MT48LC128M4A2_07 MICRON [Micron Technology], MT48LC128M4A2_07 Datasheet - Page 49
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MT48LC128M4A2_07
Manufacturer Part Number
MT48LC128M4A2_07
Description
512Mb x4, x8, x16 SDRAM
Manufacturer
MICRON [Micron Technology]
Datasheet
1.MT48LC128M4A2_07.pdf
(68 pages)
- Current page: 49 of 68
- Download datasheet (3Mb)
Timing Diagrams
Figure 33:
PDF: 09005aef809bf8f3/Source: 09005aef80818a4a
512MbSDRAM.fm - Rev. L 10/07 EN
DQML, DQMH
COMMAND
BA0, BA1
A11, A12
A0–A9,
DQM/
CKE
A10
DQ
CK
T = 100µs
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Power-up:
V
CLK stable
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MIN
DD
Initialize and Load Mode Register
and
t CKS
t CMS
Notes:
T0
NOP
t CKH
High-Z
t CMH
SINGLE BANK
t CMS
ALL BANKS
t CK
1. If CS is HIGH at clock high time, all commands applied are NOP.
2. The mode register may be loaded prior to the AUTO REFRESH cycles if desired.
3. JEDEC and PC100 specify three clocks.
4. Outputs are guaranteed High-Z after command is issued.
5. A12 should be a LOW at Tp + 1.
PRECHARGE
BANKS
T1
ALL
t CMH
t RP
Precharge
all banks
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t CMS
Tn + 1
REFRESH
AUTO
t CMH
t CH
AUTO REFRESH
t RFC
NOP
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NOP
49
t CL
To + 1
REFRESH
AUTO
AUTO REFRESH
Micron Technology, Inc., reserves the right to change products or specifications without notice.
t RFC
NOP
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NOP
512Mb: x4, x8, x16 SDRAM
t AS
t AS
LOAD MODE
Tp + 1
REGISTER
CODE
CODE
t AH
t AH
Program mode register
5
©2000 Micron Technology, Inc. All rights reserved.
t MRD
Timing Diagrams
Tp + 2
NOP
2, 3, 4
Tp + 3
ACTIVE
BANK
ROW
ROW
Don’t Care
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