MT46H8M32LFB5-6:A TR Micron Technology Inc, MT46H8M32LFB5-6:A TR Datasheet - Page 67

• Manufacturer Part Number: MT46H8M32LFB5-6:A TR
• Description: IC DDR SDRAM 256MBIT 90VFBGA
• Manufacturer: Micron Technology Inc
• Type: DDR SDRAMr

Specifications of MT46H8M32LFB5-6:A TR

• Format - Memory: RAM
• Memory Type: Mobile DDR SDRAM
• Memory Size: 256M (8Mx32)
• Speed: 166MHz
• Interface: Parallel
• Voltage - Supply: 1.7 V ~ 1.95 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 90-VFBGA
• Organization: 8Mx32
• Density: 256Mb
• Address Bus: 14b
• Access Time (max): 6.5/5ns
• Maximum Clock Rate: 166MHz
• Operating Supply Voltage (typ): 1.8V
• Package Type: VFBGA
• Operating Temp Range: 0C to 70C
• Operating Supply Voltage (max): 1.95V
• Operating Supply Voltage (min): 1.7V
• Supply Current: 120mA
• Pin Count: 90
• Mounting: Surface Mount
• Operating Temperature Classification: Commercial
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 557-1280-2; MT46H8M32LFB5-6:A TR

Figure 38:
PDF: 09005aef82091978 / Source: 09005aef8209195b
MT46H16M16LF__2.fm - Rev. H 6/08 EN
DQ (First data no longer valid)
DQ (First data no longer valid)
DQ and DQS collectively
DQ (Last data valid)
DQ (Last data valid)
DQM0/DQM1/DQM2/DQM3
Data Output Timing –
Notes:
CK#
DQ
DQ
DQ
DQ
DQ
DQ
CK
2
2
2
2
2
2
2
2
2
2
6
1. DQ transitioning after DQS transitions defines the
2. Byte 0 is DQ[7:0]; byte 1 is DQ[15:8]; byte 2 is DQ[23:16]; byte 3 is DQ[31:24].
3.
4.
5.
6. The data valid window is derived for each DQS transition and is
T1
t
DQS transition and ends with the last valid DQ transition.
t
t
DQSQ is derived at each DQS clock edge and is not cumulative over time and begins with
QH is derived from
HP is the lesser of
t HP
5
t
DQSQ,
t HP
5
t DQSQ
t QH
t
T2
CL or
4
t
Data valid
t
QH, and Data Valid Window (x32)
3
HP:
window
T2
T2
T2
t HP
t
t
QH =
5
CH clock transition collectively when a bank is active.
t DQSQ
T2n
67
t QH
Data valid
t
HP -
4
window
3
t HP
T2n
T2n
T2n
5
t
QHS.
Micron Technology, Inc., reserves the right to change products or specifications without notice.
T3
256Mb: x16, x32 Mobile DDR SDRAM
t DQSQ
t QH
t HP
4
Data valid
window
3
5
T3
T3
T3
T3n
t
DQSQ window.
t DQSQ
t HP
t QH
5
4
Data valid
3
window
T4
T3n
T3n
T3n
©2005 Micron Technology, Inc. All rights reserved.
t
QH -
Timing Diagrams
t
DQSQ.