MT18LSDT6472G-133D2 Micron Technology Inc, MT18LSDT6472G-133D2 Datasheet - Page 17

• Manufacturer Part Number: MT18LSDT6472G-133D2
• Description: MODULE SDRAM 512MB 168DIMM
• Manufacturer: Micron Technology Inc

Specifications of MT18LSDT6472G-133D2

• Memory Type: SDRAM
• Memory Size: 512MB
• Speed: 133MHz
• Package / Case: 168-DIMM
• Main Category: DRAM Module
• Sub-category: SDRAM
• Module Type: 168RDIMM
• Device Core Size: 72b
• Organization: 64Mx72
• Total Density: 512MByte
• Chip Density: 256Mb
• Access Time (max): 6/5.4ns
• Maximum Clock Rate: 133MHz
• Operating Supply Voltage (typ): 3.3V
• Operating Current: 2.43A
• Number Of Elements: 18
• Operating Supply Voltage (max): 3.6V
• Operating Supply Voltage (min): 3V
• Operating Temp Range: 0C to 55C
• Operating Temperature Classification: Commercial
• Pin Count: 168
• Mounting: Socket
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Table 17: EEPROM Device Select Code
Most significant bit (b7) is sent first)
Table 18: EEPROM Operating Modes
16,32,Meg x 64 DDR SDRAM DIMMs (Footer Desc variable)
SD18C16_32_64x72G_B.fm - Rev. B 1/03 EN
SDA OUT
SELECT CODE
Memory Area Select Code (Two Arrays)
Protection Register Select Code
Current Address Read
Random Ddress Read
Sequential Read
Byte Write
Page Write
SDA IN
SCL
MODE
t SU:STA
RW BIT
1
0
1
1
0
0
Figure 9: SPD EEPROM Timing Diagram
t F
t HD:STA
V
V
V
V
t LOW
t AA
IH
IH
IH
IH
WC
V
V
or V
or V
or V
or V
IL
IL
IL
IL
IL
IL
b7
1
0
t HIGH
BYTES
t HD:DAT
£ 16
DEVICE TYPE IDENTIFIER
³ 1
1
1
1
168-PIN REGISTERED SDRAM DIMM
b6
17
0
1
128MB, 256MB, 512MB (x72, ECC)
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 DH
b5
1
1
t R
Micron Technology, Inc., reserves the right to change products or specifications without notice.
t SU:DAT
b4
0
0
SA2
SA2
b3
CHIP ENABLE
SA1
SA1
b2
t SU:STO
SA0
SA0
b1
t BUF
©2003, Micron Technology Inc.
UNDEFINED
RW
RW
RW
b0