mt5lsdt872ay-13e Micron Semiconductor Products, mt5lsdt872ay-13e Datasheet - Page 18

• Manufacturer Part Number: mt5lsdt872ay-13e
• Description: 32mb, 64mb, 128mb X72, Sr 168-pin Sdram Udimm
• Manufacturer: Micron Semiconductor Products

Table 17: EEPROM Device Select Code
The most significant bit (b7) is sent first
Table 18: EEPROM Operating Modes
32, 64, 128MB x 64 SDRAM DIMM
SD5C4_8_16x72AG.fm - Rev. C 6/04 EN
SDA OUT
MODE
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
RW BIT
Figure 9: SPD EEPROM Timing Diagram
1
0
1
1
0
0
t F
t HD:STA
V
V
V
V
IH
IH
IH
IH
t LOW
t AA
WC
V
V
or V
or V
or V
or V
IL
IL
IL
IL
IL
IL
t HIGH
t HD:DAT
BYTES
1
1
1
1
16
1
18
DEVICE TYPE IDENTIFIER
b7
1
0
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
32MB, 64MB, 128MB (x72, SR)
t R
Micron Technology, Inc., reserves the right to change products or specifications without notice.
b6
0
1
t SU:DAT
b5
168-PIN SDRAM UDIMM
1
1
INITIAL SEQUENCE
b4
0
0
SA2
SA2
b3
©2004 Micron Technology, Inc. All rights reserved.
CHIP ENABLE
SA1
SA1
t SU:STO
b2
t BUF
UNDEFINED
SA0
SA0
b1
RW
RW
RW
b0