MT46H8M32LFB5-75:A TR Micron Technology Inc, MT46H8M32LFB5-75:A TR Datasheet - Page 35
![IC DDR SDRAM 256MBIT 90VFBGA](/photos/7/23/72313/mfg557-90-vfbga_sml.jpg)
MT46H8M32LFB5-75:A TR
Manufacturer Part Number
MT46H8M32LFB5-75:A TR
Description
IC DDR SDRAM 256MBIT 90VFBGA
Manufacturer
Micron Technology Inc
Datasheet
1.MT46H16M16LFBF-6A_TR.pdf
(79 pages)
Specifications of MT46H8M32LFB5-75:A TR
Format - Memory
RAM
Memory Type
Mobile DDR SDRAM
Memory Size
256M (8Mx32)
Speed
133MHz
Interface
Parallel
Voltage - Supply
1.7 V ~ 1.95 V
Operating Temperature
0°C ~ 70°C
Package / Case
90-VFBGA
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
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Figure 20:
PDF: 09005aef82091978 / Source: 09005aef8209195b
MT46H16M16LF__2.fm - Rev. H 6/08 EN
Command
Command
Address
Address
READ-to-PRECHARGE
DQS
DQS
CK#
CK#
DQ
DQ
CK
CK
Notes:
5
5
Bank a,
Bank a ,
READ
READ
Col n
Col n
T0
T0
1. D
2. BL = 4 or an interrupted burst of 8.
3. Shown with nominal
4. READ-to-PRECHARGE equals 2 clock cycles, which allows 2 data pairs of data-out.
5. A READ command with auto precharge enabled, provided
6. PRE = PRECHARGE command; ACT = ACTIVE command.
precharge to be performed at x number of clock cycles after the READ command, where x =
BL/2.
OUT
CL = 2
n = data-out from column n.
NOP
NOP
T1
T1
CL = 3
T1n
T1n
t
AC,
(a or all)
Bank a,
( a or all )
D
Bank a ,
OUT
n
T2
PRE
T2
PRE
t
DQSCK, and
35
D
n+1
T2n
T2n
OUT
D
OUT
n
D
n+2
T3
NOP
Micron Technology, Inc., reserves the right to change products or specifications without notice.
T3
NOP
t
OUT
256Mb: x16, x32 Mobile DDR SDRAM
DQSQ.
Transitioning data
t RP
t RP
D
n+1
T3n
T3n
OUT
D
n+3
OUT
D
n+2
OUT
T4
T4
NOP
NOP
D
t
n+3
RAS (MIN) is met, would cause a
OUT
©2005 Micron Technology, Inc. All rights reserved.
Bank a ,
Bank a,
T5
T5
ACT
Row
ACT
Row
Don’t Care
Operations
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