sent first
Table 18: EEPROM Operating Modes
pdf: 09005aef80814e61, source: 09005aef80a43eed
DDA18C32_64_128x72AG.fm - Rev. E 9/04 EN
SELECT CODE
MODE
SDA OUT
Memory Area Select Code (two arrays)
Protection Register Select Code
Current Address Read
Random Address Read
Sequential Read
Byte Write
Page Write
SDA IN
SCL
t SU:STA
Figure 14: SPD EEPROM Timing Diagram
RW BIT
1
0
1
1
0
0
t F
t HD:STA
t LOW
t AA
V
V
V
V
IH
IH
IH
IH
256MB, 512MB, 1GB (x72, ECC, DR), PC3200
WC
V
V
or V
or V
or V
or V
IL
IL
IL
IL
IL
IL
b7
t HIGH
1
0
DEVICE TYPE IDENTIFIER
t HD:DAT
BYTES
25
1
1
1
1
16
1
b6
0
1
t DH
INITIAL SEQUENCE
START, Device Select, RW = ‘1’
START, Device Select, RW = ‘0’, Address
reSTART, Device Select, RW = ‘1’
Similar to Current or Random Address Read
START, Device Select, RW = ‘0’
START, Device Select, RW = ‘0’
t R
Micron Technology, Inc., reserves the right to change products or specifications without notice.
184-PIN DDR SDRAM UDIMM
b5
1
1
t SU:DAT
b4
0
0
SA2
SA2
b3
CHIP ENABLE
SA1
SA1
b2
t SU:STO
t BUF
©2004 Micron Technology, Inc.
SA0
SA0
b1
UNDEFINED
RW
RW
RW
b0