MT9HTF12872AY-40ED1 Micron Technology Inc, MT9HTF12872AY-40ED1 Datasheet - Page 40

• Manufacturer Part Number: MT9HTF12872AY-40ED1
• Description: MODULE SDRAM DDR2 1GB 240DIMM
• Manufacturer: Micron Technology Inc

Specifications of MT9HTF12872AY-40ED1

• Memory Type: DDR2 SDRAM
• Memory Size: 1GB
• Speed: 400MT/s
• Package / Case: 240-DIMM
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Table 19:
Table 20:
Figure 15:
pdf: 09005aef80e6f860, source: 09005aef80e5b799
HTF9C32_64_128x72AG_2.fm - Rev. C 6/05 EN
SDA OUT
Select Code
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
EEPROM Device Select Code
The most significant bit (b7) is sent first
EEPROM Operating Modes
SPD EEPROM Timing Diagram
t SU:STA
256MB, 512MB, 1GB (x72, SR, ECC) 240-Pin DDR2 SDRAM UDIMM
RW Bit
t F
1
0
1
1
0
0
t HD:STA
t LOW
t AA
V
V
V
V
IH
IH
IH
IH
WC
V
V
or V
or V
or V
or V
IL
IL
b7
IL
IL
IL
IL
t HIGH
1
0
t HD:DAT
Device Type Identifier
Bytes
≤ 16
40
≥ 1
1
1
1
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.
b5
1
1
t SU:DAT
b4
0
0
©2003, 2004, 2005 Micron Technology, Inc. All rights reserved.
SA2
SA2
b3
Serial Presence-Detect
Chip Enable
SA1
SA1
b2
t SU:STO
t BUF
SA0
SA0
b1
UNDEFINED
RW
RW
RW
b0